Pressing and rolling mechanism for after-finishing of denim fabric

Abstract

The utility model relates to a pressing and rolling mechanism for after-finishing of denim fabric. The device comprises a mounting base, a first pressing roller and a second pressing roller, the mounting base comprises a fixed base, a first assembling base and a second assembling base, the left end and the right end of the first assembling base are each provided with a first boss, and the left end and the right end of the second assembling base are each provided with a second boss right opposite to the first boss; a pull rod is arranged between the corresponding first boss and the second boss in a penetrating mode, a limiting cap is arranged at one end of the pull rod, a limiting nut is connected to the other end of the pull rod in a screwed mode, a plurality of compressed springs are connected between the second assembling base and the first assembling base, a pointer is arranged on the limiting cap, and scale marks are arranged on the first assembling base. Before the rolling pressure is adjusted every time, all the limiting nuts need to be screwed tightly, all the pointers are reset to zero, then the rolling pressure is controlled by adjusting the rotation angles of all the limiting nuts, it is guaranteed that the rotation angles of all the limiting nuts are the same, the parallelism of the two rolling rollers is guaranteed, and the whole adjusting process is relatively simple.

Description

Technical Field

[0001] The utility model relates to fabric production equipment, in particular to a pressing mechanism for post-finishing of denim fabrics. Background Art

[0002] The padding process of fabrics is an important textile processing technology, which is mainly used in the pre-treatment process of pure cotton or polyester-cotton knitted fabrics. In the padding process, the knitted fabric will first undergo an oxidation pre-treatment of padding with hydrogen peroxide and steaming, and then be washed. Next, the knitted fabric will be treated with bio-enzyme padding and steaming again, and then the enzyme will be inactivated and washed, thus completing the entire pre-treatment process. This process can effectively solve the problem of poor effect of traditional bio-enzyme pre-treatment of cotton fabrics.

[0003] In addition, the padding process is also widely used in the secondary processing of denim fabrics. For example, through the coating padding technology, denim fabrics can be specially treated to give them a special color style and texture. This technology combines the advantages of coating dyeing and dyeing. It is not only suitable for almost all fibers and colors, but also can achieve environmental protection, energy saving, high efficiency, high quality and low cost fabric processing.

[0004] The fabric padding machine used in the padding process of denim fabric is a mature fabric production equipment. The fabric will be immersed and rolled once or multiple times on the padding machine. The mechanism used to roll the fabric is a rolling mechanism. The rolling mechanism is generally composed of two parallel and laminated rolling rollers. The rolling rollers are generally covered with elastic rubber sleeves. The soaked fabric passes between the two rolling rollers. The extrusion force applied to the fabric by the two rolling rollers can achieve the effect of rolling. When the parallelism of the two rolling rollers is not good, the fabric extrusion will be uneven, affecting the quality of the padding process. Because the pressure requirements for rolling are different when producing different denim fabrics, the rolling mechanism also needs to have a fine-tuning function. Therefore, how to ensure the parallelism of the two rolling rollers while realizing the pressure fine-tuning of the rolling mechanism has become an urgent problem to be solved in the denim fabric production industry. Summary of the invention

[0005] The utility model provides a pressing mechanism for post-finishing of denim fabrics, which solves the problem in the prior art that it is difficult to ensure the parallelism of two pressing rollers during the process of adjusting the pressure of the two pressing rollers.

[0006] The above technical problems of the utility model are mainly solved by the following technical solutions: A pressing mechanism for post-finishing of denim fabrics, comprising a mounting seat and a first pressing roller and a second pressing roller mounted thereon in a horizontal rotation manner, wherein the first pressing roller and the second pressing roller are both sleeved with elastic rubber sleeves, characterized in that: the mounting seat comprises a fixed base, two first assembly seats rotatably matched with the two ends of the first pressing roller, and two second assembly seats rotatably matched with the two ends of the second pressing roller, a first boss protruding from the left and right ends of the first assembly seat facing the second assembly seat are respectively provided, and a second boss facing the first boss is respectively provided at the left and right ends of the second assembly seat; a pull rod is provided between the corresponding first boss and the second boss, one end of the pull rod is provided with a limit cap for abutting and limiting with the second assembly seat, and the other end is screwed with a limit nut for abutting and limiting with the first assembly seat, a plurality of compression springs are connected between the second assembly seat and the first assembly seat, a position-adjustable pointer is provided on the limit cap, and a scale line is provided on the first assembly seat.

[0007] The utility model needs to tighten the eight limit nuts first each time the rolling pressure needs to be readjusted. Note that the tightening needs to be done in steps, and the continuous rotation angle each time does not exceed 180 degrees. After all the limit nuts are rotated to the same angle, the next continuous rotation begins. This method is followed until all the limit nuts are tightened. It is best to use a torque wrench when tightening to ensure that the tightening forces of the eight limit nuts are close. When the eight limit nuts are tightened, the four first bosses and the four second bosses are butted against each other in pairs, and the compression springs are in a compressed state. At this time, the two The spacing between the first assembly seat and the two second assembly seats is the same, the two rolling rollers are in a parallel state, and the elastic rubber sleeves on the two rolling rollers in this state are in a maximum extrusion pressure state; then adjust the positions of the four pointers so that they all point to the zero point of the corresponding scale line, and then rotate the eight limit nuts in reverse steps as needed, so that the final torsion amplitude of the eight limit nuts is consistent, and the elastic force of the compression spring can push the two rolling rollers to move in reverse. Since the specifications of the threads on each pull rod are consistent, as long as the rotation angle is controlled consistently, the lifting amplitude can be guaranteed to be consistent.

[0008] Furthermore, a stop block is provided between the limit nut and the first assembly seat, and the pull rod passes through the stop block. The material of the stop block is generally a relatively soft metal, such as aluminum or copper, so that when the stop block is pressed on the first assembly seat by the limit nut, a larger friction coefficient is generated, achieving an anti-slip effect.

[0009] Furthermore, the lower surface of the stop block is a plane and is completely fitted with the first assembly seat, the upper surface of the stop block is an arc-shaped concave surface, and the lower surface contour of the limit nut is adapted to the upper surface of the stop block. The upper surface of the stop block is an arc-shaped concave surface, which can effectively increase the contact area between the stop block and the limit nut, not only increasing the friction force, but also reducing the contact pressure and reducing the deformation of the stop block.

[0010] Therefore, compared with the prior art, the utility model has the following characteristics: 1. Before adjusting the rolling pressure each time, all the limit nuts must be tightened and all the pointers must be reset to zero, and then the rolling pressure is controlled by adjusting the rotation angles of all the limit nuts to ensure that the rotation angles of each limit nut are the same to ensure the parallelism of the two rolling rollers. The entire adjustment process is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0012] Attached Figure 2 Yes Figure 1 Enlarged view of part A. DETAILED DESCRIPTION

[0013] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0014] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0015] Example 1: See Figure 1A pressing mechanism for finishing denim fabrics, comprising a mounting seat 10 and a first pressing roller 20 and a second pressing roller 30 mounted thereon in a horizontal rotation manner, wherein the first pressing roller and the second pressing roller are both sleeved with an elastic rubber sleeve 40, the mounting seat comprises a fixed base 100, two first assembly seats 200 rotatably matched with both ends of the first pressing roller, and two second assembly seats 300 rotatably matched with both ends of the second pressing roller, the first assembly seat is located on the upper side of the second assembly seat, the second assembly seat is fixed on the fixed base, and the first assembly seat faces the second assembly seat A first boss 210 is respectively provided at the left and right ends of one side, and a second boss 310 facing the first boss is respectively provided at the left and right ends of the second assembly seat; a pull rod 400 is passed through the corresponding first boss and second boss, one end of the pull rod is provided with a limit cap 410 for abutting and limiting the position with the second assembly seat, and the other end is screwed with a limit nut 420 for abutting and limiting the position with the first assembly seat, a number of compression springs 430 are connected between the second assembly seat and the first assembly seat, the limit cap is provided with a position-adjustable pointer 440, and the first assembly seat is provided with scale lines.

[0016] See Figure 2 A stop block 450 is also provided between the limit nut and the first assembly seat, the pull rod passes through the stop block, and the material of the stop block is copper; the lower surface of the stop block is a plane and is completely fitted with the first assembly seat, the upper surface of the stop block is an arc-shaped concave surface, and the lower surface contour of the limit nut is adapted to the upper surface of the stop block.

[0017] It should be noted that the end faces of the first and second bosses, the portion of the second assembly seat that contacts the limit cap, and the portion of the first assembly seat that contacts the stop block all need to be machined to ensure parallelism and height.

[0018] In this embodiment, each time the rolling pressure needs to be readjusted, the eight limit nuts need to be tightened first. Note that the tightening needs to be done in steps, and the continuous rotation angle each time does not exceed 180°. After all the limit nuts are rotated to the same angle, the next continuous rotation is started, and this method is followed until all the limit nuts are tightened. It is best to use a torque wrench when tightening to ensure that the tightening force of the eight limit nuts is close; when the eight limit nuts are tightened, the four first bosses and the four second bosses are butted against each other, and the compression spring is in a compressed state. At this time, the spacing between the two first assembly seats and the two second assembly seats is the same, the two rolling rollers are in a parallel state, and the elastic rubber sleeves on the two rolling rollers in this state are in a maximum extrusion pressure state; then adjust the positions of the four pointers so that they all point to the zero point of the corresponding scale line, and then rotate the eight limit nuts in reverse steps as needed, so that the final torsion amplitude of the eight limit nuts is consistent, and the elastic force of the compression spring can push the two rolling rollers to move in the opposite direction. Since the specifications of the threads on each pull rod are consistent, as long as the rotation angle is controlled to be consistent, the lifting amplitude can be guaranteed to be consistent.

[0019] See Figure 1 A first step hole 220 coaxial with the pull rod is provided on the first boss, a second step hole 320 coaxial with the pull rod is provided on the second boss, and a compression spring is provided between the two step holes.

[0020] See Figure 1 The first assembly seat includes a first upper cover 201, a first lower cover 202 and a first positioning cavity formed therebetween, in which a first bearing 203 fixedly sleeved with the first pressing roller is arranged; the second assembly seat includes a second upper cover 301, a second lower cover 302 and a second positioning cavity formed therebetween, in which a second bearing 303 fixedly sleeved with the second pressing roller is arranged.

[0021] It is obvious to those skilled in the art that the utility model can be changed in many ways, and such changes are not considered to be out of the scope of the utility model. All such modifications obvious to those skilled in the art will be included in the scope of the claims.

Claims

1. A pressing mechanism for finishing denim fabrics, comprising a mounting seat and a first pressing roller and a second pressing roller mounted thereon for horizontal rotation, wherein the first pressing roller and the second pressing roller are both provided with elastic rubber sleeves, and characterized in that: The mounting seat includes a fixed base, two first assembly seats rotatably matched with the two ends of the first pressing roller, and two second assembly seats rotatably matched with the two ends of the second pressing roller. The first assembly seat is provided with a protruding first boss on the left and right ends of the side facing the second assembly seat, and the second assembly seat is provided with a second boss facing the first boss on the left and right ends; a pull rod is passed through the corresponding first boss and second boss, one end of the pull rod is provided with a limit cap that abuts and limits the second assembly seat, and the other end is screwed with a limit nut that abuts and limits the first assembly seat; a number of compression springs are connected between the second assembly seat and the first assembly seat, the limit cap is provided with a pointer with an adjustable position, and the first assembly seat is provided with a scale line.

2. The pressing mechanism for denim fabric finishing according to claim 1, characterized in that: A stop block is provided between the limit nut and the first assembly seat, and the pull rod passes through the stop block.

3. The pressing mechanism for denim fabric finishing according to claim 2, characterized in that: The lower surface of the stop block is a plane and is completely fitted with the first assembly seat. The upper surface of the stop block is an arc-shaped concave surface. The lower surface contour of the limiting nut is adapted to the upper surface of the stop block.

4. The pressing mechanism for denim fabric finishing according to claim 1, characterized in that: The first boss is provided with a first stepped hole coaxial with the pull rod, the second boss is provided with a second stepped hole coaxial with the pull rod, and the compression spring is arranged between the two stepped holes.

5. The pressing mechanism for denim fabric finishing according to claim 1, characterized in that: The first assembly seat includes a first upper cover, a first lower cover and a first positioning cavity formed therebetween, and a first bearing fixedly sleeved to the first pressing roller is arranged in the first positioning cavity; the second assembly seat includes a second upper cover, a second lower cover and a second positioning cavity formed therebetween, and a second bearing fixedly sleeved to the second pressing roller is arranged in the second positioning cavity.

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