One-way anti-skid tightening clamp

Abstract

The utility model relates to a one-way anti-skidding tightening clamp which comprises a tightening plate body, at least one clamping leather assembly located beside a guide rail is arranged on the front side of the tightening plate body, the clamping leather assembly comprises a clamping bottom plate and a clamping top plate, and a first tooth-shaped structure is arranged on the upper end face of the clamping bottom plate. The upper end face of the guide rail is located between the tooth crest and the tooth root of the first tooth-shaped structure, the clamping top plate is hinged to the toggling plate body, a first torsional spring is further arranged between the clamping top plate and the toggling plate body, and in the clamping state, the clamping top plate is obliquely arranged, and the inclination direction of the clamping top plate gradually inclines towards the toggling plate body from top to bottom. According to the tightening clamp disclosed by the utility model, the leather clamping assembly is arranged beside the guide rail, and the height position between the first tooth-shaped structure on the clamping bottom plate and the guide rail is controlled, so that leather can smoothly move to the clamping bottom plate from the guide rail; and the influence on subsequent smooth clamping caused by undesirable phenomena such as wrinkles and the like of the leather due to pushing of the tightening clamp is avoided.

Description

Technical Field

[0001] The utility model relates to the field of leather processing, in particular to a one-way anti-slip stretch clamp. Background Art

[0002] Drying fur is an essential step in fur processing. During the drying process, the fur needs to be secured to a stretcher. Existing stretchers consist of a gantry hanger, a stretcher frame located between the two arms of the gantry hanger, and a nail plate fixed to the frame to secure the fur. To use the stretcher, the frame is laid flat, and the fur is secured to the nail plate using multiple nails along its edges. The frame is then erected, stretched, and placed into the drying device. However, this stretching machine has many technical defects during use: ① It is necessary to manually fix the nails on the fur one by one, and after the fur is dried, the nails need to be removed manually one by one, which is inconvenient to operate, reduces production efficiency, and causes certain damage to the fur; ② The upper and lower stretching plate frames are separated by a cylinder during the stretching process to achieve the fur stretching effect. The tensile strength is high and it is easy to cause damage to the fur; ③ The fur processing process is a circular transmission method. Each production line can only proceed to the next drying operation after completing the fur fixation and stretching treatment. Even if multiple groups of fur are fixed, they can only wait until the previous stretching treatment is completed before continuing to the next operation, which seriously affects production efficiency and restricts the development of the enterprise.

[0003] Patent CN209162101U proposes a clamp for an automatic leather stretching machine. The clamp is installed on a guide rail and is driven to move on the guide rail by a linear drive mechanism. The clamp includes a clamp body, which has a through hole for the guide rail to pass through and move. One side of the clamp body has an opening for leather to enter, and a leather clamp is also provided at the opening on the clamp body.

[0004] In the above patent, when fixing the leather, the leather is clamped by using the toothed structure on the bottom surface of the leather clamping block and the lower surface of the opening of the clamping body. This clamping method requires the leather to enter the opening of the clamping body along the leather guide block, that is, the leather at the clamping position will be out of the guide rail. This clamping method has certain defects when fixing the leather: when the leather to be clamped is soft in texture or the leather itself is thin, the clamping body cannot ensure that the leather can smoothly enter the opening of the clamping body along the leather guide block when it moves in one direction. The side of the leather may be wrinkled under the push of the leather guide block, and manual assistance is required to clamp the leather, which is very troublesome. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a one-way anti-skid clamp which can automatically and stably clamp leather smoothly.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a one-way anti-slip clamp, which is arranged on a horizontal guide rail and is driven by a first linear brake to move horizontally along the guide rail. The innovation of the one-way anti-slip clamp is that: the one-way anti-slip clamp includes

[0007] A tension plate body, wherein a through hole is formed in the tension plate body for allowing the guide rail to pass through and move, the tension plate body is sleeved outside the guide rail, and a docking groove is formed on the tension plate body for cooperating with the first linear brake;

[0008] The front side of the stretching plate body is provided with at least one leather clamping assembly located beside the guide rail, and the leather clamping assembly includes a clamping bottom plate located on the lower side and a clamping top plate located on the upper side, a first tooth-shaped structure is provided on the upper end surface of the clamping bottom plate, and the upper end surface of the guide rail is between the tooth top and the tooth root of the first tooth-shaped structure, the clamping top plate is vertically arranged above the clamping bottom plate and hinged with the stretching plate body, and a first torsion spring is further provided between the clamping top plate and the stretching plate body, and the leather is clamped by the joint cooperation of the clamping top plate and the clamping bottom plate, and in the clamping state, the clamping top plate is tilted, and its tilting direction is gradually tilted from top to bottom toward the stretching plate body, and the clamping top plate is driven by a second linear drive to swing and fit into or away from the clamping bottom plate;

[0009] A one-way stop assembly is provided on the rear side of the stretch plate body, and the one-way stop assembly includes a stop plate provided under the guide rail, the middle position of the stop plate is hinged to the stretch plate body, and a second tooth-shaped structure is also provided on the upper end surface of the stop plate, and a second torsion spring is also provided between the stop plate and the stretch plate body to keep the second tooth-shaped structure in contact with the lower end surface of the guide rail, and the stop plate is driven by a third linear drive to swing up and down along the hinge point between the stop plate and the stretch plate body, and drive the second tooth-shaped structure to fit into or away from the guide rail.

[0010] Furthermore, a guide slope is provided on the side of the clamping base away from the main body of the stretcher, and the inclination direction of the guide slope is gradually downward from the side of the guide slope close to the main body of the stretcher, and the height of the bottom end of the guide slope is lower than the height of the upper end surface of the guide rail.

[0011] Furthermore, there are two leather clamping components, which are respectively arranged on both sides of the guide rail.

[0012] Furthermore, the docking groove is arranged on the upper end surface of the tension plate body.

[0013] Furthermore, a pressure plate assembly cooperating with the stop plate is provided on the tension plate body at the stop plate. The pressure plate assembly includes a pressure plate seat, in which a pressure plate that can move up and down is provided. A cavity is provided in the pressure plate seat for accommodating the installation of the pressure plate and for moving up and down. The bottom end of the pressure plate is movably cooperated with the stop plate, and the top end of the pressure plate is driven up and down by a third linear drive, and drives the stop plate to swing. A limiting assembly is also provided between the pressure plate and the pressure plate seat.

[0014] Furthermore, the limit assembly includes a limit bolt, which extends horizontally from the outside of the pressure plate seat to the cavity inside the pressure plate seat, and the limit bolt is threadedly fixed to the pressure plate seat. A through hole is opened on the pressure plate to allow the limit bolt to pass through, and the through hole is a waist-shaped hole, and the through hole extends in the vertical direction.

[0015] Furthermore, the top end of the pressing plate has a horizontally bent section, so that the pressing plate as a whole forms an inverted L-shaped structure.

[0016] Furthermore, there are two pressing plate assemblies, which are respectively located on both sides of the tension plate body.

[0017] The advantages of the present invention are that the leather clamping component is arranged beside the guide rail and the height position between the first toothed structure on the clamping base and the guide rail is controlled, so that the leather can be smoothly moved from the guide rail to the clamping base, thereby avoiding the leather from wrinkling or other undesirable phenomena caused by the push of the clamp, which affects the subsequent smooth clamping.

[0018] The design of the guiding slope on the clamping bottom plate is to play a certain guiding role for the leather, so that the leather can smoothly enter between the clamping bottom plate and the clamping top plate, so as to smoothly clamp the leather later.

[0019] The design of the limit assembly, through the cooperation of the limit bolt and the through hole on the pressure plate, plays a guiding role for the pressure plate when it is raised and lowered, and also plays a limiting role on the up and down stroke of the pressure plate.

[0020] The design of the bending section at the top of the pressure plate is to increase the contact area between the pressure plate and the third linear drive when the third linear drive drives the pressure plate to move up and down, so that the pressure plate can move up and down smoothly, and the stop plate can swing smoothly.

[0021] Two pressure plate assemblies are used to cooperate with the anti-recognition plate to realize the up and down swing of the anti-recognition plate, making the anti-recognition plate more stable when swinging up and down, and avoiding the phenomenon of jamming between the anti-recognition plate and the tension plate body caused by unilateral drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the one-way anti-slip clamp of the present invention.

[0023] Figure 2 It is a front view of the one-way anti-slip clamp of the utility model.

[0024] Figure 3 It is a top view of the one-way anti-slip clamp of the present invention. DETAILED DESCRIPTION

[0025] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0026] like Figure 1-Figure 3 The one-way anti-slip clamp shown is arranged on a horizontal guide rail 1 and is driven by a first linear actuator to move horizontally along the extension direction of the guide rail 1. The first linear actuator can be a horizontally arranged cylinder or a traveling carriage that moves horizontally on the guide rail 1.

[0027] One-way non-slip clamp included

[0028] A stretcher body 2 is provided with a through hole in the stretcher body 2 for the guide rail 1 to pass through and move. The stretcher body 2 is mounted on the outside of the guide rail 1 and slides along the guide rail 1. The stretcher body 2 is also provided with a docking groove 201 for connecting with the first linear brake. The docking groove 201 is provided on the upper end face of the stretcher body 2. The docking groove 201 is designed on the upper end face of the stretcher body 2, thereby facilitating the subsequent docking of the first linear drive with the stretcher body 2 to drive the stretcher body 2 to slide along the guide rail 1. When the first linear drive cooperates with the stretcher body 2, a vertically arranged cylinder is added to the front side of the first linear drive, and the docking between the first linear drive and the stretcher body 2 is achieved by inserting the piston rod of the cylinder into the docking groove 201.

[0029] The front side of the tensioning plate body 2 is provided with a leather clamping assembly located beside the guide rail. There are two leather clamping assemblies, one on each side of the guide rail 1. The two leather clamping assemblies distributed on both sides of the guide rail 1 cooperate to clamp the leather at the same clamping point, which provides a more stable clamping of the leather and avoids the leather from falling off between the clamps when the leather is stretched, thus ensuring a stable clamping of the leather.

[0030] The leather clamping assembly includes a clamping base plate 201 located on the lower side and a clamping top plate 203 located on the upper side. One side of the clamping base plate 201 is fixedly connected to the stretch plate body 2 by bolts. A first tooth-shaped structure is provided on the upper end face of the clamping base plate 202, and the upper end face of the guide rail 2 is located between the tooth top and the tooth root of the first tooth-shaped structure.

[0031] The clamping top plate 203 is vertically arranged above the clamping bottom plate 201 and is hinged to the stretch plate body 2. A horizontally extending outward hinge shaft 204 is also provided on the stretch plate body 2. A through hole for the hinge shaft 204 to pass through is also provided on the clamping top plate 203. The clamping top plate 203 is directly mounted on the hinge shaft and rotates and swings along the hinge shaft 204. A first torsion spring is also provided between the clamping top plate 203 and the stretch plate body 2. The first torsion spring is directly mounted on the hinge shaft. On the connecting shaft 204, the leather is clamped by the cooperation of the clamping top plate 203 and the clamping bottom plate 201, and when in the clamping state, the clamping top plate 203 is tilted, and the tilting direction of the clamping top plate 203 is gradually tilted from top to bottom toward the direction of the stretcher body 2. The clamping top plate 203 is driven by the second linear drive to swing along the connection point between the clamping top plate 203 and the hinge shaft 204, so that the clamping top plate 203 is close to or away from the clamping bottom plate 201. The second linear drive is a vertically arranged cylinder, and a flat plate is also provided at the bottom end of the second linear drive. Through the cooperation of the flat plates, the two clamping top plates 203 on both sides can be pressed down at the same time. When cooperating, the second linear drive drives the flat plate downward, and the flat plate will press on the top of the clamping top plate 203, and drive the top of the clamping top plate 203 to move downward together. Since the clamping top plate 203 is arranged at an angle, when the top of the clamping top plate 203 moves downward, the bottom of the clamping top plate 203 moves upward, thereby making the clamping top plate 203 move away from the clamping bottom plate 201. When the second linear drive drives the flat plate upward, the force applied to the top of the clamping top plate 203 disappears, and the clamping top plate 203 will return to its original position under the action of the first torsion spring and continue to fit the clamping bottom plate 201.

[0032] A guide slope is also provided on the side of the clamping base plate 202 away from the main body 2 of the clamping plate. The guide slope is inclined gradually downward from the side of the guide slope close to the main body 2 of the clamping plate. The height of the bottom end of the guide slope is lower than the height of the upper end surface of the guide rail 1. The guide slope on the clamping base plate 202 is designed to guide the leather to a certain extent, so that the leather can smoothly enter between the clamping base plate 202 and the clamping top plate 203, so as to achieve smooth clamping of the leather.

[0033] A one-way backstop assembly is provided on the rear side of the plate body 2. The assembly comprises a backstop plate 205 positioned below the guide rail 1. The backstop plate 205 is hingedly connected to the plate body at its center. A second tooth-shaped structure is provided on the upper end surface of the backstop plate 205. A second torsion spring is provided between the backstop plate 205 and the plate body 2 to maintain the second tooth-shaped structure in contact with the lower end surface of the guide rail 1. The backstop plate 205 is driven by a third linear actuator, a pneumatic cylinder, to swing up and down along the hinge point between the backstop plate and the plate body, thereby moving the second tooth-shaped structure into or away from the guide rail.

[0034] A pressure plate assembly is provided on the main body 2 at the stop plate 205 to cooperate with the stop plate. There are two pressure plate assemblies, one on each side of the main body 2. The two pressure plate assemblies cooperate with the stop plate 205 to achieve the up and down swinging of the stop plate 205, making the stop plate 205 more stable when swinging up and down, and avoiding the phenomenon of the stop plate 205 and the main body 2 being stuck due to unilateral driving.

[0035] The pressure plate assembly includes a pressure plate seat 206, which is integrally formed with the stretch plate body 2. A pressure plate 207 that can move up and down is arranged in the pressure plate seat 206. The pressure plate 207 is a vertical flat plate. A cavity is provided in the pressure plate seat 206 for accommodating the pressure plate 207 to be installed and move up and down. The bottom end of the pressure plate 207 is movably connected to the backstop plate 205. The connection is specifically as follows: a pressure shaft that cooperates with the pressure plate 207 is also provided at the side end of the backstop plate 205. The pressure shaft extends horizontally into the cavity of the pressure plate seat 206. The bottom end of the pressure plate 207 is in contact with the pressure shaft, and the pressure shaft is synchronously downwardly pressed by the downward movement of the pressure plate 207, thereby realizing the swing of the backstop plate 205.

[0036] The top of the pressure plate 207 is driven by the third linear drive to move up and down, and drives the stop plate 205 to swing. A transition pressure plate is also provided at the lower end of the third linear drive. The transition pressure plate is in an inverted U shape and cooperates with the two pressure plates 207 respectively, so that only one third linear drive is needed to drive the two pressure plates 207 downward at the same time.

[0037] A limit assembly is also provided between the pressure plate 207 and the pressure plate seat 206. The limit assembly includes a limit bolt 208, which extends horizontally from the outside of the pressure plate seat 206 into the cavity inside the pressure plate seat 206. The limit bolt 208 is threadedly fixed to the pressure plate seat 206. A through hole for the limit bolt 208 to pass through is provided on the pressure plate 207. The through hole is a waist-shaped hole and extends in the vertical direction. The design of the limit assembly, through the cooperation of the limit bolt 208 and the through hole on the pressure plate 207, guides the pressure plate 207 when it is lifted up and down, and also limits the stroke of the pressure plate 207, thereby preventing the pressure plate 207 from exceeding the stroke limit and causing deviation in the cooperation between the pressure plate 207 and the stop plate 205.

[0038] The top of the pressure plate 207 has a horizontally bent section 209, forming an inverted L-shaped structure. The bent section 209 bends toward the side away from the tension plate body 2. The bent section 209 at the top of the pressure plate 207 is designed to increase the contact area between the pressure plate 207 and the third linear actuator when the third linear actuator drives the pressure plate 207 to move up and down, thereby allowing the pressure plate 207 to move up and down smoothly and the backstop plate 205 to swing smoothly.

[0039] Working principle: When clamping leather, first, the clamping top plate 203 is kept away from the clamping bottom plate 202 under the action of the second linear drive, and the second tooth structure on the backstop plate 205 is kept away from the guide rail under the action of the third linear drive. Then, the clamping body 2 moves toward the leather along the guide rail 1 under the action of the first linear drive, until the clamping body 2 moves to the leather, the leather will enter the upper end surface of the clamping bottom plate 202, and then the second linear drive goes up, and the clamping top plate 203 is reset under the action of the first torsion spring, and cooperates with the clamping bottom plate 202 to clamp the leather, and then The first linear drive pulls the clamp body 2 in the opposite direction, causing the clamp body 2 to move away from the leather, thereby tightening the leather. After moving into place, the third linear drive moves upward, and the stop plate 205 is reset under the action of the second torsion spring, so that the second toothed structure fits the lower end face of the guide rail 1. The leather deterioration of the second toothed structure realizes the one-way stop fixation of the clamp body 2, preventing the clamp body 2 from moving toward the leather. Then the first linear drive contacts the connection with the clamp body 2, and the clamp body 2 remains in position on the guide rail 1 with the cooperation of the second toothed structure, thereby tightening the leather.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A one-way anti-slip clamp, which is arranged on a horizontal guide rail and is driven by a first linear brake to move horizontally along the guide rail, characterized in that: One-way non-slip clamp included A tension plate body, wherein a through hole is formed in the tension plate body for allowing the guide rail to pass through and move, the tension plate body is sleeved outside the guide rail, and a docking groove is formed on the tension plate body for cooperating with the first linear brake; The front side of the stretching plate body is provided with at least one leather clamping assembly located beside the guide rail, and the leather clamping assembly includes a clamping bottom plate located on the lower side and a clamping top plate located on the upper side, a first tooth-shaped structure is provided on the upper end surface of the clamping bottom plate, and the upper end surface of the guide rail is between the tooth top and the tooth root of the first tooth-shaped structure, the clamping top plate is vertically arranged above the clamping bottom plate and hinged with the stretching plate body, and a first torsion spring is further provided between the clamping top plate and the stretching plate body, and the leather is clamped by the joint cooperation of the clamping top plate and the clamping bottom plate, and in the clamping state, the clamping top plate is tilted, and its tilting direction is gradually tilted from top to bottom toward the stretching plate body, and the clamping top plate is driven by a second linear drive to swing and fit into or away from the clamping bottom plate; A one-way stop assembly is provided on the rear side of the stretch plate body, and the one-way stop assembly includes a stop plate provided under the guide rail, the middle position of the stop plate is hinged to the stretch plate body, and a second tooth-shaped structure is also provided on the upper end surface of the stop plate, and a second torsion spring is also provided between the stop plate and the stretch plate body to keep the second tooth-shaped structure in contact with the lower end surface of the guide rail, and the stop plate is driven by a third linear drive to swing up and down along the hinge point between the stop plate and the stretch plate body, and drive the second tooth-shaped structure to fit into or away from the guide rail.

2. The one-way anti-slip clamp according to claim 1, characterized in that: A guide slope is also provided on the side of the clamping base away from the main body of the stretcher, and the inclination direction of the guide slope is gradually downward from the side of the guide slope close to the main body of the stretcher, and the height of the bottom end of the guide slope is lower than the height of the upper end face of the guide rail.

3. The one-way anti-slip clamp according to claim 1, characterized in that: There are two leather clamping components, which are respectively arranged on both sides of the guide rail.

4. The one-way anti-slip clamp according to claim 1, characterized in that: The docking groove is arranged on the upper end surface of the stretch plate body.

5. The one-way anti-slip clamp according to claim 1, characterized in that: A pressure plate assembly cooperating with the stop plate is also provided on the tension plate body at the stop plate. The pressure plate assembly includes a pressure plate seat, and a pressure plate that can move up and down is provided in the pressure plate seat. A cavity is provided in the pressure plate seat for accommodating the pressure plate to be installed and move up and down. The bottom end of the pressure plate is movably coordinated with the stop plate, and the top end of the pressure plate is driven up and down by a third linear drive, and drives the stop plate to swing. A limiting assembly is also provided between the pressure plate and the pressure plate seat.

6. The one-way anti-slip clamp according to claim 5, characterized in that: The limiting assembly includes a limiting bolt, which extends horizontally from the outside of the pressure plate seat to the cavity inside the pressure plate seat, and the limiting bolt is threadedly fixed to the pressure plate seat. A through hole is opened on the pressure plate to allow the limiting bolt to pass through, and the through hole is a waist-shaped hole. The through hole extends in the vertical direction.

7. The one-way anti-slip clamp according to claim 5, characterized in that: The top end of the pressing plate has a horizontally bent section, so that the pressing plate as a whole forms an inverted L-shaped structure.

8. The one-way anti-slip clamp according to claim 5, characterized in that: There are two pressing plate assemblies, which are respectively located on both sides of the tension plate body.

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