Two-component dispensing valve

Abstract

The utility model discloses a two-component dispensing valve which comprises a vertical base plate, a glue A valve body and a glue B valve body, the glue A valve body and the glue B valve body are respectively arranged on the surface of the same side of the vertical base plate, and glue outlets at the lower ends of the glue A valve body and the glue B valve body are connected through a flow guide block. A mounting base capable of moving in the vertical direction is arranged between the A glue valve body and the B glue valve body and located above the flow guide block, two clamping parts of a clamping jaw air cylinder mounted on the lower surface of the mounting base extend downwards, and a stop needle and a threaded pipe arranged on the outer side of the stop needle in a sleeving mode are coaxially arranged in the glue pipe. According to the utility model, automatic glue stopping and glue discharging can be realized, manual intervention is reduced, the automation degree and the glue dispensing efficiency of the glue dispensing system are improved, and static glue mixing, glue discharging and glue stopping are organically combined into a whole, so that the cost is saved, the occupied space is simplified, and the clamping jaw cylinder can conveniently clamp and move the stopping needle.

Description

Technical Field

[0001] The utility model relates to the technical field of dispensing, in particular to a two-component dispensing valve. Background Art

[0002] Dispensing is a process, also known as glue application, coating, potting, dropping, etc. It is to apply, pot, or drop electronic glue, oil, or other liquids onto products to make the products play roles such as adhesion, potting, insulation, fixation, and smooth surface.

[0003] When the two-component dispensing valve of the existing dispensing technology is in use, the cut-off needle and the glue outlet valve are usually two separate components. The stop glue needle needs to be inclined and installed on the glue outlet valve, which is not convenient for the cylinder to clamp the cut-off needle for movement, affecting the realization and efficiency of automatic glue stopping and glue discharging, and occupying a large space and having a high cost. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a two-component dispensing valve, which can realize automatic glue stopping and glue discharging, reduce manual intervention, and improve the automation degree of the dispensing system and the dispensing efficiency.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: a two-component dispensing valve, comprising: a vertical substrate and an A glue valve body and a B glue valve body respectively installed on the same side surface of the vertical substrate. The glue outlet ports at the lower ends of the A glue valve body and the B glue valve body are connected by a diversion block. A glue pipe communicating with the A glue diversion channel and the B glue diversion channel respectively opened on the diversion block is arranged below the diversion block and between the A glue valve body and the B glue valve body. The lower end of the vertically extending glue pipe is connected with a glue outlet nozzle. An installation seat movable in the vertical direction is arranged between the A glue valve body and the B glue valve body and above the diversion block. Two clamping parts of a clamping jaw cylinder installed on the lower surface of the installation seat extend downward. A cut-off needle and a threaded pipe sleeved outside the cut-off needle are coaxially arranged in the glue pipe. The lower end of the cut-off needle movable axially up and down is embedded and installed in the glue outlet nozzle at the lower end of the glue pipe. The upper end of the cut-off needle passes through the diversion block and extends between the two clamping parts of the clamping jaw cylinder. When the cut-off needle moves to the first position along with the two clamping parts of the clamping jaw cylinder, the lower end surface of the cut-off needle is in sealed contact with the upper end surface of the glue discharge channel in the glue outlet nozzle. When the cut-off needle moves upward to the second position along with the two clamping parts of the clamping jaw cylinder, a glue discharge gap is formed between the lower end surface of the cut-off needle and the upper end surface of the glue discharge channel in the glue outlet nozzle.

[0006] The further improved solutions in the above technical solutions are as follows:

[0007] 1. In the above solution, the jaw cylinder is installed on the lower surface of the horizontal part of the mounting seat. The upper surface of the horizontal part of the mounting seat is connected to the piston rod of a vertical cylinder. The vertical part of the mounting seat is movably installed on the vertical substrate.

[0008] 2. In the above solution, the vertical cylinder is installed on the upper end surface of the vertical substrate through a bracket.

[0009] 3. In the above solution, the vertical part of the mounting seat and the vertical substrate are connected by the cooperation of a slide rail and a slider.

[0010] 4. In the above solution, a number of tooth grooves are provided on the respective opposite surfaces of the two clamping parts of the jaw cylinder.

[0011] 5. In the above solution, a number of the tooth grooves extending in the horizontal direction are arranged at equal intervals in the vertical direction.

[0012] 6. In the above solution, a glue inlet seat is provided between the upper end of the rubber hose and the diversion block. The upper surface of the glue inlet seat is respectively provided with an A glue inlet hole communicating with the A glue diversion channel and a B glue inlet hole communicating with the B glue diversion channel. The lower ends of the inclined A glue inlet hole and B glue inlet hole are both communicated with the rubber hose.

[0013] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0014] The two-component dispensing valve of the present utility model is provided with a rubber tube below the diversion block and between the A glue valve body and the B glue valve body, which is respectively communicated with the A glue diversion channel and the B glue diversion channel opened on the diversion block. The lower end of the vertically extending rubber tube is connected with a glue outlet nozzle. Between the A glue valve body and the B glue valve body and above the diversion block, there is a mounting seat that can move in the vertical direction. Two clamping parts of a clamping jaw cylinder installed on the lower surface of the mounting seat extend downward. A cut-off needle and a threaded tube sleeved outside the cut-off needle are coaxially arranged in the rubber tube. The lower end of the cut-off needle that can move axially up and down is embedded and installed in the glue outlet nozzle at the lower end of the rubber tube. The upper end of the cut-off needle passes through the diversion block and extends between the two clamping parts of the clamping jaw cylinder. When the cut-off needle moves to the first position along with the two clamping parts of the clamping jaw cylinder, the lower end surface of the cut-off needle is in sealed contact with the upper end surface of the glue flow channel in the glue outlet nozzle. When the cut-off needle moves upward to the second position along with the two clamping parts of the clamping jaw cylinder, a glue outlet gap is formed between the lower end surface of the cut-off needle and the upper end surface of the glue flow channel in the glue outlet nozzle. By driving the clamping parts of the clamping jaw cylinder to clamp the cut-off needle to move up and down, automatic glue stopping and glue discharging can be realized, reducing manual intervention, improving the automation degree of the dispensing system and the dispensing efficiency. Then, static mixing, glue discharging and glue stopping are organically combined into one, which not only saves costs and streamlines the occupied space, but also facilitates the clamping and movement of the cut-off needle by the clamping jaw cylinder, further improving the overall automation degree and dispensing efficiency of the dispensing system. Description of the Drawings

[0015] Appendix Figure 1 is a schematic structural diagram of the two-component dispensing valve of the present utility model;

[0016] Appendix Figure 2 is a sectional structural diagram of the two-component dispensing valve of the present utility model;

[0017] Appendix Figure 3 is for the present utility model Appendix Figure 2 is an enlarged schematic diagram of part A in;

[0018] Appendix Figure 4 is for the present utility model Appendix Figure 2 is an enlarged schematic diagram of part B in;

[0019] Appendix Figure 5 is for the present utility model Appendix Figure 4 is an enlarged schematic diagram of part C in;

[0020] Appendix Figure 6 is a schematic diagram of the diversion channel of the two-component dispensing valve of the present utility model.

[0021] In the above drawings: 1. Rubber tube; 2. Glue inlet seat; 3. Glue outlet nozzle; 31. Glue outlet channel; 32. Glue outlet syringe; 41. A-glue inlet hole; 42. B-glue inlet hole; 5. Cut-off needle; 6. Threaded tube; 7. Plugging block; 8. Connector; 91. Annular groove; 92. Sealing ring; 11. A-glue valve body; 12. B-glue valve body; 13. Flow guiding block; 131. A-glue flow guiding channel; 132. B-glue flow guiding channel; 14. Vertical substrate; 15. Mounting seat; 151. Horizontal part; 152. Vertical part; 16. Claw cylinder; 161. Clamping part; 162. Tooth groove; 17. Vertical cylinder; 18. Bracket. Detailed implementation mode

[0022] The present patent can be further clearly understood through the following specific embodiments, but they do not limit the present patent.

[0023] Embodiment 1: A two-component dispensing valve, comprising: a vertical substrate 14 and an A-glue valve body 11 and a B-glue valve body 12 respectively installed on the same side surface of the vertical substrate 14. The glue outlet at the lower end of each of the A-glue valve body 11 and the B-glue valve body 12 is connected through a flow guiding block 13. Below the flow guiding block 13 and between the A-glue valve body 11 and the B-glue valve body 12, there is a rubber tube 1 communicated with the A-glue flow guiding channel 131 and the B-glue flow guiding channel 132 respectively opened on the flow guiding block 13. The lower end of the vertically extending rubber tube 1 is connected with a glue outlet nozzle 3. Between the A-glue valve body 11 and the B-glue valve body 12 and above the flow guiding block 13, there is a mounting seat 15 movable in the vertical direction. Two clamping parts 161 of a claw cylinder 16 installed on the lower surface of the mounting seat 15 extend downward. A cut-off needle 5 is coaxially arranged in the rubber tube 1 and a threaded tube 6 sleeved outside the cut-off needle 5. The lower end of the cut-off needle 5 movable axially up and down is embedded and installed in the glue outlet nozzle 3 at the lower end of the rubber tube 1. The upper end of the cut-off needle 5 passes through the flow guiding block 13 and extends between the two clamping parts 161 of the claw cylinder 16. When the cut-off needle 5 moves to the first position along with the two clamping parts 161 of the claw cylinder 16, the lower end surface thereof is in sealing contact with the upper end surface of the glue outlet channel 31 in the glue outlet nozzle 3. When the cut-off needle 5 moves upward to the second position along with the two clamping parts 161 of the claw cylinder 16, a glue outlet gap is formed between the lower end surface thereof and the upper end surface of the glue outlet channel 31 in the glue outlet nozzle 3;

[0024] When glue stopping is required, the clamping parts of the claw cylinder move relatively closer, so as to clamp the cut-off needle, and then the claw cylinder moves downward to drive the cut-off needle to move downward and contact the upper end surface of the glue outlet syringe, so as to realize automatic glue stopping;

[0025] When glue dispensing is required, the claw cylinder moves upward to drive the cut-off needle to move upward away from the glue outlet syringe, so as to realize automatic glue dispensing.

[0026] The above-mentioned clamping jaw cylinder 16 is installed on the lower surface of the horizontal part 151 of the mounting seat 15. The upper surface of the horizontal part 151 of the mounting seat 15 is connected to the piston rod of a vertical cylinder 17. The vertical part 152 of the mounting seat 15 is movably installed on the vertical substrate 14.

[0027] The above-mentioned vertical cylinder 17 is installed on the upper end surface of the vertical substrate 14 through a bracket 18.

[0028] Between the vertical part 152 of the above-mentioned mounting seat 15 and the vertical substrate 14, they are connected by the cooperation of a slide rail and a slider.

[0029] On the respective opposite surfaces of the two clamping parts 161 of the above-mentioned clamping jaw cylinder 16, a plurality of tooth grooves 162 are respectively provided.

[0030] The above-mentioned plurality of tooth grooves 162 extending in the horizontal direction are arranged at equal intervals in the vertical direction.

[0031] Between the upper end of the above-mentioned rubber hose 1 and the diversion block 13, a glue inlet seat 2 is provided. On the upper surface of the glue inlet seat 2, a glue A inlet hole 41 communicating with the glue A diversion channel 131 and a glue B inlet hole 42 communicating with the glue B diversion channel 132 are respectively provided. The lower ends of the inclined glue A inlet hole 41 and glue B inlet hole 42 are both connected to the rubber hose 1.

[0032] Embodiment 2: A two-component dispensing valve, comprising: a vertical substrate 14, and a glue A valve body 11 and a glue B valve body 12 respectively installed on the same side surface of the vertical substrate 14. The glue outlet at the lower end of each of the glue A valve body 11 and the glue B valve body 12 is connected through a diversion block 13. Below the diversion block 13 and between the glue A valve body 11 and the glue B valve body 12, a rubber hose 1 communicating with the glue A diversion channel 131 and the glue B diversion channel 132 respectively provided on the diversion block 13 is provided. The lower end of the vertically extending rubber hose 1 is connected with a dispensing nozzle 3. Between the glue A valve body 11 and the glue B valve body 12 and above the diversion block 13, a mounting seat 15 movable in the vertical direction is provided. The two clamping parts 161 of a clamping jaw cylinder 16 installed on the lower surface of the mounting seat 15 extend downward. A cut-off needle 5 is coaxially arranged in the rubber hose 1, and a threaded tube 6 sleeved outside the cut-off needle 5 is provided. The lower end of the cut-off needle 5 movable axially up and down is embedded and installed in the dispensing nozzle 3 at the lower end of the rubber hose 1. The upper end of the cut-off needle 5 passes through the diversion block 13 and extends between the two clamping parts 161 of the clamping jaw cylinder 16. When the cut-off needle 5 moves to the first position along with the two clamping parts 161 of the clamping jaw cylinder 16, its lower end surface is in sealing contact with the upper end surface of the glue flow channel 31 in the dispensing nozzle 3. When the cut-off needle 5 moves upward to the second position along with the two clamping parts 161 of the clamping jaw cylinder 16, a glue outlet gap is formed between its lower end surface and the upper end surface of the glue flow channel 31 in the dispensing nozzle 3.

[0033] During use, the A glue inlet hole is communicated with the A glue inlet valve, and the B glue inlet hole is communicated with the B glue inlet valve;

[0034] After the A glue and the B glue respectively pass through the corresponding inlet holes, they both enter the glue pipe. After static mixing in the threaded pipe inside the glue pipe, they enter the glue outlet nozzle. Finally, the mixed glue liquid is output outward from the glue outlet channel on the glue outlet nozzle to achieve the glue dispensing operation.

[0035] The above-mentioned clamping jaw cylinder 16 is installed on the lower surface of the horizontal part 151 of the mounting seat 15. The upper surface of the horizontal part 151 of the mounting seat 15 is connected to the piston rod of a vertical cylinder 17. The vertical part 152 of the mounting seat 15 is movably installed on the vertical substrate 14.

[0036] On the respective opposite surfaces of the two clamping parts 161 of the above-mentioned clamping jaw cylinder 16, a plurality of tooth grooves 162 are respectively provided.

[0037] Between the upper end of the above-mentioned glue pipe 1 and the diversion block 13, a glue inlet seat 2 is provided. On the upper surface of the glue inlet seat 2, an A glue inlet hole 41 communicated with the A glue diversion channel 131 and a B glue inlet hole 42 communicated with the B glue diversion channel 132 are respectively provided. The lower ends of the inclined A glue inlet hole 41 and B glue inlet hole 42 are both communicated with the glue pipe 1.

[0038] The lower part of the above-mentioned glue inlet seat 2 is sleeved on the glue pipe 1 and is connected to the outer wall of the glue pipe 1 by threads.

[0039] Above the above-mentioned glue pipe 1, a blocking block 7 is provided, and the blocking block 7 is embedded and installed in the glue inlet seat 2.

[0040] The upper end of the above-mentioned threaded pipe 6 is installed on the blocking block 7 through a connector 8.

[0041] The upper end of the above-mentioned connector 8 is embedded and installed in the blocking block 7.

[0042] The upper part of the above-mentioned glue outlet nozzle 3 is sleeved on the outside of the lower end of the glue pipe 1.

[0043] An outlet needle tube 32 is installed on the outlet channel 31 provided at the lower part of the above-mentioned glue outlet nozzle 3. The upper end surface of the outlet needle tube 32 with the upper end embedded in the outlet channel 31 is lower than the upper end surface of the outlet channel 31.

[0044] The above-mentioned A glue inlet hole 41 and B glue inlet hole 42 are symmetrically arranged on both sides of the cut-off needle 5.

[0045] On the upper surface of the above-mentioned glue inlet seat 2 and on the outer sides of the circumferences of the A glue inlet hole 41 and B glue inlet hole 42, an annular groove 91 is respectively installed, and a sealing ring 92 is embedded in each annular groove 91.

[0046] The working principle of the present utility model is as follows:

[0047] During use, the A glue inlet hole is communicated with the A glue inlet valve, and the B glue inlet hole is communicated with the B glue inlet valve;

[0048] Both the A glue and the B glue enter the glue pipe after passing through the corresponding inlet holes, and after static mixing in the internal threaded pipe of the glue pipe, they enter the glue outlet nozzle. Finally, the mixed glue liquid is output outward through the glue outlet channel on the glue outlet nozzle to realize the dispensing operation;

[0049] When glue stopping is required, the clamping part of the jaw cylinder moves relatively closer, thereby clamping the cut-off needle. Then, by moving the jaw cylinder downward, the cut-off needle is driven to move downward to contact the upper end face of the glue outlet needle tube, thereby realizing automatic glue stopping;

[0050] When glue discharging is required, the jaw cylinder moves upward, driving the cut-off needle to move upward away from the glue outlet needle tube, thereby realizing automatic glue discharging.

[0051] When the above two-component dispensing valve is adopted, its clamping part is driven by the jaw cylinder to clamp the cut-off needle for up and down movement, which can realize automatic glue stopping and discharging, reduce manual intervention, improve the automation degree of the dispensing system and the dispensing efficiency. Moreover, by integrating static glue mixing, glue discharging and glue stopping organically, it not only saves costs and streamlines the occupied space, but also facilitates the clamping and movement of the cut-off needle by the jaw cylinder, further improving the overall automation degree and dispensing efficiency of the dispensing system.

[0052] The above embodiments are only used to illustrate the technical concept and characteristics of the present utility model, and their purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it accordingly, and it cannot be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A two-component dispensing valve, comprising: A vertical substrate (14) and an A glue valve body (11) and a B glue valve body (12) respectively mounted on the same side surface of the vertical substrate (14), wherein the glue outlets at the lower ends of the A glue valve body (11) and the B glue valve body (12) are connected via a guide block (13), and the invention is characterized in that: a rubber hose (1) is provided below the guide block (13) and between the A glue valve body (11) and the B glue valve body (12), and is respectively connected to the A glue guide channel (131) and the B glue guide channel (132) provided on the guide block (13); a glue outlet nozzle (3) is connected to the lower end of the vertically extending rubber hose (1); a mounting seat (15) movable in the vertical direction is provided between the A glue valve body (11) and the B glue valve body (12) and above the guide block (13); and a clamping cylinder (16) mounted on the lower surface of the mounting seat (15) has two A clamping portion (161) extends downward, a stop needle (5) and a threaded tube (6) mounted on the outside of the stop needle (5) are coaxially arranged in the rubber hose (1), the lower end of the stop needle (5) being movable up and down along the axial direction is embedded in the glue outlet nozzle (3) mounted at the lower end of the rubber hose (1), the upper end of the stop needle (5) passes through the guide block (13) and extends between the two clamping portions (161) of the clamping claw cylinder (16), when the stop needle (5) moves to a first position along with the two clamping portions (161) of the clamping claw cylinder (16), its lower end surface is in sealing contact with the upper end surface of the glue outlet channel (31) in the glue outlet nozzle (3), and when the stop needle (5) moves upward to a second position along with the two clamping portions (161) of the clamping claw cylinder (16), a glue outlet gap is formed between its lower end surface and the upper end surface of the glue outlet channel (31) in the glue outlet nozzle (3).

2. The two-component dispensing valve according to claim 1, characterized in that: The clamping jaw cylinder (16) is mounted on the lower surface of the horizontal portion (151) of the mounting seat (15); the upper surface of the horizontal portion (151) of the mounting seat (15) is connected to the piston rod of a vertical cylinder (17); and the vertical portion (152) of the mounting seat (15) is movably mounted on the vertical base plate (14).

3. The two-component dispensing valve according to claim 2, characterized in that: The vertical cylinder (17) is mounted on the upper end surface of the vertical base plate (14) via a bracket (18).

4. The two-component dispensing valve according to claim 2, characterized in that: The vertical portion (152) of the mounting seat (15) and the vertical base plate (14) are connected via a slide rail and a sliding block.

5. The two-component dispensing valve according to claim 1, characterized in that: A plurality of tooth grooves (162) are provided on respective opposing surfaces of the two clamping parts (161) of the clamping claw cylinder (16).

6. The two-component dispensing valve according to claim 5, characterized in that: A plurality of tooth grooves (162) extending in the horizontal direction are arranged at equal intervals in the vertical direction.

7. The two-component dispensing valve according to claim 1, characterized in that: A glue inlet seat (2) is arranged between the upper end of the rubber tube (1) and the guide block (13); an A glue inlet hole (41) communicating with the A glue guide channel (131) and a B glue inlet hole (42) communicating with the B glue guide channel (132) are respectively provided on the upper surface of the glue inlet seat (2); the lower ends of the A glue inlet hole (41) and the B glue inlet hole (42) arranged obliquely are both communicated with the rubber tube (1).

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