A sheet gripper device for a sheet core tube recycling machine

Abstract

The application discloses a bill clamping device of a bill core pipe recycling machine, which comprises a mounting frame, a feeding roller, a rotating motor, a mounting block, a clamping jaw cylinder, a first clamping plate, a second clamping plate and a first driving mechanism, one end of the feeding roller is mounted on the mounting frame, the feeding roller is used for placing a bill core pipe, the first driving mechanism is mounted on the mounting frame and is used for driving the feeding roller to rotate, the rotating motor is mounted on the mounting frame, the mounting block is mounted on an output shaft of the rotating motor, the clamping jaw cylinder is mounted on the mounting block, one end of the first clamping plate is connected to one clamping jaw of the clamping jaw cylinder, one end of the second clamping plate is connected to the other clamping jaw of the clamping jaw cylinder, and the clamping jaw cylinder drives the first clamping plate and the second clamping plate to clamp bills. The application has the effects of convenient bill clamping and taking down.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clamping equipment, in particular to a bill clamping device of a bill core tube recycling machine. BACKGROUND

[0002] The frequently used bill is wound on the bill core tube, after the bill is used almost, in order to reduce the waste of resources, realize the recycling of resources, the bill core tube is recycled, after recycling, the new bill wound on the bill core tube is used again.

[0003] In the related art, since a small part of bills is wound on the recycled bill core tube, the bills need to be cleaned, the traditional way is to pull the bills on the bill core tube to the winding shaft by the staff, and then the bills are clamped by the clamp, and the bills are taken off from the bill core tube by driving the shaft to rotate.

[0004] The above operation mode is difficult to control the clamping degree of the bill, and the bill is difficult to take off from the shaft after being wound on the clamp and the shaft, and needs to be damaged to take off, which is not convenient. SUMMARY

[0005] In order to improve the convenience of bill clamping, the present application provides a bill clamping device of a bill core tube recycling machine.

[0006] The bill clamping device of the bill core tube recycling machine provided by the present application adopts the following technical scheme:

[0007] A bill clamping device of a bill core tube recycling machine, comprising a mounting frame, a feeding roller, a rotating motor, a mounting block, a clamping jaw cylinder, a first clamping plate, a second clamping plate and a first driving mechanism, one end of the feeding roller is mounted on the mounting frame, the feeding roller is used for placing the bill core tube, the first driving mechanism is mounted on the mounting frame, the first driving mechanism is used for driving the feeding roller to rotate, the rotating motor is mounted on the mounting frame, the mounting block is mounted on the output shaft of the rotating motor, the clamping jaw cylinder is mounted on the mounting block, one end of the first clamping plate is connected to one of the clamping jaws of the clamping jaw cylinder, one end of the second clamping plate is connected to the other clamping jaw of the clamping jaw cylinder, and the clamping jaw cylinder drives the first clamping plate and the second clamping plate to clamp the bill.

[0008] By adopting the technical scheme, the bill core pipe is sleeved on the feeding roller, the first driving mechanism drives the feeding roller to rotate, the feeding roller drives the bill core pipe to rotate through friction, when the paper head of the bill core pipe falls between the first clamping plate and the second clamping plate, the clamping jaw cylinder drives the first clamping plate and the second clamping plate to clamp the paper head, the rotary motor rotates, the rotary motor drives the mounting block to rotate, the mounting block drives the clamping jaw cylinder to rotate, the first clamping plate and the second clamping plate wind the bill, and the bill is torn off from the bill core pipe; when the bill needs to be taken off from the first clamping plate and the second clamping plate, the clamping jaw cylinder slightly separates the first clamping plate and the second clamping plate, the holding of the first clamping plate and the second clamping plate to the paper head is contacted, the bill can be slid off from the first clamping plate and the second clamping plate, the bill is conveniently taken off, the clamping force of the first clamping plate and the second clamping plate to the paper head can be controlled through the control of the clamping force of the clamping jaw cylinder, and the convenience of clamping the paper head of the bill is improved.

[0009] Optionally, a plurality of protrusions are arranged on the side surface of the first clamping plate close to the second clamping plate, and a plurality of grooves are arranged on the side surface of the second clamping plate close to the first clamping plate and matched with the protrusions.

[0010] By adopting the technical scheme, when the first clamping plate and the second clamping plate clamp the paper head, the protrusions are matched with the grooves, the paper head is extruded into the grooves through the protrusions, the friction between the paper head and the first clamping plate and the second clamping plate is increased, the paper head is not easy to slip off between the first clamping plate and the second clamping plate, and the stability of the first clamping plate and the second clamping plate in clamping the paper head is improved.

[0011] Optionally, the side surface of the first clamping plate and the second clamping plate away from each other is provided with a placing groove, a first spring is arranged in the placing groove, a movable strip is further arranged in the placing groove, both ends of the movable strip are slidably connected to the inner wall of the placing groove, the first spring is abutted between the bottom of the placing groove and the movable strip, and the side of the movable strip away from the bottom of the placing groove extends out of the placing groove.

[0012] By adopting the technical scheme, when the paper head wound on the first clamping plate and the second clamping plate needs to be taken off, the clamping jaw cylinder drives the first clamping plate and the second clamping plate to move away from each other, the wound bill extrudes the movable strip, the movable strip compresses the first spring, the movable strip shrinks into the placing groove, air space is generated between the first clamping plate and the second clamping plate, and the paper head is separated from the clamping of the first clamping plate and the second clamping plate, so that the bill can be easily taken off from the first clamping plate and the second clamping plate.

[0013] Optionally, a guide rod is arranged on the mounting frame, the guide rod is located below the feeding roller, the guide rod is arranged in the same direction as the axis direction of the feeding roller, and the guide rod is used for poking out the paper head of the bill; the first clamping plate and the second clamping plate are located below the guide rod, and the first clamping plate and the second clamping plate are arranged along the length direction of the guide rod.

[0014] By adopting the technical scheme, the first driving mechanism drives the feeding roller to rotate, the feeding roller drives the bill core tube to rotate through friction, the bill head of the bill core tube contacts the guide rod, the guide rod pushes the bill head away from the bill core tube, and the bill head slides into the space between the first clamping plate and the second clamping plate, so that the first clamping plate and the second clamping plate clamp the bill head automatically.

[0015] Optionally, the mounting frame is provided with a vertical plate and an inclined plate, the vertical plate is located directly below the guide rod, the inclined plate is located on one side of the vertical plate, the vertical plate and the inclined plate form a channel that gradually decreases from top to bottom, and the first clamping plate and the second clamping plate are located below the inclined plate and the vertical plate.

[0016] By adopting the technical scheme, when the guide rod pushes the bill head away from the bill core tube, the bill head enters the space between the vertical plate and the inclined plate, the bill head is guided by the vertical plate and the inclined plate, the bill head can accurately enter the space between the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate clamp the bill head automatically.

[0017] Optionally, the feeding roller comprises a connecting seat, three arc-shaped plates and an expansion cone, the connecting seat is rotationally connected to the mounting frame, one end of each of the arc-shaped plates is slidingly connected to an end face of the connecting seat, the three arc-shaped plates are spliced to form a circular tube, the expansion cone is located between the three arc-shaped plates, a tapered cavity that cooperates with the expansion cone is formed between the three arc-shaped plates, and the mounting frame is provided with a second driving mechanism for driving the expansion cone to support the arc-shaped plates.

[0018] By adopting the technical scheme, in order to make it easier to tear the bill from the bill core tube, the second driving mechanism drives the expansion cone to move, the expansion cone supports the three arc-shaped plates, the three arc-shaped plates support the bill core tube, the bill core tube is fixed on the three arc-shaped plates, the first driving mechanism continues to drive the feeding roller to rotate, the feeding roller drives the bill core tube to rotate together, and it is easier to tear the end of the bill from the bill core tube under the rotation of the feeding roller and the rotation of the first clamping plate and the second clamping plate, thereby reducing excessive pulling of the bill core tube.

[0019] Optionally, the second driving mechanism comprises a threaded sleeve, a threaded rod and a second driving assembly, one end of the threaded rod is rotationally connected to an end face of the expansion cone, the other end of the threaded rod penetrates out of the connecting seat, the threaded sleeve is sleeved on the threaded rod and is in threaded transmission with the threaded rod, the threaded sleeve is rotationally connected to the mounting frame, a positioning groove is arranged on an axial face of the threaded rod, a positioning block is arranged in the connecting seat, and the positioning block slides in the positioning groove.

[0020] By adopting the technical scheme, when the expansion cone needs to be driven to move, the second driving assembly drives the threaded sleeve to rotate, the threaded sleeve drives the threaded rod to move horizontally, one end of the horizontally moving threaded rod drives the expansion cone to move in the conical cavity, and the three arc-shaped plates can be expanded; the threaded sleeve moves reversely, and the expansion cone can be driven by the threaded rod to release the support of the three arc-shaped plates.

[0021] Optionally, the mounting frame is provided with a push cylinder, a piston rod of the push cylinder is arranged along the length direction of the feeding roller, and a push plate is connected to the end of the piston rod of the push cylinder, and the push plate is used to push the bill core tube out of the feeding roller.

[0022] By adopting the technical scheme, when the bill on the bill core tube is taken off, the push cylinder pushes the push plate, the push plate pushes the bill core tube, and the bill core tube slides off the feeding roller, without the need for manual taking off of the bill core tube.

[0023] Optionally, the feeding end of the feeding roller is in a pointed conical shape.

[0024] By adopting the technical scheme, when the bill core tube is sleeved on the feeding roller, the feeding end of the feeding roller is in a pointed conical shape, facilitating the mounting of the bill core tube on the feeding roller.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The bill core tube is sleeved on the feeding roller, the first driving mechanism drives the feeding roller to rotate, the feeding roller drives the bill core tube to rotate through friction, the paper head of the bill core tube falls between the first clamping plate and the second clamping plate, the clamping jaw cylinder drives the first clamping plate and the second clamping plate to clamp the paper head, the rotary motor rotates, the rotary motor drives the mounting block to rotate, the mounting block drives the clamping jaw cylinder to rotate, the first clamping plate and the second clamping plate wind the bill, and the bill is torn off from the bill core tube; when the bill needs to be taken off from the first clamping plate and the second clamping plate, the clamping jaw cylinder slightly opens the first clamping plate and the second clamping plate, the contact of the first clamping plate and the second clamping plate with the paper head can slide the bill off the first clamping plate and the second clamping plate, facilitating the taking off of the bill, the clamping force of the first clamping plate and the second clamping plate on the paper head can be controlled by controlling the clamping force of the clamping jaw cylinder, and the convenience of clamping the paper head of the bill is improved;

[0027] 2. When the first clamping plate and the second clamping plate clamp the paper head, the protrusion and the groove are matched, the protrusion is used to extrude the paper head into the groove, the friction force between the paper head and the first clamping plate and the second clamping plate is increased, the paper head is not easy to slip off between the first clamping plate and the second clamping plate, and the stability of the first clamping plate and the second clamping plate in clamping the paper head is improved;

[0028] 3. When the paper head wound on the first and second clamping plates needs to be taken off, the clamping jaw cylinder drives the first and second clamping plates to move away from each other, the wound bill is pressed against the movable strip, the movable strip compresses the first spring, the movable strip is retracted into the placing groove, an air gap is generated between the first and second clamping plates, the paper head is separated from the clamping of the first and second clamping plates, and the bill can be easily taken off from the first and second clamping plates. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 FIG. 1 is a structural schematic diagram of a clamping device according to an embodiment of the present application.

[0030] Figure 2 FIG. 2 is another perspective structural schematic diagram of the clamping device according to the embodiment of the present application.

[0031] Figure 3 FIG. 3 is a partial structural schematic diagram of the clamping device according to the embodiment of the present application.

[0032] Figure 4 FIG. 4 is an enlarged schematic diagram of part A in FIG. 3. Figure 1

[0033] Legend of reference signs:

[0034] 1, mounting frame; 11, guide rod; 12, vertical plate; 13, inclined plate; 14, bottom plate; 15, mounting plate; 2, feeding roller; 21, connecting seat; 211, positioning block; 212, T-shaped groove; 213, abutting plate; 214, second spring; 22, arc-shaped plate; 221, T-shaped block; 23, expansion cone; 24, conical cavity; 3, rotary motor; 31, mounting block; 32, clamping jaw cylinder; 33, first clamping plate; 331, protrusion; 332, placing groove; 333, first spring; 334, movable strip; 34, second clamping plate; 341, recess; 4, first driving mechanism; 41, first motor; 42, first belt pulley; 43, second belt pulley; 44, belt strip; 5, second driving mechanism; 51, threaded sleeve; 52, threaded rod; 521, positioning groove; 53, second driving assembly; 531, second motor; 532, first gear; 533, second gear; 61, pushing cylinder; 62, pushing plate. DETAILED DESCRIPTION

[0035] The following will be described in detail with reference to the accompanying drawings. Figures 1-4 The present application will be further described in detail.

[0036] The embodiment of the present application discloses a bill clamping device of a bill core pipe recycling machine. Referring to Figure 1 ​The clamping device comprises a mounting frame 1, a feeding roller 2, a rotary motor 3, a mounting block 31, a clamping jaw cylinder 32, a first clamping plate 33, a second clamping plate 34, a first driving mechanism 4 and a second driving mechanism 5.

[0037] With reference to Figure 1 and Figure 2 The feeding roller 2 comprises a connecting seat 21, three arc-shaped plates 22 and an expansion cone 23. The connecting seat 21 is rotatably connected to the mounting plate 15 and is in the shape of a cylinder. The connecting seat 21 is perpendicular to the mounting plate 15 and is provided with three T-shaped grooves 212 on one side. The three T-shaped grooves 212 are evenly arranged around the center of the connecting seat 21. Each arc-shaped plate 22 is fixedly connected to one end with a T-shaped block 221 which is matched with the T-shaped groove 212. The three arc-shaped plates 22 are connected to form a circular tube. The end of the circular tube away from the connecting seat 21 is in the shape of a tip. The circular tube is used for sleeving a bill core tube. The expansion cone 23 is located between the three arc-shaped plates 22 and forms a conical cavity 24 matched with the expansion cone 23. The bottom surface of the T-shaped groove 212 is connected with an abutting plate 213 which is close to the outer circumferential surface of the connecting seat 21. The side surface of the abutting plate 213 close to the T-shaped block 221 is connected with one end of a second spring 214. The other end of the second spring 214 abuts against the side surface of the T-shaped block 221. The first driving mechanism 4 is installed on the mounting plate 15 and is used for driving the connecting seat 21 to rotate. The second driving mechanism 5 is also installed on the mounting plate 15 and is used for driving the expansion cone 23 to move in the conical cavity 24.

[0038] The second driving mechanism 5 drives the expansion cone 23 to move in the conical cavity 24. The expansion cone 23 pushes the arc-shaped plates 22 to slide in the T-shaped grooves 212 of the connecting seat 21 through the T-shaped blocks 221. The T-shaped blocks 221 press the second springs 214. The expansion cone 23 lifts up the three arc-shaped plates 22. The three lifted arc-shaped plates 22 limit the bill core tube. The first driving mechanism 4 drives the connecting seat 21 to rotate. The connecting seat 21 drives the arc-shaped plates 22 to rotate. The arc-shaped plates 22 drive the bill core tube to rotate. When the second driving mechanism 5 drives the expansion cone 23 to retract, the expansion cone 22 releases the pressing of the arc-shaped plates 22. The second spring 214 pushes the T-shaped blocks 221 through the abutting plate 213 so that the three arc-shaped plates 22 are reset.

[0039] With reference to Figure 1 and Figure 2The guide rod 11 is connected to one side of the mounting plate 15 close to the arc-shaped plate 22, and is located right below the arc-shaped plate 22. When the arc-shaped plate 22 is not supporting the bill core tube, the three arc-shaped plates 22 are rotated, and the arc-shaped plate 22 drives the bill core tube to rotate through friction, so that the bill paper head contacts the guide rod 11, and the guide rod 11 is used to push the bill paper head off the bill core tube.

[0040] With reference to Figure 1 and Figure 2 The rotating motor 3 is installed on the bottom plate 14, and is located on the side of the mounting plate 15 away from the arc-shaped plate 22. The output shaft of the rotating motor 3 faces the mounting plate 15. The mounting block 31 is connected to the output shaft of the rotating motor 3. The clamping jaw air cylinder 32 is installed on the mounting block 31. One end of the first clamping plate 33 is connected to one clamping jaw of the clamping jaw air cylinder 32. One end of the second clamping plate 34 is connected to the other clamping jaw of the clamping jaw air cylinder 32. The first clamping plate 33 and the second clamping plate 34 are located below the vertical plate 12 and the inclined plate 13. The clamping jaw air cylinder 32 drives the first clamping plate 33 and the second clamping plate 34 to clamp the bill.

[0041] The bill paper head is guided by the vertical plate 12 and the inclined plate 13 and then enters between the first clamping plate 33 and the second clamping plate 34. The clamping jaw air cylinder 32 drives the first clamping plate 33 and the second clamping plate 34 to clamp the bill paper head. The rotating motor 3 drives the mounting block 31 to rotate, and the mounting block 31 drives the clamping jaw air cylinder 32 to rotate. The first clamping plate 33 and the second clamping plate 34 wind the bill. The clamping jaw air cylinder 32 can control the clamping force of the first clamping plate 33 and the second clamping plate 34 on the bill, so that the bill is not easy to slip off during winding. When the wound bill is taken off from the first clamping plate 33 and the second clamping plate 34, the clamping jaw air cylinder 32 slightly spreads the first clamping plate 33 and the second clamping plate 34, and releases the clamping of the first clamping plate 33 and the second clamping plate 34 on the bill paper head. The bill can be taken off from the first clamping plate 33 and the second clamping plate 34.

[0042] With reference to Figure 2 and Figure 3The side of the first clamping plate 33 close to the second clamping plate 34 is provided with a plurality of protrusions 331, and the side of the second clamping plate 34 close to the first clamping plate 33 is provided with grooves 341 matched with the protrusions 331. The protrusions 331 and the grooves 341 further clamp the paper head and reduce the possibility of the paper head slipping out from between the first clamping plate 33 and the second clamping plate 34. The side of the first clamping plate 33 and the side of the second clamping plate 34 away from each other are both provided with a placing groove 332. The placing groove 332 is provided with a plurality of first springs 333 and a movable strip 334. The movable strip 334 is slidably connected to the inner wall of the placing groove 332, and the first spring 333 is abutted between the bottom of the placing groove 332 and the movable strip 334. The side of the movable strip 334 away from the bottom of the placing groove 332 extends out of the placing groove 332.

[0043] When the bill is taken off from the first clamping plate 33 and the second clamping plate 34, the bill is wound on the first clamping plate 33 and the second clamping plate 34, and the first clamping plate 33 and the second clamping plate 34 are difficult to be slightly opened. Therefore, the movable strip 334 is provided. The movable strip 334 is pressed by the bill, and the movable strip 334 is retracted into the placing groove 332. The movable strip 334 compresses the first spring 333, so that the gap is generated between the first clamping plate 33 and the second clamping plate 34. The first clamping plate 33 and the second clamping plate 34 are released from clamping the bill head, and the bill can be taken off from the first clamping plate 33 and the second clamping plate 34.

[0044] Referring to Figure 1 The mounting plate 15 is provided with a pushing cylinder 61. The piston rod of the pushing cylinder 61 is arranged along the length direction of the feeding roller 2. The end of the piston rod of the pushing cylinder 61 is connected with a pushing plate 62. The pushing plate 62 is used for pushing the bill core tube out of the feeding roller 2, and the bill core tube does not need to be manually taken off.

[0045] Referring to Figure 1 and Figure 4The second driving mechanism 5 comprises a threaded sleeve 51, a threaded rod 52 and a second driving assembly 53. One end of the threaded rod 52 is rotationally connected to the end face of the expansion cone 23, the other end of the threaded rod 52 penetrates out of the connecting seat 21, the threaded sleeve 51 is sleeved on the threaded rod 52 and is in threaded transmission with the threaded rod 52, the threaded sleeve 51 is rotationally connected to the mounting plate 15 through a support, the threaded rod 52 is provided with a positioning groove 521 in the axial direction, and the connecting seat 21 is provided with a positioning block 211 which slides in the positioning groove 521. The second driving assembly 53 comprises a second motor 531, a first gear 532 and a second gear 533. The second motor 531 is installed on the side face of the mounting plate 15 away from the arc plate 22, the first gear 532 is coaxially and fixedly connected to the output shaft of the second motor 531, and the second gear 533 is coaxially and fixedly connected to the outer circumferential surface of the threaded sleeve 51. The second gear 533 is in meshing transmission with the first gear 532.

[0046] When it is needed to drive the expansion cone 23 to move horizontally in the conical cavity 24, the second motor 531 drives the first gear 532 to rotate, the first gear 532 drives the second gear 533 to rotate, the second gear 533 drives the threaded sleeve 51 to rotate, the threaded sleeve 51 drives the threaded rod 52 to move along the axial direction of the threaded sleeve 51, and the threaded rod 52 can drive the expansion cone 23 to move along the axial direction of the threaded rod 52.

[0047] With reference to Figure 1 The first driving mechanism 4 comprises a first motor 41, a first belt pulley 42, a second belt pulley 43 and a belt strip 44. The first motor 41 is installed on the side face of the mounting plate 15 away from the arc plate 22, the first belt pulley 42 is coaxially connected to the output shaft of the first motor 41, the second belt pulley 43 is coaxially connected to the outer circumferential surface of the connecting seat 21, and the belt strip 44 is wound on the first belt pulley 42 and the second belt pulley 43. The first motor 41 drives the first belt pulley 42 to rotate, the first belt pulley 42 drives the second belt pulley 43 to rotate through the belt strip 44, the second belt pulley 43 drives the connecting seat 21 to rotate, and the connecting seat 21 can drive the arc plate 22 to rotate.

[0048] The implementation principle of the bill clamping device of the bill core tube recycling machine is as follows: the feeding roller 2 drives the bill core tube to rotate, the bill paper head contacts the guide rod 11, the guide rod 11 pushes the bill paper head away from the bill core tube, the paper head enters between the vertical plate 12 and the inclined plate 13, is guided by the vertical plate 12 and the inclined plate 13, enters between the first clamping plate 33 and the second clamping plate 34, the paper head is clamped by the first clamping plate 33 and the second clamping plate 34 driven by the clamping jaw air cylinder 32, the clamping jaw air cylinder 32 can control the clamping force of the first clamping plate 33 and the second clamping plate 34 on the paper head, and the convenience of clamping the bill paper head is improved; when the bill needs to be taken off from the first clamping plate 33 and the second clamping plate 34, the first clamping plate 33 and the second clamping plate 34 are opened by the clamping jaw air cylinder 32, the movable strip 334 is extruded by the bill, the movable strip 334 is retracted into the placement groove 332, a gap is formed between the first clamping plate 33 and the second clamping plate 34, the clamping of the first clamping plate 33 and the second clamping plate 34 on the paper head is released, the bill can be slid off from the first clamping plate 33 and the second clamping plate 34, and the convenience of taking down the bill is improved.

[0049] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A bill clamping device for a bill core tube recycling machine, characterized by: The invention comprises a mounting frame (1), a feeding roller (2), a rotating motor (3), a mounting block (31), a clamping cylinder (32), a first clamping plate (33), a second clamping plate (34) and a first driving mechanism (4), wherein one end of the feeding roller (2) is mounted on the mounting frame (1), the feeding roller (2) is used to place the bill core tube, the first driving mechanism (4) is mounted on the mounting frame (1), the first driving mechanism (4) is used to drive the feeding roller (2) to rotate, and the rotating motor ( 3) is mounted on the mounting frame (1), the mounting block (31) is mounted on the output shaft of the rotating motor (3), the clamping cylinder (32) is mounted on the mounting block (31), one end of the first clamping plate (33) is connected to one of the clamping jaws of the clamping cylinder (32), one end of the second clamping plate (34) is connected to the other clamping jaw of the clamping cylinder (32), and the clamping cylinder (32) drives the first clamping plate (33) and the second clamping plate (34) to clamp the bill; A side surface of the first clamping plate (33) close to the second clamping plate (34) is provided with a plurality of protrusions (331); a side surface of the second clamping plate (34) close to the first clamping plate (33) is provided with grooves (341) that cooperate with the protrusions (331); A placement groove (332) is provided on a side of the first clamping plate (33) and the second clamping plate (34) that are away from each other. A first spring (333) is provided in the placement groove (332). A movable bar (334) is also provided in the placement groove (332). Both ends of the movable bar (334) are slidably connected to the inner wall of the placement groove (332). The first spring (333) is in contact between the bottom of the placement groove (332) and the movable bar (334). The side of the movable bar (334) that is away from the bottom of the placement groove (332) extends out of the placement groove (332).

2. The bill clamping device of the bill core tube recycling machine according to claim 1, characterized in that: A guide rod (11) is installed on the mounting frame (1), and the guide rod (11) is located below the discharge roller (2). The axial direction of the guide rod (11) is the same as the axial direction of the discharge roller (2), and the guide rod (11) is used to push out the paper head of the bill; the first clamping plate (33) and the second clamping plate (34) are located below the guide rod (11), and the first clamping plate (33) and the second clamping plate (34) are arranged along the length direction of the guide rod (11).

3. The bill clamping device of the bill core tube recycling machine according to claim 2, characterized in that: A vertical plate (12) and an inclined plate (13) are installed on the mounting frame (1), wherein the vertical plate (12) is located directly below the guide rod (11), and the inclined plate (13) is located on one side of the vertical plate (12). The vertical plate (12) and the inclined plate (13) form a channel that gradually decreases from top to bottom, and the first clamping plate (33) and the second clamping plate (34) are located below the inclined plate (13) and the vertical plate (12).

4. The bill clamping device of the bill core tube recycling machine according to claim 1, characterized in that: The discharge roller (2) includes a connecting seat (21), an arc plate (22) and an expansion cone (23); the connecting seat (21) is rotatably connected to the mounting frame (1); there are three arc plates (22); one end of the arc plate (22) is slidably connected to the end face of the connecting seat (21); the three arc plates (22) are spliced ​​to form a circular tube; the expansion cone (23) is located between the three arc plates (22); a conical cavity (24) that cooperates with the expansion cone (23) is formed between the three arc plates (22); and a second driving mechanism (5) for driving the expansion cone (23) to support the arc plate (22) is installed on the mounting frame (1).

5. The bill clamping device of the bill core tube recycling machine according to claim 4, characterized in that: The second driving mechanism (5) comprises a threaded sleeve (51), a threaded rod (52) and a second driving assembly (53), one end of the threaded rod (52) is rotatably connected to the end surface of the expansion cone (23), the other end of the threaded rod (52) passes through the outside of the connecting seat (21), the threaded sleeve (51) is sleeved on the threaded rod (52), and the threaded sleeve (51) and the threaded rod (52) are threadedly driven, the threaded sleeve (51) is rotatably connected to the mounting frame (1), the axial surface of the threaded rod (52) is provided with a positioning groove (521), a positioning block (211) is provided in the connecting seat (21), and the positioning block (211) slides in the positioning groove (521).

6. The bill clamping device of the bill core tube recycling machine according to claim 1, characterized in that: A pushing cylinder (61) is provided on the mounting frame (1), and a piston rod of the pushing cylinder (61) is provided along the length direction of the discharge roller (2). The end of the piston rod of the pushing cylinder (61) is connected to a pushing plate (62), and the pushing plate (62) is used to push the bill core tube out from the discharge roller (2).

7. The bill clamping device of the bill core tube recycling machine according to claim 1, characterized in that: The discharge end of the discharge roller (2) is in a pointed cone shape.

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