Glue spraying cover and glue injection equipment

Abstract

The utility model discloses a glue spraying cover and glue injection equipment, and relates to the field of glue injection equipment. The glue spraying cover comprises a cover body and a protruding part, the end wall of the cover body is connected with one end of the annular part, a cavity is defined between the end wall and the annular part, and therefore the cover body can cover the cup opening of the collecting cup. The protruding part is connected to the end wall and located in the cavity, the protruding part is provided with a through hole penetrating through the end wall, and the through hole is communicated with the cavity. When the glue injection valve needs to inject glue into the collecting cup, the glue injection valve moves downwards, so that the barrel part of the glue injection valve is inserted into the through hole, and the glue is injected into the collecting cup. The protruding part and the cover body are both made of elastic materials, so that the annular part is in sealing fit with the cup opening of the collecting cup, the barrel part is in sealing fit with the through hole, vacuum can be smoothly pumped out of the collecting cup, and glue is effectively prevented from remaining on a nozzle of the glue injection valve. Meanwhile, a connector is not needed, and the aperture of the through hole is large, so that the situation that the through hole is blocked by glue can be reduced, and the reliability of the glue spraying cover is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to glue injection equipment field, in particular to a glue injection cap and glue injection equipment. BACKGROUND

[0002] The glue injection valve of glue injection equipment has the nozzle and the cylinder part connected, and the glue in the cylinder part is sprayed out through the nozzle. In the process of pausing glue injection of the glue injection valve, in order to avoid the glue remaining in the nozzle from solidifying and causing blockage, the glue needs to be sprayed into the collecting cup below every time interval. The opening of the collecting cup is covered with a glue injection cap, and the glue injection cap is provided with a connector matched with the nozzle. Since vacuum is generated in the collecting cup to avoid the glue remaining in the nozzle, the nozzle and the connector need to be sealed and matched. However, the opening diameter of the connector is small due to the need for matching with the nozzle, and the glue is prone to remaining in the opening of the connector, thereby causing the glue to block the connector. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a glue injection cap, which can save the connector and reduce the glue blockage.

[0004] The utility model further provides a glue injection equipment with the above glue injection cap.

[0005] According to the glue injection cap of the first aspect of the utility model, the end wall of the cover body is connected to one end of the annular part, and a cavity is formed between the end wall and the annular part. The protruding part is connected to the end wall and located in the cavity, and the protruding part is provided with a through hole penetrating through the end wall, and the through hole is communicated with the cavity. The protruding part and the cover body are made of elastic material, and the through hole is used for sealing and matching with the cylinder part of the glue injection valve.

[0006] According to the glue injection cap of the utility model, at least the following beneficial effects are achieved:

[0007] The end wall of the cover body is connected to one end of the annular part, and a cavity is formed between the end wall and the annular part, so that the cover body can be covered on the cup opening of the collecting cup. The protruding part is connected to the end wall and located in the cavity, and the protruding part is provided with a through hole penetrating through the end wall, and the through hole is communicated with the cavity. When the glue injection valve needs to inject glue into the collecting cup, the glue injection valve is moved downward, so that the cylinder part of the glue injection valve is inserted into the through hole, and the glue is injected into the collecting cup. Since the protruding part and the cover body are made of elastic material, it is beneficial to the sealing and matching of the annular part and the cup opening of the collecting cup, and also beneficial to the sealing and matching of the cylinder part and the through hole, so that the vacuum in the collecting cup can be smoothly extracted, and the glue remaining in the nozzle of the glue injection valve is effectively avoided. At the same time, the connector is not needed, and the opening diameter of the through hole is large, so that the glue blockage of the through hole can be reduced, and the reliability of the glue injection cap is improved.

[0008] According to some embodiments of the present application, the cover and the convex part are made of silica gel or rubber material.

[0009] According to some embodiments of the present application, the Shore A hardness of the glue spraying cover is S, satisfying 50HA≤S≤70HA.

[0010] According to some embodiments of the present application, the through hole is a circular hole, the inner wall surface of the annular part is a circular arc surface, and the through hole and the circular arc surface are coaxially arranged.

[0011] According to some embodiments of the present application, the through hole is a circular hole, the diameter of the through hole is D1, satisfying 10mm≤D1≤11mm.

[0012] According to some embodiments of the present application, the height of the convex part protruding from the end wall is H1, the height of the cavity is H2, satisfying H1<H2.

[0013] According to some embodiments of the present application, the height of the convex part protruding from the end wall is H1, satisfying 7.5mm≤H1≤8.5mm.

[0014] According to some embodiments of the present application, the thickness of the annular part is W, satisfying 4.8mm≤W≤5.8mm.

[0015] According to some embodiments of the present application, a chamfer is arranged between the annular part and the end wall.

[0016] According to the glue injection equipment of the second aspect of the present application, the glue injection equipment comprises a collecting cup, a glue injection valve and the glue spraying cover of the first aspect of the present application, the glue spraying cover is arranged on the cup opening of the collecting cup, the glue injection valve comprises a barrel part, and the barrel part can be sealingly matched with the through hole.

[0017] According to the glue injection equipment of the present application, at least the following beneficial effects are achieved:

[0018] By adopting the glue spraying cover of the first aspect embodiment, the glue spraying cover is connected by setting the end wall of the cover body and one end of the annular part, and a cavity is formed between the end wall and the annular part, so that the cover body can be covered on the cup opening of the collection cup. The protruding part is connected to the end wall and located in the cavity, and the protruding part is provided with a through hole penetrating through the end wall, and the through hole and the cavity are communicated. When the glue injection valve needs to inject glue into the collection cup, the glue injection valve is moved downward, so that the barrel part of the glue injection valve is inserted into the through hole, so as to inject glue into the collection cup. Since the protruding part and the cover body are both made of elastic material, it is beneficial to the sealing cooperation of the annular part and the cup opening of the collection cup, and it is also beneficial to the sealing cooperation of the barrel part and the through hole, so that the collection cup can be smoothly evacuated, and the glue remaining in the nozzle of the glue injection valve can be effectively avoided. At the same time, no joint is needed, and the aperture of the through hole is large, so as to reduce the situation that the glue blocks the through hole, and improve the reliability of the glue spraying cover.

[0019] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0021] Figure 1 is a structure schematic view of the glue spraying cover of an embodiment of the present application;

[0022] Figure 2 is a sectional view of the glue spraying cover and the glue injection valve of an embodiment of the present application;

[0023] Figure 3 is a structure schematic view of the collection cup, the glue spraying cover and the glue injection valve of an embodiment of the present application;

[0024] Figure 4 is an explosion view of the collection cup and the glue spraying cover of an embodiment of the present application;

[0025] Figure 5 is a structure schematic view of the barrel part of the glue injection valve inserted into the through hole of the glue spraying cover of an embodiment of the present application.

[0026] LIST OF REFERENCE NUMERALS

[0027] Glue spraying cover 100; cover body 110; annular part 111; end wall 112; cavity 113; chamfer 114; protruding part 120; through hole 121; collection cup 200; cup opening 210; glue injection valve 300; barrel part 310; nozzle 320; hollow pipeline 330. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation of the present application.

[0030] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0031] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0032] The glue spraying cover in the related art is usually made of aluminum material, so the glue spraying cover basically has no elasticity, and in order to realize the sealing cooperation with the nozzle of the glue injection valve, a connector needs to be arranged on the glue spraying cover, the connector is usually made of silica gel material and has a certain elastic deformation capacity, so it can be sealed with the nozzle, which is beneficial to generating negative pressure in the collecting cup, thereby sucking out the glue in the nozzle, avoiding that the glue is accumulated in the nozzle for a long time to cause the nozzle to be blocked. However, the opening diameter of the connector is small due to the cooperation with the nozzle, and the glue is easy to be left in the opening of the connector, thereby causing the connector to be blocked by the glue.

[0033] In order to reduce the glue blocking condition, refer to Figure 1 and Figure 2As shown, the glue spraying cover 100 of the embodiment of the utility model can be used for glue injection equipment and is arranged on the collecting cup 200 of the glue injection equipment. The glue spraying cover 100 of the embodiment of the utility model comprises a cover body 110 and a protruding part 120. The cover body 110 comprises an annular part 111 and an end wall 112. The end wall 112 is connected to one end of the annular part 111, for example, the lower end of the annular part 111. The connection mode can be one-piece forming, bonding, fastener connection, etc. A cavity 113 is formed between the end wall 112 and the annular part 111. The protruding part 120 is connected to the end wall 112 and located in the cavity 113. The protruding part 120 is provided with a through hole 121 penetrating through the end wall 112, and the through hole 121 communicates with the cavity 113. The protruding part 120 and the cover body 110 are made of elastic material. The through hole 121 is used for sealing cooperation with the barrel part 310 of the glue injection valve 300.

[0034] It can be understood that, by adopting the above scheme, referring to Figure 3 、 Figure 4 and Figure 5 , when the glue injection valve 300 needs to inject glue into the collecting cup 200, the glue injection valve 300 is lowered, so that the barrel part 310 of the glue injection valve 300 is inserted into the through hole 121, thereby injecting glue into the collecting cup 200 through the hollow pipe 330 of the glue injection valve 300. Since the protruding part 120 and the cover body 110 are both made of elastic material, it is beneficial to the sealing cooperation of the annular part 111 and the cup opening 210 of the collecting cup 200. By setting the outer diameter of the barrel part 310 close to the inner diameter of the through hole 121, for example, the outer diameter of the barrel part 310 is slightly larger than the inner diameter of the through hole 121, it is beneficial to the sealing cooperation of the barrel part 310 and the through hole 121, so that the collecting cup 200 can be smoothly evacuated, and glue residue in the nozzle 320 of the glue injection valve 300 can be effectively avoided. At the same time, no joint is needed, and the aperture of the through hole 121 is relatively large, so that the nozzle 320 can penetrate deeper into the collecting cup 200, thereby reducing the situation that the glue blocks the through hole 121, and improving the reliability of the glue spraying cover 100.

[0035] In the embodiment of the utility model, the cover body 110 and the protruding part 120 are made of silica gel or rubber material. The silica gel material has excellent high temperature resistance and can be used for a long time in a high temperature environment without deformation, expansion or melting. The silica gel material also has good low temperature resistance and can maintain good elasticity at low temperature. The rubber material can maintain good performance during contact and friction with other objects and is not easy to wear. The rubber material has certain resistance to many chemicals and is not easy to be corroded. The rubber material has good air tightness and can be used to manufacture sealing elements to prevent gas or liquid leakage. The silica gel material and the rubber material are common materials in life, and the raw materials are widely available, the cost is low, the manufacturing efficiency is high, and the production cost of the glue spraying cover 100 can be reduced.

[0036] In the embodiment of the utility model, the Shore A hardness of glue spraying cover 100 is S, which satisfies: 50HA≤S≤70HA, for example, the Shore hardness of glue spraying cover 100 can be 50HA, 58HA, 60HA, 62HA, 65HA, 70HA and the like. Preferably, the Shore A hardness of glue spraying cover 100 is S, which can satisfy: 58HA≤S≤62HA. The hardness of glue spraying cover 100 can be measured by A-type Shore hardness tester. The indenter of the Shore hardness tester is vertically and stably pressed into the surface of the silica gel sample until the indenter is completely in contact with the sample and is stable. When applying pressure, the speed should be uniform to avoid errors caused by too fast or too slow. After the indenter is stable, immediately read the scale value on the Shore hardness tester, which is the hardness value of the silica gel sample. When reading, ensure that the line of sight is perpendicular to the scale line to reduce visual error. In order to improve the reliability of the measurement result, multiple measurements can be performed at different positions of the sample, for example, three or five times, and the average value is taken as the final result.

[0037] When the Shore hardness S of glue spraying cover 100 is less than 50HA, the overall glue spraying cover 100 is too soft to achieve good sealing effect. When the Shore hardness S of glue spraying cover 100 is greater than 70HA, the overall glue spraying cover 100 is too hard to produce appropriate elastic deformation to wrap the cylinder part 310, which is also not conducive to the sealing between the cylinder part 310 and the inner wall of the through hole 121. By limiting the Shore hardness of the glue spraying cover 100 to be between 50HA and 70HA, the glue spraying cover 100 can have certain structural strength, while ensuring the sealing effect when cooperating with the collection cup 200, and also ensuring the sealing effect when the cylinder part 310 cooperates with the inner wall of the through hole 121.

[0038] Referring to Figure 1 and Figure 2 In the embodiment of the utility model, the through hole 121 is a circular hole, the inner wall surface of the annular part 111 is a circular arc surface, and the through hole 121 and the circular arc surface are coaxially arranged, i.e. the through hole 121 is located in the middle of the annular part 111. It can be understood that since the collection cup 200 needs to be fixed on the mounting seat of the glue injection equipment, and the position of the glue injection valve 300 for injecting glue into the collection cup 200 is also fixed. Therefore, by coaxially arranging the through hole 121 and the circular arc surface, it is beneficial for the glue injection valve 300 to inject glue through the glue spraying cover 100, and it is convenient for the production injection molding of the glue spraying cover 100, improving the production efficiency.

[0039] Referring to Figure 2As shown, in the embodiment of the utility model, the through hole 121 is a circular hole and the aperture is D1, satisfying: 10mm≤D1≤11mm, for example, the value of D1 can be 10mm, 10.5mm, 11mm, etc. (mm, millimeter). When D1 is less than 10mm, the aperture of the through hole 121 is small, and the cylinder portion 310 is difficult to be inserted into the through hole 121, and the glue sprayed by the nozzle 320 is easy to be left in the through hole 121, causing the through hole 121 to be blocked. When D1 is greater than 11mm, the aperture of the through hole 121 is large, and it is difficult to ensure the sealing performance when the cylinder portion 310 is inserted into the through hole 121, which may cause the glue to be left in the nozzle 320, so that the nozzle 320 is blocked by the glue. Therefore, by reasonably designing the aperture D1 of the through hole 121 in the range of 10mm to 11mm, the sealing performance of the cylinder portion 310 inserted into the through hole 121 can be ensured, and at the same time, the glue left in the through hole 121 can be reduced, so that the through hole 121 is blocked by the glue.

[0040] Referring to Figure 2 As shown, in the embodiment of the utility model, the height of the convex portion 120 protruding from the end wall 112 is H1, and the height of the cavity 113 is H2, satisfying: H1 When the height H1 of the convex portion 120 is less than 7.5mm, that is, the height of the convex portion 120 is too low, and the contact area when cooperating with the cylinder portion 310 is too small, the sealing performance is poor. When the height H1 of the convex portion 120 is greater than 8.5mm, the height of the convex portion 120 is too high, the sealing allowance is too large, the cost is increased, and the convex portion 120 may contact the glue in the collection cup 200, causing the glue to block the through hole 121. Therefore, by reasonably designing the height H1 of the convex portion 120 in the range of 7.5mm to 8.5mm, the sealing performance between the cylinder portion 310 and the inner wall of the through hole 121 can be ensured to meet the requirements, and at the same time, the convex portion 120 and the glue in the collection cup 200 are avoided from contacting.

[0041] Referring to Figure 2As shown, in the embodiment of the utility model, the thickness of annular part 111 is W, and satisfies: 4.8mm≤W≤5.8mm, for example, the value of W can be 4.8mm, 5.3mm, 5.8mm, etc.When the thickness W of annular part 111 is less than 4.8mm, the overall strength of annular part 111 is low, and the reliability is not high.When the thickness W of annular part 111 is greater than 5.8mm, the strength margin of annular part 111 is too large, the material usage is large, and the production cost increases.Therefore, by reasonably designing the thickness W of annular part 111 in the range of 4.8mm to 5.8mm, the overall structural strength of annular part 111 can be improved, and the production cost can be controlled within a suitable range.

[0042] Referring to Figure 2 As shown, in the embodiment of the utility model, the one end of through hole 121 towards end wall 112 is provided with a round corner, so the cross-sectional area of the one end of through hole 121 towards end wall 112 gradually decreases, which can play a guiding role on cylinder part 310, and is conducive to cooperation with cylinder part 310.A chamfer 114 is arranged between annular part 111 and end wall 112, which is conducive to demolding of glue spraying cover 100 after injection molding, and improves the production efficiency.

[0043] The glue injection equipment of one embodiment of the utility model comprises a rack, a collection cup 200, a glue injection valve 300 and the glue spraying cover 100 of the above embodiment, the glue spraying cover 100 is covered on the cup mouth 210 of the collection cup 200, the glue injection valve 300 comprises a cylinder part 310 and a nozzle 320, the nozzle 320 is connected to the lower end of the cylinder part 310, and the cylinder part 310 can be sealingly matched with the through hole 121.The glue injection equipment of the embodiment of the utility model adopts the glue spraying cover 100 of the above embodiment, the one end of the end wall 112 and the annular part 111 of the cover body 110 is connected, and the cavity 113 is formed between the end wall 112 and the annular part 111, so the cover body 110 can be covered on the cup mouth 210 of the collection cup 200.The convex part 120 is connected to the end wall 112 and located in the cavity 113, the convex part 120 is provided with the through hole 121 penetrating through the end wall 112, the through hole 121 is communicated with the cavity 113.When the glue injection valve 300 needs to inject glue into the collection cup 200, the glue injection valve 300 is moved downward, so that the cylinder part 310 of the glue injection valve 300 is inserted into the through hole 121, thereby injecting glue into the collection cup 200.Because the convex part 120 and the cover body 110 are both made of elastic material, it is conducive to the sealing cooperation of the annular part 111 and the cup mouth 210 of the collection cup 200, and also conducive to the sealing cooperation of the cylinder part 310 and the through hole 121, so that the collection cup 200 can be smoothly evacuated, and the glue remaining in the nozzle 320 of the glue injection valve 300 can be effectively avoided.Meanwhile, no joint is needed, and the aperture of the through hole 121 is large, so the situation that the glue blocks the through hole 121 can be reduced, and the reliability of the glue spraying cover 100 is improved.

[0044] Since the glue injection equipment adopts all the technical solutions of the glue injection cover 100 of the above-mentioned embodiments, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are possessed, and here is not repeated. The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A spray adhesive cap, characterized in that, include: A cover body includes an annular portion and an end wall, the end wall being connected to one end of the annular portion, and the end wall and the annular portion forming a cavity; A protrusion is connected to the end wall and located within the cavity. The protrusion has a through hole penetrating the end wall and communicating with the cavity. The protrusion and the cover are made of an elastic material, and the through hole is used to seal with the cylindrical part of the glue injection valve.

2. The adhesive spray cap according to claim 1, characterized in that: The cover and the protrusion are made of silicone or rubber material.

3. The adhesive spray cap according to claim 2, characterized in that: The Shore A hardness of the adhesive spray cap is S, which satisfies the following condition: 50HA≤S≤70HA.

4. The adhesive spray cap according to claim 1, characterized in that: The through hole is a circular hole, and the inner wall surface of the annular portion is an arc surface. The through hole and the arc surface are coaxially arranged.

5. The adhesive spray cap according to claim 1, characterized in that: The through hole is a round hole with a diameter of D1, satisfying the following condition: 10mm≤D1≤11mm.

6. The adhesive spray cap according to claim 1, characterized in that: The height of the protrusion protruding from the end wall is H1, and the height of the cavity is H2, satisfying: H1 < H2.

7. The adhesive spray cap according to claim 6, characterized in that: The height of the protrusion protruding from the end wall is H1, which satisfies: 7.5mm≤H1≤8.5mm.

8. The adhesive spray cap according to claim 1, characterized in that: The thickness of the annular portion is W, which satisfies: 4.8mm≤W≤5.8mm.

9. The adhesive spray cap according to claim 1, characterized in that: A chamfer is provided between the annular portion and the end wall.

10. A glue dispensing equipment, characterized in that: The device includes a collection cup, an adhesive injection valve, and an adhesive spray cap as described in any one of claims 1 to 9, wherein the adhesive spray cap covers the mouth of the collection cup, and the adhesive injection valve includes a cylindrical portion capable of sealingly engaging with the through hole.

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