A telescopic feeding device

Abstract

The present application relates to a kind of telescopic feeding equipment, comprising: first telescopic mechanism, material frame mechanism and second telescopic mechanism, wherein: in first telescopic mechanism still be provided with first slider, second slider and third slider, by first drive source drive synchronous telescopic sliding, realize multi-section telescopic, in material frame mechanism setting bearing assembly and clamping assembly, bearing assembly is connected with third slider, first telescopic mechanism drives material frame mechanism to slide, clamping assembly is slidably arranged on bearing assembly, the sliding direction of clamping assembly is same with the sliding direction of material frame mechanism, clamping assembly is used to clamp material, setting material frame mechanism can support material, prevent material from falling off in the process of feeding, second telescopic mechanism is fixed on the bearing assembly, the output end of second telescopic mechanism is connected with clamping assembly, second telescopic mechanism promotes clamping assembly and extends from bearing assembly, realize the two-stage feeding demand of material.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic manufacturing technology, and in particular to a telescopic feeding device. Background Technology

[0002] The production process of silicon wafers is as follows: first, ingots are cast in an ingot furnace to form crystal ingots; then, the crystal ingots are squared on a squaring machine to form crystal rods; then, the crystal rods are bonded to a crystal holder; and finally, the crystal holders carrying the crystal rods are sliced ​​on a slicing machine to produce silicon wafers.

[0003] In traditional processes, manual loading and unloading of machine tools is often used. This method is very suitable when the products are relatively simple and the production capacity is not high. However, with social progress and development, the rapid advancement of technology, and the accelerated pace of product updates, manual loading and unloading of machine tools has revealed many shortcomings and weaknesses. Using manual labor increases labor intensity, is prone to workplace accidents, and has relatively low efficiency. Furthermore, the quality stability of products loaded and unloaded manually is insufficient and cannot meet the needs of mass production.

[0004] With the development of automation, existing technologies have gradually replaced manual labor with automated equipment. For example, CN117021392A, entitled "An Automated Wafer Loading and Unloading Device," provides a crystal rod feeding device that achieves automated wafer loading and unloading through a crystal tray assembly. By replacing manual labor with automation, it improves efficiency and productivity, ensures accuracy, and replaces general gripping with a crystal tray assembly. It combines the advantages of the crystal tray assembly with the flexibility of a robotic arm, enabling efficient and precise operation.

[0005] However, existing loading and unloading equipment achieves a short feeding stroke through a single drive mechanism. In actual use, since the slicer needs to work in a closed environment, the actual feeding stroke is relatively long, reaching at least 3 meters, which existing telescopic feeding equipment cannot achieve. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the telescopic feeding device in the prior art cannot meet the long-stroke feeding requirements, and to provide a telescopic feeding device with multi-stage telescopic feeding function. In addition, during the first stage of feeding, it can not only realize multi-stage telescopic feeding, but also support the material to prevent the material from falling off during the feeding process, so as to achieve stable feeding over long distances.

[0007] To solve the above-mentioned technical problems, the present invention provides a telescopic feeding device, comprising:

[0008] A first telescopic mechanism includes a first drive source, a first slider, a second slider, and a third slider. A first transmission component is disposed between the first drive source and the first slider, and the first transmission component drives the first slider to slide. A second transmission component is disposed between the first slider and the second slider, and the second transmission component drives the second slider to slide on the first slider. A third transmission component is disposed between the second slider and the third slider, and the third transmission component drives the third slider to slide on the second slider. The sliding directions of the first slider, the second slider, and the third slider are the same, and they slide synchronously driven by the first drive source.

[0009] A material frame mechanism includes: a carrying component and a clamping component. The carrying component is connected to the third slider. The first telescopic mechanism drives the material frame mechanism to slide. The clamping component is slidably disposed on the carrying component. The sliding direction of the clamping component is the same as the sliding direction of the material frame mechanism. The clamping component is used to clamp materials.

[0010] A second telescopic mechanism is fixed to the bearing assembly. The output end of the second telescopic mechanism is connected to the clamping assembly. The second telescopic mechanism pushes the clamping assembly to extend out of the bearing assembly.

[0011] In one embodiment of the present invention, the first transmission component includes:

[0012] A transmission pulley set includes a driving pulley, a driven pulley, and a timing belt. The driving pulley is connected to the first drive source, and the timing belt is sleeved on the driving pulley and the driven pulley.

[0013] The gear is coaxially connected to the driven wheel, and the driven wheel drives the gear to rotate synchronously;

[0014] A rack meshes with the gear, and the rack is disposed on the first slider.

[0015] In one embodiment of the present invention, both the second transmission component and the third transmission component are sprocket-chain transmission components;

[0016] The second transmission assembly includes: a first sprocket disposed on the first slider and a first chain sleeved outside the first sprocket, one end of the first chain being connected to the first slider and the other end of the first chain being connected to the second slider;

[0017] The third transmission assembly includes: a second sprocket disposed on the second slider and a second chain sleeved outside the second sprocket, one end of the second chain being connected to the second slider and the other end of the second chain being connected to the third slider.

[0018] In one embodiment of the present invention, the first telescopic mechanism further includes two sets of wire harness brackets, which are respectively connected to the first slider and the second slider, and a set of rollers for clamping the wire harness and the air tube are provided on the wire harness brackets.

[0019] In one embodiment of the present invention, the carrier component includes:

[0020] The connecting plate is connected to the third slider;

[0021] The material loading frame, disposed on the connecting plate, includes an extension frame, a support column connected to the extension frame, and a support plate connected to the support column.

[0022] In one embodiment of the present invention, the bearing assembly further includes a lifting assembly disposed in the material loading frame, the lifting assembly comprising:

[0023] Lifting drive source:

[0024] A connecting rod, one end of which is connected to the output end of the lifting drive source, the lifting drive source drives the connecting rod to swing in the horizontal direction;

[0025] A rotating shaft, with the other end of the connecting rod sleeved on the rotating shaft, the connecting rod swinging to drive the rotating shaft to rotate;

[0026] A lifting arm is sleeved on the rotating shaft, and the lifting arm is driven by the rotating shaft to swing in the vertical direction;

[0027] A slide bar, connected to the lifting arm, is used to support the material, which slides along the extension direction of the slide bar.

[0028] In one embodiment of the present invention, the bearing assembly further includes a bearing frame disposed on the material frame, the bearing frame being slidably disposed on an external force-bearing member.

[0029] In one embodiment of the present invention, the clamping assembly includes:

[0030] The base is connected to the second telescopic mechanism;

[0031] Two clamping arms are slidably mounted on the base;

[0032] A clamping drive source is fixedly mounted on the base; the output end of the clamping drive source is connected to the two clamping arms, and the clamping drive source drives the two clamping arms to move towards or in opposite directions;

[0033] A connecting pin is provided on the clamping arm, and the connecting pin can be inserted into the connecting hole of the material.

[0034] In one embodiment of the present invention, the second telescopic mechanism includes:

[0035] Second driving source;

[0036] A screw is connected to the second drive source, and the second drive source drives the screw to rotate.

[0037] The slide is threadedly connected to the screw, and the rotation of the screw causes the slide to move horizontally.

[0038] In one embodiment of the present invention, a take-up mechanism is further included, the take-up mechanism comprising: a take-up roller and a torque motor for driving the take-up roller to rotate.

[0039] The technical solution of the present invention has the following advantages over the prior art:

[0040] The telescopic feeding device of the present invention is provided with a first telescopic mechanism and a second telescopic mechanism working together to achieve multi-stage feeding. The first telescopic mechanism is provided with a first slider, a second slider and a third slider that slide relative to each other to achieve multi-segment feeding, thereby meeting the needs of long-distance feeding.

[0041] Furthermore, in the first telescopic mechanism, a first transmission component, a second transmission component, and a third transmission component are set to realize the transmission of power, thereby enabling the first slider, the second slider, and the third slider to move synchronously driven by the same drive source. While satisfying multi-stage telescopic feeding, the number of drive sources can be reduced and the feeding efficiency can be improved.

[0042] Meanwhile, a first telescopic mechanism is first set to drive the material frame mechanism to move, and then the first telescopic mechanism is set to push the material out of the material frame mechanism. The material frame mechanism can carry the material, and when the first telescopic mechanism extends, it can prevent the material from falling off, reduce the distance of the material being clamped and suspended in the air, and ensure the stability of the material transportation. Attached Figure Description

[0043] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0044] Figure 1 This is a schematic diagram of the overall structure of the telescopic feeding device of the present invention;

[0045] Figure 2 This is a schematic diagram of the structure of the first telescopic mechanism of the present invention;

[0046] Figure 3 This is a schematic diagram of the structure of the first transmission component of the present invention;

[0047] Figure 4 This is a schematic diagram of the structure of the second and third transmission components of this device;

[0048] Figure 5 This is a schematic diagram of the material frame mechanism of the present invention;

[0049] Figure 6 This is a schematic diagram of the structure of the load-bearing component of the present invention;

[0050] Figure 7 This is a schematic diagram of the clamping assembly of the present invention;

[0051] Figure 8 This is a schematic diagram of the structure of the second telescopic mechanism of the present invention;

[0052] Figure 9 This is a schematic diagram of the winding mechanism of the present invention.

[0053] Explanation of reference numerals in the accompanying drawings: 1. First telescopic mechanism; 11. First drive source; 12. First slider; 13. Second slider; 14. Third slider; 15. First transmission assembly; 151. Transmission wheel set; 152. Gear; 153. Rack; 16. Second transmission assembly; 161. First sprocket; 162. First chain; 17. Third transmission assembly; 171. Second sprocket; 172. Second chain; 18. Wire harness bracket; 2. Material frame mechanism; 21. Bearing 211. Loading assembly; 212. Connecting plate; 213. Loading frame; 214. Lifting drive source; 215. Connecting rod; 216. Lifting arm; 217. Slide rod; 218. Bearing frame; 22. Clamping assembly; 221. Base; 222. Clamping arm; 223. Clamping drive source; 224. Connecting pin; 3. Second telescopic mechanism; 31. Second drive source; 32. Screw; 33. Slide table; 4. Take-up mechanism; 41. Take-up roller; 42. Torque motor. Detailed Implementation

[0054] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0055] Reference Figure 1 As shown, the present invention discloses a telescopic feeding device, including: a first telescopic mechanism 1, a material frame mechanism 2, and a second telescopic mechanism 3, wherein: the first telescopic mechanism 1 is connected to the material frame mechanism 2, and the first telescopic mechanism 1 can drive the material frame mechanism 2 to move as a whole. The material frame mechanism 2 is used to carry and clamp materials. When the first telescopic mechanism 1 extends, it can prevent materials from falling off, reduce the distance of material clamping and suspended movement, and ensure the stability of material transportation. The second telescopic mechanism 3 is disposed in the material frame mechanism 2 and can push materials out of the material frame mechanism 2 to realize multi-stage feeding and meet the needs of long-distance feeding.

[0056] Reference Figure 2As shown, in this embodiment, the first telescopic mechanism 1 includes a bracket, and a first drive source 11, a first slider 12, a second slider 13, and a third slider 14 are disposed on the bracket. A first transmission assembly 15 is disposed between the first drive source 11 and the first slider 12, and the first transmission assembly 15 drives the first slider 12 to slide. A second transmission assembly 16 is disposed between the first slider 12 and the second slider 13, and the second transmission assembly 16 drives the second slider 13 to slide on the first slider 12. A third transmission assembly 16 is disposed between the second slider 13 and the third slider 14. The third transmission component 17 drives the third slider 14 to slide on the second slider 13. The sliding directions of the first slider 12, the second slider 13, and the third slider 14 are the same, and they are all driven synchronously by the first drive source 11. In the first telescopic mechanism 1, the first transmission component 15, the second transmission component 16, and the third transmission component 17 are set to realize the transmission of power, thereby realizing that the first slider 12, the second slider 13, and the third slider 14 are driven synchronously by the same drive source. While satisfying multi-segment telescopic feeding, the number of drive sources can be reduced and the feeding efficiency can be improved.

[0057] As shown in the figure, in order to ensure the balance of the first telescopic mechanism 1, in this embodiment, the first telescopic mechanism 1 includes two parallel first sliders 12, two parallel second sliders 13, and a third slider 14. The two ends of the third slider 14 are mounted on the two second sliders 13. The third slider 14 is driven to move synchronously by the two second sliders 13. In order to realize the power transmission between the first drive source 11 and the two first sliders 12, two sets of first transmission components 15 are provided. In order to realize the power transmission between the two first sliders 12 and the two second sliders 13, two sets of second transmission components 16 are provided. In order to realize the power transmission between the two second sliders 13 and the third slider 14, two sets of third transmission components 17 are provided.

[0058] In actual feeding, for example, the first drive source 11 drives the first slider 12 to move 10cm via the first transmission component 15, then the second slider 13 is also driven to move 10cm via the second transmission component 16, and similarly, the third slider 14 is driven to move 10cm via the third transmission component 17. Thus, the material frame mechanism 2 is pushed out 30cm. This not only realizes multi-segment telescopic feeding of the material frame mechanism 2, but also reduces the feeding time compared to a single-segment feeding device. If a single-segment feeding device is used to meet the material feeding requirement of 30cm, the drive source needs to drive the slider to move 30cm. However, in this application, the first drive source 11 only needs to drive the first slider 12 to move 10cm via the first transmission component 15, which shortens the original feeding time by 1 / 3, thereby improving the feeding efficiency.

[0059] In this embodiment, the purpose of providing the first transmission assembly 15 is to transmit the power of the first drive source 11 to the first slider 12, as shown in the figure. Figure 3 As shown, the first transmission assembly 15 includes: a transmission wheel set 151, a gear 152, and a rack 153. The first drive source 11 is a servo motor. The transmission wheel set 151 includes a driving wheel, a driven wheel, and a synchronous belt. The driving wheel is connected to the first drive source 11. The synchronous belt is sleeved on the driving wheel and the driven wheel. The gear 152 is coaxially connected to the driven wheel. The transmission wheel set 151 can transmit the rotational power of the servo motor to the gear 152. The first drive source 11 drives the gear 152 to rotate. The rack 153 is set to mesh with the gear 152. Since the position of the gear 152 is fixed, after the gear 152 meshes with the rack 153, its power is transmitted to the rack 153, which can drive the rack 153 to move horizontally. The rack 153 is set on the first slider 12, thereby realizing the horizontal movement of the first slider 12.

[0060] In other embodiments, a linear motor module, a lead screw module, or other transfer mechanism may be provided to drive the first slider 12 to move.

[0061] In this embodiment, the power source of the second transmission component 16 is the first slider 12, which is required to drive the second slider 13 to move through the second transmission component 16. The power source of the third transmission component 17 is the second slider 13, which is required to drive the third slider 14 to move through the third transmission component 17. Therefore, the second transmission component 16 and the third transmission component 17 can be the same power transmission structure.

[0062] Reference Figure 4 As shown, both the second transmission assembly 16 and the third transmission assembly 17 are sprocket-chain transmission assemblies. The second transmission assembly 16 includes: a first sprocket 161 disposed on the first slider 12 and a first chain 162 sleeved on the first sprocket 161. One end of the first chain 162 is connected to the first slider 12, and the other end of the first chain 162 is connected to the second slider 13. Since one end of the first sprocket 161 and the first chain 162 are fixed on the first slider 12, when the first drive source 11 drives the first slider 12 to move, the second slider 13 can be pulled synchronously through the first sprocket 161 and the first chain 162.

[0063] Similarly, the third transmission assembly 17 includes: a second sprocket 171 disposed on the second slider 13 and a second chain 172 sleeved on the second sprocket 171. One end of the second chain 172 is connected to the second slider 13, and the other end of the second chain 172 is connected to the third slider 14. Since one end of the second sprocket 171 and the second chain 172 are fixed on the second slider 13, when the first slider 12 drives the second slider 13 to move, the second sprocket 171 and the second chain 172 can synchronously pull the third slider 14 to move.

[0064] In this embodiment, the material frame mechanism 2 is designed to both carry the material and clamp it, ensuring that the material can be pushed out by the second telescopic mechanism 3. (Refer to...) Figure 5 As shown, the material frame mechanism 2 includes a supporting component 21 and a clamping component 22. The supporting component 21 is used to support the material and is connected to the third slider 14. The first telescopic mechanism 1 drives the material frame mechanism 2 to slide. The clamping component 22 is used to clamp the material and is slidably disposed on the supporting component 21. The clamping component 22 clamps the material on the innermost side of the supporting component 21. The second telescopic mechanism 3 is fixed on the supporting component 21. The output end of the second telescopic mechanism 3 is connected to the clamping component 22. The second telescopic mechanism 3 pushes the clamping component 22 to extend out of the supporting component 21, thereby enabling the material to be sent out of the material frame mechanism 2. The sliding direction of the clamping component 22 is set to be the same as the sliding direction of the material frame mechanism 2, thereby realizing multi-stage feeding.

[0065] Reference Figure 6 As shown, the supporting component 21 includes a connecting plate 211 and a material loading frame 212, wherein the connecting plate 211 is connected to the third slider 14, the material loading frame 212 is disposed on the connecting plate 211, the material loading frame 212 has an extension frame, a support column connected to the extension frame, and a support plate connected to the support column, and the material is placed in the material loading frame 212, and the material can be supported by the material loading frame 212.

[0066] Specifically, in this embodiment, material needs to be pushed out from the material frame mechanism 2. To prevent excessive friction between the material and the material frame 212 during the pushing process, the bearing assembly 21 further includes a lifting assembly disposed within the material frame 212. The lifting assembly includes: a lifting drive source 213, a connecting rod 214, a rotating shaft 215, a lifting arm 216, and a sliding rod 217. The lifting drive source 213 is a cylinder drive source, applying a horizontal thrust. One end of the connecting rod 214 is connected to the output end of the lifting drive source 213, causing the connecting rod 214 to swing horizontally. The other end of the connecting rod 214 is sleeved on the rotating shaft 215. The position of the rotating shaft 215 is fixed. When the connecting rod 214 swings, it drives the rotating shaft 215 to rotate. The lifting arm 216 is also sleeved on the rotating shaft 215. The lifting arm 216 is driven by the rotating shaft 215 to swing in the vertical direction, thereby providing a vertical thrust. The sliding rod 217 is connected to the lifting arm 216 and is used to support the material. It can drive the material to be lifted in the material frame mechanism 2. The material is clamped by the clamping assembly 22. Finally, the material is pushed out by the second telescopic mechanism 3 along the extension direction of the sliding rod 217.

[0067] Specifically, in this embodiment, in order to achieve stable support for the material, at least two sets of lifting components are set up to lift the material simultaneously.

[0068] In this embodiment, instead of using a traditional lifting device located directly below the material frame mechanism 2 to support the material lifting, the lifting component is located on the side of the material frame mechanism 2. A lifting drive source 213 applies a horizontal force, which is converted into a vertical lifting force through the cooperation of the connecting rod 214, rotating shaft 215, and lifting arm 216. Only a sliding rod 217 needs to be installed at the bottom of the material frame mechanism 2, which reduces the height of the material frame in the vertical direction and provides sufficient height space for the material.

[0069] Specifically, as mentioned above, the telescopic feeding device in this embodiment is mainly for feeding crystal trays and crystal rods. Therefore, the material frame mechanism 2 carries crystal trays and crystal rods. In this embodiment, after the first telescopic mechanism 1 pushes out the material frame mechanism 2 carrying crystal trays and crystal rods, the crystal trays and crystal rods have a large weight, which will inevitably affect the center of gravity of the entire device. At the same time, it will also put a large pressure on the slider in the first telescopic mechanism 1. Therefore, in this embodiment, taking into full consideration the center of gravity and load-bearing capacity of the device, the load-bearing component 21 also includes a load-bearing frame 218 set on the material frame 212. The load-bearing frame 218 is suspended on an external force-bearing component. When the first telescopic mechanism 1 pushes the material frame mechanism 2, the load-bearing frame 218 can slide on the external force-bearing component. That is to say, the material frame mechanism 2 in this embodiment will not only be subjected to the horizontal thrust of the first telescopic mechanism 1, but also to the supporting force of the external force-bearing component. The supporting force can be balanced with the weight of the material frame mechanism and the material inside the material frame mechanism 2, ensuring the stable operation of the entire telescopic feeding device.

[0070] Reference Figure 7 As shown, the clamping assembly 22 includes: a base 221, two clamping arms 222, and a clamping drive source 223. The base 221 is slidably disposed on the bearing assembly 21 and connected to the second telescopic mechanism 3. The two clamping arms 222 are slidably disposed on the base 221. The clamping drive source 223 is fixedly disposed on the base 221. The output end of the clamping drive source 223 is connected to the two clamping arms 222. The clamping drive source 223 drives the two clamping arms 222 to move in opposite directions, thereby achieving the clamping of the material. In this embodiment, in order to ensure the stability of the material clamping, a connecting pin 224 is also provided on the clamping arm 222. The connecting pin 224 can be inserted into the connecting hole of the material. For example, if the crystal tray and crystal rod are used as materials, a connecting hole can be opened on the crystal tray. The clamping assembly 22 clamps the crystal tray and inserts the connecting pin 224 into the connecting hole.

[0071] Reference Figure 8 As shown, in this embodiment, the second telescopic mechanism 3 is set as a lead screw slide, including a second drive source 31, a screw 32 connected to the second drive source 31, and a slide 33 threadedly connected to the screw 32. The second drive source 31 drives the screw 32 to rotate, and the rotation of the screw 32 drives the slide 33 to move horizontally. The lead screw slide 33 is a relatively common horizontal transfer mechanism. In other embodiments, the second telescopic mechanism 3 can also be set as a linear motor module, a cylinder module, etc., as long as it can output thrust in the horizontal direction.

[0072] In this embodiment, after the material frame mechanism 2 is pushed out by the first telescopic mechanism 1, a lifting component, a clamping component 22, and a second telescopic mechanism 3 are provided in the material frame mechanism 2. Therefore, the material frame mechanism 2 needs to be connected to air pipes and electrical circuits. (Refer to...) Figure 1 and Figure 9 As shown, the telescopic feeding device in this embodiment further includes a take-up mechanism 4, which includes a take-up roller 41 and a torque motor 42 that drives the take-up roller 41 to rotate. The take-up roller 41 is used to take up the air pipe and the wire. When the first telescopic mechanism 1 pushes the material frame mechanism 2 to extend, the torque motor 42 rotates passively, which can provide stable tension and realize the stability of the air pipe and the wire being laid out. When the first telescopic mechanism 1 drives the material frame mechanism 2 to retract, the torque motor 42 rotates actively to retract the air pipe and the wire.

[0073] Specifically, during the extension and retraction of the material frame mechanism 2, in order to support the air pipe and the electrical wire, refer to... Figure 2 As shown, the first telescopic mechanism 1 also includes two sets of wire harness brackets, which are respectively connected to the first slider 12 and the second slider 13. Roller sets for clamping wire harnesses and air tubes are provided on the wire harness brackets.

[0074] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A telescopic feeding device, characterized in that, include: A first telescopic mechanism includes a first drive source, a first slider, a second slider, and a third slider. A first transmission component is disposed between the first drive source and the first slider, and the first transmission component drives the first slider to slide. A second transmission component is disposed between the first slider and the second slider, and the second transmission component drives the second slider to slide on the first slider. A third transmission component is disposed between the second slider and the third slider, and the third transmission component drives the third slider to slide on the second slider. The sliding directions of the first slider, the second slider, and the third slider are the same, and they slide synchronously driven by the first drive source. A material frame mechanism includes: a carrying component and a clamping component. The carrying component is connected to the third slider. The first telescopic mechanism drives the material frame mechanism to slide. The clamping component is slidably disposed on the carrying component. The sliding direction of the clamping component is the same as the sliding direction of the material frame mechanism. The clamping component is used to clamp materials. A second telescopic mechanism is fixed to the bearing assembly. The output end of the second telescopic mechanism is connected to the clamping assembly. The second telescopic mechanism pushes the clamping assembly to extend out of the bearing assembly.

2. The telescopic feeding device according to claim 1, characterized in that: The first transmission assembly includes: A transmission pulley set includes a driving pulley, a driven pulley, and a timing belt. The driving pulley is connected to the first drive source, and the timing belt is sleeved on the driving pulley and the driven pulley. The gear is coaxially connected to the driven wheel, and the driven wheel drives the gear to rotate synchronously; A rack meshes with the gear, and the rack is disposed on the first slider.

3. The telescopic feeding device according to claim 1, characterized in that: Both the second transmission assembly and the third transmission assembly are sprocket-chain transmission assemblies; The second transmission assembly includes: a first sprocket disposed on the first slider and a first chain sleeved outside the first sprocket, one end of the first chain being connected to the first slider and the other end of the first chain being connected to the second slider; The third transmission assembly includes: a second sprocket disposed on the second slider and a second chain sleeved outside the second sprocket, one end of the second chain being connected to the second slider and the other end of the second chain being connected to the third slider.

4. The telescopic feeding device according to claim 1, characterized in that: The first telescopic mechanism also includes two sets of wire harness brackets, which are respectively connected to the first slider and the second slider. Roller sets for clamping the wire harness and the air tube are provided on the wire harness brackets.

5. The telescopic feeding device according to claim 1, characterized in that: The carrier component includes: The connecting plate is connected to the third slider; The material loading frame, disposed on the connecting plate, includes an extension frame, a support column connected to the extension frame, and a support plate connected to the support column.

6. The telescopic feeding device according to claim 5, characterized in that: The bearing assembly further includes a lifting assembly disposed in the loading frame, the lifting assembly comprising: Lifting drive source: A connecting rod, one end of which is connected to the output end of the lifting drive source, the lifting drive source drives the connecting rod to swing in the horizontal direction; A rotating shaft, with the other end of the connecting rod sleeved on the rotating shaft, the connecting rod swinging to drive the rotating shaft to rotate; A lifting arm is sleeved on the rotating shaft, and the lifting arm is driven by the rotating shaft to swing in the vertical direction; A slide bar, connected to the lifting arm, is used to support the material, which slides along the extension direction of the slide bar.

7. The telescopic feeding device according to claim 5, characterized in that: The load-bearing assembly also includes a load-bearing frame disposed on the material loading frame, the load-bearing frame being slidably disposed on an external force-bearing component.

8. The telescopic feeding device according to claim 1, characterized in that: The clamping assembly includes: The base is connected to the second telescopic mechanism; Two clamping arms are slidably mounted on the base; A clamping drive source is fixedly mounted on the base; the output end of the clamping drive source is connected to the two clamping arms, and the clamping drive source drives the two clamping arms to move towards or in opposite directions; A connecting pin is provided on the clamping arm, and the connecting pin can be inserted into the connecting hole of the material.

9. The telescopic feeding device according to claim 1, characterized in that: The second telescopic mechanism includes: Second driving source; A screw is connected to the second drive source, and the second drive source drives the screw to rotate. The slide is threadedly connected to the screw, and the rotation of the screw causes the slide to move horizontally.

10. The telescopic feeding device according to claim 1, characterized in that: It also includes a take-up mechanism, which comprises a take-up roller and a torque motor that drives the take-up roller to rotate.

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