A leather feed assisting apparatus

Abstract

The present application relates to a kind of leather feed auxiliary equipment.The leather feed auxiliary equipment includes first conveyor belt, two second conveyor belts, two second conveyor belts are arranged in the two sides of first conveyor belt respectively;The bearing surface of two second conveyor belts gradually changes from the inclined arrangement of material receiving end to the horizontal arrangement of discharge end;The side of second conveyor belt material receiving end close to first conveyor belt is higher than its side away from first conveyor belt, and lower than or flush with the material receiving end of the horizontal arrangement of first conveyor belt;The discharge end of second conveyor belt is at the same height with the discharge end of the horizontal arrangement of first conveyor belt;Leather can eliminate at least part of wrinkle by relying on its own gravity in the process of moving to preset position by first conveyor belt and second conveyor belt cooperation promotion.Leather can be laid on the leather feed auxiliary equipment by single worker, and then the leather is transported to the conveyor belt of leather material surface treatment equipment connected with it by using leather feed auxiliary equipment, which saves labor.

Description

Technical Field

[0001] This invention relates to the field of leather processing equipment technology, specifically to an auxiliary device for conveying leather that is about to be processed, such as leather that is about to be coated, to a subsequent leather material surface treatment device. Background Technology

[0002] Currently, leather surface treatment equipment (such as roller coaters) used in the leather industry has a fixed worktable at the feeding point. During the feeding process, workers first need to push the leather onto a conveyor belt driven by rollers. However, leather is a natural material with various shapes. During the feeding process, workers also need to continuously smooth out the wrinkles around the leather. If the wrinkles are not smoothed out in time, the processed leather will have defects, making it unusable in subsequent processes and resulting in waste of raw materials.

[0003] Additionally, surface treatment equipment for general leather materials has a wide working range, requiring two people to work together to complete the feeding and laying of leather. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a leather feeding auxiliary device that overcomes or at least partially solves the above problems. Using this leather feeding auxiliary device, single-person operation can achieve leather feeding and laying, and it can also effectively eliminate at least some wrinkles in the leather.

[0005] The leather feeding auxiliary equipment includes:

[0006] A central conveying device, the central conveying device including a first conveyor belt, the first conveyor belt being capable of causing the leather to move toward a preset position;

[0007] Two auxiliary flattening devices are provided. Each of the two auxiliary flattening devices includes a first rotating roller, a second rotating roller, and a second conveyor belt that passes around the first rotating roller and the second rotating roller. The second conveyor belt rotates under the drive of the first rotating roller or the second rotating roller. The second conveyor belts of the two auxiliary flattening devices are respectively arranged on both sides of the first conveyor belt and can work together with the first conveyor belt to move the leather to a preset position.

[0008] The bearing surfaces of both second conveyor belts gradually change from an inclined arrangement at the receiving end to a horizontal arrangement at the discharge end; the side of the receiving end of the second conveyor belt closer to the first conveyor belt is higher than the side farther from the first conveyor belt, and lower than or at the same height as the horizontally arranged receiving end of the first conveyor belt; the discharge end of the second conveyor belt is at the same height as the horizontally arranged discharge end of the first conveyor belt; during the process of the leather being moved to the preset position by the cooperation of the first and second conveyor belts, the leather can eliminate at least some wrinkles by its own weight.

[0009] In one embodiment, the bearing surface of the first conveyor belt is arranged horizontally.

[0010] In one embodiment, the second conveyor belt is an elastic conveyor belt, and the non-load-bearing surface of the second conveyor belt is formed with at least two annular elastic constraint strips extending along the rotation direction of the conveyor belt; both the first rotating roller and the second rotating roller are formed with constraint grooves that cooperate with the annular constraint strips.

[0011] In one embodiment, the second conveyor belt rotates under the drive of the first rotating roller, and the discharge end of the second conveyor belt covers the first rotating roller, which is arranged horizontally.

[0012] In one embodiment, the receiving end of the second conveyor belt covers the second rotating roller, which is arranged at an angle, and the projection of the second rotating roller onto the horizontal plane is parallel to the projection of the first rotating roller onto the horizontal plane.

[0013] In one embodiment, the width of the receiving end of the second conveyor belt is greater than the width of its discharge end; the distance between the receiving end of the second conveyor belt and the first conveyor belt is less than the distance between the discharge end of the second conveyor belt and the first conveyor belt.

[0014] This embodiment of the leather feeding auxiliary equipment allows a single operator to lay the leather on the feeding end of the equipment and then transport it to the conveyor belt of a leather material surface treatment device (such as a roller coater) that is connected to the equipment, saving labor. Simultaneously, the leather feeding auxiliary equipment can effectively eliminate at least some wrinkles in the leather. Attached Figure Description

[0015] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0016] Figure 1 This is a schematic diagram of an exemplary embodiment of a leather feeding auxiliary device of the present invention;

[0017] Figure 2 for Figure 1 The image shows a front view of the leather feeding auxiliary equipment.

[0018] Figure 3 for Figure 1 The top view of the leather feeding auxiliary equipment shown;

[0019] Figure 4 for Figure 1 The diagram shown is an exploded view of the leather feeding auxiliary equipment.

[0020] Figure 5 This is a schematic diagram of the structure of the first rotating roller and its support.

[0021] Figure 6 This is a schematic diagram of the structure of the second rotating roller and its support.

[0022] Explanation of reference numerals in the attached drawings: 1. Central conveyor device; 2. Auxiliary flattening device; 3. First conveyor belt; 4. Driving roller; 5. Driven roller; 6. Support 1; 7. First rotating roller; 8. Second rotating roller; 9. Second conveyor belt; 10. Support 2; 11. Support 3; 12. Constraint groove; 13. Power source. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention. Those skilled in the art can make various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

[0024] The terms “center,” “longitudinal,” “lateral,” “length,” “upper,” “lower,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “axial,” “radial,” and “circumferential,” etc., mentioned or possibly used in the description of this invention, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, the terms "comprising," "including," and any variations thereof are intended to cover non-exclusive inclusion.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] A leather feeding auxiliary device according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0028] See Figures 1 to 4 According to an embodiment of the present invention, a leather feeding auxiliary device includes a central conveying device 1 and two auxiliary flattening devices 2. The central conveying device 1 and the two auxiliary flattening devices 2 can work together to move the leather to a preset position, for example, to move the leather to the feeding end of a leather material surface treatment device (such as a roller coating machine).

[0029] The central conveying device 1 includes a first conveyor belt 3, which can move the leather to a preset position. The first conveyor belt 3 can pass around the driving roller 4 and the driven roller 5, and rotate under the drive of the driving roller 4. The first conveyor belt 3 can be a PVC conveyor belt or other conveyor belts with a high coefficient of friction between the bearing surface and the leather. The driving roller 4 and the driven roller 5 are supported by a bracket 6.

[0030] Both auxiliary flattening devices 2 include a first rotating roller 7, a second rotating roller 8, and a second conveyor belt 9 that winds around the first rotating roller 7 and the second rotating roller 8. The second conveyor belt 9 rotates under the drive of the first rotating roller 7 or the second rotating roller 8. The first rotating roller 7 and the second rotating roller 8 are supported by bracket 2 10 and bracket 3 11, respectively. The second conveyor belts 9 of the two auxiliary flattening devices 2 are respectively arranged on both sides of the first conveyor belt 3 and can work in conjunction with the first conveyor belt 3 to move the leather to a preset position.

[0031] Specifically, the bearing surfaces of the two second conveyor belts 9 gradually change from an inclined arrangement at the receiving end to a horizontal arrangement at the discharge end. The side of the receiving end of the second conveyor belt 9 closer to the first conveyor belt 3 is higher than the side farther from the first conveyor belt 3, that is, the receiving ends of the two second conveyor belts 9 are arranged in a figure-eight shape. The side of the receiving end of the second conveyor belt 9 closer to the first conveyor belt 3 is lower than the horizontally arranged receiving end of the first conveyor belt 3 or is at the same height as the horizontally arranged receiving end of the first conveyor belt 3. The feeding end of the first conveyor belt 3 and the receiving ends of the two second conveyor belts 9 together form the feeding end of the leather feeding auxiliary equipment. The feeding end of the leather feeding auxiliary equipment is high in the middle and low on both sides. Compared with the leather material surface treatment equipment (such as roller coating machines) currently used in the leather industry, the width of the leather feeding area is reduced. After adjusting to a suitable leather feeding and laying width, a single person can also lay the leather on the feeding end of the leather feeding auxiliary equipment. Since the discharge end of the second conveyor belt 9 is at the same height as the discharge end of the first conveyor belt 3 which is arranged horizontally, the leather can be transported to the conveyor belt of the leather material surface treatment equipment (such as a roller coating machine) that is connected to the leather feeding auxiliary equipment.

[0032] Furthermore, since the bearing surfaces of both second conveyor belts 9 gradually change from an inclined arrangement at the receiving end to a horizontal arrangement at the discharge end, the leather can also eliminate at least some wrinkles by its own weight as it is moved to the preset position by the combined action of the first conveyor belt 3 and the second conveyor belt 9. Of course, the receiving end of the second conveyor belt 9 needs to be selected with a suitable inclination angle, and the coefficient of friction between the second conveyor belt 9 and the leather needs to be appropriate, so that the component of the weight of the leather laid at the receiving end of the second conveyor belt 9 inclined downward along the second conveyor belt 9 is greater than the frictional force between the leather and the second conveyor belt 9. If the leather has wrinkles, the leather wrinkled to the lower edge can slide downward along the second conveyor belt 9 under the pull of gravity until the wrinkles are eliminated. If the portion of leather laid at the receiving end of the first conveyor belt 3 has wrinkles, then the portion of leather laid at the receiving end of the corresponding second conveyor belt 9 can slide downward along the second conveyor belt 9 under the pull of gravity until the wrinkles are eliminated. Of course, the coefficient of friction between the first conveyor belt 3 and the leather must be appropriate, or both portions of leather laid at the receiving ends of the corresponding second conveyor belt 9 can slide downward along the second conveyor belt 9 under the pull of gravity until the wrinkles are eliminated.

[0033] In this embodiment, the bearing surface of the first conveyor belt 3 is arranged horizontally. It should be understood that the bearing surface of the first conveyor belt 3 can also gradually rise from its receiving end to its discharge end, or gradually descend from its receiving end to its discharge end, which can be set according to the actual situation.

[0034] Since the bearing surfaces of both second conveyor belts 9 need to gradually transition from an inclined arrangement at the receiving end to a horizontal arrangement at the discharge end, in order to prevent the second conveyor belts 9 from deviating, in this embodiment, the second conveyor belts 9 are made of elastic conveyor belts, such as soft cloth. The non-bearing surface of the second conveyor belts 9 has at least two annular elastic constraint strips (not shown in the figure) extending along the rotation direction of the conveyor belt. The first rotating roller 7 and the second rotating roller 8 both have constraint grooves 12 that cooperate with the annular constraint members, such as... Figure 5 , Figure 6 As shown. The second conveyor belt 9 is prevented from deviating by utilizing the cooperation between the annular elastic constraint strip and the constraint groove 12, as well as the deformable characteristic of the elastic conveyor belt. Preferably, each of the second conveyor belts 9 has two annular elastic constraint strips on its non-load-bearing surface, located near the edges of both sides of the non-load-bearing surface. Correspondingly, each of the first rotating roller 7 and the second rotating roller 8 has two constraint grooves 12. The annular elastic constraint strip can be made of annular rubber.

[0035] In this embodiment, the second conveyor belt 9 rotates under the drive of the first rotating roller 7, and the discharge end of the second conveyor belt 9 covers the first rotating roller 7, which is horizontally arranged. Since the second conveyor belt 9 needs to work in conjunction with the first conveyor belt 3 to move the leather to a preset position, the component speed of the bearing surface of the second conveyor belt 9 in the conveying direction of the first conveyor belt 3 needs to be the same as the rotational speed of the first conveyor belt 3. Having the horizontally arranged first rotating roller 7 drive the second conveyor belt 9 makes it easier to adjust the component speed of the bearing surface of the second conveyor belt 9 in the conveying direction of the first conveyor belt 3. The first rotating roller 7 and the drive roller 4 can be driven by two different power sources 13, such as motors, or by the same power source 13; this embodiment does not limit this.

[0036] In this embodiment, the receiving end of the second conveyor belt 9 covers the second rotating roller 8, which is arranged at an angle. The projection of the second rotating roller 8 onto the horizontal plane is parallel to the projection of the first rotating roller 7 onto the horizontal plane. That is, the receiving end of the second conveyor belt 9 is arranged at an angle by using the second rotating roller 8.

[0037] In this embodiment, the width of the receiving end of the second conveyor belt 9 is greater than the width of its discharge end. In order to eliminate or reduce the tendency of the bearing surface of the second conveyor belt 9 to shrink and recover from the receiving end to the discharge end, thereby forming a gathering of leather, the distance between the receiving end of the second conveyor belt 9 and the first conveyor belt 3 is less than the distance between the discharge end of the second conveyor belt 9 and the first conveyor belt 3. That is, the bearing surface of the second conveyor belt 9 is offset outward to eliminate or reduce the tendency of the bearing surface to shrink and recover, thereby avoiding the formation of new wrinkles due to the shrinking of leather.

[0038] This embodiment of the leather feeding auxiliary equipment allows a single operator to lay the leather on the feeding end of the equipment and then transport it to the conveyor belt of a leather material surface treatment device (such as a roller coater) that is connected to the equipment, saving labor. Simultaneously, the leather feeding auxiliary equipment can effectively eliminate at least some wrinkles in the leather.

Claims

1. A leather feed assisting apparatus characterized by, The utility model relates to a leather flattening device, comprising: a middle conveying device, which comprises a first conveying belt capable of moving the leather to a preset position; two auxiliary flattening devices, each of which comprises a first rotating roller, a second rotating roller, and a second conveying belt around the first rotating roller and the second rotating roller, which rotates under the drive of the first rotating roller or the second rotating roller; the second conveying belts of the two auxiliary flattening devices are arranged on the two sides of the first conveying belt respectively and can move the leather to the preset position together with the first conveying belt; the bearing surfaces of the two second conveying belts gradually change from the inclined arrangement of the receiving end to the horizontal arrangement of the discharging end; the side of the receiving end of the second conveying belt close to the first conveying belt is higher than the side away from the first conveying belt and is lower than or at the same height as the receiving end of the first conveying belt arranged horizontally; the discharging end of the second conveying belt is at the same height as the discharging end of the first conveying belt arranged horizontally; in the process of moving the leather to the preset position together with the first conveying belt, the leather can eliminate at least part of the wrinkles by relying on its own gravity; the second conveying belt is an elastic conveying belt; the width of the receiving end of the second conveying belt is greater than that of the discharging end; the distance between the receiving end of the second conveying belt and the first conveying belt is less than that between the discharging end of the second conveying belt and the first conveying belt.

2. The leather feed assisting apparatus according to claim 1, characterized by: The bearing surface of the first conveying belt is arranged horizontally.

3. Leather feed assisting apparatus according to claim 1 or 2, characterized in that: The non-bearing surface of the second conveying belt is formed with at least two annular elastic constraint strips extending in the rotation direction of the conveying belt; the first rotating roller and the second rotating roller are each formed with a constraint groove matched with the annular elastic constraint strip.

4. The leather feed assisting apparatus according to claim 3, characterized by: The second conveying belt rotates under the drive of the first rotating roller, and the discharging end of the second conveying belt covers the first rotating roller, which is arranged horizontally.

5. The leather feed assisting apparatus according to claim 4, characterized in that: The receiving end of the second conveying belt covers the second rotating roller, which is arranged obliquely, and the projection of the second rotating roller on the horizontal plane is parallel to that of the first rotating roller.

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