Thermostat housing forming die

Abstract

The application relates to a thermostat shell forming die for vehicles, which comprises an upper fixing plate, an upper die seat, a die core, a lower die seat and a lower fixing plate arranged in sequence, the die core comprises an upper die core and a lower die core, a flow channel is formed in the upper fixing plate and is communicated with the upper die core, the flow channel is used for flowing in injection material, at least one thread line is arranged on the upper die core and the lower die core, and the thread lines are circular when the upper die core and the lower die core are closed; the thermostat shell forming die further comprises a core pulling assembly and a driving mechanism for driving the core pulling assembly to slide, and the driving mechanism drives the core pulling assembly to perform core pulling on the die core after the upper die seat and the lower die seat are closed and the injection is completed and cooled. The application has the effects that the thread line is formed without machining operation after the thermostat shell forming die is formed, and the thermostat forming step is reduced.

Description

Technical Field

[0001] This application relates to the field of mold technology, and in particular to a mold for forming a thermostat housing for an automobile. Background Technology

[0002] The thermostat housing is a key component of the automotive cooling system, mainly used to install and secure the thermostat, ensuring stable engine temperature.

[0003] After the common thermostat housing is formed by the molding die, it still needs to undergo subsequent machining processes to form thread lines on the surface of the thermostat housing, thus increasing the number of machining steps in the thermostat production process. Utility Model Content

[0004] To reduce the number of steps in thermostat molding, this application provides a molding die for automotive thermostat housings.

[0005] This application provides a molding die for a vehicle thermostat housing, which adopts the following technical solution:

[0006] A molding die for an automotive thermostat housing includes an upper fixed plate, an upper mold base, a mold core, a lower mold base, and a lower fixed plate arranged sequentially. The mold core includes an upper mold core and a lower mold core. A flow channel is provided on the upper fixed plate, and the flow channel is connected to the upper mold core for injection molding material to flow into. At least one thread is provided on both the upper and lower mold cores. When the upper and lower mold cores are closed, the thread forms a circle. The die also includes a core-pulling assembly and a driving mechanism for sliding the core-pulling assembly. After the upper and lower mold bases are closed and the injection molding is completed and cooled, the driving mechanism drives the core-pulling assembly to pull the mold core.

[0007] By adopting the above technical solution, both the upper and lower mold cores are provided with threaded lines. When the mold is closed for injection molding, the threaded lines form a circle. After the injection molding cools, the drive mechanism drives the core-pulling assembly to complete the core-pulling of the mold core, and at the same time, the threaded lines are formed. The threaded lines are used for the thermostat housing to be threadedly connected to the vehicle. After the thermostat housing mold is formed, no machining operation is required to form the threaded lines, reducing the thermostat forming steps.

[0008] Optionally, the mold core is provided with two forming cavities, the forming cavities including a first forming cavity and a second forming cavity, and the upper mold core and the lower mold core are each provided with two threaded lines, the threaded lines being located inside the forming cavity.

[0009] By adopting the above technical solution, the mold core is provided with two forming cavities, which allows the mold to form two thermostat shells at one time.

[0010] Optionally, the two molding cavities have different structures. The core-pulling assembly includes a first core-pulling component and a second core-pulling component. The lower mold base has a first sliding groove for the first core-pulling component to slide, and the first core-pulling component pulls the core of the first molding cavity. The lower mold base has a second sliding groove for the second core-pulling component to slide, and the second core-pulling component pulls the core of the second molding cavity.

[0011] By adopting the above technical solution, two thermostat shells with different structures are formed in two molding cavities. The two thermostat shells are used in different positions, resulting in structural differences. The first core-pulling component pulls the core from the first molding cavity, and the second core-pulling component pulls the core from the second molding cavity, forming the hollow part of the thermostat shell through core pulling.

[0012] Optionally, the core-pulling assembly further includes a third core-pulling component, and the lower mold base is provided with a third sliding groove for the third core-pulling assembly to slide, and the third core-pulling component pulls the core from the first molding cavity and the second molding cavity simultaneously.

[0013] By adopting the above technical solution, the third core-pulling component pulls the core from the first forming cavity and the second forming cavity at the same time, and the core-pulling of the two thermostat shells is achieved in one step. The two thermostat shells are hollowed out by the third core-pulling component, and the thermostat shells are shaped.

[0014] Optionally, the driving mechanism includes a first cylinder, a second cylinder, and a third cylinder. The first cylinder is located at the end of the first core-pulling member away from the first molding cavity, the second cylinder is located at the end of the second core-pulling member away from the second molding cavity, and the third cylinder is located at the end of the third core-pulling member away from the mold core.

[0015] By adopting the above technical solution, the thermostat shell is extracted by setting the first cylinder, the second cylinder, and the third cylinder, so that the thermostat shell is formed. The cylinder is easy to install and the structure is simple.

[0016] Optionally, the third core-pulling component has a forming groove, which is used for forming by the first forming cavity and the second forming cavity.

[0017] By adopting the above technical solution, the forming groove facilitates the formation of holes after the thermostat shell is formed, eliminating the need for a hole-forming step.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. After the mold is injected and cooled, the thread line is formed. After the thermostat housing is formed by the mold, there is no need to process it again to form the thread line, thus reducing the thermostat forming steps;

[0020] 2. Two thermostat shells with different molding structures are formed by two core-pulling components to form the hollow parts of the two thermostat shells;

[0021] 3. The third core-pulling component pulls the core from the first and second forming cavities simultaneously, achieving core-pulling and forming of two thermostat shells in one operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a vehicle thermostat housing molding die according to an embodiment.

[0023] Figure 2 This is a schematic diagram of the upper mold base and upper mold core in an embodiment.

[0024] Figure 3 This is a schematic diagram of the structure of the lower mold base and the lower mold core in an embodiment.

[0025] Figure 4 This is a schematic diagram of the structure of the third core-pulling component in the embodiment.

[0026] Figure 5 This is a schematic diagram of the product structure after molding, as shown in the embodiment.

[0027] Explanation of reference numerals in the attached drawings: 1. Upper fixing plate; 2. Upper mold base; 3. Mold core; 31. Upper mold core; 32. Lower mold core; 4. Lower mold base; 5. Lower fixing plate; 61. Flow channel; 62. Threaded line; 63. First sliding groove; 64. Second sliding groove; 65. Third sliding groove; 66. Forming groove; 67. Slot; 7. Core pulling assembly; 71. First core pulling component; 72. Second core pulling component; 73. Third core pulling component; 8. Drive mechanism; 81. First cylinder; 82. Second cylinder; 83. Third cylinder; 9. Forming cavity; 91. First forming cavity; 92. Second forming cavity. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] This application discloses a molding die for an automotive thermostat housing. (Refer to...) Figures 1-3 A molding die for an automotive thermostat housing includes an upper fixed plate 1, an upper mold base 2, a mold core 3, a lower mold base 4, and a lower fixed plate 5 arranged sequentially. The mold core 3 includes an upper mold core 31 and a lower mold core 32. A flow channel 61 is provided on the upper fixed plate 1, connecting to the upper mold core 31, and allowing injection molding material to flow into the flow channel 61. At least one threaded line 62 is provided on both the upper mold core 31 and the lower mold core 32. When the upper mold core 31 and the lower mold core 32 are closed, the threaded line 62 forms a circle. The mold core 3 has two molding cavities 9 with different structures. Each molding cavity 9 includes a first molding cavity 91 and a second molding cavity 92. Two threaded lines 62 are fixed on both the upper mold core 31 and the lower mold core 32, and the threaded lines 62 are located within the molding cavities 9.

[0030] Reference Figures 1-3A molding die for an automotive thermostat housing also includes a core-pulling assembly 7 and a drive mechanism 8 for sliding the core-pulling assembly 7. After the upper mold base 2 and lower mold base 4 are closed and the injection molding is completed and cooled, the drive mechanism 8 drives the core-pulling assembly 7 to pull the core 3. The core-pulling assembly 7 includes a first core-pulling component 71 and a second core-pulling component 72. Both the lower mold base 4 and the upper mold base 2 have a first sliding groove 63 for the first core-pulling component 71 to slide, and the first core-pulling component 71 pulls the core into the first molding cavity 91. Both the lower mold base 4 and the upper mold base 2 have a second sliding groove 64 for the second core-pulling component 72 to slide, and the second core-pulling component 72 pulls the core into the second molding cavity 92.

[0031] Reference Figures 2-5 The core-pulling assembly 7 also includes a third core-pulling component 73. Both the lower mold base 4 and the upper mold base 2 of the third core-pulling component 73 have third sliding grooves 65 for sliding of the third core-pulling assembly 7. The third core-pulling component 73 simultaneously pulls the core from the first molding cavity 91 and the second molding cavity 92. A molding groove 66 is provided on the third core-pulling component 73, which shapes the first molding cavity 91 and the second molding cavity 92, forming holes in the thermostat shell. Anti-detachment blocks are provided on both sides of the first core-pulling component 71, the second core-pulling component 72, and the third core-pulling component 73. Sliding grooves are provided on the side walls of the first sliding groove 63, the second sliding groove 64, and the third sliding groove 65 for sliding of the anti-detachment blocks, which slide along the length of the sliding grooves.

[0032] Reference Figures 1-5 The drive mechanism 8 includes a first cylinder 81, a second cylinder 82, and a third cylinder 83. The first cylinder 81 is fixed to the end of the first core-pulling member 71 away from the first molding cavity 91. The second cylinder 82 is fixed to the end of the second core-pulling member 72 away from the second molding cavity 92. The third cylinder 83 is fixed to the end of the third core-pulling member 73 away from the mold core 3. The upper mold core 31 and the lower mold core 32 are provided with slots 67 for thermostat shell forming blocks.

[0033] The implementation principle of a vehicle thermostat housing molding die in this application embodiment is as follows: When the thermostat housing needs to be injection molded, both the upper mold core 31 and the lower mold core 32 are provided with thread lines 62, so that when the mold is closed, the injection material enters the mold core 3 through the flow channel 61, and the mold is formed. At the same time as the mold is formed, the thread lines 62 are formed. The first cylinder 81 drives the first core-pulling component 71 to pull the core, the second cylinder 82 drives the second core-pulling component 72 to pull the core, and the third cylinder 83 drives the third core-pulling component 73 to pull the core, so that the thermostat housing is completely formed. After cooling and forming, the mold is opened, and the thermostat housing is directly taken out. After the thermostat housing mold is formed, no machining operation is required to form the thread lines 62, so that the thermostat housing can be threadedly connected to the vehicle, reducing the thermostat forming steps.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A molding die for a vehicle thermostat housing, comprising an upper fixing plate (1), an upper mold base (2), a mold core (3), a lower mold base (4), and a lower fixing plate (5) arranged sequentially, characterized in that: The mold core (3) includes an upper mold core (31) and a lower mold core (32). The upper fixed plate (1) is provided with a flow channel (61), which is connected to the upper mold core (31). The flow channel (61) is for the injection molding material to flow in. The upper mold core (31) and the lower mold core (32) are each provided with at least one thread (62). When the upper mold core (31) and the lower mold core (32) are closed, the thread (62) forms a circle. The mold core also includes a core-pulling assembly (7) and a driving mechanism (8) for sliding the core-pulling assembly (7). After the upper mold base (2) and the lower mold base (4) are closed and the injection molding is completed and cooled, the driving mechanism (8) drives the core-pulling assembly (7) to pull the mold core (3).

2. The automotive thermostat housing molding die according to claim 1, characterized in that: The mold core (3) is provided with two forming cavities (9), the forming cavity (9) includes a first forming cavity (91) and a second forming cavity (92), and the upper mold core (31) and the lower mold core (32) are each provided with two thread lines (62), the thread lines (62) are located inside the forming cavity (9).

3. The automotive thermostat housing molding die according to claim 2, characterized in that: The two molding cavities (9) have different structures. The core-pulling assembly (7) includes a first core-pulling component (71) and a second core-pulling component (72). The lower mold base (4) has a first sliding groove (63) for the first core-pulling component (71) to slide. The first core-pulling component (71) pulls the core of the first molding cavity (91). The lower mold base (4) has a second sliding groove (64) for the second core-pulling component (72) to slide. The second core-pulling component (72) pulls the core of the second molding cavity (92).

4. The automotive thermostat housing molding die according to claim 3, characterized in that: The core-pulling assembly (7) further includes a third core-pulling component (73). The lower mold base (4) is provided with a third sliding groove (65) for the third core-pulling assembly (7) to slide. The third core-pulling component (73) pulls the core from the first molding cavity (91) and the second molding cavity (92) simultaneously.

5. The automotive thermostat housing molding die according to claim 4, characterized in that: The drive mechanism (8) includes a first cylinder (81), a second cylinder (82) and a third cylinder (83). The first cylinder (81) is located at the end of the first core-pulling member (71) away from the first molding cavity (91). The second cylinder (82) is located at the end of the second core-pulling member (72) away from the second molding cavity (92). The third cylinder (83) is located at the end of the third core-pulling member (73) away from the mold core (3).

6. The automotive thermostat housing molding die according to claim 4, characterized in that: The third core-pulling component (73) has a forming groove (66) for forming the first forming cavity (91) and the second forming cavity (92).

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