A skin and hair stretching and nailing machine

Abstract

The present application relates to the field of fur stretching, and particularly relates to a fur stretching and nailing machine, which comprises a base, a working cylinder, a carrier table, a last plate and a nailing mechanism. The working cylinder is fixed on the base, the end of the working cylinder piston rod is fixedly connected with the carrier table, and the carrier table is used to push the carrier table to move relative to the base. The last plate is connected to the carrier table, the front end of the last plate is used to fix the head of the fur, the nailing mechanism is connected to the base through a support and suspended above the last plate, and the lower end of the nailing mechanism is used to fix the tail of the fur. The working cylinder pushes the carrier table to drive the last plate to move, which is more efficient than the manual stretching in the prior art, and the length of the fur to be stretched is greater. The fur is evenly stressed during the stretching process, and the movement distance of the last plate can be clearly reflected, so that the length of the fur to be stretched is obtained. The maximum length of the fur to be stretched is achieved, and the fur fiber is prevented from being broken due to excessive stretching, so that the fur is not broken and uneven after drying.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fur stretching, and particularly relates to a fur stretching and nailing machine BACKGROUND

[0002] After wet processing such as soaking, acid soaking, tanning and fatting treatment, mink skin becomes soft and elastic, and has good stretching performance. The elongation is particularly important for mink skin, because the price of mink skin at auction mainly depends on the length of the skin board. In the prior art, many mink processing plants use manual stretching method to increase the elongation, and manually nail the skin board to the last board, or first nail and then stretch. The use of the prior art for stretching will cause uneven stress on the fur, and the stretching degree cannot be controlled, thereby causing permanent damage to the skin fiber structure, and the dried skin board will have cystic unevenness or cracking phenomenon, resulting in low quality of mink skin. SUMMARY

[0003] In order to overcome the technical problem of uneven stress in the fur stretching process in the prior art, a fur stretching and nailing machine is provided.

[0004] The technical scheme adopted by the present application to achieve the above-mentioned purpose is: a fur stretching and nailing machine, characterized in that it comprises a base 1, a working cylinder 506, a loading table 503, a last board 507 and a nailing mechanism, the working cylinder 506 is fixed on the base 1, the end of the piston rod of the working cylinder 506 is fixedly connected with the loading table 503, and is used to push the loading table 503 to move relative to the base 1, the loading table 503 is connected with the last board 507, the front end of the last board 507 is used to fix the head of the fur, and the nailing mechanism is connected with the base 1 through a support and hangs above the last board 507, and the lower end of the nailing mechanism is used to fix the tail of the fur.

[0005] Preferably, a guide rod 2 is arranged above the base 1, support rear end plates 3 and support front end plates 4 are arranged at both ends of the base 1, the guide rod 2 is fixed at both ends of the support rear end plates 3 and the support front end plates 4, a first sliding block 501 and a second sliding block 502 are fixedly connected below the loading table 503, the first sliding block 501 and the second sliding block 502 are sleeved on the guide rod 2, and the end of the piston rod of the working cylinder 506 is fixedly connected with the second sliding block 502.

[0006] Preferably, the nailing mechanism comprises a nailing cylinder 701, a clamping cylinder 702, a clamping plate 703, a clamping end plate 704, a clamping end top plate 705, a punch block 706, a punch piece 707, an automatic in-place nail box 708, a backing plate 709 and a pressing device, the clamping end plate 704 is fixedly connected with the clamping end top plate 705 at the upper end, and the two are perpendicular to each other, the backing plate 709 is fixed to the rear of the clamping end plate 704, the automatic in-place nail box 708 is fixed to the front of the clamping end plate 704, the clamping end top plate 705 is fixedly connected with the nailing cylinder 701 and the clamping cylinder 702 at the upper end, the end of the piston rod of the nailing cylinder 701 is fixedly connected with the punch block 706, the lower end of the punch block 706 is fixedly connected with a plurality of punch pieces 707, the lower end of the punch piece 707 abuts against the inside leather nails of the automatic in-place nail box 708, the clamping plate 703 is a Z-shaped bent plate, two T-shaped grooves are arranged at two corners of the clamping plate 703 respectively, the end of the piston rod of the clamping cylinder 702 is fixed at the upper T-shaped groove through a piston connecting bolt 7010, the clamping plate 703 is provided with an oblong hole, and the pressing device is pressed against the clamping plate 703 on the backing plate 709 through the oblong hole;

[0007] Preferably, the pressing device comprises a first knob 7011, a knob compression spring 7012 and a knob washer 7013, the knob compression spring 7012 is sleeved on the first knob 7011, the first knob 7011 passes through the oblong hole and is threadedly connected with the backing plate 709, and the knob compression spring 7012 can press the clamping plate 703 against the backing plate 709 through the knob washer 7013;

[0008] Preferably, the clamping cylinder 702, the clamping plate 703 and the guide rod 2 are each provided with two groups;

[0009] Preferably, the nailing mechanism is fixedly connected with a bent pipe 9 at one end, the bent pipe 9 is fixedly connected with an ear plate 10 at the bending part, the ear plate 10 is hingedly connected at one end of a support plate 1103, the other end of the support plate 1103 is fixedly connected with the base 1, a lifting cylinder 8 is fixedly connected below the base 1, the end of the piston rod of the lifting cylinder 8 is hingedly connected with the other end of the bent pipe 9, a damping cylinder 1101 is installed on the support front end plate 4, a cover nut 1102 is fixedly connected at the front end of the damping cylinder 1101, and the damping cylinder 1101 is internally provided with a damping device;

[0010] Preferably, the last plate 507 is detachably connected with the object table 503 through a handle bent plate 504 and a boot sleeve 505, the handle bent plate 504 is fixedly connected at the rear end of the object table 503, the boot sleeve 505 is fixedly connected with a boot sleeve connecting piece 509, the boot sleeve connecting piece 509 is sleeved on the object table 503, the boot sleeve connecting piece 509 is provided with a through hole, and a second knob 508 passes through the through hole to connect the boot sleeve connecting piece 509 with the object table 503;

[0011] Preferably, the base 1 is provided with a gear 602, an encoder and an encoder connecting piece 603, the gear 602 and the encoder are fixed through a gear shaft, and the gear 602 and the encoder are fixed on the base 1 through the encoder connecting piece 603, the lower side of the object table 503 is provided with a rack 601 capable of moving synchronously with the object table 503, and the gear 602 and the rack 601 are engaged;

[0012] Preferably, the base 1 is provided with a mounting mechanism, the mounting mechanism comprises a support bottom plate 1201, a lower support 1202, an upper support 1203, a support hinge shaft 1204 and a hinge shaft tightening bolt 1205, the lower support 1202 is welded on the support bottom plate 1201, the lower support 1202 is provided with an open slot, the lower end of the open slot is provided with a circular hole, the upper support 1203 is welded with one end of the support hinge shaft 1204, the other end of the support hinge shaft 1204 is arranged in the circular hole, and the hinge shaft tightening bolt 1205 is arranged on the lower support 1202 and perpendicular to the support hinge shaft 1204 and the open slot;

[0013] Preferably, the base 1 is fixedly connected with a supporting block 13, and the supporting block 13 is sleeved on the guide rod 2.

[0014] The present application has the following beneficial effects:

[0015] 1、 the working cylinder drives the object table to drive the last board to move, the head of the fur is sleeved on the last board, the working cylinder drives the last board to move, the fur fixed at the lower end of the nailing mechanism is completely stretched, and automatic nailing is performed after stretching to the position, the efficiency is higher than that of the prior art, the length of stretching is larger, and the stress of the fur during the stretching process is uniform, so that unevenness after drying is avoided.

[0016] 2、 the present application has the function of detecting the stretching length, the object table is provided with a rack, the movement of the object table drives the gear to move, and then the movement distance information is collected and transmitted through the encoder, so that the movement distance of the last board can be clearly reflected, so that the length of the fur being stretched is obtained, the fur is stopped from continuing to stretch when the fur is stretched to the maximum position, the maximum stretching length of the fur is realized, and the fur fiber is prevented from being broken due to excessive stretching, so that the fur is prevented from being broken after drying. BRIEF DESCRIPTION OF DRAWINGS

[0017] 1: base; 2: guide rod; 3: support rear end plate; 4: support front end plate; 501: first sliding block; 502: second sliding block; 503: object table; 504: handle bending plate; 505: boot; 506: working cylinder; 507: last plate; 508: second knob; 509: boot connector; 601: rack; 602: gear; 603: encoder connector; 701: nailing cylinder; 702: clamping cylinder; 703: clamping plate; 704: clamping end plate; 705: clamping end top plate; 706: punch block; 707: punch piece; 708: automatic in-place nail box; 709: backing plate; 7010: piston connecting bolt; 7011: first knob; 7012: knob compression spring; 7013: knob washer; 8: lifting cylinder; 9: elbow; 10: ear plate; 1101: shock absorbing cylinder; 1102: cover nut; 1103: support plate; 1201: support column bottom plate; 1202: lower support column; 1203: upper support column; 1204: support column hinge shaft; 1205: hinge shaft tightening bolt; 13: support block.

[0018] Figure 1 is a structural schematic diagram of the fur stretching and nailing machine of the present application.

[0019] Figure 2 is a front view of the fur stretching and nailing machine of the present application.

[0020] Figure 3 is a structural schematic diagram of the nailing mechanism in the fur stretching and nailing machine of the present application.

[0021] Figure 4 is a structural schematic diagram of the clamping plate in the fur stretching and nailing machine of the present application DETAILED DESCRIPTION

[0022] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0023] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present application, it should be noted that unless otherwise expressly specified and limited, the term "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0025] As Figures 1-2 shown, the skin and hair stretching and nailing machine of the present embodiment comprises a base 1, a working cylinder 506, a worktable 503, a last plate 507 and a nailing mechanism, the working cylinder 506 is fixed on the base 1, the end of the piston rod of the working cylinder 506 is fixedly connected with the worktable 503, for pushing the worktable 503 to move relative to the base 1, the worktable 503 is connected with the last plate 507, the front end of the last plate 507 is used for fixing the head of the skin and hair, the nailing mechanism is connected with the base 1 through a support and suspended above the last plate 507, the lower end of the nailing mechanism is used for fixing the tail of the skin and hair.

[0026] The fur stretching machine comprises a base 1, a support rear end plate 3 and a support front end plate 4 fixedly connected at both ends of the base 1, a guide rod 2 arranged in parallel with the base 1 and fixed at both ends between the support rear end plate 3 and the support front end plate 4, a first sliding block 501 and a second sliding block 502 sleeved on the guide rod 2, the first sliding block 501 and the second sliding block 502 fixedly connected to a carrier table 503 through screws, a working cylinder 506 fixed on the base 1, a handle bending plate 504 arranged at the rear end of the carrier table 503, a boot sleeve connecting piece 509 movably connected to the carrier table 503, a boot sleeve 505 fixed on the boot sleeve connecting piece 509, a through hole arranged on the boot sleeve connecting piece 509, a second knob 508 passing through the through hole to top the boot sleeve connecting piece 509 on the carrier table 503, a last plate 507 with the front end topped in the boot sleeve 505, the position of the boot sleeve 505 adjusted by loosening the second knob 508 and moving the boot sleeve connecting piece 509, so that the rear end of the last plate 507 is abutted on the handle bending plate 504, the end of a piston rod of the working cylinder 506 fixedly connected to the second sliding block 502, the working cylinder 506 forwardly pushing the second sliding block 502, the second sliding block 502 driving the carrier table 503 to slide forwardly, thereby driving the last plate 507 to slide forwardly, the carrier table 503 fixedly connected with a rack 601, the rack 601 also connected at one end to the support rear end plate 3 and at the other end to the carrier table 503 at a rack connecting piece connected with the boot sleeve connecting piece 509, so that the rack 601 can move synchronously with the carrier table 503 and the last plate 507, an encoder connecting piece 603 arranged on the base 1, a gear 602 and an encoder arranged on the encoder connecting piece 603, wherein the gear 602 and the encoder are coaxially connected through a gear shaft, the rack 601 and the gear 602 are in meshing engagement, the carrier table 503 driving the rack 601 to move, the rack 601 driving the gear 602 to rotate, the encoder converting angular displacement into linear displacement to obtain displacement distance information of the last plate 507, a support block 13 arranged on the base 1, the support block 13 sleeved on the guide rod 2 to improve the stability of the guide rod 2, the working cylinder 506 installed at the rear end on the support rear end plate 3 and at the front end on the support block 13, the end of the piston rod of the working cylinder 506 fixedly connected to the second sliding block 502 to improve the stability of the working cylinder 506.

[0027] As Figures 3-4As shown, the skin and fur stretching machine includes a nailing mechanism, the nailing mechanism includes a nailing cylinder 701, a clamping cylinder 702, a clamping end plate 704, a clamping end top plate 705, a punch block 706, a punch piece 707, an automatic in-place nail box 708, a backing plate 709, a pressing device, the clamping end top plate 705 is fixedly connected to the clamping end plate 704, and the two are perpendicular to each other, the backing plate 709 is fixed to the rear of the clamping end plate 704, the automatic in-place nail box 708 is fixed to the front of the clamping end plate 704, the nailing cylinder 701 and the clamping cylinder 702 are fixed on the clamping end top plate 705, the end of the piston rod of the nailing cylinder 701 is fixedly connected to the punch block 706, the lower end of the punch block 706 is fixedly connected to a plurality of punch pieces 707, the lower end of the punch piece 707 abuts on the inside of the nail skin nail of the automatic in-place nail box 708, the clamping cylinder 702 drives the clamping plate 703 to move up and down, the clamping plate 703 is a Z-shaped bent plate, two corners are respectively provided with two T-shaped grooves, the end of the piston rod of the clamping cylinder 702 is fixed at the upper T-shaped groove through a piston connecting bolt 7010, the clamping plate 703 is provided with an oblong hole, the pressing device includes a first knob 7011, a knob compression spring 7012, and a knob washer 7013, the knob compression spring 7012 is sleeved on the first knob 7011, the first knob 7011 passes through the oblong hole and is threadedly connected with the backing plate 709, and the knob compression spring 7012 can press the knob washer 7013 to press the clamping plate 703 on the backing plate 709, so that the clamping plate 703 can only move in the vertical direction, wherein the automatic in-place nail box 708 has a push-pull type box cover, and a compression spring is arranged in the inside, so that the inside nail skin nail can be pushed to below the punch piece 707, and the lower end of the backing plate 709 is provided with a groove, so that the last plate 507 can be limited in the groove, and can only move linearly with the loading platform 503.

[0028] The nailing mechanism is connected to the base 1 through the bent pipe 9, one end of the bent pipe 9 is fixed to the nailing mechanism, the bent pipe 9 is welded with an ear plate 10 at the bending part, the ear plate 10 is hinged at one end of the supporting plate 1103, the other end of the supporting plate 1103 is welded on the base 1, a lifting cylinder ear plate is welded below the base 1, the lifting cylinder 8 is connected to the lifting cylinder ear plate through a fine tooth bolt, the other end of the bent pipe 9 is hinged with the end of the piston rod of the lifting cylinder 8, the shock absorbing cylinder 1101 is installed on the supporting front end plate 4, the shock absorbing cylinder 1101 is fixedly connected with the cover nut 1102 at the front end, the shock absorbing cylinder 1101 has a damping shock absorbing device inside, when the nailing mechanism is lowered, the bent pipe 9 will collide with the shock absorbing cylinder 1101, and the damping shock absorbing device can play a damping role. The clamping plate 703 and the clamping cylinder 702 can also be provided with two groups, and are symmetrically arranged with the nailing cylinder 701 as the symmetric axis, and the guide rod 2 can also be provided with two, to increase the stability.

[0029] The base 1 is provided with a support bottom plate 1201, a lower support 1202 and an upper support 1203. The lower support 1202 is welded on the support bottom plate 1201. The lower support 1202 is provided with an open slot. The open slot is provided with a circular hole at the lower end. The upper support 1203 is welded with one end of a support hinge shaft 1204. The other end of the support hinge shaft 1204 is arranged in the circular hole. The lower support 1202 is provided with a hinge shaft tightening bolt 1205 in the direction perpendicular to the support hinge shaft 1204 and the open slot. The hinge shaft tightening bolt 1205 penetrates the lower support 1202. The hinge shaft tightening bolt 1205 is used to reduce the opening of the open slot. The rotation of the support hinge shaft 1204 can adjust the angle of the base 1 and the support bottom plate 1201, and realize the angle adjustment of the whole mechanism.

[0030] Work flow: Put the fur on the last board 507, the front end of the last board 507 is on the boot sleeve 505, loosen the second knob 508, move the boot sleeve connector 509 backward until the rear end of the last board 507 is on the handle bending plate 504, then tighten the second knob 508, put the soaked animal fur head on the front end of the last board 507, move the clamping plate 703 upward by the clamping cylinder 702, clamp the hind legs and tail in the T-shaped slot at the lower end of the clamping plate 703 of the nailing mechanism, at this time, start the working cylinder 506, the end of the piston rod of the working cylinder 506 drives the second sliding block 502 and the first sliding block 501 to move forward on the guide rod 2, the second sliding block 502 drives the object table 503 and the last board 507 to move forward, realize the stretching of the fur, the rack 601 under the object table 503 drives the gear 602 to rotate, the encoder converts the angular displacement into linear displacement to obtain the displacement of the last board 507, that is, the length of the stretched fur, when the fur is stretched to the appropriate position, the working cylinder 506 stops running, the stretching is completed, at this time, the punch piece 707 below the nailing cylinder 701 automatically drives the skin nail in the automatic nail box 708 to nail on the fur, start the lifting cylinder 8, the end of the piston rod of the lifting cylinder 8 is hinged with the lower end of the elbow pipe 9, the end of the piston rod of the lifting cylinder 8 retreats, drives the elbow pipe 9 to lift, thereby drives the nailing mechanism to lift, takes down the last board 507 with nailing fur, completes the stretching and nailing process, the end of the piston rod of the lifting cylinder 8 pushes out, drives the elbow pipe 9 to press down, drives the nailing mechanism to fall down, in order to place the nailing mechanism to reduce the vibration generated when falling, the shock absorbing cylinder 1101 is installed on the support front end plate 4, the shock absorbing cylinder 1101 reduces the vibration generated when the nailing mechanism falls through the internal damping shock absorbing device. When it is necessary to adjust the angle of the whole stretching and nailing machine and the installation equipment thereof, loosen the hinge shaft tightening bolt 1205, rotate the support hinge shaft 1204, the rotation of the support hinge shaft 1204 changes the angle of the whole mechanism and the support bottom plate 1201, after adjusting to the appropriate angle, tighten the hinge shaft tightening bolt 1205, fix the support hinge shaft 1204, the installation angle adjustment is completed.

[0031] The work cylinder drives the object table to drive the last plate to move, the fur head is sleeved on the last plate, the work cylinder drives the last plate to move, the fur completely stretched open is fixed at the lower end of the nailing mechanism, and automatic nailing is carried out after stretching in place, the efficiency is higher than that of the prior art, the length of the fur is larger, and the fur is uniformly stressed during stretching, unevenness after drying is avoided, the present application has the function of detecting the stretching length, the rack is arranged under the object table, the movement of the object table drives the gear to move, and then the movement distance information is collected and transmitted through the encoder, the movement distance of the last plate can be clearly reflected, so that the length of the fur is stretched, the fur is stopped from continuing to stretch when the fur is stretched to the maximum position, the fur fiber is prevented from being broken due to excessive stretching, and the fur is prevented from being broken after drying.

[0032] The present application is described by examples, and those skilled in the art know that various changes or equivalent replacements can be made to the features and examples without departing from the spirit and scope of the present application. In addition, the features and examples can be modified to adapt to specific conditions and materials under the guidance of the present application without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific examples disclosed herein, and all examples falling within the scope of the claims of the present application belong to the protection scope of the present application.

Claims

1. A hide and pelt stretching and pegging machine, characterized in that, It includes base (1), working cylinder (506), object table (503), last board (507) and nailing mechanism, the working cylinder (506) is fixed on the base (1), the end of the working cylinder (506) piston rod fixed connection object table (503), for pushing object table (503) relative to the base (1) moves, object table (503) is connected last board (507) on, last board (507) front end is used for fixing fur head; The nailing mechanism is connected on the base (1) through the support and hangs above the last board (507), the nailing mechanism includes clamping cylinder (702), clamping plate (703), card end panel (704), card end top plate (705), backing plate (709) and pressing device, the card end panel (704) upper end fixed connection card end top plate (705), both perpendicular to each other, the backing plate (709) is fixed to the card end panel (704) back, the card end top plate (705) is fixed with clamping cylinder (702), the clamping plate (703) is Z type bent plate, two corners of the clamping plate (703) are respectively provided with two T type grooves, the end of the clamping cylinder (702) piston rod is fixed in the upper T type groove through piston connecting bolt (7010), the clamping plate (703) is provided with long round hole, the pressing device is pressed on the backing plate (709) through the long round hole.

2. The hide and pelt stretching and dehorning machine according to claim 1, characterized in that The base (1) is provided with guide rod (2) above, the base (1) both ends are provided with support rear end plate (3) and support front end plate (4), the guide rod (2) both ends are fixed on the support rear end plate (3) and support front end plate (4), the object table (503) is fixedly connected with first sliding block (501) and second sliding block (502) below, the first sliding block (501) and the second sliding block (502) are sleeved on the guide rod (2), and the end of the working cylinder (506) piston rod is fixedly connected with the second sliding block (502).

3. The skin stretch and tacking machine of claim 2, wherein, The nailing mechanism further includes nailing cylinder (701), punch block (706), punch piece (707) and automatic in-place nail box (708), the automatic in-place nail box (708) is fixed in front of the card end panel (704), the card end top plate (705) is fixed with the nailing cylinder (701) and the clamping cylinder (702), the end of the nailing cylinder (701) piston rod is fixedly connected with the punch block (706), the punch block (706) lower end is fixedly connected with a plurality of punch pieces (707), and the punch piece (707) lower end abuts on the inside nail skin nail of the automatic in-place nail box (708).

4. The skin stretch and tacking machine of claim 3, wherein, The pressing device includes first knob (7011), knob compression spring (7012) and knob washer (7013), the knob compression spring (7012) is sleeved on the first knob (7011), the first knob (7011) passes through the long round hole and is threadedly connected with the backing plate (709), and the knob compression spring (7012) can press the knob washer (7013) to press the clamping plate (703) on the backing plate (709).

5. The hide and pelt stretching and dehorning machine according to claim 4, characterized in that The clamping cylinder (702), the clamping plate (703) and the guide rod (2) are provided with two groups.

6. The hide and pelt stretching and dehorning machine according to claim 3, characterized in that One end of the nailing mechanism is fixedly connected with the elbow pipe (9), the elbow pipe (9) is fixedly connected with the lug plate (10) at the bending part, the lug plate (10) is hinged at one end of the supporting plate (1103), the other end of the supporting plate (1103) is fixedly connected on the base (1), the lifting cylinder (8) is fixedly connected below the base (1), the other end of the piston rod of the lifting cylinder (8) is hinged to the other end of the elbow pipe (9), the damping cylinder (1101) is installed on the supporting front end plate (4), the damping cylinder (1101) is fixedly connected with the cover nut (1102) at the front end, and the damping cylinder (1101) is internally provided with a damping device.

7. The skin stretch and pinning machine of claim 1, wherein, The last board (507) is detachably connected to the object table (503) through the handle bending plate (504) and the boot cover (505), the handle bending plate (504) is fixed to the rear end of the object table (503), the boot cover (505) is fixed on the boot cover connecting piece (509), the boot cover connecting piece (509) is sleeved on the object table (503), the boot cover connecting piece (509) is provided with a through hole, and the second knob (508) passes through the through hole to connect the boot cover connecting piece (509) to the object table (503).

8. The pelt stretching and de-nailing machine according to claim 1, characterized in that The base (1) is provided with a gear (602), an encoder and an encoder connecting piece (603), the gear (602) and the encoder are fixed through a gear shaft, and the gear (602) and the encoder are fixed to the base (1) through the encoder connecting piece (603); the object table (503) is provided with a rack (601) capable of moving synchronously with the object table (503), and the gear (602) is engaged with the rack (601).

9. The skin stretch and pinning machine of claim 1, wherein, The base (1) is provided with a mounting mechanism, the mounting mechanism comprises a support bottom plate (1201), a lower support column (1202), an upper support column (1203), a support hinge shaft (1204) and a hinge shaft tightening bolt (1205), the lower support column (1202) is welded on the support bottom plate (1201), the lower support column (1202) is provided with an open slot, the lower end of the open slot is provided with a circular hole, the upper support column (1203) is welded with one end of the support hinge shaft (1204), the other end of the support hinge shaft (1204) is arranged in the circular hole, and the hinge shaft tightening bolt (1205) is arranged on the lower support column (1202) and perpendicular to the support hinge shaft (1204) and the open slot.

10. The skin stretch and pinning machine of claim 2, wherein, The base (1) is fixedly connected with a supporting block (13), and the supporting block (13) is sleeved on the guide rod (2).

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