Anti-overflow glue injection mold

Abstract

The utility model discloses a kind of anti-overflow glue injection mould, including upper die and lower die, further including embedded sleeve, embedded sleeve is installed in lower die, embedded sleeve is adapted with upper die, lower die, embedded sleeve is adapted with upper die and is in abutment;Lower die is provided with the embedded sleeve groove of adaptation with embedded sleeve, embedded sleeve is detachably installed in embedded sleeve groove, and the top of embedded sleeve is in abutment with upper die;Embedded sleeve includes forming sleeve, anti-skid damping sleeve box extrusion ring plate, and the top of forming sleeve is provided with extrusion ring plate and extrusion ring plate, and extrusion ring plate is adapted with the lamination part of upper die and the both are in abutment.The anti-overflow glue injection mould of the utility model is provided with embedded sleeve at lower die, so that upper die and lower die are pressed in embedded sleeve, block the gap between upper die and lower die, effectively place the middle overflow glue of product, and by replacing embedded sleeve calculated, it can effectively reduce the overflow glue between upper die and lower die, effectively save the cost of replacement mould.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to an anti-overflow injection mold. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding include high production speed and efficiency, automated operation, a wide variety of colors and shapes (from simple to complex), and sizes ranging from large to small. It also produces dimensionally accurate products, facilitates product updates, and can create complex shapes. Injection molding is suitable for mass production and molding of complex-shaped products. It involves injecting completely molten plastic material, stirred by a screw at a specific temperature, into an injection mold, and then cooling and solidifying to obtain the molded product. This method is suitable for the mass production of complex-shaped parts and is one of the important processing methods.

[0003] Currently used injection molds generally use an upper mold and a lower mold to cooperate and fit together to injection mold plastic. Due to long-term use of the mold, wear is inevitable between the upper mold and the lower mold, resulting in insufficient tightness between the upper mold and the lower mold. This causes excess glue to be generated between the upper mold and the lower mold, resulting in glue overflow in the middle of the produced product, which is difficult to clean and cannot meet the user's needs. Utility Model Content

[0004] To solve the above technical problems, an anti-overflow injection mold is provided to prevent glue overflow between the upper and lower molds and to prevent glue overflow in the middle of the product.

[0005] To achieve the above objectives, the following solution is provided: an anti-overflow injection mold, comprising an upper mold and a lower mold, wherein the upper mold is adapted to the lower mold and is located above the lower mold, and further comprising an inner mold sleeve, wherein the inner mold sleeve is installed inside the lower mold, the inner mold sleeve is adapted to the upper mold and the lower mold, and the inner mold sleeve abuts against the upper mold;

[0006] The lower mold is provided with a mold insert groove that fits the inner mold sleeve. The inner mold sleeve is detachably installed in the mold insert groove, and the top of the inner mold sleeve abuts against the upper mold.

[0007] The embedded mold sleeve includes a molding sleeve, an anti-slip damping sleeve, and an extrusion ring plate. A protective damping sleeve is provided on the outer side of the molding sleeve, and an extrusion ring plate is provided at the top of the molding sleeve. The extrusion ring plate is adapted to the fitting part of the upper mold and the two abut against each other.

[0008] Furthermore, an annular pressure relief groove is provided on the outer side of the bonding part of the upper mold, and a guide groove is provided on the side of the pressure relief groove near the bonding part, and the extrusion ring plate is bonded to the bonding part and the pressure relief groove.

[0009] Furthermore, the guide groove extends to half the width of the mating portion.

[0010] Furthermore, a plurality of positioning bases are evenly provided at the edge of the lower mold, and a plurality of positioning grooves are evenly provided at the upper mold. The positioning grooves are adapted to the positioning bases, and the positioning bases are fitted and inserted into the positioning grooves.

[0011] Furthermore, a cavity is provided on the inner side of the fitting part of the upper mold.

[0012] The working principle and advantages of this utility model are as follows: This anti-overflow injection mold sets an embedded mold sleeve at the lower mold, so that the upper mold and the lower mold are pressed together in the embedded mold sleeve, sealing the gap between the upper mold and the lower mold, effectively preventing the overflow of glue in the middle of the product. Moreover, by replacing the default embedded mold sleeve, the occurrence of glue overflow between the upper mold and the lower mold can be effectively reduced, effectively saving the cost of replacing the mold. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a structural diagram of the present utility model;

[0015] Figure 3 This is a structural diagram of the embedded mold of this utility model.

[0016] The reference numerals in the accompanying drawings include:

[0017] 1. Lower mold, 2. Positioning base, 3. Mold groove, 4. Upper mold, 5. Positioning groove, 6. Fitting part, 7. Flow guide groove, 8. Pressure relief groove, 9. Inner mold sleeve, 91. Forming sleeve, 92. Anti-slip damping sleeve, 93. Extrusion ring plate. Detailed Implementation

[0018] The following detailed explanation illustrates the specific implementation methods:

[0019] like Figures 1 to 3 As shown:

[0020] An anti-overflow injection mold includes an upper mold 4 and a lower mold 1. The upper mold 4 is adapted to the lower mold 1 and is located above the lower mold 1. The upper mold 4 and the lower mold 1 constitute the basic components of the injection mold. Corresponding injection ports are pre-set at the upper mold 4 and the lower mold 1. The upper mold 4 and the lower mold 1 are respectively installed at corresponding mold bases and finally installed at corresponding injection molding equipment. The mold also includes an inner mold sleeve 9, which is installed inside the lower mold 1. The inner mold sleeve 9 is adapted to the upper mold 4 and the lower mold 1. The inner mold sleeve 9 abuts against the upper mold 4, so that the upper mold 4 and the lower mold 1 work together to seal the inner mold sleeve 9.

[0021] The lower mold 1 is provided with a mold insert groove 3 that is adapted to the inner mold sleeve 9. The inner mold sleeve 9 is detachably installed in the mold insert groove 3. When the inner mold sleeve 9 is installed in the mold insert groove 3, it is fixed in the mold insert groove 3 by bolts or other tools. The top of the inner mold sleeve 9 abuts against the upper mold 4, so that during injection molding production, the inner mold sleeve, the upper mold 4, and the lower mold 1 form a closed injection space.

[0022] The inner mold sleeve 9 includes a molding sleeve 91, an anti-slip damping sleeve 92, and an extrusion ring plate 93. The internal space of the molding sleeve 91 is adapted to the workpiece to be injection molded. A protective damping sleeve is provided on the outside of the molding sleeve 91. The anti-slip damping sleeve 92 is used to stably embed the molding sleeve 91 into the mold groove 3 and at the same time protect the surface of the molding sleeve 91. An extrusion ring plate 93 is provided at the top of the molding sleeve 91. The extrusion ring plate 93 is adapted to the fitting part 6 of the upper mold 4 and the two abut against each other, so that the upper mold 4 can close the top of the molding sleeve 91.

[0023] An annular pressure relief groove 8 is provided on the outer side of the bonding part 6 of the upper mold 4. A guide groove 7 is provided on the side of the pressure relief groove 8 near the bonding part 6. The extrusion ring plate 93 is bonded to the bonding part 6 and the pressure relief groove 8. When the pressure inside the molding sleeve 91 is too high, the guide groove 7 and the pressure relief groove 8 can relieve part of the pressure into the pressure relief groove 8 and the guide groove 7. The guide groove 7 guides the plastic overflowing from the molding sleeve 91 into the pressure relief groove 8, so that even if the pressure of the produced product is too high, the overflow will only occur at its end, which is convenient for subsequent cleaning of the overflow.

[0024] The guide groove 7 extends to half the width of the fitting part 6, so that the fitting part 6 can be firmly attached to the extrusion ring plate 93, ensuring the sealing of the molding sleeve 91.

[0025] Several positioning bases 2 are evenly arranged on the edge of the lower mold 1, and several positioning grooves 5 are evenly arranged on the upper mold 4. The positioning grooves 5 are adapted to the positioning bases 2, and the positioning bases 2 are inserted into the positioning grooves 5. The positioning bases 2 and the positioning grooves 5 work together to position the upper mold 4 and the lower mold 1.

[0026] The upper mold 4 has a cavity inside the fitting part 6. The cavity is adapted to the shape of the workpiece and is used for injection molding of the workpiece. The cavity is relatively shallow and can serve as the top extension of the molding sleeve 91.

[0027] The specific implementation process is as follows:

[0028] When using this anti-overflow injection mold, the upper mold 4 and the lower mold 1 are installed at the injection molding equipment, and the inner mold sleeve is installed into the mold groove 3 at the lower mold 1. When using this mold to produce workpieces, the upper mold 4 and the lower mold 1 are closed, so that the upper mold 4 and the lower mold 1 clamp the inner mold sleeve 9. The fitting part 6 at the upper mold 4 is pressed against the extrusion ring plate 93 of the inner mold sleeve 9. The injection molding equipment injects molten plastic into the inner mold sleeve 9 through the injection port of the upper mold 4 and the lower mold 1. The inner mold sleeve 9 is injection molded under the action of the molding sleeve 91 of the inner mold sleeve 9 and the cavity of the upper mold 4. After the plastic cools, the workpiece in the mold is ejected under the action of the ejection mechanism of the mold.

[0029] If the pressure inside the molding sleeve is too high, the pressure and excess plastic inside the molding sleeve will be squeezed into the gap between the fitting part and the annular top plate, and then flow into the pressure relief groove through the guide groove, thereby relieving the pressure on the molding sleeve and the upper mold cavity.

[0030] This anti-overflow injection mold uses an embedded mold sleeve at the lower mold to press the upper and lower molds together within the embedded mold sleeve, sealing the gap between the upper and lower molds and effectively preventing overflow of glue in the middle of the product. Furthermore, by replacing the default embedded mold sleeve, the occurrence of overflow between the upper and lower molds can be effectively reduced, thus saving on mold replacement costs.

[0031] The above description is merely an embodiment of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the applicability of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An anti-overflow injection mold, comprising an upper mold and a lower mold, wherein the upper mold is adapted to the lower mold and is located entirely above the lower mold, characterized in that: It also includes an embedded mold sleeve, which is installed in the lower mold and is adapted to the upper and lower molds, with the embedded mold sleeve abutting against the upper mold. The lower mold is provided with a mold insert groove that fits the inner mold sleeve. The inner mold sleeve is detachably installed in the mold insert groove, and the top of the inner mold sleeve abuts against the upper mold. The embedded mold sleeve includes a molding sleeve, an anti-slip damping sleeve, and an extrusion ring plate. A protective damping sleeve is provided on the outer side of the molding sleeve, and an extrusion ring plate is provided at the top of the molding sleeve. The extrusion ring plate is adapted to the fitting part of the upper mold and the two abut against each other.

2. The anti-overflow injection mold according to claim 1, characterized in that: An annular pressure relief groove is provided on the outer side of the bonding part of the upper mold, and a guide groove is provided on the side of the pressure relief groove near the bonding part. The extrusion ring plate is bonded to the bonding part and the pressure relief groove.

3. The anti-overflow injection mold according to claim 2, characterized in that: The guide groove extends to half the width of the mating part.

4. The anti-overflow injection mold according to claim 1, characterized in that: The lower mold has several positioning bases evenly arranged at its edge, and the upper mold has several positioning grooves evenly arranged. The positioning grooves are adapted to the positioning bases, and the positioning bases are inserted into the positioning grooves.

5. The anti-overflow injection mold according to claim 1, characterized in that: The upper mold has a cavity on the inner side of the fitting part.

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