Auxiliary roll changing device

Abstract

The utility model relates to the technical field of leather production, in particular to an auxiliary roll changing device which comprises two lifting clamping pieces and two pressing rollers, eccentric rotating holes are formed in the two ends of the two pressing rollers, rotating rods are fixed in the eccentric rotating holes, and the rotating rods are connected with the lifting clamping pieces. The pressing roller is rotationally connected between the two lifting clamping pieces through the rotating rod. By arranging the two eccentric pressing rollers, the pressing and rolling distance is adjusted on the premise that the pressing rollers are not detached, the use adaptability of the device is improved, the operation difficulty is reduced, and the leather rolling effect is improved; and by arranging the pressing strip, the rolling stability is further enhanced, the finished product roll is prevented from falling back and loosening, and the hard-surface pressing roller can be prevented from causing indentations on the surface of the leather roll.

Description

Technical Field

[0001] The utility model relates to the technical field of leather production, in particular to an auxiliary roll changing device. Background Art

[0002] When rolling up or changing the leather material, the leather needs to be pulled, which may affect the performance of the leather. If the leather slips out of your hand during pulling, it may cause the leather to curl back or wrinkle due to the leather being too loose. Figure 1 As shown, Figure 1 This is the roll-changing and pressing device with patent application number CN201721665753.X. In the above technology, the distance between the two pressing rollers is relatively fixed. Therefore, when the diameter of the rolled leather roll is large, the pressing device of different sizes needs to be replaced as a whole to adapt to it. This not only increases the complexity of the operation, but also greatly affects the winding efficiency.

[0003] Therefore, it is necessary to provide an auxiliary roll changing device with an adjustable distance between the two pressure rollers. Utility Model Content

[0004] The utility model provides an auxiliary roll changing device to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides an auxiliary roll changing device, including: two lifting clamps and two pressure rollers, an eccentric rotating hole is opened on both ends of the two pressure rollers, a rotating rod is fixed in the eccentric rotating hole, and the pressure roller is rotatably connected between the two lifting clamps through the rotating rod.

[0006] Furthermore, limiting grooves are provided at both ends of the pressing roller, and the limiting grooves are concentrically arranged with the eccentric rotating hole.

[0007] Furthermore, the inner wall of the limiting groove is provided with a plurality of locking holes, and the distance between two adjacent locking holes is the same.

[0008] Furthermore, a stopper is provided on the lifting clamp, and one end of the stopper passes through the lifting clamp and extends into the locking hole.

[0009] Furthermore, the inner wall of the locking hole is provided with a thread, and the stop member includes a screw matching the thread.

[0010] Furthermore, a plurality of pressure strips are provided on the surface of the pressure roller, and the distance between two adjacent pressure strips is equal.

[0011] Furthermore, the layer is made of elastic material.

[0012] Furthermore, the vertical cross-section of the layering strip is 1 / 2 of a circle.

[0013] Furthermore, the vertical cross-section of the pressure strip is an isosceles trapezoid, and the width of the pressure strip gradually increases in a direction away from the center of the pressure roller.

[0014] Furthermore, weakening grooves are provided on both side surfaces of the pressure strip, and the vertical cross-section of the weakening grooves is arc-shaped.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By setting two eccentric pressing rollers, the pressing and rolling distance can be adjusted without removing the pressing rollers, which improves the adaptability of the device, reduces the difficulty of operation, and improves the leather rolling effect;

[0017] By setting the pressure strip, the stability of the rolling is further enhanced, the finished product is prevented from being loosened when rolled back, and the hard-surface pressure roller is prevented from causing indentations on the surface of the leather roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 It is a structural diagram of a roll changing and pressing device in the prior art;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the auxiliary roll-changing device of the utility model in the first state;

[0021] Figure 3 This is a schematic diagram of the third-dimensional structure of the auxiliary roll-changing device of the present invention in the second state;

[0022] Figure 4 A three-dimensional cross-sectional view of a preferred embodiment of the pressure roller of the present utility model;

[0023] Figure 5 This is a schematic diagram of the outer contour structure of the vertical cross-section of the layering strip of the present invention.

[0024] Among them, 1. lifting clip; 2. pressure roller; 21. eccentric rotating hole; 22. limiting groove; 23. locking hole; 3. rotating rod; 4. stop member; 5. pressure strip; 51. weakening groove. DETAILED DESCRIPTION

[0025] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0026] See also Figure 2 Combined with Figure 3 , Figure 2 This is a schematic diagram of the three-dimensional structure of the auxiliary roll-changing device of the utility model in the first state; Figure 3This is a schematic diagram of the second state of the three-dimensional structure of an auxiliary roll changing device of the utility model. Figures 2 to 3 As shown, at least one embodiment provides an auxiliary roll-changing device, including: two lifting clamps 1 and two pressure rollers 2. It should be further explained that the first state is the position state where the two pressure rollers 2 are closest to each other, and the second state is the position state where the two pressure rollers 2 are farthest apart. The distance between the two pressure rollers 2 between the first state and the second state is the range in which the auxiliary roll-changing device in this embodiment can press and hold the leather roll. When the leather roll is changed, the two pressure rollers 2 are required to press and hold the leather roll on both sides of the end of the roll respectively. The distance should not be too long, otherwise the leather end will easily curl up, and it should not be too short, otherwise it will lead to unstable pressing. Therefore, the distance adjustment between the two eccentric pressing rollers 2 can well adapt to different leather rolls. Specifically, eccentric rotating holes 21 are opened on both ends of the two pressing rollers 2, and a rotating rod 3 is fixed in the eccentric rotating hole 21. The pressing roller 2 is connected between the two lifting clamps 1 by rotating through the rotating rod 3. The specific working principle is to rotate the two pressing rollers 2 according to the outer diameter of the leather roll after rolling, so that the distance between the two can be adapted to the outer diameter of the leather roll. After rolling, the driving device drives the two lifting clamps 1 to press down, so that the surface of the pressing roller 2 is pressed on both sides of the end to prevent the leather end from falling back and loosening.

[0027] See also Figure 4 , Figure 4 This is a three-dimensional cross-sectional view of the optimal embodiment of the pressure roller of the utility model. Figure 4 As shown, the pressure roller 2 has limit grooves 22 at both ends. When the pressure roller 2 rotates, one end of the stop member 4 contacts the limit groove 22, serving as a guide. Furthermore, when the angle needs to be fixed, the stop member 4 is inserted into the corresponding locking hole 23. Specifically, the limit groove 22 is concentric with the eccentric rotating hole 21. The inner wall of the limit groove 22 is provided with multiple locking holes 23. The locking holes 23 are threaded holes, and the stop member 4 is a screw with a nut. The distance between adjacent locking holes 23 is the same. The lifting clip 1 is provided with a stop member 4, one end of which passes through the lifting clip 1 and extends into the locking hole 23. The inner wall of the locking hole is provided with a thread, and the stop member 4 includes a screw matching the thread. The rotation and angle fixation of the pressure roller 2 are described in detail below. In the initial state, the screw and the locking hole 23 match. When the distance between the two pressure rollers 2 needs to be adjusted, the screw needs to be rotated to allow the screw to disengage from the locking hole 23 and not disengage from the limiting groove 22. At this time, one end of the screw should be against the inner wall of the limiting groove 22, and the pressure roller 2 is rotated. In this state, the stop member 4 plays a guiding role. After rotating to the appropriate angle, rotate the screw to allow the screw to extend into the corresponding locking hole 23 for relative fixation.

[0028] See also Figure 4 Combined with Figure 4 , Figure 5This is a schematic diagram of the vertical cross-section outer contour structure of the layering strip of the utility model. Figure 4 and Figure 5 As shown, in order to avoid excessive pressure between the pressing roller 2 and the surface of the rolled leather, a plurality of pressure strips 5 are provided on the surface of the pressing roller 2. The presence of the pressure strips 5 not only increases the friction, but also avoids the indentation caused by contact with the hard surface. Specifically, the distance between two adjacent pressure strips 5 is equal. And the pressure strips 5 are made of elastic material. The vertical section of the pressure strip 5 is 1 / 2 of a circle (not shown in the figure); or the vertical section of the pressure strip 5 is an isosceles trapezoid, and the width of the pressure strip 5 gradually increases in the direction away from the center of the pressure roller 2. Weakening grooves 51 are provided on both sides of the pressure strip 5. The vertical section of the weakening groove 51 is arc-shaped. The weakening groove 51 can make the pressure strip 5 and the surface of the leather roll concave inward when they are in contact with each other, thereby further avoiding the offset sliding between the pressure strip 5 and the surface of the leather roll, thereby further enhancing the pressure holding stability.

[0029] To sum up, by setting two eccentric pressing rollers 2, the pressing distance can be adjusted without disassembling the pressing rollers 2, thereby improving the adaptability of the device, reducing the difficulty of operation, and improving the leather rolling effect; by setting the pressure strips 5, the pressing stability is further enhanced, and the finished product is prevented from being loosened when rolled back, and the hard-surface pressing rollers 2 can be prevented from causing indentations on the surface of the leather roll.

[0030] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. An auxiliary roll changing device, characterized in that: include: Two lifting clamps (1) and two pressure rollers (2), both ends of the two pressure rollers (2) are provided with eccentric rotating holes (21), a rotating rod (3) is fixed in the eccentric rotating hole (21), and the pressure roller (2) is rotatably connected between the two lifting clamps (1) through the rotating rod (3).

2. The auxiliary roll changing device according to claim 1, characterized in that: Limiting grooves (22) are provided at both ends of the pressing roller (2), and the limiting grooves (22) are concentrically arranged with the eccentric rotating hole (21).

3. The auxiliary roll changing device according to claim 2, characterized in that: The inner wall of the limiting groove (22) is provided with a plurality of locking holes (23), and the distance between two adjacent locking holes (23) is the same.

4. The auxiliary roll changing device according to claim 3, characterized in that: A stopper (4) is provided on the lifting clamp (1), and one end of the stopper (4) passes through the lifting clamp (1) and extends into the locking hole (23).

5. The auxiliary roll changing device according to claim 4, characterized in that: The inner wall of the locking hole is provided with a thread, and the stop member (4) comprises a screw rod matching the thread.

6. The auxiliary roll changing device according to claim 1, characterized in that: The surface of the pressing roller (2) is provided with a plurality of pressure strips (5), and the distance between two adjacent pressure strips (5) is equal.

7. The auxiliary roll changing device according to claim 6, characterized in that: The pressure strip (5) is made of elastic material.

8. The auxiliary roll changing device according to claim 7, characterized in that: The vertical cross section of the layering strip (5) is 1 / 2 of a circle.

9. The auxiliary roll changing device according to claim 7, characterized in that: The vertical cross-section of the pressure strip (5) is an isosceles trapezoid, and the width of the pressure strip (5) gradually increases in a direction away from the center of the pressure roller (2).

10. The auxiliary roll changing device according to claim 9, characterized in that: Both sides of the pressure strip (5) are provided with weakening grooves (51), and the vertical cross-section of the weakening grooves (51) is arc-shaped.

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