Braid uniform gluing machine capable of achieving multi-stage buffering glue supply

Abstract

The utility model relates to the technical field of braid gluing, and discloses a braid uniform gluing machine with multi-stage buffer glue supply, which comprises a gluing machine main body, a fixed frame is fixed in the gluing machine main body, a glue spraying nozzle for gluing a braid is arranged at the bottom end of the fixed frame, and a glue storage tank is arranged beside the gluing machine main body. And the side of the glue storage tank is sequentially communicated with a first buffer tank and a second buffer tank through a pipeline. Through the combined design of the plunger pump and the first buffer tank, the one-way conduction characteristic of the one-way valve is matched, and primary pressure stability is constructed. When a glue solution is injected into the first buffer tank, the movable disc is pressed to push the connecting rod to drive the disc to slide, dynamic pressure compensation is formed by the elastic deformation and damping effect of the first spring and the hydraulic damper, and pulse fluctuation generated by the plunger pump can be absorbed. Furthermore, the pressure balance valve is automatically opened when the pressure difference between the tanks exceeds the limit, the glue solution is distributed to the second buffer tank, and secondary pressure regulation is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of webbing glue coating, in particular to a webbing uniform glue coating machine with multi-stage buffer glue supply. Background Art

[0002] In the field of webbing processing, the uniformity of the glue coating process directly affects the product's core performance indicators such as wear resistance and water resistance. As the quality requirements for webbing in industries such as clothing, luggage, and seat belts increase, problems such as uneven coating thickness and glue dripping caused by design flaws in the glue supply system of traditional glue coating equipment have become increasingly prominent. Especially in high-speed continuous production scenarios, even slight fluctuations in the glue delivery pressure can cause visible glue marks on the webbing surface, resulting in a high defective rate.

[0003] Existing webbing gluing machines generally use a single-stage glue supply structure, where a plunger pump directly drives the glue liquid through a rigid pipeline to the nozzle. This design has a fundamental flaw: when the plunger pump completes the switch between glue suction and glue discharge, pressure pulses are generated in the pipeline. The rigid pipeline lacks an effective energy absorption mechanism, resulting in large fluctuations in the instantaneous glue output from the nozzle. Although some equipment has attempted to alleviate this problem by increasing the volume of the glue storage tank, the viscosity changes caused by the ambient temperature during long-distance transportation of the glue liquid will couple with the pressure fluctuations, resulting in significant differences in the glue coating quality of traditional equipment in the low temperature environments of spring and winter and the high temperature environments of summer and autumn. Utility Model Content

[0004] The purpose of the utility model is to provide a webbing uniform glue coating machine with multi-stage buffer glue supply. Through the multi-stage buffer structure, the pressure gradient of the glue liquid is attenuated before entering the threaded glue delivery pipe, thereby ultimately ensuring that the fluctuation range of the glue supply pressure of the glue nozzle is reduced and the uniformity of glue coating is improved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage buffer glue supply webbing uniform glue coating machine, comprising a glue coating machine main body, a fixed frame is fixed in the glue coating machine main body, a glue spray nozzle for coating the webbing with glue is provided at the bottom end of the fixed frame, a glue storage tank is provided on the side of the glue coating machine main body, and the side of the glue storage tank is connected to a first buffer tank and a second buffer tank in sequence through a pipeline.

[0006] A plunger pump is provided at the bottom end of the glue storage tank, the feed end of the plunger pump is connected to the glue storage tank, the discharge end of the plunger pump is connected to a glue discharge pipe, and the glue discharge pipe is connected to the side of the first buffer tank away from the plunger pump.

[0007] A threaded rubber delivery hose is fixed to the glue outlet end of the second buffer tank, and the end of the threaded rubber delivery hose is connected to the glue spraying nozzle.

[0008] Preferably, a support leg is welded to the bottom end of the glue storage tank, a one-way valve is connected in series in the glue outlet pipe, and the flow direction of the one-way valve is directed from the plunger pump to the first buffer tank.

[0009] Preferably, the first buffer tank and the second buffer tank are both provided with a fixing seat outside to place the first buffer tank and the second buffer tank stably, and a temperature control device is embedded in the surface of the fixing seat. The temperature measuring probe and heating component of the temperature control device extend to the glue storage tank and the inner cavity of the first buffer tank respectively.

[0010] Preferably, a connecting sleeve is provided on the side wall of the first buffer tank, a movable disk slides inside the first buffer tank, the outer edge of the movable disk forms a sealed sliding fit with the inner wall of the first buffer tank, a connecting rod is fixed on the end face of the movable disk, and a circular disk is fixed on the side of the connecting rod away from the movable disk.

[0011] Preferably, a first spring is provided in the connecting sleeve, one end of the first spring being fixedly connected to the outside of the disc and the other end being fixedly connected to the inner wall of the connecting sleeve; a hydraulic damper is coaxially embedded in the first spring, and the end of the piston rod of the hydraulic damper is fixedly connected to the disc.

[0012] Preferably, the glue outlet at the bottom of the first buffer tank is connected to the glue inlet at the top of the second buffer tank through a connecting pipe, and a pressure balancing valve is connected in series in the connecting pipe. The opening pressure value of the pressure balancing valve is greater than the rated working pressure of the plunger pump.

[0013] Preferably, a support frame is fixed to the side of the second buffer tank, and a through hole for the threaded rubber hose to pass through is opened in the support frame.

[0014] Compared with the prior art, the present invention provides a webbing uniform glue coating machine with multi-stage buffer glue supply, which has the following beneficial effects:

[0015] 1. The multi-stage buffer glue supply webbing uniform glue coating machine, through the combined design of the plunger pump and the first buffer tank, cooperates with the one-way conduction characteristics of the one-way valve to build primary pressure stability. When the glue is injected into the first buffer tank, the movable disc is pressed to push the connecting rod to drive the disc to slide. The elastic deformation and damping effect of the first spring and the hydraulic damper form dynamic pressure compensation, which can absorb the pulse fluctuations generated by the plunger pump. Furthermore, the pressure balancing valve automatically opens when the pressure difference between the tanks exceeds the limit, and distributes the glue to the second buffer tank to form a secondary pressure regulation. This multi-stage buffer structure enables the glue to achieve a gradient attenuation of pressure before entering the threaded glue pipe, ultimately ensuring that the glue supply pressure fluctuation range of the glue nozzle is reduced and the glue coating uniformity is improved;

[0016] 2. This multi-stage buffered glue supply machine for evenly coating webbing glue reduces external vibration-induced shaking of the first and second buffer tanks through the rigid support of the fixed base. The temperature control device's temperature probe monitors the glue liquid temperature in real time, and the heating component dynamically adjusts to maintain constant glue viscosity. This coupled temperature-pressure control mechanism complements the pressure buffering function, preventing both glue shortages caused by decreased glue fluidity at low temperatures and dripping caused by excessive glue dilution at high temperatures. This improves glue buffering and ensures consistent webbing glue coating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of a multi-stage buffer glue supply webbing uniform glue coating machine of the utility model Figure 1 ;

[0018] Figure 2 This is a three-dimensional schematic diagram of a multi-stage buffer glue supply webbing uniform glue coating machine of the utility model Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the partial three-dimensional structure of a multi-stage buffer glue supply webbing uniform glue coating machine of the utility model Figure 1 ;

[0020] Figure 4 This is a partially disassembled structural diagram of a multi-stage buffer glue supply webbing uniform glue coating machine of the utility model;

[0021] Figure 5 This is a schematic diagram of the partial three-dimensional structure of a multi-stage buffer glue supply webbing uniform glue coating machine of the utility model Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the partial three-dimensional structure of a multi-stage buffer glue supply webbing uniform glue coating machine of the utility model Figure 3 .

[0023] In the figure: 1. Glue coating machine body; 21. Fixed frame; 22. Glue spray nozzle; 31. Glue storage tank; 311. Support leg; 312. Plunger pump; 313. Glue outlet pipe; 32. First buffer tank; 321. One-way valve; 322. Connecting sleeve; 323. Movable disk; 324. Connecting rod; 325. Disc; 326. First spring; 327. Hydraulic damper; 33. Second buffer tank; 41. Fixed seat; 42. Temperature control device; 43. Connecting pipe; 44. Pressure balancing valve; 51. Threaded rubber hose; 52. Support frame. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Example: See Figures 1-6 The utility model provides a technical solution: a multi-stage buffer glue supply webbing uniform glue coating machine, including a glue coating machine body 1, a fixing frame 21 is fixed in the glue coating machine body 1, and a glue spray nozzle 22 for gluing the webbing is provided at the bottom end of the fixing frame 21, and a glue storage tank 31 is provided on the side of the glue coating machine body 1, and the side of the glue storage tank 31 is connected to a first buffer tank 32 and a second buffer tank 33 in sequence through a pipeline.

[0026] A plunger pump 312 is provided at the bottom end of the glue storage tank 31. The feed end of the plunger pump 312 is connected to the glue storage tank 31. The discharge end of the plunger pump 312 is connected to a glue discharge pipe 313. The side of the glue discharge pipe 313 away from the plunger pump 312 is connected to the side of the first buffer tank 32.

[0027] A threaded glue delivery tube 51 is fixed to the glue outlet end of the second buffer tank 33 , and the end of the threaded glue delivery tube 51 is connected to the glue spraying nozzle 22 .

[0028] Furthermore, a support leg 311 is welded to the bottom end of the glue storage tank 31 , and a one-way valve 321 is connected in series in the glue outlet pipe 313 , and the flow direction of the one-way valve 321 is directed from the plunger pump 312 to the first buffer tank 32 .

[0029] Furthermore, a fixing seat 41 is provided outside the first buffer tank 32 and the second buffer tank 33 to stably place the first buffer tank 32 and the second buffer tank 33. A temperature control device 42 is embedded on the surface of the fixing seat 41. The temperature measuring probe and heating component of the temperature control device 42 extend to the inner cavity of the glue storage tank 31 and the first buffer tank 32 respectively.

[0030] Furthermore, a connecting sleeve 322 is provided on the side wall of the first buffer tank 32, and a movable disk 323 slides inside the first buffer tank 32. The outer edge of the movable disk 323 forms a sealed sliding fit with the inner wall of the first buffer tank 32. A connecting rod 324 is fixed to the end face of the movable disk 323, and a circular disk 325 is fixed to the side of the connecting rod 324 away from the movable disk 323.

[0031] Furthermore, a first spring 326 is disposed within the connecting sleeve 322. One end of the first spring 326 is fixedly connected to the exterior of the disc 325, and the other end is fixedly connected to the inner wall of the connecting sleeve 322. A hydraulic damper 327 is coaxially embedded within the first spring 326, and the end of the piston rod of the hydraulic damper 327 is fixedly connected to the disc 325.

[0032] Furthermore, the bottom glue outlet of the first buffer tank 32 is connected to the top glue inlet of the second buffer tank 33 through a connecting pipe 43, and a pressure balancing valve 44 is connected in series in the connecting pipe 43. The opening pressure value of the pressure balancing valve 44 is greater than the rated working pressure of the plunger pump 312.

[0033] Furthermore, a support frame 52 is fixed to the side of the second buffer tank 33 , and a through hole is defined in the support frame 52 for the threaded rubber delivery hose 51 to pass through.

[0034] During operation of this multi-stage buffered glue supply machine for evenly coating webbing glue, a plunger pump 312 draws glue from the bottom of the glue storage tank 31 and delivers it unidirectionally to the first buffer tank 32 via the glue outlet pipe 313. A one-way valve 321 connected in series with the glue outlet pipe 313 ensures that the glue flows only toward the first buffer tank 32. As the glue is injected into the first buffer tank 32, the pressure on the movable disk 323 within the tank pushes the connecting rod 324, driving the disk 325 to slide along the connecting sleeve 322. The first spring 326 and hydraulic damper 327 within the connecting sleeve 322 work together to absorb pressure pulses through elastic deformation and damping effects, allowing the glue to enter the connecting pipe 43 in a stable flow state.

[0035] The pressure-balancing valve 44 in the connecting pipe 43 opens when the pressure differential between the tanks exceeds the rated pressure of the plunger pump 312, distributing the glue to the second buffer tank 33. The second buffer tank 33 is then stabilized by the fixed base 41, while its associated temperature control device 42 simultaneously monitors and regulates the glue temperature within the tank. The glue ultimately flows through the bottom outlet of the second buffer tank 33 and enters the threaded glue delivery hose 51. The threaded glue delivery hose 51 extends in a threaded pattern through the through-hole of the support frame 52. The hose's length and curved structure further attenuate pressure fluctuations, ultimately delivering the glue to the glue nozzle 22 at a constant pressure, achieving uniform glue coating on the webbing surface.

[0036] The above embodiments merely represent one or several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A multi-stage buffer glue supply webbing uniform glue coating machine, comprising a glue coating machine body (1), a fixing frame (21) fixed in the glue coating machine body (1), a glue spraying nozzle (22) for coating the webbing with glue provided at the bottom end of the fixing frame (21), characterized in that: A glue storage tank (31) is provided on the side of the glue coating machine body (1), and the side of the glue storage tank (31) is connected to a first buffer tank (32) and a second buffer tank (33) in sequence through pipelines; a plunger pump (312) is provided at the bottom end of the glue storage tank (31), the feed end of the plunger pump (312) is connected to the glue storage tank (31), and the discharge end of the plunger pump (312) is connected to a glue discharge pipe (313), and the side of the glue discharge pipe (313) away from the plunger pump (312) is connected to the side of the first buffer tank (32); a threaded glue delivery pipe (51) is fixed to the glue discharge end of the second buffer tank (33), and the end of the threaded glue delivery pipe (51) is connected to the glue spray nozzle (22).

2. The multi-stage buffer glue supply uniform glue coating machine for webbing according to claim 1, characterized in that: A fixing seat (41) is provided outside the first buffer tank (32) and the second buffer tank (33) for stably placing the first buffer tank (32) and the second buffer tank (33). A temperature control device (42) is embedded on the surface of the fixing seat (41). The temperature measuring probe and the heating component of the temperature control device (42) extend into the inner cavity of the glue storage tank (31) and the first buffer tank (32), respectively.

3. The multi-stage buffer glue supply uniform glue coating machine for webbing according to claim 2, characterized in that: A connecting sleeve (322) is provided on the side wall of the first buffer tank (32), a movable disk (323) slides inside the first buffer tank (32), an outer edge of the movable disk (323) forms a sealed sliding fit with the inner wall of the first buffer tank (32), a connecting rod (324) is fixed to the end face of the movable disk (323), and a circular disk (325) is fixed on the side of the connecting rod (324) away from the movable disk (323).

4. The multi-stage buffer glue supply uniform glue coating machine for webbing according to claim 3, characterized in that: A first spring (326) is provided in the connecting sleeve (322); one end of the first spring (326) is fixedly connected to the outside of the disc (325), and the other end thereof is fixedly connected to the inner wall of the connecting sleeve (322); a hydraulic damper (327) is coaxially embedded in the first spring (326), and the end of the piston rod of the hydraulic damper (327) is fixedly connected to the disc (325).

5. The multi-stage buffer glue supply uniform glue coating machine for webbing according to claim 1, characterized in that: The glue outlet at the bottom of the first buffer tank (32) and the glue inlet at the top of the second buffer tank (33) are connected via a connecting pipe (43). A pressure balancing valve (44) is connected in series in the connecting pipe (43). The opening pressure value of the pressure balancing valve (44) is greater than the rated working pressure of the plunger pump (312).

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