Replacement mechanism for glue supply barrel of glue dispensing device

Abstract

The utility model discloses a mechanism for replacing a glue supply cylinder of a glue dispensing device, a glue dispensing unit comprises a glue supply cylinder, a valve body located on one side of the glue supply cylinder and a glue inlet block installed on the lower end face of the valve body, the part replacing mechanism comprises a three-axis driving mechanism installed on a machine table, and the lower end of the glue supply cylinder is connected with a glue supply block internally provided with a glue supply runner. A connecting block internally provided with a communicating flow channel is installed on the side end face of the end, facing the glue supply block, of the glue inlet block, one end of a glue supply connecting piece extending horizontally is installed in the first installation hole in an embedded mode, a through hole penetrating in the horizontal direction is formed in the glue supply connecting piece, and a ball is arranged at one end of a spring horizontally arranged in the through hole. According to the utility model, the glue supply barrel connected to the valve body can be automatically replaced, and a flow channel in the glue supply block on the glue supply barrel can be quickly cut off when the valve body is separated from the glue supply barrel, so that glue liquid is prevented from overflowing.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing, in particular to a replacement mechanism for a glue supply cylinder of a glue dispensing device. Background Art

[0002] Glue dispensing, also known as gluing, coating, pouring, or dripping, is a process in which electronic glue, oil, or other liquids are applied, potted, or dripped onto products to achieve adhesion, potting, insulation, fixation, and surface smoothing. In existing glue dispensing techniques, the glue cartridge must be manually replaced after depletion, and residual glue in the cartridge can easily overflow during replacement. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a replacement mechanism for the glue supply cylinder of a glue dispensing device, which can automatically replace the glue supply cylinder connected to the valve body, and quickly cut off the internal flow channel of the glue supply block on the glue supply cylinder when the valve body is separated from the glue supply cylinder, thereby avoiding overflow of glue liquid.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a replacement mechanism for a glue supply cylinder of a glue dispensing device, which is used for a glue dispensing unit, the glue dispensing unit comprising: a glue supply cylinder, a valve body located on one side of the glue supply cylinder and a glue feeding block installed on the lower end surface of the valve body, the glue feeding block respectively provided with a glue feeding channel and a glue discharging channel which are connected to each other, the replacement mechanism comprising: a three-axis driving mechanism installed on a machine platform, the valve body installed on the three-axis driving mechanism, the glue supply cylinder is connected to the side of the valve body which is opposite to the three-axis driving mechanism, at least two material seats for placing the glue supply cylinder are installed on the machine platform, the lower end of the glue supply cylinder is connected to a glue supply block provided with a glue supply channel, the side end surface of the glue supply block facing one end of the glue supply block is provided with a connecting block provided with a communicating channel, the upper end of the vertical section of the glue supply channel is connected to the glue outlet of the glue supply cylinder;

[0005] The glue supply block is provided with a first mounting hole on a side surface facing the connecting block, and 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, and one end of a horizontally extending glue supply connector is embedded and installed in the first mounting hole, and a through hole is provided on the glue supply connector that passes through in a horizontal direction, and a glue supply nut with a central through hole is installed at one end of the through hole close to the glue supply channel, and one end of a spring horizontally arranged in the through hole contacts the end surface of the glue supply nut, and a sphere is provided at the other end of the spring, and the inner wall in the middle of the through hole is provided with a slope surface that cooperates with the sphere, so that the sphere can be squeezed and contacted with the slope surface inclined inwardly in the direction away from the glue supply nut under the action of the spring in an extruded state;

[0006] A second mounting hole communicating with the communicating flow channel is provided on the side surface of the connecting block facing the glue supply block, and one end of a horizontally extending glue inlet connector is embedded and installed in the second mounting hole. When the end of the glue inlet connector away from the second mounting hole penetrates into the through hole and is squeezed into contact with the sphere in the through hole, a gap is formed between the sphere and the sloped surface of the inner wall of the through hole, so that the glue supply flow channel on the glue supply block and the second mounting hole on the connecting block are connected through the transition flow channel provided on the glue inlet connector.

[0007] The further improved scheme in the above technical scheme is as follows:

[0008] 1. In the above scheme, a receiving hole for the glue supply tube to be inserted is formed on the upper surface of the material holder, and the receiving hole is connected to the side surface of the material holder facing the three-axis drive mechanism. A stop bar is installed on the side of the material holder facing the three-axis drive mechanism and on both sides of the receiving hole. When the glue supply tube is inserted into the receiving hole, the stop bar contacts and blocks the glue supply tube.

[0009] 2. In the above solution, the outer surface of the glue supply nut is connected to the inner wall of the through hole on the glue supply connector via a threaded connection.

[0010] 3. In the above solution, a sealing ring is provided between the outer surface of the glue inlet connector and the inner wall of the through hole of the glue supply connector.

[0011] 4. In the above solution, the lower end of the inclined connecting flow channel is connected to the end of the horizontally extending glue inlet flow channel on the glue inlet block, which is opposite to the glue outlet flow channel.

[0012] 5. In the above solution, the second mounting hole is connected to the upper end of the connecting flow channel.

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

[0014] The replacement mechanism of the glue supply cylinder of the utility model glue dispensing device, its valve body is installed on the three-axis drive mechanism, the glue supply cylinder is connected to the valve body on the side opposite to the three-axis drive mechanism, at least two material seats for placing the glue supply cylinder are installed on the machine platform, the lower end of the glue supply cylinder is connected to a glue supply block with a glue supply flow channel, a connecting block with a connecting flow channel is installed on the side end surface of the glue feed 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 a first 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 and installed in the first mounting hole. The glue supply connector is provided with a through hole that passes through in the horizontal direction. A glue supply nut with a central through hole is installed at one end of the through hole close to the glue supply channel. One end of a spring horizontally arranged in the through hole contacts the end face of the glue supply nut. A sphere is arranged at the other end of the spring. The inner wall in the middle of the through hole is arranged as a slope surface that cooperates with the sphere, so that The ball can be squeezed and contacted with the sloped surface inclined inwardly in the direction away from the glue supply nut under the action of the spring in the extrusion state. A second mounting hole connected to the connecting flow channel is provided on the side surface of the connecting block facing the glue supply block. One end of a horizontally extending glue supply connector is embedded and installed in the second mounting hole. When the end of the glue supply connector away from the second mounting hole penetrates into the through hole and is squeezed and contacted with the ball in the through hole, a gap is formed between the ball and the sloped surface of the inner wall of the through hole, thereby connecting the glue supply flow channel on the glue supply block and the second mounting hole on the connecting block through the transition flow channel provided on the glue supply connector. Through the movement of the three-axis mechanism, the old glue supply cylinder connected to the valve body can be automatically placed in the accommodating hole of the material seat and separated from the valve body, and then the valve body can be connected to the new glue supply cylinder in another material seat, thereby realizing automatic and continuous operation of the glue dispensing process, improving the efficiency of glue dispensing, and realizing the rapid cutoff of the internal flow channel of the glue supply block on the old glue supply cylinder when the valve body is separated from the old glue supply cylinder, thereby preventing glue liquid from overflowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attachment Figure 1 This is a structural diagram of the replacement mechanism for the glue cylinder of the glue dispensing device of the utility model;

[0016] Attachment Figure 2 For this utility model Figure 3 A magnified schematic diagram of point A in the middle;

[0017] Attachment Figure 3 This is a partial structural diagram of the replacement mechanism for the glue cylinder of the glue dispensing device of the present invention;

[0018] Attachment Figure 4 For this utility model Figure 3 Schematic cross-section along the middle BB;

[0019] Attachment Figure 5 For this utility model Figure 4 The enlarged schematic diagram of point C in the middle;

[0020] Attachment Figure 6 This is a schematic diagram of the partial structure of the replacement mechanism of the glue cylinder of the glue dispensing device of the present invention.

[0021] In the above drawings: 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. Central through hole; 8. Spring; 9. Sphere; 10. Glue supply cylinder; 101. Glue outlet; 11. Valve body; 12. Glue feed block; 121. Glue feed channel; 122. Glue outlet channel; 13. Connecting nozzle; 14. Air inlet nozzle; 15. Second mounting hole; 16. Glue feed connector; 161. Transition channel; 17. Sealing ring; 19. Machine; 20. Three-axis drive mechanism; 21. Material seat; 211. Accommodating hole; 212. Baffle. DETAILED DESCRIPTION

[0022] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0023] Example 1: A replacement mechanism for a dispensing device supply cartridge, used for a dispensing unit, the dispensing unit comprising: a supply cartridge 10, a valve body 11 located on one side of the supply cartridge 10, and a glue feed block 12 mounted on the lower end surface of the valve body 11, the glue feed block 12 being provided with a glue feed channel 121 and a glue discharge channel 122 communicating with each other, the replacement mechanism comprising: a three-axis drive mechanism 20 mounted on a machine platform 19, the valve body 11 being mounted on the three-axis drive mechanism 20 0, the glue supply cylinder 10 is connected to the side of the valve body 11 opposite to the three-axis drive mechanism 20, and the machine table 19 is equipped with at least two material seats 21 for placing the glue supply cylinder 10. The lower end of the glue supply cylinder 10 is connected to a glue supply block 1 with a glue supply channel 3 therein, and the side end surface of the glue feed block 12 facing the glue supply block 1 is equipped with a connecting block 2 with a connecting channel 4 therein, and the upper end of the vertical section 31 of the glue supply channel 3 is connected to the glue outlet 101 of the glue supply cylinder 10;

[0024] A first mounting hole 5 is provided on the side surface of the glue supply block 1 facing the connecting block 2, and the lower end of the glue supply channel 3 whose upper end is connected to the glue outlet 101 of the glue supply cylinder 10 is connected to the first mounting hole 5, and one end of a horizontally extending glue supply connector 6 is embedded and installed in the first mounting hole 5, and a through hole 61 is provided on the glue supply connector 6 that passes through in the horizontal direction, and a glue supply nut 7 with a central through hole 71 is installed at one end of the through hole 61 close to the glue supply channel 3, and one end of a spring 8 horizontally arranged in the through hole 61 contacts the end surface of the glue supply nut 7, and a sphere 9 is provided at the other end of the spring 8, and the inner wall of the middle part of the through hole 61 is provided as a slope surface cooperating with the sphere 9, so that the sphere 9 can be squeezed and contacted with the slope surface inclined inwardly in the direction away from the glue supply nut 7 under the action of the spring 8 in the extrusion state;

[0025] A second mounting hole 15 communicating with the communicating flow channel 4 is provided on the side surface of the connecting block 2 facing the glue supply block 1, and one end of a horizontally extending glue inlet connector 16 is embedded and installed in the second mounting hole 15. When the end of the glue inlet connector 16 away from the second mounting hole 15 penetrates into the through hole 61 and is squeezed into contact with the sphere 9 in the through hole 61, a gap is formed between the sphere 9 and the slope surface of the inner wall of the through hole 61, so that the glue supply flow channel 3 on the glue supply block 1 and the second mounting hole 15 on the connecting block 2 are connected through the transition flow channel 161 provided on the glue inlet connector 16.

[0026] The upper surface of the material holder 21 is provided with a receiving hole 211 for the glue supply cylinder 10 to be embedded. The receiving hole 211 is connected to the side surface of the material holder 21 facing the three-axis drive mechanism 20. The material holder 21 faces the three-axis drive mechanism 20 and is respectively provided with a stop bar 212 on both sides of the receiving hole 211. When the glue supply cylinder 10 is embedded in the receiving hole 211, the stop bar 212 blocks the contact with the glue supply cylinder 10.

[0027] The glue supply cartridge 10 is embedded and installed in the receiving hole 211 of at least one of the material holders 21 , and the glue supply cartridge 10 is not installed in the receiving hole 211 of at least one of the material holders 21 .

[0028] The outer surface of the glue supply nut 7 is connected to the inner wall of the through hole 61 on the glue supply connector 6 via threads.

[0029] 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 of the glue supply connector 6 .

[0030] The lower end of the obliquely arranged communicating channel 4 is communicated with an end of the horizontally extending glue inlet channel 121 on the glue inlet block 12 that is opposite to the glue outlet channel 122 .

[0031] The second mounting hole 15 is communicated with the upper end of the communication channel 4 .

[0032] The valve body 11 is an injection valve body.

[0033] Example 2: A replacement mechanism for a dispensing device supply cartridge, used for a dispensing unit, the dispensing unit comprising: a supply cartridge 10, a valve body 11 located on one side of the supply cartridge 10, and a glue feed block 12 mounted on the lower end surface of the valve body 11, the glue feed block 12 being provided with a glue feed channel 121 and a glue outlet channel 122 communicating with each other, the replacement mechanism comprising: a three-axis drive mechanism 20 mounted on a machine platform 19, the valve body 11 being mounted on the three-axis drive mechanism 20 0, the glue supply cylinder 10 is connected to the side of the valve body 11 opposite to the three-axis drive mechanism 20, and the machine table 19 is equipped with at least two material seats 21 for placing the glue supply cylinder 10. The lower end of the glue supply cylinder 10 is connected to a glue supply block 1 with a glue supply channel 3 therein, and the side end surface of the glue feed block 12 facing the glue supply block 1 is equipped with a connecting block 2 with a connecting channel 4 therein, and the upper end of the vertical section 31 of the glue supply channel 3 is connected to the glue outlet 101 of the glue supply cylinder 10;

[0034] A first mounting hole 5 is provided on the side surface of the glue supply block 1 facing the connecting block 2, and the lower end of the glue supply channel 3 whose upper end is connected to the glue outlet 101 of the glue supply cylinder 10 is connected to the first mounting hole 5, and one end of a horizontally extending glue supply connector 6 is embedded and installed in the first mounting hole 5, and a through hole 61 is provided on the glue supply connector 6 that passes through in the horizontal direction, and a glue supply nut 7 with a central through hole 71 is installed at one end of the through hole 61 close to the glue supply channel 3, and one end of a spring 8 horizontally arranged in the through hole 61 contacts the end surface of the glue supply nut 7, and a sphere 9 is provided at the other end of the spring 8, and the inner wall of the middle part of the through hole 61 is provided as a slope surface cooperating with the sphere 9, so that the sphere 9 can be squeezed and contacted with the slope surface inclined inwardly in the direction away from the glue supply nut 7 under the action of the spring 8 in the extrusion state;

[0035] A second mounting hole 15 communicating with the communicating flow channel 4 is provided on the side surface of the connecting block 2 facing the glue supply block 1, and one end of a horizontally extending glue inlet connector 16 is embedded and installed in the second mounting hole 15. When the end of the glue inlet connector 16 away from the second mounting hole 15 penetrates into the through hole 61 and is squeezed into contact with the sphere 9 in the through hole 61, a gap is formed between the sphere 9 and the slope surface of the inner wall of the through hole 61, so that the glue supply flow channel 3 on the glue supply block 1 and the second mounting hole 15 on the connecting block 2 are connected through the transition flow channel 161 provided on the glue inlet connector 16.

[0036] The upper surface of the material holder 21 is provided with a receiving hole 211 for the glue supply cylinder 10 to be embedded. The receiving hole 211 is connected to the side surface of the material holder 21 facing the three-axis drive mechanism 20. The material holder 21 faces the three-axis drive mechanism 20 and is respectively provided with a stop bar 212 on both sides of the receiving hole 211. When the glue supply cylinder 10 is embedded in the receiving hole 211, the stop bar 212 blocks the contact with the glue supply cylinder 10.

[0037] The outer surface of the glue supply nut 7 is connected to the inner wall of the through hole 61 on the glue supply connector 6 via threads.

[0038] The lower end of the obliquely arranged communicating channel 4 is communicated with an end of the horizontally extending glue inlet channel 121 on the glue inlet block 12 that is opposite to the glue outlet channel 122 .

[0039] The outer surface of the glue supply connector 6 is connected to the inner wall of the first mounting hole 5 via threads.

[0040] The glue outlet 101 at the lower end of the glue supply cylinder 10 is connected to the glue supply channel 3 on the glue supply block 1 through a connecting nozzle 13 .

[0041] The valve body 11 is a piezoelectric ceramic injection valve body.

[0042] A sealing ring is provided between the connection block 2 and the glue feeding block 12 and on the outside of the connection between the communication channel 4 and the glue feeding channel 121 .

[0043] Under normal dispensing conditions, the three-axis drive mechanism drives the valve body connected to the glue supply cylinder to move above the product to be dispensed. At the same time, the glue supply cylinder supplies glue to the valve body, and the valve body accurately and quantitatively dispenses glue, realizing continuous dispensing of the product.

[0044] When the glue in the glue cylinder is used up, the valve body stops;

[0045] Next, the three-axis drive mechanism drives the valve body to move, causing the old glue supply cylinder connected to the valve body to move into an empty material seat. Then, the three-axis drive mechanism drives the valve body away from the old glue supply cylinder. At this time, the old glue supply cylinder is restricted by the material seat and cannot move with the valve body, thereby separating the glue supply block from the connection block, and the glue feed connector from the ball. During this process, the ball, under the action of the spring, is squeezed into contact with the sloped surface of the inner wall of the through hole to quickly cut off the entire glue supply flow channel.

[0046] Afterwards, the three-axis drive mechanism drives the valve body to move to the outside of the new glue supply cylinder installed in another material seat, and connects the glue supply block with the connecting block. The glue supply connector penetrates into the through hole on the glue supply connector and is squeezed into contact with the ball. The ball moves toward the spring direction under the push of the glue supply connector and squeezes the spring, thereby forming a gap between the ball and the slope surface of the inner wall of the through hole to connect the transition flow channel and the glue supply flow channel on the glue supply block, thereby realizing rapid connection between the glue supply block on the new glue supply cylinder and the internal glue flow channel of the glue supply block on the valve body, and the valve body restarts the dispensing operation.

[0047] When the above-mentioned dispensing device glue supply cylinder replacement mechanism is adopted, it can automatically place the old glue supply cylinder connected to the valve body in the accommodating hole of the material seat and separate it from the valve body through the movement of the three-axis mechanism, and then connect the valve body to the new glue supply cylinder in another material seat, thereby realizing automatic and continuous operation of the glue dispensing process and improving the efficiency of glue dispensing. When the valve body is separated from the old glue supply cylinder, the first sphere in the glue supply connector that is in compression contact with the first spring blocks the through hole, thereby avoiding overflow of residual glue in the glue cylinder and reducing glue waste.

[0048] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with 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 based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A dispensing device for replacing a glue cartridge, used in a dispensing unit, the dispensing unit comprising: A glue supply cylinder (10), a valve body (11) located on one side of the glue supply cylinder (10), and a glue feed block (12) installed on the lower end surface of the valve body (11), wherein the glue feed block (12) is respectively provided with a glue feed flow channel (121) and a glue discharge flow channel (122) that are interconnected. The replacement mechanism comprises: a three-axis drive mechanism (20) installed on a machine platform (19), the valve body (11) is installed on the three-axis drive mechanism (20), the glue supply cylinder (10) is connected to the valve body (11) opposite to the three-axis drive mechanism On one side of the driving mechanism (20), it is characterized in that: at least two material seats (21) for placing the glue supply cylinder (10) are installed on the machine table (19), the lower end of the glue supply cylinder (10) is connected to a glue supply block (1) with a glue supply flow channel (3) therein, and a connecting block (2) with a connecting flow channel (4) therein is installed on the side end surface of the glue feed block (12) facing one end of the glue supply block (1), and the upper end of the vertical section (31) of the glue supply flow channel (3) is connected to the glue outlet (101) of the glue supply cylinder (10); The glue supply block (1) is provided with a first mounting hole (5) on the side surface facing the connecting block (2), the glue supply channel (3) whose upper end is connected to the glue outlet (101) of the glue supply cylinder (10) is connected to the first mounting hole (5) at its lower end, and a horizontally extending glue supply connector (6) is embedded in the first mounting hole (5) at one end, and the glue supply connector (6) is provided with a through hole (61) extending in the horizontal direction, and the through hole (61) is arranged near one end of the glue supply channel (3). A glue supply nut (7) having a central through hole (71) is provided, one end of a spring (8) horizontally arranged in the through hole (61) contacts the end face of the glue supply nut (7), a sphere (9) is provided at the other end of the spring (8), and an inner wall of the middle portion of the through hole (61) is provided as a slope surface cooperating with the sphere (9), so that the sphere (9) can be pressed and contacted with the slope surface inclined inwardly in a direction away from the glue supply nut (7) under the action of the spring (8) in a squeezed state; A second mounting hole (15) communicating with the communicating flow channel (4) is provided on the side surface of the connecting block (2) facing the glue supply block (1), and one end of a horizontally extending glue feed connector (16) is embedded and installed in the second mounting hole (15). When the end of the glue feed connector (16) away from the second mounting hole (15) penetrates into the through hole (61) and is pressed into contact with the ball (9) in the through hole (61), a gap is formed between the ball (9) and the slope surface of the inner wall of the through hole (61), so that the glue supply flow channel (3) on the glue supply block (1) and the second mounting hole (15) on the connecting block (2) are communicated through the transition flow channel (161) provided on the glue feed connector (16).

2. The replacement mechanism for the glue supply cylinder of the glue dispensing device according to claim 1, characterized in that: The upper surface of the material seat (21) is provided with a receiving hole (211) for the glue supply cylinder (10) to be embedded. The receiving hole (211) is connected to the side surface of the material seat (21) facing the three-axis drive mechanism (20). A blocking bar (212) is installed on the side of the material seat (21) facing the three-axis drive mechanism (20) and on both sides of the receiving hole (211). When the glue supply cylinder (10) is embedded in the receiving hole (211), the blocking bar (212) blocks the contact with the glue supply cylinder (10).

3. The replacement mechanism for the glue supply cylinder of the glue dispensing device according to claim 1, characterized in that: The outer surface of the glue supply nut (7) is connected to the inner wall of the through hole (61) on the glue supply connector (6) via a threaded connection.

4. The replacement mechanism for the glue supply cylinder of the glue dispensing device according to claim 1, characterized in that: 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).

5. The replacement mechanism for the glue supply cylinder of the glue dispensing device according to claim 1, characterized in that: The lower end of the inclined connecting flow channel (4) is connected to an end of the glue inlet flow channel (121) extending horizontally on the glue inlet block (12) that is opposite to the glue outlet flow channel (122).

6. The replacement mechanism for the glue supply cylinder of the glue dispensing device according to claim 2, characterized in that: The second mounting hole (15) is in communication with the upper end of the communication channel (4).

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