CN213648194U - Scroll saw cutting device - Google Patents
Scroll saw cutting device Download PDFInfo
- Publication number
- CN213648194U CN213648194U CN202022124481.0U CN202022124481U CN213648194U CN 213648194 U CN213648194 U CN 213648194U CN 202022124481 U CN202022124481 U CN 202022124481U CN 213648194 U CN213648194 U CN 213648194U
- Authority
- CN
- China
- Prior art keywords
- clamping
- assembly
- cutting
- upper clamping
- gear train
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model relates to the field of processing of brittle and hard materials, in particular to a scroll saw cutting device, which comprises a scroll saw cutting mechanism and an edge material clamping and collecting mechanism; the wire saw cutting mechanism comprises a gear train panel, a cutting running gear train and a diamond wire saw, the rim charge clamping and collecting mechanism is positioned on one side of the gear train panel back to the cutting running gear train, and the rim charge clamping and collecting mechanism comprises an upper clamping unit, a lower clamping unit and a lifting unit; the lifting unit is connected with the upper clamping unit; the upper clamping unit comprises an upper clamping assembly and a horizontal displacement driving assembly, and the horizontal displacement driving assembly is connected with the upper clamping assembly; the lower clamping unit comprises a lower clamping assembly and a rotary displacement driving assembly, the lower clamping assembly is rotatably fixed on the wheel train panel, and the telescopic end of the rotary displacement driving assembly is connected with the lower clamping assembly. This scheme can be convenient the transportation of collecting of realization rim charge, need not to set up rim charge centre gripping transport mechanism specially, reduces use cost, reduces equipment volume.
Description
Technical Field
The utility model relates to a brittle and hard material processing field especially relates to a scroll saw cutting device.
Background
Silicon crystals are used very widely in the photovoltaic industry. The silicon rod is subjected to primary processing in order to meet the quality parameters of the silicon crystal rod and the appearance and the size of the next process.
Circular silicon crystal bar is using before the processing of product preparation, generally need carry out silicon crystal bar evolution cutting work, and after carrying out evolution cutting work, the rim charge that the cutting was got rid of is transported and is collected comparatively inconvenient. In the existing squaring equipment, one is that the rim charge falls, but the equipment is easy to be damaged, and the working environment is influenced. The other is that it gets transport mechanism to set up the rim charge clamp specially and transport the collection to the rim charge, and not only use cost is higher, but also can lead to the coping saw cutting machine to be bulky, is unfavorable for transporting and laying.
Disclosure of Invention
Therefore, a wire saw cutting device needs to be provided for solving the technical problems that in the prior art, the edge material clamp generated after cutting of silicon crystal bar materials is inconvenient to clamp and transport, the use cost is high, and the equipment volume is large.
In order to achieve the purpose, the utility model provides a scroll saw cutting device, which comprises a scroll saw cutting mechanism and an edge material clamping and collecting mechanism;
the wire saw cutting mechanism comprises a gear train panel, a cutting running gear train and a diamond wire saw, wherein the cutting running gear train is arranged on the gear train panel, a clamping and abdicating groove is formed in the gear train panel, and the diamond wire saw is annularly arranged in a wire groove of the cutting running gear train;
the rim charge clamping and collecting mechanism is positioned on one side of the gear train panel back to the cutting running gear train and comprises an upper clamping unit, a lower clamping unit and a lifting unit;
the lifting unit is connected with the upper clamping unit and is used for driving the upper clamping mechanism to ascend or descend;
the upper clamping unit comprises an upper clamping assembly and a horizontal displacement driving assembly, the horizontal displacement driving assembly is connected with the upper clamping assembly, and the upper clamping assembly can horizontally penetrate through the clamping abdicating groove and is arranged above the upper end face of the rim charge;
the centre gripping unit includes centre gripping subassembly and rotary displacement drive assembly down, the centre gripping subassembly is rotatable to be fixed in on the train panel down, centre gripping subassembly under rotary displacement drive assembly's flexible end is connected, and lower centre gripping subassembly is rotatable to pass centre gripping groove of stepping down and rim charge terminal surface top tightly.
As the utility model discloses a preferred structure, rim charge centre gripping collecting mechanism still includes lift slider, horizontal slide rail and horizontal slider, the lift slider cover is located on the lift unit, horizontal slide rail is connected with the lift slider, horizontal slider sets up on horizontal slide rail, it is fixed in on the horizontal slider to go up the centre gripping subassembly.
As a preferred structure of the utility model, the lifting unit is a rodless cylinder, and the lifting slider is sleeved on a piston of the rodless cylinder; or the lifting unit is one of a hydraulic cylinder, a linear push rod motor and a ball screw, and the lifting slide block is connected with the lifting end of the lifting unit.
As a preferred structure of the utility model, it has two tight pieces in top towards one side of cutting the operation train to go up the centre gripping subassembly.
As a preferred structure of the utility model, the lateral wall in lower centre gripping subassembly and centre gripping groove of stepping down is articulated.
As a preferred structure of the utility model, the flexible end of rotary displacement drive assembly is articulated with lower centre gripping subassembly.
As a preferred structure of the utility model, one side that centre gripping subassembly orientation cutting moving gear train has two tight pieces in top down.
As a preferred structure of the utility model, horizontal displacement drive assembly and rotary displacement drive assembly are one of cylinder, pneumatic cylinder or linear push rod motor.
As the utility model discloses a preferred structure, the centre gripping groove of stepping down includes that the centre gripping steps down the groove and the groove of stepping down of lower centre gripping, it can level pass the centre gripping groove of stepping down and the rim charge up end top tightly to go up the centre gripping subassembly, the rotatable centre gripping that passes of lower centre gripping subassembly steps down the groove and the rim charge under the terminal surface top tightly.
Different from the prior art, the technical scheme has the following advantages: the utility model relates to a scroll saw cutting device, scroll saw cutting mechanism's cutting operation system rotates on the train panel, drive diamond wire saw rotates, cutting the cutting of evolution is carried out to the silicon crystal bar along with the decline of scroll saw cutting mechanism, in evolution cutting process, the rim charge can be carried out the centre gripping by evolution fixture, after accomplishing silicon crystal bar evolution, the horizontal displacement drive assembly of going up the centre gripping unit drives on centre gripping subassembly passes the centre gripping groove of stepping down and arranges in the rim charge up end, the centre gripping subassembly passes centre gripping groove of stepping down and rim charge under the rotary displacement drive assembly of centre gripping unit drives simultaneously and pushes up tightly, the elevating system drives fixture downstream, make and go up the centre gripping subassembly top tightly on the up end of rim charge, the opening fixture loosens the rim charge this moment, thereby rim charge centre gripping collecting mechanism alright tak the rim charge with following the cutting mechanism motion. In this scheme, rim charge centre gripping receiving mechanism is integrated on coping saw cutting mechanism's train panel, after silicon crystal bar material evolution cutting, rim charge centre gripping receiving mechanism can clip the rim charge to follow coping saw cutting mechanism concerted movement, the transportation of collecting of convenient realization rim charge need not to set up rim charge centre gripping transport mechanism specially, reduces use cost, reduces equipment volume.
Drawings
Fig. 1 is a schematic perspective view of a wire saw cutting device according to an embodiment;
FIG. 2 is a rear perspective view of the structure of FIG. 1;
FIG. 3 is a schematic perspective view of a wire saw cutting device according to an embodiment in a state of holding a rim charge;
FIG. 4 is a rear perspective view of the structure of FIG. 3;
fig. 5 is a schematic structural diagram of a silicon ingot bar in a cutting state according to an embodiment.
Description of reference numerals:
100. a wire saw cutting mechanism;
110. a wheel train panel; 111. an upper clamping abdicating groove; 112. a lower clamping abdicating groove;
120. cutting a running gear train;
130. a diamond wire saw;
200. an edge material clamping and collecting mechanism;
210. an upper clamping unit; 211. an upper clamping assembly; 212. a horizontal displacement drive assembly;
220. a lower clamping unit; 221. a lower clamping assembly; 222. a rotary displacement drive assembly;
230. a lifting unit;
240. a lifting slide block;
250. a horizontal slide rail;
260. a horizontal slider;
270. a jacking block;
300. silicon crystal bar stock;
400. leftover materials;
500. evolution fixture.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 to 5, the present embodiment provides a wire saw cutting apparatus for cutting a silicon ingot 300 and collecting and transferring scrap 400 removed after cutting. Specifically, the wire saw cutting device comprises a wire saw cutting mechanism 100 and an offcut clamping and collecting mechanism 200;
the wire saw cutting mechanism 100 is used for squaring and cutting a silicon ingot 300. Specifically, the wire saw cutting mechanism 100 comprises a gear train panel 110, a cutting running gear train 120 and a diamond wire saw 130, wherein the cutting running gear train 120 is arranged on the gear train panel 110, a clamping and abdicating groove is formed in the gear train panel 110, and the diamond wire saw 130 is annularly arranged in a wire groove of the cutting running gear train 120; the driving wheel in the cutting running gear train 120 rotates to drive the diamond wire saw 130 to rotate with the driven wheel, and the diamond wire saw 130 generates cutting force in high-speed rotation motion, so that the silicon crystal bar 300 can be cut in an open direction when being contacted with the silicon crystal bar. In practical use, the wire saw cutting mechanism 100 is connected with an external displacement driving mechanism, so as to drive the wire saw cutting mechanism 100 to move to a specified cutting position, and drive the wire saw cutting mechanism to lift or lower so as to completely cut off the rim charge 400. The wire saw cutting operation mechanism can be selected from a three-wheel train, a four-wheel train, a five-wheel train and the like, as long as the cutting of the silicon crystal bar 300 can be completed.
The scrap clamping and collecting mechanism 200 is used for clamping and collecting the scrap 400 cut off from the silicon crystal bar 300, and then transporting the scrap 400 to the collection mechanism along with the wire saw cutting mechanism 100. Specifically, the rim charge clamping and collecting mechanism 200 is located on one side of the wheel train panel 110 opposite to the cutting running wheel train 120, and the rim charge clamping and collecting mechanism 200 comprises an upper clamping unit 210, a lower clamping unit 220 and a lifting unit 230;
the lifting unit 230 is connected with the upper clamping unit 210, and the lifting unit is used for driving the upper clamping mechanism to ascend or descend so as to adapt to the rim charge 400 with different length specifications by adjusting the position of the upper clamping assembly 211;
the upper clamping unit 210 is used for pressing the upper end surface of the edge piece 400 after the silicon crystal ingot 300 is cut. Specifically, the upper clamping unit 210 includes an upper clamping assembly 211 and a horizontal displacement driving assembly 212, the horizontal displacement driving assembly 212 is connected to the upper clamping assembly 211, and the upper clamping assembly 211 can horizontally pass through the clamping abdicating slot and be disposed above the upper end surface of the rim charge 400; the horizontal position driving component is used for driving the upper clamping component 211 to move left and right in the horizontal direction; when the cutting is performed, the upper clamping assembly 211 is driven to be far away from the rim charge 400, so as to prevent interference on normal cutting; after the squaring and cutting are completed, the horizontal displacement driving assembly 212 drives the upper clamping assembly 211 to horizontally pass through the clamping abdicating groove and be arranged above the upper end surface of the rim charge 400, and then the lifting unit drives the upper clamping assembly 211 to tightly push the upper end surface of the rim charge 400.
The lower clamping unit 220 clamps the upper end surface of the edge piece 400 after the silicon crystal bar 300 is cut. Lower clamping unit 220 includes centre gripping subassembly 221 and rotary displacement drive assembly 222 down, centre gripping subassembly 221 is rotatable to be fixed in on the train panel 110 down, centre gripping subassembly 221 is down connected to rotary displacement drive assembly 222's flexible end, and lower centre gripping subassembly 221 is rotatable to pass the centre gripping groove of stepping down and rim charge lower extreme face top tightly. The rotary displacement driving assembly 222 can drive the lower clamping assembly 221 to rotate around the hinged position of the lower clamping assembly 221 and the gear train panel 110 through the telescopic movement of the telescopic end, so that the lower clamping assembly 221 is tightly pressed against the lower end face of the rim charge. Therefore, the offcut is clamped at the upper end and the lower end of the offcut simultaneously, the offcut clamping and collecting unit is fixed on the wheel train panel 110 of the wire saw cutting mechanism 100 and can move along with the wire saw cutting mechanism 100, and the clamped offcut is convenient to transfer and collect.
In the wire saw cutting device of the present embodiment, the cutting traveling wheel 120 of the wire saw cutting mechanism 100 rotates on the wheel panel 110, the diamond wire saw 130 is driven to rotate, as the wire saw cutting mechanism 100 descends, the silicon crystal bar 300 is cut in an open direction, in the cutting process, the rim charge is clamped by the cutting clamping mechanism 500, after the cutting of the silicon crystal bar 300 is completed, the horizontal displacement driving component 212 of the upper clamping unit 210 drives the upper clamping component 211 to pass through the clamping abdicating slot and be arranged on the upper end surface of the rim charge, meanwhile, the rotary displacement driving assembly 222 of the lower clamping unit 220 drives the lower clamping assembly 221 to pass through the clamping abdicating groove and tightly push against the lower end surface of the rim charge, the lifting unit 230 drives the upper clamping mechanism to move downwards, so that the upper clamping assembly 211 is tightly pressed against the upper end surface of the rim charge, and the cutting clamping mechanism 500 releases the rim charge, the rim charge clamping and collecting mechanism 200 can move along with the wire saw cutting mechanism 100 to take away the rim charge. In this scheme, rim charge centre gripping collecting mechanism 200 is integrated on coping saw cutting mechanism 100's train panel 110, after silicon crystal bar 300 evolution cutting, rim charge can be cliied to rim charge centre gripping collecting mechanism 200 to follow coping saw cutting mechanism 100 concerted movement, the transportation of collecting of convenient realization rim charge need not to set up rim charge centre gripping transport mechanism specially, reduces use cost, reduces the equipment volume.
Referring to fig. 1 and fig. 4, as a preferred embodiment of the present invention, the rim charge clamping and collecting mechanism further includes a lifting slider 240, a horizontal sliding rail 250 and a horizontal slider 260, the lifting slider 240 is sleeved on the lifting unit 230, the horizontal sliding rail is connected to the lifting slider 240, the horizontal slider 260 is disposed on the horizontal sliding rail, and the upper clamping assembly 211 is fixed on the horizontal slider 260. The horizontal sliding rail 250 is driven by the movement of the lifting slide block 240 to move and lift together with the horizontal movement, so as to drive the upper clamping component 211 to move up and down. In this embodiment, the upper clamping assembly 211 is slidably connected to the horizontal sliding rail through the horizontal sliding block 260, so that the movement of the upper clamping assembly 211 is more stable when the horizontal displacement driving mechanism drives the upper clamping assembly. Preferably, go up centre gripping subassembly 211 and have two protrusion top tight piece 270 towards one side of cutting moving gear train 120, can enough stably press from both sides the up end of rim charge tightly, can reduce centre gripping subassembly 211 material again, can also have certain space of stepping down, prevent that it from transporting the centre gripping when the centre gripping is carried out to the rim charge, cause the interference with the fixture 500 that opens the side that carries out the rim charge when opening the side cutting. Preferably, a top rod is further disposed on the top block 270 of the upper clamping assembly 211 to further ensure the stability of clamping.
In a specific embodiment, the lifting unit is a rodless cylinder, and the lifting slider 240 is sleeved on a piston of the rodless cylinder. Installation space can be saved to no pole cylinder for clamping device's structure is more compact, and structural firmness is stronger, and difficult emergence is damaged. In other embodiments, the lifting unit can also be a hydraulic cylinder, a linear push rod motor, a ball screw, a synchronous conveyer belt or the like, and the lifting unit can drive the upper clamping assembly to move up and down, so long as the upper clamping assembly can be stably driven to adjust the height.
In a specific embodiment, the lower clamping assembly 221 is hinged to a sidewall of the clamping abdicating groove, so that the lower clamping assembly 221 rotates to tightly push the lower end surface of the edge material 400. Preferably, the telescopic end of the rotary displacement driving assembly 222 is hinged to the lower clamping assembly 221, so that the movement of the lower clamping assembly 221 is smoother.
Referring to fig. 1 and 3, as a preferred embodiment of the present invention, the lower clamping assembly 221 has two tightening blocks 270 toward one side of the cutting travel wheel 120. Set up two protrusion top tight piece 270 and can enough carry out the stability to the lower terminal surface of rim charge 400 and press from both sides tightly, can reduce down centre gripping subassembly 221 materials again, can also have certain space of stepping down, prevent that it from when transporting centre gripping to rim charge 400, cause the interference with the clamping mechanism 500 of evolution that carries out rim charge 400 when the evolution cutting.
In particular embodiments, the horizontal displacement drive assembly 212 and the rotary displacement drive assembly 222 are one of an air cylinder, a hydraulic cylinder, or a linear push rod motor.
In the embodiment shown in fig. 1 to 4, the clamping and abdicating slots include an upper clamping and abdicating slot 111 and a lower clamping and abdicating slot 112, the upper clamping component 211 can horizontally pass through the upper clamping and abdicating slot 111 to be tightly pressed against the upper end surface of the rim material 400, and the lower clamping component 221 can rotatably pass through the clamping and abdicating slot to be tightly pressed against the lower end surface of the rim material 400. In this embodiment, the clamping and relieving groove is composed of an upper clamping and relieving groove 111 and a lower clamping and relieving groove 112, so as to reduce the opening area of the gear train panel 110 and ensure the structural strength of the gear train panel 110. In some other embodiments, the upper and lower retention- relief slots 111, 112 may also be integrally connected to each other.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the scope of the present invention.
Claims (9)
1. The scroll saw cutting device is characterized by comprising a scroll saw cutting mechanism and an edge material clamping and collecting mechanism;
the wire saw cutting mechanism comprises a gear train panel, a cutting running gear train and a diamond wire saw, wherein the cutting running gear train is arranged on the gear train panel, a clamping and abdicating groove is formed in the gear train panel, and the diamond wire saw is annularly arranged in a wire groove of the cutting running gear train;
the rim charge clamping and collecting mechanism is positioned on one side of the gear train panel back to the cutting running gear train and comprises an upper clamping unit, a lower clamping unit and a lifting unit;
the lifting unit is connected with the upper clamping unit and is used for driving the upper clamping mechanism to ascend or descend;
the upper clamping unit comprises an upper clamping assembly and a horizontal displacement driving assembly, the horizontal displacement driving assembly is connected with the upper clamping assembly, and the upper clamping assembly can horizontally penetrate through the clamping abdicating groove and is arranged above the upper end face of the rim charge;
the centre gripping unit includes centre gripping subassembly and rotary displacement drive assembly down, the centre gripping subassembly is rotatable to be fixed in on the train panel down, centre gripping subassembly under rotary displacement drive assembly's flexible end is connected, and lower centre gripping subassembly is rotatable to pass centre gripping groove of stepping down and rim charge terminal surface top tightly.
2. The wire saw cutting device according to claim 1, wherein the scrap collecting mechanism further comprises a lifting slider, a horizontal slide rail and a horizontal slider, the lifting slider is sleeved on the lifting unit, the horizontal slide rail is connected with the lifting slider, the horizontal slider is arranged on the horizontal slide rail, and the upper clamping assembly is fixed on the horizontal slider.
3. The wire saw cutting device according to claim 2, wherein the lifting unit is a rodless cylinder, and the lifting slider is sleeved on a piston of the rodless cylinder; or the lifting unit is one of a hydraulic cylinder, a linear push rod motor and a ball screw, and the lifting slide block is connected with the lifting end of the lifting unit.
4. The wiresaw cutting apparatus of claim 1, wherein the upper clamp assembly has two puller blocks on a side facing the cutting run train.
5. The wiresaw cutting apparatus of claim 1, wherein the lower clamp assembly is hingedly connected to a sidewall of the clamp relief slot.
6. The wiresaw cutting apparatus of claim 1, wherein the telescoping end of the rotary displacement drive assembly is hingedly connected to the lower clamp assembly.
7. The wiresaw cutting apparatus of claim 1, wherein the lower clamp assembly has two puller blocks on a side facing the cutting run train.
8. The wiresaw cutting apparatus of claim 1, wherein the horizontal displacement drive assembly and the rotary displacement drive assembly are one of a pneumatic cylinder, a hydraulic cylinder, or a linear push rod motor.
9. The wire saw cutting device according to claim 1, wherein the clamping relief groove comprises an upper clamping relief groove and a lower clamping relief groove, the upper clamping assembly can horizontally penetrate through the upper clamping relief groove to be tightly pressed against the upper end face of the rim material, and the lower clamping assembly can rotatably penetrate through the clamping relief groove to be tightly pressed against the lower end face of the rim material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022124481.0U CN213648194U (en) | 2020-09-24 | 2020-09-24 | Scroll saw cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022124481.0U CN213648194U (en) | 2020-09-24 | 2020-09-24 | Scroll saw cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213648194U true CN213648194U (en) | 2021-07-09 |
Family
ID=76697981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022124481.0U Active CN213648194U (en) | 2020-09-24 | 2020-09-24 | Scroll saw cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213648194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112157832A (en) * | 2020-09-24 | 2021-01-01 | 福州天瑞线锯科技有限公司 | Scroll saw cutting device |
-
2020
- 2020-09-24 CN CN202022124481.0U patent/CN213648194U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112157832A (en) * | 2020-09-24 | 2021-01-01 | 福州天瑞线锯科技有限公司 | Scroll saw cutting device |
| CN112157832B (en) * | 2020-09-24 | 2024-04-30 | 福州天瑞线锯科技有限公司 | Wire saw cutting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112157832A (en) | Scroll saw cutting device | |
| CN111376393A (en) | Single silicon crystal bar cutting and grinding all-in-one machine | |
| CN212502888U (en) | Bar-shaped aluminum alloy stacking device | |
| CN215152383U (en) | Cutting device for processing plastic packaging bag | |
| CN113060374B (en) | Vest bag folding equipment | |
| CN213648194U (en) | Scroll saw cutting device | |
| CN109866951A (en) | A kind of high speed bottom sealed plastic packaging machine | |
| CN212471980U (en) | Single silicon crystal bar cutting and grinding all-in-one machine | |
| CN213829771U (en) | Squaring machine silicon crystal bar clamping device | |
| CN209367498U (en) | A kind of automatic material receptacle | |
| CN115520426A (en) | Packaging equipment applied to logistics transportation piece bundling | |
| CN212286827U (en) | Automatic clamping type drilling and milling machine | |
| CN213257553U (en) | Automatic feeding and discharging mechanism capable of achieving accurate positioning for thread grinder | |
| CN209504336U (en) | A kind of transverse cutting mechanism of guillotine in length and breadth | |
| CN220388895U (en) | Processing device of suitcase | |
| CN203592758U (en) | Side face covering machine of packaging box | |
| CN217598931U (en) | Cover tyre packaging equipment with height-adjustable operating platform | |
| CN114559569B (en) | Method for collecting vertical cutting edge skin of monocrystalline silicon | |
| CN218842713U (en) | Adjustable edge trimmer | |
| CN218776776U (en) | Workstation for wood cutting | |
| CN212945785U (en) | Novel square steel cutting machine | |
| CN209380094U (en) | Noble metal laser automatic cutter | |
| CN221216120U (en) | Industrial robot raw material conveying device based on remote control | |
| CN220372844U (en) | Leather pretreatment device for luggage processing | |
| CN218753699U (en) | Quick bunching device of packing box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |