Static mixing dispensing valve

Abstract

The invention discloses a static mixing dispensing valve which comprises an A glue valve body, a B glue valve body, a flow guide block connected with a glue outlet of the A glue valve body and a glue outlet of the B glue valve body, and a glue outlet pipe body arranged below the flow guide block and respectively communicated with an A glue flow guide channel and a B glue flow guide channel on the flow guide block, a flow guide channel extending in the length direction of the glue outlet pipe body is formed in the glue outlet pipe body, a glue mixing rod is arranged in the flow guide channel, and the glue mixing rod further comprises a plurality of first double-spiral pieces arranged at intervals in the vertical direction and a plurality of second double-spiral pieces arranged at intervals in the vertical direction. According to the glue dispensing device, the glue A and the glue B entering the flow guide channel can be mixed for multiple times under the condition that the glue mixing rod is not rotated while the glue A and the glue B are mixed and discharged, so that the uniformity and the consistency of mixed glue liquid discharged outwards from the glue discharging runner are improved, and the glue dispensing quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of glue dispensing, and in particular to a static mixing glue dispensing valve. Background Art

[0002] In the glue industry, there is a kind of two-component glue. Glue A and glue B need to be mixed together to achieve the solidification effect. When dispensing, a dispensing valve is usually used to mix and output the glue.

[0003] When mixing the two glues, the prior art dispensing valve usually adopts a dynamic mixing method, in which a motor drives the screw to rotate for mixing. If a conventional screw is used for mixing without rotating, glue A and glue B cannot be mixed multiple times in the glue cavity, resulting in insufficient glue mixing, and the uniformity of the mixed glue liquid output to the outside and the dispensing effect cannot be guaranteed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a static mixing dispensing valve, which can achieve multiple mixing of A and B glues entering the guide channel without rotating the mixing rod while mixing and dispensing two-component glues A and B, thereby improving the uniformity and consistency of the mixed glue liquid discharged from the glue dispensing flow channel and ensuring the quality of dispensing.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a static mixing dispensing valve, comprising: an A glue valve body, a B glue valve body, a guide block connecting the glue outlet of the A glue valve body and the glue outlet of the B glue valve body, and a glue outlet pipe body arranged below the guide block and connected to the A glue guide channel and the B glue guide channel on the guide block, respectively, the glue outlet pipe body is provided with a guide channel extending along the length direction of the glue outlet pipe body, the upper surface of the glue outlet pipe body is respectively provided with an A glue inlet hole connected to the A glue guide channel and a B glue inlet hole connected to the B glue guide channel, the lower ends of the A glue inlet hole and the B glue inlet hole arranged obliquely are connected to the upper end of the guide channel, and the lower end of the guide channel is connected to a glue outlet flow channel; A mixing rod is arranged in the guide channel, and the mixing rod further includes a plurality of first double helical sheets arranged at intervals in the vertical direction and a plurality of second double helical sheets arranged at intervals in the vertical direction, the first double helical sheets and the second double helical sheets with opposite spiral directions are staggered and connected in the vertical direction, and the lower end surface of each of the first double helical sheets is vertically cross-connected with the upper end surface of the adjacent second double helical sheets.

[0006] The further improved scheme in the above technical scheme is as follows: 1. In the above solution, the pitches of the first double helical sheet and the second double helical sheet are the same.

[0007] 2. In the above solution, the A rubber valve body and the B rubber valve body are both screw valves.

[0008] 3. In the above scheme, the A glue guide channel and the B glue guide channel further include: a vertical flow channel whose upper end is connected to the glue outlet of the valve body, an inclined flow channel whose lower end is connected to the guide channel on the guide block, and a horizontal flow channel connecting the lower end of the vertical flow channel and the upper end of the inclined flow channel.

[0009] 4. In the above scheme, a guide through hole whose lower end is connected to the glue outlet channel is opened on the upper surface of the glue outlet pipe body and is located directly above the guide channel. A cut-off needle passes through the guide through hole parallel to the guide channel and arranged at an interval. The upper end of the cut-off needle which can move in the vertical direction passes through the guide block and is connected to the driving assembly arranged above the guide block. When the cut-off needle whose upper end is connected to the driving assembly is in the first position, its lower end face is in sealing contact with the upper end face of the glue outlet channel. When the cut-off needle moves upward to the second position, a glue outlet gap is formed between its lower end face and the upper end face of the glue outlet channel.

[0010] 5. In the above solution, a glue discharge needle is installed on the glue discharge channel, and the upper end surface of the glue discharge needle embedded in the glue discharge channel is lower than the upper end surface of the glue discharge channel or is flush with the upper end surface of the glue discharge channel.

[0011] 6. In the above solution, a blocking block is embedded and installed at the upper end of the guide channel that passes through the upper surface of the outlet hose body.

[0012] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The static mixing dispensing valve of the present invention has a flow guide channel extending along the length direction of the flow guide channel body in the flow guide tube body, and the upper surface of the flow guide tube body is respectively provided with an A glue inlet hole connected to the A glue flow guide channel and a B glue inlet hole connected to the B glue flow guide channel, and the lower ends of the A glue inlet hole and the B glue inlet hole, which are arranged obliquely, are connected to the upper end of the flow guide channel, and the lower end of the flow guide channel is connected to a flow channel for dispensing glue, and a mixing rod is arranged in the flow guide channel, and the mixing rod further includes a plurality of first double helical holes arranged at intervals in the vertical direction. The invention relates to a double-helical sheet and a plurality of second double-helical sheets arranged at intervals in the vertical direction, the first double-helical sheets and the second double-helical sheets with opposite spiral directions are staggered and connected in the vertical direction, and the lower end surface of each first double-helical sheet is vertically cross-connected with the upper end surface of the adjacent second double-helical sheet, so that the A and B two-component glues can be mixed and discharged at the same time, and the A and B glues entering the guide channel can be mixed multiple times without rotating the glue mixing rod, thereby improving the uniformity and consistency of the mixed glue liquid discharged from the glue discharge flow channel to the outside, and ensuring the quality of glue dispensing.

[0013] 2. The static mixing dispensing valve of the present invention further has a guiding through hole with its lower end communicating with the glue outlet channel on the upper surface of the glue outlet pipe body and directly above the guiding channel. A cut-off needle passes through the guiding through hole that is parallel to and spaced from the guiding channel, and the upper end of the cut-off needle that can move vertically passes through the guiding block and is connected to a driving assembly arranged above the guiding block. When the cut-off needle with its upper end connected to the driving assembly is in the first position, its lower end surface is in sealing contact with the upper end surface of the glue outlet channel. When the cut-off needle moves upward to the second position, a glue outlet gap is formed between its lower end surface and the upper end surface of the glue outlet channel. It organically combines static glue mixing, glue outlet, and glue stopping into one body without increasing the volume of the glue mixing channel to avoid losses caused by glue drying. It not only saves costs and streamlines the occupied space but also facilitates loading and unloading operations. As a consumable in the dispensing system, it can be automatically replaced, which is conducive to improving the overall automation level and dispensing efficiency of the dispensing system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 is the overall structural schematic diagram of the static mixing dispensing valve of the present invention; Attached Figure 2 is Figure 1 the sectional view along A-A in the attached figure; Attached Figure 3 is for the present invention attached Figure 2 the enlarged schematic diagram at B in the figure; Attached Figure 4 is the partial structural schematic diagram of the static mixing dispensing valve of the present invention; Attached Figure 5 is Figure 4 the sectional view along C-C in the attached figure; Attached Figure 6 is for the present invention attached Figure 5 the enlarged schematic diagram at D in the figure; Attached Figure 7 is the schematic diagram of the glue mixing rod of the static mixing dispensing valve of the present invention.

[0015] In the above drawings: 1. Glue outlet pipe body; 2. Guiding channel; 3. Glue outlet channel; 31. Glue outlet needle tube; 41. A glue inlet hole; 42. B glue inlet hole; 5. Glue mixing rod; 51. First double helix sheet; 52. Second double helix sheet; 6. Guiding through hole; 61. Flange part; 62. Plugging block; 7. Cut-off needle; 8. Inclined pipe; 9. Sealing ring; 10. Protrusion part; 10. Protrusion part; 11. A glue valve body; 12. B glue valve body; 13. Guiding block; 131. A glue guiding channel; 132. B glue guiding channel; 133. Inclined flow channel; 134. Horizontal flow channel; 135. Vertical flow channel; 14. Glue outlet pipe; 15. Screw rod; 16. Motor; 17. Connecting rod; 18. Guiding pipe; 19. Threaded protrusion. EMBODIMENTS

[0016] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0017] Embodiment 1: A static mixing dispensing valve, comprising: an A glue valve body 11, a B glue valve body 12, a guide block 13 connecting the glue outlet of the A glue valve body 11 and the glue outlet of the B glue valve body 12, and a glue outlet pipe body 1 arranged below the guide block 13 and connected to the A glue guide channel 131 and the B glue guide channel 132 on the guide block 13, wherein a guide channel 2 extending along the length direction of the glue outlet pipe body 1 is provided in the glue outlet pipe body 1, and an A glue inlet hole 41 connected to the A glue guide channel 131 and a B glue inlet hole 42 connected to the B glue guide channel 132 are respectively provided on the upper surface of the glue outlet pipe body 1, and the lower ends of the A glue inlet hole 41 and the B glue inlet hole 42 arranged obliquely are connected to the upper end of the guide channel 2, and the lower end of the guide channel 2 is connected to a glue outlet flow channel 3; A mixing rod 5 is arranged in the guide channel 2, and the mixing rod 5 further includes a plurality of first double helical sheets 51 arranged at intervals in the vertical direction and a plurality of second double helical sheets 52 arranged at intervals in the vertical direction, the first double helical sheets 51 and the second double helical sheets 52 having opposite spiral directions are staggered and connected in the vertical direction, and the lower end surface of each first double helical sheet 51 is vertically cross-connected with the upper end surface of the adjacent second double helical sheet 52; When in use, glue A and glue B enter the valve body from the glue inlet of glue valve body A and glue valve body B respectively, then flow in the direction of glue A guide channel and glue B guide channel, and then enter the guide channel from glue A inlet hole and glue B inlet hole of the glue outlet pipe body respectively, pass through the mixing rod in the guide channel, and the channel formed by two groups of double helical blades with opposite spiral directions realizes multiple reversing mixing, thereby improving the mixing efficiency and uniformity, and then enters the inclined pipeline, and finally the mixed glue liquid is output outward from the glue outlet flow channel connected to the inclined pipeline to realize the dispensing operation. While realizing the mixing and dispensing of two-component glues A and B, multiple mixing of glues A and B entering the guide channel can be realized without rotating the mixing rod, thereby improving the uniformity and consistency of the mixed glue liquid discharged from the glue outlet flow channel, thereby ensuring the quality of dispensing.

[0018] The first double helical sheet 51 and the second double helical sheet 52 have the same pitch.

[0019] The first double helical sheet 51 and the second double helical sheet 52 are each rotated 180 degrees along the helical axis.

[0020] The helical pitch angles of the first double helical sheet 51 and the second double helical sheet 52 are both 50°.

[0021] The A-rubber valve body 11 and the B-rubber valve body 12 are both screw valves.

[0022] The above-mentioned A glue valve body 11 and B glue valve body 12 further include: a glue outlet pipe 14, a screw 15 located in the glue outlet pipe 14 and a motor 16 located above the glue outlet pipe 14, the upper end of the screw 15 extending along the length direction of the glue outlet pipe 14 is connected to the motor 16 through a connecting rod 17, and the other end of the connecting rod 17 is connected to the output shaft of the motor 16.

[0023] A flow guide tube 18 is disposed between the screw rod 15 and the rubber outlet pipe 14 , and a threaded protrusion 19 cooperating with the screw rod 15 is disposed on the inner wall of the flow guide tube 18 .

[0024] The above-mentioned A glue guide channel 131 and B glue guide channel 132 further include: a vertical flow channel 135 whose upper end is connected to the glue outlet of the valve body, an inclined flow channel 133 whose lower end is connected to the guide channel on the guide block 13, and a horizontal flow channel 134 connecting the lower end of the vertical flow channel 135 and the upper end of the inclined flow channel 133.

[0025] A glue discharge needle tube 31 is installed on the glue discharge flow channel 3 , and the upper end surface of the glue discharge needle tube 31 , the upper end of which is embedded in the glue discharge flow channel 3 , is lower than the upper end surface of the glue discharge flow channel 3 .

[0026] A blocking block 62 is embedded and installed at the upper end of the guide channel 2 that passes through the upper surface of the outlet hose body 1 .

[0027] Embodiment 2: A static mixing dispensing valve, comprising: an A glue valve body 11, a B glue valve body 12, a guide block 13 connecting the glue outlet of the A glue valve body 11 and the glue outlet of the B glue valve body 12, and a glue outlet pipe body 1 arranged below the guide block 13 and connected to the A glue guide channel 131 and the B glue guide channel 132 on the guide block 13, wherein a guide channel 2 extending along the length direction of the glue outlet pipe body 1 is provided in the glue outlet pipe body 1, and an A glue inlet hole 41 connected to the A glue guide channel 131 and a B glue inlet hole 42 connected to the B glue guide channel 132 are respectively provided on the upper surface of the glue outlet pipe body 1, and the lower ends of the A glue inlet hole 41 and the B glue inlet hole 42 arranged obliquely are connected to the upper end of a guide channel 2 provided in the glue outlet pipe body 1, and the lower end of the guide channel 2 is connected to a glue outlet flow channel 3; A mixing rod 5 is arranged in the guide channel 2, and the mixing rod 5 further includes a plurality of first double helical sheets 51 arranged at intervals in the vertical direction and a plurality of second double helical sheets 52 arranged at intervals in the vertical direction. The first double helical sheets 51 and the second double helical sheets 52 with opposite spiral directions are staggered and connected in the vertical direction, and the lower end surface of each of the first double helical sheets 51 is vertically cross-connected with the upper end surface of the adjacent second double helical sheet 52.

[0028] The pitches of the above-mentioned first double-helix sheet 51 and second double-helix sheet 52 are the same.

[0029] The helix angles of the helical lines of the above-mentioned first double-helix sheet 51 and second double-helix sheet 52 are both 40°.

[0030] The above-mentioned A glue valve body 11 and B glue valve body 12 are both screw valves.

[0031] The above-mentioned A glue diversion channel 131 and B glue diversion channel 132 both further include: a vertical flow channel 135 with an upper end communicating with the glue outlet of the valve body, an inclined flow channel 133 with a lower end communicating with the diversion channel on the diversion block 13, and a horizontal flow channel 134 connecting the lower end of the vertical flow channel 135 and the upper end of the inclined flow channel 133.

[0032] On the upper surface of the above-mentioned glue outlet pipe body 1 and directly above the diversion channel 2, a guiding through hole 6 with a lower end communicating with the glue outlet flow channel 3 is provided. A cut-off needle 7 passes through the guiding through hole 6 arranged in parallel and at intervals with the diversion channel 2. The upper end of the cut-off needle 7 movable in the vertical direction passes through the diversion block 13 and is connected to a driving component arranged above the diversion block 13. When the cut-off needle 7 with the upper end connected to the driving component is in the first position, its lower end surface is in sealing contact with the upper end surface of the glue outlet flow channel 3. When the cut-off needle 7 moves upward to the second position, a glue outlet gap is formed between its lower end surface and the upper end surface of the glue outlet flow channel 3; Moreover, the opening and closing of the glue outlet flow channel are realized by the up and down movement of the cut-off needle in the guiding through hole, so as to control the glue outlet timing according to the requirements of dispensing; After being used for a period of time, it needs to be replaced to ensure the quality of dispensing. At this time, only the whole needs to be taken out from the dispensing equipment and a new one can be installed. The whole process can be realized by mechanical automation without manual intervention.

[0033] A glue outlet needle tube 31 is installed on the above-mentioned glue outlet flow channel 3. The upper end surface of the glue outlet needle tube 31 with the upper end embedded in the glue outlet flow channel 3 is flush with the upper end surface of the glue outlet flow channel 3.

[0034] The lower end of the above-mentioned diversion channel 2 and the upper end of the glue outlet flow channel 3 are connected through an inclined pipe 8 provided on the glue outlet pipe body 1.

[0035] A convex portion 10 extending along the entire circumferential direction is provided at the edge of the upper surface of the above-mentioned glue outlet pipe body 1.

[0036] The above-mentioned A glue inlet hole 41 and B glue inlet hole 42 are symmetrically arranged on both sides of the diversion channel 2.

[0037] On the upper surface of the above-mentioned glue outlet pipe body 1 and on the outer sides of the circumferences of the A glue inlet hole 41 and B glue inlet hole 42, a sealing ring 9 is provided respectively.

[0038] The above driving component is a cylinder.

[0039] On the inner wall at the lower end of the above-mentioned guiding through hole 6, there is a flange portion 61 extending radially inward, and the side wall of the flange portion 61 is in sliding contact with the cut-off needle 7.

[0040] The working principle of the present invention is as follows: During use, glue A and glue B respectively enter the valve body from the glue inlet of the glue A valve body and the glue B valve body, then flow along the directions of the glue A diversion channel and the glue B diversion channel, and then enter the diversion channel from the glue A inlet hole and the glue B inlet hole of the glue outlet pipe body respectively. After passing through the mixing rod in the diversion channel, the channels formed by connecting two groups of double spiral blades with opposite spiral directions realize multiple commutation and mixing, improving the efficiency and uniformity of mixing. Then it enters the inclined pipe, and finally the mixed glue liquid is output outward from the glue outlet flow channel connected to the inclined pipe to realize the dispensing operation. While realizing the mixing and dispensing of the two-component glue A and B, it can realize multiple mixing of glue A and B entering the diversion channel without rotating the mixing rod, thereby improving the uniformity and consistency of the mixed glue liquid discharged outward from the glue outlet flow channel and ensuring the quality of dispensing; Moreover, by moving the cut-off needle up and down in the guiding through hole, the opening and closing of the glue outlet flow channel are realized, so as to control the glue outlet timing according to the dispensing requirements; After using for a period of time, it needs to be replaced to ensure the quality of dispensing. At this time, only the whole needs to be taken out from the dispensing equipment and a new one is installed. The whole process can be realized through mechanical automation without manual intervention.

[0041] When the above-mentioned static mixing dispensing valve is adopted, while realizing the mixing and dispensing of the two-component glue A and B, it can realize multiple mixing of glue A and B entering the diversion channel without rotating the mixing rod, thereby improving the uniformity and consistency of the mixed glue liquid discharged outward from the glue outlet flow channel and ensuring the quality of dispensing; furthermore, it organically combines static mixing, glue outlet and glue stopping into one body and does not increase the volume of the mixing flow channel to avoid the loss caused by the drying of the glue, which not only saves costs and simplifies the occupied space, but also is convenient for loading and unloading operations. As a consumable in the dispensing system, it can be automatically replaced, which is beneficial to improving the overall automation degree and dispensing efficiency of the dispensing system.

[0042] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A static mixing dispensing valve, include: A glue valve body (11), a B glue valve body (12), a guide block (13) connecting the glue outlet of the A glue valve body (11) and the glue outlet of the B glue valve body (12), and a glue outlet pipe body (1) arranged below the guide block (13) and respectively connected to the A glue guide channel (131) and the B glue guide channel (132) on the guide block (13); a guide channel (2) extending along the length direction of the glue outlet pipe body (1) is provided in the glue outlet pipe body (1); an A glue inlet hole (41) connected to the A glue guide channel (131) and a B glue inlet hole (42) connected to the B glue guide channel (132) are respectively provided on the upper surface of the glue outlet pipe body (1); the lower ends of the A glue inlet hole (41) and the B glue inlet hole (42) which are arranged obliquely are respectively connected to the upper end of the guide channel (2); and the lower end of the guide channel (2) is connected to a glue outlet flow channel (3); The invention is characterized in that: a mixing rod (5) is arranged in the guide channel (2), and the mixing rod (5) further comprises a plurality of first double helical sheets (51) arranged at intervals in the vertical direction and a plurality of second double helical sheets (52) arranged at intervals in the vertical direction, the first double helical sheets (51) and the second double helical sheets (52) having opposite spiral directions are staggered and connected in the vertical direction, and the lower end surface of each first double helical sheet (51) is vertically cross-connected with the upper end surface of the adjacent second double helical sheet (52).

2. The static mixing dispensing valve according to claim 1, Features: The first double helical sheet (51) and the second double helical sheet (52) have the same pitch.

3. The static mixing dispensing valve according to claim 1, Features: The A rubber valve body (11) and the B rubber valve body (12) are both screw valves.

4. The static mixing dispensing valve according to claim 1 or 3, Features: The A glue guide channel (131) and the B glue guide channel (132) further comprise: a vertical flow channel (135) whose upper end is connected to the glue outlet of the valve body, an inclined flow channel (133) whose lower end is connected to the guide channel on the guide block (13), and a horizontal flow channel (134) connecting the lower end of the vertical flow channel (135) and the upper end of the inclined flow channel (133).

5. The static mixing dispensing valve according to any one of claims 1 to 3, Features: A guide through hole (6) whose lower end is connected to the glue outlet flow channel (3) is provided on the upper surface of the glue outlet pipe body (1) and is located directly above the guide channel (2). A cut-off needle (7) passes through the guide through hole (6) which is parallel to the guide channel (2) and arranged at an interval. The upper end of the cut-off needle (7) which can move in the vertical direction passes through the guide block (13) and is connected to a driving component arranged above the guide block (13). When the cut-off needle (7) whose upper end is connected to the driving component is in a first position, its lower end surface is in sealing contact with the upper end surface of the glue outlet flow channel (3). When the cut-off needle (7) moves upward to a second position, a glue outlet gap is formed between its lower end surface and the upper end surface of the glue outlet flow channel (3).

6. The static mixing dispensing valve according to claim 1, characterized in that: a dispensing needle tube (31) is installed on the dispensing flow channel (3), and the upper end surface of the dispensing needle tube (31) embedded in the upper end of the dispensing flow channel (3) is lower than the upper end surface of the dispensing flow channel (3) or flush with the upper end surface of the dispensing flow channel (3).

7. The static mixing dispensing valve according to claim 1, characterized in that: a blocking block (62) is embedded and installed at the upper end of the diversion channel (2) penetrating the upper surface of the dispensing tube body (1).

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