Pneumatic reciprocating glue coating device

Abstract

The utility model relates to a kind of pneumatic reciprocating glue coating device, including rack, the rack has workbench, the workbench is equipped with beam striding on the workbench, the beam is equipped with a rodless cylinder along beam length direction arrangement, the slider of the rodless cylinder is equipped with support, the support bottom is equipped with glue coating head, the glue coating head is equipped with the hose of glue supply, the advantage and beneficial effect of utility model are in: pneumatic reciprocating glue coating device, mechanical scraping or spraying adhesive, realize automatic reciprocating glue coating, glue layer thickness is uniform, improve flocking quality.

Description

Technical Field

[0001] This utility model relates to the field of textile technology, and in particular to a pneumatic reciprocating adhesive applicator. Background Technology

[0002] Leather is an indispensable category of consumer goods, widely used in clothing, footwear, home furnishings, automobiles, public services, and many other fields. Among leather products, cowhide products made from genuine cowhide are popular with consumers due to their superior performance and high-end feel, resulting in a large consumption volume.

[0003] The production of artificial leather involves the manufacture of cowhide base fabric. This cowhide base fabric is formed by wet-laying cowhide fibers into a web and then hydroentangling it.

[0004] Flocking is a method of fixing fiber powder (short fibers obtained by grinding or cutting waste fibers) vertically onto an object or substrate coated with adhesive (such as plastic, wood, rubber, leather, paper, cloth, etc.).

[0005] Flocking with adhesive is a surface treatment process that uses an electrostatic field to vertically fix short fiber flocks onto an adhesive-coated substrate. The flocks are negatively charged after electrostatic treatment and move in a directional manner in a high-voltage electrostatic field, vertically implanting into the surface of the substrate coated with adhesive. Before flocking, adhesive needs to be applied to the surface of the substrate. In the existing adhesive application process, the adhesive is manually scooped onto the substrate surface and then applied to the substrate. This adhesive application method is inefficient and the adhesive thickness is uneven. The thickness of the adhesive layer affects the flock density; if it is too thick, it will be hard, and if it is too thin, it will leak through, resulting in unstable flocking quality. Utility Model Content

[0006] The purpose of this invention is to overcome the defects in the existing technology and provide a pneumatic reciprocating adhesive applicator.

[0007] To achieve the above objectives, the technical solution of this utility model is to design a pneumatic reciprocating adhesive applicator, including a frame, the frame having a worktable, a crossbeam spanning the worktable, a rodless cylinder arranged along the length of the crossbeam on the crossbeam, a bracket on the slider of the rodless cylinder, an adhesive applicator head at the bottom of the bracket, and a hose for supplying adhesive to the adhesive.

[0008] In a further preferred embodiment, the bracket is connected to the glue applicator via a pair of connecting plates, and the glue applicator is detachably mounted on the connecting plates.

[0009] In a further preferred embodiment, the connecting plate has waist-shaped connecting holes at both ends. One end of the connecting plate is connected to the bracket by bolts and nuts, and the other end of the connecting plate is connected to the glue applicator by bolts and nuts.

[0010] In a further preferred embodiment, the crossbeam is also provided with a linear guide rail, which is arranged parallel to the rodless cylinder. The bracket is provided with a sliding groove, and the bracket is slidably connected to the linear guide rail through the sliding groove.

[0011] In a further preferred embodiment, the crossbeam is also equipped with two limit switches, and the two limit switches are spaced apart on the crossbeam.

[0012] In a further preferred embodiment, a control valve is provided on one side of the frame, and the limit switch feeds back an electrical signal to the control valve, which controls the movement direction of the rodless cylinder.

[0013] The advantages and beneficial effects of this utility model are as follows: the pneumatic reciprocating adhesive applicator can mechanically scrape or spray adhesive to achieve automatic reciprocating adhesive application, resulting in uniform adhesive layer thickness and improved flocking quality. Attached Figure Description

[0014] Figure 1 This is one of the isometric drawings of this utility model;

[0015] Figure 2 This is the second isometric drawing of this utility model;

[0016] Figure 3 This is a top view of the present invention;

[0017] In the diagram: 1. Frame; 2. Workbench; 3. Support leg; 4. Crossbeam; 5. Limit switch; 6. Linear guide rail; 7. Bracket; 8. Rodless cylinder; 9. Connecting plate; 10. Glue applicator; 11. Hose; 12. Control valve. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0019] like Figure 1-3 As shown, a pneumatic reciprocating adhesive applicator includes a frame 1, the frame 1 having a worktable 2, and a crossbeam 4 spanning across the worktable 2, the crossbeam 4 being fixed to the worktable 2 by support legs 3 at both ends.

[0020] A rodless cylinder 8 is installed on the crossbeam 4, which is arranged along the length of the crossbeam. The rodless cylinder 8 is a special pneumatic actuator that drives a piston to reciprocate through compressed air, but does not require an external piston rod. Instead, it drives a slider to perform linear motion through magnetic coupling or mechanical connection, thereby saving installation space and enabling long-stroke applications. Based on different working principles, rodless cylinders are mainly divided into two types: magnetic coupling type and mechanical type.

[0021] Magnetic Coupled Rodless Cylinder: A set of high-strength permanent magnetic rings is installed on the piston. The magnetic lines of force interact with the external slider magnetic ring through the thin-walled cylinder (the magnetic poles are opposite and generate attraction). When the piston moves under the push of air pressure, the slider moves synchronously to realize the load displacement.

[0022] Mechanical rodless cylinder: The cylinder barrel has an axial groove, and the piston passes through the groove and is fixed to the external slider through the piston holder (or connecting mechanism); when compressed air pushes the piston, the slider moves with the piston in the groove, and the groove opening is covered by a sealing strip and a dustproof stainless steel strip to prevent leakage and contamination.

[0023] The core principle of the rodless cylinder 8 is to use compressed air to drive the piston inside the cylinder to move, and to transmit the power to the external slider through a coupling mechanism (magnetic or mechanical connection) to drive the load to move back and forth. In this embodiment, a mechanical rodless cylinder is preferred.

[0024] The mechanical rodless cylinder 8 includes at least a cylinder barrel, a piston, and a slider; the cylinder barrel has a cylindrical body and an interior space for piston movement.

[0025] The piston is located inside the cylinder and moves back and forth under the influence of compressed air.

[0026] The external load platform of the slider directly drives the actuator.

[0027] The slider is provided with a bracket 7, and the bottom of the bracket 7 is provided with a glue applicator 10. The glue applicator 10 is connected to an external glue supply device through a hose 11. Specifically, the bracket 7 is connected to the slider through a pair of connecting plates 9, and the glue applicator 10 is detachably mounted on the connecting plates 9.

[0028] Both ends of the connecting plate 9 are provided with waist-shaped connecting holes. One end of the connecting plate 9 is connected to the bracket 7 by bolts and nuts, and the other end of the connecting plate 9 is connected to the glue applicator 10 by bolts and nuts. This allows the distance between the glue applicator 10 and the worktable 2 to be adjusted, so that the glue application is uniform and efficient.

[0029] In order to enable the bracket 7 to work stably under the drive of the rodless cylinder 8, the crossbeam 4 is also provided with a linear guide rail 6. The linear guide rail 6 is arranged parallel to the rodless cylinder 8. The bracket 7 is provided with a sliding groove, and the bracket 7 is slidably connected to the linear guide rail 6 through the sliding groove. In this way, the bracket 7 can move stably on the rodless cylinder 8 and the linear guide rail 6.

[0030] Two limit switches 5 are also provided on the crossbeam 4. The two limit switches 5 are spaced apart on the crossbeam 4. When the support 7 moves and triggers one of the limit switches 5, it moves in the opposite direction, so that the support 7 reciprocates between the two limit switches 5.

[0031] Limit switches (also known as travel switches) are position detection devices that trigger circuit switching through mechanical collisions or magnetic field changes. They are widely used in industrial automation control. Their core function is to limit the travel of mechanical movement or detect the position of objects, enabling automatic stopping, reversing, and positioning of equipment.

[0032] Limit switches 5 include mechanical contact limit switches and non-contact (magnetic) limit switches.

[0033] The working principle of mechanical contact limit switches: When the moving part collides with the operating lever (such as roller or push rod), the mechanical force is transmitted to the internal micro switch, causing the contacts to switch the circuit state instantaneously (normally open contacts closed / normally closed contacts open). The reset method is divided into automatic reset (spring reset) and manual reset.

[0034] Permanent magnet limit switch: When the moving magnet approaches the stationary reed switch, the magnetic field attracts the reed contacts to open or close the circuit without physical contact.

[0035] In this embodiment, the limit switch 5 is preferably a mechanical contact limit switch. When the bracket collides with the roller, the mechanical force is transmitted to the internal micro switch, causing the contacts to switch the circuit state instantaneously. The bracket then moves in the opposite direction.

[0036] A control valve 12 is also provided on one side of the frame 1. The limit switch 5 feeds back an electrical signal to the control valve 12, and the control valve 12 controls the movement direction of the rodless cylinder 8.

[0037] A pneumatic reciprocating adhesive applicator mechanically scrapes or sprays adhesive, achieving automatic reciprocating adhesive application with uniform adhesive layer thickness, thus improving flocking quality.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pneumatic reciprocating adhesive applicator, comprising a frame, the frame having a worktable, and a crossbeam spanning the worktable, characterized in that, A rodless cylinder is provided on the crossbeam along the length of the crossbeam. A bracket is provided on the slider of the rodless cylinder. A glue applicator is provided at the bottom of the bracket. A hose for supplying glue is provided on the glue applicator.

2. The pneumatic reciprocating adhesive applicator according to claim 1, characterized in that, The bracket is connected to the glue applicator via a pair of connecting plates, and the glue applicator is detachably mounted on the connecting plates.

3. The pneumatic reciprocating adhesive applicator according to claim 2, characterized in that, Both ends of the connecting plate are provided with waist-shaped connecting holes. One end of the connecting plate is connected to the bracket by bolts and nuts, and the other end of the connecting plate is connected to the glue applicator by bolts and nuts.

4. The pneumatic reciprocating adhesive applicator according to claim 1, characterized in that, The crossbeam is also provided with a linear guide rail, which is arranged parallel to the rodless cylinder. The bracket is provided with a sliding groove, and the bracket is slidably connected to the linear guide rail through the sliding groove.

5. The pneumatic reciprocating adhesive applicator according to claim 1, characterized in that, The crossbeam is also equipped with two limit switches, and the two limit switches are spaced apart on the crossbeam.

6. A pneumatic reciprocating adhesive applicator according to claim 5, characterized in that, A control valve is also provided on one side of the frame. The limit switch feeds back an electrical signal to the control valve, which controls the movement direction of the rodless cylinder.

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