Self-sealing quick-change feeding module for vacuum glue filling equipment

Abstract

The application discloses a self-sealing quick-change feeding module for a vacuum glue filling device, which comprises a glue feeding cylinder and a glue inlet block installed on the lower end face of a valve body, the lower end of the glue feeding cylinder is connected with a glue feeding block with a glue feeding channel arranged in the glue feeding block, a connecting block is installed on the side end face of the end of the glue inlet block facing the glue feeding block, the glue feeding cylinder is embeddedly installed in a supporting seat, a first magnet is installed on the side of the supporting seat facing the valve body, a fixing block installed on the valve body is provided with a second magnet on the side facing the supporting seat, the supporting seat and the fixing block are connected through at least two groups of pins and positioning holes in which the pins can be embedded, and the end of each pin close to the positioning hole is provided with an outer chamfer. The glue feeding cylinder connected with the valve body can be conveniently disassembled and replaced, the valve body and the glue feeding cylinder are quickly connected, the connection stability is good, and the stability of glue feeding from the glue feeding cylinder to the valve body and glue dispensing of the valve body is improved.

Description

Technical Field

[0001] This invention relates to the field of dispensing technology, and in particular to a self-sealing quick-change feeding module for vacuum dispensing equipment. Background Technology

[0002] In automated precision dispensing operations, the dispensing valve and the glue supply cylinder are core functional components. The glue supply cylinder stores and supplies glue to the dispensing valve, and needs to be replaced when the glue inside is depleted. However, existing common dispensing assemblies generally have the following shortcomings in the glue supply cylinder replacement process, which restrict the efficiency, yield, and cleanliness of the dispensing process: Traditional glue supply cartridges and dispensing valves are usually fastened with threads or clamps, requiring auxiliary tools for replacement, which is time-consuming and labor-intensive. More importantly, after each replacement, the alignment of the flow path between the new glue supply cartridge and the glue inlet of the dispensing valve is prone to deviation, requiring repeated adjustments and calibrations. Poor reset accuracy can cause poor glue flow or seal failure, directly affecting the consistency of dispensing volume and process stability.

[0003] When the old glue dispenser is detached from the dispensing valve, the connection will break instantly. At this time, the residual pressure inside the glue dispenser and the glue remaining in the valve body flow channel will overflow or drip from the disconnected end. This not only results in the direct waste of expensive glue, but the dripping residual glue can also contaminate the product surface, equipment table, and photoelectric sensors, causing poor product appearance or even functional defects, and increasing the burden of equipment cleaning and maintenance.

[0004] During the interval between replacing the old and new glue supply cartridges, the glue inlet channel of the dispensing valve is briefly exposed to air, which may cause the glue to solidify slightly, dry out, or draw in air bubbles. Simultaneously, the sudden change in pressure within the channel from a stable supply to normal pressure and then back to normal pressure can easily cause air bubbles to form inside the glue or uneven concentration distribution. This results in extremely unstable initial glue dispensing after reconnecting the glue circuit, requiring auxiliary operations such as pre-dispensing and wiping to restore stability, leading to additional glue consumption and wasted production time. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a self-sealing quick-change feeding module for a vacuum dispensing equipment. The self-sealing quick-change feeding module facilitates the disassembly and replacement of the feeding cylinder connected to the valve body, while realizing a quick connection between the valve body and the feeding cylinder with good connection stability, thereby improving the stability of feeding glue from the feeding cylinder to the valve body and dispensing glue to the valve body.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a self-sealing quick-change feeding module for a vacuum dispensing equipment, comprising: a dispensing cylinder, a valve body located on one side of the dispensing cylinder, and a dispensing block installed on the lower end face of the valve body. The dispensing block has a dispensing channel and a dispensing outlet channel that are interconnected. A dispensing block with a dispensing channel is connected to the lower end of the dispensing cylinder. A connecting block with a connecting channel is installed on the side face of the dispensing block facing the dispensing block. A first mounting hole is formed on the side face of the dispensing block facing the connecting block. The lower end of the dispensing channel, whose upper end is connected to the dispensing outlet of the dispensing cylinder, is connected to the first mounting hole. The hole is connected, and one end of a horizontally extending glue supply connector is embedded in the first mounting hole. The glue supply connector has a through hole that runs horizontally through it. A glue supply nut with a first central through hole is installed at the end of the through hole near the glue supply channel. One end of a first spring horizontally disposed in the through hole contacts the end face of the glue supply nut. A first ball is disposed at the other end of the first spring. The inner wall of the middle part of the through hole is configured as a slope surface that cooperates with the first ball, so that the first ball can be squeezed and contacted by the slope surface that is inclined inward in the direction away from the glue supply nut under the action of the first spring in the compression state. The connecting block has a second mounting hole on its side surface facing the glue supply block, which communicates with the flow channel. One end of a horizontally extending glue inlet connector is embedded in the second mounting hole, and a flow channel hole is formed on the end face of the glue inlet connector located in the second mounting hole. A transition flow channel with an inner diameter smaller than the inner diameter of the flow channel hole is formed between the other end of the glue inlet connector and the flow channel hole. The transition flow channel and the flow channel hole are connected by a tapered through hole. A second intermediate... The glue inlet nut of the central through hole has a second spring in a compression state horizontally arranged between the end face of the glue inlet nut and a second ball disposed in the tapered through hole, so that the second ball, whose diameter is larger than the inner diameter of the transition flow channel, can be pressed into contact with the inner wall of the tapered through hole. When the end of the glue inlet connector away from the second mounting hole is inserted into the through hole and pressed into contact with the first ball in the through hole, a gap is formed between the first ball and the slope surface of the inner wall of the through hole, thereby making one end of the transition flow channel connected to the glue supply flow channel on the glue supply block; The glue supply cylinder is embedded in a support base. A first magnet is installed on the side of the support base facing the valve body. A second magnet that cooperates with the first magnet is installed on the side of a fixing block installed on the valve body facing the support base. The support base and the fixing block are connected by at least two sets of pins and positioning holes into which the pins can be inserted. Each pin has an outer chamfer at the end near the positioning hole.

[0007] The following are further improvements to the above technical solution: 1. In the above scheme, the outer surface of the glue supply connector and the inner wall of the first mounting hole, and the outer surface of the glue inlet connector and the inner wall of the second mounting hole are both connected by threads.

[0008] 2. In the above scheme, the glue supply block is integrally formed on the lower part of the support base.

[0009] 3. In the above scheme, the first magnet and the second magnet are both strong magnets or both are electromagnets.

[0010] 4. In the above scheme, the two pins installed on the support base are respectively located on the upper and lower sides of the first magnet, and the two positioning holes corresponding to the fixed block are respectively located on the upper and lower sides of the second magnet.

[0011] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The present invention relates to a self-sealing quick-change feeding module for a vacuum dispensing equipment. A connecting block with a connecting channel is installed on the side face of the glue inlet block facing the glue supply block. A first mounting hole is formed on the side face of the glue supply block facing the connecting block. The lower end of the glue supply channel, whose upper end is connected to the glue outlet of the glue supply cylinder, is connected to the first mounting hole. One end of a horizontally extending glue supply connector is embedded in the first mounting hole. A through hole is formed on the glue supply connector, and a glue supply nut with a first central through hole is installed at the end of the through hole near the glue supply channel. One end of a first spring horizontally disposed in the through hole is connected to the glue supply nut. The end face of the first spring is in contact with the other end of the first spring, and a first ball is provided at the other end of the first spring. The inner wall of the middle part of the through hole is set as a slope surface that cooperates with the first ball, so that the first ball can be squeezed and contacted by the slope surface that is inclined inward in the direction away from the glue supply nut under the action of the first spring in the compression state. A second mounting hole communicating with the flow channel is opened on the side surface of the connecting block facing the glue supply block. One end of a horizontally extending glue inlet connector is embedded in the second mounting hole, and a flow channel hole is opened on the end face of the glue inlet connector located in the second mounting hole. An inner diameter smaller than the inner diameter of the flow channel hole is opened between the other end of the glue inlet connector and the flow channel hole. A transition channel is connected to the channel hole via a tapered through-hole. A glue-injecting nut with a second central through-hole is installed at the end of the channel hole opposite to the transition channel. A second spring, under compression, is horizontally positioned between the end face of the glue-injecting nut and a second sphere disposed within the tapered through-hole. This allows the second sphere, with a diameter larger than the inner diameter of the transition channel, to press against the inner wall of the tapered through-hole. When the end of the glue-injecting connector away from the second mounting hole penetrates into the through-hole and presses against the first sphere within the through-hole, a gap is formed between the first sphere and the sloped surface of the inner wall of the through-hole. This allows one end of the transition channel to contact the glue supply block. The connected glue supply channel allows for quick disassembly and connection between the dispensing valve body and the glue supply cylinder, facilitating continuous glue supply to the valve body when the glue supply cylinder is replaced. During glue supply cylinder replacement, the glue inlet block on the valve body and the glue supply block on the new glue supply cylinder can be quickly connected. Furthermore, when the valve body is separated from the old glue supply cylinder, the flow channels inside both the old glue supply cylinder and the old glue inlet block can be quickly shut off. This avoids glue spillage and waste, as well as damage to the dispensing product, while maintaining the stability and consistency of the glue in the dispensing channel before and after glue supply cylinder replacement, thus ensuring consistent dispensing quality.

[0012] 2. The present invention relates to a self-sealing quick-change feeding module for a vacuum dispensing equipment. The dispensing cylinder is embedded in a support base. A first magnet is mounted on the side of the support base facing the valve body. A second magnet, which cooperates with the first magnet, is mounted on a fixing block on the valve body facing the support base. When one end of the transition flow channel connects with the dispensing flow channel on the dispensing block, the first magnet and the second magnet are attracted and fixed. This facilitates the disassembly and replacement of the dispensing cylinder connected to the valve body, while achieving a quick connection between the valve body and the dispensing cylinder with good connection stability, thereby improving the stability of dispensing glue from the dispensing cylinder to the valve body and the dispensing of glue to the valve body. Furthermore, the support base and the fixing block are connected by at least two sets of pins and positioning holes for pin insertion, which further improves the stability of the connection between the valve body and the dispensing cylinder, as well as the assembly accuracy between the two and the positional accuracy of the dispensing connector before and after replacing the dispensing cylinder, thereby further improving the dispensing stability. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the overall structure of the self-sealing quick-change feeding module of the present invention; Appendix Figure 2 This is a cross-sectional view of the overall structure of the self-sealing quick-change feeding module of the present invention; Appendix Figure 3 Appendix to this invention Figure 2 Enlarged view of point A in the middle; Appendix Figure 4 Appendix to this invention Figure 2 Enlarged view of point B in the middle; Appendix Figure 5 Appendix to this invention Figure 4 Enlarged view of point C in the middle; Appendix Figure 6 This is a partial structural breakdown diagram of the self-sealing quick-change feeding module of the present invention.

[0014] In the attached diagrams: 1. Glue supply block; 2. Connecting block; 3. Glue supply channel; 4. Connecting channel; 5. First mounting hole; 6. Glue supply connector; 61. Through hole; 7. Glue supply nut; 71. First central through hole; 8. First spring; 9. First sphere; 10. Flow channel hole; 11. Tapered through hole; 12. Glue inlet nut; 121. Second central through hole; 13. Second sphere; 14. Second spring; 15. Second mounting hole ; 16. Glue inlet connector; 161. Transition channel; 17. Sealing ring; 181. Support base; 182. Fixing block; 191. First magnet; 192. Second magnet; 201. Pin; 202. Positioning hole; 21. Glue supply cylinder; 211. Glue outlet; 22. Valve body; 23. Glue inlet block; 231. Glue inlet channel; 232. Glue outlet channel; 24. Connecting nozzle; 25. Air inlet nozzle; 26. Receiving groove. Detailed Implementation

[0015] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0016] Example 1: A feeding module with a self-sealing fluid connector includes: a feeding cylinder 21, a valve body 22 located on one side of the feeding cylinder 21, and a feeding block 23 installed on the lower end face of the valve body 22. The feeding block 23 has a feeding channel 231 and a discharging channel 232 that are interconnected. The lower end of the feeding cylinder 21 is connected to a feeding block 1 with a feeding channel 3 inside. A connecting block 2 with a connecting channel 4 inside is installed on the side face of the feeding block 23 facing the feeding block 1. The side face of the feeding block 1 facing the connecting block 2 has a first mounting hole 5. The lower end of the feeding channel 3, whose upper end is connected to the discharging port 211 of the feeding cylinder 21, is connected to the first mounting hole 5. One end of a horizontally extending glue supply connector 6 is embedded in the first mounting hole 5. The glue supply connector 6 has a through hole 61 extending horizontally. A glue supply nut 7 with a first central through hole 71 is installed at one end of the through hole 61 near the glue supply channel 3. One end of a first spring 8 horizontally disposed in the through hole 61 contacts the end face of the glue supply nut 7. A first ball 9 is disposed at the other end of the first spring 8. The inner wall of the middle part of the through hole 61 is configured as a slope surface that cooperates with the first ball 9, so that the first ball 9 can be squeezed and contacted by the slope surface that is inclined inward in the direction away from the glue supply nut 7 under the action of the first spring 8 in the compression state. When replacement is needed, remove the glue supply tube, glue supply block and support from the opposite direction to the connecting block, then remove the glue tube that needs to be replaced and replace it with a new glue tube. At this time, the glue supply block is separated from the connecting block and the connecting needle exits the glue supply channel. During the above process, the first ball inside the glue supply connector is squeezed and contacts the through hole under the compression of the first spring, blocking the channel for the glue to flow outward. This can stop the glue from overflowing when changing the glue cartridge, thus reducing glue waste. The connecting block 2 has a second mounting hole 15 on its side surface facing the glue supply block 1, which communicates with the connecting channel 4. One end of a horizontally extending glue inlet connector 16 is embedded in the second mounting hole 15, and a flow channel hole 10 is formed on the end face of the glue inlet connector 16 located in the second mounting hole 15. A transition flow channel 161 with an inner diameter smaller than the inner diameter of the flow channel hole 10 is formed between the other end of the glue inlet connector 16 and the flow channel hole 10. The transition flow channel 161 is connected to the flow channel hole 10 through a tapered through hole 11. A second central... The glue inlet nut 12 of the through hole 121 has a second spring 14 in a compression state horizontally disposed between the end face of the glue inlet nut 12 and a second ball 13 disposed in the tapered through hole 11, so that the second ball 13, whose diameter is larger than the inner diameter of the transition channel 161, can be pressed into contact with the inner wall of the tapered through hole 11. When the end of the glue inlet connector 16 away from the second mounting hole 15 is inserted into the through hole 61 and pressed into contact with the first ball 9 in the through hole 61, a gap is formed between the first ball 9 and the slope surface of the inner wall of the through hole 61, thereby making one end of the transition channel 161 connected to the glue supply channel 3 on the glue supply block 1. When installation is required, align the glue inlet connector with the glue supply connector and move it towards the glue supply connector. As the glue inlet connector moves further into the glue supply connector, the first ball presses against the glue inlet connector and pushes it away from the through hole, creating a gap between the first ball and the through hole. The glue then enters the transition channel of the glue inlet connector from the through hole.

[0017] The outer surface of the glue supply connector 6 and the inner wall of the first mounting hole 5, and the outer surface of the glue inlet connector 16 and the inner wall of the second mounting hole 15 are all connected by threads.

[0018] The outer surface of the glue supply nut 7 and the inner wall of the through hole 61 on the glue supply connector 6, and the outer surface of the glue inlet nut 12 and the inner wall of the flow channel hole 10 are all connected by threads.

[0019] A sealing ring 17 is provided between the outer surface of the glue inlet connector 16 and the inner wall of the through hole 61 on the glue supply connector 6.

[0020] The aforementioned glue supply cylinder 21 is embedded in a support base 181. A first magnet 191 is installed on the side of the support base 181 facing the valve body 22. A second magnet 192 that cooperates with the first magnet 191 is installed on the side of a fixing block 182 installed on the valve body 22 facing the support base 181. When one end of the transition channel 161 is connected to the glue supply channel 3 on the glue supply block 1, the first magnet 191 and the second magnet 192 are attracted and fixed. When the transition channel is connected to the glue supply channel, the first magnet on the support base and the second magnet on the fixing block are attracted and fixed, which can realize the quick disassembly and fixed installation of the glue tube.

[0021] Both the first magnet 191 and the second magnet 192 mentioned above are electromagnets.

[0022] The valve body 22 mentioned above is a piezoelectric ceramic injection valve body.

[0023] An air inlet 25 is installed at the upper end of the aforementioned glue supply cylinder 21.

[0024] The first magnet 191 and the second magnet 192 are respectively embedded in the receiving grooves 26 opened on the support base 181 and the fixing block 182.

[0025] The aforementioned adhesive supply block 1 is integrally formed on the lower part of the support base 181.

[0026] Example 2: A dispensing assembly for easy cartridge replacement includes: a dispensing cartridge 21, a valve body 22 located on one side of the dispensing cartridge 21, and a dispensing block 23 installed on the lower end face of the valve body 22. The dispensing block 23 has a dispensing channel 231 and a dispensing channel 232 that are interconnected. A dispensing block 1 with a dispensing channel 3 is connected to the lower end of the dispensing cartridge 21. A connecting block 2 with a connecting channel 4 is installed on the side face of the dispensing block 23 facing the dispensing block 1. A first mounting hole 5 is opened on the side face of the dispensing block 1 facing the connecting block 2. The lower end of the dispensing channel 3, whose upper end is connected to the dispensing port 211 of the dispensing cartridge 21, is connected to the first mounting hole 5. One end of the horizontally extending glue supply connector 6 is embedded in the first mounting hole 5. The glue supply connector 6 has a through hole 61 that runs horizontally through it. A glue supply nut 7 with a first central through hole 71 is installed at one end of the through hole 61 near the glue supply channel 3. One end of a first spring 8, which is horizontally disposed in the through hole 61, contacts the end face of the glue supply nut 7. A first ball 9 is disposed at the other end of the first spring 8. The inner wall of the middle part of the through hole 61 is configured as a slope surface that cooperates with the first ball 9, so that the first ball 9 can be squeezed and contacted by the slope surface that is inclined inward in the direction away from the glue supply nut 7 under the action of the first spring 8 in the compression state. When replacement is needed, remove the glue supply tube and glue supply block from the opposite direction to the connecting block, then remove the glue tube that needs to be replaced and replace it with a new glue tube. At this time, the glue supply block and the connecting block are separated, and the connecting pin exits the glue supply channel. The connecting block 2 has a second mounting hole 15 on its side surface facing the glue supply block 1, which communicates with the connecting channel 4. One end of a horizontally extending glue inlet connector 16 is embedded in the second mounting hole 15, and a flow channel hole 10 is formed on the end face of the glue inlet connector 16 located in the second mounting hole 15. A transition flow channel 161 with an inner diameter smaller than the inner diameter of the flow channel hole 10 is formed between the other end of the glue inlet connector 16 and the flow channel hole 10. The transition flow channel 161 is connected to the flow channel hole 10 through a tapered through hole 11. A second intermediate... The glue inlet nut 12 of the central through hole 121 has a second spring 14 in a compression state horizontally disposed between the end face of the glue inlet nut 12 and a second ball 13 disposed in the tapered through hole 11, so that the second ball 13, whose diameter is larger than the inner diameter of the transition flow channel 161, can be pressed into contact with the inner wall of the tapered through hole 11. When the end of the glue inlet connector 16 away from the second mounting hole 15 is inserted into the through hole 61 and pressed into contact with the first ball 9 in the through hole 61, a gap is formed between the first ball 9 and the slope surface of the inner wall of the through hole 61, thereby making one end of the transition flow channel 161 connected to the glue supply flow channel 3 on the glue supply block 1. After the adhesive enters the transition channel of the adhesive connector through the through hole, the second ball inside the tapered through hole is pressed against the inner wall of the tapered through hole by the compression of the second spring, thereby preventing the adhesive from entering the connecting channel before dispensing and avoiding adhesive overflow during installation.

[0027] The outer surface of the glue supply connector 6 and the inner wall of the first mounting hole 5, and the outer surface of the glue inlet connector 16 and the inner wall of the second mounting hole 15 are all connected by threads.

[0028] The outer surface of the glue supply nut 7 and the inner wall of the through hole 61 on the glue supply connector 6, and the outer surface of the glue inlet nut 12 and the inner wall of the flow channel hole 10 are all connected by threads.

[0029] The aforementioned glue supply cylinder 21 is embedded in a support base 181. A first magnet 191 is installed on the side of the support base 181 facing the valve body 22. A second magnet 192 that cooperates with the first magnet 191 is installed on the side of a fixing block 182 installed on the valve body 22 facing the support base 181. When one end of the transition channel 161 is connected to the glue supply channel 3 on the glue supply block 1, the first magnet 191 and the second magnet 192 are attracted and fixed.

[0030] Both the first magnet 191 and the second magnet 192 mentioned above are strong magnets.

[0031] The aforementioned support base 181 and fixing block 182 are connected by at least two sets of pins 201 and positioning holes 202 into which the pins 201 can be inserted; Inserting the pin into the positioning hole to fix the support base and the fixing block can achieve stable installation of the glue tube, avoid the glue tube shaking during the glue dispensing process, and thus improve the quality and efficiency of glue dispensing.

[0032] The two pins 201 installed on the support base 181 are respectively located on the upper and lower sides of the first magnet 191, and the two positioning holes 202 corresponding to those opened on the fixing block 182 are respectively located on the upper and lower sides of the second magnet 192.

[0033] Each of the aforementioned pins 201 has an outer chamfer at one end near the positioning hole 202.

[0034] 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.

[0035] The valve body 22 mentioned above is the injection valve body.

[0036] The lower end of the inclined connecting channel 4 is connected to one end of the horizontally extending glue inlet channel 231 on the glue inlet block 23, which is opposite to the glue outlet channel 232.

[0037] A sealing ring 17 is provided between the connecting block 2 and the glue inlet block 23 and on the outside of the connection between the connecting channel 4 and the glue inlet channel 231.

[0038] The second mounting hole 15 is connected to the upper end of the connecting channel 4.

[0039] The working principle of this invention is as follows: When replacement is needed, move the old glue supply cylinder in the opposite direction to the valve body, separate the glue supply block from the connecting block, and separate the glue inlet connector from the first ball. During this process, the first ball, under the action of the first spring, presses against the inclined surface of the inner wall of the through hole to quickly cut off the entire glue supply channel; at the same time, the second ball, under the action of the second spring, also presses against the inner wall of the tapered through hole to quickly cut off the entire connecting channel and glue inlet channel, thereby avoiding both waste caused by glue overflow and damage to the glued products. Then, the new glue supply cylinder is moved towards the valve body until the second magnet installed on the valve body and the first magnet installed on the glue supply cylinder are attracted and fixed by the limiting cooperation of the pin and the pin positioning hole. This achieves a quick connection between the valve body and the glue supply cylinder with good connection stability, and can also improve the assembly accuracy between the two and the positional accuracy of the glue supply connector before and after replacing the glue supply cylinder, thereby improving the stability of glue supply from the glue supply cylinder to the valve body and glue dispensing on the valve body. The glue supply block is connected to the connecting block, and the glue inlet connector is inserted into the through hole on the glue supply connector and squeezed into contact with the first ball. The first ball moves towards the first spring under the push of the glue inlet connector and squeezes the first spring, thereby forming a gap between the first ball and the slope surface of the inner wall of the through hole and the glue supply channel on the glue supply block. At the same time, the second ball in the conical through hole is always squeezed into contact with the inner wall of the conical through hole under the squeezing action of the second spring, thereby preventing glue from entering the connecting channel before dispensing, which can avoid glue overflow during installation. When dispensing is required, the pressurized adhesive in the new dispensing cylinder flows towards the dispensing channel. During this process, the second ball moves under the pressure of the adhesive and squeezes the second spring, thereby forming a dispensing gap between the second ball and the inner wall of the conical through hole, realizing the rapid connection between the internal adhesive channels of the dispensing block on the new dispensing cylinder and the inlet block on the valve body.

[0040] When using the self-sealing quick-change feeding module for vacuum dispensing equipment, it can quickly disassemble and connect the dispensing valve body and the dispensing cylinder to facilitate the replacement of the dispensing cylinder for continuous dispensing of the valve body. During the replacement of the dispensing cylinder, it can quickly connect the dispensing block on the valve body with the dispensing block on the new dispensing cylinder. When the valve body is separated from the old dispensing cylinder, it can simultaneously quickly cut off the dispensing block on the old dispensing cylinder and the dispensing block on the valve body. This avoids waste and damage to the dispensing product caused by dispensing overflow, and maintains the stability and consistency of the dispensing liquid in the dispensing channel before and after replacing the dispensing cylinder, thereby ensuring consistent dispensing quality. Furthermore, while facilitating the disassembly and replacement of the glue supply cylinder connected to the valve body, it also enables a quick and stable connection between the valve body and the glue supply cylinder, thereby improving the stability of glue supply from the glue supply cylinder to the valve body and the glue dispensing of the valve body. In addition, it can further improve the stability of the connection between the valve body and the glue supply cylinder, as well as improve the assembly accuracy between the two and the positional accuracy of the glue supply connector before and after replacing the glue supply cylinder, thereby further improving the stability of glue dispensing.

[0041] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A self-sealing quick-change feeding module for a vacuum dispensing equipment, comprising: The device comprises a glue supply cylinder (21), a valve body (22) located on one side of the glue supply cylinder (21), and a glue inlet block (23) installed on the lower end face of the valve body (22). The glue inlet block (23) is provided with a glue inlet channel (231) and a glue outlet channel (232) that are interconnected. The device is characterized in that: the lower end of the glue supply cylinder (21) is connected to a glue supply block (1) with a glue supply channel (3) inside. A connecting block (2) with a connecting channel (4) inside is installed on the side end face of the glue inlet block (23) facing the glue supply block (1). A first mounting hole (5) is opened on the side surface of the glue supply block (1) facing the connecting block (2). The lower end of the glue supply channel (3), which is connected to the glue outlet (211) of the glue supply cylinder (21) at its upper end, is connected to the first mounting hole (5). One end of the glue supply connector (6) is embedded in the first mounting hole (5). The glue supply connector (6) has a through hole (61) that runs horizontally through it. A glue supply nut (7) with a first central through hole (71) is installed at one end of the through hole (61) near the glue supply channel (3). One end of a first spring (8) that is horizontally set in the through hole (61) contacts the end face of the glue supply nut (7). A first ball (9) is set at the other end of the first spring (8). The inner wall of the middle part of the through hole (61) is set as a slope surface that cooperates with the first ball (9), so that the first ball (9) can be squeezed and contacted by the slope surface that is inclined inward in the direction away from the glue supply nut (7) under the action of the first spring (8) in the compression state. The connecting block (2) has a second mounting hole (15) on its side surface facing the glue supply block (1) that communicates with the connecting channel (4). One end of a horizontally extending glue inlet connector (16) is embedded in the second mounting hole (15), and a flow channel hole (10) is formed on the end face of the glue inlet connector (16) located in the second mounting hole (15). A transition flow channel (161) with an inner diameter smaller than the inner diameter of the flow channel hole (10) is formed between the other end of the glue inlet connector (16) and the flow channel hole (10). The transition flow channel (161) is connected to the flow channel hole (10) through a tapered through hole (11). A second central through hole is installed at the end of the flow channel hole (10) opposite to the transition flow channel (161). The glue inlet nut (12) of the hole (121) has a second spring (14) in a compression state horizontally arranged between the end face of the glue inlet nut (12) and a second ball (13) disposed in a tapered through hole (11), so that the second ball (13) with a diameter larger than the inner diameter of the transition channel (161) can be pressed into contact with the inner wall of the tapered through hole (11). When the end of the glue inlet connector (16) away from the second mounting hole (15) is inserted into the through hole (61) and pressed into contact with the first ball (9) in the through hole (61), a gap is formed between the first ball (9) and the slope surface of the inner wall of the through hole (61), so that one end of the transition channel (161) is connected to the glue supply channel (3) on the glue supply block (1); The glue supply cylinder (21) is embedded in a support base (181). A first magnet (191) is installed on the side of the support base (181) facing the valve body (22). A second magnet (192) that cooperates with the first magnet (191) is installed on the side of the fixing block (182) on the side facing the support base (181). The support base (181) and the fixing block (182) are connected by at least two sets of pins (201) and positioning holes (202) into which the pins (201) can be inserted. Each pin (201) has an outer chamfer at one end near the positioning hole (202).

2. The self-sealing quick-change feeding module for vacuum dispensing equipment according to claim 1, characterized in that: The outer surface of the glue supply connector (6) and the inner wall of the first mounting hole (5), and the outer surface of the glue inlet connector (16) and the inner wall of the second mounting hole (15) are both connected by threads.

3. The self-sealing quick-change feeding module for vacuum dispensing equipment according to claim 1, characterized in that: The glue supply block (1) is integrally formed on the lower part of the support base (181).

4. The self-sealing quick-change feeding module for vacuum dispensing equipment according to claim 1, characterized in that: The first magnet (191) and the second magnet (192) are both strong magnets or both electromagnets.

5. The self-sealing quick-change feeding module for vacuum dispensing equipment according to claim 1, characterized in that: Two pins (201) installed on the support base (181) are respectively located on the upper and lower sides of the first magnet (191), and two positioning holes (202) corresponding to the fixed block (182) are respectively located on the upper and lower sides of the second magnet (192).

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