Disclosure of Invention
In view of the defects existing in the prior art, the invention innovatively provides a non-woven bag making machine capable of realizing high-speed bag body forming.
The non-woven bag making machine comprises a frame and a bag body forming device, wherein the bag body forming device comprises a forming die and a heat sealing mechanism, and is characterized in that: the heat sealing mechanism comprises a transverse heat seal head and a longitudinal heat seal head, wherein the transverse heat seal head and the longitudinal heat seal head form an L-shaped heat seal head which enables an L-shaped heat sealing line to be reserved at the edge of the side face of the bag body.
The transverse heat seal head and the longitudinal heat seal head are driven by the driving mechanism to realize transverse movement and front-back movement.
The driving mechanism comprises a transverse driving assembly and a front-back driving assembly, the transverse driving assembly comprises a guide plate and a transverse power source, a transverse guide rail is arranged on the guide plate, the transverse heat seal head and the longitudinal heat seal head are arranged on a heat seal seat, the heat seal seat can be transversely movably arranged on the transverse guide rail, and the heat seal seat is in transmission connection with the transverse power source.
The front-back driving assembly comprises a bottom plate and a heat sealing power source, a front guide rail and a back guide rail are arranged on the bottom plate, the guide plate can be arranged on the front guide rail and the back guide rail in a front-back movable mode, and the guide plate is in transmission connection with the heat sealing power source.
The pushing side of the longitudinal thermal seal head is provided with a pushing plate for pushing materials.
The machine frame is also provided with a transverse edge cutting device, the transverse edge cutting device comprises transverse cutters and a panel, the panel is provided with edge cutting slots, two transverse cutters are arranged, the two transverse cutters are arranged on a cutter holder in a cutter face-to-cutter face mode, and the cutter holder is connected with an edge cutting power source for driving the transverse cutters to penetrate the edge cutting slots in a transmission mode.
The transverse cutter and the cutter holder are arranged below the panel, and a material pressing assembly is arranged above the panel.
The pressing component is an indentation component, and the indentation component comprises a pressing wheel and an indentation power source for driving the pressing wheel to move on the panel.
The machine frame is also provided with a longitudinal edge cutting device, the longitudinal edge cutting device comprises two longitudinal cutters, the two longitudinal cutters are staggered in the longitudinal direction, the two longitudinal cutters are driven by a longitudinal power source to realize longitudinal movement, and the two longitudinal cutters are driven by a lifting power source to realize up-and-down movement.
And a discharging platform is arranged below the longitudinal cutters, and cutting gaps for cutting cloth are arranged at positions, corresponding to the two longitudinal cutters, on the discharging platform.
The cutting gap is formed by clamping two ends of an adjusting belt between a fixed plate and an adjusting plate, the adjusting belt is wound on two adjusting rollers, the fixed plate is connected to the adjusting plate, and the adjusting plate can be transversely moved and adjusted.
According to the non-woven bag making machine provided by the invention, the transverse heat seal heads and the longitudinal heat seal heads which are arranged in an L shape are transversely moved, so that a side inserting mechanism at one side can be replaced to complete side inserting, and then the heat sealing of the overlapped parts of the left side surface and the right side surface is completed through the forward movement of the transverse heat seal heads and the longitudinal heat seal heads. Because the heat sealing mechanism is directly used as the side inserting mechanism, the avoiding problem is not needed to be considered, so that the distance from the heat sealing mechanism to the heat sealing mould is shortened to the greatest extent, and the forming speed is improved.
Description of the embodiments
As shown in fig. 1 and 2, the non-woven fabric bag making machine of the present invention comprises a frame and a bag body forming device, wherein the bag body forming device comprises a forming die and a heat sealing mechanism 1, fig. 1 and 2 only show the heat sealing mechanism 1, the forming die is not shown, the forming die is the same as the existing forming die in forming principle, the detailed description is omitted here, the difference between the forming die and the existing bag body forming device is the heat sealing mechanism, the existing heat sealing mechanism is already described in detail in the background technology, and the heat sealing mechanism of the present invention is specifically described below.
The heat sealing mechanism 1 comprises a transverse heat seal head 10 and a longitudinal heat seal head 11 (both are ultrasonic heat seal heads), wherein the transverse heat seal head 10 and the longitudinal heat seal head 11 form an L-shaped heat seal head (the transverse heat seal head 10 can be formed by one heat seal head or a plurality of heat seal heads which are transversely arranged, the longitudinal heat seal head 11 can be formed by one heat seal head or a plurality of heat seal heads which are longitudinally arranged, the transverse heat seal head 10 and the longitudinal heat seal head 11 can be connected or separated), and the L-shaped heat seal line E of the side edge of the three-dimensional bag 8 shown in fig. 12 is formed by the L-shaped heat seal head heat seal formed by the transverse heat seal head 10 and the longitudinal heat seal head 11.
The specific heat sealing principle is as follows: after the molding die supports the cloth and descends, as shown in fig. 11, the left and right main faces 81 are erected, the bottom flanges 85 of the bottom faces 84 are erected, then the narrow flange 83 on one main face 81 is inserted inward by the side inserting mechanism on one side face, the wide flange 82 on the other main face 81 is inserted inward by the side inserting mechanism on the other side face, the wide flange 82 and the narrow flange 83 are overlapped, then the transverse heat seal head 10 and the longitudinal heat seal head 11 are driven by the driving mechanism to move forward, and the L-shaped heat seal line E is left on the side edge of the three-dimensional bag 8.
By the heat-sealing work described above, the whole bags each having the L-shaped heat-sealing line are manufactured, i.e., the problem of heat-sealing formation of the L-shaped bags is solved. However, the heat sealing mechanism with such a structure has the same action principle as the prior art, can only realize forward and backward movement, and has the same inefficiency as the prior art.
In order to solve the efficiency problem, the invention not only enables the transverse heat seal head 10 and the longitudinal heat seal head 11 to move back and forth, but also enables the transverse heat seal head 10 and the longitudinal heat seal head 11 to move transversely by driving the driving mechanism. The working principle is as follows: the left main surface 81 and the right main surface 81 are erected, the bottom flange 85 of the bottom surface 84 is also erected, then the side inserting mechanism positioned on one side of the side face inserts the narrow flange 83 on one main surface 81 inwards, the transverse heat seal head 10 and the longitudinal heat seal head 11 move transversely, the wide flange 82 on the other main surface 81 inserts inwards, when the transverse heat seal head 10 and the longitudinal heat seal head 11 move transversely to a set position (even if the wide flange 82 and the narrow flange 83 overlap), the transverse heat seal head 10 and the longitudinal heat seal head 11 move forwards again, so that the overlapping part of the wide flange 82 and the narrow flange 83 is heat-sealed by the longitudinal heat seal head 11, and the overlapping part of the wide flange 82 and the bottom flange 85 is heat-sealed by the transverse heat seal head 10; both sides of the bag are heat sealed in this way at the same time, thereby completing the formation of one three-dimensional bag 8. Because the heat sealing mechanism is directly used as the side inserting mechanism in the technical scheme of the invention, avoiding is not needed to be considered, the distance from the transverse heat seal head 10 and the longitudinal heat seal head 11 to the heat sealing mould can be shortened to the greatest extent, and the shorter the distance is, the shorter the single heat sealing cycle time is, and the higher the bag making efficiency is. In addition, because the heat sealing head can realize transverse movement, the heat sealing head with the structure has the other advantage of being capable of conveniently adjusting the heat sealing position and only adjusting the travel of the transverse movement, thereby meeting the requirements of manufacturing bags with different sizes.
As described above, the transverse heat seal head 10 and the longitudinal heat seal head 11 need to move transversely and back and forth to accomplish the heat sealing operation, and the movement is driven by the driving mechanism. The driving mechanism comprises a transverse driving component and a front-back driving component. The structure and working principle of the transverse driving component and the front-rear driving component are specifically described below.
As shown in fig. 1, the transverse driving assembly comprises a guide plate 13 and a transverse power source 19 (the power sources of the invention comprise motors, air cylinders and the like), wherein the guide plate 13 is provided with a transverse guide rail 14, the transverse heat seal head 10 and the longitudinal heat seal head 11 are both arranged on a heat seal seat 12, the heat seal seat 12 is arranged on the transverse guide rail 14 in a transversely movable manner, and the heat seal seat 12 is in transmission connection with the transverse power source 19. The heat seal seat 12 can carry the transverse heat seal head 10 and the longitudinal heat seal head 11 to realize transverse movement (X-axis direction in figure 1) by the drive of the transverse power source 19; the front and rear driving assembly comprises a bottom plate 15 and a heat sealing power source 17, a front guide rail 16 and a rear guide rail 16 (guide rails arranged along the Z-axis direction) are arranged on the bottom plate 15, a guide plate 13 is arranged on the front guide rail 16 in a front and rear movable mode, and the guide plate 13 is in transmission connection with the heat sealing power source 17. By driving the heat sealing power source 17, the guide plate 13 can carry the transverse heat seal head 10 and the longitudinal heat seal head 11 to move back and forth. It should be noted that, the heat sealing power source 17 of the present invention pulls the heat sealing seat 12 to move back and forth through the eccentric wheel 171 driving connection arm 172, and the distance of the back and forth movement is shortened, so that the output moment of the eccentric wheel 171 is larger, the heat sealing acting force is larger, and the heat sealing effect is better.
The heat sealing mechanism can realize transverse movement as side insertion, but the heat sealing mechanism with the structure can also realize the purpose of transversely adjusting the position without side insertion, so that the heat sealing mechanism can adapt to the manufacture of bags with different sizes, and the side insertion is completed by another side insertion mechanism.
In order to prevent the longitudinal heat seal head 11 from affecting the cloth when the heat seal mechanism moves laterally as a side insert, the present invention is provided with a push plate 18 for pushing the cloth on the pushing side of the longitudinal heat seal head 11 as shown in fig. 2. When the heat sealing mechanism moves transversely, the push plate 18 acts on the wide folded edge 82, so that the cloth is prevented from being influenced by the heat sealing head.
The individual bag material of the present invention may be cut by an independent machine or manually and then fed into a forming station. However, in order to realize full mechanization, the invention also provides a cutting mechanism for cutting cloth. As shown in fig. 9, a roll of fabric is cut from the fabric by the cutting edge mechanism under the traction of the traction mechanism, and the individual bags of fabric are cut from the fabric to form individual fabric as shown in fig. 10, after which the individual fabric enters the forming station to complete the forming operation as described above. Because of the special nature of the bag, the cutting mode is different from the prior art: as shown in fig. 9, a cloth of a single bag as shown in fig. 10 is cut by cutting a lateral side, that is, along the a side in fig. 9, and then cutting a longitudinal side, that is, along the B side in fig. 9, and a cloth of a single bag as shown in fig. 10 is cut by cutting the lateral side and the longitudinal side, and the cloth between the a side and the B side is cut as a waste.
The structure and working principle of the transverse edge cutting device and the longitudinal edge cutting device are specifically described below.
As shown in fig. 3-5, the transverse edge cutting device of the non-woven bag making machine comprises a transverse cutter 22 and a panel 21, wherein the panel 21 is provided with edge cutting slots 210, two transverse cutters 22 are arranged, the two transverse cutters 22 are arranged on a cutter holder 23 in a cutter surface-to-cutter surface mode, and the cutter holder 23 is in transmission connection with an edge cutting power source 25 for driving the transverse cutters 22 to penetrate through the edge cutting slots 210. The cloth is placed on the panel 21 and the cutting edge power source 25 drives the tool holder 23 to move so that the two transverse cutters 22 pass through the cutting edge slots 210 of the panel 21 and simultaneously pass through the cloth, leaving two transverse parallel edges (edge a in fig. 9) on the cloth.
The two transverse cutters 22 are respectively arranged on two cutter holders 23, the cutter holders 23 are horizontally and adjustably arranged on an adjusting bracket 24, and the adjusting bracket 24 is in transmission connection with a cutting edge power source 25. There are many ways of adjusting the level, one is given in particular below: the adjusting bracket 24 is provided with a horizontal adjusting slot 240, the tool apron 23 is provided with an adjusting part 230, the adjusting part 230 is arranged in the adjusting slot 240 in a matching way, and the outer end of the adjusting part 230 is connected with a limiting part 28. When the adjustment is needed, the adjustment part 230 is moved in the adjustment slot 240, and the position of the transverse cutter 22 is fixed by the limiting part 28 after the position of the transverse cutter is determined.
The transverse cutter 22 can be located above the panel 21 or below the panel 21, the former does not need any auxiliary facilities when cutting, the latter needs to be provided with a pressing assembly above the panel 21, and the transverse cutter can cut from bottom to top by the pressure of the pressing assembly. In the process of manufacturing the bag, there is an indentation process, which can press an indentation on the cloth (the bag is folded along the indentations, which is called a forming line, namely, line C in fig. 12), so that the subsequent forming work is convenient, if the indentation process and the transverse edge cutting process are integrated together, the indentation process replaces the action of the material pressing component (the indentation process can provide a pressure to the cloth), so that the structure is simplified, the cost is reduced, and the production efficiency is greatly improved. For this purpose, the press assembly of the present invention is an indentation assembly including a press wheel 26 and an indentation power source 27 for driving the press wheel 26 to move on the panel 21. By driving the indentation power source 27, the pressing wheel 26 performs indentation on the cloth, meanwhile, the transverse cutter 22 can move from bottom to top to cut edges of the cloth under the condition that the cloth receives pressure, and the indentation work and the edge cutting work are performed simultaneously, so that the production efficiency is greatly improved.
The indentation assembly of the invention comprises three pressing wheels 26 which are arranged side by side, wherein the middle pressing wheel is used for indentation of a folding line (namely a line D in fig. 12) on the side surface of the bag body, the indentation is convenient for flattening and boxing after the bag body is formed, and the pressing wheels on the two sides are used for indentation of a forming line (namely a line C in fig. 12) on the outline of the bag body, so that subsequent forming work is convenient. The transverse cutter 22 can rapidly cut two transverse trimming edges on cloth, and on the basis, three pressing wheels arranged side by side are effectively integrated, and follow-up forming and finishing work is facilitated through indentation of the three pressing wheels 26, so that the manufacturing efficiency of the non-woven fabric three-dimensional bag is remarkably improved, and a foundation is laid for high-speed bag making.
As shown in fig. 6-8, the longitudinal edge cutting mechanism of the non-woven bag making machine comprises two longitudinal cutters 31, wherein the two longitudinal cutters 31 are staggered in the longitudinal direction, i.e. the two longitudinal cutters 31 correspondingly cut the left and right longitudinal edges B in fig. 10. During operation, the cloth after being transversely cut is conveyed (namely the cutting of the side A is finished), the two longitudinal cutters 31 are driven by the lifting power source 38 to move downwards, so that the two longitudinal cutters 31 are inserted into the cloth, then the two longitudinal cutters 31 are driven by the longitudinal power source 37 to realize longitudinal movement, and finally the trimming of the two longitudinal sides B is finished. The specific transmission structure is that two longitudinal cutters 31 are correspondingly arranged on two lifting power sources 38, the two lifting power sources 38 are correspondingly arranged on two longitudinally arranged synchronous belts 32, and the synchronous belts 32 are in transmission connection with a longitudinal power source 37. The lifting power source 38 can drive the longitudinal cutter 31 to move up and down, and the longitudinal power source 37 drives the lifting power source 38 to move longitudinally together with the longitudinal cutter 31 through the synchronous belt 32.
A discharging platform 39 is arranged below the longitudinal cutters 31, cloth is placed on the discharging platform 39, and in order to protect the longitudinal cutters 31 and realize better cutting, cutting gaps 310 for cutting the cloth are arranged on the discharging platform 39 at positions corresponding to the two longitudinal cutters 31. During cutting, two longitudinal cutters 31 are vertically inserted into cloth and enter the cutting gap 310 by driving of the lifting power source 38, and then the longitudinal cutters 31 finish longitudinal trimming along the cutting gap 310 by driving of the longitudinal power source.
In order to be suitable for the manufacture of bags of different sizes, i.e. for cutting cloth of different sizes, one of the cutting gaps 310 is movable in the lateral direction, i.e. the width between the left and right longitudinal edges B is adjusted. There are various structures capable of adjusting the cutting gap 310, for example, the cutting gap 310 is located on a bar, and the position of the cutting gap 310 can be adjusted by adjusting the position of the bar, however, considering the structure of the platform, the operation is complicated; in order to achieve convenient adjustment, the cutting gap 310 of the invention is formed by clamping two ends of an adjusting belt 33 between the fixed plate 35 and the adjusting plate 34, the adjusting belt 33 is wound on two adjusting rollers to form a part of the discharging platform 39, and the fixed plate 35 is connected to the adjusting plate 34, so that the fixed plate 35 and the adjusting plate 34 move together by transversely moving the adjusting plate 34, and the cutting gap 310 formed between the fixed plate 35 and the adjusting plate 34 at two ends of the adjusting belt 33 can achieve position adjustment, thus the adjustment is convenient without affecting the discharging platform 39. In addition, in order to make the adjustment plate 34 move more easily, the present invention slidably mounts the adjustment plate 34 on the adjustment rail 312 through the adjustment slider 311. Thus, the position of the cutting gap 310 can be adjusted by only moving the adjusting slider 311 on the adjusting rail 312. When the position is adjusted, the locking hand wheel 36 is locked.
According to the non-woven fabric bag making machine provided by the invention, the mechanical and electrical integration degree is high, the mechanization is realized in the whole process from feeding to bag discharging, and based on the production of the L-shaped non-woven fabric bag, compared with the existing equipment, the bag making machine can realize faster molding, and the produced L-shaped non-woven fabric three-dimensional bag is a future development trend of the non-woven fabric bag due to attractive bag surface and more printed advertising layout.