A feeding device

Abstract

The present invention provides a material receiving and feeding mechanism and a material receiving and feeding device having the material receiving and feeding mechanism. The material receiving and feeding mechanism includes a material receiving and feeding fixed seat, a servo motor, an active transmission wheel, a passive transmission wheel and a clamping cylinder, wherein the servo motor and the clamping cylinder are fixedly assembled on the material receiving and feeding fixed seat, the driving shaft of the servo motor is connected to the active transmission wheel to drive the active transmission wheel to rotate, the piston rod of the clamping cylinder is connected to the passive transmission wheel, and can drive the passive transmission wheel to approach or move away from the active transmission wheel to clamp or release the strip passing between the active transmission wheel and the passive transmission wheel. The material feeding skewness caused by the lateral bending of the strip can be effectively avoided, the accumulated error of the mechanism feeding is released, and automatic zeroing correction is realized; no manual operation is required, and the operation efficiency is fast and the precision is good.

Description

Technical Field

[0001] The invention relates to the field of strip material processing devices, and in particular to a material receiving and feeding mechanism and a material receiving and feeding device having the material receiving and feeding mechanism. Background Art

[0002] In industrial production and processing, strip materials (i.e., strip-shaped raw materials) of different categories and specifications are used. For the packaging of the strip materials, they are generally rolled up for storage and transportation; during subsequent processing, they are also placed on a rotatable material tray for feeding. The extraction of the strip material (i.e., feeding) is generally achieved by a feeding and receiving mechanism with a transmission wheel clamping transmission. In the prior art, the active transmission wheel and the driven transmission wheel of the feeding and receiving mechanism used to clamp the strip material are always kept in a clamped state. With this arrangement, the cumulative transmission error of the strip material is large, and it is easy to deviate, requiring frequent manual corrections, cumbersome operations, and affecting work efficiency. Summary of the invention

[0003] To this end, the present invention provides a material receiving and feeding mechanism and a material receiving and feeding device having the material receiving and feeding mechanism, which can effectively solve the above-mentioned problems.

[0004] To achieve the above purpose, the technical solution provided by the present invention is as follows:

[0005] A material receiving and feeding mechanism comprises a material receiving and feeding fixed seat, a servo motor, an active transmission wheel, a driven transmission wheel and a clamping cylinder. The servo motor and the clamping cylinder are fixedly assembled on the material receiving and feeding fixed seat. The driving shaft of the servo motor is connected to the active transmission wheel to drive the active transmission wheel to rotate. The piston rod of the clamping cylinder is connected to the driven transmission wheel and can drive the driven transmission wheel to approach or move away from the active transmission wheel to clamp or loosen the strip passing between the active transmission wheel and the driven transmission wheel.

[0006] Furthermore, a first elastic member is provided on the material receiving and feeding fixed seat, and the first elastic member acts on the driven transmission wheel and applies an elastic force to the driven transmission wheel to make it move away from the driving transmission wheel.

[0007] Furthermore, the material receiving and feeding fixed seat has a first mounting frame and a second mounting frame located above the first mounting frame, the active transmission wheel can be rotatably mounted on the first mounting frame, the first mounting frame has an upper surface tangent to the active transmission wheel, and the second mounting frame is provided with a vertically arranged long slot hole, and the driven transmission wheel can be raised and lowered and movably sleeved in the long slot hole.

[0008] A material receiving and feeding device comprises a material coiling mechanism, a material receiving and feeding mechanism and a cutting mechanism, wherein the material receiving and feeding mechanism corresponds to the output end of the material coiling mechanism to extract the strip material of the material coiling mechanism and output it, and the cutting mechanism corresponds to the output end of the material receiving and feeding mechanism to cut the output strip material; the material receiving and feeding mechanism is the material receiving and feeding mechanism described above.

[0009] Furthermore, the winding mechanism includes a winding seat, a rotating shaft, a sleeve, a material disc, a strip clamping disc and a second elastic member, the rotating shaft is rotatably arranged on the winding seat and has an exposed first end, the first end of the rotating shaft is provided with a fixing pin protruding from the outer circumferential surface of the rotating shaft, the sleeve is provided with a guide notch and a card interface connected to the guide notch and perpendicular to the axial direction of the sleeve, the sleeve is sleeved on the first end of the rotating shaft, the fixing pin on the rotating shaft corresponds to the card interface and is snap-fitted in the card interface through the guidance of the guide notch, the material disc is fixedly sleeved on the sleeve, the strip clamping disc is detachably fixedly sleeved on the sleeve, and is tightly attached to the outer side of the material disc to fix the strip on the material disc; the second elastic member is arranged on the rotating shaft and elastically contacts the winding seat.

[0010] Furthermore, a circumferential limiting structure and an axial limiting structure are provided between the shaft sleeve and the material tray. The circumferential limiting structure limits the circumferential relative rotation between the material tray and the shaft sleeve, and the axial limiting structure limits the movement of the material tray along the axial direction of the shaft sleeve.

[0011] Furthermore, the circumferential limiting structure includes an outer circumferential surface of a shaft sleeve in a "D" shape and a center hole of a material tray in a "D" shape. The material tray is sleeved on the "D" shaped outer circumferential surface of the shaft sleeve through the "D" shaped center hole to limit the circumferential relative rotation between the material tray and the shaft sleeve.

[0012] Furthermore, the axial limiting structure includes a contact convex ring protruding along the radial direction of the sleeve and the fixing pin. The inner side of the material tray contacts the contact convex ring of the sleeve. The fixing pin also protrudes from the outer peripheral surface of the sleeve and contacts the outer side of the material tray, thereby limiting the movement of the material tray along the axial direction of the sleeve. The material tray is also provided with a clearance notch for the fixing pin to pass through.

[0013] Furthermore, the strip clamping disc also has a fixing protrusion extending in the axial direction, and corresponding fixing holes are provided on the fixing protrusion and the sleeve. It also includes a fixing handle, and the fixing handle is fixedly inserted into the fixing hole of the fixing protrusion and the fixing hole of the sleeve to achieve detachable fixation of the strip clamping disc.

[0014] Furthermore, the second end of the rotating shaft is also exposed outside the coil fixing seat, and the second elastic member is arranged on the second end of the rotating shaft.

[0015] Furthermore, the cutting mechanism includes a cutting fixed frame, a cutting cylinder, a cutter, a spring block, a spring lever and a spring cylinder. The cutting fixed frame has a carrier whose surface is parallel to the output end of the feeding and receiving mechanism. The cutting cylinder, the spring block, the spring lever and the spring cylinder are all arranged above the carrier. The cutting cylinder drives the cutter to drive the cutter to move up and down, thereby realizing the cutting operation; the spring block is elastically pressed against the surface of the carrier by a third elastic member, the first arm of the spring lever is connected to the spring block, and the spring cylinder corresponds to the upper end of the second arm of the spring lever. The pressure of the spring cylinder on the second arm of the spring lever can drive the spring block to overcome the action of the third elastic member and move up to separate from the carrier.

[0016] The technical solution provided by the present invention has the following beneficial effects:

[0017] The material receiving and feeding mechanism for extracting the strip material adopts a separable active transmission wheel and a driven transmission wheel. Each time the material is fed, the clamping cylinder acts once, that is, the clamping cylinder drives the driven transmission wheel to approach the active transmission wheel once to clamp the strip material. At this time, the servo motor drives the active transmission wheel to rotate for feeding; after the end, the driven transmission wheel is disengaged, that is, the clamping cylinder drives the driven transmission wheel away from the active transmission wheel, avoiding the skew of the feeding caused by the side bending of the strip material, releasing the accumulated error of the mechanism feeding, and realizing automatic zeroing correction; no manual operation is required, and the operation efficiency is fast and the precision is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure shows a three-dimensional structural schematic diagram of the material receiving and feeding mechanism in the embodiment;

[0019] Figure 2 The figure shows a three-dimensional structural schematic diagram of the material receiving and feeding device in the embodiment;

[0020] Figure 3 The figure shows a front view of the material receiving and feeding device in the embodiment;

[0021] Figure 4 The figure shows a partial structural schematic diagram of the coiling mechanism in the embodiment;

[0022] Figure 5 The figure is a schematic diagram of the three-dimensional structure of the coiling mechanism in the embodiment;

[0023] Figure 6 Shown is a cross-sectional view of the coiling mechanism in the embodiment;

[0024] Figure 7 Shown is a front view of the cutting mechanism in the embodiment;

[0025] Figure 8 Shown is a side view of the cutting mechanism in the embodiment. DETAILED DESCRIPTION

[0026] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0028] Reference Figure 1 As shown, this embodiment provides a material receiving and feeding mechanism 20, including a material receiving and feeding fixed base 21, a servo motor 22, an active transmission wheel 23, a passive transmission wheel 25 and a clamping cylinder 24, wherein the servo motor 22 and the clamping cylinder 24 are fixedly assembled on the material receiving and feeding fixed base 21, the driving shaft of the servo motor 22 is connected to the active transmission wheel 23 to drive the active transmission wheel 23 to rotate, the piston rod of the clamping cylinder 24 is connected to the passive transmission wheel 25, and can drive the passive transmission wheel 25 to approach or move away from the active transmission wheel 23, so as to clamp or loosen the belt passing between the active transmission wheel 23 and the passive transmission wheel 25.

[0029] The material receiving and feeding mechanism for extracting the strip material adopts a separable active transmission wheel 23 and a driven transmission wheel 25. Each time the material is fed, the clamping cylinder 24 acts once, that is, the clamping cylinder 24 drives the driven transmission wheel 25 to approach the active transmission wheel 23 once to clamp the strip material, and then the servo motor 22 drives the active transmission wheel 23 to rotate for feeding; after the end, the driven transmission wheel 25 is disengaged, that is, the clamping cylinder 24 drives the driven transmission wheel 25 away from the active transmission wheel 23, avoiding the skewness of the feeding caused by the lateral bending of the strip material, releasing the accumulated error of the feeding mechanism, and realizing automatic zeroing correction; no manual operation is required, and the operation efficiency is fast and the accuracy is good.

[0030] Specifically, in this embodiment, the structure of the driven transmission wheel 25 includes a connecting shaft 251 and a rotating wheel 252 rotatably sleeved on the connecting shaft 251, and the piston rod of the clamping cylinder 24 is fixedly connected to the connecting shaft 251 to achieve the connection between the driven transmission wheel 25 and the clamping cylinder 24. Of course, in other embodiments, the connecting shaft 251 and the rotating wheel 252 can also be set as a fixed connection structure, the outer ring of the bearing is fixed on the piston rod of the clamping cylinder 24, and the connecting shaft 251 of the driven transmission wheel 25 is sleeved on the inner ring of the bearing, so that the corresponding connection can also be achieved.

[0031] Specifically, by controlling the rotation speed and time of the servo motor 22, the transmission length of the strip is also controlled.

[0032] Furthermore, in this embodiment, the material receiving and feeding fixed base 21 has a first mounting frame 211 and a second mounting frame 212 located above the first mounting frame 211, and the active transmission wheel 23 is rotatably mounted on the first mounting frame 211. The first mounting frame 211 has an upper surface 2111 tangent to the active transmission wheel 23, and the outputted belt material can be smoothly outputted through the upper surface 2111 of the first mounting frame 211.

[0033] The driven transmission wheel 25 is movably mounted on the second mounting frame 212. Specifically, a vertically arranged long slot hole 2121 is provided on the second mounting frame 212, and the connecting shaft 251 of the driven transmission wheel 25 is movably sleeved in the long slot hole 2121, and the rotating wheel 252 of the driven transmission wheel 25 can realize independent rotation. Such a configuration has a guiding effect on the lifting and lowering of the driven transmission wheel 25, effectively preventing the driven transmission wheel 25 from abnormal movement deviation, and achieving better accuracy.

[0034] Furthermore, in this embodiment, the receiving and feeding fixed seat 21 is also provided with a first elastic member 26, which acts on the driven transmission wheel 25 and applies an elastic force to the driven transmission wheel 25 to make it move away from the active transmission wheel 23. When the driven transmission wheel 25 needs to move up and disengage from the active transmission wheel 23, the first elastic member 26 can assist the driven transmission wheel 25 to move quickly, and the disengagement effect is better. At the same time, when the driven transmission wheel 25 is pressed down, the pressure applied by the clamping cylinder 24 to the driven transmission wheel 25 must overcome the elastic force of the first elastic member 26. The elastic force applied by the first elastic member 26 to the driven transmission wheel 25 plays an effective buffering role, making the downward movement of the driven transmission wheel 25 (i.e., the movement close to the active transmission wheel 23) more stable.

[0035] Furthermore, in this embodiment, the first elastic member 26 is a spring, the lower end of the spring 26 abuts against the second mounting frame 212, and the upper end abuts against the connecting shaft 251 of the driven transmission wheel 25. The structural connection is simple and will not affect the rotation of the rotating wheel 252 of the driven transmission wheel 25.

[0036] Continue to refer to the attached Figures 2 to 8 As shown, the present embodiment also provides a material receiving and feeding device, including a material winding mechanism 10, the material receiving and feeding mechanism 20 described above, and a cutting mechanism 30, wherein the material receiving and feeding mechanism 20 corresponds to the output end of the material winding mechanism 10 to extract the strip material 1 of the material winding mechanism 10 and output it, and the cutting mechanism 30 corresponds to the output end of the material receiving and feeding mechanism 20 to cut the output strip material 1.

[0037] The material receiving and feeding device is used as an application of the above-mentioned material receiving and feeding mechanism 20 and has the same technical effect as the above-mentioned material receiving and feeding mechanism 20.

[0038] Furthermore, in the present embodiment, the winding mechanism 10 includes a winding fixing seat 11, a rotating shaft 12, a sleeve 16, a material disc 13, a material clamping disc 14 and a second elastic member 18. The rotating shaft 12 is rotatably inserted into the winding fixing seat 11 and has an exposed first end 121. The first end 121 of the rotating shaft 12 is provided with a fixing pin 15 protruding from the outer circumferential surface of the rotating shaft. Specifically, the first end 121 of the rotating shaft 12 is provided with a pin hole (not shown), and the fixing pin 15 is fixedly inserted into the pin hole to realize the setting of the fixing pin 15.

[0039] The shaft sleeve 16 is provided with a guide notch 161 and a clamping interface 162 which is connected to the guide notch 161 and is perpendicular to the axial direction of the shaft sleeve 16. The shaft sleeve 16 is sleeved on the first end 121 of the rotating shaft 12. The fixing pin 15 on the rotating shaft 12 corresponds to the clamping interface 162 and is clamped and matched in the clamping interface 162 through the guidance of the guide notch 161. That is, during installation, the guide notch 161 of the shaft sleeve 16 is aligned with the fixing pin 15 on the rotating shaft 12 and is inserted. When the shaft sleeve 16 is inserted into the clamping interface 162 corresponding to the fixing pin 15, the shaft sleeve 16 is rotated so that the fixing pin 15 is clamped in the clamping interface 162 to fix the shaft sleeve 16. When disassembly is required, the shaft sleeve 16 can be pulled out by rotating the shaft sleeve 16 in the direction so that the fixing pin 15 is separated from the clamping interface 162. The assembly and disassembly operation is simple.

[0040] The material tray 13 is fixedly sleeved on the shaft sleeve 16, and the strip material clamping disk 14 is detachably fixedly sleeved on the shaft sleeve 16, and is tightly attached to the outer side of the material tray 13 to fix the strip material 1 on the material tray 13; when the strip material 1 needs to be replaced, the fixing structure of the strip material clamping disk 14 is released and the strip material clamping disk 14 is removed, and the strip material 1 originally installed on the material tray 13 is taken out, and then the new strip material 1 is loaded onto the material tray 13, and finally the strip material clamping disk 14 is reinstalled on the shaft sleeve 16 and fixed to achieve the installation limit of the strip material 1.

[0041] The second elastic member 18 is arranged on the rotating shaft 12 and elastically contacts the coil fixing seat 11. The arrangement of the second elastic member 18 can effectively provide resistance to the rotation of the mechanism, ensuring that the strip material 1 can always be in a tensioned state during the transmission process.

[0042] Furthermore, in the present embodiment, a circumferential limiting structure and an axial limiting structure are provided between the shaft sleeve 16 and the material tray 13. The circumferential limiting structure limits the circumferential relative rotation between the material tray 13 and the shaft sleeve 16, and the axial limiting structure limits the movement of the material tray 13 along the axial direction of the shaft sleeve 16, thereby fixing the material tray 13 on the shaft sleeve 16.

[0043] More specifically, the circumferential limiting structure includes an outer circumferential surface of the shaft sleeve 16 in a "D" shape (such as Figure 4The material tray 13 is sleeved on the "D"-shaped outer peripheral surface of the shaft sleeve 16 through the "D"-shaped center hole to limit the circumferential relative rotation between the material tray 13 and the shaft sleeve 16. The structure is simple and easy to implement.

[0044] To be more specific, the axial limiting structure includes a contact convex ring 163 protruding along the radial direction of the sleeve 16 and the fixing pin 15. The inner side of the material tray 13 contacts the contact convex ring 163 of the sleeve 16. The fixing pin 15 also protrudes from the outer peripheral surface of the sleeve 16 and contacts the outer side of the material tray 13, thereby limiting the movement of the material tray 13 along the axial direction of the sleeve 16. The material tray 13 is also provided with a clearance notch (not shown) for the fixing pin 15 to pass through, and the clearance notch also corresponds to the guide notch 161 of the sleeve 16.

[0045] During assembly, the material tray 13 is first sleeved on the shaft sleeve 16. The cooperation between the "D"-shaped center hole of the material tray 13 and the "D"-shaped outer peripheral surface of the shaft sleeve 16 can effectively limit the circumferential rotation of the material tray 13 relative to the shaft sleeve 16; then, the shaft sleeve 16 is sleeved on the rotating shaft 12. When the fixing pin 15 cooperates with the guide notch 161, the part of the fixing pin 15 protruding from the shaft sleeve 16 will also pass from the inner side of the material tray 13 through the clearance notch of the material tray 13 to the outer side of the material tray 13. When the shaft sleeve 16 is rotated to make the fixing pin 15 engage with the clamping interface 162, the material tray 13 will also rotate synchronously, thereby making the fixing pin 15 contact the outer side of the material tray 13. The material tray 13 is restrained from moving along the axial direction of the shaft sleeve 16 by the contact convex ring 163 and the fixing pin 15, and finally fixation is achieved.

[0046] By adopting this fixing method, the detachable assembly of the material tray 13 and the shaft sleeve 16 can be realized, and the fixing structure is simple, easy to operate, and convenient for replacement, maintenance, etc. Of course, in other embodiments, the fixed connection structure of the material tray 13 and the shaft sleeve 16 is not limited to this.

[0047] Furthermore, in this embodiment, the strip clamping disc 14 also has a fixing convex ring 141 extending in the axial direction, and corresponding fixing holes (not shown) are provided on the fixing convex ring 141 and the shaft sleeve 16, and also includes a fixing handle 17, and the fixing handle 17 is fixedly provided in the fixing hole of the fixing convex ring 141 and the fixing hole of the shaft sleeve 16 to achieve detachable fixing of the strip clamping disc 14. When the strip clamping disc 14 needs to be removed, it can be taken out by simply loosening the fixing handle 17 and rotating the strip clamping disc 14, which is easy to operate.

[0048] The second end 122 of the rotating shaft 12 is also exposed outside the coil fixing seat 11, and the second elastic member 18 is disposed on the second end 122 of the rotating shaft 12. The second elastic member 18 is disposed at the second end 122 of the rotating shaft 12, away from the material tray 13 and other components on the first end 121. The separate arrangements will not affect each other, and the second elastic member 18 disposed at the exposed second end 122 is also easy to assemble and replace. Of course, this is not limited to other embodiments.

[0049] Specifically, the second elastic member 18 is a spring, which has a simple structure and is easy to implement. Of course, in other embodiments, other elastic components such as springs can also be used instead.

[0050] The material coiling mechanism 10 provided in this embodiment has the advantages of being light and convenient for material replacement, etc. Moreover, it can be operated directly manually without any tools, and is easy to operate.

[0051] Furthermore, in this embodiment, the cutting mechanism 30 includes a cutting fixed frame 31, a cutting cylinder 32, a cutter 33, a spring block 34, a spring lever 36 and a spring cylinder 37. The cutting fixed frame 31 has a carrier 311 whose surface is parallel to the output end of the receiving and feeding mechanism 20, and the strip material 1 output by the receiving and feeding mechanism 20 is transferred to the carrier 311.

[0052] The cutting cylinder 32, the spring block 34, the spring lever 36 and the spring cylinder 37 are all arranged above the platform 311. The cutting cylinder 32 drives the cutter 33 to drive the cutter 33 to move up and down, thereby realizing the punching and cutting operation; the spring block 34 is elastically pressed against the surface of the platform 311 by the action of a third elastic member 35, and can clamp the strip 1 on the platform 311.

[0053] The first arm of the spring lever 36 is connected to the spring block 34, and the spring cylinder 37 corresponds to the upper end of the second arm of the spring lever 36. The pressure exerted by the spring cylinder 37 on the second arm of the spring lever 36 can drive the spring block 34 to overcome the action of the third elastic member 35 and move upward to separate from the carrier 311, thereby achieving the loosening of the strip 1. After the spring cylinder 37 is reset, the spring block 34 moves down again under the action of the third elastic member 35 to press against the carrier 311, thereby clamping the strip 1.

[0054] The specific coordination method is: when the clamping cylinder 24 of the feeding and receiving mechanism 20 drives the driven transmission wheel 25 to clamp the strip 1, the spring cylinder 37 applies pressure to the second arm of the spring lever 36 to move the spring block 34 up and away from the strip 1, driving the servo motor 22 to convey the strip 1. The strip 1 moves forward a certain distance. After the conveying is completed, the clamping cylinder 24 drives the driven transmission wheel 25 to disengage. At this time, the spring cylinder 37 also retracts and disengages from the second arm of the spring lever 36. The spring block 34 moves down again under the action of the third elastic member 35 to press against the carrier 311, thereby clamping the strip 1. Finally, the cutting cylinder 32 drives the cutter 33 to punch the strip 1 to achieve cutting. Repeat the above actions to achieve automatic cutting of the strip 1.

[0055] Through the coordinated action of the clamping cylinder 24 and the spring cylinder 37, one is loosened (the cutting mechanism 30 is loosened) and the other is pressed (the receiving and feeding mechanism 20 is pressed) during feeding, and one is pressed (the cutting mechanism 30 is pressed) and the other is loosened (the receiving and feeding mechanism 20 is loosened) during cutting, thereby ensuring that there is no slippage or wrinkling in the receiving and feeding process of the material, and at the same time ensuring the accuracy of the cutting position.

[0056] Furthermore, in this embodiment, the cutting mechanism 30 also includes a lifting block 38. The carrier 311 is provided with a clearance opening (not shown) at the position corresponding to the cutter 33. The lifting block 38 is arranged on the clearance opening and is flush with the surface of the carrier 311 through the elastic support of a fourth elastic member 39. When the cutter 33 punches, the lifting block 38 is pressed down by the cutter 33, so that the cutter 33 can move down enough to ensure that the cutting edge of the strip 1 is smooth. After the cutter 33 moves up, the lifting block 38 moves up again and resets under the action of the fourth elastic member 39. Of course, other embodiments are not limited to this.

[0057] Furthermore, in this embodiment, an upper cover 312 is provided above the carrier 311 , and a gap is provided between the upper cover 312 and the carrier 311 to form a transmission channel for transmitting the strip material 1 , which can effectively prevent the strip material 1 from arching and deforming.

[0058] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A material receiving and feeding device, comprising a material coiling mechanism, a material receiving and feeding mechanism and a cutting mechanism, wherein the material receiving and feeding mechanism corresponds to the output end of the material coiling mechanism to extract the tape from the material coiling mechanism and output it, and the cutting mechanism corresponds to the output end of the material receiving and feeding mechanism to cut the output tape; characterized in that: The material receiving and feeding mechanism includes a material receiving and feeding fixed seat, a servo motor, an active transmission wheel, a driven transmission wheel and a clamping cylinder. The servo motor and the clamping cylinder are fixedly assembled on the material receiving and feeding fixed seat. The driving shaft of the servo motor is connected to the active transmission wheel to drive the active transmission wheel to rotate. The piston rod of the clamping cylinder is connected to the driven transmission wheel and can drive the driven transmission wheel to approach or move away from the active transmission wheel to clamp or loosen the strip passing between the active transmission wheel and the driven transmission wheel. The material winding mechanism includes a material winding fixed seat, a rotating shaft, a shaft sleeve, a material disc, a strip clamping disc and a second elastic member. The rotating shaft is rotatably arranged on The coil fixing seat has an exposed first end portion, the first end portion of the rotating shaft is provided with a fixing pin protruding from the outer circumferential surface of the rotating shaft, the sleeve is provided with a guide notch and a card interface connected to the guide notch and perpendicular to the axial direction of the sleeve, the sleeve is sleeved on the first end portion of the rotating shaft, the fixing pin on the rotating shaft corresponds to the card interface and is snap-fitted in the card interface through the guidance of the guide notch, the material tray is fixedly sleeved on the sleeve, the strip clamping disc is detachably fixedly sleeved on the sleeve, and is tightly attached to the outer side of the material tray to fix the strip on the material tray; the second elastic member is arranged on the rotating shaft and elastically contacts the coil fixing seat.

2. The material receiving and feeding device according to claim 1, characterized in that: A circumferential limiting structure and an axial limiting structure are provided between the shaft sleeve and the material tray. The circumferential limiting structure limits the circumferential relative rotation between the material tray and the shaft sleeve, and the axial limiting structure limits the movement of the material tray along the axial direction of the shaft sleeve.

3. The material receiving and feeding device according to claim 2, characterized in that: The circumferential limiting structure includes an outer circumferential surface of a shaft sleeve in a "D" shape and a center hole of a material tray in a "D" shape. The material tray is sleeved on the "D" shaped outer circumferential surface of the shaft sleeve through the "D" shaped center hole to limit the circumferential relative rotation between the material tray and the shaft sleeve.

4. The material receiving and feeding device according to claim 2, characterized in that: The axial limiting structure includes a contact convex ring protruding along the radial direction of the sleeve and the fixing pin. The inner side of the material tray contacts the contact convex ring of the sleeve. The fixing pin also protrudes from the outer peripheral surface of the sleeve and contacts the outer side of the material tray, thereby limiting the movement of the material tray along the axial direction of the sleeve. The material tray is also provided with a clearance notch for the fixing pin to pass through.

5. The material receiving and feeding device according to claim 1, characterized in that: The strip clamping disc also has a fixing convex ring extending in the axial direction, and corresponding fixing holes are opened on the fixing convex ring and the shaft sleeve. It also includes a fixing handle, which is fixedly inserted into the fixing hole of the fixing convex ring and the fixing hole of the shaft sleeve to realize detachable fixation of the strip clamping disc.

6. The material receiving and feeding device according to claim 1, characterized in that: The cutting mechanism includes a cutting fixed frame, a cutting cylinder, a cutter, a spring block, a spring lever and a spring cylinder. The cutting fixed frame has a carrier whose surface is parallel to the output end of the feeding and receiving mechanism. The cutting cylinder, the spring block, the spring lever and the spring cylinder are all arranged above the carrier. The cutting cylinder drives the cutter to drive the cutter to move up and down, thereby realizing the cutting operation; the spring block is elastically pressed against the surface of the carrier by a third elastic member, the first arm of the spring lever is connected to the spring block, and the spring cylinder corresponds to the upper end of the second arm of the spring lever. The pressure of the spring cylinder on the second arm of the spring lever can drive the spring block to overcome the action of the third elastic member and move up to leave the carrier.

7. The material receiving and feeding device according to claim 1, characterized in that: A first elastic member is also provided on the material receiving and feeding fixed seat. The first elastic member acts on the driven transmission wheel and applies an elastic force to the driven transmission wheel to make it move away from the driving transmission wheel.

8. The material receiving and feeding device according to claim 1, characterized in that: The material receiving and feeding fixed seat has a first mounting frame and a second mounting frame located above the first mounting frame, the active transmission wheel can be rotatably mounted on the first mounting frame, the first mounting frame has an upper surface tangent to the active transmission wheel, and the second mounting frame is provided with a vertically arranged long slot hole, and the driven transmission wheel can be raised and lowered and movably sleeved in the long slot hole.

Images