Multifunctional negative pressure system on sewing equipment

Abstract

The utility model discloses a multifunctional negative pressure system on sewing equipment, which belongs to the technical field of sewing machines, solves the problem of how to improve the functional diversification of negative pressure adsorption of cloth, and adopts the technical scheme that the multifunctional negative pressure system comprises a workbench and an electrical installation box, and a first adsorption table and a second adsorption table are arranged on the workbench; a lifting air cylinder is arranged on the first adsorption table and used for driving the first adsorption table to do lifting motion on the table top of the workbench, an air suction port of the dust collector is switched through a three-way air valve switching assembly, and the workbench can conduct negative pressure adsorption or conduct adsorption dust removal on the electrical installation box. And an air outlet of the dust collector can blow air to the electrical installation box, so that the effect of functional diversification is achieved.

Description

Technical Field

[0001] This utility model relates to the field of intelligent sewing equipment, and in particular, to a multifunctional negative pressure system for sewing equipment. Background Technology

[0002] With the continuous advancement of technology, the production of clothing and trousers has largely adopted intelligent sewing equipment, significantly reducing manual labor. Some sewing equipment uses cylinders as driving components to achieve mechanical movements. Driving the cylinders requires an air pump as the air source, with air pressure regulated via air pipes and air distributors. Furthermore, sewing equipment inevitably incorporates circuit modules within its casing. To perform intelligent actions, sensors are needed, and the air circuit control requires solenoid valves, which are connected to a controller (control module) via wires.

[0003] We know that the sewing process involves a lot of dust in the production area, including fabric scraps, lint, and other airborne particles. These airborne particles can easily enter the electrical equipment installation area. Because of the heat dissipation design of the electrical equipment installation area, the fan vents are prone to dust accumulation, leading to dust buildup in the installation space or adhering to the electrical components. This creates safety hazards and affects the lifespan of the electrical equipment.

[0004] Sewing equipment typically includes a worktable on which the fabric to be sewn is placed. To facilitate fabric positioning, air holes are installed in certain working areas of the worktable. The negative pressure generated by these air holes attracts the fabric. When the fabric is placed in the suction area, the suction remains on the fabric as it moves from left to right, without being deactivated. This results in high resistance when moving the fabric, making it prone to misalignment.

[0005] Additionally, when sewing clothes or jeans pockets, if there are seams in the fabric, the fabric will not be flat and will be raised at the seam. When making jeans pockets, the pocket fabric needs to be folded on the pocket board and placed on the pants fabric. At this time, the seam on the pants fabric is relatively high, and it is easy to snag the seam when pulling it away from the pocket board. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of the existing technology and at least to some extent solve the technical problems in the related technology, and to provide a multifunctional negative pressure system for sewing equipment. It has multiple functions, thereby using vacuum suction to adsorb fabric, and using the suction and exhaust of a vacuum cleaner to purify the electrical installation space.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a multi-functional negative pressure system for sewing equipment, including a workbench and an electrical installation box. A first suction table and a second suction table are provided on the workbench. A lifting cylinder is provided on the first suction table, and the lifting cylinder is used to drive the first suction table to move up and down on the workbench surface.

[0008] It also includes a three-way valve switching assembly, an air hose, a vacuum cleaner, an air blower, and a dust collection hopper. The air inlets of the first and second suction tables are connected to one air inlet of the three-way valve switching assembly via an air hose. The dust collection hopper is connected to the second air inlet of the three-way valve switching assembly via an air hose. The air outlet of the three-way valve switching assembly is connected to the air inlet of the vacuum cleaner via an air hose. The air outlet of the vacuum cleaner is connected to the air blower via an air hose.

[0009] The air blowing frame and dust collection hopper are fixedly positioned relative to each other in the dust removal area of ​​the electrical installation box.

[0010] The three-way valve switching assembly is controlled by a controller to maintain a single intake port.

[0011] Preferably, the air pipes of the first adsorption stage and the second adsorption stage are connected to a "Y"-shaped three-way pipe, and the air outlet of the three-way pipe is connected to a three-way air valve switching assembly through the air pipe.

[0012] Preferably, the lifting cylinders on the first adsorption stage are respectively configured as a first cylinder and a second cylinder, or a single cylinder is used.

[0013] Preferably, the first adsorption stage includes a stage plate and a box body. The stage plate is provided with a number of evenly distributed air holes, and the box body is a rectangular structure fixed below the stage plate. An air inlet is provided in the middle of the box body.

[0014] Preferably, the air pipe is a flexible hose, a tubing, or a corrugated pipe.

[0015] Compared with the prior art, the technical effects of this utility model are mainly reflected in the following aspects:

[0016] 1. An adsorption platform that can be raised and lowered is added to the ordinary negative pressure adsorption workbench, which is divided into a first adsorption platform and a second adsorption platform. The two are used together so that the fabric is placed on the first adsorption platform and the negative pressure adsorbs the fabric. After the pocket fabric is folded, the first adsorption platform can be lowered. At this time, the pocket plate can be pulled out. When pulling out, it is less likely to touch the seam on the pants fabric.

[0017] 2. By controlling the three-way air valve switching assembly, the negative pressure channel of the vacuum cleaner can be switched. It can be used for negative pressure adsorption on the workbench, or it can be switched to negative pressure adsorption on the dust collection hopper (for dust in the electrical box area). The air outlet on the vacuum cleaner can blow air into the electrical box space. This blowing and suction can remove dust and clean the electrical box. The vacuum cleaner works continuously and can maintain the stability of the negative pressure. Adsorption on the workbench and dust removal in the electrical box work alternately.

[0018] 3. It is simple and convenient to assemble, and easy to maintain and care for. Attached Figure Description

[0019] Figure 1 This is a top view of the workbench in the embodiment;

[0020] Figure 2 This is a dust removal layout diagram of the electrical installation box space in the embodiment;

[0021] Figure 3 This is a schematic diagram of the structural principle in the embodiment;

[0022] Figure 4 This is a schematic diagram illustrating the control principle of the cylinder and valve in the embodiment;

[0023] Figure 5 This is a schematic diagram illustrating the working principle in a working environment.

[0024] Reference numerals: 1. Workbench; 2. Electrical installation box; 3. First adsorption table; 4. Second adsorption table; 5. Three-way air valve switching assembly; 6. Air pipe; 7. Vacuum cleaner; 8. Air blower; 9. Dust collection hopper; 10. Three-way pipe; 11. First cylinder; 12. Second cylinder; 13. Platform; 14. Box body; 15. Air hole; 16. Air inlet; 17. Horizontal plane; 18. Trouser fabric; 19. Connector; 20. Pocket plate; 21. Pocket fabric. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered. Example

[0026] A multi-functional negative pressure system for sewing equipment, applicable to bag-applying machines. This system includes a workbench 1 and an electrical mounting box 2. The workbench 1 is designed as a rectangular area where fabric can be laid flat. The electrical mounting box 2 houses components such as circuit breakers, relay switches, and a PLC. This solution primarily utilizes negative pressure to remove dust from this space.

[0027] The workbench 1 is equipped with a first adsorption stage 3 and a second adsorption stage 4, for reference. Figure 1 and Figure 3 As shown, a lifting cylinder is provided on the first adsorption platform 3. The lifting cylinder is used to drive the first adsorption platform 3 to descend on the surface of the worktable 1, so that the first adsorption platform 3 can be kept at the same height (horizontal) as the worktable 1, or the height of the first adsorption platform 3 can be lowered. Preferably, in one example, the lifting cylinders on the first adsorption platform 3 are respectively set as a first cylinder 11 and a second cylinder 12. The first cylinder 11 and the second cylinder 12 operate synchronously and can lift the first adsorption platform 3, thereby reducing the load on a single cylinder and improving the efficiency of the lifting action. Of course, a single cylinder can also be used to realize the lifting action of the first adsorption platform 3.

[0028] Angle steel frames are installed on the sides of both the first cylinder 11 and the second cylinder 12 to fix them in place. The second adsorption platform 4 is designed based on the worktable 1 and cannot be raised or lowered.

[0029] Specifically, the first adsorption platform 3 includes a platform 13 and a box 14. The platform 13 has several evenly distributed air holes 15. The box 14, being a rectangular structure, is fixed below the platform 13, and has an air inlet 16 in its center. The box 14 and platform 13 together form an internal cavity. When air is drawn from the air inlet 16, a negative pressure is created inside the box 14, generating adsorption force at the air holes 15, thereby adsorbing the fabric. The fabric is placed... Figure 1 On the workbench 1 shown, the air hole 15 is covered. After the folding of the pocket fabric is completed, the lifting cylinder lowers the first suction table 3. This prevents the fabric joint of the pants fabric from being hooked (touched) when the bag plate is pulled out, making the mechanical action smoother and the processing more reliable and smooth. After the bag plate is pulled out, the fabric can be moved to the right.

[0030] This plan combines Figure 2 and Figure 3As can be seen, it also includes a three-way valve switching assembly 5, an air hose 6, a vacuum cleaner 7, an air blower 8, and a dust collection hopper 9. The air inlets 16 of the first adsorption platform 3 and the second adsorption platform 4 are connected to one air inlet of the three-way valve switching assembly 5 via the air hose 6. Since the first adsorption platform 3 and the second adsorption platform 4 require negative pressure and operate simultaneously, preferably, the air hoses 6 of the first adsorption platform 3 and the second adsorption platform 4 are connected to a "Y"-shaped three-way pipe 10, and the air outlet of the three-way pipe 10 is connected to the three-way valve switching assembly 5 via the air hose 6. In this way, the negative pressure of the first adsorption platform 3 and the second adsorption platform 4 can be controlled simultaneously. Additionally, the dust collection hopper 9 also requires negative pressure, and the dust collection hopper 9 is connected to the second air inlet of the three-way valve switching assembly 5 via the air hose 6. The air outlet of the three-way valve switching assembly 5 is connected to the air inlet of the vacuum cleaner 7 via the air hose 6. The three-way valve switching assembly 5 has two air inlets and one common air outlet, with the two air inlets controlled by a first air valve and a second air valve, respectively. The first air valve and the second air valve switch between working, so that the suction power of the vacuum cleaner 7 can be fully utilized.

[0031] The air outlet of the vacuum cleaner 7 is connected to the air blower 8 via the air pipe 6. The air blower 8 and the dust collection hopper 9 are fixed relative to each other in the dust removal area of ​​the electrical installation box 2. The vacuum cleaner 7 can be a canister vacuum cleaner, which can be purchased from the market. Therefore, its internal structure will not be further described. We know that the vacuum cleaner 7 has an air inlet and an air outlet. When the vacuum cleaner 7 is powered on, the air inlet creates negative pressure to draw in air, and the air outlet creates positive pressure to blow air outwards. The canister of the vacuum cleaner 7 has a filter structure, so dust remains in the canister, and the air discharged from the air outlet is dust-free air.

[0032] The three-way air valve switching assembly 5 is controlled by the controller to maintain a single air intake. That is, when the first air valve is open, the second air valve is closed; when the first air valve is closed, the second air valve is open.

[0033] Air pipe 6 can be a flexible hose, tubing, or corrugated pipe.

[0034] Regarding cylinder control, please refer to... Figure 4 As shown, a controller can control multiple solenoid valves, such as a first solenoid valve and a second solenoid valve. The first solenoid valve then controls the lifting cylinder (one or more cylinders); the second solenoid valve controls the first and second air valves. The core focus of this application is that the controller can control the first air valve to open and the second air valve to close, and vice versa. Of course, other equivalent control schemes can be used based on the above.

[0035] exist Figure 5As can be seen, at this time, the first adsorption platform 3 and the worktable 1 are kept horizontal. The trouser fabric with the joint 19 is placed on the horizontal surface 17 of the worktable 1. Then, the pocket fabric 21 is folded through the pocket plate 20 and placed on the trouser fabric. If the pocket plate 20 is to be removed (moved along the D1 direction), it will touch the joint 19. Before removal, the first adsorption platform 3 is lowered, and then the pocket plate 20 is removed, which solves the problem well. Of course, the above is only a typical example of this utility model. In addition, this utility model can have many other specific embodiments. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A multifunctional negative pressure system for a sewing machine, comprising a workbench (1) and an electrical mounting box (2), wherein a first suction table (3) and a second suction table (4) are provided on the workbench (1), characterized in that: A lifting cylinder is provided on the first adsorption platform (3), which is used to drive the first adsorption platform (3) to move up and down on the table surface of the workbench (1). It also includes a three-way valve switching assembly (5), an air hose (6), a vacuum cleaner (7), an air blower (8), and a dust collection hopper (9). The air inlets (16) of the first adsorption platform (3) and the second adsorption platform (4) are connected to one air inlet of the three-way valve switching assembly (5) through the air hose (6). The dust collection hopper (9) is connected to the second air inlet of the three-way valve switching assembly (5) through the air hose (6). The air outlet of the three-way valve switching assembly (5) is connected to the air inlet of the vacuum cleaner (7) through the air hose (6). The air outlet of the vacuum cleaner (7) is connected to the air blower (8) through the air hose (6). The air blowing frame (8) and the dust collection hopper (9) are fixed relative to each other in the dust removal area of ​​the electrical installation box (2). The three-way valve switching assembly (5) is controlled by the controller to maintain a single intake port.

2. The multifunctional negative pressure system on the sewing equipment according to claim 1, characterized in that: The air pipes (6) of the first adsorption stage (3) and the second adsorption stage (4) are connected to a "Y"-shaped three-way pipe (10), and the air outlet of the three-way pipe (10) is connected to the three-way air valve switching assembly (5) through the air pipe (6).

3. The multifunctional negative pressure system on the sewing equipment according to claim 1, characterized in that: The lifting cylinders on the first adsorption platform (3) are respectively set as a first cylinder (11) and a second cylinder (12), or a single cylinder is used.

4. The multifunctional negative pressure system on the sewing equipment according to claim 1, characterized in that: The first adsorption stage (3) includes a stage plate (13) and a box body (14). The stage plate (13) is provided with a number of evenly distributed air holes (15). The box body (14) is a rectangular structure fixed below the stage plate (13). An air inlet (16) is provided in the middle of the box body (14).

5. The multifunctional negative pressure system on the sewing equipment according to claim 1, characterized in that: The air pipe (6) is a flexible hose, tubing, or corrugated pipe.

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