Calender for producing and processing leather products

Abstract

The utility model relates to a calender for producing and processing leather products, which comprises a fixing frame, two groups of calendering components are arranged on the fixing frame, each group of calendering component comprises a long transverse shaft, two short transverse shafts and two pinions, a calendering roller is fixedly sleeved on the long transverse shaft, and a calendering roller is fixedly sleeved on the short transverse shaft. The left end and the right end of the long transverse shaft are slidably arranged in two arc grooves correspondingly formed in the two ends of the fixing frame in a penetrating mode respectively, the left end and the right end of the long transverse shaft are fixedly sleeved with two large gears respectively, and the two small gears are rotationally installed at the circle centers of the corresponding arc grooves through short transverse shafts respectively. The two pinions of each group of calendering components are respectively meshed with the two large gears of the same group, and the two short transverse shafts of at least one group of calendering components are driven by two synchronous motors to rotate synchronously; the two small gears, located at the same end of the fixing frame, of the two calendering assemblies are meshed with each other, the two large gears, located at the same end of the fixing frame, of the two calendering assemblies are pushed by a pushing assembly to be close to or away from each other, and the pushing assembly is arranged on the outer side of the upper end of the fixing frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of leather product processing, and particularly relates to a calender for the production and processing of leather products. Background Technique

[0002] Leather products are processed from animal skins and have various different types and uses. During the processing of leather products, a calender is also required to calender the leather. After being processed by the calender, the fibers inside the leather will be straightened and opened, and at the same time, some impurities will be removed, making the leather softer, more flexible to bend, and also having a good effect on improving the surface texture of the leather.

[0003] In the Chinese utility model patent with the publication number of CN219603601U, a leather calendering device for luggage production is disclosed, which is provided with a limiting plate, a sliding plate, a concave hole, a shock-absorbing rod, and a spring. The inner walls of two limiting plates slide on the outer wall of the rotating rod respectively, so that the sliding plate fixed to the outer wall of the limiting plate slides on the outer wall of the cross bar through the concave hole. There are a placing plate, a slider, a sliding groove, and a hydraulic cylinder. The hydraulic cylinder is controlled to pull the slider to slide on the inner wall of the sliding groove opened on the inner wall of the calender until the leather being wound and the rotating rod are in a slack state. However, at the beginning of leather calendering, the thickness of the leather is relatively thick, but after multiple calendings, the thickness of the leather will be reduced to varying degrees. The distance between two of the rotating rods of the above calendering device is constant and non-adjustable. Therefore, when the leather thickness is reduced, it is difficult to effectively and highly calender the leather, the calendering effect will become worse, and the device is difficult to meet the actual use requirements.

[0004] Therefore, it is urgent to improve the existing leather calendering device for luggage production and provide a calender for the production and processing of leather products with adjustable calendering force. Content of the Utility Model

[0005] The purpose of the utility model is to provide a calender for the production and processing of leather products with reasonable design, simple structure, and convenient adjustment of calendering force to solve the problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A calender for the production and processing of leather products, which includes a fixed frame in an inverted U shape. There are two sets of calendering components distributed vertically on the fixed frame. Each set of calendering components includes a long horizontal shaft, two short horizontal shafts, and two small gears. A calendering roller is fixedly sleeved on the long horizontal shaft. The left and right ends of the long horizontal shaft are respectively slidably inserted into two arc grooves correspondingly opened at both ends of the fixed frame. The left and right ends of the long horizontal shaft are respectively fixedly sleeved with two large gears located outside the fixed frame. The two small gears are respectively rotatably installed at the centers of the corresponding arc grooves at both ends of the fixed frame through the short horizontal shafts; the two small gears of each set of calendering components are respectively meshed and connected with the two large gears of the same set. The two short horizontal shafts of at least one set of calendering components are driven by two synchronous motors to rotate synchronously; the two small gears of the two sets of calendering components located at the same end of the fixed frame are meshed with each other, and the two large gears of the two sets of calendering components located at the same end of the fixed frame are pushed by a pushing component to move closer to or away from each other for adjusting the distance. The pushing component is arranged outside the upper end of the fixed frame.

[0008] Preferably, a connecting rod is rotatably connected between the long horizontal shaft and the short horizontal shaft of each set of calendering components located at the same end of the fixed frame.

[0009] Preferably, the pushing component includes a movable frame and an electric telescopic rod. The movable frame is arranged in an inverted U shape outside the upper end of the fixed frame. One end of the electric telescopic rod is fixedly installed on the top of the fixed frame, and the other end of the electric telescopic rod is fixedly connected to the upper part of the movable frame for driving the movable frame to move back and forth. Fixed columns are arranged at both the left and right ends of the bottom of the movable frame and are slidably connected to the two connecting rods located at the same end of the fixed frame.

[0010] Preferably, a guide groove is opened inside each connecting rod and is slidably connected to the corresponding fixed column.

[0011] Preferably, the end of the fixed column away from the movable frame is guided and slidably located inside the guide groove.

[0012] Preferably, two symmetrically arranged support blocks are fixed at the top end of the fixed frame, and one end of each of the two electric telescopic rods is respectively fixedly installed on the upper ends of the two support blocks.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the solution of the present utility model, the movable frame is controlled to move back and forth by the electric telescopic rod. At this time, the fixed column fixed on the inner wall of the movable frame can be used to squeeze the connecting rod with a guide groove inside, so that the upper and lower two connecting rods can drive the two calendering components to rotate and adjust respectively with the upper and lower two short horizontal axes as the centers and along the trajectory of the arc groove. Moreover, the rotation directions of the two calendering components are opposite, so that the distance between the upper and lower two calendering rollers can be controlled. The smaller the distance, the greater the calendering force. By adjusting the distance between the two calendering rollers, the quick control of the calendering force can be realized, which is convenient for calendering the leather to different degrees, and the calendering effect is better, and the practicability of the device is stronger.

[0015] In the present utility model, since the connecting rod drives the calendering component to rotate and adjust with the short horizontal axis as the center, the large gear can always be meshed with the corresponding small gear. By starting the synchronous motor, the upper and lower two small gears on the same side can be controlled to rotate synchronously and reversely, so that the two large gears can be controlled to drive the two long horizontal axes and the calendering rollers to rotate synchronously and reversely respectively, which is convenient for stable calendering and transmission of the leather, and the processing is fast and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. The following is the description of the drawings:

[0017] Figure 1 It is a front three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 It is a front overall structure schematic diagram of the pushing component of the present utility model;

[0019] Figure 3 It is a left view structure schematic diagram of the short horizontal axis and the connecting rod of the present utility model;

[0020] Figure 4 It is a rear three-dimensional structure schematic diagram of the present utility model;

[0021] Figure 5 It is a front working state structure schematic diagram of the calendering component of the present utility model.

[0022] In the figure:

[0023] 1, fixed frame; 2, pushing component; 21, movable frame; 22, fixed column; 23, support block; 24, electric telescopic rod; 3, arc groove; 4, calendering component; 41, long horizontal axis; 42, calendering roller; 43, large gear; 5, short horizontal axis; 6, small gear; 7, synchronous motor; 8, connecting rod; 9, guide groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The embodiments described below are only a part of the embodiments of the present utility model and do not represent all embodiments consistent with the present utility model. Now, in conjunction with the accompanying drawings, the exemplary embodiments are described as follows:

[0025] As Figures 1-5 shown in one of them, the calender for the production and processing of leather products of the present utility model includes a fixed frame 1 in an inverted U shape. A pushing assembly 2 is provided on the outer side of the upper end of the fixed frame 1. Two arc grooves 3 are symmetrically opened up and down inside the left and right ends of the fixed frame 1. Two groups of calendering assemblies 4 are symmetrically installed up and down inside the fixed frame 1. Each group of calendering assemblies 4 includes a long horizontal shaft 41, two short horizontal shafts 5, and two small gears 6. A calendering roller 42 is fixedly sleeved on the long horizontal shaft 41. The left and right ends of the long horizontal shaft 41 are respectively slidably inserted into two arc grooves 3 correspondingly opened at both ends of the fixed frame 1. Two large gears 43 located outside the fixed frame 1 are respectively fixedly sleeved on the left and right ends of the long horizontal shaft 41. The two small gears 6 are respectively rotatably installed at the centers of the corresponding arc grooves 3 at the left and right ends of the fixed frame 1 through the short horizontal shafts 5. The two small gears 6 of each group of calendering assemblies 4 are respectively meshed and connected with the two large gears 43 of the same group. The two short horizontal shafts 5 of at least one group of calendering assemblies 4 are driven to rotate synchronously by two synchronous motors 7. The two small gears 6 located at the same end of the two groups of calendering assemblies 4 are meshed with each other. The two large gears 43 located at the same end of the two groups of calendering assemblies 4 are pushed by a pushing assembly 2 to move closer to or away from each other for adjusting the distance. The pushing assembly 2 is provided on the outer side of the upper end of the fixed frame 1.

[0026] On the basis of the above structure, preferably, four short horizontal shafts 5 are rotatably installed at the left and right ends of the fixed frame 1 through bearings. The four short horizontal shafts 5 are distributed in pairs at the rear sides of the left and right ends of the fixed frame 1. The two short horizontal shafts 5 at each end are symmetrically arranged up and down. Two synchronous motors 7 are fixedly installed on the inner walls at the rear sides of the left and right ends of the fixed frame 1. The output ends of the two synchronous motors 7 are fixedly connected to the two short horizontal shafts 5 of one group of calendering assemblies 4.

[0027] As Figure 2 shown, as a preferred embodiment, on the basis of the above structure, preferably, the pushing assembly 2 includes a movable frame 21 and an electric telescopic rod 24. The movable frame 21 is in an inverted U shape. The movable frame 21 is movably arranged on the outer side of the upper end of the fixed frame 1. One end of the electric telescopic rod 24 is fixedly installed on the top of the fixed frame 1. The other end of the electric telescopic rod 24 is fixedly connected to the upper part of the movable frame 21 for driving the movable frame 21 to move back and forth. Two fixed columns 22 are respectively provided at the left and right ends of the bottom of the movable frame 21 corresponding to two connecting rods 8 at the same end. The two fixed columns 22 at the same end of the movable frame 21 are respectively slidably connected to the two connecting rods 8 at the same end of the fixed frame 1.

[0028] In this embodiment, the electric telescopic rod 24 can control the forward and backward movement of the movable frame 21. At this time, the fixed column 22 on the inner wall of the movable frame 21 can squeeze the connecting rod 8 for rotational adjustment.

[0029] On the basis of the above structure, preferably, a connecting rod 8 is rotatably connected between the long horizontal axis 41 and the short horizontal axis 5 at the same end of the fixed frame 1 for each set of calendering components 4. A guiding groove 9 is formed inside each connecting rod 8. The end of the fixed column 22 away from the movable frame 21 is guided and slidably located inside the guiding groove 9. The two connecting rods 8 at the same end of the fixed frame 1 are linked by a pushing component 2, and the rotational directions of the two connecting rods 8 are always opposite.

[0030] In this embodiment, the two connecting rods 8 can drive the two sets of calendering components 4 to rotate in opposite directions respectively, which is convenient for controlling the distance between the two sets of calendering components 4 and meeting the requirements of the leather for the calendering force at different calendering stages.

[0031] On the basis of the above structure, further, two support blocks 23 are fixedly connected to the top of the fixed frame 1. The two support blocks 23 are symmetrically arranged about the fixed frame 1. One ends of the two electric telescopic rods 24 are respectively fixedly installed on the upper ends of the two support blocks 23, and the telescopic ends of the two electric telescopic rods 24 are fixedly connected to the movable frame 21.

[0032] As a preferred implementation manner, on the basis of the above structure, preferably, the centers of the upper and lower circular arc grooves 3 at the same end of the fixed frame 1 coincide with the centers of the upper and lower short horizontal axes 5 at the same end respectively.

[0033] In this embodiment, the two small gears 6 can drive the two large gears 43 to rotate in opposite directions respectively, so as to control the synchronous reverse rotation of the two long horizontal axes 41 and the calendering rollers 42, which is convenient for stable calendering and transmission of the leather, and the processing is fast and convenient.

[0034] As a preferred implementation manner, on the basis of the above structure, preferably, the two large gears 43 at the same end of the fixed frame 1 are respectively meshed with the two small gears 6, and the two large gears 43 never contact each other. The end of the connecting rod 8 away from the short horizontal axis 5 is rotatably sleeved on the outer side of the end of the long horizontal axis 41 through a bearing.

[0035] In this embodiment, the connecting rod 8 is connected to the long horizontal axis 41 through a bearing, which is convenient for the connecting rod 8 to drive the long horizontal axis 41 to rotate and adjust around the short horizontal axis 5, and is also convenient for the long horizontal axis 41 to drive the calendering roller 42 to rotate for calendering and transmission of the leather.

[0036] The working principle of the present utility model is as follows:

[0037] In use, first insert one end of the leather to be calendered between the upper and lower calender rollers 42. Then, start the electric telescopic rod 24 to control the movable frame 21 to move forward. At this time, the fixed column 22 on the inner wall of the movable frame 21 can squeeze the connecting rod 8 in the guiding groove 9 opened inside, so that the upper and lower two connecting rods 8 drive the two groups of calender components 4 to rotate and adjust respectively with the upper and lower two short horizontal axes 5 as the centers and along the trajectory of the arc-shaped arc groove 3. And the rotation directions of the two groups of calender components 4 are opposite, so as to control the distance between the upper and lower calender rollers 42, and the leather can be clamped and calendered. Moreover, the farther the movable frame 21 moves forward, the smaller the distance between the two calender rollers 42, and the greater the calendering force. During the calendering process, by adjusting the distance between the two calender rollers 42, the quick control of the calendering force can be realized, which is convenient for calendering the leather to different degrees, can meet the requirements of the leather for the calendering force at different calendering stages, and has a better calendering effect, which plays a significant role in enhancing the practicality of the device;

[0038] Since the connecting rod 8 drives the calender component 4 to rotate and adjust with the short horizontal axis 5 as the center, the large gear 43 can always be meshed with the corresponding small gear 6. After the leather is pressed tightly, start the synchronous motor 7 to control the two meshed small gears 6 to rotate synchronously and in opposite directions, so as to control the two large gears 43 to drive the two long horizontal axes 41 and the calender rollers 42 to rotate synchronously and in opposite directions respectively, which is convenient for stable calendering and transmission of the leather, and the processing is fast and convenient.

[0039] The above is only the preferred specific embodiment of the present invention, and it is not used to limit the protection scope of the present invention; all equivalent changes, modifications, substitutions and variations made by those skilled in the art in the technical field of the present invention based on the concept of the present invention through logical analysis, reasoning or limited experiments shall be within the protection scope determined by the claims.

Claims

1. A calender for leather product production and processing, comprising an inverted U-shaped fixed frame (1), wherein the fixed frame (1) is provided with two groups of calendering components (4) distributed up and down, characterized in that: Each group of calendering components (4) comprises a long transverse shaft (41), two short transverse shafts (5) and two small gears (6); a calendering roller (42) is fixedly sleeved on the long transverse shaft (41); the left and right ends of the long transverse shaft (41) are respectively slidably inserted into two arc grooves (3) correspondingly provided at the two ends of the fixed frame (1); the left and right ends of the long transverse shaft (41) are respectively fixedly sleeved with two large gears (43) located outside the fixed frame (1); the two small gears (6) are respectively rotatably mounted at the centers of the arc grooves (3) corresponding to the left and right ends of the fixed frame (1) through the short transverse shaft (5); The two small gears (6) of each group of calendering assemblies (4) are respectively meshed with the two large gears (43) of the same group, and the two short transverse shafts (5) of at least one group of calendering assemblies (4) are driven by two synchronous motors (7) to rotate synchronously; the two small gears (6) of the two groups of calendering assemblies (4) located at the same end of the fixed frame (1) are meshed with each other, and the two large gears (43) of the two groups of calendering assemblies (4) located at the same end of the fixed frame (1) are pushed by a pushing assembly (2) to move closer to or away from each other for adjusting the spacing, and the pushing assembly (2) is arranged on the outer side of the upper end of the fixed frame (1).

2. A calender for leather product production and processing according to claim 1, characterized in that: A connecting rod (8) is provided between the long transverse axis (41) and the short transverse axis (5) of each group of calendering components (4) located at the same end of the fixed frame (1) for rotational connection.

3. A calender for leather product production and processing according to claim 2, characterized in that: The pushing assembly (2) comprises a movable frame (21) and an electric telescopic rod (24); the movable frame (21) is arranged outside the upper end of the fixed frame (1) in an inverted U shape; one end of the electric telescopic rod (24) is fixedly mounted on the top of the fixed frame (1); the other end of the electric telescopic rod (24) is fixedly connected to the upper part of the movable frame (21) for driving the movable frame (21) to move forward and backward; and fixed columns (22) are provided at both left and right ends of the bottom of the movable frame (21) and are slidably connected to two connecting rods (8) located at the same end of the fixed frame (1).

4. A calender for leather product production and processing according to claim 3, characterized in that: Each connecting rod (8) is provided with a guide groove (9) inside thereof and is slidably connected to a corresponding fixing column (22).

5. The calender for leather product production and processing according to claim 3, characterized in that: One end of the fixed column (22) away from the movable frame (21) is guided and slidably located inside the guide groove (9).

6. A calender for leather product production and processing according to claim 3, characterized in that: Two support blocks (23) arranged symmetrically on both sides are fixed to the top of the fixing frame (1), and one end of two electric telescopic rods (24) is respectively fixedly mounted on the upper ends of the two support blocks (23).

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