CN209830058U - Feeding device of necking machine - Google Patents
Feeding device of necking machine Download PDFInfo
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- CN209830058U CN209830058U CN201920334849.0U CN201920334849U CN209830058U CN 209830058 U CN209830058 U CN 209830058U CN 201920334849 U CN201920334849 U CN 201920334849U CN 209830058 U CN209830058 U CN 209830058U
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Abstract
The utility model discloses the technical field of throat machine discloses a loading attachment of throat machine, set up the feed plate on the workstation, its characterized in that including the slope: a first baffle plate is fixedly arranged on one side of the feeding plate along the length direction, and a second baffle plate is arranged on one side of the feeding plate, which is opposite to the first baffle plate, in a sliding manner; the copper pipe is placed on the feeding plate, one end of the copper pipe is tightly abutted to the first abutting plate, and the other end of the copper pipe is tightly abutted to the second abutting plate; the feeding plate is provided with a screw rod in a rotating mode, the second baffle plate is in threaded connection with the screw rod, and a limiting part for limiting the second baffle plate to rotate is arranged on the feeding plate. The second baffle is slided and is set up on the feed plate to with lead screw threaded connection, through rotating the lead screw, thereby make the second baffle take place to remove along the lead screw, finally can adjust the distance between first baffle and the second baffle, can be applicable to the copper pipe of different length, make the range of application increase.
Description
Technical Field
The utility model belongs to the technical field of the technique of throat machine and specifically relates to a loading attachment of throat machine is related to.
Background
The necking machine is a processing and forming device for necking a generally produced pipe fitting.
Chinese patent with grant publication No. CN207138684U discloses a copper pipe necking machine, which comprises a workbench, a necking device with a necking die is provided on the workbench, a limiting component for limiting circumferential direction of a copper pipe is provided on the workbench, the limiting component comprises a limiting block fixed on the workbench, a limiting groove provided on the limiting block and used for moving the copper pipe, a limiting hole provided on the limiting block and on the same straight line with the axis of the limiting groove, the limiting hole corresponds to the necking die of the necking device, a feeding mechanism for conveying a single copper pipe to the limiting groove is provided on the workbench, and a material pushing mechanism which is located on one side of the limiting component far away from the necking device and used for pushing the copper pipe into the limiting hole for circumferential limiting is also provided on the workbench. The cross-section of the feeding plate is C-shaped.
The feeding mechanism comprises a feeding plate fixedly connected to the workbench and a limiting plate fixedly connected to the feeding plate through a plurality of adjusting assemblies, and the limiting plate inclines towards the workbench under the adjustment of the adjusting assemblies and forms a cavity for the copper pipe to slide down singly. An installation plate is arranged between the feeding plate and the workbench. The feeding plate is fixedly connected to the mounting plate and is arranged towards the limiting block in an inclined mode. When needing the material loading, place the copper pipe on the feed plate that the cross-section is C shape, because the feed plate slope sets up, so the copper pipe receives the action of gravity of self, rolls towards the stopper along the feed plate, finally rolls to the spacing inslot, then processes the copper pipe.
In actual operation in-process discovery, because the cross-section of feed plate is C shape, both ends relatively fixed, and in order to prevent that the copper pipe from taking place the skew at the in-process of whereabouts to need make the both ends of copper pipe all support tightly with the both ends of feed plate, so can only transmit to the copper pipe of a length, therefore unable copper pipe that is applicable to different length, the range of application is less, and the practicality is lower.
SUMMERY OF THE UTILITY MODEL
Not enough to above-mentioned prior art exists, the utility model aims at then providing a loading attachment of throat machine, the second is supported the baffle and is slided and set up on the feed plate to with lead screw threaded connection, through rotating the lead screw, thereby make the second support the baffle and take place to remove along the lead screw, finally can adjust the distance between first baffle and the second support the baffle, can be applicable to the copper pipe of different length, make the range of application increase.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a loading attachment of throat machine, includes that the slope sets up the feed plate on the workstation, its characterized in that: a first baffle plate is fixedly arranged on one side of the feeding plate along the length direction, and a second baffle plate is arranged on one side of the feeding plate, which is opposite to the first baffle plate, in a sliding manner; the copper pipe is placed on the feeding plate, one end of the copper pipe is tightly abutted to the first abutting plate, and the other end of the copper pipe is tightly abutted to the second abutting plate; the feeding plate is provided with a screw rod in a rotating mode, the second baffle plate is in threaded connection with the screw rod, and a limiting part for limiting the second baffle plate to rotate is arranged on the feeding plate.
By adopting the technical scheme, before work, the distance between the second baffle plate and the first baffle plate is adjusted according to the length of the copper pipe, and when the distance is adjusted, the lead screw is rotated to enable the second baffle plate to move along the axial direction of the lead screw, so that the distance between the first baffle plate and the second baffle plate is changed; due to the existence of the limiting part, the second baffle cannot rotate along with the rotation of the screw rod, so that the second baffle can move along with the rotation of the screw rod, the distance between the first baffle and the second baffle can be adjusted finally according to copper pipes with different lengths, the copper pipe with different lengths is suitable for the copper pipes with different lengths, and the application range is enlarged.
The utility model discloses further set up to: a feeding slide way is arranged on the workbench and is positioned at one end with a lower horizontal height of the feeding plate, a discharging hole for conveying out a copper pipe is formed in the side surface, close to the workbench, of the feeding slide way, a pushing plate is arranged on the workbench in a sliding mode, and the pushing plate and the discharging hole are mutually matched in an inserted mode; the workbench is provided with a transmission part for driving the push plate to slide.
By adopting the technical scheme, the feeding plate is obliquely arranged, so that the copper pipe rolls towards the direction of the feeding slideway under the action of self gravity, then falls into the feeding slideway, and then falls at the discharge port; then promote the catch plate by the driving medium and move towards the discharge gate to promote the copper pipe of discharge gate department to copper pipe processing department, simple structure, convenient operation.
The utility model discloses further set up to: the transmission part comprises a driving motor fixedly arranged on the workbench, a cam fixedly arranged on an output shaft of the driving motor and a driving rod with one end fixedly arranged on one side of the pushing plate far away from the discharge hole, and one end of the driving rod far away from the pushing plate is tightly abutted against the side wall of the cam; the workbench is provided with a driving piece which enables the end part of the driving rod far away from the pushing plate to be always abutted against the cam.
By adopting the technical scheme, when the copper pipe falls to the discharge port, the driving motor is started to drive the cam to rotate, so that the driving rod is driven to move in the direction back to the driving motor, the pushing plate is driven to be inserted into the discharge port, and then the copper pipe at the discharge port is pushed to a processing position to be processed; after the promotion finishes, along with the rotation of cam, when the cam lateral wall broke away from the tip of slurcam to being close to the actuating lever, the actuating lever received the effect of driving piece, drove the actuating lever and continue to paste and lean on the lateral wall at the cam to drive the actuating lever and move towards the direction back to the slurcam, thereby drive the slurcam from discharge gate department and come out, next copper pipe continues to drop in discharge gate department, so can promote one copper pipe one by one to processing department, simple structure, and convenient for driving.
The utility model discloses further set up to: the driving piece comprises a first supporting plate fixedly arranged on the workbench, a second supporting plate fixedly arranged on the driving rod and opposite to the first supporting plate, and a spring arranged between the first supporting plate and the second supporting plate; the second backup pad is located first backup pad is close to one side of cam, the spring is in the state of compressed all the time.
Through adopting above-mentioned technical scheme, release the copper pipe from the discharge gate department under the drive of cam as the actuating lever, then the cam is still rotating this moment, and the lateral wall as the cam does not have the effort to the actuating lever, and the actuating lever receives the elasticity of spring and slides towards the direction back to the slurcam this moment to for promoting next copper pipe ready, simple structure, the drive is stable.
The utility model discloses further set up to: a first guide rod is fixedly arranged on the first supporting plate, and a second guide rod is fixedly arranged on the second supporting plate; one end of the spring is sleeved on the first guide rod, and the other end of the spring is sleeved on the second guide rod.
Through adopting above-mentioned technical scheme, the spring housing is established on first guide bar and second guide bar to make when the spring atress and compressed can not crooked, guaranteed the effort to the actuating lever, can be normal do drive work.
The utility model discloses further set up to: the limiting parts comprise limiting grooves formed in the length direction of the feeding plate and limiting blocks fixedly arranged on the second baffle plate and arranged in the limiting grooves in a sliding mode, and the two limiting parts are arranged and are arranged at intervals.
Through adopting above-mentioned technical scheme, when the lead screw rotated, the second was kept to the baffle and has the trend along with the lead screw rotates together, and the stopper slides and sets up at the spacing inslot to prevent that the second from keeping to the baffle along with the lead screw rotates and influence the adjustment work that the second kept to the baffle.
The utility model discloses further set up to: a connecting plate is fixedly arranged on the workbench, one end of the connecting plate is fixedly connected with the side wall of the feeding plate facing the workbench, and the other end of the connecting plate is fixedly connected with the workbench; the connecting plate is provided with a sliding hole for the insertion of the driving rod; the driving rod is arranged in the sliding hole in a sliding mode, one side of the driving rod is tightly abutted to the side wall, opposite to the workbench, of the sliding hole, and the other side of the driving rod is tightly abutted to the workbench.
Through adopting above-mentioned technical scheme, the connecting plate supports the actuating lever tightly on the workstation all the time to make the actuating lever slide on the workstation all the time, improved the stability that the actuating lever slided.
The utility model discloses further set up to: be provided with on the workstation with first backup pad and protective housing including the spring package, the protective housing orientation the lateral wall of actuating lever is followed the slot hole has been seted up to the length direction of actuating lever, the slot hole confession the second backup pad passes and slides.
Through adopting above-mentioned technical scheme, with the spring parcel in the protective housing to prevent the possibility of impurity attached to above the spring, improved spring life.
To sum up, the utility model discloses a beneficial technological effect does:
1. the second baffle is arranged on the feeding plate in a sliding mode and is in threaded connection with the lead screw, the second baffle moves along the lead screw by rotating the lead screw, the distance between the first baffle and the second baffle can be adjusted finally, the copper pipe pressing device is applicable to copper pipes with different lengths, and the application range is enlarged;
2. when the copper pipe falls to the discharge port, the driving motor is started to drive the cam to rotate, so that the driving rod is driven to move in a direction back to the driving motor, the pushing plate is driven to be inserted into the discharge port, and then the copper pipe at the discharge port is pushed to a processing position to be processed; after the promotion finishes, along with the rotation of cam, when the cam lateral wall broke away from the tip of slurcam to being close to the actuating lever, the actuating lever received the effect of driving piece, drove the actuating lever and continue to paste and lean on the lateral wall at the cam to drive the actuating lever and move towards the direction back to the slurcam, thereby drive the slurcam from discharge gate department and come out, next copper pipe continues to drop in discharge gate department, so can promote one copper pipe one by one to processing department, simple structure, and convenient for driving.
Drawings
Fig. 1 is a schematic structural view of a feeding device of a necking machine of the present invention;
FIG. 2 is a schematic structural view of the hidden protective shell in FIG. 1, which is used for showing the structure of the feeding device;
FIG. 3 is an enlarged view of portion A of FIG. 1, illustrating the structure of the opening;
FIG. 4 is an enlarged view of portion B of FIG. 1, illustrating the configuration of the slot;
FIG. 5 is an enlarged schematic view of section C of FIG. 2, illustrating the construction of the drive member;
fig. 6 is an enlarged schematic view of a portion D in fig. 2, for illustrating a structure of the stopper.
Reference numerals: 1. a feeding plate; 2. a necking device; 3. a feeding slideway; 4. a discharge port; 5. an opening; 6. a work table; 7. a limiting member; 71. a limiting groove; 72. a limiting block; 8. a transmission member; 81. a drive motor; 82. a cam; 83. a drive rod; 9. a drive member; 91. a first support plate; 92. a second support plate; 93. a spring; 10. a push plate; 11. a sliding hole; 12. a first guide bar; 13. a second guide bar; 14. a protective shell; 15. a long hole; 16. a first baffle plate; 17. a second baffle plate; 18. a connecting plate; 19. a lead screw; 20. a support table; 21. and a limiting plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 3, the utility model discloses a loading attachment of throat machine, including feed plate 1, the slope of feed plate 1 sets up on the workstation 6 of throat machine. The working table 6 is provided with a necking device 2, and the structure of the necking device 2 is the prior art and is not described herein again. A supporting table 20 is integrally arranged on the workbench 6 on one side of the necking device 2, a feeding slide rail 3 is arranged on the supporting table 20, and the feeding slide rail 3 is a channel with a rectangular cross section. One side of the feeding slide way 3 close to the supporting table 20 is provided with a discharge hole 4 for the copper pipe to pass through along the thickness direction of the feeding slide way 3, and the discharge hole 4 is a through hole. An opening 5 is arranged at one end of the feeding slideway 3 far away from the discharge hole 4. The lower end of the horizontal height of the feeding plate 1 is butted with an opening 5 of the feeding slideway 3. The support table 20 is welded with a connecting plate 18, the connecting plate 18 is located on one side of the feeding slide 3 away from the necking device 2, and one side of the connecting plate 18 away from the support table 20 is welded with the bottom side wall of the feeding plate 1 to support the feeding plate 1. A limiting plate 21 is fixedly arranged at the opening 5 of the feeding chute 3, and the limiting plate 21 is positioned at one side of the opening 5 far away from the feeding plate 1.
Referring to fig. 2 and 4, a pushing plate 10 is inserted into the discharge port 4, and the pushing plate 10 is slidably disposed on the support platform 20. The driving plate 10 is provided with a driving member 8. The transmission member 8 includes a drive motor 81, a cam 82, and a drive lever 83. The driving rod 83 is slidably disposed on the support stand 20. The connecting plate 18 is provided with a sliding hole 11, and the driving rod 83 is arranged in the sliding hole 11 in a sliding manner. One end of the driving rod 83 is fixedly connected with the side wall of the pushing plate 10 far away from the throat device 2, the other end of the driving rod passes through the sliding hole 11, and the side wall of the driving rod 83 far away from the support table 20 is tightly abutted against the side wall of the sliding hole 11. The driving motor 81 is fixedly installed on the supporting platform 20 and is located on a side of the driving rod 83 away from the pushing plate 10. The rotation center of the cam 82 is fixedly installed on the output shaft of the driving motor 81, and the axis of the output shaft of the driving motor 81 is perpendicular to the table top of the support table 20. The end of the driving lever 83 remote from the push plate 10 is always in abutment with the side wall of the cam 82.
Referring to fig. 4 and 5, the driving member 9 is disposed on the supporting table 20, and the driving member 9 includes a first supporting plate 91, a second supporting plate 92, and a spring 93. The first support plate 91 is welded to the support table 20 and is located on one side of the drive rod 83. The second support plate 92 is welded to the side wall of the driving rod 83 near the first support plate 91, and the direction from the first support plate 91 to the second support plate 92 is consistent with the length direction of the driving rod 83. The first guide bar 12 is welded to a side wall of the first support plate 91 facing the second support plate 92, and the second guide bar 13 is welded to a side wall of the second support plate 92 facing the first support plate 91. One end of the spring 93 is welded on the first supporting plate 91 and sleeved on the first guide rod 12; the other end is welded on the second support plate 92 and sleeved on the second guide rod 13; the spring 93 is always in a compressed state. The support platform 20 is welded with a protective shell 14, and the first support plate 91 and the spring 93 are both located in the protective shell 14. The side wall of the protective shell 14 is provided with a long hole 15 through which the second support plate 92 slides, and the part of the second support plate 92 containing the second guide rod 13 is located in the protective shell 14.
Referring to fig. 2 and 6, a first baffle 16 is integrally disposed on a side wall of the feed plate 1 away from the connecting plate 18, and the first baffle 16 is located on one side of the feed plate 1 and is disposed along a length direction of the feed plate 1. The opposite part of the feeding plate 1 and the first baffle 16 is provided with a second baffle 17 which is also arranged along the length direction of the feeding plate 1. The first baffle 16, the second baffle 17 and the feeding plate 1 form a space for placing copper pipes; one end of the copper tube is abutted against the first abutting plate 16, and the other end is abutted against the second abutting plate 17. The feeding plate 1 is provided with a limiting member 7, and the limiting member 7 comprises a limiting groove 71 and a limiting block 72. The limiting groove 71 is formed in the feeding plate 1 and is formed along the width direction of the feeding plate 1. The stopper 72 is integrally provided on the side wall of the second baffle 17 and is slidably fitted in the stopper groove 71. The limiting pieces 7 are provided with two identical sets and are arranged on the feeding plate 1 at intervals respectively. The side wall of the feeding plate 1 close to the connecting plate 18 is rotatably provided with a screw rod 19 through a bearing, the screw rod 19 is in threaded connection with one of the limiting blocks 72, and the limiting blocks 72 are driven to slide along the length direction of the limiting groove 71 by rotating the screw rod 19.
The implementation principle is as follows:
during working, an operator rotates the screw rod 19 to adjust the distance between the first baffle 16 and the second baffle 17 according to the length of the copper pipe, so that the first baffle 16 and the second baffle 17 are respectively abutted to two ends of the copper pipe. Then place a plurality of copper pipe on feed plate 1, the copper pipe rolls from feed plate 1 to material loading slide 3 under the effect of self gravity in, then the copper pipe that is closest to workstation 6 drops at discharge gate 4 department earlier, and subsequent copper pipe stack is on preceding copper pipe.
Then, the driving motor 81 is started, the cam 82 is driven by the driving motor 81 to rotate, the driving rod 83 is driven to move towards the direction back to the cam 82 by overcoming the elastic force of the spring 93, so that the pushing plate 10 is driven to move towards the direction back to the cam 82, and finally, the copper pipe is pushed to the necking device 2 from the discharge hole 4 for processing. When the side wall of the cam 82 no longer has an acting force on the driving rod 83 due to the rotation of the cam 82, the second supporting plate 92 receives the elastic force of the spring 93 to drive the driving rod 83 to move toward the cam 82, so that the end of the driving rod 83 far away from the pushing plate 10 always abuts against the side wall of the cam 82; thereby driving the pushing plate 10 to move out from the discharge hole 4 to transport the next copper pipe.
In this way, continuously relapse promote every copper pipe to throat device 2 department from discharge gate 4 and process, convenient and fast to can adjust the distance between first baffle 16 and the second baffle 17 according to the length of copper pipe, make first baffle 16 and second baffle 17 support tightly with the copper pipe all the time, guarantee that the copper pipe can not produce crooked when getting into the material loading and sliding.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a loading attachment of throat machine, includes that the slope sets up feed plate (1) on workstation (6), its characterized in that: a first baffle plate (16) is fixedly arranged on one side of the feeding plate (1) along the length direction, and a second baffle plate (17) is arranged on one side of the feeding plate (1) opposite to the first baffle plate (16) in a sliding manner; the copper pipe is placed on the feeding plate (1), one end of the copper pipe is tightly abutted to the first abutting plate (16), and the other end of the copper pipe is tightly abutted to the second abutting plate (17); the feeding plate (1) is provided with a lead screw (19) in a rotating mode, the second baffle plate (17) is in threaded connection with the lead screw (19), and the feeding plate (1) is provided with a limiting part (7) for limiting the rotation of the second baffle plate (17).
2. A loading device of a necking machine according to claim 1, characterized in that: a feeding slide way (3) is arranged on the workbench (6), the feeding slide way (3) is positioned at one end of the feeding plate (1) with a lower horizontal height, a discharging hole (4) for conveying out a copper pipe is formed in the side surface, close to the workbench (6), of the feeding slide way (3), a pushing plate (10) is arranged on the workbench (6) in a sliding mode, and the pushing plate (10) and the discharging hole (4) are matched in an inserted mode; and a transmission piece (8) for driving the push plate (10) to slide is arranged on the workbench (6).
3. A loading device of a necking machine according to claim 2, characterized in that: the transmission piece (8) comprises a driving motor (81) fixedly arranged on the workbench (6), a cam (82) fixedly arranged on an output shaft of the driving motor (81), and a driving rod (83) with one end fixedly arranged on one side, far away from the discharge hole (4), of the pushing plate (10), and one end, far away from the pushing plate (10), of the driving rod (83) is abutted against the side wall of the cam (82); the workbench (6) is provided with a driving piece (9) which enables the end part of the driving rod (83) far away from the pushing plate (10) to be always abutted against the cam (82).
4. A loading device of a necking machine according to claim 3, characterized in that: the driving piece (9) comprises a first supporting plate (91) fixedly arranged on the workbench (6), a second supporting plate (92) fixedly arranged on the driving rod (83) and opposite to the first supporting plate (91), and a spring (93) arranged between the first supporting plate (91) and the second supporting plate (92); the second support plate (92) is located on one side of the first support plate (91) close to the cam (82), and the spring (93) is always in a compressed state.
5. A loading device of a necking machine according to claim 4, characterized in that: a first guide rod (12) is fixedly arranged on the first support plate (91), and a second guide rod (13) is fixedly arranged on the second support plate (92); one end of the spring (93) is sleeved on the first guide rod (12), and the other end of the spring is sleeved on the second guide rod (13).
6. A loading device of a necking machine according to claim 1, characterized in that: the limiting piece (7) comprises a limiting groove (71) formed in the length direction of the feeding plate (1) and a limiting piece (72) fixedly arranged on the second baffle plate (17) and arranged in the limiting groove (71) in a sliding mode, and the limiting piece (7) comprises two sets which are arranged at intervals.
7. A loading device of a necking machine according to claim 3, characterized in that: a connecting plate (18) is fixedly arranged on the workbench (6), one end of the connecting plate (18) is fixedly connected with the side wall of the feeding plate (1) facing the workbench (6), and the other end of the connecting plate is fixedly connected with the workbench (6); the connecting plate (18) is provided with a sliding hole (11) for the insertion of the driving rod (83); the driving rod (83) is arranged in the sliding hole (11) in a sliding mode, one side of the driving rod is tightly abutted to the side wall, opposite to the workbench (6), of the sliding hole (11), and the other side of the driving rod is tightly abutted to the workbench (6).
8. A loading device of a necking machine according to claim 4, characterized in that: be provided with on workstation (6) with first backup pad (91) and protective housing (14) including spring (93) parcel, protective housing (14) orientation the lateral wall of actuating lever (83) is followed slot hole (15) have been seted up to the length direction of actuating lever (83), slot hole (15) confession second backup pad (92) pass and slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920334849.0U CN209830058U (en) | 2019-03-15 | 2019-03-15 | Feeding device of necking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920334849.0U CN209830058U (en) | 2019-03-15 | 2019-03-15 | Feeding device of necking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209830058U true CN209830058U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920334849.0U Active CN209830058U (en) | 2019-03-15 | 2019-03-15 | Feeding device of necking machine |
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| Country | Link |
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| CN (1) | CN209830058U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353610A (en) * | 2021-01-28 | 2021-09-07 | 安徽科技学院 | Automatic unloader of circular teatcup shell is used in milk cow milking |
| CN114247776A (en) * | 2021-12-10 | 2022-03-29 | 大连德迈仕精密科技股份有限公司 | Motor shaft straightening mechanism for motor shaft preparation and using method |
| CN114474857A (en) * | 2021-12-31 | 2022-05-13 | 苏州市华事达印刷包装有限公司 | Efficient bag making machine |
-
2019
- 2019-03-15 CN CN201920334849.0U patent/CN209830058U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353610A (en) * | 2021-01-28 | 2021-09-07 | 安徽科技学院 | Automatic unloader of circular teatcup shell is used in milk cow milking |
| CN114247776A (en) * | 2021-12-10 | 2022-03-29 | 大连德迈仕精密科技股份有限公司 | Motor shaft straightening mechanism for motor shaft preparation and using method |
| CN114474857A (en) * | 2021-12-31 | 2022-05-13 | 苏州市华事达印刷包装有限公司 | Efficient bag making machine |
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