Inclined sliding elastic block core-pulling mechanism of automobile exterior trimming part injection mold

Abstract

The utility model relates to the technical field of mold processing, in particular to an inclined sliding elastic block core-pulling mechanism of an automobile exterior trimming part injection mold, which comprises a lower mold, an upper mold is mounted on the outer wall of the lower mold through a fixing column, a support column is mounted on the inner wall of the upper mold, and an ejector pin is mounted on one side of the support column and positioned on the inner wall of the lower mold. After the mold is opened, the limiting spring is reset, the elastic block is forced to eject outwards, and meanwhile, the sliding sheet is driven to contract inwards along the track of the guide post, so that the barb of the sliding sheet is separated from an injection molding part, the demolding action is completed, and then the ejector plate moves to drive the plurality of support posts arranged on the ejector plate to support and open the mold; meanwhile, the ejector pin and the ejector pin on the ejector pin synchronously carry out ejection operation on the injection-molded part; the injection-molded part is ejected out through the ejection assembly, when the injection-molded part is moved out of the lower mold, a material at the joint of the injection-molded part and the communicating hole is cut off by the cutting blade, then burrs are cut off when the injection-molded part is demolded, and the practicability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of mold processing, in particular to an inclined sliding elastic block core-pulling mechanism for an injection mold of an automobile exterior part. Background Technique

[0002] In the manufacturing of injection molds for automobile exterior parts, the demolding injection mold technology is widely used. However, there is an obvious problem in the actual application of this technology, that is, after the initial injection molding is completed, there will be many inconveniences during demolding. This kind of inconvenience is mainly reflected in the increased complexity of the demolding operation, which requires more delicate operations and time investment, undoubtedly increasing the overall production cost and reducing the production efficiency; and during the demolding stage, due to the raw materials at the injection holes of the injection mold being tightly adhered to the injection molded parts, it leads to the need for cutting excess scraps after the injection molded parts are demolded. This process is not only time-consuming but also laborious.

[0003] Therefore, an inclined sliding elastic block core-pulling mechanism for an injection mold of an automobile exterior part is needed to improve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an inclined sliding elastic block core-pulling mechanism for an injection mold of an automobile exterior part to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] An inclined sliding elastic block core-pulling mechanism for an injection mold of an automobile exterior part, including a lower mold, an upper mold is installed on the outer wall of the lower mold through a fixed column, a support column is installed on the inner wall of the upper mold, a thimble is installed on one side of the support column and on the inner wall of the lower mold, a material injection hole is opened on the outer wall of the lower mold directly above the support column, an injection groove is opened on the outer wall of the lower mold on one side of the material injection hole, a baffle is embedded and installed on the outer wall of the lower mold, a high-precision temperature sensor is embedded and installed on the outer wall of the baffle, and a communication hole is opened on the outer wall of the baffle, a cutting blade is installed at the port of the communication hole, an injection molded part is installed on the inner wall of the injection groove, a top-out component is embedded and installed on one side of the injection molded part and on the inner wall of the lower mold, a control panel is installed on the outer wall of the upper mold, a thimble plate is installed at one end of the thimble and on the inner wall of the lower mold, and the outer wall of the thimble plate is connected to the support column;

[0007] The ejecting assembly includes an inclined slider which is installed on the inner wall of the lower mold. A jacket cylinder is slidably connected to the inner wall of the inclined slider. A guiding column is embedded and installed on the inner wall of the jacket cylinder. A first elastic block is slidably connected to the port of the guiding column. A sliding piece is installed on the inner wall of the first elastic block on one side of the guiding column. A spring piece is embedded and installed on the outer wall of the guiding column in the inner cavity of the first elastic block. A spring guide core is installed on the inner wall of the jacket cylinder. One end of the spring guide core is connected to the first elastic block. A limiting spring is installed on the outer wall of the spring guide core on one side of the first elastic block.

[0008] As a preferred solution of the present utility model, the control panel is electrically connected to a high-precision temperature sensor through a wire. Multiple support columns are provided and are respectively located on the inner wall of the lower mold. Multiple ejector pins are provided and are respectively located on the inner wall of the lower mold.

[0009] As a preferred solution of the present utility model, the ejector pin is located directly below the injection molded part. The injection hole is located in the middle of the lower mold, and the connection between the injection hole and the communication hole is a communicating structure.

[0010] As a preferred solution of the present utility model, two baffle plates are provided and are respectively located on the outer wall of the lower mold. Two injection molds are provided and are respectively located on the outer wall of the lower mold.

[0011] As a preferred solution of the present utility model, the cutting blade is located on one side of the injection molded part. The first elastic block is located directly below the injection molded part.

[0012] As a preferred solution of the present utility model, two spring guide cores are provided and are respectively located on the inner wall of the jacket cylinder. Two spring pieces are provided and are respectively located on the opposite outer walls of the guiding column.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, through the ejecting assembly in the inclined sliding and elastic block core-pulling mechanism of the automotive exterior parts injection mold, and after the mold is opened, the limiting spring resets, forcing the first elastic block to pop outwards, and at the same time driving the sliding piece to contract inwards along the track of the guiding column, so as to realize the separation of the barb of the sliding piece from the injection molded part and complete the demolding action. Subsequently, the movement of the ejector pin plate drives multiple support columns arranged on the ejector pin plate to support the mold opening, and at the same time, the ejector pins on the ejector pins synchronously perform the ejecting operation on the injection molded part, which is beneficial to solving the many inconveniences encountered during demolding after initial injection molding. These inconveniences are mainly reflected in the increased complexity of the demolding operation, which requires more delicate operations and time investment, undoubtedly increasing the overall production cost and reducing the production efficiency.

[0015] 2. In the present utility model, through the cutting blade in the inclined sliding ejector core-pulling mechanism of the automotive exterior injection mold, and when the injection molded part is demolded by the matching of the ejector pin and the support column, the ejecting assembly ejects the injection molded part. When the injection molded part moves out of the lower mold, the material at the connection between the injection molded part and the communication hole is cut off by the cutting blade. Furthermore, when the injection molded part is demolded, the cutting burrs are removed, and the practicability is better, thus being beneficial to solving the problem that in the demolding stage, due to the raw material at the injection hole of the injection mold being tightly adhered to the injection molded part, it leads to the operation of cutting the redundant corner materials still being required after the injection molded part is demolded. This process is not only time-consuming but also laborious. Description of the Drawings

[0016] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 Schematic diagram of the structure of the lower mold of the present utility model;

[0018] Figure 3 Schematic diagram of the structure of the support column of the present utility model;

[0019] Figure 4 Schematic diagram of the dissected structure of the lower mold of the present utility model;

[0020] Figure 5 Schematic diagram of the structure of the ejecting assembly of the present utility model;

[0021] Figure 6 Schematic diagram of the dissected structure of the outer sleeve of the present utility model;

[0022] Figure 7 Schematic diagram of the structure of the baffle at position A of the present utility model.

[0023] In the figure: 1. Lower mold; 2. Upper mold; 3. Support column; 4. Ejector pin; 5. Injection hole; 6. Injection groove; 7. Baffle; 8. High-precision temperature sensor; 9. Communication hole; 10. Cutting blade; 11. Injection molded part; 12. Ejecting assembly; 1201. Inclined slider; 1202. Outer sleeve; 1203. Guide post; 1204. Ejector block 1; 1205. Slide plate; 1206. Elastic sheet; 1207. Spring guide core; 1208. Limit spring; 13. Control panel; 14. Ejector pin plate. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Example, please refer to Figures 1-7 , the present utility model provides a technical solution:

[0026] An inclined sliding elastic block core-pulling mechanism for an injection mold of an automotive exterior part, including a lower mold 1, an upper mold 2 is installed on the outer wall of the lower mold 1 through a fixing column, a support column 3 is installed on the inner wall of the upper mold 2, a thimble 4 is installed on one side of the support column 3 and on the inner wall of the lower mold 1, a material injection hole 5 is opened on the outer wall of the lower mold 1 directly above the support column 3, an injection groove 6 is opened on the outer wall of the lower mold 1 on one side of the material injection hole 5, a baffle 7 is embedded and installed on the outer wall of the lower mold 1, a high-precision temperature sensor 8 is embedded and installed on the outer wall of the baffle 7, and a communication hole 9 is opened on the outer wall of the baffle 7, a cutting blade 10 is installed at the port of the communication hole 9, an injection part 11 is installed on the inner wall of the injection groove 6, an ejection assembly 12 is embedded and installed on one side of the injection part 11 and on the inner wall of the lower mold 1, a control panel 13 is installed on the outer wall of the upper mold 2, a thimble plate 14 is installed at one end of the thimble 4 and on the inner wall of the lower mold 1, and the outer wall of the thimble plate 14 is connected to the support column 3;

[0027] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the ejection assembly 12 includes an inclined slider 1201, the inclined slider 1201 is installed on the inner wall of the lower mold 1, an outer sleeve 1202 is slidably connected to the inner wall of the inclined slider 1201, a guide post 1203 is embedded and installed on the inner wall of the outer sleeve 1202, and a first elastic block 1204 is slidably connected to the port of the guide post 1203. The first elastic block 1204 is located directly below the injection part 11. A sliding piece 1205 is installed on one side of the guide post 1203 and on the inner wall of the first elastic block 1204. A spring piece 1206 is embedded and installed in the inner cavity of the first elastic block 1204 and on the outer wall of the guide post 1203. There are two groups of spring pieces 1206 and they are respectively located on the opposite outer walls of the guide post 1203. A spring guide core 1207 is installed on the inner wall of the outer sleeve 1202. There are two groups of spring guide cores 1207 and they are respectively located on the inner wall of the outer sleeve 1202. One end of the spring guide core 1207 is connected to the first elastic block 1204. A limiting spring 1208 is installed on one side of the first elastic block 1204 and on the outer wall of the spring guide core 1207.

[0028] Further, the control panel 13 is electrically connected to a high-precision temperature sensor 8 through a wire. A plurality of support columns 3 are provided and are respectively located on the inner wall of the lower mold 1. A plurality of ejector pins 4 are provided and are respectively located on the inner wall of the lower mold 1. The ejector pins 4 are located directly below the injection molded part 11. The injection hole 5 is located at the exact middle position of the lower mold 1, and the connection between the injection hole 5 and the communication hole 9 is a communicating structure. Two baffle plates 7 are provided and are respectively located on the outer wall of the lower mold 1. Two injection grooves 6 are provided and are respectively located on the outer wall of the lower mold 1. The cutting blade 10 is located on one side of the injection molded part 11;

[0029] Further, the high-precision temperature sensor 8 monitors the temperature of the injection molded part 11 in real time. At the same time, the high-precision temperature sensor 8 generates an electrical signal that is conducted to the control panel 13 through a wire, and the control panel 13 displays the temperature data in real time.

[0030] The working process of the present utility model: When the inclined sliding elastic block core-pulling mechanism of the injection mold for automotive exterior parts designed by this solution is working, under the action that the control panel 13 is electrically connected to a high-precision temperature sensor 8 through a wire, the device is powered on. After the mold is opened, a jacket tube 1202 is slidably connected to the inner wall of the inclined slider 1201. A guide post 1203 is embedded and installed on the inner wall of the jacket tube 1202. A first elastic block 1204 is slidably connected to the port of the guide post 1203. A sliding piece 1205 is installed on one side of the guide post 1203 and inside the inner wall of the first elastic block 1204. A spring piece 1206 is embedded and installed on the outer wall of the guide post 1203 and inside the inner cavity of the first elastic block 1204. A spring guide core 1207 is installed on the inner wall of the jacket tube 1202. One end of the spring guide core 1207 is connected to the first elastic block 1204. Under the action of a limiting spring 1208 installed on the outer wall of the spring guide core 1207 and on one side of the first elastic block 1204, the limiting spring 1208 resets, forcing the first elastic block 1204 to pop outwards, and at the same time driving the sliding piece 1205 to contract inwards along the track of the guide post 1203, so as to realize the separation of the barb of the sliding piece 1205 from the injection molded part 11 and complete the demolding action. At one end of the ejector pin 4 and on the inner wall of the lower mold 1, an ejector pin plate 14 is installed. Under the action of the support column 3 connected to the outer wall of the ejector pin plate 14, then the movement of the ejector pin plate 14 is used to drive a plurality of support columns 3 arranged on the ejector pin plate 14 to support the mold opening, and at the same time, the ejector pins 4 on the ejector pin plate 14 synchronously perform an ejecting operation on the injection molded part 11, which is beneficial to solving the many inconveniences encountered during demolding after preliminary injection molding. Such inconveniences are mainly reflected in the increased complexity of the demolding operation, which requires more delicate operations and time investment, undoubtedly increasing the overall production cost and reducing the production efficiency.

[0031] A material injection hole 5 is provided directly above the support column 3 and on the outer wall of the lower mold 1. An injection molding groove 6 is provided on one side of the material injection hole 5 and on the outer wall of the lower mold 1. A baffle 7 is embedded and installed on the outer wall of the lower mold 1. A high-precision temperature sensor 8 is embedded and installed on the outer wall of the baffle 7. A communication hole 9 is provided on the outer wall of the baffle 7. A cutting blade 10 is installed at the port of the communication hole 9. Under the action of an injection molded part 11 installed on the inner wall of the injection molding groove 6, when the injection molded part 11 is demolded by matching the ejector pin 4 and the support column 3, its ejecting assembly 12 ejects the injection molded part 11. When the injection molded part 11 is removed from the lower mold 1, the material at the connection between the injection molded part 11 and the communication hole 9 is cut off by the cutting blade 10. Furthermore, when the injection molded part 11 is demolded, the cutting burrs are removed, and the practicability is better, thus being beneficial to solving the problem that in the demolding stage, due to the raw material at the injection hole of the injection mold being tightly adhered to the injection molded part, it leads to the operation of cutting the redundant corner materials still being required after the injection molded part is demolded. This process is not only time-consuming but also laborious.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inclined sliding elastic block core-pulling mechanism for an injection mold of an automotive exterior part, including a lower mold (1), characterized in that: The upper mold (2) is installed on the outer wall of the lower mold (1) through fixing columns. A support column (3) is installed on the inner wall of the upper mold (2). A ejector pin (4) is installed on the inner wall of the lower mold (1) on one side of the support column (3). A material injection hole (5) is formed on the outer wall of the lower mold (1) directly above the support column (3). An injection molding groove (6) is formed on the outer wall of the lower mold (1) on one side of the material injection hole (5). A baffle (7) is embedded and installed on the outer wall of the lower mold (1). A high-precision temperature sensor (8) is embedded and installed on the outer wall of the baffle (7), and a communication hole (9) is formed on the outer wall of the baffle (7). A cutting blade (10) is installed at the port of the communication hole (9). An injection molding part (11) is installed on the inner wall of the injection molding groove (6). An ejection assembly (12) is embedded and installed on the inner wall of the lower mold (1) on one side of the injection molding part (11). A control panel (13) is installed on the outer wall of the upper mold (2). An ejector pin plate (14) is installed on the inner wall of the lower mold (1) at one end of the ejector pin (4). The outer wall of the ejector pin plate (14) is connected to the support column (3); The ejection assembly (12) includes an inclined slider (1201). The inclined slider (1201) is installed on the inner wall of the lower mold (1). An outer sleeve (1202) is slidably connected to the inner wall of the inclined slider (1201). A guide post (1203) is embedded and installed on the inner wall of the outer sleeve (1202), and a first elastic block (1204) is slidably connected to the port of the guide post (1203). A sliding piece (1205) is installed on the inner wall of the first elastic block (1204) on one side of the guide post (1203). A spring piece (1206) is embedded and installed on the outer wall of the guide post (1203) in the inner cavity of the first elastic block (1204). A spring guide core (1207) is installed on the inner wall of the outer sleeve (1202). One end of the spring guide core (1207) is connected to the first elastic block (1204). A limiting spring (1208) is installed on the outer wall of the first elastic block (1204) on one side of the spring guide core (1207).

2. The inclined sliding elastic block core-pulling mechanism of an automotive exterior trim injection mold according to claim 1, wherein: The control panel (13) is electrically connected to the high-precision temperature sensor (8) through a wire. Multiple groups of support columns (3) are provided and are respectively located on the inner wall of the lower mold (1). Multiple groups of ejector pins (4) are provided and are respectively located on the inner wall of the lower mold (1).

3. The inclined sliding elastic block core-pulling mechanism of an automotive exterior trim injection mold according to claim 1, characterized in that: The ejector pin (4) is located directly below the injection molding part (11). The material injection hole (5) is located at the center position of the lower mold (1), and the connection between the material injection hole (5) and the communication hole (9) is a communication structure.

4. The inclined sliding elastic block core-pulling mechanism of an automotive exterior part injection mold according to claim 1, characterized in that: Two groups of baffles (7) are provided and are respectively located on the outer wall of the lower mold (1). Two groups of injection molding grooves (6) are provided and are respectively located on the outer wall of the lower mold (1).

5. The inclined sliding elastic block core-pulling mechanism of an automotive exterior trim injection mold according to claim 1, characterized in that: The cutting blade (10) is located on one side of the injection molding part (11). The first elastic block (1204) is located directly below the injection molding part (11).

6. The angled sliding ejector core pulling mechanism of an automotive exterior part injection mold according to claim 1, characterized in that: There are two sets of the spring guide core (1207) which are respectively located on the inner wall of the outer sleeve (1202), and there are two sets of the elastic pieces (1206) which are respectively located on the opposite outer walls of the guide posts (1203).

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