Forming mold convenient for core pulling

Abstract

The utility model relates to the technical field of dies, and provides a forming die convenient for core pulling, which is used for forming a skylight sunshade plastic hook and comprises an upper die assembly and a lower die assembly, and the upper die assembly and the lower die assembly are assembled to form a cavity for forming the plastic hook; the upper die assembly comprises an upper die plate, an upper die core arranged on the upper die plate and a plurality of stand columns arranged in the upper die core. The lower die assembly comprises a lower die plate, a supporting plate arranged on the lower die plate, a lower die core arranged on the supporting plate and two sliding blocks arranged on the lower die core and connected with the lower die core in a sliding mode. One end of the stand column is arranged in the upper mold core, the other end of the stand column is embedded in the sliding block, and the upper mold core, the stand column, the lower mold core and the sliding block form a cavity used for forming the plastic hook.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic hook production, and in particular to a molding die that facilitates core pulling. Background Technology

[0002] Plastic hooks are used in conjunction with skylight shades (curtains, etc.). To use them, the plastic hooks need to be installed in the designated position, then a horizontal bar is placed across the hooks, and finally the shade is hung on the bar. The plastic hooks require several bolts for installation, so in most cases, stepped holes are needed on the hooks for the bolts to pass through. After tightening, the bolt head is positioned within the stepped hole. However, currently, it is difficult to directly form the stepped holes in plastic hook production; secondary processing is required to create them. This method increases the production cost or reduces the production efficiency of the plastic hooks. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model proposes a molding die that facilitates core pulling, the specific solution of which is as follows:

[0004] A molding die for easy core pulling is used to mold plastic hooks for sunshades. The molding die includes an upper mold assembly and a lower mold assembly, which are closed to form a cavity for molding the plastic hooks.

[0005] The upper mold assembly includes an upper template, an upper mold core disposed on the upper template, and a plurality of columns disposed within the upper mold core;

[0006] The lower mold assembly includes a lower template, a support plate disposed on the lower template, a lower mold core disposed on the support plate, and a slider disposed on the lower mold core and slidably connected to the lower mold core, wherein two sliders are provided;

[0007] One end of the column is located inside the upper mold core, and the other end is embedded in the slider. The upper mold core, column, lower mold core, and slider form a cavity for molding plastic hooks.

[0008] Furthermore, during mold opening, the lower mold assembly is moved first, causing the upper mold assembly to separate from the lower mold assembly, and the column to disengage from the slider. Then, the slider is moved outward to remove the molded product. During mold closing, the slider needs to be reset first, and then the upper mold assembly and the lower mold assembly are closed to allow the column to be inserted into the slider.

[0009] Furthermore, the upper mold plate is also provided with an injection port and a guide post, and the lower mold core is also provided with a guide sleeve for sliding connection with the guide post. The guide post passes through the upper mold core and is slidably connected with the guide sleeve on the lower mold core.

[0010] Furthermore, four guide pillars are provided, and four corresponding guide sleeves are provided. Through the cooperation of the guide pillars and guide sleeves, the upper mold assembly and the lower mold assembly can be accurately closed.

[0011] Furthermore, an ejection mechanism is provided on the lower template and located between the two support plates to eject the molded plastic hook.

[0012] Furthermore, the column includes a limiting part disposed within the upper mold core, a connecting part located within the upper mold core, a truncated cone part disposed on the connecting part, and a step part disposed on the truncated cone part.

[0013] Furthermore, the slider is driven by a driving mechanism to slide and connect with the lower mold core.

[0014] The two sliders are driven by two sets of drive mechanisms to bring them closer together or further apart.

[0015] Furthermore, the driving mechanism includes a driving base and a driving cylinder disposed on the driving base and having its output end passing through the driving base and connected to the slider, the driving cylinder driving the slider to move.

[0016] Furthermore, the slider is provided with a connecting hole, and a connecting channel is also provided connecting the slider sidewall and the connecting hole. The output end of the drive cylinder is provided with a connecting rod for connecting with the slider, and the connecting rod is provided with slots on both sides that can be embedded in the connecting channel.

[0017] Furthermore, a guide device is also provided on the lower mold core to allow the slider to move along a straight line.

[0018] Furthermore, guide steps extend outward from both sides of the slider. The guide device includes a guide seat fixedly mounted on the lower mold core and two guide blocks mounted on the guide seat. The guide blocks form a guide groove between the guide seats, and the guide steps are located within the guide groove.

[0019] Furthermore, the upper mold core is provided with a clearance cavity for avoiding the slider.

[0020] As can be seen from the above description of this utility model, this utility model has the following beneficial effects:

[0021] The molding die of this utility model is equipped with a column and a slider. When the upper mold assembly and the lower mold assembly are closed, the column is embedded in the slider. With the cooperation of the upper mold core and the lower mold core, a plastic hook with stepped holes can be directly formed without the need for subsequent stepped hole processing, which can greatly improve processing efficiency and reduce processing costs. Attached Figure Description

[0022] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0023] in:

[0024] Figure 1 This is an axonometric view of a molding die that facilitates core pulling;

[0025] Figure 2 This is a side view of a molding die that facilitates core pulling;

[0026] Figure 3 This is a top view of a molding die that facilitates core pulling;

[0027] Figure 4 It is a molding die that facilitates core pulling. Figure 3 Sectional view AA;

[0028] Figure 5 It is a molding die that facilitates core pulling. Figure 3 BB (sectional view);

[0029] Figure 6 This is an isometric view of the upper mold assembly in a molding die that facilitates core pulling;

[0030] Figure 7 This is an isometric view of the lower mold assembly in a molding die that facilitates core pulling;

[0031] Figure 8 This is an exploded view of a molding die that facilitates core pulling.

[0032] Figure 9 yes Figure 8 A partial schematic diagram;

[0033] Figure 10 This is a schematic diagram of the structure of a column in a molding die that facilitates core pulling;

[0034] Figure 11 This is an axonometric view of the plastic hook;

[0035] Figures 1 to 11 The identifiers in the text are:

[0036] 001. Upper mold assembly; 002. Lower mold assembly; 003. Plastic hook; 031. Stepped hole; 10. Upper mold plate; 11. Injection port; 12. Guide pillar; 20. Upper mold core; 21. Clearance cavity; 30. Column; 31. Limiting part; 32. Connecting part; 33. Conical part; 34. Step part; 40. Lower mold plate; 50. Support plate; 60. Lower mold core; 61. Guide sleeve; 70. Slider; 701. Connecting hole; 702. Connecting channel; 703. Guide step; 71. Drive mechanism; 711. Drive seat; 712. Drive cylinder; 713. Connecting rod; 7131. Slot; 72. Guide device; 721. Guide seat; 722. Guide block; 723. Guide groove; 80. Ejection mechanism. Detailed Implementation

[0037] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0038] Please see Figures 1 to 11 This embodiment provides a molding die for easy core pulling, used to mold the plastic hook 003 for a sunroof curtain. Specifically, it provides a molding die for a plastic hook, comprising an upper mold assembly 001 and a lower mold assembly 002. The upper mold assembly 001 and lower mold assembly 002 are closed to form a cavity for molding the plastic hook 003. The upper mold assembly 001 includes an upper template 10, an upper mold core 20 disposed on the upper template 10, and several columns 30 disposed within the upper mold core 20. The lower mold assembly 002 includes a lower template 40, a support plate 50 disposed on the lower template 40, a lower mold core 60 disposed on the support plate 50, and a [missing information - likely a component or element]. The slider 70 is slidably connected to the lower mold core 60, and two sliders 70 are provided; one end of the column 30 is set in the upper mold core 20 and the other end is embedded in the slider 70. The upper mold core 20, column 30, lower mold core 60 and slider 70 form a cavity for molding the plastic hook 003. When the mold is opened, the lower mold assembly 002 is moved first, so that the upper mold assembly 001 and the lower mold assembly 002 are separated, and the column 30 is disengaged from the slider 70. Then the slider 70 is moved outward, and the molded product can be taken out. When the mold is closed, the slider 70 needs to be reset first, and then the upper mold assembly and the lower mold assembly 002 are closed so that the column 30 can be inserted into the slider 70.

[0039] In this utility model, the plastic hook 003 needs to be provided with stepped holes 031 for bolts to pass through, so as to fix the plastic hook 003. Therefore, the number of stepped holes 031 of the plastic hook 003 determines the number of uprights 30. In this utility model, one plastic hook 003 corresponds to four stepped holes 031, so four uprights 30 are required. This utility model adopts a one-out-two method, that is, eight uprights 30 are required. Therefore, after the mold is closed, two cavities can be formed for molding the plastic hook 003.

[0040] The upper mold plate 10 is also provided with an injection port 11 and guide pillars 12. The lower mold core 60 is also provided with a guide sleeve 61 for sliding connection with the guide pillars 12. The guide pillars 12 pass through the upper mold core 20 and slide to connect with the guide sleeves 61 on the lower mold core 60. There are four guide pillars 12 and four corresponding guide sleeves 61. Through the cooperation of the guide pillars 12 and the guide sleeves 61, the upper mold assembly 001 and the lower mold assembly 002 can be accurately molded together.

[0041] An ejection mechanism 80 is also provided on the lower template 40 and between the two support plates 50 to eject the molded plastic hook 003. The ejection mechanism 80 adopts existing technology and will not be described in detail.

[0042] The column 30 includes a limiting part 31 disposed within the upper mold core 20, a connecting part 32 disposed within the upper mold core 20, a frustum-shaped part 33 disposed on the connecting part 32, and a step part 34 disposed on the frustum-shaped part 33. Since the plastic hook 003 has a stepped hole 031, the stepped part 34 and the frustum-shaped part 33 can form the stepped hole 031. After mold closing, most of the frustum-shaped part 33 is located within the slider 70. Therefore, the frustum-shaped part 33 is more easily inserted into the slider 70. Holes for mating with the frustum-shaped part 33 are provided within the slider 70. During installation, the step part 34 and the frustum-shaped part 33 pass through the upper mold core 20, the connecting part 32 and the limiting part 31 are embedded within the upper mold core 20, and then the upper mold core 20 is fixed to the upper template 10, thus fixing and limiting the column 30.

[0043] The slider 70 is slidably connected to the lower mold core 60 by a drive mechanism 71. The two sliders 70 are driven by two sets of drive mechanisms 71 to move them closer or further apart. Each drive mechanism 71 includes a drive base 711 and a drive cylinder 712 mounted on the drive base 711 and connected to the slider 70 via its output end. The drive cylinder 712 drives the slider 70 to move; the drive cylinder 712 can be a hydraulic cylinder. Specifically, the slider 70 has a connecting hole 701 and a connecting channel 702 connecting the side wall of the slider 70 to the connecting hole 701. The output end of the drive cylinder 712 has a connecting rod 713 for connecting to the slider 70, and slots 7131 on both sides of the connecting rod 713 for embedding into the connecting channel 702. The connecting rod 713 is fixedly installed at the output end of the drive cylinder 712. After installation, the head of the connecting rod 713 is located in the connecting hole 701, and the slot 7131 is located in the connecting channel 702. This method facilitates the connection between the drive structure and the slider 70, improving assembly efficiency.

[0044] A guide device 72 is also provided on the lower mold core 60 to allow the slider 70 to move in a straight line, so that the movement of the two sliders 70 is more stable and smooth, and more accurate after moving into place. Specifically, guide steps 703 are provided on both sides of the slider 70. The guide device 72 includes a guide seat 721 fixedly provided on the lower mold core 60 and two guide blocks 722 provided on the guide seat 721. The guide blocks 722 form a guide groove 723 between the guide seats 721, and the guide steps 703 are located in the guide groove 723.

[0045] The upper mold core 20 is provided with a relief cavity 21 for avoiding the slider 70, and the cavity formed after mold closing is consistent with the shape of the plastic hook 003. Meanwhile, the water flow channel and other features in this utility model adopt existing technologies and will not be described in detail.

[0046] In summary, the molding die of this utility model, by setting up a column and a slider, allows the column to be embedded in the slider when the upper mold assembly and the lower mold assembly are closed. Together with the upper mold core and the lower mold core, it can directly form a plastic hook with stepped holes without the need for subsequent stepped hole processing, which can greatly improve processing efficiency and reduce processing costs.

[0047] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

[0048] It should be noted that, in this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A molding die for easy core pulling, used for molding plastic hooks (003) for skylight sunshade curtains, characterized in that, The molding die includes an upper mold assembly (001) and a lower mold assembly (002), which together form a cavity for molding a plastic hook (003); The upper mold assembly (001) includes an upper template (10), an upper mold core (20) disposed on the upper template (10), and a plurality of columns (30) disposed in the upper mold core (20). The lower mold assembly (002) includes a lower template (40), a support plate (50) disposed on the lower template (40), a lower mold core (60) disposed on the support plate (50), and a slider (70) disposed on the lower mold core (60) and slidably connected to the lower mold core (60), wherein two sliders (70) are provided; One end of the column (30) is set inside the upper mold core (20) and the other end is embedded in the slider (70). The upper mold core (20), column (30), lower mold core (60) and slider (70) form a cavity for molding the plastic hook (003).

2. The molding die for easy core pulling according to claim 1, characterized in that, The upper mold plate (10) is also provided with an injection port (11) and a guide post (12). The lower mold core (60) is also provided with a guide sleeve (61) for sliding connection with the guide post (12). The guide post (12) passes through the upper mold core (20) and is slidably connected with the guide sleeve (61) on the lower mold core (60).

3. The molding die for easy core pulling according to claim 1, characterized in that, An ejection mechanism (80) is also provided on the lower template (40) and between the two support plates (50) for ejecting the molded plastic hook (003).

4. The molding die for easy core pulling according to claim 1, characterized in that, The column (30) includes a limiting part (31) disposed in the upper mold core (20), a connecting part (32) located in the upper mold core (20), a truncated cone part (33) disposed on the connecting part (32), and a step part (34) disposed on the truncated cone part (33).

5. A molding die for easy core pulling according to claim 1, characterized in that, The slider (70) is driven by the drive mechanism (71) to slide and connect with the lower mold core (60).

6. A mold for facilitating core pulling according to claim 5 wherein, The drive mechanism (71) includes a drive seat (711) and a drive cylinder (712) disposed on the drive seat (711) and whose output end passes through the drive seat (711) and is connected to the slider (70). The drive cylinder (712) drives the slider (70) to move.

7. A mold for facilitating core pulling according to claim 6 wherein, The slider (70) is provided with a connecting hole (701) and a connecting channel (702) connecting the side wall of the slider (70) and the connecting hole (701). The output end of the drive cylinder (712) is provided with a connecting rod (713) for connecting with the slider (70). The connecting rod (713) has slots (7131) on both sides that can be embedded in the connecting channel (702).

8. A mold for facilitating core pulling according to claim 6 wherein, The lower mold core (60) is also provided with a guide device (72) to make the slider (70) move along a straight line.

9. A molding die for easy core pulling according to claim 8, characterized in that, The slider (70) extends outward on both sides with guide steps (703). The guide device (72) includes a guide seat (721) fixedly mounted on the lower mold core (60) and two guide blocks (722) mounted on the guide seat (721). The guide blocks (722) form a guide groove (723) between the guide seats (721). The guide steps (703) are located in the guide groove (723).

10. A molding die for easy core pulling according to claim 9, characterized in that, The upper mold core (20) is provided with a relief cavity (21) for avoiding the slider (70).

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