Glue discharging device

Abstract

The utility model relates to the field of glue discharging equipment. The utility model aims at providing a glue discharging device which comprises a glue discharging assembly connected with a glue supply mechanism used for conveying glue. The glue discharging assembly comprises an ejector pin cylinder and a valve head which is detachably connected with the ejector pin cylinder; a glue outlet channel penetrating through the front end and the rear end of the valve head is arranged in the valve head, a glue injection hole communicated with the glue supply mechanism and the glue outlet channel is formed in the side wall of the valve head, a glue outlet head and a positioning sleeve which are communicated with the glue outlet channel are arranged at the two ends of the glue outlet channel respectively, and the ejector pin air cylinder pushes an ejector pin into the glue outlet channel in a reciprocating mode through the positioning sleeve. And controlling the ejector pin to block or dredge the glue injection hole and the glue outlet head. The connecting mode of the valve head and the ejector pin air cylinder and the structure of the pressure barrel are improved, the valve head and the glue pumping pipe are conveniently cleaned, the cleaning efficiency of the device is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of glue discharging equipment, in particular to a glue discharging device. Background Art

[0002] In the industrial production process, the glue dispensing device is a common production equipment, which is used to accurately apply glue to the workpiece. However, most of the existing glue dispensing devices have some problems. At present, the glue dispensing valve head and the precision workpiece that controls the valve head passage are of an integrated design, which is not easy to disassemble, making it very inconvenient to clean the glue passage inside the valve head. After the production is completed, the residual glue is mostly located in the passage inside the valve head, which greatly increases the difficulty of cleaning the valve head, and the frequent cleaning of the precision workpiece affects its service life. Secondly, the barrel cover and the glue delivery hose of the pressure barrel are mostly of an integrated structure. To clean the glue delivery hose in the pressure barrel, the barrel cover and the barrel body need to be separated, which is cumbersome and inefficient. Utility Model Content

[0003] The utility model aims to provide a glue discharging device, which improves the connection mode between the valve head and the ejector cylinder and the structure of the pressure barrel, realizes convenient cleaning of the valve head and the glue feeding pipe, and improves the cleaning efficiency and service life of the device.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A glue discharging device comprises a glue discharging component, wherein the glue discharging component is connected to a glue supply mechanism for conveying glue;

[0006] The glue outlet assembly includes an ejector cylinder and a valve head detachably connected to the ejector cylinder; a glue outlet channel running through the front and rear ends of the valve head is provided in the valve head, a glue injection hole connecting the glue supply mechanism and the glue outlet channel is provided on the side wall of the valve head, and a glue outlet head and a positioning sleeve connected thereto are provided at both ends of the glue outlet channel, the ejector cylinder reciprocates to push the ejector into the glue outlet channel through the positioning sleeve to control the ejector to block or clear the glue injection hole and the glue outlet head.

[0007] Compared with the prior art, the advantages of the utility model are:

[0008] 1. The valve head and the ejector cylinder can be disassembled and connected by the cooperation of the fixing column arranged at the rear end of the valve head, the sleeve at the front end of the ejector cylinder and the abutment part, so as to achieve the effect of rapid disassembly and assembly of the valve head, which is convenient for daily cleaning and maintenance of the valve head alone. When cleaning the valve head, there is no need to clean the ejector cylinder, which greatly improves the life of the ejector cylinder and does not cause the precision of the ejector cylinder to decrease due to frequent cleaning. In addition, cleaning the valve head alone is more convenient and thorough.

[0009] 2. Through the cooperation of a number of spring plungers arranged on the hose seat and the pipe joint connected to the rubber delivery hose, the rubber delivery hose and the pressure barrel can be disassembled and connected, so as to achieve the effect of convenient and quick cleaning of the rubber delivery hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural schematic diagram of a glue discharging device of the utility model;

[0011] Figure 2 This is a structural front view of a glue discharging device of the utility model;

[0012] Figure 3 This is a structural top view of a glue discharging device of the utility model;

[0013] Figure 4 This is a structural exploded diagram of the glue discharging component of the utility model;

[0014] Figure 5 yes Figure 4 Rear view of

[0015] Figure 6 This is a simplified structural diagram of the valve head of the utility model;

[0016] Figure 7 It is a simplified structural diagram of the ejector cylinder of the utility model;

[0017] Figure 8 This is a simplified structural diagram of the glue delivery component of the utility model;

[0018] Fig. 9 It is a simplified structural diagram of the pipe joint of the utility model;

[0019] Fig.10 This is a structural explosion diagram of the pressure barrel of the utility model;

[0020] Fig.11 It is a structural diagram of a barrel cover of the utility model.

[0021] Explanation of reference numerals: 1 pressure barrel, 11 barrel body, 12 barrel cover, 13 hose seat, 14 spring plunger, 2 glue discharging assemblies, 21 ejector cylinder, 22 valve head, 221 glue discharging channel, 222 glue injection hole, 223 glue discharging head, 224 positioning sleeve, 23 fixing column, 231 annular groove, 24 sleeve, 241 abutment, 3 glue delivery assembly, 31 glue delivery hose, 32 glue delivery hose, 33 pipe joint, 331 sealing ring, 332 annular positioning groove, 4 fixing unit. DETAILED DESCRIPTION

[0022] The content of the utility model is described in detail below in conjunction with the accompanying drawings and embodiments of the specification, but the protection content of the utility model is not limited to the following:

[0023] like Figures 1 to 11 Shown is a schematic diagram of an embodiment of a glue discharging device provided by the utility model.

[0024] A glue discharging device, comprising a glue discharging component 2, wherein the glue discharging component 2 is connected to a glue supply mechanism for conveying glue;

[0025] The glue discharging assembly 2 includes an ejector cylinder 21 and a valve head 22 detachably connected to the ejector cylinder 21; a glue discharging channel 221 is provided in the valve head 22 and runs through the front and rear ends thereof; a glue injection hole 222 connecting the glue supply mechanism and the glue discharging channel 221 is provided on the side wall of the valve head 22; a glue discharging head 223 and a positioning sleeve 224 connected thereto are provided at both ends of the glue discharging channel 221 respectively; the ejector cylinder 21 reciprocates and pushes the ejector into the glue discharging channel 221 via the positioning sleeve 224, and controls the ejector to block or clear the glue injection hole 222 and the glue discharging head 223.

[0026] The ejector cylinder 21 is a commonly used component in glue dispensing machines or some glue supply equipment, and the piston rod of the cylinder body is needle-shaped. Since the ejector cylinder 21 is a conventional component in the art, the utility model does not describe the structure of the ejector cylinder 21 in detail. The glue supply mechanism can be any mechanism that can deliver glue to the glue dispensing component 2.

[0027] Furthermore, the rear end face of the valve head 22 is provided with a plurality of fixing columns 23, and an annular groove 231 is provided on the outer wall of the fixing column 23. The front end of the ejector cylinder 21 is provided with a plurality of sleeves 24 into which the fixing columns 23 can be inserted, and the sleeve 24 is provided with an abutting piece 241 for abutting the annular groove 231, so as to realize the disassembly and assembly connection between the valve head 22 and the ejector cylinder 21.

[0028] Furthermore, the sleeve 24 is provided with a screw hole, the abutment 241 is a bolt screwed with the sleeve 24 through the screw hole, the fixing column 23 is inserted into the sleeve 24, and the end of the bolt is screwed into the sleeve 24 through the screw hole and abuts against the annular groove 231 of the fixing column 23, so as to realize the detachable connection between the fixing column 23 and the sleeve 24. Furthermore, the glue supply mechanism includes a pressure barrel 1 for containing glue and a glue delivery component 3 connected to the pressure barrel 1;

[0029] The glue delivery assembly 3 includes a glue delivery pipe 31 inserted in the pressure barrel 1 , a glue delivery pipe 32 connected to the glue delivery pipe 31 , and a pipe joint 33 provided between the glue delivery pipe 31 and the glue delivery pipe 32 . The glue delivery pipe 32 is connected to the glue injection hole 222 .

[0030] Furthermore, the pressure barrel 1 and the ejector cylinder 21 are both connected to an external air circuit to provide air pressure for the pressure barrel 1 and control the operation of the ejector cylinder 21 .

[0031] Furthermore, a plurality of rubber sealing rings 331 are provided at the lower end of the pipe joint 33;

[0032] The rubber sealing ring 331 is used to seal the gap between the pipe joint 33 and the hose seat 13 to ensure the air tightness of the pressure barrel 1.

[0033] Furthermore, the pressure barrel 1 includes a barrel body 11 connected to an external gas circuit (the barrel cover 12 of the barrel body 11 is provided with an air inlet connected to the gas circuit) and a barrel cover 12, the surface of the barrel cover 12 is provided with a hose seat 13 that allows the rubber hose 31 to extend into the barrel body 11, and a plurality of retractable and deformable spring plungers 14 are arranged on the inner wall of the hose seat 13, the pipe joint 33 is detachably connected to the hose seat 13, and the outer wall of the pipe joint 33 is provided with an annular positioning groove 332 for the spring plunger 14 to engage; the rubber sealing ring 331 is located below the annular positioning groove 332.

[0034] The upper and lower wall surfaces of the pipe joint 33 are at a certain angle to the groove wall of the annular positioning groove 332 and have a smooth transition to ensure smooth engagement between the spring plunger 14 and the annular positioning groove 332;

[0035] The spring plunger 14 can be extended and deformed on the line connecting the spring plunger 14 and the central axis of the hose seat, so that when the pipe joint 33 is inserted into or pulled out of the hose seat 13, the spring plunger 14 is engaged with or disengaged from the annular positioning groove 332.

[0036] Furthermore, the barrel body 11 and the barrel cover 12 are detachably connected, and the detachable connection between the barrel body 11 and the barrel cover is achieved by screwing and pressing the bolts hinged on the outside of the barrel body 11 into the corresponding notches on the barrel cover 12. This method is a common detachable method of the pressure barrel 1, so it will not be described in detail.

[0037] Furthermore, the glue discharge head 223 is a tubular structure with an inner diameter gradually decreasing from the back to the front, so as to ensure accurate coating of the glue and reduce waste.

[0038] Furthermore, a fixing unit 4 for connecting an external workpiece is provided on the outer surface of the ejector cylinder 21;

[0039] The fixing unit 4 may be a clamp with bolts, which is convenient for disassembly and assembly to be connected to the outer wall of some tubular workpieces. Of course, the fixing unit 4 may also be some other fixing structures.

[0040] Furthermore, the positioning sleeve 224 is integrally formed with the valve head 22 to ensure the integrity of the valve head 22 structure.

[0041] The application process of the utility model is roughly as follows:

[0042] First, the external air circuit conveys air into the pressure barrel 1. Under the action of air pressure, the glue contained in the pressure barrel 1 is conveyed into the glue delivery pipe 31. Then, the glue is poured into the glue injection hole 222 through the pipe joint 33 and the glue delivery pipe 32. At this time, the ejector cylinder 21 retracts the ejector under the control of the external air circuit. The glue injection hole 222 and the glue outlet head 223 are in a cleared state. The glue flows into the glue outlet channel 221 through the glue injection hole 222 and is discharged to the outside through the glue outlet head 223. Then, the ejector cylinder 21 pushes the ejector under the control of the external air circuit. At this time, the ejector blocks the glue injection hole 222 and the glue outlet head 223. At this time, the glue outlet head 223 stops discharging glue.

[0043] In this way, the ejector cylinder 21 pushes the ejector back and forth into the glue outlet channel 221 through the positioning sleeve 224, and controls the ejector to block or clear the glue injection hole 222 and the glue outlet head 223 to meet actual production needs.

[0044] After the production is finished, the rubber delivery pipe 31 can be pulled out from the pressure barrel 1. When it is pulled upward, the annular positioning groove 332 on the pipe joint 33 squeezes the spring plunger 14 on the rubber hose seat 13, causing it to undergo telescopic deformation, so that the spring plunger 14 is disengaged from the annular positioning groove;

[0045] Then, the abutment piece 241 on the sleeve 24 of the ejector cylinder 21 is screwed out to disengage the fixing column 23 from the sleeve 24 , thereby separating the valve head 22 from the ejector cylinder 21 , and finally the valve head 22 and the rubber feeding tube 31 are cleaned and maintained.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A glue discharging device, characterized in that: It comprises a glue discharging component (2), wherein the glue discharging component (2) is connected to a glue supply mechanism for conveying glue; The glue discharge assembly (2) comprises an ejector cylinder (21) and a valve head (22) detachably connected to the ejector cylinder (21); a glue discharge channel (221) penetrating the front and rear ends of the valve head (22) is provided in the valve head (22); a glue injection hole (222) communicating with a glue supply mechanism and the glue discharge channel (221) is provided on a side wall of the valve head (22); a glue discharge head (223) and a positioning sleeve (224) communicating with the glue discharge channel (221) are provided at both ends of the glue discharge channel (221); the ejector cylinder (21) reciprocates to push the ejector into the glue discharge channel (221) via the positioning sleeve (224), and controls the ejector to block or clear the glue injection hole (222) and the glue discharge head (223).

2. The glue discharging device according to claim 1, characterized in that: The rear end surface of the valve head (22) is provided with a plurality of fixing columns (23), and the outer wall of the fixing columns (23) is provided with an annular groove (231). The front end of the ejector cylinder (21) is provided with a plurality of sleeves (24) into which the fixing columns (23) can be inserted, and the sleeves (24) are provided with abutting pieces (241) for abutting against the annular grooves (231), so as to realize the detachable connection between the valve head (22) and the ejector cylinder (21).

3. The glue discharging device according to claim 2, characterized in that: The sleeve (24) is provided with a screw hole, the abutment member (241) is a bolt screwed with the sleeve (24) through the screw hole, the fixing column (23) is inserted into the sleeve (24), and the end of the bolt is screwed into the sleeve (24) through the screw hole and abuts against the annular groove (231) of the fixing column (23), so as to realize the detachable connection between the fixing column (23) and the sleeve (24).

4. The glue discharging device according to claim 1, characterized in that: The glue supply mechanism comprises a pressure barrel (1) for containing glue and a glue delivery assembly (3) connected to the pressure barrel (1); The glue delivery assembly (3) comprises a glue delivery pipe (31) inserted into the pressure barrel (1), a glue delivery pipe (32) connected to the glue delivery pipe (31), and a pipe joint (33) provided between the glue delivery pipe (31) and the glue delivery pipe (32); the glue delivery pipe (32) is connected to the glue injection hole (222).

5. The glue discharging device according to claim 4, characterized in that: The pipe joint (33) is provided with a plurality of rubber sealing rings (331).

6. The glue discharging device according to claim 4, characterized in that: The pressure barrel (1) comprises a barrel body (11) connected to an external gas circuit and a barrel cover (12); a hose seat (13) is provided on the surface of the barrel cover (12) for accommodating a rubber hose (31) to extend into the barrel body (11); a plurality of spring plungers (14) that can be retracted and deformed are provided on the inner wall of the hose seat (13); the pipe joint (33) is detachably connected to the hose seat (13); and an annular positioning groove (332) for accommodating the spring plunger (14) to engage is provided on the outer wall of the pipe joint (33).

7. The glue discharging device according to claim 6, characterized in that: The barrel body (11) and the barrel cover (12) are detachably connected.

8. The glue discharging device according to claim 1, characterized in that: The glue discharge head (223) is a tubular structure with an inner diameter gradually decreasing from the back to the front.

9. The glue discharging device according to claim 1, characterized in that: A fixing unit (4) for connecting to an external workpiece is provided on the outer surface of the ejector cylinder (21).

10. The glue discharging device according to claim 1, characterized in that: The positioning sleeve (224) and the valve head (22) are integrally formed.

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