A high-precision plastic coating machine

Abstract

The present invention discloses a high-precision plastic coating machine, including a plastic coating machine body, a tension adjustment device is arranged at one end of the plastic coating machine body, the tension adjustment device includes a left bracket and a right bracket, a tension adjustment roller, a positioning roller and a positioning beam are arranged in sequence from bottom to top between the left bracket and the right bracket, a first bearing mounting groove with an upward opening is arranged at the upper end of the left bracket, a first side adjustment through hole is arranged below the first bearing mounting groove, a left adjustment roller connecting shaft is integrally arranged at the middle of the left end face of the tension adjustment roller, and the left end of the left adjustment roller connecting shaft is arranged through the first side adjustment through hole; a left cylinder is fixedly arranged on the left end face of the left bracket, a first piston rod is arranged at the upper end of the left cylinder, and the upper end of the first piston rod is fixedly connected to the left end of the left adjustment roller connecting shaft. The above technical scheme has reasonable structural design, stable operation, reliable tension adjustment and good practicality.

Description

Technical Field

[0001] The invention relates to the technical field of plastic coating machines, and in particular to a high-precision plastic coating machine. Background Art

[0002] In the textile field, it is necessary to coat the produced fabric with plastic. The fabric enters the dye tank under the drive of external force. After dyeing, two scrapers are used to scrape off the excess dye on the front and back sides of the fabric. Before the fabric enters the dye tank, the tension at both ends of the fabric needs to be adjusted to ensure that the pressure of the scrapers on both ends of the fabric is the same. Patent No.: CN201821130337.4 discloses a plastic coating machine device for adjusting the tension of the fabric, including a tension adjustment roller, the two ends of the tension adjustment roller are respectively located inside the connecting bearing, the connecting bearing is connected to the plastic coating machine bracket for vertical sliding connection, vertical slide grooves are arranged on both sides of the plastic coating machine bracket, the vertical slide grooves slide inside to cooperate with the sliding slider, and an elastic spring is arranged under the sliding slider. Through the tension adjustment roller and the sliding slider, the tension adjustment roller and the sliding slider are adjusted. The block, the connecting bearing and the plastic coating machine bracket slide up and down, and under the action of the spring, the two ends of the tension adjustment roller can be adjusted to ensure the balance, so that the pressure of the two ends of the textile cloth on the two ends of the tension adjustment roller is the same, and the pressure on the scraper is also the same, so as to ensure that the thickness of the produced cloth is uniform. In actual use, once the tension on the front or back side of the cloth is insufficient, the corresponding end of the tension adjustment roller will be lifted up under the action of the spring force to tighten the cloth to maintain the tension. However, when one end of the tension adjustment roller is lifted, the cloth will also deviate to the lower end of the tension adjustment roller under the action of gravity. The cloth may slip from the periphery of the tension adjustment roller, causing the production to be forced to stop. The structural design is unreasonable, the operation is unstable, and the practicality is poor. Summary of the invention

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a high-precision plastic coating machine with reasonable structural design, stable operation, reliable tension adjustment and good practicality.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-precision plastic coating machine, comprising a plastic coating machine body, a tension adjustment device is arranged at one end of the plastic coating machine body, the tension adjustment device comprises a left bracket and a right bracket, a tension adjustment roller, a positioning roller and a positioning beam are arranged in sequence from bottom to top between the left bracket and the right bracket, a first bearing mounting groove with an upward opening is arranged at the upper end of the left bracket, a first side adjustment through hole is arranged below the first bearing mounting groove, a left adjustment roller connecting shaft is integrally arranged at the middle part of the left end surface of the tension adjustment roller, and the left end of the left adjustment roller connecting shaft is arranged through the first side adjustment through hole; a left cylinder is fixedly arranged on the left end surface of the left bracket, a first piston rod is arranged at the upper end of the left cylinder, and the upper end of the first piston rod is fixedly connected to the left end of the left adjustment roller connecting shaft;

[0005] The upper end of the right side bracket is provided with a second bearing mounting groove with an opening facing upward, and a second side adjustment through hole is provided below the second bearing mounting groove. A right adjusting roller connecting shaft is integrally provided at the middle part of the right end surface of the tension adjusting roller, and the right end of the right adjusting roller connecting shaft passes through the second side adjustment through hole. A right cylinder is fixedly provided on the right end surface of the right side bracket, and a second piston rod is provided at the upper end of the right cylinder, and the upper end of the second piston rod is fixedly connected to the right end of the right adjusting roller connecting shaft.

[0006] The present invention is further configured as follows: a pair of first vertical guide grooves are arranged on the inner wall surface of the first bearing mounting groove, a first positioning bearing is arranged in the first bearing mounting groove, a first side guide slider is integrally arranged on the side surface of the first positioning bearing aligned with the position of each first vertical guide groove, the first side guide slider is inserted into the aligned first vertical guide groove, and a plurality of first positioning springs are arranged between the lower end of the first positioning bearing and the inner bottom surface of the first bearing mounting groove.

[0007] The present invention is further configured as follows: a left positioning roller connecting shaft is integrally provided at the middle of the left end surface of the positioning roller, and the left end of the left positioning roller connecting shaft is penetrated into the inner hole of the first positioning bearing.

[0008] The present invention is further configured as follows: a pair of second vertical guide grooves are arranged on the inner wall surface of the second bearing mounting groove, a second positioning bearing is arranged in the second bearing mounting groove, a second side guide slider is integrally arranged on the side surface of the second positioning bearing aligned with the position of each second vertical guide groove, the second side guide slider is inserted into the aligned second vertical guide groove, and a plurality of second positioning springs are arranged between the lower end of the second positioning bearing and the inner bottom surface of the second bearing mounting groove.

[0009] The present invention is further configured as follows: a right positioning roller connecting shaft is integrally provided at the middle portion of the right end surface of the positioning roller, and the right end of the right positioning roller connecting shaft is inserted into the inner hole of the second positioning bearing.

[0010] The present invention is further configured as follows: the left end of the positioning beam is fixed to the upper end surface of the left bracket by bolts, and a plurality of third positioning springs are arranged between the lower end surface of the positioning beam and the upper end surface of the first positioning bearing; the right end of the positioning beam is fixed to the upper end surface of the right bracket by bolts, and a plurality of fourth positioning springs are arranged between the lower end surface of the positioning beam and the upper end surface of the second positioning bearing.

[0011] The advantages of the present invention are as follows: compared with the prior art, the structural arrangement of the present invention is more reasonable, the position of the tension-adjusting roller is adjusted up and down by lifting and lowering the piston rods of the first cylinder and the second cylinder, the operation is convenient, one end of the tension-adjusting roller will not be lifted up, and the position adjustment is accurate; positioning bearings are provided at both ends of the positioning roller, and positioning springs are provided at the upper and lower ends of each positioning bearing, the positioning roller and the positioning bearing are reliably positioned under the action of the positioning springs, the operation is stable, the tension adjustment is reliable, and the practicability is good.

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0014] Figure 2 is a cross-sectional schematic diagram of a left bracket according to an embodiment of the present invention;

[0015] Figure 3 is a cross-sectional schematic diagram of a right bracket according to an embodiment of the present invention;

[0016] Figure 4 It is a structural schematic diagram of a tension adjustment roller according to an embodiment of the present invention;

[0017] Figure 5 It is a structural schematic diagram of a positioning roller according to an embodiment of the present invention;

[0018] Figure 6 Schematic diagram of the cylinder piston rod in the extended state according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] In the description of this embodiment, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore, cannot be understood as limiting the present invention. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] See also Figures 1 to 6A high-precision plastic coating machine disclosed in the present invention comprises a plastic coating machine body 1, one end of which is provided with a tension adjusting device, the tension adjusting device comprising a left bracket 2 and a right bracket 3, a tension adjusting roller 4, a positioning roller 5 and a positioning crossbeam 6 are sequentially arranged between the left bracket 2 and the right bracket 3 from bottom to top, the upper end of the left bracket 2 is provided with a first bearing mounting groove 21 with an opening facing upward, a first side adjusting through hole 22 is arranged below the first bearing mounting groove 21, a left adjusting roller connecting shaft 41 is integrally arranged at the middle part of the left end surface of the tension adjusting roller 4, and the left end of the left adjusting roller connecting shaft 41 is arranged through the first side adjusting through hole; a left cylinder 7 is fixedly arranged on the left end surface of the left bracket 2, a first piston rod is arranged at the upper end of the left cylinder 7, and the upper end of the first piston rod is fixedly connected to the left end of the left adjusting roller connecting shaft 41;

[0021] The upper end of the right side bracket 3 is provided with a second bearing mounting groove 31 with an opening facing upward, and a second side adjustment through hole 32 is provided below the second bearing mounting groove 31. A right adjustment roller connecting shaft 42 is integrally provided in the middle of the right end surface of the tension adjustment roller 4, and the right end of the right adjustment roller connecting shaft 42 is arranged through the second side adjustment through hole; a right cylinder 8 is fixedly provided on the right end surface of the right side bracket 3, and a second piston rod is provided at the upper end of the right cylinder 8, and the upper end of the second piston rod is fixedly connected to the right end of the right adjustment roller connecting shaft 42.

[0022] Preferably, the left cylinder 7 is fixed to the left end face of the left bracket 2 by bolts, and the upper end of the first piston rod is fixed to the left end of the left adjusting roller connecting shaft 41 by bolts or by welding; the right cylinder 8 is fixed to the right end face of the right bracket 3 by bolts, and the upper end of the second piston rod is fixed to the right end of the right adjusting roller connecting shaft 42 by bolts or by welding.

[0023] The existing cloth is arranged between the tension adjustment roller 4 and the positioning roller 5; the piston rods of the left cylinder 7 and the right cylinder 8 are extended at the same time, driving the tension adjustment roller 4 to rise, so that the lower part of the periphery of the positioning roller 5 and the top part of the periphery of the tension adjustment roller 4 are in contact with the upper and lower surfaces of the cloth respectively.

[0024] In order to make the structural setting of the present invention more reasonable, as a preference, in this embodiment, a pair of first vertical guide grooves 211 are arranged on the inner wall surface of the first bearing mounting groove 21, a first positioning bearing 9 is arranged in the first bearing mounting groove 211, and a first side guide slider 91 is integrally arranged on the side surface of the first positioning bearing 9 aligned with the position of each first vertical guide groove 211, the first side guide slider 91 is inserted into the aligned first vertical guide groove 211, and a plurality of first positioning springs 10 are arranged between the lower end of the first positioning bearing 9 and the inner bottom surface of the first bearing mounting groove 21.

[0025] Preferably, the pair of first vertical guide slots 211 are two symmetrically arranged vertical guide slots, and the number of the first positioning springs 10 is 1-4.

[0026] A left positioning roller connecting shaft 51 is integrally provided at the middle of the left end surface of the positioning roller 5 , and the left end of the left positioning roller connecting shaft 51 is inserted into the inner hole of the first positioning bearing 9 .

[0027] A pair of second vertical guide grooves 311 are arranged on the inner wall surface of the second bearing mounting groove 31, a second positioning bearing 11 is arranged in the second bearing mounting groove 311, a second side guide slider 111 is integrally arranged on the side surface of the second positioning bearing 11 aligned with the position of each second vertical guide groove, the second side guide slider 111 is inserted into the aligned second vertical guide groove 311, a plurality of second positioning springs 12 are arranged between the lower end of the second positioning bearing 11 and the inner bottom surface of the second bearing mounting groove 31.

[0028] Preferably, the pair of second vertical guide slots 311 are two symmetrically arranged vertical guide slots, and the number of the second positioning springs 12 is 1-4.

[0029] A right positioning roller connecting shaft 52 is integrally provided at the middle of the right end surface of the positioning roller 5 , and the right end of the right positioning roller connecting shaft 5 is inserted into the inner hole of the second positioning bearing 11 .

[0030] The left end of the positioning beam 6 is fixed to the upper end surface of the left bracket 2 by bolts, and a plurality of third positioning springs 13 are arranged between the lower end surface of the positioning beam 6 and the upper end surface of the first positioning bearing 9; the right end of the positioning beam 6 is fixed to the upper end surface of the right bracket 3 by bolts, and a plurality of fourth positioning springs 14 are arranged between the lower end surface of the positioning beam 6 and the upper end surface of the second positioning bearing 11.

[0031] Preferably, the left bracket 2 and the right bracket 3 are symmetrically arranged.

[0032] In actual application, the tension adjusting roller is driven to adjust its position up and down by lifting and lowering the piston rods of the first cylinder and the second cylinder. The operation is convenient, one end of the tension adjusting roller will not be lifted up, and the position adjustment is accurate. Positioning bearings are provided at both ends of the positioning roller, and positioning springs are provided at the upper and lower ends of each positioning bearing. The positioning roller and the positioning bearing are reliably positioned under the action of the positioning springs, the operation is stable, the tension adjustment is reliable, and the practicability is good.

[0033] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A high-precision plastic coating machine, comprising a plastic coating machine body (1), wherein one end of the plastic coating machine body (1) is provided with a tension adjustment device, characterized in that: The tension adjustment device comprises a left bracket (2) and a right bracket (3), wherein a tension adjustment roller (4), a positioning roller (5) and a positioning crossbeam (6) are sequentially arranged between the left bracket (2) and the right bracket (3) from bottom to top, wherein a first bearing mounting groove (21) with an opening facing upward is arranged at the upper end of the left bracket (2), and a first side adjustment through hole (22) is arranged below the first bearing mounting groove (21), and a left adjustment roller connecting shaft (41) is integrally arranged at the middle part of the left end surface of the tension adjustment roller (4), and the left end of the left adjustment roller connecting shaft (41) passes through the first side adjustment through hole; a left cylinder (7) is fixedly arranged on the left end surface of the left bracket (2), and a first piston rod is arranged at the upper end of the left cylinder (7), and the upper end of the first piston rod is fixedly connected to the left end of the left adjustment roller connecting shaft (41); The upper end of the right bracket (3) is provided with a second bearing installation groove (31) with an opening facing upward, and a second side adjustment through hole (32) is provided below the second bearing installation groove (31); a right adjustment roller connecting shaft (42) is integrally provided at the middle of the right end surface of the tension adjustment roller (4), and the right end of the right adjustment roller connecting shaft (42) passes through the second side adjustment through hole; a right cylinder (8) is fixedly provided on the right end surface of the right bracket (3), and a second piston rod is provided at the upper end of the right cylinder (8), and the upper end of the second piston rod is fixedly connected to the right end of the right adjustment roller connecting shaft (42); A pair of first vertical guide grooves (211) are arranged on the inner wall surface of the first bearing installation groove (21), a first positioning bearing (9) is arranged in the first bearing installation groove (211), a first side guide slider (91) is integrally arranged on the side surface of the first positioning bearing (9) aligned with the position of each first vertical guide groove (211), the first side guide slider (91) is inserted into the aligned first vertical guide groove (211), and a plurality of first positioning springs (10) are arranged between the lower end of the first positioning bearing (9) and the inner bottom surface of the first bearing installation groove (21); A left positioning roller connecting shaft (51) is integrally provided at the middle of the left end surface of the positioning roller (2), and the left end of the left positioning roller connecting shaft (51) is inserted into the inner hole of the first positioning bearing (9); A pair of second vertical guide grooves (311) are arranged on the inner wall surface of the second bearing installation groove (31), a second positioning bearing (11) is arranged in the second bearing installation groove (311), a second side guide slider (111) is integrally arranged on the side surface of the second positioning bearing (11) aligned with the position of each second vertical guide groove, the second side guide slider (111) is inserted into the aligned second vertical guide groove (311), and a plurality of second positioning springs (12) are arranged between the lower end of the second positioning bearing (11) and the inner bottom surface of the second bearing installation groove (31); A right positioning roller connecting shaft (52) is integrally provided at the middle of the right end surface of the positioning roller (5), and the right end of the right positioning roller connecting shaft (5) is inserted into the inner hole of the second positioning bearing (11); The left cylinder (7) is fixed to the left end surface of the left bracket (2) by bolt connection, and the upper end of the first piston rod is fixed to the left end of the left adjusting roller connecting shaft (41) by bolt connection or welding; the right cylinder (8) is fixed to the right end surface of the right bracket (3) by bolt connection, and the upper end of the second piston rod is fixed to the right end of the right adjusting roller connecting shaft (42) by bolt connection or welding; A cloth is arranged between the tension adjustment roller (4) and the positioning roller (5); the piston rods of the left cylinder (7) and the right cylinder (8) are extended simultaneously, driving the tension adjustment roller (4) to rise, so that the outer periphery lower part of the positioning roller (5) and the outer periphery top of the tension adjustment roller (4) are in contact with the upper and lower surfaces of the cloth respectively.

2. A high-precision plastic coating machine according to claim 1, characterized in that: The left end of the positioning beam (6) is fixedly connected to the upper end surface of the left bracket (2) by bolts, and a plurality of third positioning springs (13) are arranged between the lower end surface of the positioning beam (6) and the upper end surface of the first positioning bearing (9); the right end of the positioning beam (6) is fixedly connected to the upper end surface of the right bracket (3) by bolts, and a plurality of fourth positioning springs (14) are arranged between the lower end surface of the positioning beam (6) and the upper end surface of the second positioning bearing (11).

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