Variable width twin-roll friction winding structure

Abstract

This utility model discloses a variable width double-roller friction take-up structure, relating to the field of warp knitting machine technology. It includes: a take-up bracket with a fabric winding unit for winding the mesh fabric at its inner bottom; a power unit located on the top of the side wall of the take-up bracket, providing additional rotational power to the fabric winding unit; a guide unit located at the bottom of the take-up bracket, guiding the mesh fabric to maintain tension as it enters the winding unit for take-up; and a blocking unit located on the take-up bracket, limiting the take-up width of the mesh fabric on the winding unit. This utility model reduces the tension on the pull roller and front-end mechanical parts by adding a power unit to provide additional power to the winding unit. The guide unit ensures the mesh fabric maintains a consistent angle before entering the winding unit, improving take-up quality. Simultaneously, the blocking unit limits the take-up interval width on the winding unit, adapting to take-up operations of various mesh fabric sizes.

Description

Technical Field

[0001] This utility model relates to the field of warp knitting machine technology, and in particular to a variable width double-roller friction take-up structure. Background Technology

[0002] Warp knitting machines are one of the important pieces of equipment for processing mesh fabrics. Through the weaving process of warp knitting machines, raw materials (yarn) are processed into mesh fabrics, forming specific fabric structures and characteristics.

[0003] In existing technology, after the warp knitting machine completes the looping action, it usually pulls the fabric onto the take-up roller for winding. The traditional double-roller friction take-up on the warp knitting machine is achieved by the transmission sprocket 1 installed on the last transmission sprocket 1 driving the transmission sprocket 2 on the idler roller to rotate, and then the transmission sprocket 3 at the other end of the idler roller drives the other idler roller to rotate. The two idler rollers rotate together in the same direction, generating friction with the take-up roller between them, so that the fabric wound on the take-up roller is slowly rolled into a roll.

[0004] However, the following problems were found in actual use:

[0005] (1) In actual use, the power of the idler roller comes from the last traction roller. As the mesh rolls up larger and larger, the force on the last traction roller also becomes larger and larger. This increases the force on the last traction roller and also increases the strength of the front mechanical part that drives the traction roller, which can easily cause damage to these two parts.

[0006] (2) Because the mesh fabric is pulled directly from the last traction roller to the winding roller, as the diameter of the wound mesh fabric gradually increases, the angle between the mesh fabric coming off the traction roller and the already rolled mesh fabric keeps changing. This results in uneven friction during the winding process, ultimately leading to uneven edges on the wound mesh fabric, with many exhibiting internal bulges or depressions. Consequently, the finally wound mesh fabric cannot be sold directly and must undergo a new winding and finishing process to meet the requirements.

[0007] (3) Due to the existing double-roller friction winding structure, when the mesh is smaller than the machine width, or when it needs to be divided into several small widths for winding, the mesh is rolled up in a worse way because there are no guard meshes on both sides. Utility Model Content

[0008] The purpose of this invention is to provide a variable width double-roller friction winding structure to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a variable width double-roller friction winding structure, comprising:

[0010] A winding support, wherein a winding unit for winding the mesh fabric is provided on the bottom inner side of the winding support;

[0011] A power unit is disposed on the top of the side wall of the take-up bracket, and the power unit is used to provide additional rotational power to the fabric winding unit;

[0012] A guiding unit is disposed at the bottom of the winding bracket, and the guiding unit is used to guide the mesh fabric to maintain tension and enter the winding unit for winding.

[0013] A blocking unit is disposed on a winding bracket, and the blocking unit is used to limit the winding width of the mesh on the winding unit.

[0014] Preferably, the fabric rolling unit includes:

[0015] A fabric winding roller, which is rotatably connected to the bottom inner side of the winding bracket;

[0016] Two idler rollers are fitted together on both sides of the outer wall of the fabric roll and are rotatably connected to the side wall of the take-up bracket.

[0017] A machine traction roller is disposed outside the winding bracket and is used to pull the mesh fabric onto the winding unit.

[0018] Preferably, the power unit includes:

[0019] A servo geared motor assembly, wherein a motor mount is externally fixedly connected to the servo geared motor assembly, and the motor mount is fixedly installed on the top of the side wall of the winding bracket;

[0020] A transmission component is disposed between the servo geared motor assembly and the idler roller, and the servo geared motor assembly drives the idler roller to rotate through the transmission component.

[0021] Preferably, the transmission component includes a first sprocket fixedly connected to the output end of the servo geared motor assembly and a second sprocket fixedly connected to one end of one of the idler rollers, and a chain is drivenly sleeved on the outer wall of the first sprocket and the second sprocket.

[0022] Preferably, the ends of the two idlers away from the second sprocket extend to the outside of the winding bracket and are fixedly connected to a third sprocket, and the outer walls of the two third sprockets are connected to a second chain.

[0023] Preferably, the guiding unit includes two fabric guide rollers, which are rotatably connected to the bottom of the winding bracket. One of the fabric guide rollers is located below the machine pull roller, and the other fabric guide roller is located below the winding roller. The mesh fabric conveyed by the outer wall of the machine pull roller passes around the outer walls of the two fabric guide rollers in sequence and is then wound onto the outer wall of the winding roller.

[0024] Preferably, the blocking unit includes:

[0025] Two movable baffle units are movably disposed inside the take-up bracket and can move horizontally along the axial direction of the fabric roll.

[0026] A blocking part is provided at the end of the movable baffle unit near the fabric roll roller, and the movable baffle unit is slidably sleeved with the outside of the fabric roll roller through the blocking part;

[0027] The movable unit support tube is located on the side of the idler roller away from the roll roller and is fixed to the side wall of the take-up bracket. The ends of the two movable baffle units away from the roll roller are detachably connected to the outside of the movable unit support tube.

[0028] Compared with the prior art, the technical effects of this utility model are as follows:

[0029] This invention provides additional power to the fabric winding unit by adding a power unit, which reduces the tension on the pull roller and the front mechanical parts, and ensures that the fabric is rolled in a taut state, which is beneficial for winding. Furthermore, the guide unit ensures that the fabric is kept at a consistent angle and under uniform force before entering the winding unit, minimizing the occurrence of depressions and bulges during the fabric winding process and improving the winding quality. At the same time, the blocking unit limits the width of the winding section on the winding unit to accommodate winding operations of various sizes of fabric, improving adaptability. Attached Figure Description

[0030] Figure 1 This is a front structural diagram of the present utility model.

[0031] Figure 2 This is a side view of the present invention.

[0032] Figure 3 This is a top view of the structure of this utility model.

[0033] Figure 4 This is a schematic diagram of the front structure of a dual-roller friction winding system in the prior art.

[0034] Figure 5 This is a schematic diagram of the side structure of a dual-roller friction winding system in the prior art.

[0035] In the diagram: 100, take-up bracket; 101, idler roller; 102, fabric roll roller; 103, fabric guide roller; 104, movable baffle unit; 105, motor base; 106, servo geared motor assembly; 107, first sprocket; 108, second sprocket; 109, movable unit support tube; 110, machine traction roller; 111, third sprocket. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] It should be noted that the existing dual-roller friction winding structure, such as... Figures 4-5 As shown, the machine includes a take-up bracket 100, two idler rollers 101 rotatably connected to the inner side of the take-up bracket 100, a fabric winding roller 102 fitted between the two idler rollers 101, and a machine pull roller 110 for pulling the fabric. A first sprocket 107 and a second sprocket 108 are respectively installed at the opposite ends of the machine pull roller 110 and the idler rollers 101 for power transmission. The ends between the two idler rollers 101 are synchronously and in the same direction via a third sprocket 111. Thus, when the machine pull roller 110 rotates, it drives the two idler rollers 101 to rotate. Friction is generated between the two idler rollers 101 and the fabric winding roller 102 in the middle between them, causing the fabric wound on the fabric winding roller 102 to slowly roll up. During this process, the power of the idler rollers 101 comes from the last machine pull roller 110 on the warp knitting machine. As the fabric rolls up larger, the force on the machine pull roller 110... As the diameter of the fabric increases, the stress on the machine pull roller 110 also increases the strength of the front-end mechanical parts that drive the machine pull roller 110, making these two parts prone to damage or malfunction. In addition, since the fabric is pulled directly from the last machine pull roller 110 on the warp knitting machine to the winding roller 102, the angle between the fabric coming off the machine pull roller 110 and the already rolled fabric is constantly changing as the diameter of the wound fabric gradually increases. This results in uneven friction of the wound fabric, ultimately leading to unevenness on both sides of the wound fabric, with many showing internal bulges or depressions. Moreover, the length of the winding roller 102 cannot be changed, so when the fabric is smaller than its width or needs to be divided into several smaller widths for winding, the lack of obstruction on both sides makes the rolled fabric uneven, reducing the winding effect.

[0038] This utility model provides, for example Figures 1-3The variable width double-roller friction winding structure shown includes a winding bracket 100, a winding unit, a power unit, a guide unit, and a blocking unit. The winding bracket 100 has a winding unit for winding the mesh fabric at its inner bottom. The power unit is located at the top of the side wall of the winding bracket 100 and provides additional rotational power to the winding unit. The guide unit is located at the bottom of the winding bracket 100 and guides the mesh fabric to maintain tension as it enters the winding unit for winding. The blocking unit is located on the winding bracket 100 and limits the winding width of the mesh fabric on the winding unit. In this embodiment, firstly, a power unit is added to the winding bracket 100... The fabric winding unit provides additional power, which not only reduces the tension of the front mechanical parts on the warp knitting machine, but also allows the fabric to form a certain tension during the winding process, so that the fabric can remain taut during winding, which is beneficial to the winding of the fabric. Secondly, by adding a guide unit to the winding bracket 100, the fabric can be guided before entering the winding unit, so that the feed angle of the fabric is consistent, thereby making the fabric more evenly stressed. During the winding of the fabric, the possibility of the fabric being concave or convex at both ends is minimized, thus improving the winding quality of the fabric. In addition, the blocking unit can limit the winding width on the winding unit to meet the winding operation of small-width fabrics in the winding unit, making it more adaptable.

[0039] The fabric winding unit includes a winding roller 102 and two support rollers 101. The winding roller 102 is rotatably connected to the bottom inner side of the winding bracket 100. The two support rollers 101 are fitted together on both sides of the outer wall of the winding roller 102 and rotatably connected to the side wall of the winding bracket 100. The machine pull roller 110 is located outside the winding bracket 100 and is used to pull the mesh fabric onto the winding unit. Similar to the prior art, the winding roller 102 uses the frictional resistance generated by the rotation of the two support rollers 101 to wind the mesh fabric.

[0040] The power unit includes a servo geared motor assembly 106, with a motor base 105 fixedly connected to the outside of the servo geared motor assembly 106. The motor base 105 is fixedly installed on the top of the side wall of the take-up bracket 100. A transmission component is disposed between the servo geared motor assembly 106 and the idler roller 101. The servo geared motor assembly 106 drives the idler roller 101 to rotate through the transmission component. The transmission component includes a first sprocket 107 fixedly connected to the output end of the servo geared motor assembly 106 and a second sprocket 108 fixedly connected to one end of one of the idler rollers 101. A chain is drivenly sleeved on the outer wall of the first sprocket 107 and the second sprocket 108. First, the ends of the two idler rollers 101 away from the second sprocket 108 extend to the outside of the winding bracket 100 and are fixedly connected to the third sprocket 111. The outer walls of the two third sprockets 111 are connected to the chain. Second, the two third sprockets 111 are set to realize synchronous and unidirectional transmission between the two idler rollers 101. The combination of the first sprocket 107 and the second sprocket 108 is to enable the power on the servo geared motor assembly 106 to be transmitted to the idler rollers 101, so as to provide an additional power source for the idler rollers 101. In the prior art, the servo geared motor assembly 106 can be composed of a combination of a servo motor and a reducer.

[0041] The guiding unit includes two feed rollers 103, which are rotatably connected to the bottom of the winding bracket 100. One feed roller 103 is located below the machine pull roller 110, and the other feed roller 103 is located below the winding roller 102. The mesh fabric conveyed by the outer wall of the machine pull roller 110 passes around the outer walls of the two feed rollers 103 in sequence and is then wound onto the outer wall of the winding roller 102. After the mesh fabric is pulled down from the machine pull roller 110, it passes around the outer wall of the feed roller 103 below, and then passes around the outer wall of the other feed roller 103 before being wound onto the outer wall of the winding roller 102. This ensures that the angle of the mesh fabric remains consistent before it enters the winding process, resulting in more uniform stress on the mesh fabric. This minimizes the possibility of the mesh fabric denting or bulging at both ends when it is wound up.

[0042] The blocking unit includes two movable baffle units 104, which are movably disposed inside the winding bracket 100 and can move horizontally along the axial direction of the winding roller 102. A blocking portion is disposed at the end of the movable baffle unit 104 near the winding roller 102, and the movable baffle unit 104 is slidably sleeved with the outside of the winding roller 102 through the blocking portion. A movable unit support tube 109 is located on the side of the support roller 101 away from the winding roller 102 and is fixed to the side wall of the winding bracket 100. The ends of the two movable baffle units 104 away from the winding roller 102 are detachably connected to the outside of the movable unit support tube 109. The end of 104 can be connected to the outer wall of the movable unit support tube 109 via a clamp or a sliding sleeve. This allows the movable baffle unit 104 to move along the outer wall of the movable unit support tube 109 while simultaneously locking the position between the movable baffle unit 104 and the movable unit support tube 109. This enables the end of the movable baffle unit 104 near the fabric roll 102 to be positioned on the outer wall of the fabric roll 102, forming a barrier zone between the ends of the two movable baffle units 104 on the outer wall of the fabric roll 102. This effectively blocks and limits the winding of the mesh fabric on the outer wall of the fabric roll 102, improving the adaptability for winding various wide-width mesh fabrics.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A variable width double-roller friction winding structure, characterized in that, include: A winding support (100) is provided with a winding unit for winding the mesh fabric at the bottom inner side; A power unit is disposed on the top of the side wall of the take-up bracket (100), and the power unit is used to provide additional rotational power for the fabric roll unit; A guiding unit is disposed at the bottom of the winding bracket (100), and the guiding unit is used to guide the mesh fabric to maintain tension and enter the winding unit for winding; A blocking unit is disposed on the winding bracket (100) and is used to limit the winding width of the mesh on the winding unit.

2. The variable width double-roller friction winding structure according to claim 1, characterized in that, The fabric rolling unit includes: A fabric rolling roller (102) is rotatably connected to the bottom inner side of the take-up bracket (100); Two idler rollers (101) are attached to both sides of the outer wall of the roll roller (102) and are rotatably connected to the side wall of the take-up bracket (100); A machine pull roller (110) is disposed outside the take-up bracket (100) and is used to pull the mesh fabric onto the take-up unit.

3. The variable width double-roller friction winding structure according to claim 2, characterized in that, The power unit includes: A servo geared motor assembly (106) is externally fixedly connected to a motor base (105), which is fixedly installed on the top of the side wall of the winding bracket (100). A transmission component is disposed between the servo geared motor assembly (106) and the idler roller (101). The servo geared motor assembly (106) drives the idler roller (101) to rotate through the transmission component.

4. The variable width double-roller friction winding structure according to claim 3, characterized in that, The transmission component includes a first sprocket (107) fixedly connected to the output end of the servo geared motor assembly (106) and a second sprocket (108) fixedly connected to one end of one of the idler rollers (101), and a chain is driven sleeved on the outer wall of the first sprocket (107) and the second sprocket (108).

5. The variable width double-roller friction winding structure according to claim 4, characterized in that, The ends of the two idler rollers (101) away from the second sprocket (108) extend to the outside of the winding bracket (100) and are fixedly connected to the third sprocket (111). The outer walls of the two third sprockets (111) are connected to the second chain.

6. The variable width double-roller friction winding structure according to claim 2, characterized in that, The guiding unit includes two fabric guide rollers (103), which are rotatably connected to the bottom of the take-up bracket (100). One of the fabric guide rollers (103) is located below the machine pull roller (110), and the other fabric guide roller (103) is located below the roll-up roller (102). The mesh fabric conveyed by the outer wall of the machine pull roller (110) passes around the outer walls of the two fabric guide rollers (103) in sequence and is then rolled onto the outer wall of the roll-up roller (102).

7. The variable width double-roller friction winding structure according to claim 2, characterized in that, The blocking unit includes: Two movable baffle units (104) are movably disposed inside the take-up bracket (100) and can move horizontally along the axial direction of the roll-up roller (102); A blocking part is provided at the end of the movable baffle unit (104) near the roll roller (102), and the movable baffle unit (104) is slidably sleeved with the outside of the roll roller (102) through the blocking part. The movable unit support tube (109) is located on the side of the idler roller (101) away from the roll roller (102) and is fixed to the side wall of the take-up bracket (100). The ends of the two movable baffle units (104) away from the roll roller (102) are detachably connected to the outside of the movable unit support tube (109).

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