Dispensing valve with parts easy to replace

Abstract

The utility model discloses a dispensing valve with parts easy to replace, which comprises a glue supply cylinder, a valve body positioned on one side of the glue supply cylinder and a glue inlet block mounted on the lower end face of the valve body, the lower end of the glue supply cylinder is connected with a glue supply block internally provided with a glue supply runner, and a connecting block internally provided with a communicating runner is mounted on the side end face of one end, facing the glue supply block, of the glue inlet block. The upper end of the vertical section of the glue supply runner is communicated with the glue outlet of the glue supply barrel, an elastic gasket is hermetically mounted on the glue supply block and located on the outer side of the horizontal section of the glue supply runner, a mounting hole communicated with the communicating runner is formed in the side end face, facing one end of the glue supply block, of the connecting block, and one end of a horizontally extending connecting needle is embedded into the mounting hole. According to the utility model, the glue supply cylinder and the glue valve can be quickly inserted and detached, so that the glue supply cylinder can be quickly replaced, and in the replacement process, not only can the quick communication of a glue flow channel between the valve body and the new glue supply cylinder be quickly realized, but also the situation of glue overflow can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing, in particular to a glue dispensing valve which is easy to replace parts. 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-type dispensing valves are often used for non-contact dispensing.

[0003] In the prior art, the jet dispensing valve integrates the glue cartridge for glue supply and the valve body for glue dispensing into an integrated structure. After the glue in the glue cartridge is used up, it needs to be manually disassembled and replaced. However, the manual operation is cumbersome and slow, and it cannot be quickly disassembled and installed, making it inconvenient to replace. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a dispensing valve with easy parts replacement. The dispensing valve with easy parts replacement realizes quick connection and disassembly between the glue supply cylinder and the glue valve so as to facilitate quick replacement of the glue supply cylinder. During the replacement process, the glue flow channel between the valve body and the new glue supply cylinder can be quickly connected, and the glue overflow can be effectively avoided.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a dispensing valve that is easy to replace parts, including: 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 is respectively provided with a glue feed flow channel and a glue outlet flow channel that are interconnected, the lower end of the glue supply cylinder is connected to a glue supply block with a glue supply flow channel therein, a connecting block with a connecting flow channel therein 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 glue supply flow channel is connected to the glue outlet of the glue supply cylinder. The horizontal section extends in a direction close to the connecting block at one end opposite to the vertical section, and an elastic gasket is sealed and installed on the outer side of the horizontal section of the glue supply channel on the glue supply block. A mounting hole connected to the connecting channel is provided on the side end surface of the connecting block facing one end of the glue supply block, and one end of a horizontally extending connecting needle is embedded and installed in the mounting hole. When the other end of the connecting needle passes through the elastic gasket and extends into the glue supply channel, the glue supply channel on the glue supply block and the mounting hole on the connecting block are connected via a transition channel provided on the connecting needle.

[0006] The further improved scheme in the above technical scheme is as follows:

[0007] 1. In the above solution, the connecting needle further includes a connecting portion threadedly connected to the inner wall of the mounting hole and a tapered portion that can pass through the elastic gasket, and the outer diameter of the tapered portion gradually decreases in a direction away from the connecting portion.

[0008] 2. In the above scheme, a mounting groove connected to the glue supply channel is provided on the side end surface of the glue supply block facing one end of the connecting block, and a pressing block is provided on the side of the elastic gasket embedded in the mounting groove opposite to the glue supply channel. The pressing block fixedly connected to the glue supply block is in compression contact with one side surface of the elastic gasket, so that the other side surface of the elastic gasket is in compression contact with the bottom surface of the mounting groove.

[0009] 3. In the above solution, the pressing block is provided with a through hole for the connecting needle to pass through.

[0010] 4. In the above solution, the valve body is an injection valve body.

[0011] 5. In the above solution, the valve body is a piezoelectric ceramic injection valve body.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] The utility model discloses a dispensing valve which is easy to replace parts, wherein 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 inlet block facing one end of the glue supply block, the upper end of the vertical section of the glue supply flow channel is connected with the glue outlet of the glue supply cylinder, 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, an elastic gasket is sealed and installed on the glue supply block and located on the outer side of the horizontal section of the glue supply flow channel, a mounting hole connected with the connecting flow channel is provided on the side end surface of the connecting block facing one end of the glue supply block, and one end of a horizontally extending connecting needle is embedded in It is installed in the mounting hole, and when the other end of the connecting needle passes through the elastic gasket and extends into the glue supply channel, the glue supply channel on the glue supply block is connected with the mounting hole on the connecting block through the transition channel opened on the connecting needle, thereby realizing quick connection and disassembly between the glue supply cylinder and the glue valve to facilitate 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 quick 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 effectively avoid the overflow of residual glue in the old glue supply cylinder when the valve body is separated from the old glue supply cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 This is a schematic diagram of the structure of the dispensing valve of the utility model which is easy to replace parts;

[0015] Attached Figure 2 For the utility model Figure 1 Schematic diagram of the cross section along AA;

[0016] Attached Figure 3 For the utility model Figure 2 The enlarged schematic diagram of point B in the middle;

[0017] Attached Figure 4 The utility model is a schematic diagram of the partial structure disassembly of the dispensing valve which is easy to replace parts.

[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; 10. Avoidance hole; 11. Sealing ring; 12. Glue supply cylinder; 121. Glue outlet; 13. Valve body; 14. Glue inlet block; 141. Glue inlet channel; 142. Glue outlet channel; 15. Connecting nozzle; 16. 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 dispensing valve that is easy to replace parts, comprising: a glue supply cylinder 12, a valve body 13 located on one side of the glue supply cylinder 12, and a glue feed block 14 installed on the lower end surface of the valve body 13, wherein the glue feed block 14 is respectively provided with a glue feed channel 141 and a glue outlet channel 142 that are connected to each other, wherein the lower end of the glue supply cylinder 12 is connected to a glue supply block 1 with a glue supply channel 3 therein, and a connecting block 2 with a connecting channel 4 therein is installed on the side end surface of the glue feed block 14 facing one end of the glue supply block 1, wherein the upper end of the vertical section 31 of the glue supply channel 3 is connected to the glue outlet 121 of the glue supply cylinder 12, and the horizontal section 32 of the glue supply channel 3 is connected to the glue outlet 121 of the glue supply cylinder 12. The end opposite to the vertical section 31 extends in the direction close to the connection block 2. An elastic gasket 5 is sealed and installed on the rubber supply block 1 and outside the horizontal section 32 of the rubber supply flow channel 3. The side end surface of the connection block 2 facing the rubber supply block 1 is provided with a mounting hole 6 connected to the communication flow channel 4. One end of a horizontally extending connection needle 7 is embedded and installed in the mounting hole 6. When the other end of the connection needle 7 passes through the elastic gasket 5 and extends into the rubber supply flow channel 3, the rubber supply flow channel 3 on the rubber supply block 1 is connected with the mounting hole 6 on the connection block 2 through the transition flow channel 71 provided on the connection needle 7.

[0021] 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 hole of the pressing block and passes through the elastic gasket to communicate with the glue supply channel, which simplifies the operation, enables quick disassembly and installation, and facilitates the replacement of the rubber cartridge.

[0022] The connecting needle 7 further comprises 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 , wherein the outer diameter of the tapered portion 73 gradually decreases in a direction away from the connecting portion 72 .

[0023] The side end surface of the above-mentioned glue supply block 1 facing the connecting block 2 is provided with a mounting groove 8 which is connected with 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.

[0024] The pressing block 9 is provided with a through hole 10 for the connecting needle 7 to pass through.

[0025] The valve body 13 is an injection valve body.

[0026] The glue outlet 121 at the lower end of the glue supply cylinder 12 is connected to the glue supply channel 3 on the glue supply block 1 through a connecting nozzle 15 .

[0027] An air inlet nozzle 16 is installed at the upper end of the glue supply cylinder 12 .

[0028] The elastic gasket 5 is a rubber gasket.

[0029] Embodiment 2: A dispensing valve that is easy to replace parts, comprising: a glue supply cylinder 12, a valve body 13 located on one side of the glue supply cylinder 12, and a glue feed block 14 installed on the lower end surface of the valve body 13, wherein the glue feed block 14 is respectively provided with a glue feed channel 141 and a glue outlet channel 142 that are connected to each other, wherein the lower end of the glue supply cylinder 12 is connected to a glue supply block 1 with a glue supply channel 3 therein, and a connecting block 2 with a connecting channel 4 therein is installed on the side end surface of the glue feed block 14 facing one end of the glue supply block 1, wherein the upper end of the vertical section 31 of the glue supply channel 3 is connected to the glue outlet port 121 of the glue supply cylinder 12, and the horizontal section 32 of the glue supply channel 3 is connected to the glue outlet port 121 of the glue supply cylinder 12. The end opposite to the vertical section 31 extends in the direction close to the connection block 2. An elastic gasket 5 is sealed and installed on the rubber supply block 1 and outside the horizontal section 32 of the rubber supply flow channel 3. The side end surface of the connection block 2 facing the rubber supply block 1 is provided with a mounting hole 6 connected to the communication flow channel 4. One end of a horizontally extending connection needle 7 is embedded and installed in the mounting hole 6. When the other end of the connection needle 7 passes through the elastic gasket 5 and extends into the rubber supply flow channel 3, the rubber supply flow channel 3 on the rubber supply block 1 is connected with the mounting hole 6 on the connection block 2 through the transition flow channel 71 provided on the connection needle 7.

[0030] When replacement is required, the glue supply cylinder and the glue supply block are removed from the opposite direction of the connecting block, and then the glue cylinder to be replaced is removed and replaced with a new one. At this time, the glue supply block is separated from the connecting block, and the connecting needle withdraws from the glue supply channel.

[0031] The connecting needle 7 further comprises 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 , wherein the outer diameter of the tapered portion 73 gradually decreases in a direction away from the connecting portion 72 .

[0032] The valve body 13 is a piezoelectric ceramic injection valve body.

[0033] The lower end of the obliquely arranged communicating flow channel 4 is communicated with an end of a horizontally extending glue inlet flow channel 141 on the glue inlet block 14 which is opposite to the glue outlet flow channel 142 .

[0034] A sealing ring 11 is disposed between the connection block 2 and the glue feeding block 14 and on the outer side of the connection between the communication channel 4 and the glue feeding channel 141 .

[0035] The mounting hole 6 is communicated with the upper end of the communication channel 4 .

[0036] The elastic gasket 5 is a silicone gasket.

[0037] The elastic gasket 5 is provided with a cross-line groove for the connecting needle 7 to pass through.

[0038] The working principle of the utility model is as follows:

[0039] When the glue in the glue supply cylinder is used up, the old glue supply cylinder is driven away from the valve body, so that the connecting needle installed on the valve body is pulled out from the glue supply flow channel on 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 due to the action of the elastic gasket;

[0040] 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 flow channel through the elastic gasket on the new glue supply cylinder, so as to realize the rapid connection between the internal glue flow channel of the glue supply block on the new glue supply cylinder and the glue feed block on the valve body.

[0041] When the above-mentioned dispensing valve with easy replacement of parts is used, it realizes the quick connection and disassembly between the glue supply cylinder and the glue valve to facilitate the rapid 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 avoid the overflow of residual glue in the old glue supply cylinder when the valve body is separated from the old glue supply cylinder.

[0042] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A dispensing valve with easy replacement of parts, comprising: A glue supply cylinder (12), a valve body (13) located on one side of the glue supply cylinder (12), and a glue feed block (14) installed on the lower end surface of the valve body (13), wherein the glue feed block (14) is respectively provided with a glue feed channel (141) and a glue outlet channel (142) which are interconnected, and wherein the glue supply cylinder (12) is connected to a glue supply block (1) having a glue supply channel (3) therein at the lower end thereof, a connecting block (2) having a connecting channel (4) therein is installed on the side end surface of the glue feed block (14) 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 (121) of the glue supply cylinder (12), and the horizontal section (32) of the glue supply channel (3) is opposite to the vertical section (31). One end of the connecting pin (31) extends in a direction close to the connecting block (2); an elastic gasket (5) is sealingly installed on the rubber supply block (1) and located outside the horizontal section (32) of the rubber supply flow channel (3); 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 rubber supply block (1); one end of a horizontally extending connecting pin (7) is embedded and installed in the mounting hole (6); when the other end of the connecting pin (7) passes through the elastic gasket (5) and extends into the rubber supply flow channel (3), the rubber supply flow channel (3) on the rubber supply block (1) and the mounting hole (6) on the connecting block (2) are connected via a transition flow channel (71) provided on the connecting pin (7).

2. The dispensing valve with easy replacement of parts according to claim 1 is characterized in that: The connecting needle (7) further comprises 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), wherein the outer diameter of the tapered portion (73) gradually decreases in a direction away from the connecting portion (72).

3. The dispensing valve with easy replacement of parts according to claim 1 is characterized in that: A mounting groove (8) communicating with the glue supply channel (3) is provided on a side end surface of the glue supply block (1) facing one end of the connection block (2); a pressing block (9) is provided on a side of the elastic gasket (5) embedded in the mounting groove (8) 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).

4. The dispensing valve with easy replacement of parts according to claim 3 is characterized in that: The pressing block (9) is provided with a through hole (10) for the connecting needle (7) to pass through.

5. The dispensing valve with easy replacement of parts according to claim 1 is characterized in that: The valve body (13) is an injection valve body.

6. The dispensing valve with easy replacement of parts according to claim 1 is characterized in that: The valve body (13) is a piezoelectric ceramic injection valve body.

Images