Dispensing valve nozzle cleaning mechanism

Abstract

The utility model relates to the technical field of dispensing valves, in particular to a dispensing valve nozzle cleaning mechanism which comprises a cleaning box, a wiping piece and a peristaltic pump, a transverse partition plate is arranged in a containing cavity to divide the containing cavity into an upper cavity body and a lower cavity body, and a longitudinal partition plate is arranged in the upper cavity body to divide the upper cavity body into a working cavity body and a backflow cavity body. A spray head is arranged between the working cavity and the lower cavity, the backflow cavity is communicated with the lower cavity, the wiping piece is fixed in the working cavity and can absorb cleaning liquid in the working cavity, and the upper surface of the wiping piece extends out of the working cavity to form a working surface for wiping the nozzle; according to the cleaning device, the peristaltic pump is used for conveying the cleaning liquid to the cleaning box, the cleaning liquid is sprayed into the working cavity through the spray head so as to be absorbed by the wiping piece, then the nozzle is cleaned, the remaining cleaning liquid flows back to the peristaltic pump to form cleaning liquid circulation, and therefore the wet state of the wiping piece is kept so that cleaning work can be conducted at any time; the whole device is simple in structure and low in cost, and repeated utilization of the cleaning liquid is achieved through the peristaltic pump.

Description

TECHNICAL FIELD

[0001] The utility model relates to point to the technical field of glue valve, especially to a kind of point to glue valve nozzle cleaning mechanism. BACKGROUND

[0002] When point to glue valve dispenses glue, glue solution in valve cavity is sprayed on product by nozzle, and after long-term work, nozzle will appear the phenomenon of glue hanging or blocking, glue hanging can affect dispensing accuracy, and then affect product quality, and glue blocking needs to replace nozzle, with higher cost and affect dispensing progress, thus nozzle needs to be cleaned regularly to remove glue solution thereon.

[0003] Chinese patent with application No.CN202221507200.2 discloses a kind of point to glue valve needle cleaning mechanism, it includes material wheel material wheel, first guide wheel, step motor, drive module, jaw cylinder, sponge and several second guide wheels, first, the external point to glue valve needle that needs to be cleaned is moved to the upside of the inboard of two sponges, the external point to glue valve needle is moved to the inboard of two sponges by tightly pressing cleaning cloth, drive cylinder drives first guide wheel to move upwards to make cleaning cloth be in slack state, the drive module drives cleaning cloth to rotate to wipe off residual glue on point to glue valve needle, the whole device needs to use multiple motors and cylinders to operate, with complex structure and higher cost. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems that the point to glue valve needle cleaning mechanism in prior art uses multiple motors and cylinders to operate, with complex structure and higher cost, and provides a kind of point to glue valve nozzle cleaning mechanism.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a kind of point to glue valve nozzle cleaning mechanism, including:

[0006] Cleaning tank, its inside is formed with the accommodating cavity for accommodating cleaning fluid, the accommodating cavity is equipped with horizontal baffle to divide accommodating cavity into upper chamber and lower chamber, the upper chamber is equipped with longitudinal baffle to divide upper chamber into working cavity and reflux cavity that are interconnected, the working cavity and lower chamber are equipped with spray head for sending cleaning fluid into working cavity, the reflux cavity is communicated with lower chamber:

[0007] Wiping member, it is fixed in working cavity and can absorb cleaning fluid in working cavity, and its upper surface extends working cavity to form working surface for wiping nozzle;

[0008] And peristaltic pump, first port is communicated with spray head, and second port is communicated with lower chamber.

[0009] Further, the sponge comprises a soaking part in the working cavity and a working part extending out of the working cavity, the working surface is located on the working part, the cross-sectional area of the soaking part is larger than that of the working part to form a limiting step therebetween, and a cover plate is arranged on the limiting step.

[0010] Further, one end of the cover plate is hingedly connected to the cleaning tank, and the other end is bent towards the cleaning tank to form a locking block for threaded connection with the cleaning tank.

[0011] Further, the cleaning tank comprises an upper tank body and a lower tank body arranged in a vertical manner, and the bottom wall of the upper tank body is formed as the transverse partition plate.

[0012] Further, the transverse partition plate is provided with an upper mounting hole for mounting the spray head, and the bottom wall of the cleaning tank is provided with a lower mounting hole for mounting the spray head, and an upper sealing member is arranged between the upper mounting hole and the spray head, and a lower sealing member is arranged between the lower mounting hole and the spray head.

[0013] Further, the inner bottom wall of the upper tank body is protruded to form a plurality of convex strips.

[0014] The cleaning liquid is delivered to the cleaning tank by the peristaltic pump, sprayed in the working cavity by the spray head for absorption by the wiping member, and then the spray nozzle is cleaned, and the remaining cleaning liquid is returned to the peristaltic pump to form a cleaning liquid circulation, so that the wiping member is kept in a wet state for cleaning work at any time, the whole device has a simple structure and low cost, and the peristaltic pump is used to realize the reuse of the cleaning liquid. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model is further described below in combination with the drawings and examples.

[0016] Figure 1 is the three-dimensional schematic view of the utility model;

[0017] Figure 2 is the sectional view of the cleaning tank;

[0018] Figure 3 is the three-dimensional schematic view of the upper tank body;

[0019] Figure 4 is the structural schematic view of the utility model installed on the point gum platform;

[0020] In the drawings:

[0021] 1, cleaning tank; 101, transverse partition plate; 102, lower cavity; 103, longitudinal partition plate; 104, working cavity; 105, return cavity; 106, upper tank body; 107, lower tank body; 108, upper mounting hole; 109, lower mounting hole; 110, convex strip; 111, first communication hole; 112, second communication hole;

[0022] 2. Spray nozzle;

[0023] 3. Wiping component; 301. Immersion section; 302. Working section; 3021. Working surface;

[0024] 4. Peristaltic pump;

[0025] 5. Dispensing valve; 501. Nozzle;

[0026] 6. Dispensing platform;

[0027] 7. Cover plate; 701. Locking block;

[0028] 8. Upper sealing element;

[0029] 9. Bolts.

[0030] 10. Lower seal. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components relevant to the present invention. Orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0032] like Figure 4 As shown, a dispensing valve nozzle cleaning mechanism is provided. The dispensing valve 5 is installed on the dispensing platform 6 and can move in three dimensions to dispense glue to the products on the conveyor line. The cleaning mechanism is also installed on the dispensing platform 6. When the nozzle 501 has glue residue, it can be moved to the cleaning mechanism position for cleaning. The cleaning mechanism includes a cleaning box 1, a wiping component 3 and a peristaltic pump 4.

[0033] The cleaning tank 1 has an internal cavity for holding cleaning fluid. The cleaning fluid can be, but is not limited to, solutions that can dissolve adhesives, such as alcohol. A transverse partition 101 divides the cavity into an upper chamber and a lower chamber 102. A longitudinal partition 103 divides the upper chamber into a working chamber 104 and a return chamber 105, which are interconnected. Specifically, the longitudinal partition 103 has a first flow hole 111 connecting the working chamber 104 and the return chamber 105. The height of the return chamber 105 is less than the height of the working chamber 104. A nozzle 2 for delivering cleaning fluid into the working chamber 104 is located between the working chamber 104 and the lower chamber 102. The return chamber 105 is connected to the lower chamber 102. The transverse partition 101 has a second connecting hole 112 connecting the two chambers.

[0034] A wiping member 3 is fixed in the working cavity 104 and can absorb the cleaning liquid in the working cavity 104, and the upper surface of the wiping member 3 extends out of the working cavity 104 to form a working surface 3021 for wiping the nozzle 501, and the wiping member 3 can be a sponge.

[0035] A peristaltic pump 4 is fixed on the cleaning tank 1 by a first bracket and is fixed on the dispensing platform 6 by a second bracket, and a first port of the peristaltic pump 4 is communicated with the nozzle 2 through a hose, and a second port of the peristaltic pump 4 is communicated with the lower chamber 102 through a hose (both hoses are not shown).

[0036] The peristaltic pump 4 sends the cleaning liquid from the first port thereof to the nozzle 2, the nozzle 2 sprays the cleaning liquid in the working cavity 104, the wiping member 3 is soaked in the cleaning liquid and can absorb the cleaning liquid, the remaining cleaning liquid enters the lower chamber 102 through the backflow cavity 105, and then enters the second port of the peristaltic pump 4 to form a circulation, so as to keep the wiping member 3 in a wet state for cleaning work at any time, when the nozzle 501 of the dispensing valve 5 appears to be stuck with glue, the dispensing valve 5 moves above the wiping member 3 and moves downward to contact the nozzle 501 with the wiping member 3 to clean the nozzle 501.

[0037] In some examples, the wiping member 3 includes a soaking portion 301 located in the working cavity 104 and a working portion 302 extending out of the working cavity 104, the working surface 3021 is located on the working portion 302, the cross-sectional area of the soaking portion 301 is greater than that of the working portion 302 to form a limiting step therebetween, the limiting step is provided with a cover plate 7, the wiping member 3 is in a T-shaped structure, the cover plate 7 is provided with a through hole for the working portion 302 to pass through, the cover plate 7 covers the limiting step to limit the wiping member 3, the soaking portion 301 is soaked in the cleaning liquid in the working cavity 104 to absorb the cleaning liquid, and the working portion 302 extends out of the through hole to wipe the nozzle 501.

[0038] In some examples, one end of the cover plate 7 is hingedly connected to the cleaning tank 1, the other end is bent towards the cleaning tank 1 to form a locking block 701 for threaded connection with the cleaning tank 1, the upper end of the cleaning tank 1 is provided with a groove for embedding the cover plate 7 so that the cover plate 7 is flush with the upper end of the cleaning tank 1, the locking block 701 is provided with a through slot penetrating through the lower end surface of the locking block 701, a bolt 9 passes through the through slot and is screwed into the cleaning tank 1, the nut of the bolt 9 abuts against the locking block 701, when the wiping member 3 needs to be replaced, the cover plate 7 can be opened by screwing the bolt 9 to replace the wiping member 3.

[0039] In some examples, the cleaning tank 1 includes an upper tank body 106 and a lower tank body 107 arranged in an up-down manner, the bottom wall of the upper tank body 106 is formed as the above-mentioned transverse partition plate 101, the inner wall of the upper end of the lower tank body 107 is recessed to form an inner step, the outer wall of the lower end of the upper tank body 106 is recessed to form an outer step, and the inner step abuts against the outer step to realize the initial positioning of the upper tank body 106 and the lower tank body 107.

[0040] In some examples, the transverse partition 101 is provided with an upper mounting hole 108 for mounting the spray head 2, the bottom wall of the cleaning tank 1 is provided with a lower mounting hole 109 for mounting the spray head 2, the upper end of the spray head 2 is mounted in the upper mounting hole 108, the lower end of the spray head 2 is mounted in the lower mounting hole 109, an upper sealing member 8 is mounted between the upper mounting hole 108 and the spray head 2, and a lower sealing member 10 is mounted between the lower mounting hole 109 and the spray head 2. The upper sealing member 8 and the lower sealing member 10 can be, but are not limited to, O-shaped sealing rings.

[0041] In some examples, the inner bottom wall of the upper tank body 106 is protruded to form a plurality of protrusions 110, and gaps are left between the protrusions 110 and the inner wall of the upper tank body 106 for the flow of cleaning liquid.

[0042] Working principle:

[0043] The peristaltic pump 4 sends the cleaning liquid from the first port thereof into the spray head 2, the spray head 2 sprays the cleaning liquid in the working cavity 104, the wiping member 3 is soaked in the cleaning liquid and can absorb the cleaning liquid, the remaining cleaning liquid enters the lower chamber 102 through the reflux cavity 105, and then enters the second port of the peristaltic pump 4 to form a circulation, so as to keep the wiping member 3 in a wet state for cleaning work at any time. When the nozzle 501 of the dispensing valve 5 is stuck with glue, the dispensing valve 5 is moved above the wiping member 3 and is lowered to contact the nozzle 501 with the wiping member 3 to clean the nozzle 501.

[0044] Based on the above ideal embodiments of the present application, the related personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A dispensing valve nozzle cleaning mechanism, characterized by: The utility model relates to a cleaning box, a wiping member and a peristaltic pump, which are used for cleaning the nozzle of a spray device. The cleaning box comprises: a cleaning box (1) internally formed with a containing cavity for containing cleaning liquid, the containing cavity being provided with a transverse partition plate (101) to divide the containing cavity into an upper cavity and a lower cavity (102), the upper cavity being provided with a longitudinal partition plate (103) to divide the upper cavity into a working cavity (104) and a reflux cavity (105) in communication with each other, the working cavity (104) and the lower cavity (102) being provided with a spray head (2) for sending the cleaning liquid into the working cavity (104), and the reflux cavity (105) being in communication with the lower cavity (102); a wiping member (3) fixed in the working cavity (104) and capable of absorbing the cleaning liquid in the working cavity (104), the upper surface of the wiping member (3) extending out of the working cavity (104) to form a working surface (3021) for wiping the nozzle (501); 2. A valve nozzle cleaning mechanism for a dispensing valve according to claim 1, wherein: and a peristaltic pump (4) with a first port in communication with the spray head (2) and a second port in communication with the lower cavity (102).

3. A valve nozzle cleaning mechanism for a dispensing valve according to claim 2, wherein: The wiping member (3) comprises a liquid immersion part (301) in the working cavity (104) and a working part (302) extending out of the working cavity (104), the working surface (3021) being located on the working part (302), and the liquid immersion part (301) having a cross-sectional area greater than that of the working part (302) to form a limiting step therebetween, the limiting step being provided with a cover plate (7).

4. The valve nozzle cleaning mechanism of claim 1, wherein: One end of the cover plate (7) is hinged to the cleaning box (1), and the other end is bent towards the cleaning box (1) to form a locking block (701) for threaded connection with the cleaning box (1).

5. A valve nozzle cleaning mechanism for a dispensing valve according to claim 1, wherein: The cleaning box (1) comprises an upper box body (106) and a lower box body (107) arranged in a vertical manner, and the bottom wall of the upper box body (106) forms the transverse partition plate (101).

6. A valve nozzle cleaning mechanism for a dispensing valve according to claim 4, wherein: The transverse partition plate (101) is provided with an upper mounting hole (108) for mounting the spray head (2), the bottom wall of the cleaning box (1) is provided with a lower mounting hole (109) for mounting the spray head (2), an upper sealing member (8) is mounted between the upper mounting hole (108) and the spray head (2), and a lower sealing member (10) is mounted between the lower mounting hole (109) and the spray head (2). The inner bottom wall of the upper box body (106) is provided with a plurality of convex strips (110).

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