Plastic bracket mold

Abstract

The utility model relates to the technical field of injection molds, and discloses a plastic support mold which comprises an upper mold cavity and a lower mold cavity which are arranged up and down, the upper mold cavity and the lower mold cavity can be close to each other or far away from each other, and when the upper mold cavity and the lower mold cavity are close to each other, the mold is closed to perform injection molding on a plastic support. According to the plastic bracket mold, the plurality of temperature control boxes are arranged, and when the plastic bracket is cooled, the density among the temperature control boxes can be adaptively adjusted according to the size of each section of the plastic bracket, so that the distribution density of the temperature control boxes in the section with the large size of the plastic bracket is increased; the distribution density of the temperature control boxes in the small-size sections of the plastic support is small, so that when the cooling liquid cools the plastic support, the temperatures of all the sections of the plastic support are basically consistent, and the situation that the injection molding quality of the plastic support is reduced due to the fact that remarkable temperature differences occur in all the sections of the plastic support is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a plastic bracket mold. Background Art

[0002] Plastic brackets are a kind of support tool, which are mostly used to support electronic products such as mobile phones, tablet computers and laptops. During manufacturing, the plastic is heated to a molten state, and then the plastic is pressurized and injected into the mold cavity. After the plastic product cools down, the mold cavity is opened and the plastic product can be taken out of the mold cavity.

[0003] When cooling plastic products, liquid cooling is mostly used in the prior art, and cooling water pipes are passed through the injection molding area. However, since the sizes of various parts of the plastic bracket are not uniform, more injection plastic is required in large-sized areas, and less injection plastic is required in small-sized areas. Therefore, a single pipe is passed through the injection molding area, and the cooling capacity of the cooling water cannot be adjusted according to the different adaptability of the injection molding areas, which easily causes small-sized areas to cool too quickly and large-sized areas to cool too slowly, thereby resulting in poor overall molding of the plastic bracket. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic bracket mold to solve the problems raised in the background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a plastic bracket mold, comprising an upper mold cavity and a lower mold cavity arranged up and down, the upper mold cavity and the lower mold cavity can be close to or away from each other, an upper temperature control component is arranged on the top of the upper mold cavity, and a lower temperature control component is arranged on the bottom of the lower mold cavity;

[0006] The upper temperature control assembly includes an insulation frame, multiple temperature control boxes and a bellows. The multiple temperature control boxes are arranged horizontally at intervals. The temperature control boxes are hollow inside. The bellows connect two adjacent temperature control boxes. The temperature control boxes can move along a first direction to adjust the distance between two adjacent temperature control boxes.

[0007] Furthermore, sealing plates are slidably connected to the inner ends of two adjacent temperature control boxes, telescopic cylinders are fixedly connected to the two ends of the temperature control boxes, and the telescopic ends of the telescopic cylinders are fixedly connected to the sealing plates.

[0008] Furthermore, a connecting frame is fixedly provided on the outside of the telescopic cylinder body, and a power wheel is provided at one end of the connecting frame away from the telescopic cylinder body. The power wheel can rotate around its axis, and guide side plates are provided on both sides of the insulation frame, and the guide side plates are in rolling contact with the power wheel.

[0009] Furthermore, slide grooves are provided on both sides of the heat preservation frame, and a T-shaped sliding block is fixedly connected to one end of the telescopic cylinder away from the temperature control box, and the T-shaped sliding block is slidably connected in the slide groove.

[0010] Furthermore, an upper cover plate is arranged on the top of the upper temperature control component, and a lower cover plate is arranged on the bottom of the lower temperature control component.

[0011] Furthermore, upper circulation pipe openings are provided at the left and right ends of the upper temperature control component, and the upper circulation pipe openings are connected to the interior of the temperature control box closest to them.

[0012] Furthermore, the internal structure of the lower temperature control component is the same as that of the upper temperature control component, and lower circulation pipe openings are provided on the left and right sides of the lower temperature control component, and the lower circulation pipe openings are connected to the interior of the temperature control box closest to them.

[0013] Compared with the prior art, the utility model provides a plastic bracket mold, which has the following beneficial effects:

[0014] The plastic bracket mold is provided with a plurality of temperature control boxes. When cooling the plastic bracket, the density between the temperature control boxes can be adaptively adjusted according to the size of each section of the plastic bracket, so that the distribution density of the temperature control boxes in the section with a large size of the plastic bracket is larger, and the distribution density of the temperature control boxes in the section with a small size of the plastic bracket is smaller. Therefore, when the coolant cools the plastic bracket, the temperature of each section of the plastic bracket is basically the same, thereby avoiding a significant temperature difference in each section of the plastic bracket and causing a decrease in the injection molding quality of the plastic bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the thermal insulation frame of the utility model;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure in the middle;

[0018] Figure 4 This is a schematic diagram of the distribution state of the temperature control box in the utility model;

[0019] Figure 5 It is a half-section stereoscopic view of the temperature control box in the utility model;

[0020] Figure 6 This is a structural diagram of the plastic bracket in the utility model.

[0021] In the figure: 100, upper mold cavity; 110, upper injection hole; 120, lower injection hole; 200, lower mold cavity; 300, upper temperature control assembly; 310, insulation frame; 320, guide side plate; 330, temperature control box; 340, bellows; 350, telescopic cylinder; 351, sealing plate; 361, connecting frame; 362, power wheel; 370, T-shaped sliding block; 380, slide groove; 390, upper circulation pipe mouth; 400, lower temperature control assembly; 410, lower circulation pipe mouth; 500, upper cover plate; 600, lower cover plate; 700, plastic bracket. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0023] See also Figure 1-Figure 6 A plastic bracket mold includes an upper mold cavity 100 and a lower mold cavity 200 arranged up and down. The upper mold cavity 100 and the lower mold cavity 200 can be close to or away from each other. When the upper mold cavity 100 and the lower mold cavity 200 are close to each other, they are used to close the mold to perform injection molding on the plastic bracket 700. When the upper mold cavity 100 and the lower mold cavity 200 are away from each other, they are used to open the mold to take out the plastic bracket 700 from the mold cavity. An upper temperature control component 300 is arranged on the top of the upper mold cavity 100, and a lower temperature control component 400 is arranged on the bottom of the lower mold cavity 200. The upper temperature control component 300 includes a heat preservation frame 310, a plurality of temperature control boxes 330 and a bellows 340. The plurality of temperature control boxes 330 are arranged horizontally at intervals. The temperature control box 330 is hollow inside. The bellows 340 connects two adjacent temperature control boxes 330. The temperature control box 330 can move along a first direction to adjust the spacing between two adjacent temperature control boxes 330.

[0024] It should be supplemented that a connecting frame 361 is fixedly provided on the outside of the telescopic cylinder body 350, and a power wheel 362 is provided at one end of the connecting frame 361 away from the telescopic cylinder body 350. The power wheel 362 can rotate around its axis, and guide side plates 320 are provided on both sides of the insulation frame 310, and the guide side plates 320 are in rolling contact with the power wheel 362.

[0025] It should also be added that upper circulation pipe openings 390 are also provided on the left and right ends of the upper temperature control component 300, and the upper circulation pipe openings 390 are connected to the interior of the temperature control box 330 closest thereto. The internal structure of the lower temperature control component 400 is the same as the internal structure of the upper temperature control component 300, and lower circulation pipe openings 410 are provided on the left and right sides of the lower temperature control component 400, and the lower circulation pipe openings 410 are connected to the interior of the temperature control box 330 closest thereto.

[0026] The specific usage and function of this embodiment are as follows:

[0027] Before cooling, the staff first adjusts the distribution of the temperature control boxes 330 according to the size and shape of the plastic bracket 700, so that the distribution density of the temperature control boxes 330 is higher where the cross-sectional size of the plastic bracket 700 is larger, and the distribution density of the temperature control boxes 330 is lower where the cross-sectional size of the plastic bracket 700 is smaller, such as Figure 4 and Figure 6 As shown, after such arrangement, during cooling, the cooling effect of the coolant at the place where the cross-sectional size of the plastic bracket 700 is large can be greater than the cooling effect at the place where the cross-sectional size of the plastic bracket 700 is small. Therefore, during cooling, it is possible to ensure that the temperature of the place where the cross-sectional size of the plastic bracket 700 is large and the temperature of the place where the cross-sectional size is small are basically the same, and the overall molding quality of the plastic bracket 700 will not be poor due to the significant temperature difference between the various parts of the plastic bracket 700.

[0028] It should be supplemented that, when cooling is performed, one of the upper circulation pipe openings 390 is connected to the liquid inlet end of the cooling circulation system, and the other upper circulation pipe opening 390 is connected to the liquid outlet end of the cooling circulation system. After the circulation system is started, the coolant in the circulation system enters the upper circulation pipe opening 390 from its liquid inlet end, and enters the temperature control box 330 corresponding to the upper circulation pipe opening 390 from the upper circulation pipe opening 390, and then the coolant passes through the bellows 340 and enters another temperature control box 330 adjacent to the temperature control box 330, so that the coolant flows through all the temperature control boxes 330 in turn, completing the cooling of various areas of the plastic bracket 700, and finally the coolant flowing out of the temperature control box 330 flows back into the circulation system through another upper circulation pipe opening 390.

[0029] Further, such as Figure 5 As shown, sealing plates 351 are slidably connected to the inner ends of two adjacent temperature control boxes 330 , and telescopic cylinders 350 are fixedly connected to the two ends of the temperature control boxes 330 , and the telescopic ends of the telescopic cylinders 350 are fixedly connected to the sealing plates 351 .

[0030] When the width of the plastic bracket 700 is narrow, the coolant has no cooling effect on the portion exceeding the width of the plastic bracket 700, so the two sealing plates 351 can be brought close to each other. At this time, the volume of the temperature control box 330 is reduced, and the coolant in the upper temperature control component 300 circulates only in the area where the width of the plastic bracket 700 is located, thereby improving the use effect of the coolant.

[0031] Further, such as Figure 3 As shown, slide grooves 380 are also opened on both sides of the insulation frame 310, and the end of the telescopic cylinder 350 away from the temperature control box 330 is fixedly connected to a T-shaped sliding block 370, and the T-shaped sliding block 370 is slidably connected in the slide groove 380; the slide groove 380 and the T-shaped sliding block 370 are provided to guide and support the movement of the temperature control box 330.

[0032] Further, such as Figure 1 As shown, an upper cover plate 500 is provided on the top of the upper temperature control component 300, and a lower cover plate 600 is provided on the bottom of the lower temperature control component 400. The upper cover plate 500 and the lower cover plate 600 are provided to insulate and seal the top of the upper temperature control component 300 and the bottom of the lower temperature control component 400 to prevent heat exchange between the coolant in the temperature control box 330 and the outside.

[0033] Further, such as Figure 1 As shown, an upper injection hole 110 is provided at one end of the upper mold cavity 100 for injecting the injection molding material into the mold cavity, and a lower injection hole 120 is provided at one end of the lower mold cavity 200 for injecting the injection molding material into the mold cavity.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic bracket mold, comprising an upper mold cavity (100) and a lower mold cavity (200) arranged one above the other, wherein the upper mold cavity (100) and the lower mold cavity (200) can be moved closer or farther away, and characterized in that: An upper temperature control component (300) is disposed at the top of the upper mold cavity (100), and a lower temperature control component (400) is disposed at the bottom of the lower mold cavity (200); The upper temperature control assembly (300) comprises a heat preservation frame (310), a plurality of temperature control boxes (330) and a bellows (340); the plurality of temperature control boxes (330) are arranged horizontally and spaced apart; the temperature control boxes (330) are hollow inside; the bellows (340) is connected to two adjacent temperature control boxes (330); and the temperature control boxes (330) are movable along a first direction to adjust the spacing between two adjacent temperature control boxes (330).

2. A plastic bracket mold according to claim 1, characterized in that: The two inner ends of the two adjacent temperature control boxes (330) are also slidably connected to sealing plates (351), the two ends of the temperature control boxes (330) are fixedly connected to telescopic cylinders (350), and the telescopic ends of the telescopic cylinders (350) are fixedly connected to the sealing plates (351).

3. A plastic bracket mold according to claim 2, characterized in that: A connecting frame (361) is fixedly provided on the outside of the telescopic cylinder body (350), and a power wheel (362) is provided at one end of the connecting frame (361) away from the telescopic cylinder body (350). The power wheel (362) can rotate around its axis. Guide side plates (320) are provided on both sides of the heat preservation frame (310), and the guide side plates (320) are in rolling contact with the power wheel (362).

4. A plastic bracket mold according to claim 3, characterized in that: Slide grooves (380) are also provided on both sides of the heat preservation frame (310), and one end of the telescopic cylinder (350) away from the temperature control box (330) is fixedly connected to a T-shaped sliding block (370), and the T-shaped sliding block (370) is slidably connected in the slide groove (380).

5. The plastic bracket mold according to claim 1, characterized in that: An upper cover plate (500) is arranged on the top of the upper temperature control component (300), and a lower cover plate (600) is arranged on the bottom of the lower temperature control component (400).

6. The plastic bracket mold according to claim 1, characterized in that: Upper circulation pipe openings (390) are also provided at the left and right ends of the upper temperature control component (300), and the upper circulation pipe openings (390) are connected to the interior of the temperature control box (330) closest thereto.

7. A plastic bracket mold according to claim 6, characterized in that: The internal structure of the lower temperature control component (400) is the same as the internal structure of the upper temperature control component (300), and lower circulation pipe openings (410) are provided on the left and right sides of the lower temperature control component (400), and the lower circulation pipe openings (410) are connected to the interior of the temperature control box (330) closest thereto.

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