CN210188835U - Roller feeding frame with synchronous moving structure and pipe cutting machine - Google Patents

Abstract

The roller feeding frame and the pipe cutting machine with the synchronous moving structure comprise a supporting frame and a roller group rotationally arranged on the supporting frame, wherein the roller group comprises a left row of rollers and a right row of rollers which are arranged at the left and right sides, and a material space through which materials can pass is arranged between the left row of rollers and the right row of rollers; the device is characterized in that the support frame comprises a left support frame and a right support frame which are arranged on the left and the right respectively, a left row of idler wheels in the idler wheel group are respectively and rotatably arranged on the left support frame, and a right row of idler wheels are respectively and rotatably arranged on the right support frame; the utility model has the advantages of: through reference column and synchronizer's cooperation, let left branch strut, right branch strut be close to in step or gradually leave under the circumstances that the position of central line keeps unchangeable between confirming left side row gyro wheel and the right side row gyro wheel to can the different size specification's of adaptation material, enlarge the application scope of gyro wheel pay-off frame, and can apply even, moderate clamping-force respectively from the left and right sides of material, be favorable to improving push speed.

Description

Roller feeding frame with synchronous moving structure and pipe cutting machine

Technical Field

The invention relates to a feeding device for conveying materials, in particular to a roller feeding frame with a synchronous moving structure. The invention also relates to a pipe cutting machine for conveying pipes by using the roller feeding frame.

Background

The tube stock just produced is often as long as 6m, 10m or even longer, so that the long tube must be cut into short tubes of a certain length in advance before it is applied to a specific product. The traditional cutting method adopts manual cutting, so that the precision is low, and the working efficiency is very low. Later on, cutting machines which automatically cut and process the pipes by adopting electric cutting knives appear on the market. However, with the rapid development of modern industrialization, more and more fields need to be applied to the pipe, and the demand of the pipe is increased greatly. The mode of carrying out automatic cutting by relying on the electric cutter can not completely meet the increase of high demand of the pipe. People pursue a pipe cutting machine with higher cutting speed and higher precision. The laser cutting machine is produced by transportation, the laser cutting machine adopts the laser head to cut the pipe, and the cutting efficiency and the cutting precision are higher than those of the automatic cutting knife by a plurality of times.

In order to adapt the laser cutting machine to its efficient cutting efficiency, it must be equipped with a feed device that can feed material quickly. The utility model discloses a laser cutting machine for tubular product in 201621414627.2, this laser cutting machine has used a transport mechanism that is used for centre gripping and transmission tubular product, transport mechanism includes transmission portion, lower transmission portion to and be used for driving the first motor of transmission portion motion. Go up transmission portion includes two drive wheels, synchronizing wheel and belt are connected in the transmission of first motor, the synchronizing wheel passes through the belt and is connected with every drive wheel transmission. The lower transmission part includes three driven wheels. The feeding device further comprises an adjusting part used for adjusting the distance between the upper transmission part and the lower transmission part, the adjusting part comprises an adjusting hand wheel and a transmission part II, the transmission part II comprises a rotating shaft with left-handed threads and right-handed threads, a first threaded part connected with the left-handed threads and a second threaded part connected with the right-handed threads, and the upper transmission part and the lower transmission part are respectively connected with the first threaded part and the second threaded part. The adjusting hand wheel drives the rotating shaft to rotate, and the upper transmission part and the lower transmission part open or close to move, so that the effect of adjusting the distance between the driving wheel and the driven wheel is achieved.

Disclosure of Invention

The feeding frame in patent 201621414627.2 adjusts the material distance between the upper conveying part and the lower conveying part through a double-thread transmission structure, and is a common adjusting structure in the industry, while the feeding frame of the invention adopts a brand-new material distance adjusting structure. The invention provides a roller feeding frame with a synchronous moving structure, which comprises a support frame and a roller group rotationally arranged on the support frame, wherein the roller group comprises a left roller row and a right roller row which are arranged at the left and right, and a material space through which materials can pass is arranged between the left roller row and the right roller row; the roller train is characterized in that the supporting frame comprises a left supporting frame and a right supporting frame which are arranged on the left and the right respectively, a left row of rollers in the roller train are respectively and rotatably arranged on the left supporting frame, and a right row of rollers are respectively and rotatably arranged on the right supporting frame; the left support frame and the right support frame are movably arranged on the sliding support rails; the positioning column is fixedly connected to the bottom frame and is positioned between the left support frame and the right support frame; still be provided with synchronizer between left branch strut, the right branch strut, synchronizer is including first, second transmission arm, first, second transmission arm not only be associated with simultaneously the reference column but also be associated with respectively the left branch strut or the right branch strut, the reference column with synchronizer cooperation not only is used for guaranteeing that left branch strut, right branch strut are synchronous relatively and are close to or gradually leave, is used for confirming when adjusting the material interval the position of central line keeps unchangeable between left side row of gyro wheel and the right side row of gyro wheel.

The positioning column is fixedly connected to the bottom frame and located between the left support frame and the right support frame, the position of the positioning column is defined by the characteristic, and firstly, the positioning column can be directly or indirectly fixedly connected to the bottom frame so as to have a fixed position relative to the left support frame and the right support frame. The positioning columns are arranged corresponding to the space between the left support frame and the right support frame, and the positioning columns can be located in the space between the left support frame and the right support frame or can be located outside the space between the left support frame and the right support frame.

Wherein, the association structure between the first and second transmission arms and the positioning column, and between the first and second transmission arms and the left support frame or the right support frame can be various, for example:

the first kind is related to the structure, the synchronizer is the chevron shape, the head end of first, second transmission arm passes through the articulated shaft articulated together, the articulated shaft slides and sets up and keep on the reference column the left side is listed as the gyro wheel with reciprocate on the central line between the gyro wheel is listed as to the right side, and concrete structure can be set up on the reference column and follow the spout that the central line extends from top to bottom, the articulated shaft slides and sets up in the spout, and the tail end of first transmission arm rotates and sets up on the left branch strut, the tail end of second transmission arm rotates and sets up on the right branch strut. Therefore, when the left support frame is driven to move on the sliding support rail and gradually leave the right support frame, the first transmission arm rotates around the tail end and simultaneously drives the hinge shaft to slide in the sliding groove, and the hinge shaft in sliding pulls the right support frame to move on the sliding support rail through the second transmission arm and gradually leaves the left support frame, and vice versa.

The second kind is associative structure, synchronizer is the cross, the middle part position of first, second driving arm is in the same place through articulated shaft is articulated, the articulated shaft is fixed to be set up on the reference column and be located a left side is listed as the gyro wheel with on the central line between the gyro wheel is listed as on the right side, and the head end of first, second driving arm slides respectively and sets up on the left branch strut the tail end of first, second driving arm slides respectively and sets up on the right branch strut. When the left support frame is driven to move on the sliding support rail and gradually leave from the right support frame, the head ends of the first transmission arm and the second transmission arm respectively rotate around the hinge shaft and slide towards each other to approach, so that the tail ends of the first transmission arm and the second transmission arm also respectively rotate around the hinge shaft and slide towards each other to approach, and the right support frame is pulled to move on the sliding support rail and gradually leave from the left support frame, and vice versa.

The first end of the first transmission arm is rotatably arranged on the positioning column through a left rotating shaft, the tail end of the first transmission arm is slidably arranged on the left supporting frame, the head end of the second transmission arm is rotatably arranged on the positioning column through a right rotating shaft, the tail end of the second transmission arm is slidably arranged on the right supporting frame, transmission teeth are arranged between the head end of the first transmission arm and the head end of the second transmission arm, the left rotating shaft and the right rotating shaft are symmetrically arranged on the left side and the right side of a central line between rollers. When the left support frame is driven to move on the sliding support rail and gradually leave the right support frame, the first transmission arm rotates around the left rotating shaft, meanwhile, the second transmission arm is driven to rotate around the right rotating shaft through the transmission teeth, so that the right support frame is pulled to move on the sliding support rail and gradually leave the left support frame, and vice versa.

And in a fourth correlation structure, the synchronizer is in a herringbone shape, the head ends of the first transmission arm and the second transmission arm are hinged together through a hinge shaft, the hinge shaft is fixedly arranged on the positioning column and is positioned on a central line between the left row of rollers and the right row of rollers, the tail end of the first transmission arm is arranged on the left support frame in a sliding manner, and the tail end of the second transmission arm is arranged on the right support frame in a sliding manner. Therefore, when the first transmission arm and the second transmission arm are synchronously driven to swing around the hinged shaft in an opening and closing manner, the left support frame and the right support frame can be drawn to relatively synchronously approach or gradually separate.

According to the technical scheme, the invention has the beneficial technical effects that: through the cooperation of the positioning columns and the synchronizing device, the left support frame and the right support frame are enabled to synchronously approach or gradually separate under the condition that the position of the central line between the left row of rollers and the right row of rollers is ensured to be unchanged, so that materials with different sizes can be adapted, the application range of the roller feeding frame is expanded, and uniform and moderate clamping force can be applied from the left side and the right side of the materials respectively.

The further technical scheme can also be that a left groove and a right groove for clamping materials are respectively arranged on the outer circumferential surfaces of the rollers of the left row of rollers and the right row of rollers, and the left groove and the right groove are arranged in a matching way in a left-right mode. Therefore, the centers of the left groove and the right groove have the same height, and the clamping force of the left row of rollers and the right row of rollers can act on the same height position of the material, so that the clamping stability is improved.

The further technical scheme can also be that the device further comprises a moving driver, and the moving driver is used for driving the left support frame and the right support frame to relatively synchronously approach or gradually separate. Wherein the moving driver becomes a power source for the movement of the left support frame and the right support frame. The power output end of the moving driver can be connected to the left support frame, the right support frame or the hinge point.

The technical scheme of the device further includes that the device further includes a pair of positioning columns and a pair of synchronizing devices, the pair of positioning columns and the pair of synchronizing devices are respectively arranged on the front side and the rear side of the bottom frame, an output shaft of the moving driver is connected to the right supporting frame, and the moving driver is used for driving the right supporting frame to move and is matched with the synchronizing devices through the positioning columns to pull the left supporting frame to move. Like this, the removal driver not only can drive the right branch frame removes, can also pass through the right branch frame is with the help of a pair of reference column and synchronizer are right from both sides around simultaneously the drive power is applyed to the left branch frame, improves the operating stability of left branch frame, right branch frame, even when the gyro wheel quantity ratio of installing on left branch frame, the right branch frame is many and during the load, still can exert even clamping-force to the material between the gyro wheel of left side row, the right side row gyro wheel.

The further technical scheme can also be that the device also comprises a pair of guide rails, and the pair of guide rails and the sliding support rails are arranged on the support frame in a staggered manner; one end of the guide rail is fixedly connected with the left support frame or the right support frame, the other end of the guide rail is connected with the other support frame in a sliding mode, or the guide rail is fixedly connected with the positioning column, and two ends of the guide rail extending from two sides of the positioning column are respectively connected with the left support frame and the right support frame in a sliding mode. Therefore, sliding guide can be provided for the left support frame and the right support frame from different positions, so that the left support frame and the right support frame can be guided to move relatively in a coordinated mode, and the stability of the relative movement between the left support frame and the right support frame is enhanced.

The further technical scheme can also be that the roller wheel assembly further comprises a peripheral enclosing plate and a panel, wherein the panel covers and presses the peripheral enclosing plate, an opening part is reserved on the panel, the peripheral enclosing plate and the panel are combined to form an accommodating space, the supporting frame is accommodated in the accommodating space, and the roller wheel assembly is exposed in the opening part. Therefore, the peripheral enclosing plate and the panel hide the underframe and the support frame, and scrap iron and dust formed in the cutting process are prevented from being adhered to the support frame in a large quantity to influence the use.

The technical scheme is that the device also comprises a main driver and a torque transmission shaft in transmission connection with an output shaft of the main driver, wherein the torque transmission shaft not only extends to the position of the left support frame but also extends to the right support frame; at least one pair of rollers are driving rollers and comprise a left driving roller and a right driving roller, one of the left driving rollers is in transmission connection with the torque transmission shaft through a left transmission device, and the other one of the right driving rollers is in transmission connection with the torque transmission shaft through a right transmission device. Therefore, the left driving roller and the right driving roller can be driven by the torque transmission shaft to rotate actively, so that pushing force can be applied to materials from the left side and the right side respectively, and the conveying speed is improved.

The technical scheme includes that the left transmission device comprises a first left gear and a transmission which are arranged on a rotating shaft of the left driving roller, the first left gear and the transmission are arranged on a torque transmission shaft, the first transmission gear can be in meshing transmission with the first left gear, the right transmission device comprises a first right gear and a transmission which are arranged on a rotating shaft of the right driving roller, the torque transmission shaft can be in meshing transmission with the first right gear, the first transmission gear is arranged on the left support frame, and the second transmission gear is arranged on the right support frame. Therefore, the first transmission gear and the left support frame have synchronous displacement, and when the left support frame moves, meshing transmission can be kept between the first transmission gear and the first left gear. And the second transmission gear and the right support frame have synchronous displacement, and when the right support frame moves, the second transmission gear and the first right gear can keep meshed transmission. The moment of the moment transmission shaft can be basically synchronously transmitted to the left driving roller and the right driving roller through the meshing transmission between the first left gear and the first transmission gear and between the first right gear and the second transmission gear, the left driving roller and the right driving roller have consistent rotating linear speeds and can synchronously provide material pushing force from the left side and the right side, and the conveying speed and the conveying precision are greatly improved. On the basis, the length of the material conveyed forwards under the pushing of the left driving roller and the right driving roller can be calculated by arranging an encoder for measuring the angular displacement of the torque transmission shaft, the left driving roller or the right driving roller.

The further technical scheme can also be that all the rollers are active rollers, adjacent rollers in the left row of rollers on the left side are in synchronous transmission connection, and adjacent rollers in the right row of rollers on the right side are in synchronous transmission connection. Therefore, all rollers in the left row of rollers and all rollers in the right row of rollers can apply pushing force to the materials, the total pushing resultant force borne by the materials is increased, and the conveying speed is further improved.

The further technical scheme can also be that adjacent left rows of rollers in the left rows of rollers are in synchronous meshing transmission connection through gears, and adjacent right rows of rollers in the right rows of rollers are in synchronous meshing transmission connection through gears. In this way, all the rollers in the left row of rollers have consistent rotating linear speeds, and all the rollers in the right row of rollers have consistent rotating linear speeds, so that the conveying precision of the left row of rollers and the conveying precision of the right row of rollers can be further improved.

In addition, the invention also provides a pipe cutting machine applying the roller feeding frame, which comprises the roller feeding frame and a laser cutting assembly, wherein the laser cutting assembly comprises a laser head for cutting, and the laser head is used for cutting the materials conveyed by the roller feeding frame.

The further technical scheme can also be that the pipe machining device further comprises a clamping device, and the roller feeding frame is used for providing the received machining pipe for the clamping device; the clamping device is used for clamping the materials conveyed by the roller feeding frame, and the laser head is also used for cutting the materials when the clamping device clamps the materials.

The further technical scheme can also be that the clamping device can rotate, and the roller feeding frame is also used for loosening the pipe to be processed when the clamping device rotates; the clamping device is also used for clamping the materials delivered by the roller feeding frame and driving the materials to rotate during cutting; the laser head is also used for cutting off the materials when the clamping device drives the materials to rotate.

The further technical scheme can also be that a wire length metering device is arranged on the roller feeding frame or between the roller feeding frame and the clamping device. Therefore, the length of the material conveyed forwards by the roller feeding frame is measured by the wire length measuring device, so that the material can be accurately cut according to the specified length.

The technical scheme can also be that the pipe machining device further comprises a front material conveying frame, wherein the front material conveying frame is located in front of the roller material feeding frame, and the front material conveying frame is used for providing a machined pipe material for the roller material feeding frame.

The further technical scheme can also be that the device further comprises a feeding positioning device, and the feeding positioning device is used for positioning the materials which are conveyed from the front material conveying frame and reach the roller feeding frame for the first time.

The invention has the characteristics and advantages, so the invention can be applied to a roller feeding frame and a pipe cutting machine.

Drawings

FIG. 1 is a schematic front view of a pipe cutting machine to which the present invention is applied;

FIG. 2 is a schematic perspective view of the pipe cutting machine;

FIG. 3 is a schematic perspective view of the pipe cutting machine from another perspective;

fig. 4 is a schematic structural view of the roller feeding frame, and the peripheral enclosing plate 8 and the panel 81 are omitted;

fig. 5 is a schematic perspective view of the positioning post;

fig. 6 shows a second structure of the synchronization device, the positioning post and the supporting frame;

fig. 7 shows a third structure of the synchronization device, the positioning post and the supporting frame;

FIG. 8 is a fourth structure of the synchronization device, the positioning post and the supporting frame

FIG. 9 is a schematic cross-sectional view of the roller feeding stand;

FIG. 10 is a schematic view of a portion of the area A in FIG. 9;

FIG. 11 is a schematic view of the transmission structure between the rollers in the left row of rollers a;

fig. 12 is a perspective view of the left auxiliary mount 15.

Detailed Description

The roller feeding rack 100 and the structure of the pipe cutting machine to which the present invention is applied will be further described with reference to the accompanying drawings.

As shown in fig. 1, fig. 2 and fig. 3, the structure of the pipe cutting machine is schematically illustrated, and the pipe cutting machine includes the roller feeding frame 100, a front feeding frame 500 located in front of the roller feeding frame 100, a laser cutting assembly 200 located in back of the roller feeding frame 100, and a clamping device 300 located between the laser cutting assembly 200 and the roller feeding frame 100. During the cutting process, the front feeding frame 500 supplies the machining pipe to the roller feeding frame 100. The roller feeder carriage 100 supplies the received processed pipe to the clamping device 300. The clamping device 300 clamps the material delivered by the roller feeder 100 and can drive the material to rotate during cutting. When the clamping device 300 rotates, the roller feeding frame 100 loosens the machined pipe. The laser cutting assembly 200 comprises a cutting laser head 201, and when the clamping device 300 drives the material to rotate, the laser head 201 cuts the material clamped on the clamping device 300. The automatic feeding device further comprises a feeding positioning device 600, wherein the feeding positioning device 600 is arranged above the roller feeding frame 100 and can be installed on the roller feeding frame 100 or the front conveying frame 500. The feeding positioning device 600 is used for positioning the material which is conveyed from the front feeding rack 500 and reaches the roller feeding rack 100 for the first time. A wire length measuring device 400 is disposed between the roller feeding frame 100 and the clamping device 300. Of course, in other embodiments, the wire length metering device 400 may also be disposed on the roller feeding rack 100.

The following is a description of a specific structure of the roller feeder 100 having the synchronous moving structure. As shown in fig. 4 and 5, the roller feeding frame 100 includes a support frame (1, 1 a) and a roller group rotatably disposed on the support frame (1, 1 a), the roller group includes a left roller a and a right roller b arranged left and right, and a material space 12 capable of allowing a material to pass through is disposed between the left roller a and the right roller b. The outer circumferential surfaces of the rollers of the left row of rollers a and the right row of rollers b are respectively provided with a left groove 102 and a right groove 112 for clamping materials, and the left groove 102 and the right groove 112 are arranged in a left-right matching manner. Therefore, the centers of the left groove 102 and the right groove 112 have the same height, and the clamping force of the left row of rollers a and the right row of rollers b can act on the same height position of the material, so that the clamping stability is improved. The supporting frame comprises a left supporting frame 1 and a right supporting frame 1a which are arranged on the left and the right respectively, a left row of idler wheels a in the idler wheel group are respectively arranged on the left supporting frame 1 in a rotating mode, and a right row of idler wheels b are respectively arranged on the right supporting frame 1a in a rotating mode. The foldable support frame is characterized by further comprising a base frame 13, wherein the base frame 13 comprises a pair of sliding support rails (2 and 2 a), and the left support frame 1 and the right support frame 1a are movably arranged on the pair of sliding support rails (2 and 2 a). The support frame further comprises a pair of positioning columns (4, 4 a), and the pair of positioning columns (4, 4 a) are fixedly connected to the front side and the rear side of the bottom frame 13 and are positioned between the left support frame 1 and the right support frame 1 a. The positioning post 4 and the positioning portion 4a have similar structures, and the positioning post 4 is taken as an example for description. The positioning post 4 includes a post main body 40 and a mounting arm 41 extending from the post main body 40, and the post main body 40 is provided with a slide groove 401 extending vertically along a center line O-O between the left row of rollers a and the right row of rollers b. The positioning column 4 is located outside the space between the left and right support frames 1, 1a and is mounted to the peripheral enclosing plate 8 suggested and discussed below through the mounting arm 41 so as to be indirectly attached to the bottom frame 13 and have a fixed position relative to the left and right support frames 1, 1 a. Of course, in other embodiments, the positioning column 4 may also be located in the space between the left support frame 1 and the right support frame 1a and directly fixed to the bottom frame 13.

As shown in fig. 4, a pair of synchronizing devices (3, 3a) is further disposed between the left support frame 1 and the right support frame 1a, and the pair of synchronizing devices (3, 3a) are respectively disposed at the front and rear sides of the underframe. The synchronizing device 3 and the synchronizing device 3a have similar structures, the synchronizing device 3 is similar to the positioning column 4, the left support frame 1 and the right support frame 1a, and the synchronizing device 3a is similar to the positioning column 4a, the left support frame 1 and the right support frame 1a, and the structure of the synchronizing device 3 and the positioning column 4, the left support frame 1 and the right support frame 1a are described as examples. The synchronizer 3 is in a herringbone shape and comprises a first transmission arm and a second transmission arm (31 and 32), the head ends (312 and 322) of the first transmission arm and the second transmission arm (31 and 32) are hinged together through a hinge shaft 33, the hinge shaft 33 is arranged in the sliding groove 401 of the positioning column 4 in a sliding mode and keeps moving up and down on a center line O-O between the left row of rollers a and the right row of rollers b, the tail end 311 of the first transmission arm 31 is arranged on the left support frame 1 in a rotating mode, and the tail end 321 of the second transmission arm 32 is arranged on the right support frame 1a in a rotating mode. In this way, the first and second transmission arms (31, 32) are not only simultaneously associated with the positioning column 4 but also respectively associated with the left support frame 1 or the right support frame 1 a. The sliding device further comprises a moving driver 7 for driving the left support frame 1 and the right support frame 1a to relatively approach or gradually separate from each other synchronously, an output shaft of the moving driver 7 is connected to the right support frame 1a, when the moving driver 7 drives the right support frame 1a to move on the sliding support rails (2, 2 a) and gradually separate from the left support frame 1, the second transmission arm 32 rotates around a tail end 321 and simultaneously drives the hinge shaft 33 to slide in the sliding groove 401, and the hinge shaft 33 in sliding drives the left support frame 1 to synchronously move on the sliding support rails (2, 2 a) through the first transmission arm 31 so as to gradually separate from the right support frame 2. Conversely, when the moving driver 7 drives the right support frame 1a to move on the sliding support rails (2, 2 a) to approach the left support frame 1, the positioning column 4 and the synchronization device 3 are matched to draw the left support frame 1 to synchronously move to approach the right support frame 1 a. Of course, in other embodiments, it is also possible to use a different association structure between the synchronization device 3a and the positioning column 4a, the left support frame 1, and the right support frame 1a, for example, a second association structure to be discussed below; or only one positioning column and one synchronizing device are arranged.

According to the technical scheme, the following can be found: through the matching of the positioning columns (4, 4 a) and the synchronizing devices (3, 3a), the left support frame 1 and the right support frame 1a are enabled to synchronously approach or gradually separate under the condition that the position of a central line O-O between the left row of rollers a and the right row of rollers b is kept unchanged, so that the roller feeding frame can be adapted to materials with different sizes, the application range of the roller feeding frame is expanded, uniform and moderate clamping force can be applied from the left side and the right side of the material respectively, and the pushing speed is improved. In addition, the pair of positioning columns (4, 4 a) and the pair of synchronizing devices (3, 3a) are arranged, so that the pair of positioning columns (4, 4 a) and the pair of synchronizing devices (3, 3a) can synchronously control the movement of the left support frame 1 and the right support frame 1a from the front side and the rear side, the movement stability of the left support frame 1 and the right support frame 1a is improved, and the clamping force of the roller on the materials can be further uniformized. The moving driver 7 can not only drive the right support frame 1a to move, but also apply driving force to the left support frame 1 from the front side and the rear side through the right support frame 1a by means of the pair of positioning columns (4, 4 a) and the pair of synchronizing devices (3, 3a), and when the number of rollers mounted on the left support frame 1 and the right support frame 1a is large and the load is heavy, uniform clamping force can still be applied to materials between the left row of rollers a and the right row of rollers b.

Besides, the following associated structures can be selected to be adopted among the synchronizing device, the positioning column, the left support frame 1 and the right support frame 1 a:

in a second related structure, as shown in fig. 6, the synchronizing device 3 "is cross-shaped, the middle positions of the first and second transmission arms (31", 32 ") are hinged together through a hinge shaft 33", the hinge shaft 33 "is fixedly disposed on the positioning column 4" and is located on the center line O-O between the left row of rollers a and the right row of rollers b, the head ends (311 ", 321") of the first and second transmission arms (31 ", 32") are respectively slidably disposed on the chute 14 of the left support frame 1, and the tail ends (312 ", 322") of the first and second transmission arms (31 ", 32") are respectively slidably disposed on the chute 14a of the right support frame 1 a. When the left support frame 1 is driven to move on the sliding support rails (2, 2 a) and gradually leave the right support frame 1a, the head ends (311 ', 321') of the first and second transmission arms respectively rotate around the hinge shaft 33 'and slide towards each other to approach, so that the tail ends of the first and second transmission arms (31', 32 ') also simultaneously rotate around the hinge shaft 33' and slide towards each other to approach, thereby drawing the right support frame 1a to synchronously move on the sliding support rails (2, 2 a) and gradually leave the left support frame 1, and vice versa.

In the third related structure, as shown in fig. 7, the head end 312 'of the first transmission arm 31' is rotatably disposed on the positioning post 4 'through a left rotation shaft 313', the tail end 311 'of the first transmission arm 31 is slidably disposed on the chute 14 of the left support frame 1, the head end 322' of the second transmission arm 32 is rotatably disposed on the positioning post 4 'through a right rotation shaft 323', the tail end 321 'of the second transmission arm 32' is slidably disposed on the chute 14a of the right support frame 1a, a transmission tooth is disposed between the head end 312 'of the first transmission arm 31' and the head end 322 'of the second transmission arm 32', and the left rotation shaft 313 'and the right rotation shaft 323' are symmetrically disposed on the left and right sides of the center line O-O between the left row of rollers a and the right row of rollers b. Thus, when the left support frame 1 is driven to move on the sliding support rails (2, 2 a) to gradually separate from the right support frame 1a, the first transmission arm 31 'rotates around the left rotating shaft 313' and simultaneously drives the second transmission arm 32 'to rotate around the right rotating shaft 323' through the transmission teeth, so that the right support frame 1a is pulled to move on the sliding support rails (2, 2 a) to gradually separate from the left support frame 1, and vice versa.

A fourth related structure, which is relatively simple, can be understood with reference to fig. 4. The synchronizer 3 is in a herringbone shape, the head ends of the first and second transmission arms (31, 32) are hinged together through a hinge shaft 33, the hinge shaft 33 is fixedly arranged on the positioning column 4 and is positioned on a central line O-O between the left row of rollers a and the right row of rollers b, the tail end of the first transmission arm 31 is slidably arranged on the left support frame 1, and the tail end of the second transmission arm 32 is slidably arranged on the right support frame 1 a. Therefore, when the first and second transmission arms (31, 32) are synchronously driven by the mobile driver to open and close around the hinge shaft 33, the left and right support frames 1 and 1a can be drawn to relatively synchronously approach or gradually separate.

In a fifth related structure, as shown in fig. 8, the synchronizing device 3a is a parallelogram, the first transmission arm includes a pair of left transmission arms (31, 31 a), the second transmission arm includes a pair of right transmission arms (32, 32 a), the left ends of the pair of left transmission arms (31, 31 a) are rotatably disposed on the left support frame 1, the right ends of the pair of right transmission arms (32, 32 a) are rotatably disposed on the right support frame 1a, the left transmission arm 31 and the right transmission arm 32 are hinged together by a hinge shaft 33, the left transmission arm 31a and the right transmission arm 32a are hinged together by a hinge shaft 33a, and the hinge shafts (33, 33a) are respectively slidably disposed in the sliding groove 401 of the positioning column 4 and are held on the center line O-O between the left column roller a and the right column roller b to move up and down.

As shown in fig. 2 and 9, the portable electronic device further includes a peripheral enclosing plate 8 and a panel 81, the panel 81 is covered and pressed on the peripheral enclosing plate 8, an open portion 810 is reserved on the panel 81, the peripheral enclosing plate 8 and the panel 81 are combined to form an accommodating space 82, the support frame (1, 1 a) is accommodated in the accommodating space 82, and the roller group is exposed to the open portion 810. Therefore, the supporting frames (1, 1 a) are hidden by the peripheral enclosing plate 8 and the panel 81, and the phenomenon that a large amount of scrap iron and dust formed in the cutting process are adhered to the supporting frames (1, 1 a) to affect the use is avoided.

As shown in fig. 3, the device further comprises a pair of guide rails (9, 9 a), and the pair of guide rails (9, 9 a) are respectively arranged at the front and the rear sides of the support frame (1, 1 a). The guide rails (9, 9 a) and the sliding support rails (2, 2 a) are arranged in a staggered manner and connected to the left support frame 1 and the right support frame 1a without interfering with the relative movement between the left support frame 1 and the right support frame 1a, and the guide rails (9, 9 a) are used for guiding the relative movement between the left support frame 1 and the right support frame 1a and enhancing the stability of the relative movement between the left support frame 1 and the right support frame 1 a. Therefore, the sliding support rails (2, 2 a) and the guide rails (9, 9 a) are in a staggered layout relationship, sliding guidance can be provided for the left support frame 1 and the right support frame 1a from different positions, and therefore the relative movement between the left support frame 1 and the right support frame 1a can be guided in a coordinated manner, and the stability of the relative movement between the left support frame 1 and the right support frame 1a can be enhanced.

As for the connection structure between the guide rails (9, 9 a) and the left and right support frames 1, 1a, there are various structures, for example:

a connection structure, guide rail (9, 9 a) one end links firmly on the left branch strut 1, the other end sliding connection of guide rail (9, 9 a) is in on the right branch strut 1a, so guide rail (9, 9 a) rely on the left branch strut 1 obtains the location, can also let simultaneously right branch strut 1a is in the guide effect of guide rail (9, 9 a) is relative under the guide effect the left branch strut 1 slides. Of course, one end of the guide rail (9, 9 a) may be fixed to the right support frame 1a, and the other end of the guide rail (9, 9 a) is slidably connected to the left support frame 1.

In a second connection structure, the guide rails (9, 9 a) are not fixedly connected to the support frames (1, 1 a), and the guide rails (9, 9 a) are respectively connected to the left support frame 1 and the right support frame 1a in a sliding manner. Thus, the left support frame 1 and the right support frame 1a can respectively slide relative to the guide rails (9, 9 a).

In the third connecting structure, at least one end of each guide rail (9 and 9 a) is fixedly connected to the peripheral enclosing plate 8, and the middle parts of the guide rails (9 and 9 a) are respectively connected to the left support frame 1 and the right support frame 1a in a sliding manner. One of the left end and the right end of the guide rail can be fixedly connected with the peripheral enclosing plate, or both the left end and the right end can be fixedly connected with the peripheral enclosing plate.

And in a fourth connection structure, the guide rail 9 is fixedly connected to the positioning column 4, and two ends of the guide rail 9 respectively extending from two sides of the positioning column 4 are respectively connected to the left support frame 1 and the right support frame 1a in a sliding manner. The guide rail 9a is fixedly connected to the positioning column 4a, and two ends of the guide rail 9a extending from two sides of the positioning column 4a are respectively connected to the left support frame 1 and the right support frame 1a in a sliding manner.

As shown in fig. 4, 9 and 12, the roller feeding rack 100 further includes a main driver 5 and a torque transmission shaft 50 in transmission connection with an output shaft of the main driver 5, and the torque transmission shaft 50 extends not only to the position of the left support frame 1 but also to the right support frame 1 a. The left driving roller 10 in the left row of rollers a is in transmission connection with the torque transmission shaft 50 through a left transmission device. The left transmission device comprises a first left gear 6 arranged on the left driving roller rotating shaft 101 and a first transmission gear 61 which is arranged on the torque transmission shaft 50 in a transmission mode and can be in meshing transmission with the first left gear 6. A left auxiliary mounting frame 15 is arranged on the left support frame 1, and the left auxiliary mounting frame 15 is locked on the left support frame 1 through a screw 16. A first left mounting hole 151 and a second left mounting hole 152 are formed in the left auxiliary mounting frame 15, and hole axes of the first left mounting hole 151 and the second left mounting hole 152 are perpendicular to each other. The first left gear 6 is rotatably disposed in the first control hole 151 through a bearing, and the first transmission gear 61 is rotatably disposed in the second control hole 152 through a bearing, so that the first transmission gear 61 is indirectly disposed on the left support frame 1. The right driving roller 11 in the right row of rollers b is in transmission connection with the torque transmission shaft 50 through a right transmission device. The right transmission device comprises a first right gear 6a arranged on the right driving roller rotating shaft 101a and a second transmission gear 61a which is arranged on the torque transmission shaft 50 in a transmission manner and can be meshed with the first right gear 6a for transmission. A right auxiliary mounting frame 15a is arranged on the right support frame 1a, and the right auxiliary mounting frame 15a is locked on the right support frame 1 through a screw 16 a. The right auxiliary mounting frame 15a has a structure the same as the left auxiliary mounting frame 15, and is also provided with a first right mounting hole and a second right mounting hole which are mutually vertical to the hole axis, the first right gear 6a is rotatably arranged in the first right control hole through a bearing, and the second transmission gear 61a is rotatably arranged in the second right control hole through a bearing, so that the second transmission gear 61a is indirectly arranged on the right support frame 1 a. The moment of the moment transmission shaft 50 can be basically and synchronously transmitted to the left driving roller 10 and the right driving roller 11 through the meshing transmission between the first left gear 6 and the first transmission gear 61 and the meshing transmission between the second left gear 6a and the second transmission gear 61a, the left driving roller 10 and the right driving roller 11 have consistent rotation linear speeds and can synchronously give material pushing force from the left side and the right side, and the transmission speed and the transmission precision are greatly improved. On the basis, the length of the material conveyed forwards under the pushing of the left driving roller 10 and the right driving roller 11 can be calculated by arranging an encoder for measuring the angular displacement of the torque transmission shaft 50, the left driving roller 10 or the right driving roller 11.

As shown in fig. 11, adjacent rollers (10, 10a, 10 b) in the left row of rollers a on the left are in synchronous drive connection with each other. Specifically, transmission gears (6 a, 6 b) are respectively arranged on rotating shafts of the rollers (10 a, 10 b), a transmission gear 6e is further arranged on the rotating shaft 101 of the roller 10, and the transmission gear 6e is located above the first left gear 6. Intermediate transmission gears (6 c and 6 d) are respectively arranged between the transmission gears (6 a and 6 b) and the transmission gear 6e, and the gears (6 a, 6b, 6c, 6d and 6 e) are in synchronous meshing transmission connection. The adjacent rollers in the right row of rollers b on the right are also in synchronous transmission connection through gears, the specific structure is the same as that shown in fig. 11, and the discussion is not repeated here. Therefore, all rollers in the left row of rollers a and all rollers in the right row of rollers b are active rollers, pushing force can be applied to the materials, the total pushing resultant force borne by the materials is increased, and the conveying speed is further improved. In addition, all the rollers in the left row of rollers a have consistent rotating linear speed, and all the rollers in the right row of rollers b have consistent rotating linear speed, so that the conveying precision of the left row of rollers a and the right row of rollers b can be further improved. Of course, in other embodiments, only one pair of rollers may be provided as the active rollers.

In order to keep the torque transmission shaft 50 in transmission relation with the left driving roller 10 and the right driving roller 11 when the left support frame 1 and the right support frame 1a move relatively, as further shown in fig. 9 and 10, the main driver 5 is disposed outside the left support frame 1 and the right support frame 1a, and in this embodiment, the main driver 5 is disposed on the peripheral enclosing plate 8. The first transmission gear 61 is slidably sleeved on the torque transmission shaft 50 through a sliding shaft hole on the first transmission gear, and the second transmission gear 61a is slidably sleeved on the torque transmission shaft 50 through a sliding shaft hole on the second transmission gear. The transmission structures between the first transmission gear 61, the second transmission gear 61a and the torque transmission shaft 50 are similar, and the transmission structure between the first transmission gear 61 and the torque transmission shaft 50 is explained as an example. Be provided with axially extended recess 501 on the moment transmission shaft 50, the axially extended length of recess 501 is not less than the axial glide distance of first transmission gear 61 be provided with on the pore wall of the slide shaft hole of first transmission gear 61 can stretch into sand grip 611 in the recess 501, with the help of sand grip 611 with the cooperation between the recess 501, first transmission gear 61 can be in axial slip on the moment transmission shaft 50 can with the moment synchronous transmission of moment transmission shaft 50 first left gear 6 again. Of course, in other embodiments, a flat key structure may be provided between the sliding shaft hole of the first transmission gear 61 and the torque transmission shaft 50. In this way, when the left support frame 1 and the right support frame 1a move relatively, the first transmission gear 61 and the second transmission gear 61a can respectively slide axially on the torque transmission shaft 50 and can respectively transmit the torque of the torque transmission shaft 50 to the left driving roller 10 and the right driving roller 11 synchronously.

Besides, the following transmission scheme can be adopted:

the first transmission scheme is as follows: the main driver 5 is arranged on the left support frame 1, the second transmission gear 61a is sleeved on the torque transmission shaft 50 in a sliding manner through a sliding shaft hole on the second transmission gear, and when the left support frame 1 and the right support frame 1a move relatively, the second transmission gear 61a can axially slide on the torque transmission shaft 50 and can synchronously transmit the torque of the torque transmission shaft 50 to the right driving roller 11. The transmission structure between the second transmission gear 61a and the torque transmission shaft 50 may adopt the structure shown in fig. 9, and the discussion will not be repeated here. In this way, the second transmission gear 61a can transmit the torque of the torque transmission shaft 50 to the right driving roller 11 synchronously through the meshing transmission with the first right gear 6a while moving together with the right supporting frame 1 a.

The second transmission scheme is as follows: the main driver 5 is arranged on the left support frame 1 or outside the left support frame 1 and the right support frame 1a, the torque transmission shaft 50 comprises a left torque transmission shaft and a right torque transmission shaft, the left torque transmission shaft is in transmission connection with the main driver 5, the right torque transmission shaft is sleeved on the left torque transmission shaft in a sliding manner and can synchronously transmit the rotation torque of the left torque transmission shaft, the first transmission gear 61 is in transmission connection with the left torque transmission shaft, and the second transmission gear 61a is in transmission connection with the right torque transmission shaft; when the left support frame 1 and the right support frame 1a move relatively, the left torque transmission shaft and the right torque transmission shaft can slide axially relatively and can respectively and synchronously transmit the torque of the main driver 5 to the left driving roller 10 and the right driving roller 11. The left torque transmission shaft and the right torque transmission shaft are shaft bodies capable of transmitting rotation torque and sliding axially relative to each other, and a transmission structure between the left torque transmission shaft and the right torque transmission shaft may adopt a transmission structure between the first transmission gear 61 and the torque transmission shaft 50 in the above transmission scheme, which is not repeated herein.

Claims (16)

1. The roller feeding frame with the synchronous moving structure comprises a supporting frame and a roller group rotationally arranged on the supporting frame, wherein the roller group comprises a left roller row and a right roller row which are arranged on the left and the right, and a material space through which materials can pass is arranged between the left roller row and the right roller row; the roller train is characterized in that the supporting frame comprises a left supporting frame and a right supporting frame which are arranged on the left and the right respectively, a left row of rollers in the roller train are respectively and rotatably arranged on the left supporting frame, and a right row of rollers are respectively and rotatably arranged on the right supporting frame; the left support frame and the right support frame are movably arranged on the sliding support rails; the positioning column is fixedly connected to the bottom frame and is positioned between the left support frame and the right support frame; still be provided with synchronizer between left branch strut, the right branch strut, synchronizer is including first, second transmission arm, first, second transmission arm not only be associated with simultaneously the reference column but also be associated with respectively the left branch strut or the right branch strut, the reference column with synchronizer cooperation not only is used for guaranteeing that left branch strut, right branch strut are synchronous relatively and are close to or gradually leave, is used for confirming when adjusting the material interval the position of central line keeps unchangeable between left side row of gyro wheel and the right side row of gyro wheel.

2. The roller feeding frame according to claim 1, wherein the outer circumferential surfaces of the rollers of the left and right rows of rollers are respectively provided with a left groove and a right groove for clamping materials, and the left groove and the right groove are arranged in a left-right matching manner.

3. The roller feeding rack according to claim 1, further comprising a moving driver for driving the left and right supporting frames to approach or separate from each other relatively synchronously.

4. The roller feeding rack according to claim 3, further comprising a pair of positioning posts and a pair of synchronizing devices, wherein the pair of positioning posts and the pair of synchronizing devices are respectively disposed on the front side and the rear side of the bottom frame, an output shaft of the moving driver is connected to the right supporting frame, and the moving driver is used for driving the right supporting frame to move and drawing the left supporting frame to move by means of the positioning posts and the synchronizing devices in a matching manner.

5. The roller feeder frame according to claim 1, further comprising a pair of guide rails, wherein the pair of guide rails and the sliding support rail are arranged on the support frame in a staggered manner; one end of the guide rail is fixedly connected with the left support frame or the right support frame, the other end of the guide rail is connected with the other support frame in a sliding mode, or the guide rail is fixedly connected with the positioning column, and two ends of the guide rail extending from two sides of the positioning column are respectively connected with the left support frame and the right support frame in a sliding mode.

6. The roller feeder according to claim 1, further comprising a peripheral enclosing plate and a panel, wherein the panel is covered and pressed on the peripheral enclosing plate, an opening part is reserved on the panel, the peripheral enclosing plate and the panel are combined to form a containing space, the support frame is contained in the containing space, and the roller group is exposed to the opening part.

7. The roller feeding frame according to any one of claims 1 to 6, further comprising a main driver and a torque transmission shaft in transmission connection with an output shaft of the main driver, wherein the torque transmission shaft extends to the position of the left support frame and also extends to the right support frame; at least one pair of rollers are driving rollers and comprise a left driving roller and a right driving roller, one of the left driving rollers is in transmission connection with the torque transmission shaft through a left transmission device, and the other one of the right driving rollers is in transmission connection with the torque transmission shaft through a right transmission device.

8. The roller feeding frame according to claim 7, wherein the left transmission device comprises a first left gear arranged on the left driving roller rotating shaft and a first transmission gear which is arranged on the torque transmission shaft and can be in meshing transmission with the first left gear, the right transmission device comprises a first right gear arranged on the right driving roller rotating shaft and a second transmission gear which is arranged on the torque transmission shaft and can be in meshing transmission with the first right gear, the first transmission gear is arranged on the left supporting frame, and the second transmission gear is arranged on the right supporting frame.

9. The roller feeder frame according to claim 7, wherein all rollers are active rollers, and adjacent rollers in the left row of rollers on the left side are in synchronous transmission connection with each other, and adjacent rollers in the right row of rollers on the right side are in synchronous transmission connection with each other.

10. The roller feeding frame according to claim 9, wherein adjacent left rollers in the left rollers are in synchronous gear engagement transmission connection, and adjacent right rollers in the right rollers are in synchronous gear engagement transmission connection.

11. The pipe cutting machine using the roller feeding frame of any one of claims 1 to 10, comprising the roller feeding frame and further comprising a laser cutting assembly, wherein the laser cutting assembly comprises a laser head for cutting materials conveyed by the roller feeding frame.

12. The pipe cutting machine of claim 11, further comprising a clamping device, the roller feeder carriage for providing the received processed pipe to the clamping device; the clamping device is used for clamping the materials conveyed by the roller feeding frame, and the laser head is also used for cutting the materials when the clamping device clamps the materials.

13. The pipe cutting machine of claim 12, wherein the clamping device is rotatable, and the roller feeder carriage is further configured to be releasable to machine the pipe when the clamping device is rotated; the clamping device is also used for clamping the materials delivered by the roller feeding frame and driving the materials to rotate during cutting; the laser head is also used for cutting off the materials when the clamping device drives the materials to rotate.

14. The pipe cutting machine according to claim 12 or 13, wherein a wire length metering device is provided on the roller feeder carriage or between the roller feeder carriage and the clamping device.

15. The pipe cutting machine of claim 11, 12 or 13, further comprising a front feeder positioned in front of said roller feeder, said front feeder being configured to provide a processed pipe to said roller feeder.

16. The pipe cutting machine of claim 15, further comprising a feed positioning device for positioning material delivered from said forward feeder rack and initially reaching said roller feeder rack.

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