Detachable dispensing mechanism

Abstract

The detachable dispensing mechanism comprises a glue supply barrel and a glue inlet block installed on the lower end face of a valve body, the lower end of the glue supply barrel is connected with a glue supply block internally provided with a glue supply runner, a connecting block internally provided with a communicating runner is installed on the side end face of the end, facing the glue supply block, of the glue inlet block, and an elastic gasket is installed on the glue supply block in a sealed mode; a mounting hole communicated with the communicating runner is formed in the side end face of the end, facing the glue supply block, of the connecting block, a runner hole is formed in the end face of the end, located in the mounting hole, of a connecting needle, a transition runner is formed between the other end of the connecting needle and the runner hole, and a nut is installed at the end, opposite to the transition runner, of the runner hole; a spring is horizontally arranged between the end face of the nut and a ball arranged in the conical through hole. According to the glue supply device, rapid communication of the glue liquid flow channel can be achieved, glue liquid can be effectively prevented from overflowing, the stability and consistency of the glue liquid before and after the glue supply barrel is replaced can be kept, and the consistency of the glue dispensing quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of glue dispensing, and in particular to a detachable glue dispensing mechanism. Background Art

[0002] Dispensing technology is divided into traditional contact dispensing and non-contact dispensing. Non-contact dispensing has a certain spray height, which is conducive to adapting to the shape of the workpiece. Jet dispensing mechanism is often used for non-contact dispensing.

[0003] In the prior art, the glue dispensing mechanism integrates the glue cylinder for supplying glue and the valve body for dispensing glue into an integrated structure. When the glue in the glue cylinder is used up, it needs to be manually disassembled and replaced. However, the manual operation is cumbersome and slow, and it cannot be disassembled and installed quickly, making it inconvenient to replace. During installation, the glue is likely to overflow, affecting the quality and efficiency of glue dispensing. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a detachable dispensing mechanism, which realizes the rapid connection and disassembly between the glue supply cylinder and the glue valve to facilitate the rapid replacement of the glue supply cylinder, and can quickly realize the rapid connection between the glue supply block on the valve body and the glue flow channel inside the glue supply block on the new glue supply cylinder, and can effectively avoid the overflow of glue, and can also maintain the stability and consistency of the glue in the glue outlet channel before and after the replacement of the glue supply cylinder, thereby ensuring the consistency of the dispensing quality.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a detachable glue dispensing mechanism, comprising: a glue supply cylinder, a valve body located on one side of the glue supply cylinder, and a glue feed block installed on the lower end surface of the valve body, the glue feed block respectively provided with a glue feed flow channel and a glue discharge flow channel that are interconnected, the lower end of the glue supply cylinder is connected to a glue supply block provided with a glue supply flow channel, a connecting block provided with a connecting flow channel is installed on the side end surface of the glue supply block facing one end of the glue supply block, the upper end of the vertical section of the glue supply flow channel is connected to the glue outlet of the glue supply cylinder, and the horizontal section of the glue supply flow channel extends in a direction close to the connecting block opposite to one end of the vertical section; The cam is secured to the outer wall of the block and has a camming element which allows it to be inserted into the camming element and into the outer wall of the block, the cam being secured to the outer wall of the block and having a camming element which is adapted to engage the camming element.

[0006] The further improved scheme in the above technical scheme is as follows: 1. In the above solution, the glue supply cylinder is embedded in a support seat, a first magnet is installed on the side of the support seat facing the valve body, and a second magnet that cooperates with the first magnet is installed on the side of a fixed block installed on the valve body facing the support seat. When the connecting needle is extended into the glue supply channel, the first magnet and the second magnet are attracted and fixed.

[0007] 2. In the above solution, the first magnet and the second magnet are both strong magnets or electromagnets.

[0008] 3. In the above solution, the first magnet and the second magnet are respectively embedded in the receiving grooves provided on the support base and the fixing block.

[0009] 4. In the above solution, the glue supply block is integrally formed at the lower part of the support seat.

[0010] 5. In the above solution, the nut with external threads is connected to the inner wall of the flow channel hole through threads.

[0011] 6. In the above solution, the sphere is a ceramic sphere.

[0012] 7. In the above solution, the elastic gasket is a rubber gasket or a silicone gasket.

[0013] 8. In the above solution, the elastic gasket is provided with a cross-line groove for the connecting needle to pass through.

[0014] 9. In the above solution, the glue outlet at the lower end of the glue supply cylinder is connected to the glue supply channel on the glue supply block through a connecting nozzle.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The detachable glue dispensing mechanism of the present invention has an elastic gasket sealed on the glue supply block and located on the outside of the horizontal section of the glue supply flow channel. A mounting hole connected to the connecting flow channel is provided on the side end surface of the connecting block facing one end of the glue supply block. One end of a connecting needle is embedded in the mounting hole and a flow channel hole is provided on the end surface of the connecting needle located in the mounting hole. A transition flow channel with an inner diameter smaller than the inner diameter of the flow channel hole is provided between the other end of the connecting needle and the flow channel hole. The transition flow channel and the flow channel hole are connected through a tapered through hole. A nut with a central through hole is installed on the end of the flow channel hole opposite to the transition flow channel. A spring in an extrusion state is horizontally provided between the end surface of the nut and a sphere provided in the tapered through hole, so that the sphere with a diameter larger than the inner diameter of the transition flow channel can be pressed against the inner wall of the tapered through hole. When the end of the connecting needle away from the mounting hole passes through the elastic gasket, one end of the transition flow channel is connected with the glue supply flow channel on the glue supply block, which realizes the quick connection and disassembly between the glue supply cylinder and the glue valve so as to facilitate the quick replacement of the glue supply cylinder. In the process of plugging and pulling out the connecting needle for replacing the glue supply cylinder, the glue supply block on the valve body and the glue flow channel inside the glue supply block on the new glue supply cylinder can be quickly connected, and the residual glue in the old glue supply cylinder can be effectively avoided from overflowing when the valve body is separated from the old glue supply cylinder. The flow channel in the glue supply block on the valve body can also be quickly cut off when the valve body is separated from the old glue supply cylinder, thereby avoiding the overflow of the glue in the glue supply block and maintaining the stability and consistency of the glue in the glue discharge flow channel before and after replacing the glue supply cylinder, thereby ensuring the consistency of the dispensing quality.

[0016] 2. The detachable glue dispensing mechanism of the present invention has a glue supply cylinder embedded in a support seat, and a first magnet is installed on the side of the support seat facing the valve body, and a second magnet is installed on the side of a fixed block installed on the valve body facing the support seat, which cooperates with the first magnet. When the connecting needle is inserted into the glue supply channel, the first magnet and the second magnet are attracted and fixed, which facilitates the disassembly and replacement of the glue supply cylinder connected to the valve body, and realizes a quick connection between the valve body and the glue supply cylinder with good connection stability, thereby improving the stability of the glue supply from the glue supply cylinder to the valve body and the glue dispensing of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attachment Figure 1 This is a schematic diagram of the overall structure of the detachable dispensing mechanism of the present invention; Attachment Figure 2 Schematic diagram of the overall cross section of the detachable dispensing mechanism of the present invention; Attachment Figure 3 The present invention is attached Figure 2 An enlarged schematic diagram of point A; Attachment Figure 4 The present invention is attached Figure 3 An enlarged schematic diagram of point C; Attachment Figure 5 The present invention is attached Figure 2 An enlarged schematic diagram of point D; Attachment Figure 6 It is a schematic diagram of the partial structure disassembly of the detachable dispensing mechanism of the present invention.

[0018] In the above drawings: 1. Glue supply block; 2. Connecting block; 3. Glue supply channel; 31. Vertical section; 32. Horizontal section; 4. Connecting channel; 5. Elastic gasket; 6. Mounting hole; 7. Connecting needle; 71. Transition channel; 72. Connecting part; 73. Conical part; 8. Mounting groove; 9. Pressing block; 91. Avoidance hole; 10. Channel hole; 11. Conical through hole; 12. Nut; 121. Central through hole; 13. Sphere; 14. Spring; 15. Support seat; 16. Fixed block; 17. First magnet; 18. Second magnet; 19. Accommodating groove; 21. Glue supply cylinder; 211. Glue outlet; 22. Valve body; 23. Glue feed block; 231. Glue feed channel; 232. Glue outlet channel; 24. Connecting nozzle; 25. Air inlet nozzle. DETAILED DESCRIPTION

[0019] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0020] Embodiment 1: A detachable glue dispensing mechanism, comprising: a glue supply cylinder 21, a valve body 22 located on one side of the glue supply cylinder 21, and a glue feed block 23 installed on the lower end surface of the valve body 22, wherein the glue feed block 23 is respectively provided with a glue feed channel 231 and a glue outlet channel 232 that are interconnected, the lower end of the glue supply cylinder 21 is connected to a glue supply block 1 having a glue supply channel 3 therein, a connecting block 2 having a connecting channel 4 therein is installed on the side end surface of the glue supply block 23 facing the glue supply block 1, the upper end of the vertical section 31 of the glue supply channel 3 is connected to the glue outlet port 211 of the glue supply cylinder 21, and the horizontal section 32 of the glue supply channel 3 extends in a direction close to the connecting block 2, opposite to one end of the vertical section 31; An elastic gasket 5 is sealed and installed on the outside of the horizontal section 32 of the glue supply channel 3 on the glue supply block 1. A mounting hole 6 connected to the connecting flow channel 4 is provided on the side end surface of the connecting block 2 facing the glue supply block 1. One end of a connecting needle 7 is embedded in the mounting hole 6 and a flow channel hole 10 is provided on the end surface of the connecting needle 7 located in the mounting hole 6. A transition flow channel 71 with an inner diameter smaller than that of the flow channel hole 10 is provided between the other end of the connecting needle 7 and the flow channel hole 10. A cone is formed between the transition flow channel 71 and the flow channel hole 10. The transition channel 71 is connected to the conical through hole 11. A nut 12 with a central through hole 121 is installed at the end of the flow channel hole 10 opposite to the transition channel 71. A spring 14 in a compression state is horizontally arranged between the end surface of the nut 12 and a ball 13 arranged in the conical through hole 11, so that the ball 13, whose diameter is larger than the inner diameter of the transition channel 71, can be squeezed into contact with the inner wall of the conical through hole 11. When the end of the connecting needle 7 away from the mounting hole 6 passes through the elastic gasket 5, one end of the transition channel 71 is connected to the glue supply channel 3 on the glue supply block 1; When installation is required, the connecting needle is installed in the mounting hole of the connecting block, and then the tapered part of the connecting needle is aligned with the avoidance through hole of the pressure block and passes through the elastic gasket to connect with the glue supply channel. During this process, the sphere in the tapered through hole is squeezed and contacted with the inner wall of the tapered through hole under the extrusion of the spring, which can achieve rapid disassembly and positioning installation, facilitate replacement, and prevent glue from entering the flow channel hole, thereby avoiding glue overflow during installation.

[0021] The nut 12 with external threads is connected to the inner wall of the flow channel hole 10 through threads.

[0022] The sphere 13 is a ceramic sphere.

[0023] The elastic gasket 5 is a rubber gasket.

[0024] The elastic gasket 5 is provided with a cross-line groove for the connecting needle 7 to pass through.

[0025] The glue outlet 211 at the lower end of the glue supply cylinder 21 is connected to the glue supply channel 3 on the glue supply block 1 through a connecting nozzle 24 .

[0026] The valve body 22 is an injection valve body.

[0027] An air inlet nozzle 25 is installed at the upper end of the glue supply cylinder 21 .

[0028] The lower end of the obliquely arranged communicating channel 4 is communicated with an end of the horizontally extending glue inlet channel 231 on the glue inlet block 23 , which is opposite to the glue outlet channel 232 .

[0029] A sealing ring is provided between the connection block 2 and the glue feeding block 23 and on the outside of the connection between the communication channel 4 and the glue feeding channel 231 .

[0030] The mounting hole 6 is communicated with the upper end of the communication channel 4 .

[0031] The connecting needle 7 further includes a connecting portion 72 threadedly connected to the inner wall of the mounting hole 6 and a tapered portion 73 capable of passing through the elastic gasket 5 . The outer diameter of the tapered portion 73 gradually decreases in a direction away from the connecting portion 72 .

[0032] The above-mentioned glue supply block 1 is provided with a mounting groove 8 on the side end surface facing one end of the connecting block 2, which is connected to the glue supply channel 3. The elastic gasket 5 embedded in the mounting groove 8 is provided with a pressing block 9 on the side opposite to the glue supply channel 3. The pressing block 9 fixedly connected to the glue supply block 1 is in compression contact with one side surface of the elastic gasket 5, so that the other side surface of the elastic gasket 5 is in compression contact with the bottom surface of the mounting groove 8.

[0033] The pressing block 9 is provided with a through hole 91 for the connecting needle 7 to pass through.

[0034] Embodiment 2: A detachable glue dispensing mechanism, comprising: a glue supply cylinder 21, a valve body 22 located on one side of the glue supply cylinder 21, and a glue feed block 23 installed on the lower end surface of the valve body 22, wherein the glue feed block 23 is respectively provided with a glue feed channel 231 and a glue outlet channel 232 that are interconnected, the lower end of the glue supply cylinder 21 is connected to a glue supply block 1 having a glue supply channel 3 therein, a connecting block 2 having a connecting channel 4 therein is installed on the side end surface of the glue supply block 23 facing the glue supply block 1, the upper end of the vertical section 31 of the glue supply channel 3 is connected to the glue outlet port 211 of the glue supply cylinder 21, and the horizontal section 32 of the glue supply channel 3 extends in a direction close to the connecting block 2 opposite to one end of the vertical section 31; An elastic gasket 5 is sealed and installed on the outside of the horizontal section 32 of the glue supply channel 3 on the glue supply block 1. A mounting hole 6 connected to the connecting flow channel 4 is provided on the side end surface of the connecting block 2 facing the glue supply block 1. One end of a connecting needle 7 is embedded in the mounting hole 6 and a flow channel hole 10 is provided on the end surface of the connecting needle 7 located in the mounting hole 6. A transition flow channel 71 with an inner diameter smaller than that of the flow channel hole 10 is provided between the other end of the connecting needle 7 and the flow channel hole 10. A cone is formed between the transition flow channel 71 and the flow channel hole 10. The transition channel 71 is connected to the conical through hole 11. A nut 12 with a central through hole 121 is installed at the end of the flow channel hole 10 opposite to the transition channel 71. A spring 14 in a compression state is horizontally arranged between the end surface of the nut 12 and a ball 13 arranged in the conical through hole 11, so that the ball 13, whose diameter is larger than the inner diameter of the transition channel 71, can be squeezed into contact with the inner wall of the conical through hole 11. When the end of the connecting needle 7 away from the mounting hole 6 passes through the elastic gasket 5, one end of the transition channel 71 is connected to the glue supply channel 3 on the glue supply block 1; When replacement is required, remove the glue supply cylinder and the glue supply block from the opposite direction of the connecting block, then remove the glue cylinder that needs to be replaced and replace it with a new one to replenish the glue liquid. At this time, the glue supply block is separated from the connecting block, and the connecting needle exits the glue supply channel.

[0035] The glue supply cylinder 21 is embedded in a support seat 15. A first magnet 17 is installed on the side of the support seat 15 facing the valve body 22. A second magnet 18 that cooperates with the first magnet 17 is installed on the side of a fixing block 16 installed on the valve body 22 facing the support seat 15. When the connecting needle 7 is inserted into the glue supply channel 3, the first magnet 17 and the second magnet 18 are attracted and fixed. When the transition channel is connected to the glue supply channel, the first magnet on the support seat and the second magnet on the fixed block are attracted and fixed, so that the glue cylinder can be quickly disassembled and fixedly installed.

[0036] The first magnet 17 and the second magnet 18 are both strong magnets.

[0037] The first magnet 17 and the second magnet 18 are respectively embedded in the receiving grooves 19 provided on the support base 15 and the fixing block 16 .

[0038] The glue supply block 1 is integrally formed at the lower portion of the support base 15 .

[0039] The elastic gasket 5 is a silicone gasket.

[0040] The valve body 22 is a piezoelectric ceramic injection valve body.

[0041] An air inlet nozzle 25 is installed at the upper end of the glue supply cylinder 21 .

[0042] The lower end of the obliquely arranged communicating channel 4 is communicated with an end of the horizontally extending glue inlet channel 231 on the glue inlet block 23 , which is opposite to the glue outlet channel 232 .

[0043] The connecting needle 7 further includes a connecting portion 72 threadedly connected to the inner wall of the mounting hole 6 and a tapered portion 73 capable of passing through the elastic gasket 5 . The outer diameter of the tapered portion 73 gradually decreases in a direction away from the connecting portion 72 .

[0044] The above-mentioned glue supply block 1 is provided with a mounting groove 8 on the side end surface facing one end of the connecting block 2, which is connected to the glue supply channel 3. The elastic gasket 5 embedded in the mounting groove 8 is provided with a pressing block 9 on the side opposite to the glue supply channel 3. The pressing block 9 fixedly connected to the glue supply block 1 is in compression contact with one side surface of the elastic gasket 5, so that the other side surface of the elastic gasket 5 is in compression contact with the bottom surface of the mounting groove 8.

[0045] The working principle of the present invention is as follows: When the glue in the glue supply cylinder is used up, the old glue supply cylinder is driven away from the valve body, thereby pulling out the connecting needle installed on the valve body from the glue supply flow channel of the glue supply block installed on the old glue supply cylinder. At this time, the glue remaining in the glue supply flow channel will not overflow under the action of the elastic gasket, and the sphere in the tapered through-hole, which is no longer subjected to the pressure from the glue liquid, will be squeezed into contact with the inner wall of the tapered through-hole under the action of the spring to achieve rapid sealing of the flow channel in the glue supply block, thereby preventing the glue in the glue supply block from overflowing and maintaining the stability and consistency of the glue in the glue discharge flow channel before and after the glue supply cylinder is replaced, thereby ensuring the consistency of the dispensing quality. Afterwards, the valve body is driven close to the new glue supply cylinder and the connecting needle on it is inserted into the glue supply channel through the elastic gasket on the new glue supply cylinder. At the same time, the second magnet installed on the valve body is attracted and fixed with the first magnet installed on the glue supply cylinder, realizing a fast connection between the valve body and the glue supply cylinder with good connection stability, thereby improving the stability of glue supply from the glue supply cylinder to the valve body and glue dispensing on the valve body; Then, the glue in the new glue supply cylinder flows toward the glue outlet flow channel, and the ball in the tapered through hole moves under the glue pressure and squeezes the spring, thereby forming a glue outlet gap between the ball and the inner wall of the tapered through hole, realizing rapid connection between the glue supply block on the new glue supply cylinder and the internal glue flow channel of the glue inlet block on the valve body.

[0046] When the above-mentioned detachable glue dispensing mechanism is adopted, it realizes the quick plugging and disassembly between the glue supply cylinder and the glue valve so as to facilitate the quick replacement of the glue supply cylinder. In the process of plugging and pulling out the connecting needle when replacing the glue supply cylinder, it can quickly realize the rapid connection between the glue supply block on the valve body and the glue flow channel inside the glue supply block on the new glue supply cylinder, and can effectively prevent the residual glue in the old glue supply cylinder from overflowing when the valve body is separated from the old glue supply cylinder. The flow channel in the glue supply block on the valve body can also be quickly cut off when the valve body is separated from the old glue supply cylinder, thereby preventing the glue in the glue supply block from overflowing and maintaining the stability and consistency of the glue in the glue flow channel before and after replacing the glue supply cylinder, thereby ensuring the consistency of glue dispensing quality. In addition, while facilitating the disassembly and replacement of the glue supply cylinder connected to the valve body, a quick connection between the valve body and the glue supply cylinder is achieved with good connection stability, thereby improving the stability of the glue supply cylinder supplying glue to the valve body and the glue dispensing of the valve body.

[0047] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A detachable dispensing mechanism, comprising: A glue supply cylinder (21), a valve body (22) located on one side of the glue supply cylinder (21), and a glue feed block (23) installed on the lower end surface of the valve body (22), wherein the glue feed block (23) is respectively provided with a glue feed flow channel (231) and a glue outlet flow channel (232) that are interconnected, and characterized in that: the lower end of the glue supply cylinder (21) is connected to a glue supply block (1) provided with a glue supply flow channel (3), a connecting block (2) provided with a connecting flow channel (4) is installed on the side end surface of the glue supply block (23) facing one end of the glue supply block (1), the upper end of the vertical section (31) of the glue supply flow channel (3) is connected to the glue outlet (211) of the glue supply cylinder (21), and the horizontal section (32) of the glue supply flow channel (3) extends in a direction close to the connecting block (2) opposite to one end of the vertical section (31); An elastic gasket (5) is sealed and installed on the outside of the horizontal section (32) of the glue supply flow channel (3) on the glue supply block (1). A mounting hole (6) communicating with the connecting flow channel (4) is provided on the side end surface of the connecting block (2) facing the glue supply block (1). One end of a connecting needle (7) is embedded in the mounting hole (6) and a flow channel hole (10) is provided on the end surface of the connecting needle (7) located in the mounting hole (6). A transition flow channel (71) with an inner diameter smaller than the inner diameter of the flow channel hole (10) is provided between the other end of the connecting needle (7) and the flow channel hole (10). A The conical through hole (11) is connected, and a nut (12) with a central through hole (121) is installed at one end of the flow channel hole (10) opposite to the transition flow channel (71). A spring (14) in an extrusion state is horizontally arranged between the end face of the nut (12) and a sphere (13) arranged in the conical through hole (11), so that the sphere (13) with a diameter larger than the inner diameter of the transition flow channel (71) can be squeezed and contacted with the inner wall of the conical through hole (11). When the end of the connecting needle (7) away from the mounting hole (6) passes through the elastic gasket (5), one end of the transition flow channel (71) is connected to the glue supply flow channel (3) on the glue supply block (1).

2. The detachable dispensing mechanism according to claim 1, characterized in that: The glue supply cylinder (21) is embedded in a support seat (15), and a first magnet (17) is installed on the side of the support seat (15) facing the valve body (22). A second magnet (18) that cooperates with the first magnet (17) is installed on the side of a fixed block (16) installed on the valve body (22) facing the support seat (15). When the connecting needle (7) extends into the glue supply channel (3), the first magnet (17) and the second magnet (18) are attracted and fixed.

3. The detachable dispensing mechanism according to claim 2, characterized in that: The first magnet (17) and the second magnet (18) are both strong magnets or electromagnets.

4. The detachable dispensing mechanism according to claim 2, characterized in that: The first magnet (17) and the second magnet (18) are respectively embedded in the accommodating grooves (19) provided on the support seat (15) and the fixing block (16).

5. The detachable dispensing mechanism according to claim 2, characterized in that: The glue supply block (1) is integrally formed at the lower portion of the support seat (15).

6. The detachable dispensing mechanism according to claim 1, characterized in that: The nut (12) having an external thread is connected to the inner wall of the flow channel hole (10) via a thread.

7. The detachable dispensing mechanism according to claim 1, characterized in that: The sphere (13) is a ceramic sphere.

8. The detachable dispensing mechanism according to claim 1, characterized in that: The elastic gasket (5) is a rubber gasket or a silicone gasket.

9. The detachable dispensing mechanism according to claim 1, characterized in that: The elastic gasket (5) is provided with a cross-line groove for the connecting needle (7) to pass through.

10. The detachable dispensing mechanism according to claim 1, characterized in that: The glue outlet (211) at the lower end of the glue supply cylinder (21) is connected to the glue supply channel (3) on the glue supply block (1) via a connecting nozzle (24).

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