A rubber coating device for workwear production

Abstract

The utility model belongs to clothing production technical field, concretely relates to a kind of rubber coating device for work clothes production, including roller mill rack, and the lower roller is rotatably installed and sliding seat is slidably installed on roller mill rack, and synchronous mechanism is transmissionally connected between the two sliding seats, and fine adjustment mechanism is installed on sliding seat, and the top of outer sleeve tube in two fine adjustment mechanisms is respectively connected with manual adjusting mechanism and guide rod. The synchronous drive of synchronous mechanism makes personnel only need to operate unilateral manual adjusting mechanism to realize the synchronous adjustment of the height of the two ends of upper roller, effectively improves operating efficiency;The use of fine adjustment mechanism can make personnel finely adjust the height difference of the two ends of upper roller, avoid the slight gap influence rubber coating thickness uniformity, even lead to equipment damage, process misalignment.

Description

Technical Field

[0001] This utility model belongs to the field of clothing production technology, and specifically relates to a coating device for the production of work clothes. Background Technology

[0002] In the production of workwear (especially functional workwear resistant to acids, alkalis, and oil stains), the coating process is a core step that determines the product's protective performance and service life. By coating a uniform functional adhesive layer onto the base fabric surface, the workwear acquires key properties such as resistance to chemical penetration and abrasion resistance. As the core equipment in the coating process, the gap precision between the upper and lower rollers of the roller mill directly determines the uniformity of the adhesive layer thickness. Even slight deviations in the gap (such as a height difference of only 0.05mm between the two ends) can lead to coating defects where one side of the base fabric is thicker or thinner than the other, affecting not only the protective sealing of the workwear but also potentially reducing wearing comfort due to localized adhesive buildup. Over long-term operation, gap deviations can also cause equipment problems such as localized roller wear and unilateral bearing damage, increasing maintenance costs and production scrap rates.

[0003] Currently, the roller gap adjustment mechanism of the coating equipment used in the production of workwear has the following two technical problems: First, synchronous adjustment is inefficient and inaccurate. Existing devices mostly adopt a "dual-sided independent adjustment" structure—operators need to rotate the adjustment handwheels at both ends of the roll separately and use a ruler to judge whether the lifting height at both ends is consistent. This requires repeated measurements and multiple corrections, making the operation cumbersome.

[0004] Second, there is a lack of efficient methods for correcting minor deviations. During long-term operation, factors such as vibration, temperature changes, and roller wear can cause minor deviations to gradually appear even if the initial gap adjustment is corrected. Existing devices typically require independent adjustment on both sides or overall disassembly and calibration to address such deviations, which is not only time-consuming but may also introduce new deviations due to over-adjustment. Although some high-precision coating equipment is equipped with servo motor-driven fine-tuning mechanisms, their complex structure, high cost, and requirement for a professional control system make them difficult to popularize in small and medium-sized labor protection clothing manufacturing enterprises. Utility Model Content

[0005] To address the above problems, the purpose of this utility model is to provide a coating device for the production of workwear, which solves the problems of low efficiency in synchronous adjustment of roller gap and difficulty in correcting minor deviations in existing coating devices for the production of workwear.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a coating device for producing work clothes, comprising a roller mill frame, on which a lower roller is rotatably mounted, and a reduction motor is driven to the lower roller. A glue tank is fixed on the roller mill frame below the lower roller. Sliding seats are slidably mounted on both sides of the roller mill frame above the lower roller, and a synchronization mechanism is driven between the two sliding seats. A fine-tuning mechanism is mounted on the sliding seats. The fine-tuning mechanism includes an outer tube, and an inner sliding rod is slidably mounted on the inner side of the outer tube. A tapered screw one and a tapered screw two are threadedly connected at intervals on the side of the outer tube. A tapered hole with the same taper as the tapered ends of the tapered screw one and the tapered screw two is opened on the inner sliding rod. The bottom end of the inner sliding rod is mounted on the sliding seat. The top ends of the outer tubes in the two fine-tuning mechanisms are respectively connected to a manual adjustment mechanism and a guide rod.

[0007] The beneficial effects of this utility model are as follows: the synchronous drive of the synchronous mechanism allows personnel to operate only one side of the manual adjustment mechanism to achieve synchronous adjustment of the height of both ends of the upper roller, effectively improving operating efficiency; the use of the fine adjustment mechanism allows personnel to finely adjust the height difference between the two ends of the upper roller, avoiding the impact of slight gaps on the uniformity of the coating thickness, and even equipment damage and process inaccuracy.

[0008] In order to finely adjust the height of both ends of the upper roll by using a fine-tuning mechanism; As a further improvement to the above technical solution: the first and second tapered screws have the same structural dimensions, and the axial distance between the first and second tapered screws is L, the screw radius is R, and the distance between the two tapered holes on the inner slide rod is l. (in ).

[0009] The beneficial effects of this improvement are: the fine-tuning mechanism does not require frequent operation and is only used at the initial stage of equipment commissioning or at the beginning of a new maintenance cycle. By rotating two conical screws, one of which pushes the inner slide rod with its conical surface and the other of which supports the moved inner slide rod with its conical surface, the position of the inner slide rod in the outer sleeve can be precisely and stably adjusted in a straight line. This avoids the slight height difference between the two ends of the upper roller caused by equipment assembly or long-term working vibration, which would affect the coating quality.

[0010] To ensure the stability of the inner slide rod's movement within the outer sleeve; As a further improvement to the above technical solution: the inner sliding rod is a square rod structure, and the outer sleeve is a square tube structure.

[0011] The beneficial effect of this improvement is that the inner slide bar can only move linearly within the outer tube, avoiding movement in other directions that could affect the accuracy of the adjustment.

[0012] In order to effectively ensure the synchronicity of the lifting and lowering of the two sliding seats through the use of a synchronizing mechanism; As a further improvement to the above technical solution: the synchronization mechanism includes a rack, which is fixed on one side of the sliding seat. The rack is meshed with a gear, which is fixed at both ends of the synchronization shaft. The synchronization shaft is rotatably mounted on the mill frame.

[0013] The beneficial effect of this improvement is that by setting up two sets of gears and racks and a synchronous shaft, the sliding seat on one side can drive the sliding seat on the other side to move stably and synchronously when it moves.

[0014] To ensure the stability of the upper roller under stress; As a further improvement to the above technical solution: a guide rod lock is clamped on the outer side of the guide rod, the guide rod slides through the top of the rolling mill frame, and the guide rod lock is fixed on the rolling mill frame.

[0015] The beneficial effects of this improvement are as follows: When adjusting the height of the upper roll, loosen the bolts on the guide rod lock so that the guide rod can slide on the roll mill frame to provide support and limit. After the height of the upper roll is adjusted, tighten the bolts on the guide rod lock to lock the guide rod, thereby effectively ensuring the stability of the force on both ends of the upper roll.

[0016] To facilitate the adjustment of the height of the upper roller using a manual adjustment mechanism; As a further improvement to the above technical solution: the manual adjustment mechanism includes a connecting seat, which is fixedly mounted on the top of the inner slide rod. The connecting seat is rotatably sleeved on the bottom end of the screw. A handwheel is fixedly mounted on the top end of the screw, and the screw is threadedly connected to an internal thread seat, which is fixedly mounted on the top of the rolling mill frame.

[0017] The beneficial effects of this improvement are: the operator can rotate the screw via the handwheel, and the helical pair motion generated between the screw and the internal thread seat will drive the fine-tuning mechanism and the connected upper roller to move up and down conveniently.

[0018] To ensure the height stability of the upper roller; As a further improvement to the above technical solution: the screw is a trapezoidal screw structure.

[0019] The beneficial effect of this improvement is that the self-locking property of the trapezoidal spiral can effectively ensure the stability of the height of the upper roll when the force on the upper roll does not exceed the set threshold.

[0020] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the fine-tuning mechanism in this utility model; Figure 4 This is a cross-sectional view of the fine-tuning mechanism in this utility model; Figure 5 This is an enlarged view of A in this utility model; Figure 6 This is an enlarged view of B in this utility model; In the diagram: 1. Roll mill frame; 2. Lower roll; 3. Glue tank; 4. Sliding seat; 5. Synchronization mechanism; 51. Rack; 52. Gear; 53. Synchronization shaft; 6. Fine adjustment mechanism; 61. Outer tube; 62. Inner slide rod; 63. Tapered screw one; 64. Tapered screw two; 7. Manual adjustment mechanism; 71. Connecting seat; 72. Screw; 73. Handwheel; 74. Internal thread seat; 8. Guide rod; 9. Smooth rod lock; 10. Upper roll; 11. Gear motor. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0023] Example 1: As Figure 1As shown in Figure 6: A coating device for producing work clothes includes a roller mill frame 1. A lower roller 2 is rotatably mounted on the roller mill frame 1. The lower roller 2 is driven by a reduction motor 11. A glue tank 3 is fixed on the roller mill frame 1 below the lower roller 2. Sliding seats 4 are slidably mounted on both sides of the roller mill frame 1 above the lower roller 2. A synchronization mechanism 5 is driven between the two sliding seats 4. A fine-tuning mechanism 6 is mounted on the sliding seats 4. The fine-tuning mechanism 6 includes an outer tube 61. An inner sliding rod 62 is slidably mounted on the inner side of the outer tube 61. A tapered screw 63 and a tapered screw 64 are threadedly connected at intervals on the side of the outer tube 61. The inner sliding rod 62 has a taper that corresponds to the tapered ends of the tapered screws 63 and 64. The inner slide rod 62 has the same conical hole, and its bottom end is mounted on the sliding seat 4. The top ends of the outer sleeves 61 of the two fine-tuning mechanisms 6 are respectively connected to the manual adjustment mechanism 7 and the guide rod 8. Through the synchronous drive of the synchronization mechanism 5, the operator only needs to operate the manual adjustment mechanism 7 on one side to achieve synchronous adjustment of the height of both ends of the upper roller 10, effectively improving the operating efficiency. The use of the fine-tuning mechanism 6 allows the operator to finely adjust the height difference between the two ends of the upper roller 10, avoiding the impact of slight gap differences on the uniformity of the coating thickness, and even causing equipment damage and process inaccuracies. The conical screw 63 and the conical screw 64 have the same structural dimensions, and the axial distance between the conical screw 63 and the conical screw 64 is L, the screw radius is R, and the hole distance between the two conical holes on the inner slide rod 62 is l. (in The fine-tuning mechanism 6 requires minimal operation and is only used during the initial equipment commissioning phase or at the start of a new maintenance cycle. By rotating two conical screws 63 and 64, the conical surface of one screw pushes the inner slide rod 62, while the conical surface of the other screw supports the moved inner slide rod 62. This allows for precise and stable linear adjustment of the inner slide rod 62's position within the outer sleeve 61, preventing slight height differences at both ends of the upper roller 10 caused by equipment assembly or long-term operational vibrations, which could affect the coating quality. The inner slide rod 62 is a square rod structure, and the outer sleeve 61 is square. The tube structure allows the inner slide rod 62 to move linearly only within the outer tube 61, preventing movement in other directions from affecting the accuracy of the adjustment. The synchronization mechanism 5 includes a rack 51, which is fixed to one side of the sliding seat 4. The rack 51 is meshed with a gear 52, which is fixed to both ends of the synchronization shaft 53. The synchronization shaft 53 is rotatably mounted on the mill frame 1. The arrangement of the two sets of gears and racks and the synchronization shaft 53 allows the sliding seat 4 on one side to move synchronously and stably, driving the sliding seat 4 on the other side. The outer side of the guide rod 8 is clamped with a light... The guide rod 8 slides through the top of the mill frame 1. The guide rod lock 9 is fixed on the mill frame 1. When adjusting the height of the upper roll 10, the bolts on the guide rod lock 9 are loosened, allowing the guide rod 8 to slide on the mill frame 1 to provide support and limit. After the height adjustment of the upper roll 10 is completed, the bolts on the guide rod lock 9 are tightened to lock the guide rod 8, thereby effectively ensuring the stability of the forces on both ends of the upper roll 10. The manual adjustment mechanism 7 includes a connecting seat 71, which is fixed on the top of the inner slide rod 62. The connecting seat 71 is rotatably sleeved. At the bottom end of the screw 72, a handwheel 73 is fixedly provided at the top end of the screw 72, and the screw 72 is threadedly connected to an internal thread seat 74. The internal thread seat 74 is fixedly provided at the top of the rolling mill frame 1. The operator can rotate the screw 72 through the handwheel 73. The helical pair movement generated between the screw 72 and the internal thread seat 74 drives the fine adjustment mechanism 6 and the connected upper rolling mill 10 to move up and down conveniently. The screw 72 is a trapezoidal screw structure. The self-locking property of the trapezoidal screw can effectively ensure the stability of the height of the upper rolling mill 10 when the force on the upper rolling mill 10 does not exceed the set threshold.

[0024] The working principle of this technical solution is as follows: First, the initial gap between the upper roller 10 and the lower roller 2 is determined according to the thickness of the base fabric to be coated and the target adhesive layer thickness. For example, if the target adhesive layer thickness is 0.5mm and the base fabric thickness is 0.3mm, the initial gap is set to 0.8mm. The operator stands on one side of the manual adjustment mechanism 7, loosens the locking bolt of the light rod lock 9, and turns the handwheel 73 clockwise. The screw 72 moves downward in the internal thread seat 74, and pushes the inner slide rod 62, outer sleeve 61 and sliding seat 4 to descend synchronously through the connecting seat 71. The upper roller 10 descends with the sliding seat 4. At the same time, the rack 51 of one side of the sliding seat 4 drives the gear 52 to rotate, and transmits torque through the synchronous shaft 53, so that the gear 52 on the other side synchronously drives the corresponding rack 51 and sliding seat 4 to descend, realizing the synchronous lifting and lowering of both ends of the upper roller 10. During the process, a feeler gauge is inserted into the gap between the upper roller 10 and the lower roller 2 to measure the gap value. If the gap is greater than the set value, continue to turn the handwheel 73 clockwise. If the gap is less than the set value, turn the handwheel 73 counterclockwise to make a fine adjustment until the gap at both ends reaches the set value. Tighten the locking bolt of the light rod lock 9 to complete the initial synchronization adjustment. After initial synchronization adjustment, use a laser thickness gauge to detect the actual height difference between the two ends of the upper roller 10: if the detection finds that one end of the upper roller 10 is 0.03mm higher than the other end, and the end near the guide rod 8 is too high, it needs to be corrected by the fine adjustment mechanism 6; Using a wrench, first rotate the conical screw 63 counterclockwise to separate its conical end from the conical hole of the inner slide rod 62, leaving room for adjustment; then slowly rotate the conical screw 64 clockwise, its conical end pushing the inner slide rod 62 downward along the square outer sleeve 61. The amount of movement is controlled by the number of rotations until the laser thickness gauge shows that the height difference between the two ends of the upper roller 10 is ≤0.01mm; finally, rotate the conical screw 63 clockwise to make its conical end fit tightly against the conical hole of the inner slide rod 62 again, forming a stable support structure with the conical screw 63 pushing upward and the conical screw 64 pushing downward, thus completing the correction of minor deviations. After debugging, inject an appropriate amount of functional adhesive into the glue tank 3, start the reduction motor 11, and the lower roller 2 rotates at a constant speed and is immersed in the adhesive, bringing the adhesive to the contact point with the upper roller 10; at the same time, the workwear base fabric, such as canvas, is fed in from one side of the two rollers. Under the squeezing action of the two rollers, the base fabric is evenly coated with adhesive layer on its surface and output from the other side, completing the adhesive coating operation.

[0025] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A coating device for producing work clothes, characterized in that: The system includes a mill frame (1), on which a lower roll (2) is rotatably mounted. The lower roll (2) is driven by a geared motor (11). A glue trough (3) is fixed on the mill frame (1) below the lower roll (2). Sliding seats (4) are slidably mounted on both sides of the mill frame (1) above the lower roll (2). A synchronization mechanism (5) is driven between the two sliding seats (4). A fine-tuning mechanism (6) is mounted on the sliding seats (4). The fine-tuning mechanism (6) includes an outer sleeve (61). The inner slide rod (62) is slidably installed on the inner side of the outer tube (61). The outer tube (61) is threaded with a first tapered screw (63) and a second tapered screw (64) at intervals on the side. The inner slide rod (62) has a tapered hole with the same taper as the tapered end of the first tapered screw (63) and the second tapered screw (64). The bottom end of the inner slide rod (62) is installed on the sliding seat (4). The top ends of the outer tubes (61) in the two fine adjustment mechanisms (6) are respectively connected to a manual adjustment mechanism (7) and a guide rod (8).

2. The adhesive coating device for producing work clothes according to claim 1, characterized in that: The first tapered screw (63) and the second tapered screw (64) have the same structural dimensions, and the axial distance between the first tapered screw (63) and the second tapered screw (64) is L, the screw radius is R, and the distance between the two tapered holes on the inner slide rod (62) is l. (in ).

3. The adhesive coating device for producing work clothes according to claim 1, characterized in that: The inner slide bar (62) is a square rod structure, and the outer sleeve (61) is a square tube structure.

4. The adhesive coating device for producing work clothes according to claim 1, characterized in that: The synchronization mechanism (5) includes a rack (51), which is fixed on one side of the sliding seat (4). The rack (51) is meshed with a gear (52), which is fixed at both ends of the synchronization shaft (53). The synchronization shaft (53) is rotatably mounted on the mill frame (1).

5. The adhesive coating device for producing work clothes according to claim 1, characterized in that: A light rod lock (9) is clamped on the outside of the guide rod (8). The guide rod (8) slides through the top of the mill frame (1). The light rod lock (9) is fixed on the mill frame (1).

6. The adhesive coating device for producing work clothes according to claim 1, characterized in that: The manual adjustment mechanism (7) includes a connecting seat (71), which is fixed on the top of the inner slide rod (62). The connecting seat (71) is rotatably sleeved on the bottom end of the screw (72). A handwheel (73) is fixed on the top end of the screw (72), and the screw (72) is threadedly connected to an internal thread seat (74), which is fixed on the top of the rolling mill frame (1).

7. The adhesive coating device for producing work clothes according to claim 6, characterized in that: The screw (72) has a trapezoidal screw structure.

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