CN111716644A

CN111716644A - Glue injection device

Info

Publication number: CN111716644A
Application number: CN201910220799.8A
Authority: CN
Inventors: 王凯平; 鍾乙顺
Original assignee: Megaforce Shanghai Electronic & Plastic Co ltd; Megaforce Co Ltd
Current assignee: Megaforce Shanghai Electronic & Plastic Co ltd; Megaforce Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-09-29

Abstract

A glue injection device comprises a glue injection sleeve, a valve needle, a first driving piece, a second driving piece and a controller. The glue injection sleeve comprises a connection end, a glue injection end and a glue injection channel. The glue is injected from the connecting end and flows out from the glue injecting end. The needle contains the link and pushes up and holds the end, and partial needle is arranged in the injecting glue sleeve. The first driving piece drives the glue injection sleeve to move. The second driving part drives the valve needle to move. The controller controls the first driving piece and the second driving piece to execute the glue injection step, the sealing step and the lifting step. In the injecting glue step, the second driving piece is linked with the valve needle to move towards the first direction, and the glue flows out from the injecting glue end. In the closing step, the second driving piece is linked with the valve needle to move towards the second direction, so that the propping end of the valve needle closes the glue injection end. In the lifting step, the first driving piece is linked with the glue injection sleeve to move towards the first direction.

Description

Glue injection device

Technical Field

The invention relates to the field of plastic or colloid manufacturing processes, in particular to a glue injection device.

Background

In the whole injection molding device, plastic or colloid is injected into the mold core by the glue injection device, which is the most critical part. Since the mold core is usually heated to prevent the injected plastic or glue from solidifying due to rapid cooling or causing uneven solidification of the material.

However, in the nozzle portion of the glue injection device, there is usually a trace amount of residual plastic or glue left after the injection, and the residual plastic or glue is easily dried and solidified due to the mold core approaching high temperature, thereby causing the nozzle to be blocked. In addition, the nozzle part of the glue injection device may be aged if heated for a long time, and may be deformed.

Further, the plastic or gel in the nozzle portion may be deteriorated by high temperature, which affects the subsequent filling and the quality of the injection molded product.

Disclosure of Invention

In view of the above, a glue injection device is provided. The glue injection device comprises a glue injection sleeve, a valve needle, a first driving piece, a second driving piece and a controller. The glue injection sleeve comprises a connection end, a glue injection end and a glue injection channel. The assembling end and the glue injection end are positioned at two opposite ends of the glue injection sleeve. The glue injection channel penetrates from the connecting end to the glue injection end, and the glue is injected from the connecting end and flows out from the glue injection end. The needle inserts and locates the injecting glue sleeve, and the needle contains the link and holds the end in top, and the link holds the both ends that the end is located the needle with the top, and a part of needle is located the injecting glue passageway, and the link salient holds the end in the telescopic group of injecting glue, and the end is held in top and is used for opening or seal the injecting glue passageway. The first driving member is connected with the connecting end to drive the glue injection sleeve to move. The second driving piece is connected with the connecting end and drives the valve needle to move.

The controller is connected with the first driving piece and the second driving piece, and the controller controls the first driving piece and the second driving piece to execute the glue injection step, the sealing step and the lifting step. In the step of injecting glue, the controller controls the second driving piece to be interlocked with the valve needle to move towards the first direction, so that the glue flows out from the glue injection end. In the closing step, the controller controls the second driving piece to drive the valve needle to move towards the second direction, so that the propping end of the valve needle closes the glue injection end. In the lifting step, the controller controls the first driving member to drive the glue injection sleeve to move towards a first direction, wherein the first direction and the second direction are opposite.

In some embodiments, the glue injection device further includes an outer sleeve, the glue injection sleeve is mounted on the outer sleeve, the outer sleeve includes a first end and a second end, the first end and the second end are located at two sides of the outer sleeve, the connection end protrudes out of the first end, the second end has a glue injection port, and the glue injection port corresponds to the glue injection end.

In some embodiments, the glue injection device further includes a connection ring disposed at the first end, and the connection ring has a diameter larger than the outer sleeve.

In some embodiments, the glue injection device further includes a cooling pipe disposed on the outer sleeve, and the cooling pipe and the outer sleeve are driven by the first driving member to move together with the glue injection sleeve.

In some embodiments, after the controller performs the lifting step, a returning step is further performed, in the returning step, the controller controls the first driving member to move toward the second direction, so that the glue injection sleeve returns to the state of the sealing step.

In some embodiments, in the injecting step and the sealing step, the injecting end is located inside the second end. Further, in the closing step, the propping end of the valve needle protrudes out of the glue injection end and the second end.

In some embodiments, in the lifting step, the supporting end of the valve pin still seals the glue injection end, the movement amount of the glue injection sleeve is smaller than that of the outer sleeve, and the glue injection end protrudes out of the second end.

In some embodiments, the first driving member is an oil hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. Further, the second driving member is an oil pressure cylinder, a pneumatic cylinder, or an electric cylinder.

Here, drive the injecting glue sleeve through first driving piece, can prevent to remain the dry solidification of colloid, and avoid causing the jam of injecting glue end and injecting glue passageway, more can prevent that the colloid from being heated for a long time rotten, postponing injecting glue telescopic ageing, therefore promoted the holistic life of injecting glue device, further promoted the quality of using its product that jets out and take shape.

The detailed features and advantages of the present invention are described in detail in the following embodiments, which are sufficient for anyone skilled in the art to understand the technical contents of the present invention and to implement the present invention, and the related objects and advantages of the present invention can be easily understood by anyone skilled in the art according to the disclosure, claims and drawings of the present specification.

Drawings

Fig. 1 is a perspective view of the glue injection device.

Fig. 2 is a schematic cross-sectional view of the glue injection device.

Fig. 3A is a schematic cross-sectional view of the glue injection device in the glue injection step.

Fig. 3B is a partially enlarged view of fig. 3A.

Fig. 4A is a schematic cross-sectional view of the glue injection device in a sealing step.

Fig. 4B is a partially enlarged view of fig. 4A.

Fig. 5A is a schematic cross-sectional view of the glue injection device in a lifting step.

Fig. 5B is a partially enlarged view of fig. 5A.

Wherein the reference numerals are:

1 glue injection device 10 glue injection sleeve

11 group connection end 13 glue injection end

15 injecting glue passageway 20 needle

21 connecting end 23 supporting end

30 first drive member 40 second drive member

50 controller 60 outer sleeve

61 first end 63 second end

631 injecting glue mouth 65 go-between

67 cooling tube D1 first direction

D2 second direction

Detailed Description

In the drawings, the widths of some of the elements, regions, etc. are exaggerated for clarity. Like reference numerals refer to like elements throughout the specification. It will be understood that when an element such as it is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, or sections, these elements, components, regions, and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, or section from another element, component, region, layer, or section. Thus, a "first element," "component," "region," or "portion" discussed below could be termed a second element, component, region, or portion without departing from the teachings herein.

Furthermore, relative terms, such as "lower" or "bottom" and "upper" or "top," may be used herein to describe one element's relationship to another element, as illustrated. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in one of the figures is turned over, elements described as being on the "lower" side of other elements would then be oriented on "upper" sides of the other elements. Thus, the exemplary term "lower" can include both an orientation of "lower" and "upper," depending on the particular orientation of the figure. Similarly, if the device in one of the figures is turned over, elements described as "below" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "below" or "beneath" can encompass both an orientation of above and below.

Fig. 1 is a perspective view of the glue injection device. Fig. 2 is a schematic cross-sectional view of the glue injection device. As shown in fig. 1 and 2, the glue injection device 1 includes a glue injection sleeve 10, a valve needle 20, a first driving member 30, a second driving member 40, and a controller 50. The glue injection sleeve 10 comprises a connection end 11, a glue injection end 13 and a glue injection channel 15. The assembling end 11 and the glue injection end 13 are located at two opposite ends of the glue injection sleeve 10. The glue injection channel 15 penetrates from the connection end 11 to the glue injection end 13, and the glue for injection is injected from the connection end 11 and flows out from the glue injection end 13.

The valve needle 20 is inserted into the glue injection sleeve 10, the valve needle 20 includes a connecting end 21 and a propping end 23, the connecting end 21 and the propping end 23 are located at two ends of the valve needle 20, and a portion of the valve needle 20 is located in the glue injection channel 15, especially a middle portion of the valve needle 20. The connecting end 21 of the valve needle 20 protrudes beyond the mating end 11 of the glue injection sleeve 10. The supporting end 23 is used to open or close the glue injection passage 15. The first driving member 30 is assembled with the assembling end 11 to drive the glue injection sleeve 10 to move. The second driving element 40 is connected to the connecting end 21 and drives the valve needle 20 to move. The controller 50 is connected to the first driving member 30 and the second driving member 40, and the controller 50 controls the first driving member 30 and the second driving member 40 to move, so as to drive the valve needle 20 and the glue injection sleeve 10 to move. The controller 50 controls the first driving member 30 and the second driving member 40 to perform the steps of injecting glue, closing and lifting. The following description will be made in detail with reference to the drawings.

Fig. 3A is a schematic cross-sectional view of the glue injection device in the glue injection step. Fig. 3B is a partially enlarged view of fig. 3A. As shown in fig. 3A and 3B, in the glue injection step, the controller 50 controls the second driving member 40 to drive the valve needle 20 to move towards the first direction D1, so that the glue can flow out from the glue injection end 13. That is, the second driving member 40 drives the valve needle 20 to lift upward, so that the bottom end of the glue injection end 13 is opened, and the glue can flow from the position between the valve needle 20 and the glue injection channel 15 to the position of the glue injection end 13.

Fig. 4A is a schematic cross-sectional view of the glue injection device in a sealing step. Fig. 4B is a partially enlarged view of fig. 4A. As shown in fig. 4A and 4B, in the closing step, after the glue injection is completed, the controller 50 controls the second driving member 40 to move the valve needle 20 in the second direction D2, so that the propping end 23 of the valve needle 20 closes the glue injection end 13. Here, the second direction D2 is opposite to the first direction D1, the first direction D1 is above, and the second direction D2 is below, but this is only an example and not a limitation. For example, when the glue injection device 1 is mounted and rotated in the drawing direction, the rotation angle may be adjusted.

Fig. 5A is a schematic cross-sectional view of the glue injection device in a lifting step. Fig. 5B is a partially enlarged view of fig. 5A. In the lifting step, the controller 50 controls the first driving member 30 to drive the glue injection sleeve 10 to move toward the first direction D1, that is, the first driving member 30 drives the glue injection sleeve 10. Therefore, the bottom end of the glue injection sleeve 10 can be far away from the mold core for injecting the glue, and the situation that the glue injection end 13 and the glue injection channel 15 are blocked due to the fact that residual glue is dried and solidified due to the high temperature of the mold core is avoided. At this time, the propping end 23 of the valve needle 20 still seals the glue injection end 13 and the glue injection channel 15, so as to prevent the glue from flowing out.

Referring to fig. 1 and 2 again, as shown in fig. 1 and 2, the glue injection device 1 further includes an outer sleeve 60, and the glue injection sleeve 10 is disposed in the outer sleeve 60. The outer sleeve 60 includes a first end 61 and a second end 63, the first end 61 and the second end 63 are located on two sides of the outer sleeve 60, and the first end 61 is located on the same side of the connecting end 11. The glue injection sleeve 10 is longer than the outer sleeve 60, and the connection end 11 thereof protrudes from the first end 61. The second end 63 of the outer sleeve 60 has a glue injection port 631, and the glue injection port 631 corresponds to the glue injection end 13. The glue can flow out from the glue injection end 13 through the glue injection port 631. Further, as shown in fig. 3A and 3B, during dispensing, the dispensing port 631 is communicated with the dispensing passage 15. When the glue injection sleeve 10 is driven by the first driving member 30, the outer sleeve 60 is linked with the glue injection sleeve 10.

The outer sleeve 60 may also be provided with a coupling ring 65. The connecting ring 65 is disposed at the first end 61 of the outer sleeve 60, and the connecting ring 65 has a larger diameter than the outer sleeve 60. The connection ring 65 is a positioning position for installing the glue injection device 1 in the injection mold.

In addition, the outer sleeve 60 may be provided with cooling tubes 67. The cooling pipe 67 is provided on the outer sleeve 60, and may be provided on an outer wall surface of the outer sleeve 60. However, this is merely an example and not a limitation, and the cooling pipe 67 may be provided inside the outer sleeve 60 or embedded in the wall surface of the outer sleeve 60, for example. The cooling pipe 67 is used to introduce a cooling fluid, such as water, cooling oil, air, or liquid nitrogen, and can be adjusted according to the actual product and manufacturing process. When the glue injection sleeve 10 is driven by the first driving member 30, the cooling pipe 67 and the outer sleeve 60 are linked with the glue injection sleeve 10.

Referring to fig. 3A to 4B again, as shown in fig. 3A to 4B, when the controller 50 performs the glue injection step and the sealing step, the glue injection end 13 is located inside the second end 63. In addition, when the controller 50 executes the closing step, the propping end 23 of the valve needle 20 protrudes from the glue injection end 13 and the second end 63. Thus, the glue injection end 13 is closed, the glue injection channel 15 is not communicated with the second end 63 of the outer sleeve 60, and the outflow channel of the glue is closed.

Referring to fig. 5A and 5B again, as shown in fig. 5A and 5B, in the lifting step, the moving amount of the glue injection sleeve 10 is smaller than that of the outer sleeve 60, and the glue injection end 13 protrudes from the second end 63. Generally speaking, the bottom end of the outer sleeve 60 can be prevented from approaching the high-temperature mold core for a long time, so as to prevent the deformation of the outer sleeve 60 from affecting the gap between the glue injection sleeve 10 and the outer sleeve 60, and prevent the movement of the glue injection sleeve 10 from being affected.

Further, after the controller 50 performs the lifting step, the controller may further perform the returning step after pressurizing and vulcanizing to withdraw the colloid-cured molded body from the mold core, so that the glue injection sleeve 10 returns to the state of the sealing step, that is, the state shown in fig. 2 or fig. 4A and fig. 4B. That is, in the returning step, the controller 50 controls the first driving member 30 to move toward the second direction D2, so that the glue injection sleeve 10 and the outer sleeve 60 descend to prepare for the next glue injection operation.

In summary, in the embodiment, the controller 50 controls the first driving member 30 to drive the glue injection sleeve 10, so as to prevent the residual glue from being dried and solidified, avoid the blockage of the glue injection end 13 and the glue injection channel 15, further prevent the glue from being deteriorated due to long-term heating, and delay the aging of the glue injection sleeve 10, thereby prolonging the overall service life of the glue injection device 1 and further improving the quality of the product formed by injection molding using the glue injection device.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A glue injection device is characterized by comprising:

the glue injection sleeve comprises a connecting end, a glue injection end and a glue injection channel, wherein the connecting end and the glue injection end are positioned at two opposite ends of the glue injection sleeve;

the valve needle is inserted into the glue injection sleeve and comprises a connecting end and a propping end, the connecting end and the propping end are positioned at two ends of the valve needle, one part of the valve needle is positioned in the glue injection channel, the connecting end protrudes out of the assembling end of the glue injection sleeve, and the propping end is used for opening or closing the glue injection channel;

the first driving piece is connected with the connecting end in an assembling way and drives the glue injection sleeve to move;

the second driving piece is connected with the connecting end and drives the valve needle to move; and

a controller connected to the first driving member and the second driving member, wherein the controller controls the first driving member and the second driving member to perform the following steps:

a glue injection step: the controller controls the second driving piece to drive the valve needle to move towards a first direction, so that the colloid flows out from the glue injection end;

a sealing step: the controller controls the second driving piece to drive the valve needle to move towards a second direction, so that the top holding end of the valve needle closes the glue injection end; and

a lifting step: the controller controls the first driving member to drive the glue injection sleeve to move towards the first direction, wherein the first direction and the second direction are opposite.

2. The glue injection device of claim 1, further comprising an outer sleeve, wherein the glue injection sleeve is mounted on the outer sleeve, the outer sleeve comprises a first end and a second end, the first end and the second end are located on two sides of the outer sleeve, the connection end protrudes out of the first end, the second end is provided with a glue injection port, the glue injection port corresponds to the glue injection end, and when the glue injection sleeve is driven by the first driving member, the outer sleeve is linked with the glue injection sleeve.

3. The apparatus according to claim 2, further comprising a connection ring, wherein the connection ring is disposed at the first end, and the diameter of the connection ring is larger than the outer sleeve.

4. The apparatus according to claim 2, further comprising a cooling tube disposed on the outer sleeve, wherein the cooling tube and the outer sleeve are jointly coupled to the glue injection sleeve when the glue injection sleeve is driven by the first driving member.

5. The apparatus according to claim 2, wherein the controller further performs a returning step after the lifting step, wherein in the returning step, the controller controls the first driving member to move in the second direction, so that the glue-injecting sleeve returns to the state of the sealing step.

6. A glue injection apparatus as claimed in claim 2, wherein in the glue injection step and the sealing step, the glue injection end is located inside the second end.

7. An injection device according to claim 6, wherein in the closing step, the tip end of the valve pin protrudes beyond the injection end and the second end.

8. The apparatus according to claim 2, wherein during the lifting step, the needle is still held at the injection end, the injection sleeve moves less than the outer sleeve, and the injection end protrudes beyond the second end.

9. The apparatus according to claim 1, wherein the first driving member is an oil cylinder, a pneumatic cylinder, or an electric cylinder.

10. The apparatus according to claim 9, wherein the second driving member is an oil cylinder, a pneumatic cylinder, or an electric cylinder.