CN110713079A - Automatic winding device for glass fiber chopped strand mats - Google Patents
Automatic winding device for glass fiber chopped strand mats Download PDFInfo
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- CN110713079A CN110713079A CN201910889653.2A CN201910889653A CN110713079A CN 110713079 A CN110713079 A CN 110713079A CN 201910889653 A CN201910889653 A CN 201910889653A CN 110713079 A CN110713079 A CN 110713079A
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- winding
- chopped strand
- driving
- moving
- strand mat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
- B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
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Abstract
An automatic glass chopped strand mat winding device, comprising: the rack is provided with a horizontal supporting platform, and at least one pair of rack guide rails parallel to each other is erected on the supporting platform; the front-back moving mechanism comprises a driving part for providing front-back moving driving force and at least one pair of moving frames for supporting the winding mechanism, and is used for converting the circumferential rotating motion of the output part into linear reciprocating motion of the moving frames moving along the axial direction of the rack guide rail; the winding mechanism comprises a winding part for automatically winding and a pressing part for pressing the glass fiber chopped strand mat; and the control mechanism is arranged on the rack, and a signal transmission port of the control mechanism is respectively in signal connection with the control end of the driving part and the control end of the driving assembly and is used for controlling the front-back moving mechanism and the winding mechanism to work so as to realize the automatic winding of the glass fiber chopped strand mat. The invention has the beneficial effects that: the automatic winding machine has the advantages of strong adaptability, high automation degree and wide application range, and can realize the automatic winding action of the glass fiber chopped strand mat.
Description
Technical Field
The invention relates to an automatic winding device for a glass chopped strand mat, which is suitable for the field of electromechanical automatic control in the production of the glass chopped strand mat.
Background
An important link is provided in the production process of the glass chopped strand mat: when the glass chopped strand mats are fully rolled, the glass chopped strand mats are cut off in a full width mode by the transverse cutter device, and then the rolled products need to be wound on paper tubes of winding shafts, which are called reeling in the industry. This process has previously been done manually, but has presented a number of problems. This problem includes: 1) manual scrolling requires at least 2 simultaneous operations; 2) the manual winding is easy to be loosened and inclined, so that the problems of difficult packaging of products, uneven end surfaces of the products and the like are caused; 3) manual winding can only be carried out at low speed, which affects the production efficiency; 4) the manual winding is unsafe, and the rotating winding shaft can damage fingers and arms.
Disclosure of Invention
In order to solve the problems of product quality, personnel safety and production efficiency in the manual winding link of the glass fiber chopped strand mats, the invention provides the automatic winding device of the glass fiber chopped strand mats, which has strong adaptability, high automation degree and wide application range.
The invention discloses an automatic winding device for a glass chopped strand mat, which is characterized by comprising the following components in parts by weight:
the rack is provided with a horizontal supporting platform, and at least one pair of rack guide rails parallel to each other is erected on the supporting platform;
the front-back moving mechanism comprises a driving part for providing front-back moving driving force and at least one pair of moving frames for supporting the winding mechanism, the bottom of each moving frame is connected with the rack guide rail in a sliding mode, and the winding mechanism is mounted on the upper frame; the movable frames are connected through a transmission shaft, so that the operation of the movable frames on the rack guide rail is kept synchronous; the driving part is arranged on one set of the moving frames, and the output part of the driving part is meshed with the corresponding rack guide rail and is used for converting the circumferential rotation motion of the output part into the linear reciprocating motion of the moving frames moving along the axial direction of the rack guide rail;
the winding mechanism comprises a winding part for automatically winding and a pressing part for pressing the glass fiber chopped strand mat, the winding part is arranged on the moving part, the winding part is provided with an arc-shaped track for the glass fiber chopped strand mat to move, and the gap orientation of the arc-shaped track of the winding part is kept consistent; the pressing part is laid on the surface of the arc-shaped track and fixedly connected with the driving assembly of the upper rolling part, so that the pressing part can slide along the surface of the arc-shaped track under the driving of the driving assembly;
and the control mechanism is arranged on the rack, and a signal transmission port of the control mechanism is respectively in signal connection with the control end of the driving part and the control end of the driving assembly and is used for controlling the front-back moving mechanism and the winding mechanism to work so as to realize the automatic winding of the glass fiber chopped strand mat.
The driving part comprises a driving motor and a connecting rod device, the driving motor is arranged on one set of the moving frame, and an output shaft of the driving motor is meshed with the rack guide rail on the same side through the connecting rod device.
The upper rolling part comprises at least one pair of curve plates and a set of driving assembly, each moving frame is provided with one curve plate, and gaps of the arc-shaped tracks on the curve plates are in the same direction; the drive assembly comprises an upward rolling motor, a plurality of gears and an annular chain, the curve plates are oppositely arranged on two sides of the upward rolling part, the upward rolling motor is fixedly arranged on one curve plate, the plurality of gears are distributed on the curve plate, the annular chain is sleeved among the gears, and the teeth of the gears are kept to be meshed with the annular chain; the output shaft of the winding motor is connected with one of the gears serving as the driving wheel, so that the annular chain serving as a moving member moves along the circumferential direction of the arc-shaped track.
The curvature of the arc-shaped track is gradually reduced from bottom to top.
The pressing part is an upward rolling pressing plate erected on the arc-shaped track of the curve plate, and the end part of the upward rolling pressing plate is fixedly connected with an annular chain arranged along the circumferential direction of the arc-shaped track.
The rack guide rail structure is characterized by further comprising a limiting device, wherein the limiting device is a pair of limiting screws, and the limiting screws are respectively arranged at two ends of the rack guide rail and used for limiting the back-and-forth movement stroke of the back-and-forth movement mechanism.
The glass chopped strand mat reeling mechanism is suitable for 80g/m3-900g/m3The applicable maximum product width of the chopped strand mat of the glass fiber of the emulsion and the powder is 3300mm, and the chopped strand mat products of all specifications are covered. The winding speed of the winding machine can be up to 40m/min, the winding machine can be widely applied to common 2-axis and 3-axis winding mechanisms, and the application range is wide.
And after the glass fiber chopped strand mats are fully rolled, the glass fiber chopped strand mats are cut off in a full width mode by the transverse cutter device. The glass fiber chopped strand mat is pulled by a traction device on the production line to continuously move forward and enter the device for automatic reeling, and the glass fiber chopped strand mat is reeled by a reeling device after reeling.
Considering the influence of the coiling device and the press roll, the automatic coiling device mainly completes coiling the glass fiber chopped strand mat by two actions, namely forward and backward movement and forward and backward arc rotation. The operation can be automatic or manual.
The front-back movement and the forward-backward arc rotation enable the device to successfully avoid the process action of the winding device, enable the device to move in place, and wait for signals to carry out arc rotation winding on the felt. Generally, after a control mechanism calculates that a new roll after the felt is cut off moves to a certain position according to the running speed of the felt, the device winds the roll felt on a paper tube on a winding shaft through the anticlockwise arc-shaped rotation of a pressing plate.
Currently, the whole glass chopped strand mat is generally cut into 2 rolls or 3 rolls to meet the requirements of customers, and the manual reeling process needs at least 2 staff to complete.
The invention has the beneficial effects that: 1) the winding action can be automatically completed by the device, and 2 employees in the winding area can be reduced to 1 employee;
2) the device is accurate in positioning and standard in action, solves the problems of loose rolling, oblique rolling and the like in manual rolling, and improves the rolling quality of products;
3) the device can meet the winding speed of 40m/min at most, and the manual energy can only reach the winding speed of 15m/min at most;
4) the device has realized full-automatic roll-up, has solved artifical roll-up in-process, and the staff only works the safety risk that probably exists with machinery jointly.
Drawings
FIG. 1 is a right-hand schematic view of the present invention;
FIG. 2a is a front view of the present invention;
FIG. 2B is a cross-sectional view B-B of FIG. 2 a;
FIG. 3 is a top schematic view of the present invention;
FIG. 4 is a schematic view of the position of the roll-up platen of the present invention;
FIG. 5 is a movement diagram of the winding mechanism of the present invention (M is the winding ready position; N is the full-winding exit position);
fig. 6 is a schematic view of the control mechanism of the present invention.
(Note: the dotted line in the figure is not the structure of the device)
Detailed Description
The invention is further described below with reference to the accompanying drawings.
With reference to the accompanying drawings:
example 1
The invention relates to an automatic winding device for a glass chopped strand mat, which comprises:
a frame 01 having a horizontal support platform, on which a pair of rack guide rails 12 are mounted in parallel;
the front-back moving mechanism 02 comprises a driving part for providing front-back moving driving force and a pair of moving frames for supporting the reeling mechanism, the bottom of each moving frame is connected with the rack guide rail 12 in a sliding manner, and the reeling mechanism is arranged on the upper frame; the moving frames are connected through a transmission shaft 11, so that the operation of the moving frames on the rack guide rail 12 is kept synchronous; the driving part is arranged on one set of the moving frames, and the output part of the driving part is meshed with the corresponding rack guide rail 12 and is used for converting the circumferential rotation motion of the output part into the linear reciprocating motion of the moving frames moving along the axial direction of the rack guide rail 12;
the winding mechanism 03 comprises a winding part for automatically winding and a pressing part for pressing the glass fiber chopped strand mat, the winding part is mounted on the moving part, the winding part is provided with an arc-shaped rail 06 for the glass fiber chopped strand mat to move, and the notches of the arc-shaped rail 06 of the winding part are kept in the same direction; the pressing part is laid on the surface of the arc-shaped track 06 and fixedly connected with the driving assembly of the upper rolling part, so that the pressing part can slide along the surface of the arc-shaped track 06 under the driving of the driving assembly;
and the control mechanism 07 is arranged on the rack 01 and is placed in the control box, and a signal transmission port of the control mechanism is in signal connection with a control end of the driving part and a control end of the driving assembly respectively and is used for controlling the front-back moving mechanism and the winding mechanism to work so as to realize automatic winding of the glass fiber chopped strand mat.
In fig. 6, the numerals indicate the number of the terminal, which is also marked on the terminal block of the control mechanism, and is a standard drawing of the circuit diagram.
The driving part comprises a driving motor 04 and a link device 10, the driving motor 04 is mounted on one set of moving frame, and the output shaft of the driving motor 04 is meshed with the rack guide rail 12 on the same side through the link device 10.
The coiling part comprises a pair of curve plates and a set of driving components, each moving frame is provided with one curve plate, and gaps of the arc-shaped rails 06 on the curve plates are in the same direction; the driving assembly comprises an upper coiling motor 05, a plurality of gears and an annular chain 16, the curved plates are oppositely arranged on two sides of the upper coiling part, the upper coiling motor 05 is fixedly arranged on one curved plate, a plurality of gears are distributed on each curved plate, the annular chain 16 is sleeved among the gears, and the teeth of the gears are kept meshed with the annular chain 16; the output shaft of the winding motor 05 is connected with one of the gears serving as the driving wheel, so that the annular chain serving as the moving member moves along the circumferential direction of the arc-shaped track.
The curvature of the arc-shaped track 06 is gradually reduced from bottom to top.
The pressing part is an upward rolling pressing plate 14 which is erected on the arc-shaped track of the curve plate and is a long thin plate, the end part of the upward rolling pressing plate 14 is fixedly connected with an annular chain 16 which is arranged along the circumferential direction of the arc-shaped track 06 through a sliding block 141, the sliding block 141 is fixed on the annular chain 16, and the upward rolling pressing plate 14 is fixed on the sliding block 141. After the winding action is started, firstly 5 gear wheels rotate to drive the annular chain 16 to move, and the slide block 141 fixed on the annular chain 16 drives the winding pressing plate 14 to move along the arc-shaped track of the curve plate to complete the winding action.
The limiting device is a pair of limiting screws 09, and the limiting screws 09 are respectively arranged at two ends of the rack guide rail 12 and used for limiting the back-and-forth movement stroke of the back-and-forth movement mechanism 02.
Example 2
The invention relates to an automatic glass chopped strand mat winding device which comprises a rack 01, a front-back moving mechanism 02, a winding mechanism 03 and a control mechanism 07, wherein a horizontal supporting platform is arranged at the upper part of the rack 01, a pair of rack guide rails 12 which are parallel to each other is laid on the supporting platform of the rack 01, and the front-back moving mechanism 02 is arranged on the supporting platform of the rack 01 and can move back and forth along the axial direction of the rack guide rails 12.
The front-back moving mechanism 02 comprises a driving part for providing front-back moving driving force and a pair of moving frames for supporting the winding mechanism, wherein a driving motor 04 serving as the driving part is installed on the side surface of one moving frame, the driving motor 04 converts the driving force of the motor into linear motion of the front-back moving mechanism 02 through a connecting rod device 10, and in order to prevent abrasion caused by direct connection between the driving motor and a gear, the connecting rod device is a polyurethane connector and plays a role in buffering and reduces abrasion between a motor shaft and the gear; the middle parts of the moving frames are mutually connected through a transmission shaft 11, so that the moving frames keep the synchronism in the operation of the rack guide rail 12; and the front and back positions of the frame 01 are provided with limit screws 09, and when the front and back moving mechanism 02 exceeds the moving range, the front and back moving stroke is limited to play a safety protection role.
The inside of the winding mechanism 03 is provided with 5 rotating gears which are respectively named as a first gear 17, a second gear 19, a third gear 18, a fourth gear 20 and a fifth gear 21 in sequence, the first gear 17 is a driving gear and is connected with an output shaft of the winding motor 05, the rest four gears are driven gears, the five gears are connected through an annular chain 16, teeth of the five gears are all meshed with the annular chain, the annular chain between the first gear 17 and the fifth gear 21 is arranged along the edge of the arc-shaped guide rail of the curve plate, the driving gear is used for driving the annular chain 16 to transmit, and the driven gears are used for supporting the annular chain 16 to enable the annular chain 16 to move along the arc-shaped guide rail of the curve plate; the annular chain 16 rotates, and the annular chain 16 positioned at a specific position of the arc-shaped track 06 of the curve plate is fixedly connected with the upper rolling pressure plate 14, as shown in fig. 4; the upper coiling pressure plate 14 is used for compacting the product, so that the coiling is more compact; the coiling motor 05 drives the first gear 17 at the driving wheel mounting position of the curve plate to rotate, and drives the annular chain 16 to rotate circumferentially, so that the coiling pressure plate 14 makes arc motion to complete the coiling action. The 5 groups of gears mainly keep the shape of the chain close to that of the curved plate groove, so that the upper rolling plate fixed on the chain stably runs along the route of the curved plate groove. If 5 groups of gears are not arranged, the winding action cannot be realized, and the reduction of the gears can cause deviation of the running paths of the chain and the winding plate and the curved plate groove, thereby causing the abrasion of the curved plate groove. The above description describes the actions performed by the inside of the curved plate slot and the related components during the winding process.
The control mechanism 07 is controlled by a PLC and communicates with an upper computer of the production line (the upper computer is the whole control system of the production line, and the winding mechanism is installed in the later period, so that the winding mechanism and the production line system are two independent systems). The control mechanism 07 receives the production speed and the cutting signal from the felt machine production line, and presets instructions (calculates the waiting time and the action time of the forward and backward movement mechanism 02, and the waiting time and the action time of the winding action) through a PLC program. When the roll changing action of rolling is finished (the roll changing is finished by a roll changing motor of a production line, is a part of the production line and is not in the range of a rolling device), the PLC issues an instruction to control the driving motor 04 to drive the front-back moving mechanism 02 to move to a rolling position on the rack guide rail 12 and wait; after the waiting time is over, the PLC sends an instruction to control the coiling motor 05 to drive the coiling pressing plate 14 to do coiling action along the curved plate groove 06; after the coiling action is finished, the PLC issues an instruction to control the driving motor 04 to drive the front-back moving mechanism 02 to move on the rack guide rail 12 and exit from the coiling position. Thereby completing the entire reeling process.
Before the glass chopped strand mat is rolled up, the rolling-up mechanism 03 is located at a rolling-up preparation position, the rolling-up mechanism moves along the rack guide rail 12 along with the automatic rolling-up of the glass chopped strand mat until the rolling-up part 22 detects that the rolling is full, the rolling-up mechanism 03 moves to a full-roll withdrawing position, and the rolling-up pressing plate 14 is separated from the glass chopped strand mat. The diagram 5 describes that the product is cut off, rolled and changed when reaching the set number of meters, the rolling action is anticlockwise rotated, the N bit indicates that the roll is being changed, the M bit indicates that the roll change is finished, at this time, the rolling mechanism 03 enters the working position to roll the felt, the rolling mechanism 03 exits after the roll change, and the rolling is still kept at the M bit until the product reaches the set number of meters to start the next rolling and changing action.
As shown in fig. 5, the reeling device is in the waiting position before reeling. When the product is finished, the rolling device starts rolling and reaches M positions through N positions, at the moment, the rolling device enters the rolling working position from the waiting working position, the rolling pressing plate runs from the bottom of the curved groove to the top to complete rolling and then returns from the top to the bottom to complete rolling, and after the rolling pressing plate completes the action, the rolling mechanism returns from the rolling working position to the waiting working position to wait until the next product is finished.
The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but includes equivalent technical means as would be recognized by those skilled in the art based on the inventive concept.
Claims (6)
1. An automatic glass chopped strand mat winding device is characterized by comprising:
the rack is provided with a horizontal supporting platform, and at least one pair of rack guide rails parallel to each other is erected on the supporting platform;
the front-back moving mechanism comprises a driving part for providing front-back moving driving force and at least one pair of moving frames for supporting the winding mechanism, the bottom of each moving frame is connected with the rack guide rail in a sliding mode, and the winding mechanism is mounted on the upper frame; the movable frames are connected through a transmission shaft, so that the operation of the movable frames on the rack guide rail is kept synchronous; the driving part is arranged on one set of the moving frames, and the output part of the driving part is meshed with the corresponding rack guide rail and is used for converting the circumferential rotation motion of the output part into the linear reciprocating motion of the moving frames moving along the axial direction of the rack guide rail;
the winding mechanism comprises a winding part for automatically winding and a pressing part for pressing the glass fiber chopped strand mat, the winding part is arranged on the moving part, the winding part is provided with an arc-shaped track for the glass fiber chopped strand mat to move, and the gap orientation of the arc-shaped track of the winding part is kept consistent; the pressing part is laid on the surface of the arc-shaped track and fixedly connected with the driving assembly of the upper rolling part, so that the pressing part can slide along the surface of the arc-shaped track under the driving of the driving assembly;
and the control mechanism is arranged on the rack, and a signal transmission port of the control mechanism is respectively in signal connection with the control end of the driving part and the control end of the driving assembly and is used for controlling the front-back moving mechanism and the winding mechanism to work so as to realize the automatic winding of the glass fiber chopped strand mat.
2. The automatic glass chopped strand mat winding device according to claim 1, wherein: the driving part comprises a driving motor and a connecting rod device, the driving motor is arranged on one set of the moving frame, and an output shaft of the driving motor is meshed with the rack rail on the same side through the connecting rod device.
3. The automatic glass chopped strand mat winding device according to claim 1, wherein: the upper rolling part comprises at least one pair of curve plates and a set of driving assembly, each moving frame is provided with one curve plate, and gaps of the arc-shaped tracks on the curve plates are in the same direction; the drive assembly comprises an upward rolling motor, a plurality of gears and an annular chain, the curve plates are oppositely arranged on two sides of the upward rolling part, the upward rolling motor is fixedly arranged on one curve plate, the plurality of gears are distributed on the curve plate, the annular chain is sleeved among the gears, and the teeth of the gears are kept to be meshed with the annular chain; the output shaft of the winding motor is connected with one of the gears serving as the driving wheel, so that the annular chain serving as a moving member moves along the circumferential direction of the arc-shaped track.
4. The automatic glass chopped strand mat winding device according to claim 3, wherein: the curvature of the arc-shaped track is gradually reduced from bottom to top.
5. The automatic glass chopped strand mat reeling device according to claim 4, wherein: the pressing part is an upward rolling pressing plate erected on the arc-shaped track of the curve plate, and the end part of the upward rolling pressing plate is fixedly connected with an annular chain arranged along the circumferential direction of the arc-shaped track.
6. The automatic glass chopped strand mat winding device according to claim 1, wherein: the rack guide rail structure is characterized by further comprising a limiting device, wherein the limiting device is a pair of limiting screws, and the limiting screws are respectively arranged at two ends of the rack guide rail and used for limiting the back-and-forth movement stroke of the back-and-forth movement mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910889653.2A CN110713079A (en) | 2019-09-20 | 2019-09-20 | Automatic winding device for glass fiber chopped strand mats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910889653.2A CN110713079A (en) | 2019-09-20 | 2019-09-20 | Automatic winding device for glass fiber chopped strand mats |
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| Publication Number | Publication Date |
|---|---|
| CN110713079A true CN110713079A (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910889653.2A Pending CN110713079A (en) | 2019-09-20 | 2019-09-20 | Automatic winding device for glass fiber chopped strand mats |
Country Status (1)
| Country | Link |
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| CN (1) | CN110713079A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118334850A (en) * | 2023-04-03 | 2024-07-12 | 珠海精实测控技术股份有限公司 | View angle testing mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4191318A (en) * | 1978-12-22 | 1980-03-04 | Rogers J W | Breakaway uncoiler |
| US4706905A (en) * | 1985-09-10 | 1987-11-17 | Manuel Torres | Reel stand |
| US4830304A (en) * | 1987-01-26 | 1989-05-16 | Kabushiki Kaisha Kaneda Kikai Seisakusho | Automatic device for treating unusable paper used in device for preparing rolls for web pasting |
| CN101475105A (en) * | 2009-01-21 | 2009-07-08 | 中材科技股份有限公司 | Automatic coiling mechanism and winding machine with the same |
| CN101823640A (en) * | 2010-04-22 | 2010-09-08 | 杭州大华工控技术有限公司 | Translation-type winding device of single-layer oil cylinder of splitting machine |
| CN204280816U (en) * | 2014-12-01 | 2015-04-22 | 巨石集团有限公司 | Felt volume produces upper axle auxiliary device automatically |
| CN104743392A (en) * | 2013-12-31 | 2015-07-01 | 重庆鑫仕达包装设备有限公司 | Surface coiling device for paper strips |
| CN206511704U (en) * | 2017-02-18 | 2017-09-22 | 汕头市双丰机械有限公司 | It is easy to the twin shaft winding device of discharging |
-
2019
- 2019-09-20 CN CN201910889653.2A patent/CN110713079A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4191318A (en) * | 1978-12-22 | 1980-03-04 | Rogers J W | Breakaway uncoiler |
| US4706905A (en) * | 1985-09-10 | 1987-11-17 | Manuel Torres | Reel stand |
| US4830304A (en) * | 1987-01-26 | 1989-05-16 | Kabushiki Kaisha Kaneda Kikai Seisakusho | Automatic device for treating unusable paper used in device for preparing rolls for web pasting |
| CN101475105A (en) * | 2009-01-21 | 2009-07-08 | 中材科技股份有限公司 | Automatic coiling mechanism and winding machine with the same |
| CN101823640A (en) * | 2010-04-22 | 2010-09-08 | 杭州大华工控技术有限公司 | Translation-type winding device of single-layer oil cylinder of splitting machine |
| CN104743392A (en) * | 2013-12-31 | 2015-07-01 | 重庆鑫仕达包装设备有限公司 | Surface coiling device for paper strips |
| CN204280816U (en) * | 2014-12-01 | 2015-04-22 | 巨石集团有限公司 | Felt volume produces upper axle auxiliary device automatically |
| CN206511704U (en) * | 2017-02-18 | 2017-09-22 | 汕头市双丰机械有限公司 | It is easy to the twin shaft winding device of discharging |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118334850A (en) * | 2023-04-03 | 2024-07-12 | 珠海精实测控技术股份有限公司 | View angle testing mechanism |
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Application publication date: 20200121 |