High-precision two-component dispensing device

Abstract

The utility model discloses a high-precision two-component dispensing device which comprises a glue mixing and dispensing valve provided with a glue A inlet and a glue B inlet respectively, a glue outlet formed in the upper end of a glue barrel is connected with the glue inlets through a pipeline, and a glue A cylinder and a glue B cylinder which correspond to the glue A barrel and the glue B barrel respectively are arranged in a shell. A movable block A and a movable block B which can move in the vertical direction are installed at the upper ends of piston rods of the vertically-arranged A glue air cylinder and the vertically-arranged B glue air cylinder respectively, the lower end of an A glue push rod coaxial with the A glue barrel is connected with the A movable block, and the upper end of the vertically-extending A glue push rod penetrates through the top plate of the shell and is provided with an A glue push disc embedded into the A glue barrel from the lower end. According to the glue supply and dispensing device, the glue supply amount and the glue dispensing amount are adjusted, the quality of glue output after two-component glue liquid is mixed by the glue valve is improved, meanwhile, the position degree of the movable block in the vertical direction can be guaranteed, position deflection is avoided, and the display precision of the liquid level in the glue barrel is improved.

Description

Technical Field

[0001] This utility model relates to a high-precision two-component dispensing device, and in particular to a dispensing mechanism. Background Technology

[0002] A dispensing machine, also known as an adhesive applicator, glue applicator, or glue applicator, is primarily used to control fluids and apply them dropwise or onto the surface or interior of a product. Dispensing machines are mainly used for precisely dispensing, injecting, coating, or dripping adhesives, paints, and other liquids onto precise locations on each product during manufacturing processes. They are typically directly connected to the adhesive supply mechanism. For two-component dispensing, the amount of adhesive (A and B) entering the glue gun determines the mixing ratio. Smaller dispensing ratios have a larger tolerance for error, while larger ratios (50:1, 40:1, etc.) have a smaller tolerance. Currently, dispensing devices cannot provide feedback on changes in the liquid level within the glue container during two-component dispensing, thus making it impossible to control the dispensing volume and ratio, easily leading to adhesive imbalances. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a high-precision two-component dispensing device. This high-precision two-component dispensing device can provide real-time feedback on changes in the liquid level in the glue tank and adjust the glue supply and dispensing volume to improve the quality of the glue dispensing.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a high-precision two-component dispensing device, comprising: a mixing dispensing valve having an A-component inlet and a B-component inlet respectively; an A-component container and a B-component container; an A-component outlet located at the upper end of the A-component container being connected to the A-component inlet via a pipe; and a B-component outlet located at the upper end of the B-component container being connected to the B-component inlet via a pipe. The A-component container and the B-component container are arranged side by side on the upper surface of a housing top plate. The housing contains an A-component cylinder and a B-component cylinder corresponding to the A-component container and the B-component container respectively. The cylinders are vertically arranged, and the upper ends of the piston rods of the A-type glue cylinder and the B-type glue cylinder are respectively equipped with A movable blocks and B movable blocks that can move in the vertical direction. The lower end of the A-type glue push rod, which is coaxial with the A-type glue barrel, is connected to the A movable block. The upper end of the vertically extending A-type glue push rod passes through the top plate of the housing and is equipped with an A-type glue push plate that is embedded in the A-type glue barrel from the bottom. The lower end of the B-type glue push rod, which is coaxial with the B-type glue barrel, is connected to the B movable block. The upper end of the vertically extending B-type glue push rod passes through the top plate of the housing and is equipped with a B-type glue push plate that is embedded in the B-type glue barrel from the bottom.

[0005] The other ends of the A movable block and the B movable block, which are connected at one end to the piston rods of the A glue cylinder and the B glue cylinder, respectively, extend towards the front side plate of the housing. The front side plate of the housing has vertically extending A-shaped holes and B-shaped holes. An A indicator block located on the outside of the front side plate of the housing is connected to the end face of the A movable block away from the piston rod of the A glue cylinder via a pin passing through the A-shaped hole. A B indicator block located on the outside of the front side plate of the housing is connected to the end face of the B movable block away from the piston rod of the B glue cylinder via a pin passing through the B-shaped hole. Both the A and B indicator blocks have an indicator portion. An indicator barcode that mates with the indicator portion is provided on the front surface of the front side plate of the housing. Each of the A and B movable blocks has a magnetic grid installed. Magnetic strips that mate with the two magnetic grids are installed on the inner wall of the housing. The magnetic grids are communicatively connected to the drive assembly of the dispensing valve.

[0006] The following are further improvements to the above technical solution:

[0007] 1. In the above scheme, the dispensing valve for mixing adhesive is a two-component screw valve.

[0008] 2. In the above scheme, the two magnetic gratings are respectively connected to the A-component drive motor and the B-component drive motor of the two-component screw valve, and the A-component drive motor and the B-component drive motor adjust their speed according to the data signal from the corresponding magnetic grating.

[0009] 3. In the above scheme, the indicator parts are arranged facing each other on opposite sides of indicator block A and indicator block B.

[0010] 4. In the above scheme, a support rod is connected between the top plate and the bottom plate of the shell. A guide rail is installed on the surface of the support rod located between movable block A and movable block B on the side facing movable block A and movable block B respectively. Movable block A and movable block B are each slidably engaged with the corresponding guide rail through at least one slider.

[0011] 5. In the above scheme, the vertically extending guide rail is disposed above the body of the A-type cylinder and the B-type cylinder.

[0012] 6. In the above scheme, a stop block that cooperates with the slider is provided below the guide rail.

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

[0014] This utility model relates to a high-precision two-component dispensing device. An A-component outlet located at the top of the A-component container is connected to an A-component inlet via a pipe. A B-component outlet located at the top of the B-component container is connected to a B-component inlet via a pipe. An A-movable block and a B-movable block, each connected at one end to the piston rods of the A-component and B-component cylinders respectively, extend towards the front side plate of the housing. The front side plate of the housing has vertically extending A-strip holes and B-strip holes. An A-indicator block located on the outer side of the front side plate is connected to the end face of the A-movable block away from the piston rod of the A-component cylinder via a pin passing through the A-strip hole. Similarly, a B-indicator block located on the outer side of the front side plate is connected to the end face of the B-movable block away from the piston rod of the B-component cylinder via a pin passing through the B-strip hole. Both the A-indicator block and the B-indicator block have an indicating part. An indicator barcode cooperating with the indicating part is provided on the front surface of the front side plate of the housing. Each movable block is equipped with a magnetic grating, and magnetic strips that cooperate with the two magnetic gratings are installed on the inner wall of the housing. The magnetic gratings are communicatively connected to the drive component of the dispensing valve, allowing real-time feedback on changes in the liquid level in the glue tank during the glue supply process. The electrical signal of the liquid level change is also fed back to the dispensing valve, enabling timely adjustment of the glue supply and dispensing volume. This prevents imbalances in the two-component glue ratio and improves the quality of the glue dispensed after mixing. Furthermore, a support rod connects the top and bottom plates of the housing. Guide rails are installed on the surfaces of the support rod facing movable blocks A and B, respectively. Each movable block A and B slides along its corresponding guide rail via at least one slider, ensuring accurate positioning during vertical reciprocating movement and preventing positional deviation, thus improving the accuracy of the glue tank level display. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the overall structure of the high-precision two-component dispensing device of this utility model;

[0016] Appendix Figure 2 This is a schematic diagram of the adhesive supply section of the high-precision two-component dispensing device of this utility model.

[0017] Appendix Figure 3 This is a diagram showing the internal structure of the adhesive supply section of the high-precision two-component dispensing device of this utility model.

[0018] Appendix Figure 4 This is a partial enlarged schematic diagram of the adhesive supply section of the two-component dispensing device of this utility model;

[0019] Appendix Figure 5 This is a cross-sectional schematic diagram of the adhesive supply section of the high-precision two-component dispensing device of this utility model.

[0020] In the attached diagrams: 1. Housing; 101. Top plate; 102. Bottom plate; 103. Front side plate; 104. Receiving groove; 21. A-adhesive bucket; 22. B-adhesive bucket; 31. A-adhesive cylinder; 32. B-adhesive cylinder; 41. A-adhesive block; 42. B-adhesive block; 51. A-adhesive push rod; 52. B-adhesive push rod; 61. A-adhesive push plate; 62. B-adhesive push plate; 71. A-adhesive strip hole; 72. B-adhesive strip hole; 81. A-adhesive block; 82. B-adhesive block; 9. Pin; 10. Indicator section; 11. Indicator barcode; 12. Support rod; 13. Guide rail; 14. Slider; 15. Stop block; 16. A-adhesive inlet; 17. B-adhesive inlet; 18. Mixing and dispensing valve; 19. Magnetic grid. Detailed Implementation

[0021] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0022] Example 1: A high-precision two-component dispensing device, comprising: a mixing dispensing valve 18 having an A-component inlet 16 and a B-component inlet 17 respectively; an A-component container 21; and a B-component container 22. An A-component outlet located at the upper end of the A-component container 21 is connected to the A-component inlet 16 via a pipe, and a B-component outlet located at the upper end of the B-component container 22 is connected to...

[0023] The pipe connects to the B glue inlet 17, and the A glue tank 21 and B glue tank 22 are arranged side by side on the upper surface of the top plate 101 of a housing 1. Inside the housing 1, there are A glue cylinders 31 and B glue cylinders 32 corresponding to the A glue tank 21 and B glue tank 22, respectively. The upper ends of the piston rods of each of the vertically arranged A glue cylinder 31 and B glue cylinder 32 are respectively equipped with A movable blocks 41 and B movable blocks 42 that can move vertically. A cylinder is coaxially arranged with the A glue tank 21. The lower end of the A glue push rod 51 is connected to the A movable block 41. The upper end of the vertically extending A glue push rod 51 passes through the top plate 101 of the housing 1 and is equipped with an A glue push plate 61 that is embedded in the A glue bucket 21 from the lower end. The lower end of a B glue push rod 52, which is coaxially arranged with the B glue bucket 22, is connected to the B movable block 42. The upper end of the vertically extending B glue push rod 52 passes through the top plate 101 of the housing 1 and is equipped with a B glue push plate 62 that is embedded in the B glue bucket 21 from the lower end.

[0024] The other ends of the movable blocks A and B, which are connected at one end to the piston rods of the A-glue cylinder 31 and the B-glue cylinder 32, respectively extend toward the front side plate 103 of the housing 1. The front side plate 103 of the housing 1 has vertically extending A-strip holes 71 and B-strip holes 72. An A-indicator block 81 located on the outside of the front side plate 103 of the housing 1 is connected to the end face of the movable block A 41 away from the piston rod of the A-glue cylinder 31 via a pin 9 passing through the A-strip hole 71. A B-indicator block 8... 2. A pin 9 passing through the B strip hole 72 is connected to the end face of the B movable block 42 away from the piston rod of the B glue cylinder 32. Both the A indicator block 81 and the B indicator block 82 have an indicator part 10. The front surface of the front side plate 103 of the housing 1 is provided with an indicator barcode 11 that cooperates with the indicator part 10. Each of the A movable block 41 and the B movable block 42 is equipped with a magnetic grid 19. Magnetic strips that cooperate with the two magnetic grids 19 are respectively installed on the inner wall of the housing 1. The magnetic grids 19 are communicatively connected to the drive assembly of the glue dispensing valve 18.

[0025] In use, the pusher plate is embedded in the glue bucket, and the glue outlet is connected to the glue inlet of the mixing glue dispensing valve through the pipe. When the glue supply starts, the piston rods of cylinders AB move upward at the same time, driving the pusher plate to push the glue outlet to the glue inlet of the mixing glue dispensing valve, and then dispensing a quantitative amount of glue outward through the mixing glue outlet at the lower end of the mixing glue dispensing valve.

[0026] The two magnetic gratings are respectively connected to the A-component drive motor and the B-component drive motor of the two-component screw valve. The A-component drive motor and the B-component drive motor adjust their speeds according to the data signals from the corresponding magnetic gratings.

[0027] A support rod is connected between the top plate and the bottom plate of the aforementioned housing. A guide rail is installed on the surface of the support rod, which is located between movable block A and movable block B, on the side facing movable block A and movable block B respectively. Movable block A and movable block B are each slidably engaged with the corresponding guide rail by at least one slider.

[0028] The aforementioned A-glue cylinder 31 and B-glue cylinder 32 are arranged side by side on the upper surface of the bottom plate 102 of the housing 1.

[0029] The upper surface of the top plate 101 of the housing 1 is provided with receiving grooves 104 for the A glue pusher 61 and the B glue pusher 62 to be embedded, so that when the piston rods of the A glue cylinder 31 and the B glue cylinder 32 are in the retracted state, the upper surfaces of the A glue pusher 61 and the B glue pusher 62 are flush with the upper surface of the top plate 101 of the housing 1.

[0030] The aforementioned A-plastic pusher 61 and B-plastic pusher 62 are respectively sealed to the inner walls of the A-plastic bucket 21 and the B-plastic bucket 22; the inner diameter of the A-plastic bucket 21 is larger than the inner diameter of the B-plastic bucket 22.

[0031] Example 2: A high-precision two-component dispensing device, comprising: a mixing dispensing valve 18 having an A-component inlet 16 and a B-component inlet 17 respectively; an A-component tank 21 and a B-component tank 22; an A-component outlet located at the upper end of the A-component tank 21 connected to the A-component inlet 16 via a pipe; and a B-component outlet located at the upper end of the B-component tank 22 connected to the B-component inlet 17 via a pipe. The A-component tank 21 and the B-component tank 22 are arranged side by side on the upper surface of a housing 1 top plate 101. The housing 1 contains an A-component cylinder 31 and a B-component cylinder 32 corresponding to the A-component tank 21 and the B-component tank 22 respectively. The A-component cylinder 31 is vertically arranged... The upper ends of the piston rods of cylinders 31 and 32 are respectively equipped with movable blocks 41 and 42, which can move vertically. The lower end of an A-plastic push rod 51, which is coaxial with the A-plastic barrel 21, is connected to the movable block 41. The upper end of the vertically extending A-plastic push rod 51 passes through the top plate 101 of the housing 1 and is equipped with an A-plastic push plate 61 that is embedded in the A-plastic barrel 21 from the bottom. The lower end of a B-plastic push rod 52, which is coaxial with the B-plastic barrel 22, is connected to the movable block 42. The upper end of the vertically extending B-plastic push rod 52 passes through the top plate 101 of the housing 1 and is equipped with a B-plastic push plate 62 that is embedded in the B-plastic barrel 21 from the bottom.

[0032] The other ends of the movable blocks A and B, which are connected at one end to the piston rods of the A-glue cylinder 31 and the B-glue cylinder 32, respectively extend toward the front side plate 103 of the housing 1. The front side plate 103 of the housing 1 has vertically extending A-strip holes 71 and B-strip holes 72. An A-indicator block 81 located on the outside of the front side plate 103 of the housing 1 is connected to the end face of the movable block A 41 away from the piston rod of the A-glue cylinder 31 via a pin 9 passing through the A-strip hole 71. A B-indicator block 8... 2. A pin 9 passing through the B strip hole 72 is connected to the end face of the B movable block 42 away from the piston rod of the B glue cylinder 32. Both the A indicator block 81 and the B indicator block 82 have an indicator part 10. The front surface of the front side plate 103 of the housing 1 is provided with an indicator barcode 11 that cooperates with the indicator part 10. Each of the A movable block 41 and the B movable block 42 is equipped with a magnetic grid 19. Magnetic strips that cooperate with the two magnetic grids 19 are respectively installed on the inner wall of the housing 1. The magnetic grids 19 are communicatively connected to the drive assembly of the glue dispensing valve 18.

[0033] The indicator section connected to the indicator block on the outside of the housing works in conjunction with the indicator barcode to visually display changes in the adhesive liquid level, facilitating manual detection and control. Simultaneously, through the cooperation of the magnetic grating and the stationary magnetic strip, the data signal of the liquid level change can be sent to the drive mechanism of the dispensing valve to control the dispensing volume. Ultimately, this enables timely adjustment of the dispensing volume, avoiding imbalances in the two-component adhesive ratio and improving the quality of the final mixed adhesive.

[0034] The above-mentioned dispensing valve is a two-component screw valve; the two indicator sections are arranged facing each other on opposite sides of indicator block A and indicator block B.

[0035] The vertically extending guide rails are positioned above the main bodies of the A-type and B-type cylinders; each guide rail has a stop block below it that cooperates with the slider.

[0036] The working principle of this utility model is as follows:

[0037] In use, first install the A-glue bucket and the B-glue bucket onto the top plate of the housing, so that the A-glue pusher can be inserted into the A-glue bucket and the B-glue pusher can be inserted into the B-glue bucket. The A-glue bucket and the B-glue bucket are generally 490ml, 200ml and 250ml in volume, respectively. At the same time, connect the glue outlet at the top of the A-glue bucket to the A-glue inlet of the mixing and dispensing valve through a pipe, and connect the glue outlet at the top of the B-glue bucket to the B-glue inlet of the mixing and dispensing valve through a pipe.

[0038] In the initial state, the piston rods of both the A-glue cylinder and the B-glue cylinder are in the retracted state. When glue supply begins, the piston rods of the A-glue cylinder and the B-glue cylinder move upward simultaneously, driving the A-glue push rod and the B-glue push rod to move upward respectively. This further drives the A-glue push plate and the B-glue push plate to move upward respectively, pushing the A-glue liquid and B-glue liquid in the A-glue bucket and the B-glue bucket from their respective upper glue outlets to the A-glue inlet and the B-glue inlet of the mixing glue dispensing valve, and then dispensing a quantitative amount of glue outward through the mixing glue outlet at the lower end of the mixing glue dispensing valve.

[0039] At the same time, indicator blocks A and B also move upward synchronously with the piston rods of cylinders A and B. Through the cooperation of the guide rail and the slider, indicator blocks A and B can only move in the vertical direction without producing additional deflection.

[0040] By using two indicator sections located on the outside of the housing and connected to indicator blocks A and B, along with indicator barcodes, the changes in the glue level in glue containers A and B are displayed intuitively, facilitating manual monitoring and control. Simultaneously, through the interaction of a magnetic grating that moves with indicator blocks A and B and a stationary magnetic strip, data signals showing the changes in the glue level in glue containers A and B are generated and sent to the drive mechanism of the mixing and dispensing valve. The mixing and dispensing valve adjusts the drive mechanism (such as the speed of a servo motor) based on the received signals to control and regulate the glue dispensing volume.

[0041] When using the aforementioned high-precision two-component dispensing device, it can provide real-time feedback on changes in the liquid level in the glue tank during the glue supply process to the dispensing valve. It can also feed back the electrical signal of the liquid level change in the glue tank to the dispensing valve, thereby enabling timely adjustment of the glue supply and dispensing volume, avoiding imbalance in the two-component glue ratio, and improving the quality of the glue dispensed after mixing the two-component glue. In addition, it can ensure the positional accuracy of the moving block during reciprocating movement in the vertical direction, preventing positional deviation and improving the display accuracy of the liquid level in the glue tank.

[0042] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high-precision two-component dispensing device, comprising: The assembly comprises a mixing and dispensing valve (18) having an A-glue inlet (16) and a B-glue inlet (17), an A-glue container (21), and a B-glue container (22), respectively. An A-glue outlet located at the upper end of the A-glue container (21) is connected to the A-glue inlet (16) via a pipe, and a B-glue outlet located at the upper end of the B-glue container (22) is connected to the B-glue inlet (17) via a pipe. The assembly is characterized in that: the A-glue container (21) and the B-glue container (22) are arranged side-by-side on the upper surface of the top plate (101) of a housing (1). The housing (1) contains an A-glue cylinder (31) and a B-glue cylinder (32) corresponding to the A-glue container (21) and the B-glue container (22), respectively. The A-glue cylinder (31) and the B-glue cylinder are arranged vertically. (32) Each piston rod is equipped with an A movable block (41) and a B movable block (42) that can move vertically. The lower end of an A glue push rod (51) coaxially arranged with the A glue bucket (21) is connected to the A movable block (41). The upper end of the vertically extending A glue push rod (51) passes through the top plate (101) of the housing (1) and is equipped with an A glue push plate (61) embedded in the A glue bucket (21) from the lower end. The lower end of a B glue push rod (52) coaxially arranged with the B glue bucket (22) is connected to the B movable block (42). The upper end of the vertically extending B glue push rod (52) passes through the top plate (101) of the housing (1) and is equipped with a B glue push plate (62) embedded in the B glue bucket (22) from the lower end. The other ends of the movable blocks A (41) and B (42), which are connected at one end to the piston rods of the A-type cylinder (31) and the B-type cylinder (32), extend toward the front side plate (103) of the housing (1). The front side plate (103) of the housing (1) is provided with vertically extending A-shaped holes (71) and B-shaped holes (72). An A-indicator block (81) located on the outside of the front side plate (103) of the housing (1) is connected to the end face of the movable block A (41) away from the piston rod of the A-type cylinder (31) via a pin (9) passing through the A-shaped hole (71). A B-indicator block (81) located on the outside of the front side plate (103) of the housing (1)... 82) The pin (9) passing through the B strip hole (72) is connected to the end face of the B movable block (42) away from the piston rod of the B glue cylinder (32). The A indicator block (81) and the B indicator block (82) each have an indicator part (10). The front side surface of the front side plate (103) of the housing (1) is provided with an indicator barcode (11) that cooperates with the indicator part (10). The A movable block (41) and the B movable block (42) are each equipped with a magnetic grid (19). The inner wall of the housing (1) is respectively equipped with magnetic strips that cooperate with the two magnetic grids (19). The magnetic grids (19) are communicatively connected to the drive assembly of the glue dispensing valve (18).

2. The high-precision two-component dispensing device according to claim 1, characterized in that: The dispensing valve (18) is a two-component screw valve.

3. The high-precision two-component dispensing device according to claim 2, characterized in that: The two magnetic grids (19) are respectively connected to the A-component drive motor and the B-component drive motor of the two-component screw valve. The A-component drive motor and the B-component drive motor adjust their speed according to the data signal from the corresponding magnetic grid (19).

4. The high-precision two-component dispensing device according to claim 1, characterized in that: The two indicator parts (10) are arranged facing each other on opposite sides of indicator block A (81) and indicator block B (82).

5. The high-precision two-component dispensing device according to claim 1, characterized in that: A support rod (12) is connected between the top plate (101) and the bottom plate (102) of the housing (1). A guide rail (13) is installed on the surface of the support rod (12) between the A movable block (41) and the B movable block (42) respectively facing the A movable block (41) and the B movable block (42). The A movable block (41) and the B movable block (42) are each slidably engaged with the corresponding guide rail (13) through at least one slider (14).

6. The high-precision two-component dispensing device according to claim 5, characterized in that: The vertically extending guide rail (13) is positioned above the main body of the A-type cylinder (31) and the B-type cylinder (32).

7. The high-precision two-component dispensing device according to claim 5 or 6, characterized in that: Each of the guide rails (13) is provided with a stop block (15) that cooperates with the slider (14) below it.

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