Die-casting die for forming shell of thermal infrared imager

Abstract

The utility model discloses a die-casting die for forming a shell of a thermal infrared imager. The die-casting die comprises a lower die and an upper die, the lower die comprises a lower die base, a lower die plate, a lower die core and an ejection mechanism; the upper die is precisely positioned through a guide pillar and is arranged right above the lower die in an up-and-down movable manner during working, and the upper die comprises an upper die plate, an upper die core and a pouring gate; a first sliding block assembly and a second sliding block assembly are arranged on the left side and the right side of the upper surface of the lower die plate respectively. According to the die-casting die, the first sliding block assembly, the second sliding block assembly and the third sliding block assembly are arranged, and the first inclined guide column, the second inclined guide column and the third inclined guide column are arranged in a matched mode to form three slide structures, so that the die-casting die can form concave structures on the three side faces of the thermal infrared imager shell at the same time, subsequent milling operation is not needed, and the production efficiency is improved. The production efficiency is effectively improved, meanwhile, the surface sand hole defect risk and the manufacturing cost after milling are greatly reduced, and the market competitiveness of products is improved.

Description

Technical Field

[0001] The utility model relates to the technology in the field of die-casting molds, in particular to a die-casting mold for forming the shell of an infrared thermal imager. Background Art

[0002] Infrared thermal imagers, with infrared thermal imaging technology leading the industry, are different from traditional cameras and monitoring devices. They can capture the imaging of heat sources at night. Infrared thermal imagers have been widely used in industries and fields such as intelligent security, infrared temperature measurement, outdoor night vision, autonomous driving, intelligent life, Internet of Things, fire rescue, and police law enforcement.

[0003] The shell of an infrared thermal imager not only has strength requirements for support, but also requires precise design angles to meet the imaging needs. Therefore, the current shells of infrared thermal imagers are generally formed by metal die-casting, such as aluminum ADC12, etc. The die-casting of the shell of an infrared thermal imager requires a die-casting mold. Currently, the main structure of the die-casting mold for forming the shell of an infrared thermal imager includes a lower mold and an upper mold; the lower mold includes a lower mold base, a lower template, a lower mold core, and an ejection mechanism. The lower template is arranged on the lower mold base, the lower mold core is arranged on the lower template, and the ejection mechanism is arranged on the lower mold base; the upper mold is arranged above the lower mold in a vertically movable manner. The upper mold includes an upper template, an upper mold core, and a casting port. The upper mold core is arranged on the upper template and is vertically aligned and cooperated with the lower mold core to form a cavity together. The casting port is arranged on the upper template and communicated with the cavity.

[0004] However, since multiple sides of the shell of an infrared thermal imager have concave structures, such as mounting holes, three-dimensional LOGOs, etc., the above die-casting mold cannot form the aforementioned concave structures during the die-casting process. After the shell of the infrared thermal imager is die-cast, subsequent milling processing is required, resulting in extremely low production efficiency and very high manufacturing costs, reducing the market competitiveness of the product. Therefore, it is necessary to study a solution to solve the above problems. Summary of the Utility Model

[0005] In view of this, aiming at the deficiencies existing in the prior art, the main purpose of the utility model is to provide a die-casting mold for forming the shell of an infrared thermal imager, which can effectively solve the problem that the existing die-casting mold cannot form concave structures during the die-casting process.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A die-casting mold for forming the housing of an infrared thermal imager, comprising a lower mold and an upper mold; the lower mold includes a lower mold base, a lower template, a lower mold core and an ejection mechanism, the lower template is arranged on the lower mold base, the lower mold core is arranged on the lower template, and the ejection mechanism is arranged on the lower mold base; the upper mold is set directly above the lower mold through precise positioning by guide pillars and can move up and down during work, the upper mold includes an upper template, an upper mold core and a casting gate, the upper mold core is arranged on the upper template and is vertically aligned and matched with the lower mold core, and the casting gate is arranged on the upper template; on the upper surface of the lower template, a first slider assembly and a second slider assembly are respectively arranged on the left and right sides, both the first slider assembly and the second slider assembly are arranged to be able to move back and forth laterally, the first slider assembly and the second slider assembly are respectively located beside the left and right sides of the lower mold core, on the front side of the upper surface of the lower template, a third slider assembly is arranged, the third slider assembly is arranged to be able to move back and forth laterally, the third slider assembly is located beside the front side of the lower mold core, the third slider assembly, the second slider assembly, the first slider assembly, the lower mold core and the upper mold core jointly form a cavity adapted to the housing of the infrared thermal imager, the casting gate is communicated with the cavity, and the ejector pin of the ejection mechanism extends into the cavity from bottom to top; on the upper template, a first inclined guide pillar, a second inclined guide pillar and a third inclined guide pillar are arranged, the first inclined guide pillar causes the first slider assembly to move back and forth laterally, the second inclined guide pillar causes the second slider assembly to move back and forth laterally, and the third inclined guide pillar causes the third slider assembly to move back and forth laterally.

[0008] As a preferred solution, a lower concave cavity is provided at the center of the upper surface of the lower template, the lower mold core is embedded in the lower concave cavity, and on the left and right sides and the front side of the upper surface of the lower template, a first chute, a second chute and a third chute are respectively recessed, the first chute, the second chute and the third chute are all communicated with the lower concave cavity, and the first slider assembly, the second slider assembly and the third slider assembly are respectively arranged to be able to slide back and forth in the first chute, the second chute and the third chute, with simple structure and convenient assembly.

[0009] As a preferred solution, the first slider assembly includes a first slider seat and a first slider, a first inclined guide pillar hole is provided on the first slider seat, the first inclined guide pillar is inserted into the first inclined guide pillar hole, and the first slider is fixed to the front side of the first slider seat and close to the lower mold core, with simple structure and convenient assembly.

[0010] As a preferred solution, the second slider assembly includes a second slider seat and a second slider, a second inclined guide pillar hole is provided on the second slider seat, the second inclined guide pillar is inserted into the second inclined guide pillar hole, and the second slider is fixed to the front side of the second slider seat and close to the lower mold core, with simple structure and convenient assembly.

[0011] As a preferred solution, the third slider assembly includes a third slide base and a third slider. A third inclined guide pillar hole is formed in the third slide base, and the third inclined guide pillar is inserted into the third inclined guide pillar hole. The third slider is fixed to the front side of the third slide base and close to the lower die core, with a simple structure and convenient assembly.

[0012] As a preferred solution, the first slider assembly, the second slider assembly, and the third slider assembly are arranged in a T shape, with a simple and compact structure.

[0013] As a preferred solution, a flow dividing cone is arranged on the upper surface of the lower template, and the flow dividing cone is located directly below the casting port so as to cooperate with the casting port to form a runner system.

[0014] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions:

[0015] By providing the first slider assembly, the second slider assembly, and the third slider assembly, and cooperating with the first inclined guide pillar, the second inclined guide pillar, and the third inclined guide pillar, three lifter structures are formed, so that the die-casting mold can simultaneously form recessed structures on three sides of the infrared thermal imager housing, eliminating the need for subsequent milling operations, effectively improving production efficiency, and at the same time greatly reducing the risk of surface sand hole defects and manufacturing costs after milling, which is beneficial to enhancing the market competitiveness of the product.

[0016] To more clearly illustrate the structural features and functions of the present utility model, the present utility model will be described in detail below with reference to the drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an assembled three-dimensional schematic diagram of a preferred embodiment of the present utility model;

[0018] Figure 2 is a cross-sectional view of a preferred embodiment of the present utility model;

[0019] Figure 3 is another cross-sectional view of a preferred embodiment of the present utility model;

[0020] Figure 4 is a partial assembled schematic diagram of a preferred embodiment of the present utility model;

[0021] Figure 5 is a three-dimensional schematic diagram of the infrared thermal imager housing in a preferred embodiment of the present utility model.

[0022] DESCRIPTION OF THE REFERENCE NUMERALS IN THE DRAWINGS:

[0023] 10. Lower die 11. Lower die base

[0024] 12. Lower template 121. Lower cavity

[0025] 122. First chute 123. Second chute

[0026] 124. Third chute 125. Slide rail

[0027] 13. Lower mold core 131. Lower cooling channel

[0028] 14. Ejection mechanism 141. Bottom plate

[0029] 142. Panel 143. Ejector pin

[0030] 15. First slider assembly 151. First slider seat

[0031] 152. First slider 16. Second slider assembly

[0032] 161. Second slider seat 162. Second slider

[0033] 17. Third slider assembly 171. Third slider seat

[0034] 172. Third slider 18. Manifold cone

[0035] 101. First angled guide pin hole 102. Second angled guide pin hole

[0036] 103. Third angled guide pin hole 20. Upper mold

[0037] 21. Upper template 211. First wear-resistant block

[0038] 212. Second wear-resistant block 213. Third wear-resistant block

[0039] 22. Upper mold core 221. Upper cooling channel

[0040] 23. Casting port 24. First angled guide pin

[0041] 25. Second angled guide pin 26. Third angled guide pin

[0042] 201. Cavity 30. Infrared thermal imager housing

[0043] 31. Concave structure 40. Guide pillar. Detailed implementation manner

[0044] Please refer to Figures 1 to 5 as shown, which shows the specific structure of the preferred embodiment of the present utility model, including a lower mold 10 and an upper mold 20.

[0045] The lower die 10 includes a lower die base 11, a lower template 12, a lower die core 13 and an ejection mechanism 14. The lower template 12 is arranged on the lower die base 11, the lower die core 13 is arranged on the lower template 12, and the ejection mechanism 14 is arranged on the lower die base 11. On the upper surface of the lower template 12, a first slider assembly 15 and a second slider assembly 16 are respectively arranged on the left and right sides. The first slider assembly 15 and the second slider assembly 16 are both arranged to be able to move back and forth laterally. The first slider assembly 15 and the second slider assembly 16 are respectively located beside the left and right sides of the lower die core 13. On the front side of the upper surface of the lower template 12, a third slider assembly 17 is arranged. The third slider assembly 17 is arranged to be able to move back and forth in the front and back lateral directions. The third slider assembly 17 is located beside the front side of the lower die core 13.

[0046] In this embodiment, a lower concave cavity 121 is provided at the center of the upper surface of the lower template 12. The lower die core 13 is embedded in the lower concave cavity 121 to facilitate the replacement of the lower die core 13. And on the left and right sides and the front side of the upper surface of the lower template 12, a first chute 122, a second chute 123 and a third chute 124 are respectively recessed. The first chute 122, the second chute 123 and the third chute 124 are all communicated with the lower concave cavity 121. Slide rails 125 are arranged on both sides of each chute. A plurality of lower cooling channels 131 are opened in the lower die core 13 for injecting coolant for cooling. The ejection mechanism 14 includes a bottom plate 141, a panel 142 and a plurality of ejector pins 143. The panel 142 is laminated on the surface of the bottom plate 141 and is arranged to be able to move up and down along with the bottom plate 141. The plurality of ejector pins 143 all extend vertically. The lower end of each ejector pin 143 is clamped and fixed between the bottom plate 141 and the panel 142.

[0047] The first slider assembly 15, the second slider assembly 16 and the third slider assembly 17 are respectively arranged to be able to slide back and forth in the first chute 122, the second chute 123 and the third chute 124. Specifically, the first slider assembly 15 includes a first slider seat 151 and a first slider 152. A first inclined guide post hole 101 is opened on the first slider seat 151. The first slider 152 is fixed to the front side of the first slider seat 151 by a bolt (not shown in the figure) and is close to the lower die core 13. The second slider assembly 16 includes a second slider seat 161 and a second slider 162. A second inclined guide post hole 102 is opened on the second slider seat 161. The second slider 162 is fixed to the front side of the second slider seat 161 by a bolt (not shown in the figure) and is close to the lower die core 13. The third slider assembly 17 includes a third slider seat 171 and a third slider 172. A third inclined guide post hole 103 is opened on the third slider seat 171. The third slider 172 is fixed to the front side of the third slider seat 171 and is close to the lower die core 13. And the first slider assembly 15, the second slider assembly 16 and the third slider assembly 17 are arranged in a T-shaped layout, with a simple and compact structure. In addition, a flow splitter cone 18 is arranged on the upper surface of the lower template 12.

[0048] During work, the upper mold 20 is set directly above the lower mold 10 in a vertically movable manner with precise positioning through the guide pillars 40. The upper mold 20 includes an upper template 21, an upper mold core 22, and a casting gate 23. The upper mold core 22 is arranged on the upper template 21 and is vertically aligned and cooperated with the lower mold core 13. The casting gate 23 is arranged on the upper template 22. The third slider assembly 17, the second slider assembly 16, the first slider assembly 15, the lower mold core 13, and the upper mold core 22 jointly form a cavity 201 adapted to the infrared thermal imager housing 30. The casting gate 23 is communicated with the cavity 201. The ejector pin 143 of the ejector mechanism 14 extends into the cavity 201 from bottom to top. And, first inclined guide pillars 24, second inclined guide pillars 25, and third inclined guide pillars 26 are arranged on the upper template 21. The first inclined guide pillar 24 causes the first slider assembly 15 to move back and forth laterally left and right. The second inclined guide pillar 25 causes the second slider assembly 16 to move back and forth laterally left and right. The third inclined guide pillar 26 causes the third slider assembly 17 to move back and forth laterally front and back.

[0049] In this embodiment, a plurality of upper cooling channels 221 are opened in the upper mold core 22 for injecting coolant for cooling. The aforementioned flow splitting cone 18 is located directly below the casting gate 23. The first inclined guide pillar 24 is inserted into the first inclined guide pillar hole 101. The second inclined guide pillar 25 is inserted into the second inclined guide pillar hole 102. The third inclined guide pillar 26 is inserted into the third inclined guide pillar hole 103. In addition, a first wear-resistant block 211, a second wear-resistant block 212, and a third wear-resistant block 213 are fixed to the bottom of the upper template 21. The first wear-resistant block 211 is in mating contact with the outer inclined surface of the first slide block 151. The second wear-resistant block 212 is in mating contact with the outer inclined surface of the second slide block 161. The third wear-resistant block 213 is in mating contact with the outer inclined surface of the third slide block 171.

[0050] The working principle of this embodiment is described in detail as follows:

[0051] First, close the upper mold 20 and the lower mold 10. After closing the mold, inject the liquid metal or semi-liquid metal into the cavity 201 from the casting port 23. Under high pressure, the liquid metal or semi-liquid metal fills the cavity 201 at a high speed and quickly solidifies under high pressure to obtain the infrared thermal imager housing 30. After the liquid metal or semi-liquid metal in the cavity 201 solidifies, move the upper mold 20 upward relative to the lower mold 10 to open the mold. During the mold opening process, the first angled guide pillar 24, the second angled guide pillar 25, and the third angled guide pillar 26 respectively cause the first slider assembly 15, the second slider assembly 16, and the third slider assembly 17 to move outward and separate from the infrared thermal imager housing 30. After the upper mold 20 moves upward in place, an external driving mechanism causes the ejector mechanism 14 to move upward, so that the infrared thermal imager housing 30 is ejected upward by a plurality of ejector pins 143 and separated from the lower mold core 13. At this time, the infrared thermal imager housing 30 can be taken out. In this way, the three sides of the die-cast infrared thermal imager housing 30 are all formed with concave structures 31.

[0052] The design focus of the present utility model lies in: by setting the first slider assembly, the second slider assembly, and the third slider assembly, and cooperating with the first angled guide pillar, the second angled guide pillar, and the third angled guide pillar to form three slide structures, so that the die-casting mold can simultaneously form concave structures on the three sides of the infrared thermal imager housing, eliminating the need for subsequent milling processing operations, effectively improving production efficiency, and at the same time greatly reducing the risk of surface sand hole defects and manufacturing costs after milling processing, which is beneficial to enhancing the market competitiveness of the product.

[0053] The above is only a preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A die-casting mold for forming the housing of an infrared thermal imager, comprising a lower mold and an upper mold; the lower mold includes a lower mold base, a lower template, a lower mold core, and an ejection mechanism, the lower template is disposed on the lower mold base, the lower mold core is disposed on the lower template, and the ejection mechanism is disposed on the lower mold base; the upper mold is set directly above the lower mold in a vertically movable manner through precise positioning by guide columns during operation, the upper mold includes an upper template, an upper mold core, and a casting port, the upper mold core is disposed on the upper template and is vertically aligned and cooperated with the lower mold core, and the casting port is disposed on the upper template; characterized in that: On the upper surface of the lower template, a first slider assembly and a second slider assembly are respectively arranged on the left and right sides. Both the first slider assembly and the second slider assembly are arranged to be able to move back and forth laterally left and right. The first slider assembly and the second slider assembly are respectively located beside the left and right sides of the lower die core. On the front side of the upper surface of the lower template, a third slider assembly is arranged. The third slider assembly is arranged to be able to move back and forth laterally front and back. The third slider assembly is located beside the front side of the lower die core. The third slider assembly, the second slider assembly, the first slider assembly, the lower die core and the upper die core jointly form a cavity adapted to the infrared thermal imager housing. The casting gate is communicated with the cavity. The ejector pin of the ejector mechanism extends into the cavity from bottom to top; On the upper template, a first inclined guide post, a second inclined guide post and a third inclined guide post are arranged. The first inclined guide post causes the first slider assembly to move back and forth laterally left and right. The second inclined guide post causes the second slider assembly to move back and forth laterally left and right. The third inclined guide post causes the third slider assembly to move back and forth laterally front and back.

2. The die-casting mold for forming the housing of an infrared thermal imager according to claim 1, wherein: A lower concave cavity is recessed in the center of the upper surface of the lower template. The lower die core is embedded in the lower concave cavity. And on the left and right sides and the front side of the upper surface of the lower template, a first chute, a second chute and a third chute are respectively recessed. The first chute, the second chute and the third chute are all communicated with the lower concave cavity. The first slider assembly, the second slider assembly and the third slider assembly are respectively arranged to be able to slide back and forth in the first chute, the second chute and the third chute.

3. The die-casting mold for forming the housing of an infrared thermal imager according to claim 1, characterized in that: The first slider assembly includes a first slide seat and a first slider. A first inclined guide post hole is opened on the first slide seat. The first inclined guide post is inserted in the first inclined guide post hole. The first slider is fixed to the front side of the first slide seat and close to the lower die core.

4. The die-casting mold for forming the housing of an infrared thermal imager according to claim 1, wherein: The second slider assembly includes a second slide seat and a second slider. A second inclined guide post hole is opened on the second slide seat. The second inclined guide post is inserted in the second inclined guide post hole. The second slider is fixed to the front side of the second slide seat and close to the lower die core.

5. The die-casting mold for forming the housing of an infrared thermal imager according to claim 1, characterized in that: The third slider assembly includes a third slide seat and a third slider. A third inclined guide post hole is opened on the third slide seat. The third inclined guide post is inserted in the third inclined guide post hole. The third slider is fixed to the front side of the third slide seat and close to the lower die core.

6. The die-casting mold for forming the housing of an infrared thermal imager according to claim 1, wherein: The first slider assembly, the second slider assembly and the third slider assembly are arranged in a T-shaped layout.

7. The die-casting mold for forming the housing of an infrared thermal imager according to claim 1, characterized in that: A flow splitter cone is arranged on the upper surface of the lower template. The flow splitter cone is located directly below the casting gate.

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