Cooling device for mixing pipe

Abstract

The invention provides a cooling device for a mixing pipe, which comprises a static mixing pipe, a spacing pipe, an air inlet piece, an exhaust piece and a refrigeration piece, the spacing pipe is sleeved outside the static mixing pipe, a cold air channel is arranged between the static mixing pipe and the spacing pipe, one end of the cold air channel is connected with the air inlet piece, and the other end of the cold air channel is connected with the exhaust piece. The other end of the cold air channel is connected with an exhaust part, and a cold air outlet of the refrigeration part is connected with an air inlet part; cold air of the refrigerating part enters the cold air channel from the air inlet part and then is exhausted from the air exhaust part. The interval pipe is arranged outside the static mixing pipe, and the cold air channel is formed between the interval pipe and the static mixing pipe, so that the static mixing pipe can be located at a lower environment temperature, the reaction speed of glue in the static mixing pipe is slowed down, the times of glue discharging by equipment shutdown and the glue discharging time are reduced, and the effect of reducing waste is achieved; the cost is saved and the environment is protected.

Description

Technical Field

[0001] The invention relates to the technical field of glue dispensing equipment, and in particular to a cooling device for a mixing tube. Background Art

[0002] Glue dispensing equipment is an automated machine that controls fluids and drips and applies fluids to the surface or inside of products. Glue dispensing equipment can be divided into single-component glue dispensing equipment and two-component glue dispensing equipment. The glue used in single-component glue dispensing equipment is glue of one specification, and the glue used in two-component glue dispensing equipment is glue of two different specifications (glue A and glue B). Before use, glue A and glue B are stored separately. When in use, glue A and glue B are mixed in a static mixing tube or other ways according to the specified ratio for bonding.

[0003] The existing Chinese patent with publication number CN215997307U discloses a two-component dispensing valve and a glue injection machine having the same, and the two-component dispensing valve includes: a valve body and a valve stem; a one-piece joint is provided at the lower end of the valve body, and the joint is used to seal and connect a static mixing tube; a vertical and through sliding cavity is provided on the valve body; an air inlet and a feed hole connected to the sliding cavity are provided on the side of the valve body from top to bottom, and the number of the air inlet and the number of the feed holes are 2 respectively; the valve stem slides in a sealed manner in the sliding cavity, and a glue channel is provided at the bottom of the valve stem, one end of the glue channel can match and be connected with the air inlet and the feed hole, and the other end is used to output glue; the number of glue channels is 2; the feed hole is always in full contact with the valve stem.

[0004] In the prior art, a large amount of heat is generated when glue A and glue B are mixed in a static mixing tube. The heat will accelerate the reaction speed of the glue, which will shorten the curing time of the mixed glue and reduce the glue flow rate, thereby causing the glue output to be unstable and the operating time to be shortened, which is not conducive to online production and also wastes consumables such as mixing tube needles. Summary of the invention

[0005] In view of the defects in the prior art, an object of the present invention is to provide a cooling device for a mixing tube.

[0006] According to the present invention, a cooling device for a mixing tube includes a static mixing tube, a spacer tube, an air inlet, an exhaust, and a refrigeration element. The spacer tube is sleeved outside the static mixing tube. A cold air channel is provided between the static mixing tube and the spacer tube. One end of the cold air channel is connected to the air inlet, and the other end of the cold air channel is connected to the exhaust. The cold air outlet of the refrigeration element is connected to the air inlet.

[0007] The cold air of the refrigeration component enters the cold air channel from the air intake component and is discharged from the exhaust component.

[0008] Preferably, the air inlet member includes a first connection portion and a second connection portion, the first connection portion is threadedly connected to the cold air outlet of the refrigeration member, one end of the second connection portion is threadedly connected to the spacer tube, and the other end of the second connection portion is sealed and connected to the static mixing tube;

[0009] The first connection part and the second connection part are connected in one piece. A connecting hole is provided inside the first connection part. The connecting hole connects the first threaded hole of the first connection part and the second threaded hole of the second connection part.

[0010] Preferably, the first connecting portion comprises a rod handle portion, one end of the rod handle portion is provided with a first threaded hole, and the other end of the rod handle portion is connected to the second connecting portion.

[0011] Preferably, the second connecting portion comprises a conical nut, wherein the end of the conical nut having a larger diameter is provided with a thread, and the end of the conical nut having a smaller diameter is provided with a groove for accommodating a sealing ring.

[0012] Preferably, the exhaust member comprises an exhaust nut, and the exhaust nut is threadedly connected to the spacer tube;

[0013] An exhaust hole is arranged around the exhaust nut, and the cold air in the cold air passage is discharged from the exhaust hole.

[0014] Preferably, the static mixing tube is covered with a jacket tube, the spacer tube is sleeved outside the jacket tube, and a cold air channel is provided between the jacket tube and the spacer tube.

[0015] Preferably, the spacer tube is covered with thermal insulation cotton.

[0016] Preferably, the static mixing tube comprises a glue inlet portion, a mixing portion and a glue outlet portion, and the mixing portion is arranged between the glue inlet portion and the glue outlet portion;

[0017] The spacer sleeve is arranged outside the mixing part.

[0018] Preferably, the glue inlet portion is threadedly connected to the glue outlet head of the glue outlet pipe through a locking nut.

[0019] Preferably, the glue outlet portion is arranged at an end away from the exhaust member.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention arranges a spacer tube outside the static mixing tube, and forms a cold air channel between the spacer tube and the static mixing tube, so that the static mixing tube can be in a lower ambient temperature, slowing down the reaction speed of the glue in the static mixing tube, reducing the number of equipment shutdowns and the time for glue removal, achieving the effect of reducing waste, saving costs and protecting the environment;

[0022] 2. The structure of the air inlet member of the present invention includes a first connecting part and a second connecting part, a connecting hole for cold air transmission is provided between the first connecting part and the second connecting part, the first connecting part is threadedly connected to the cold air outlet, the second connecting part is threadedly connected to the spacer tube and sealedly connected to the static mixing tube, which is conducive to the good entry of cold air into the cold air channel;

[0023] 3. The present invention provides an exhaust member including an exhaust nut with exhaust holes around the circumference, which is conducive to the exhaust of cold air and the fixing of the spacer tube at the same time;

[0024] 4. The present invention sets the exhaust part away from the glue outlet, so that the exhausted gas will not blow on the workpiece that needs to be glued in the static mixing tube, and will not affect the mixed glue, which is conducive to better protection of the glue line;

[0025] 5. The present invention arranges heat-insulating cotton outside the spacer tube, and the heat-insulating cotton plays a good heat-insulating role, which is conducive to making the low-temperature environment of the static mixing tube more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0027] Figure 1 It is a cross-sectional view of a cooling device mainly embodied in the present invention;

[0028] Figure 2 It is a cross-sectional view of a cooling device mainly embodied in the present invention;

[0029] Figure 3 This is a schematic diagram of the three-dimensional structure of the cooling device mainly embodied in the present invention;

[0030] Figure 4 This is a schematic diagram of the three-dimensional structure of the air intake member mainly embodied in the present invention;

[0031] Figure 5 This is a three-dimensional cross-sectional view mainly showing the connection between the air intake component and the refrigeration component of the present invention;

[0032] Figure 6 This is a schematic diagram of a three-dimensional structure of the connection between the air intake component and the refrigeration component of the present invention;

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the exhaust component mainly embodied in the present invention.

[0034] In the figure:

[0035] Locking nut 1 Air inlet 5 Connecting hole 505

[0036] Exhaust member 2 First connection portion 501 Static mixing tube 6

[0037] Exhaust hole 201 First threaded hole 503 Sheath tube 7

[0038] Refrigeration element 3 Second connection portion 502 Spacer tube 8

[0039] Insulation cotton 4 Second threaded hole 504 Sealing ring 9 DETAILED DESCRIPTION

[0040] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0041] like Figures 1 to 3 As shown, a cooling device for a mixing tube provided according to the present invention includes a static mixing tube 6, a spacer tube 8, an air inlet piece 5, an exhaust piece 2 and a refrigeration piece 3. The spacer tube 8 is sleeved outside the static mixing tube 6. A cold air channel is provided between the static mixing tube 6 and the spacer tube 8. One end of the cold air channel is connected to the air inlet piece 5, and the other end of the cold air channel is connected to the exhaust piece 2. The cold air outlet of the refrigeration piece 3 is connected to the air inlet piece 5; the cold air of the refrigeration piece 3 enters the cold air channel from the air inlet piece 5 and is discharged from the exhaust piece 2.

[0042] The static mixing tube 6 is used to mix different glues. For example, glue A in the glue outlet tube A and glue B in the glue outlet tube B enter the static mixing tube 6 through the glue outlet A and the glue outlet B of the gun valve respectively for mixing. Different glues will react and generate heat when mixed in the static mixing tube 6, and the heat will accelerate the reaction speed between different glues. The cooling device provided by the present invention includes a cold air channel surrounding the outer wall of the static mixing tube 6. During the mixing process of different glues, new cold air continuously enters the cold air channel, and the cold air carries the heat generated by the mixing of the glues inside the static mixing tube 6 and is discharged, so that the mixed glue is in a lower temperature environment.

[0043] Specifically, the static mixing tube 6 includes a glue inlet, a mixing part and a glue outlet. The mixing part is arranged between the glue inlet and the glue outlet. The spacing tube 8 is sleeved outside the mixing part, so that space is left for the glue inlet to be connected with the glue outlet head of the glue outlet pipe of different glues. The glue outlet is provided with a needle for applying glue to the workpiece. The glue inlet is threadedly connected with the glue outlet head of the glue outlet pipe through the locking nut 1, so that the glue outlet head and the static mixing tube 6 are closely matched, and the glue can enter the static mixing tube 6 for mixing. The glue outlet is arranged at one end away from the exhaust member 2, so that the exhausted gas will not blow on the workpiece, will not affect the mixed glue, and is conducive to better protection of the glue line. It can be known that the length of the static mixing tube 6 is greater than the length of the spacing tube 8, which is conducive to setting the position of the air inlet 5 and the exhaust member 2, and is also conducive to the static mixing tube 6 for the entry and mixing of different glues and the glue outlet of the mixed glue.

[0044] Specifically, Figures 4 to 6 As shown, the air inlet member 5 includes a first connection part 501 and a second connection part 502. The first connection part 501 is threadedly connected to the cold air outlet of the refrigeration member 3, one end of the second connection part 502 is threadedly connected to the spacing tube 8, and the other end of the second connection part 502 is sealed and connected to the static mixing tube 6. The first connection part 501 and the second connection part 502 are integrally connected, and a connecting hole 505 is provided inside the first connection part 501. The connecting hole 505 connects the first threaded hole 503 of the first connection part 501 and the second threaded hole 504 of the second connection part 502. The first connection part 501 includes a rod handle, one end of the rod handle is provided with a first threaded hole 503, and the other end of the rod handle is connected to the second connection part 502. The second connection part 502 includes a conical nut, and the end with a larger diameter of the conical nut is provided with a thread, and the end with a smaller diameter of the conical nut is provided with a groove for accommodating the sealing ring 9. A feasible implementation method is: the central axes of the first threaded hole 503 and the second threaded hole 504 are both perpendicular to the central axis of the connecting hole 505, the cold air outlet of the refrigeration component 3 is connected to the first threaded hole 503, the first threaded hole 503 is opened from the upper part of the rod handle to the connecting hole 505, the connecting hole 505 is located in the middle and lower part of the rod handle, the connecting hole 505 extends from the first threaded hole 503 to the second connecting part 502, the second connecting part 502 is a conical nut, the conical nut includes a through hole, the through hole includes two parts, the end of the conical nut with a larger diameter is provided with a thread, which is the second threaded hole 504, the second threaded hole 504 is threadedly connected to the spacer tube 8, the cold air of the refrigeration component 3 enters the cold air channel through the air inlet 5, the end of the conical nut with a smaller diameter is provided with a groove that can accommodate the sealing ring 9, and is sealed by the sealing ring 9 to prevent the cold air from being discharged from the connection gap between the static mixing tube 6 and the air inlet 5.

[0045] Specifically, Figure 7As shown, the exhaust member 2 includes an exhaust nut, which is threadedly connected to the spacer tube 8. An exhaust hole 201 is arranged around the exhaust nut, and the cold air in the cold air channel is discharged from the exhaust hole 201.

[0046] Specifically, the static mixing tube 6 is covered with a sheath tube 7, and the spacer tube 8 is sleeved outside the sheath tube 7. A cold air channel is provided between the sheath tube 7 and the spacer tube 8. The sheath tube 7 is helpful to prevent the static mixing tube 6 from expanding and rupturing due to excessive glue pressure inside the static mixing tube 6. Furthermore, the spacer tube 8 is provided with thermal insulation cotton, which can better isolate the temperature, so that the cooling effect of the static mixing tube 6 is better.

[0047] The refrigeration component 3 is a commonly used device in the field that can provide cold air. For example, the refrigeration component 3 can be a vortex cooling tube, which is provided with an air inlet for compressed air. The compressed air generates low-temperature gas through the vortex cooling tube. The low-temperature gas enters the air inlet 5 through the cold air inlet of the vortex cooling tube, and then enters the cold air channel.

[0048] During normal gluing, the locking nut 1 and the glue head are threadedly locked, so that the glue head and the static mixing tube 6 are closely matched, the glue can enter the static mixing tube 6 for mixing, the static mixing tube 6 is wrapped inside by the sheath tube 7, and the cold air of the refrigeration part 3 enters the air inlet part 5. The exhaust part 2, the air inlet part 5, the sheath tube 7, the spacer tube 8 and the sealing ring 9 are combined to form a cavity for storing cold air, and new cold air will continuously enter the cavity, and then be discharged from the exhaust part 2 with the heat generated by the mixing of glue inside the static mixing tube 6. The thermal insulation cotton has a good effect of isolating the temperature, so that the cooling effect of the static mixing tube 6 is better.

[0049] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0050] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A cooling device for a mixing tube, characterized in that: The invention comprises a static mixing tube (6), a spacing tube (8), an air inlet component (5), an exhaust component (2) and a refrigeration component (3), wherein the spacing tube (8) is sleeved outside the static mixing tube (6), a cold air channel is provided between the static mixing tube (6) and the spacing tube (8), one end of the cold air channel is connected to the air inlet component (5), the other end of the cold air channel is connected to the exhaust component (2), and the cold air outlet of the refrigeration component (3) is connected to the air inlet component (5); Cold air from the refrigeration component (3) enters the cold air channel from the air intake component (5) and is discharged from the air exhaust component (2).

2. The cooling device for a mixing tube according to claim 1, characterized in that: The air inlet component (5) comprises a first connecting portion (501) and a second connecting portion (502), wherein the first connecting portion (501) is threadedly connected to a cold air outlet of the refrigeration component (3), one end of the second connecting portion (502) is threadedly connected to a spacer tube (8), and the other end of the second connecting portion (502) is sealedly connected to a static mixing tube (6); The first connecting part (501) and the second connecting part (502) are integrally formed and connected, and a connecting hole (505) is provided inside the first connecting part (501), and the connecting hole (505) connects the first threaded hole (503) of the first connecting part (501) and the second threaded hole (504) of the second connecting part (502).

3. The cooling device for a mixing tube according to claim 2, characterized in that: The first connection part (501) comprises a rod handle, one end of which is provided with a first threaded hole (503), and the other end of which is connected to the second connection part (502).

4. The cooling device for a mixing tube according to claim 2, characterized in that: The second connecting portion (502) comprises a conical nut, wherein the end of the conical nut with a larger diameter is provided with a thread, and the end of the conical nut with a smaller diameter is provided with a groove capable of accommodating a sealing ring.

5. The cooling device for a mixing tube according to claim 1, characterized in that: The exhaust member (2) comprises an exhaust nut, and the exhaust nut is threadedly connected to the spacer tube (8); An exhaust hole (201) is provided around the exhaust nut, and the cold air in the cold air passage is discharged from the exhaust hole (201).

6. The cooling device for a mixing tube according to claim 1, characterized in that: The static mixing tube (6) is covered with a jacket tube (7), the spacer tube (8) is sleeved outside the jacket tube (7), and a cold air channel is provided between the jacket tube (7) and the spacer tube (8).

7. The cooling device for a mixing tube according to claim 1, characterized in that: The spacer tube (8) is covered with heat-insulating cotton (4).

8. The cooling device for a mixing tube according to claim 1, characterized in that: The static mixing tube (6) comprises a glue inlet portion, a mixing portion and a glue outlet portion, wherein the mixing portion is arranged between the glue inlet portion and the glue outlet portion; The spacer tube (8) is sleeved outside the mixing section.

9. The cooling device for a mixing tube according to claim 8, characterized in that: The glue inlet portion is threadedly connected to the glue outlet head of the glue outlet pipe via a locking nut (1).

10. The cooling device for a mixing tube according to claim 8, characterized in that: The glue outlet portion is arranged at an end away from the exhaust member (2).

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