Single-sliding-block core pulling device of injection mold

Abstract

The utility model discloses a single slider core-pulling device of an injection mold, which comprises a support frame, the upper end of the support frame is connected with a processing piece used for molding processing of the injection mold, and the processing piece comprises a mold assembly which is installed on the support frame and used for providing an injection molding space for an injection molding end and providing cooling processing for the outer side of a molten material, the mold assembly comprises a lower mold installed at the left end of the upper side of the supporting frame, and the upper end of the lower mold is connected with an upper mold in a sliding mode. According to the single-sliding-block core-pulling device of the injection mold, the oil cylinder assembly drives the core-pulling block to be inserted into the mold cavity by a proper depth through the core-pulling grooves in the right sides of the lower mold and the upper mold, adjustment of the space in the mold cavity is achieved, and after injection molding is completed, water guided into a second water inlet pipe by a water supply pump is guided into a second cooling groove in the core-pulling block through a water passing pipe; the inner surface of the molten material is subjected to heat absorption treatment through the core pulling block through heat exchange so as to accelerate molding of the molten material.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a single-slider core-pulling device for an injection mold. Background Art

[0002] In some parts formed by molds, there is inevitably a parting direction that is different from the mold opening direction. For this reason, lateral parting and core pulling and demoulding operations are required. Therefore, a corresponding single-slider core pulling device must be provided on the injection mold. Referring to the core pulling device of an injection mold with reference to publication number CN210477683U, it includes a lower mold and an upper mold. Two core pulling mechanisms are movably provided on the upper surface of the lower mold. The precise and stable core pulling process greatly reduces the production cost of the mold manufacturing industry and improves work efficiency. As described in the above patent, when the single-slider core pulling device of the existing injection mold is used, most of the internal core pulling blocks will have some residual material attached to the surface that contacts the molten material after use, thereby affecting the subsequent injection molding quality. Moreover, most of the core pulling blocks only have the function of promoting the molding of the material in the mold cavity. It is difficult to cool the inner surface after the molten material is injected, which affects the material molding speed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model provides a single-slider core-pulling device for an injection mold, which solves the problem that residual material attached to the core-pulling block in the device is difficult to handle in time, affecting subsequent injection molding, and the like.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A single-slider core-pulling device for an injection mold, comprising a support frame, the upper end of which is connected to a processing member for injection mold molding, the processing member comprising:

[0005] A mold assembly is mounted on the support frame to provide an injection space for the injection end and provide cooling treatment for the outside of the molten material. The mold assembly includes a lower mold mounted on the left end of the upper side of the support frame. The upper end of the lower mold is slidably connected to the upper mold. The inner sides of the lower mold and the upper mold are both provided with a first cooling groove for passing water for cooling;

[0006] The slider assembly is installed on the right side of the support frame to assist the mold assembly in adjusting the injection space and accelerating the cooling. The slider assembly includes a cylinder assembly horizontally installed on the right side of the support frame. The left extended end of the cylinder assembly is equipped with a core pulling block for adjusting the mold cavity space between the lower mold and the upper mold. The inner interlayer of the core pulling block is provided with a second cooling groove for assisting the mold assembly in cooling the injection material. A cleaning part for cleaning the material attached to the left side of the core pulling block is installed on the support frame.

[0007] Preferably, the mold assembly also includes two groups of first water inlet pipes supplied by an external water supply pump, the two groups of the first water inlet pipes are respectively arranged on the rear side of the lower mold and the upper mold for supplying water to the first cooling tank, the front side of the lower mold and the upper mold are installed with a first return pipe for draining water from the first cooling tank, and the left side of the support frame is slidably connected to an injection nozzle connected to the injection end of an external injection molding machine and used for injection molding inside the lower mold and the upper mold.

[0008] Preferably, the first cooling tank is connected to the first water inlet pipe and the first return pipe respectively, the upper end of the upper mold is connected to a mounting plate for connecting to an external hydraulic cylinder assembly, and the left sides of the lower mold and the upper mold are both provided with injection grooves slidably connected to the injection nozzle.

[0009] Preferably, the slider assembly also includes a second return pipe and a second water inlet pipe installed on the right side of the core pulling block. The second return pipe is used to draw water from the second cooling tank, and the second water inlet pipe is used to supply water to the second cooling tank. The second return pipe is supplied with water by an external water supply pump. Two groups of water pipes for connecting the second cooling tank, the second water inlet pipe, and the second return pipe are provided on the inner side of the core pulling block.

[0010] Preferably, the right sides of the lower mold and the upper mold are both provided with core pulling grooves slidably connected to the core pulling blocks, and the cleaning piece is located on the right sides of the lower mold and the upper mold.

[0011] Preferably, the cleaning member includes a cylinder assembly vertically mounted on a support frame, a scraper for scraping the left side of the core pulling block is mounted on the top of the cylinder assembly, and a frame body slidably connected to the scraper for peeling off attached impurities is mounted on the support frame near the outer side of the core pulling block.

[0012] The utility model provides a single-slider core-pulling device for an injection mold. Compared with the prior art, it has the following advantages:

[0013] (1) The single-slider core-pulling device of the injection mold is provided with a slider assembly in the device, and the oil cylinder assembly drives the core-pulling block to be inserted into the mold cavity to a suitable depth through the core-pulling groove on the right side of the lower mold and the upper mold, so as to adjust the space in the mold cavity. After the injection molding is completed, the water introduced into the second water inlet pipe by the water supply pump is introduced into the second cooling groove in the core-pulling block through the water pipe. The inner surface of the molten material is subjected to heat absorption treatment through the core-pulling block by heat exchange to accelerate the molding of the molten material. After the material is molded, the oil cylinder assembly adjusts the position of the core-pulling block so that the core-pulling block is pulled out from the lower mold and the upper mold, and the lower mold and the upper mold scrape and clean the outer surface of the core-pulling block. After the left side of the core-pulling block is located at a suitable position at the lower end of the scraper, the cylinder assembly adjusts the height of the scraper so that the scraper scrapes and cleans the left side of the core-pulling block, fully cleaning the molten material attached to the surface of the core-pulling block and reducing the impact on the subsequent injection molding operation.

[0014] (2) The single-slider core-pulling device of the injection mold is configured to allow the injection molding machine to inject an appropriate amount of molten material into the space between the lower mold and the upper mold cavity and the core-pulling block through the injection nozzle. After the injection molding is completed, the external water supply pump supplies water to the second water inlet pipe and the two groups of first water inlet pipes. The two groups of first water inlet pipes inject water into the first cooling troughs in the lower mold and the upper mold interlayer respectively. The water flowing through the first cooling trough absorbs heat on the outer surface of the molten material through heat exchange, thereby accelerating the molding of the molten material. The water cooperates with the slider assembly to cool the inner and outer surfaces of the molten material in the mold cavity respectively, thereby accelerating the molding of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cutaway perspective view of the present utility model;

[0016] Figure 2 It is a partial enlarged view of the slider assembly of the utility model;

[0017] Figure 3 This is an enlarged cross-sectional view of the cleaning element of the present invention;

[0018] Figure 4 It is a three-dimensional diagram of the present utility model.

[0019] In the figure: 1. Support frame; 2. Mold assembly; 21. Lower mold; 22. Upper mold; 23. Injection nozzle; 24. First cooling trough; 25. First water inlet pipe; 26. First return pipe; 3. Slider assembly; 31. Cylinder assembly; 32. Core pulling block; 33. Cleaning part; 331. Cylinder assembly; 332. Scraper; 333. Frame; 34. Water pipe; 35. Second return pipe; 36. Second cooling trough; 37. Second water inlet pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] refer to Figure 1-4 , the utility model provides the following two technical solutions:

[0022] First embodiment: A single-slider core-pulling device for an injection mold, comprising a support frame 1, the upper end of which is connected to a processing component for injection mold molding processing, the processing component comprising: a mold assembly 2, mounted on the support frame 1 to provide an injection space for the injection end and provide cooling treatment for the outside of the molten material, the mold assembly 2 comprising a lower mold 21 mounted on the upper left end of the support frame 1, the upper end of the lower mold 21 being slidably connected to an upper mold 22, and the inner sides of the lower mold 21 and the upper mold 22 are both provided with a first cooling groove 24 for cooling by water;

[0023] The slider assembly 3 is installed on the right side of the support frame 1 to assist the mold assembly 2 in adjusting the injection space and accelerating the cooling. The slider assembly 3 includes a cylinder assembly 31 installed horizontally on the right side of the support frame 1. The left extended end of the cylinder assembly 31 is equipped with a core pulling block 32 for adjusting the mold cavity space between the lower mold 21 and the upper mold 22. The inner interlayer of the core pulling block 32 is provided with a second cooling groove 36 for assisting the mold assembly 2 in cooling the injection material. A cleaning member 33 for cleaning the material attached to the left side of the core pulling block 32 is installed on the support frame 1.

[0024] The slider assembly 3 also includes a second return pipe 35 and a second water inlet pipe 37 installed on the right side of the core pulling block 32. The second return pipe 35 is used to drain water from the second cooling tank 36, and the second water inlet pipe 37 is used to supply water to the second cooling tank 36. The second return pipe 35 is supplied with water by an external water supply pump. Two groups of water pipes 34 are provided on the inner side of the core pulling block 32 for connecting the second cooling tank 36, the second water inlet pipe 37, and the second return pipe 35. The right side of the lower mold 21 and the upper mold 22 are both provided with a core pulling groove that is slidably connected to the core pulling block 32. The cleaning member 33 is located on the right side of the lower mold 21 and the upper mold 22.

[0025] The cleaning member 33 includes a cylinder assembly 331 vertically mounted on the support frame 1, a scraper 332 for scraping the left side of the core pulling block 32 is mounted on the top of the cylinder assembly 331, and a frame 333 for stripping attached impurities is mounted on the support frame 1 near the outer side of the core pulling block 32 and slidingly connected with the scraper 332; the core pulling block 32 is driven by the cylinder assembly 31 to be inserted into the mold cavity at a suitable depth through the core pulling groove on the right side of the lower mold 21 and the upper mold 22. After the injection molding is completed, the water introduced into the second water inlet pipe 37 by the water supply pump is introduced into the core pulling through the water pipe 34. The second cooling tank 36 in the block 32 absorbs heat from the inner surface of the molten material through the core pulling block 32 through heat exchange. After the material is formed, the cylinder assembly 31 adjusts the position of the core pulling block 32 so that the core pulling block 32 is pulled out from the lower mold 21 and the upper mold 22. The lower mold 21 and the upper mold 22 scrape and clean the outer surface of the core pulling block 32. After the left side of the core pulling block 32 is located at the appropriate position at the lower end of the scraper 332, the cylinder assembly 331 adjusts the height of the scraper 332 so that the scraper 332 scrapes and cleans the left side of the core pulling block 32.

[0026] The second embodiment differs from the first embodiment mainly in that:

[0027] The mold assembly 2 also includes two sets of first water inlet pipes 25 supplied by an external water supply pump. The two sets of first water inlet pipes 25 are respectively arranged at the rear sides of the lower mold 21 and the upper mold 22 for supplying water to the first cooling tank 24. The front sides of the lower mold 21 and the upper mold 22 are installed with first return pipes 26 for draining water from the first cooling tank 24. The left side of the support frame 1 is slidably connected to an injection nozzle 23 connected to the injection end of an external injection molding machine and used for injection molding inside the lower mold 21 and the upper mold 22.

[0028] The first cooling tank 24 is connected to the first water inlet pipe 25 and the first return pipe 26 respectively. The upper end of the upper mold 22 is connected to a mounting plate for connecting an external hydraulic cylinder assembly. The first water inlet pipe 25, the first return pipe 26, the second water inlet pipe 37, and the second return pipe 35 are all corrugated pipes. The left side of the lower mold 21 and the upper mold 22 are provided with an injection groove slidably connected to the injection nozzle 23, so that the injection molding machine can inject an appropriate amount of molten material into the space between the mold cavities of the lower mold 21 and the upper mold 22 and the core pulling block 32 through the injection nozzle 23. After the injection molding is completed, water is supplied to the second water inlet pipe 37 and the two groups of first water inlet pipes 25 through an external water supply pump. The two groups of first water inlet pipes 25 inject water into the first cooling tank 24 in the interlayer of the lower mold 21 and the upper mold 22 respectively. The water flowing through the first cooling tank 24 absorbs heat on the outer surface of the molten material through heat exchange, thereby accelerating the molding of the molten material.

[0029] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0030] When in use, the user fixes the upper mold 22 to the lower end of the external hydraulic cylinder assembly through the mounting plate, connects the first water inlet pipe 25 and the second water inlet pipe 37 to the external water supply pump, connects the first return pipe 26 and the second return pipe 35 to the external water supply end, inserts the injection nozzle 23 at the discharge end of the injection molding machine into the injection hole on the left side of the lower mold 21 and the upper mold 22, closes the lower mold 21 and the upper mold 22 through the external hydraulic cylinder assembly, and drives the core pulling block 32 through the core pulling groove on the right side of the lower mold 21 and the upper mold 22 through the oil cylinder assembly 31 to insert the mold The cavity has an appropriate depth, and the injection molding machine injects an appropriate amount of molten material into the space formed between the lower mold 21 and the upper mold 22 and the core pulling block 32 through the injection nozzle 23. After the injection is completed, the external water supply pump supplies water to the second water inlet pipe 37 and the two sets of first water inlet pipes 25. The two sets of first water inlet pipes 25 inject water into the first cooling tank 24 in the interlayer of the lower mold 21 and the upper mold 22 respectively. The water flowing through the first cooling tank 24 absorbs heat on the outer surface of the molten material through heat exchange, and then the water flows back to the water source through the first return pipe 26;

[0031] The second water inlet pipe 37 introduces water into the second cooling tank 36 in the core pulling block 32 through the water pipe 34. The water flowing through the second cooling tank 36 absorbs heat from the inner surface of the molten material through the core pulling block 32 through heat exchange, and then flows back to the water source through the second return pipe 35. By absorbing heat from the inner and outer surfaces of the molten material, the molding of the molten material is accelerated. After the molding of the material is completed, the external water supply pump is turned off, and the oil cylinder assembly 31 is used to adjust the position of the core pulling block 32 so that the core pulling block 32 is aligned with the lower mold 21 and the upper mold 2 2. During this process, the lower mold 21 and the upper mold 22 scrape the outer surface of the core pulling block 32 to promote the falling off of the attached residual material. After the left side of the core pulling block 32 is located at the appropriate position at the lower end of the scraper 332, the cylinder assembly 331 adjusts the height of the scraper 332 so that the scraper 332 scrapes the left side of the core pulling block 32 to promote the falling off of the attached material on the left side of the core pulling block 32. The hydraulic cylinder assembly adjusts the height of the upper mold 22 so that the upper mold 22 is completely separated from the lower mold 21, and the cooled and molded injection molded part is taken out.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single-slider core-pulling device for an injection mold, comprising a support frame (1), characterized in that: The upper end of the support frame (1) is connected to a processing part for injection mold molding, and the processing part includes: A mold assembly (2) is mounted on the support frame (1) and is used to provide an injection space for the injection end and provide a cooling treatment for the outside of the molten material. The mold assembly (2) includes a lower mold (21) mounted on the left end of the upper side of the support frame (1). The upper end of the lower mold (21) is slidably connected to the upper mold (22). The inner sides of the lower mold (21) and the upper mold (22) are both provided with a first cooling groove (24) for cooling by passing water. A slider assembly (3) is installed on the right side of the support frame (1) and is used to assist the mold assembly (2) in adjusting the injection molding space and accelerating the cooling. The slider assembly (3) includes a cylinder assembly (31) installed horizontally on the right side of the support frame (1). A core pulling block (32) for adjusting the mold cavity space between the lower mold (21) and the upper mold (22) is installed on the left extended end of the cylinder assembly (31). The inner interlayer of the core pulling block (32) is provided with a second cooling groove (36) for assisting the mold assembly (2) in cooling the injection molding material. A cleaning member (33) for cleaning the material attached to the left side of the core pulling block (32) is installed on the support frame (1).

2. The single-slider core-pulling device for an injection mold according to claim 1, characterized in that: The mold assembly (2) further comprises two groups of first water inlet pipes (25) supplied with water by an external water supply pump. The two groups of the first water inlet pipes (25) are respectively arranged at the rear side of the lower mold (21) and the upper mold (22) for supplying water to the first cooling tank (24). The front side of the lower mold (21) and the upper mold (22) is provided with a first return pipe (26) for leading water out of the first cooling tank (24). The left side of the support frame (1) is slidably connected to an injection nozzle (23) connected to an injection end of an external injection molding machine and used for injection molding inside the lower mold (21) and the upper mold (22).

3. The single-slider core-pulling device for an injection mold according to claim 2, characterized in that: The first cooling tank (24) is communicated with the first water inlet pipe (25) and the first return pipe (26) respectively. The upper end of the upper mold (22) is connected to a mounting plate for connecting to an external hydraulic cylinder assembly. The left sides of the lower mold (21) and the upper mold (22) are both provided with an injection groove slidably connected to the injection nozzle (23).

4. The single-slider core-pulling device for an injection mold according to claim 1, characterized in that: The slider assembly (3) further comprises a second return pipe (35) and a second water inlet pipe (37) installed on the right side of the core pulling block (32); the second return pipe (35) is used to lead water out of the second cooling tank (36); the second water inlet pipe (37) is used to supply water to the second cooling tank (36); the second return pipe (35) is supplied with water by an external water supply pump; two groups of water pipes (34) for connecting the second cooling tank (36), the second water inlet pipe (37) and the second return pipe (35) are provided on the inner side of the core pulling block (32).

5. The single-slider core-pulling device for an injection mold according to claim 1, characterized in that: The right sides of the lower mold (21) and the upper mold (22) are both provided with core pulling grooves slidably connected to the core pulling blocks (32), and the cleaning member (33) is located on the right sides of the lower mold (21) and the upper mold (22).

6. The single-slider core-pulling device for an injection mold according to claim 1, characterized in that: The cleaning member (33) comprises a cylinder assembly (331) vertically mounted on a support frame (1); a scraper (332) for scraping the left side of the core pulling block (32) is mounted on the top of the cylinder assembly (331); and a frame (333) for stripping attached impurities and slidably connected to the scraper (332) is mounted on the support frame (1) near the outer side of the core pulling block (32).

Images