Unwinding cloth guide roller set of cloth roll unwinding and spreading machine

Abstract

The utility model discloses an unwinding cloth guide roller set of a cloth roll unwinding and spreading machine, the spreading machine is respectively and rotatably provided with an unwinding roller, a damping roller, a tension roller A, a transition roller, a tension roller B, a driven roller, a power roller and a cloth spreading roller which are arranged in parallel, the damping roller is located above one side of the unwinding roller, and the transition roller is located on one side, opposite to the unwinding roller, of the damping roller. The tension roller A is located below the position between the damping roller and the transition roller, the driven roller is located below the position between the transition roller and the driven roller, the tension roller B is located below the position between the transition roller and the driven roller, the power roller is in press fit with the upper surface of the side, back to the unwinding roller, of the driven roller, and the cloth spreading roller is located below the power roller and located on the side, back to the unwinding roller, of the driven roller. According to the structure, the unwinding cloth guide roller set of the cloth roll unwinding and spreading machine effectively guarantees that tension is always kept when the cloth roll is unwound, the tension of the contact position of cloth and the power roller is always stable, and the situation that redundancy of the cloth between the damping roller and the unwinding roller is caused due to excessive unwinding when the cloth roll is unwound is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cloth roll unwinding equipment technical field, specifically to a kind of cloth roll unwinding and spreading machine's unwinding cloth guide roller group. BACKGROUND

[0002] Chip processing workshop needs to wear anti-static clothing. Anti-static clothing plays a crucial role in chip processing workshop, the main purpose is to prevent the generation and accumulation of static electricity and particulate matter, to ensure the cleanliness and efficiency of production environment. Anti-static clothing is usually made of high-quality fibers, with anti-static, antibacterial, waterproof and other multiple properties, which can protect the chip from static interference and particulate pollution.

[0003] In the production of anti-static clothing, it is necessary to first unwind and cut the anti-static cloth into cloth pieces of the same size and stack them into a pile, and then cut them according to the designed paper pattern, so as to not only improve the utilization rate of cloth pieces but also effectively improve the cutting efficiency. This requires that the cloth pieces stacked in the pile be neatly stacked and that the cloth pieces be completely unfolded and flat, otherwise the actual shape of the corresponding cloth piece cut out will deviate from the paper pattern, and the wrinkled cloth piece will also make the cutting not smooth, and even cause the cutting to be inaccurate along the paper pattern.

[0004] The cloth used to produce anti-static clothing is usually made of polyester material, which is wear-resistant, chemical-resistant, easy to clean, and can incorporate anti-static fibers or be coated with anti-static agents to reduce static accumulation. However, this cloth is relatively light and soft, and the smooth surface results in a small friction coefficient, so when the rolled cloth is unwound onto the table, it is easy to cause the cloth to slip during unwinding and conveying, which causes some parts of the cloth unwound onto the table to be bent and wrinkled and not completely unfolded. Therefore, in order to ensure that the stacked cloth pile is neat and consistent and has no wrinkles, at least one worker is needed to completely unfold the cloth that has just been cut and align it with the rest of the cloth at the bottom after the cutting is completed. After the above alignment is completed, the unwinding and cutting device is controlled to continue unwinding and cutting the next layer of cloth. This seriously affects the unwinding efficiency of the cloth. Moreover, additional labor is required for operation, increasing production costs. SUMMARY

[0005] The utility model aims at: overcome the prior art's insufficient, provide a kind of cloth roll unwinding and spreading machine's unwinding cloth guide roller group, by the damping roller and the two tension rollers set in sequence, so as to effectively guarantee that cloth always maintains tension when unwinding, and the tension of cloth and power roller contact position is always stable, it can also guarantee that cloth roll does not excessively unwind when unwinding and makes the cloth between damping roller and unwinding roller redundant.

[0006] The technical scheme adopted by the utility model is:

[0007] The unwinding guide cloth roller group of the cloth roll unwinding and spreading machine is provided with the parallel unwinding roller, the damping roller, the tension roller A, the transition roller, the tension roller B, the driven roller, the power roller and the spreading roller, the damping roller is located above the unwinding roller side, the transition roller is located on the damping roller side away from the unwinding roller, the tension roller A is located below the damping roller and the transition roller, the driven roller is located on the transition roller side away from the unwinding roller, the tension roller B is located below the transition roller and the driven roller, the power roller is in contact with the upper surface of the driven roller side away from the unwinding roller, and the spreading roller is located on the driven roller side away from the unwinding roller and below the power roller.

[0008] The further improved scheme of the utility model is that the two ends of the damping roller are rotatably connected with the spreading machine through damping bearings.

[0009] The further improved scheme of the utility model is that the surface of the damping roller is covered with a rubber layer A, and the rubber layer A is a cylindrical structure matched with the inner wall and the circumferential side wall of the damping roller.

[0010] The further improved scheme of the utility model is that the two ends of the tension roller A move up and down on the vertical groove A arranged on the corresponding side of the spreading machine.

[0011] The further improved scheme of the utility model is that the two ends of the tension roller A are connected with the spreading machine through the spring with a preset force, and the force of the spring moves the tension roller A downward.

[0012] The further improved scheme of the utility model is that the surface of the transition roller is covered with a plastic layer A, and the plastic layer A is a cylindrical structure matched with the inner wall and the circumferential side wall of the transition roller.

[0013] The further improved scheme of the utility model is that the two ends of the tension roller B move up and down on the vertical groove B arranged on the corresponding side of the spreading machine.

[0014] The further improved scheme of the utility model is that the surface of the driven roller is covered with a rubber layer B, and the rubber layer B is a cylindrical structure matched with the inner wall and the circumferential side wall of the driven roller.

[0015] The further improved scheme of the utility model is that the surface of the power roller is covered with a plastic layer B, the plastic layer B is a spiral structure around the surface of the power roller, and the spiral structure is symmetrically spiraled outward from the middle part of the circumferential side wall of the power roller to the two ends in the rotating direction of the power roller.

[0016] The utility model discloses further improve scheme is, the surface of the spread roller is covered and is equipped with plastic layer C, plastic layer C is the cylindrical structure that the inner wall is matched with the circumference lateral wall of spread roller, the surface of plastic layer C is covered with rubber band layer, the rubber band layer is the spiral structure that is around the rubber layer C surface, the spiral structure is symmetrical to the outside spiral along the direction of rotation of spread roller from the circumference lateral wall middle part of plastic layer C to both ends.

[0017] The utility model discloses the beneficial effect lies in:

[0018] First, the cloth roll unwinding and spreading machine's unwinding cloth guide roller group of the utility model, through setting up the damping roller and two tension rollers that set up in advance, can effectively guarantee that the cloth always keeps the tension when the cloth roll unwinds, and the tension of the contact position of the cloth and the power roller is always stable, can also guarantee that the cloth roll does not excessively unwind when the cloth roll unwinds, and the cloth between the damping roller and the unwinding roller appears redundancy.

[0019] Second, the cloth roll unwinding and spreading machine's unwinding cloth guide roller group of the utility model, through the action of tension roller A, can make the cloth between the damping roller and the transition roller always be tensioned, and through the action of the spring, make tension roller A can overcome the friction between the damping roller and the spreading machine, and the cloth between the cloth roll and the damping roller can also keep a certain tension.

[0020] Third, the cloth roll unwinding and spreading machine's unwinding cloth guide roller group of the utility model, through the action of the plastic layer A that is equipped on the surface of the transition roller, make the maximum static friction between the transition roller and the cloth contacted less than the maximum static friction between the damping roller and the cloth, and greater than the maximum static friction between the damping roller and the spreading machine.

[0021] Fourth, the cloth roll unwinding and spreading machine's unwinding cloth guide roller group of the utility model, the cloth after being around the transition roller passes between two limiting rollers, through the action of the limiting roller, thereby guaranteeing that the position of the cloth around tension roller B keeps relatively stable, and further make the contact surface of the cloth and tension roller B relatively stable, in addition, the tension action of tension roller B simply relies on the dead weight of tension roller B, guaranteeing that the tension action of tension roller B to the cloth is relatively stable, that is, the tension of the cloth around tension roller B and the contact of the driven roller keeps relatively constant, thereby guaranteeing that the power roller and the driven roller stably guide the cloth.

[0022] Fifth, the cloth roll unwinding and spreading machine's unwinding cloth guide roller group of the utility model, the power roller and the driven roller contact and press together, thereby having enough maximum static friction to the cloth passing between the power roller and the driven roller, not only can normally drive and convey the cloth, but also through the plastic layer B equipped on the surface of the power roller, the passing cloth will also be spread to both sides while conveying downward to the spreading roller, avoiding the cloth from wrinkling.

[0023] Sixth, the cloth roll unwinding and spreading machine's unwinding cloth guide roller group, through the compression of the driving roller and the driven roller, so that the driving roller and the driven roller respectively generate pressure on the cloth located between the driving roller and the driven roller, so that the corresponding maximum static friction force generated will be much larger than the maximum static friction force between the cloth and other rotating rollers, so that the driving roller can transmit the cloth by static friction, and the cloth will not slip with the driving roller or the driven roller.

[0024] Seventh, the cloth roll unwinding and spreading machine's unwinding cloth guide roller group, the cloth transmitted by the driving roller to the spreading roller will drive the spreading roller to rotate while being downwardly conveyed, and when the spreading roller rotates, the rubber cord layer arranged on the surface of the spreading roller will continue to spread the passing cloth to both sides or even further spread it, so that the downwardly hanging cloth is completely spread on both sides when falling on the table top, preventing the cloth falling on the table top from being wrinkled. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 It is a front view schematic diagram of the present application.

[0026] Fig. 2 It is a right view schematic diagram of the driving roller of the present application.

[0027] Fig. 3 It is a right view schematic diagram of the spreading roller of the present application. DETAILED DESCRIPTION

[0028] Combined Figs. 1-3 It can be known that the cloth roll unwinding and spreading machine's unwinding cloth guide roller group, the spreading machine is respectively rotatably provided with the parallel arranged unwinding roller 1, the damping roller 2, the tension roller A 3, the transition roller 4, the tension roller B 5, the driven roller 6, the driving roller 7 and the spreading roller 8, the damping roller 2 is located above one side of the unwinding roller 1, the transition roller 4 is located on the side of the damping roller 2 away from the unwinding roller 1, the tension roller A 3 is located below the damping roller 2 and the transition roller 4, the driven roller 6 is located on the side of the transition roller 4 away from the unwinding roller 1, the tension roller B 5 is located below the transition roller 4 and the driven roller 6, the driving roller 7 is in contact with and compressed with the upper surface of the side of the driven roller 6 away from the unwinding roller 1, and the spreading roller 8 is located on the side of the driven roller 6 away from the unwinding roller 1 and below the driving roller 7.

[0029] Both ends of the damping roller 2 are rotatably connected with the spreading machine through damping bearings.

[0030] The surface of the damping roller 2 is covered with a rubber layer A 10, and the rubber layer A 10 is a cylindrical structure matched with the inner wall and the circumferential side wall of the damping roller 2.

[0031] The maximum static friction between the damping roller 2 and the cloth 20 is greater than the maximum static friction and sliding friction between the damping bearing of the damping roller 2 and the spreading machine.

[0032] The two ends of the tension roller A3 move up and down along the vertical grooves A11 respectively arranged on the corresponding sides of the spreading machine.

[0033] The two ends of the tension roller A3 are connected to the spreading machine through the spring 12 with a preset force, and the force of the spring 12 moves the tension roller A3 downward.

[0034] The surface of the transition roller 4 is coated with a plastic layer A13, which is a cylindrical structure matching the inner wall and the circumferential side wall of the transition roller 4.

[0035] The two ends of the tension roller B5 move up and down along the vertical grooves B14 respectively arranged on the corresponding sides of the spreading machine.

[0036] The spreading machine is also provided with two limiting rollers 9 parallel between the transition roller 4 and the tension roller B5.

[0037] The surface of the driven roller 6 is coated with a rubber layer B15, which is a cylindrical structure matching the inner wall and the circumferential side wall of the driven roller 6.

[0038] The surface of the power roller 7 is coated with a plastic layer B16, which is a spiral structure around the surface of the power roller 7, and the spiral structure is symmetrically outward spiraling from the middle to both ends of the circumferential side wall of the power roller 7 in the direction of rotation of the power roller 7.

[0039] The surface of the spreading roller 8 is coated with a plastic layer C17, which is a cylindrical structure matching the inner wall and the circumferential side wall of the spreading roller 8, and the surface of the plastic layer C17 is coated with a rubber cord layer 18, which is a spiral structure around the surface of the rubber layer C17, and the spiral structure is symmetrically outward spiraling from the middle to both ends of the circumferential side wall of the plastic layer C17 in the direction of rotation of the spreading roller 8.

[0040] The surfaces of the plastic layer A13, the plastic layer B16 and the plastic layer C17 are all rough surfaces with protruding particles uniformly distributed.

[0041] The friction coefficients of the rubber layer A10 and the rubber layer B15 are equal, the friction coefficients of the plastic layer A13, the plastic layer B16 and the plastic layer C17 are equal, the friction coefficient of the rubber cord layer 18 is greater than the friction coefficients of the rubber layer A10 and the rubber layer B15, and the friction coefficients of the rubber layer A10 and the rubber layer B15 are greater than the friction coefficients of the plastic layer A13, the plastic layer B16 and the plastic layer C17.

[0042] When the application is used, the cloth roll 19 is fixed on the unwinding roller 1, and then the cloth 20 at the outer end of the cloth roll 19 is sequentially wound on the top of the damping roller 2, the bottom of the tension roller A 3 and the top of the transition roller 4, and then passes through the two limiting rollers 9, and then is sequentially wound on the bottom of the tension roller B 5 and the top of the driven roller 6, and is arranged between the driven roller 6 and the power roller 7, and finally is wound on the top of the cloth spreading roller 8 and then falls downward.

[0043] The power roller 7 is driven to rotate by the driving device, and the cloth 10 of the cloth roll 19 is pulled to unwind. When the cloth 20 unwound from the cloth roll 19 passes through the damping roller 2, the cloth 20 can drive the damping roller 2 to rotate due to the effect of the rubber layer A10 arranged on the surface of the damping roller 1. The damping roller 2 can quickly stop rotating because the two ends of the damping roller 2 are connected with the cloth spreading machine through damping bearings, so as to avoid the redundancy of the cloth 20 between the damping roller 2 and the unwinding roller 1 caused by the excessive unwinding of the cloth roll 19. The cloth 20 between the damping roller 2 and the transition roller 4 can be always tensioned by the effect of the tension roller A 3, and the tension roller A 3 can overcome the friction between the damping roller 2 and the cloth spreading machine by the effect of the spring 12, so that the cloth 20 between the cloth roll 19 and the damping roller 2 can also maintain a certain tension. The maximum static friction between the transition roller 4 and the cloth 20 contacted by the transition roller 4 is less than the maximum static friction between the damping roller 2 and the cloth 20 and greater than the maximum static friction between the damping roller 2 and the cloth spreading machine. The cloth 20 wound on the transition roller 4 passes through the two limiting rollers 9, and the position of the cloth 20 wound on the tension roller B 5 is kept relatively stable by the effect of the limiting roller 9, so that the contact surface between the cloth 20 and the tension roller B 5 is relatively stable. In addition, the tension of the tension roller B 5 is simply the weight of the tension roller B 5, so that the tension of the tension roller B 5 on the cloth 20 is relatively stable, that is, the tension of the cloth 20 wound on the tension roller B 5 and contacted with the driven roller 6 is relatively constant, so that the power roller 7 and the driven roller 6 can stably guide the cloth. The power roller 7 and the driven roller 6 are pressed and combined, so that the cloth 20 passing through the power roller 7 and the driven roller 6 has a large maximum static friction, which can not only normally drive and convey the cloth 20, but also expand the cloth 20 to both sides while conveying the cloth 20 downward to the cloth spreading roller 8 by the plastic layer B16 arranged on the surface of the power roller 7, so as to avoid the cloth 20 from being wrinkled. The cloth 20 conveyed by the power roller 7 to the cloth spreading roller 8 falls downward while driving the cloth spreading roller 8 to rotate by the plastic layer C17 arranged on the surface of the cloth spreading roller 8. When the cloth spreading roller 8 rotates, the rubber layer 18 arranged on the surface of the cloth spreading roller 8 continues to expand the cloth 20 to both sides, so as to ensure that the cloth 20 falling on the table is completely expanded to both sides, and prevent the cloth 20 falling on the table from being wrinkled.

Claims

1. A roll-off guide roller set of a roll-off unwinding and spreading machine, characterized in that: The spreading machine is respectively provided with parallel arranged unwinding roller (1), damping roller (2), tension roller A (3), transition roller (4), tension roller B (5), driven roller (6), power roller (7) and spreading roller (8), the damping roller (2) is located on the side above the unwinding roller (1), the transition roller (4) is located on the side of the damping roller (2) away from the unwinding roller (1), the tension roller A (3) is located below the damping roller (2) and the transition roller (4), the driven roller (6) is located on the side of the transition roller (4) away from the unwinding roller (1), the tension roller B (5) is located below the transition roller (4) and the driven roller (6), the power roller (7) is in contact with the upper surface of the driven roller (6) on the side away from the unwinding roller (1), and the spreading roller (8) is located on the side of the driven roller (6) away from the unwinding roller (1) and below the power roller (7).

2. The unwinding and guiding roller set of a cloth unwinding and spreading machine according to claim 1, characterized in that: Both ends of the damping roller (2) are rotatably connected to the spreading machine through damping bearings.

3. The unwinding and guiding roller set of a cloth unwinding and spreading machine according to claim 1, characterized in that: The surface of the damping roller (2) is covered with a rubber layer A (10), which is a cylindrical structure matching the inner wall and the circumferential side wall of the damping roller (2).

4. The unwinding and guiding roller set of a cloth unwinding and spreading machine according to claim 1, characterized in that: Both ends of the tension roller A (3) move up and down along the vertical groove A (11) arranged on the corresponding side of the spreading machine.

5. The unwinding and guiding roller set of a cloth unwinding and spreading machine according to claim 4, characterized in that: Both ends of the tension roller A (3) are connected to the spreading machine through the spring (12) with a predetermined force, and the force of the spring (12) moves the tension roller A (3) downward.

6. The unwinding and guiding roller set of a cloth unwinding and spreading machine according to claim 1, characterized in that: The surface of the transition roller (4) is covered with a plastic layer A (13), which is a cylindrical structure matching the inner wall and the circumferential side wall of the transition roller (4).

7. The unwinding and guiding roller set of a cloth unwinding and spreading machine according to claim 1, characterized in that: Both ends of the tension roller B (5) move up and down along the vertical groove B (14) arranged on the corresponding side of the spreading machine.

8. The unwinding and guiding roller set of a cloth unwinding and spreading machine according to claim 1, characterized in that: The surface of the driven roller (6) is covered with a rubber layer B (15), which is a cylindrical structure matching the inner wall and the circumferential side wall of the driven roller (6).

9. The unwinding and guiding roller set of a cloth unwinding and spreading machine according to claim 1, characterized in that: The surface of the power roller (7) is covered with a plastic layer B (16), which is a spiral structure around the surface of the power roller (7), and the spiral structure symmetrically spirals outward from the middle of the circumferential side wall of the power roller (7) to both ends of the power roller (7) in the rotation direction of the power roller (7).

10. The unwinding and guiding roller set of a cloth unwinding and spreading machine according to claim 1, characterized in that: The surface of the spreading roller (8) is covered with a plastic layer C (17), which is a cylindrical structure matching the inner wall and the circumferential side wall of the spreading roller (8), and the surface of the plastic layer C (17) is covered with an elastic rubber layer (18), which is a spiral structure around the surface of the plastic layer C (17), and the spiral structure symmetrically spirals outward from the middle of the circumferential side wall of the plastic layer C (17) to both ends of the plastic layer C (17) in the rotation direction of the spreading roller (8).

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