Glue spraying device of glue dispenser

Abstract

The utility model relates to a glue spraying device of a glue dispenser, which comprises a glue supply unit, a glue spraying valve unit and an air inlet unit, both the glue supply unit and the air inlet unit are connected with the glue spraying valve unit, the glue spraying valve unit comprises a main body, a firing pin assembly and a glue outlet assembly, the firing pin assembly is slidably arranged in the main body, and the glue outlet assembly is arranged at the lower end of the main body. The gas inlet unit is connected with the main body and used for supplying high-pressure gas to drive the firing pin assembly to move up and down, the glue supply unit is connected with the main body and used for supplying glue, and the up-down movement of the firing pin assembly is used for impacting the glue to drive the glue to enter the glue outlet assembly to be discharged. According to the glue spraying device of the glue dispenser, glue is driven to be sprayed out in a non-contact firing pin impacting mode, the problem of abrasion caused by direct contact of a needle head with a product in a traditional glue dispensing mode is effectively solved, the stability of equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing machines, in particular to a glue spraying device for a glue dispensing machine. Background Art

[0002] In the production process of inductors, they need to be glued. At present, the glue used in the glue dispensing process of inductors is mixed glue, which is mainly composed of metal magnetic powder, diluent and epoxy resin. When dispensing this glue, the glue is discharged by gas compression. The glue discharge needle needs to contact the product to discharge the glue, which will aggravate the wear of the glue gun body and require frequent maintenance, which brings inconvenience in use. Utility Model Content

[0003] The utility model aims to provide a glue dispensing device for a glue dispenser to solve the above-mentioned problems existing in the current glue dispensing process of inductor production.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A glue spraying device for a glue dispensing machine comprises a glue supply unit, a glue spraying valve unit and an air intake unit, wherein the glue supply unit and the air intake unit are both connected to the glue spraying valve unit, the glue spraying valve unit comprises a main body, a striker assembly and a glue discharge assembly, the striker assembly is slidably arranged in the main body, the glue discharge assembly is arranged at the lower end of the main body, the air intake unit is connected to the main body and is used to supply high-pressure gas to drive the striker assembly to move up and down, the glue supply unit is connected to the main body and is used to supply glue, and the up and down movement of the striker assembly is used to impact the glue to drive the glue to enter the glue discharge assembly for discharging glue.

[0006] Furthermore, the firing pin assembly includes a firing pin, a leather cup, a guide sleeve and a rebound mechanism, a first slide groove and a second slide groove are provided in the main body, the leather cup is slidably arranged in the first slide groove, the firing pin is connected to the leather cup, the guide sleeve is sleeved on the firing pin, and the guide sleeve is slidably arranged in the second slide groove, the first slide groove and the second slide groove are connected up and down, the air intake unit is connected to the second slide groove, and the high-pressure gas passed into the second slide groove is used to drive the leather cup to rise along the first slide groove, thereby driving the firing pin to rise, and the rebound mechanism is connected to the upper end of the leather cup, for driving the firing pin to rebound.

[0007] Furthermore, the rebound mechanism includes a spring seat, a spring bracket and a spring, the spring seat is arranged at the upper end of the main body, the spring is arranged up and down in the spring seat, one end of the spring bracket abuts against the spring, and the other end abuts against the firing pin, and the spring is used to drive the firing pin to descend and reset after the firing pin rises.

[0008] Furthermore, a differential head for adjusting the stroke of the spring support is arranged on the top of the spring seat.

[0009] Furthermore, the glue discharging assembly includes a glue discharging head, a nut and a needle, the glue discharging head is connected to the lower end of the main body, the glue supply unit is communicated with the glue discharging head, the nut is arranged at the lower end of the glue discharging head, the needle is arranged on the nut, the lower end of the striker is located in the glue discharging head, and the downward movement of the striker is used to drive the glue to spray out along the needle.

[0010] Furthermore, the glue supply unit includes a glue barrel and a glue barrel connecting block, and the glue barrel is connected to the glue outlet head through the glue barrel connecting block, so as to input glue into the glue outlet head.

[0011] Furthermore, the air intake unit includes an air intake and exhaust solenoid valve, which is connected to the side wall of the main body and communicated with the second slide groove for supplying high-pressure gas.

[0012] Beneficial effects of the utility model:

[0013] The glue spraying device of the glue dispensing machine of the utility model drives the glue to spray out by a non-contact needle impact method, thereby avoiding the direct contact of the traditional needle with the product surface. Since the direct contact between the needle and the product is reduced, the wear rate of the needle is greatly reduced, the service life of the glue spraying device and its key components is extended, and the maintenance cost and replacement frequency of the equipment are reduced.

[0014] Furthermore, by setting a differential head, the stroke of the spring bracket can be fine-tuned, thereby accurately controlling the stroke of the striker, and further accurately controlling the amount of glue sprayed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the glue spraying device of the glue dispensing machine of the utility model;

[0016] Figure 2 yes Figure 1 A schematic diagram of the structure from another angle;

[0017] Figure 3 It is a structural schematic diagram of a glue spraying valve unit in a glue spraying device of a glue dispensing machine of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the main body of the glue spraying device of the glue dispensing machine of the utility model;

[0019] Figure 5 The utility model is a structural schematic diagram of a striker assembly in a glue spraying device of a glue dispensing machine.

[0020] The names corresponding to the marks in the figure are:

[0021] Glue supply unit 100, glue barrel 110, glue barrel connecting block 120, glue spray valve unit 200, main body 210, first slide groove 211, second slide groove 212, striker assembly 220, striker 221, leather cup 222, guide sleeve 223, rebound mechanism 224, spring seat 224a, spring bracket 224b, spring 224c, differential head 224d, glue discharge assembly 230, glue discharge head 231, nut 232, needle 233, glue pressing pad 234, air intake unit 300, air inlet and exhaust solenoid valve 310. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] like Figures 1 to 5 As shown, this embodiment provides a glue spraying device for a glue dispensing machine, including a glue supply unit 100 , a glue spraying valve unit 200 and an air intake unit 300 .

[0024] like Figure 3 and Figure 5 As shown, the glue spraying valve unit includes a main body 210, a striker assembly 220 and a glue discharging assembly 230. 210, as the core component of the glue spraying valve unit, is provided with a first slide groove 211 and a second slide groove 212, which are connected to each other. The lower end of the main body 210 is also fixed with a glue discharging assembly 230 for achieving accurate glue spraying.

[0025] Figure 5 As shown, the striker assembly 220 includes a striker 221, a leather cup 222, a guide sleeve 223 and a rebound mechanism 224. The leather cup 222 is slidably disposed in the first slide groove 211 and connected to the striker 221. The guide sleeve 223 is sleeved on the striker 221 and slidably installed in the second slide groove 212. When high-pressure gas enters the second slide groove 212, it can push the leather cup 222 and the striker 221 to rise.

[0026] Figure 5 As shown, the rebound mechanism 224 includes a spring seat 224a, a spring bracket 224b and a spring 224c. The spring seat 224a is fixed to the upper end of the main body 210, the spring 224c is placed in the spring seat 224a, one end of the spring bracket 224b is in contact with the spring 224c, and the other end is connected to the striker 221. After the striker 221 rises, the elastic force of the spring 224c drives the striker 221 to return to its original position.

[0027] In some embodiments, a micrometer head 224d is provided, and the micrometer head 224d is provided on the top of the spring seat 224a, and is used to fine-tune the stroke of the spring bracket 224b, so as to accurately control the stroke of the striker 221, and further accurately control the amount of glue sprayed.

[0028] like Figure 1As shown, the glue discharging assembly 230 includes a glue discharging head 231, a nut 232 and a needle 233. The glue discharging head 231 is fixed to the lower end of the main body 210 and is connected to the glue supply unit 100. The nut 232 is installed below the glue discharging head 231 to fix the needle 233. The lower end of the striker 221 is located inside the glue discharging head 231, and a glue pressing pad 234 is provided at the lower part of the striker to prevent the glue from overflowing upward. When the striker 221 moves downward, it will hit the glue and push it to be sprayed out along the needle 233.

[0029] The glue supply unit 100 includes a glue barrel 110 and a glue barrel connecting block 120 . The glue barrel 110 is used to store mixed glue and is connected to the glue outlet head 231 via the glue barrel connecting block 120 to ensure that glue can be continuously and stably supplied to the glue spraying valve unit 200 .

[0030] In some embodiments, the air intake unit 300 includes an air intake and exhaust solenoid valve 310, which is connected to the side wall of the main body 210 and directly communicates with the second slide groove 212. By controlling the switch of the air intake and exhaust solenoid valve 310, precise control of high-pressure gas can be achieved, thereby driving the striker assembly 220 to move up and down.

[0031] Working principle:

[0032] Glue is continuously supplied to the glue discharge head 231 of the glue spray valve unit 200 through the glue supply unit 100, the air inlet and exhaust solenoid valve 310 of the air intake unit 300 is opened, and the high-pressure gas enters the second slide groove 212, pushing the leather cup 222 and the striker 221 to rise along the first slide groove 211. When the striker 221 rises to a certain position, the high-pressure gas supply stops, and the spring 224c begins to release energy, driving the striker 221 to quickly descend and hit the glue. The impact force of the striker 221 pushes the glue to be sprayed out at high speed along the needle 233, completing the dispensing operation. Continuous glue discharge is achieved through high-frequency continuous impacts multiple times per second.

[0033] The glue dispensing machine glue spraying device of this embodiment drives the glue to be sprayed out by a non-contact needle impact method, which effectively avoids the wear problem caused by the needle directly contacting the product in the traditional glue dispensing method, and improves the stability and service life of the equipment.

[0034] Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the utility model.

Claims

1. A glue dispensing machine glue spraying device, characterized in that: It includes a glue supply unit, a glue spray valve unit and an air intake unit, the glue supply unit and the air intake unit are both connected to the glue spray valve unit, the glue spray valve unit includes a main body, a striker assembly and a glue discharge assembly, the striker assembly is slidably arranged in the main body, the glue discharge assembly is arranged at the lower end of the main body, the air intake unit is connected to the main body, and is used to supply high-pressure gas to drive the striker assembly to move up and down, the glue supply unit is connected to the main body, and is used to supply glue, and the up and down movement of the striker assembly is used to impact the glue to drive the glue to enter the glue discharge assembly for discharging glue.

2. The glue dispensing machine glue spraying device according to claim 1, characterized in that: The firing pin assembly includes a firing pin, a leather cup, a guide sleeve and a rebound mechanism, a first slide groove and a second slide groove are arranged in the main body, the leather cup is slidably arranged in the first slide groove, the firing pin is connected to the leather cup, the guide sleeve is sleeved on the firing pin, and the guide sleeve is slidably arranged in the second slide groove, the first slide groove and the second slide groove are connected up and down, the air intake unit is connected to the second slide groove, and the high-pressure gas passed into the second slide groove is used to drive the leather cup to rise along the first slide groove, thereby driving the firing pin to rise, and the rebound mechanism is connected to the upper end of the leather cup, and is used to drive the firing pin to rebound.

3. The glue dispensing machine glue spraying device according to claim 2, characterized in that: The rebound mechanism includes a spring seat, a spring bracket and a spring. The spring seat is arranged at the upper end of the main body, and the spring is arranged up and down in the spring seat. One end of the spring bracket abuts against the spring, and the other end abuts against the striker. The spring is used to drive the striker to descend and reset after the striker rises.

4. The glue dispensing machine glue spraying device according to claim 3 is characterized in that: A differential head for adjusting the stroke of the spring support is arranged on the top of the spring seat.

5. The glue dispensing machine glue spraying device according to claim 4, characterized in that: The glue discharging assembly includes a glue discharging head, a nut and a needle. The glue discharging head is connected to the lower end of the main body, and the glue supply unit is communicated with the glue discharging head. The nut is arranged at the lower end of the glue discharging head, and the needle is arranged on the nut. The lower end of the striker is located in the glue discharging head, and the downward movement of the striker is used to drive the glue to be sprayed out along the needle.

6. The glue dispensing machine glue spraying device according to claim 5, characterized in that: The glue supply unit comprises a glue barrel and a glue barrel connecting block. The glue barrel is connected to the glue outlet head through the glue barrel connecting block and is used for inputting glue into the glue outlet head.

7. The glue dispensing machine glue spraying device according to claim 6, characterized in that: The air intake unit includes an air intake and exhaust solenoid valve, which is connected to the side wall of the main body and communicated with the second slide groove for supplying high-pressure gas.

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