A ball bearing cage molding die with high efficiency cooling

Abstract

This utility model provides a ball bearing cage forming mold with high-efficiency cooling, relating to the field of molds, including a lower mold plate, an upper mold plate, and a support rod; the upper side of the lower mold plate is welded with guide pillars, and the upper side of the lower mold plate is provided with a rectangular through groove, in which a pressure plate frame is inserted; the upper side of the upper mold plate is densely covered with heat dissipation fins; the outer side of the support rod is slidably connected to the pressure plate frame, and the end of the support rod is welded with a base, the lower side of the base being rotatably connected to a turntable; through the arrangement of the turntable, cooling pipe, pressure plate frame, upper mold plate, and lower mold plate, not only is the splicing, assembly, and fixing operation of the upper and lower mold plate greatly improved, but the cooling efficiency of the liquid plastic in the cavities of the upper and lower mold plates is also improved, solving the problems of cumbersome and complicated operation of fixing the upper and lower mold plates with bolts and low efficiency of heat dissipation and solidification forming of the cage in traditional cage forming molds.

Description

Technical Field

[0001] This utility model belongs to the field of molds, and more specifically, it relates to a ball bearing cage forming mold with high-efficiency cooling. Background Technology

[0002] A cage molding die is used to manufacture ball bearing cages made of engineering plastics. It involves filling the cage cavity formed by the closed structure of the upper and lower molds with liquid plastic through injection holes. The mold is then cooled by natural air cooling, allowing the cage within the combined cavity of the upper and lower molds to solidify. Currently, to ensure stable solidification, traditional cage molding dies typically use multiple sets of bolts to fix the closed structure of the upper and lower molds. This results in complex assembly and disassembly of the closed assembly structure, and the natural air cooling method relies on heat conduction through the upper and lower molds, leading to slow solidification of a single cage assembly and significantly reducing the production efficiency of engineering plastic cages. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a ball bearing cage forming mold with high-efficiency cooling, which solves the problems of cumbersome and complicated operation of fixing the upper and lower molds with bolts and low efficiency of heat dissipation solidification forming of the cage in traditional cage forming molds.

[0004] This utility model provides a ball bearing cage forming mold with high-efficiency cooling, including a clamping knob; a threaded rotating rod is welded to the right end of the clamping knob, a base is rotatably connected to the outer side of the threaded rotating rod, a guide rod is welded to the inner side of the base, and a sliding plate is slidably connected to the outer side of the guide rod; it also includes a lower template, an upper template, and a support rod; a guide post is welded to the upper side of the lower template, a rectangular through groove is provided on the upper side of the lower template, and a pressure plate frame is inserted in the rectangular through groove of the lower template; two sets of through holes are provided on the upper side of the upper template, and a liquid injection pipe and a vent pipe are welded to the two sets of through holes of the upper template, respectively; a pressure plate frame is slidably connected to the outer side of the support rod, a base is welded to the end of the support rod, and a turntable is rotatably connected to the lower side of the base.

[0005] In at least some embodiments, the upper side of the upper template is provided with four sets of rectangular through slots, which are arranged in a ring array around the vertical central axis of the upper template. The four corners of the upper template are provided with circular through holes that run vertically through the top and bottom. Four sets of guide posts are respectively inserted into the circular through holes of the upper template. Heat dissipation fins are densely distributed at the center of the upper side of the upper template.

[0006] In at least some embodiments, the number of pressure plate frames is four sets, and the pressure plate frames are arranged in a circular array around the vertical central axis of the upper template. Each set of pressure plate frames is an inverted L-shaped structure. The bent part of the L-shaped structure of the pressure plate frame is a sloping structure. A horizontal through hole is provided near the bottom of the L-shaped structure of each set of pressure plate frames. A support rod is inserted into the horizontal through hole of the pressure plate frame. A long through groove is provided at the bottom of each set of pressure plate frames.

[0007] In at least some embodiments, an upper push rod is welded to the upper side of the turntable near the outer edge. There are four sets of upper push rods, which are arranged in a circular array around the vertical central axis of the turntable. The upper push rods are embedded in the long through groove of the pressure plate frame. A lower push post is welded to the lower side of the turntable near the outer edge.

[0008] In at least some embodiments, the left side of the slide plate is provided with a threaded through hole near the front end, and the left side of the slide plate is provided with a through hole near the rear end. The guide rod is inserted into the through hole of the slide plate, and the outer side of the threaded rotating rod is threadedly engaged with the threaded through hole of the slide plate.

[0009] In at least some embodiments, the upper side of the base is provided with a U-shaped zigzag path groove structure at the center position, the lower half of the cooling pipe is placed in the U-shaped zigzag path groove of the base, the upper side of the base is connected to a lower template by bolts, the lower side of the lower template is provided with a U-shaped zigzag path groove structure at the center position, and the U-shaped zigzag path groove of the lower template is vertically opposite to the U-shaped zigzag path groove of the base.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. In this utility model, a threaded meshing transmission mechanism is formed by a threaded rotating rod in the threaded through hole of the slide plate. The threaded rotating rod drives the long through groove of the slide plate to push the lower push column welded to the lower side of the turntable. The lower push column pushes the four sets of upper push rods on the upper side of the turntable to rotate. The four sets of upper push rods push the four sets of pressure plate frames to move centripetally. The inclined structure of the pressure plate frame presses the upper edge of the rectangular through groove of the upper template downward. This realizes the rapid clamping and fixing of the upper and lower templates by the four sets of pressure plate frames, replacing the traditional method of fixing the upper and lower molds with multiple sets of bolts. The clamping operation is simple and quick, greatly improving the efficiency of splicing and assembling the upper and lower molds.

[0012] 2. In this utility model, on the one hand, the cooling pipes form a nested structure inside the U-shaped tortuous path groove of the base and the U-shaped tortuous path groove of the lower template, allowing the cooling pipes to penetrate deep into the bottom side of the lower template and close to the cage forming position on the upper side of the lower template for water cooling and heat dissipation. On the other hand, the heat dissipation fins densely distributed in the center of the upper side of the upper template are used to accelerate the heat loss of the upper template by means of air convection, thereby improving the cooling efficiency of the liquid plastic in the cavity of the upper and lower templates and accelerating the cage forming production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a top view of the structure of this utility model.

[0015] Figure 3 This is a front view structural diagram of this utility model.

[0016] Figure 4 This is a schematic diagram of the left-side structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the structure of this utility model from a bottom view.

[0018] Figure 6 This is a bottom view of the structure of this utility model.

[0019] Figure 7 This is a cross-sectional structural diagram of the present invention.

[0020] Figure 8 This is the utility model Figure 7 Enlarged structural diagram of part A in the middle.

[0021] Figure 9 This is a top-view exploded structural diagram of this utility model.

[0022] Figure 10 This is a side view of the exploded structure of this utility model.

[0023] Reference numerals in the attached diagram: 1. Base; 2. Clamping knob; 3. Cooling pipe; 4. Lower template; 5. Guide post; 6. Pressure plate frame; 7. Heat dissipation fins; 8. Liquid injection pipe; 9. Vent pipe; 10. Upper template; 11. Slide plate; 12. Guide rod; 13. Lower push post; 14. Turntable; 15. Upper push rod; 16. Threaded rotating rod; 17. Support rod. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] like Figures 1-10 As shown, this utility model provides a ball bearing cage forming mold with high-efficiency cooling, including a clamping knob 2; a threaded rotating rod 16 is welded to the right end of the clamping knob 2, a base 1 is rotatably connected to the outer side of the threaded rotating rod 16, a guide rod 12 is welded to the inner side of the base 1, and a sliding plate 11 is slidably connected to the outer side of the guide rod 12; it also includes a lower template 4, an upper template 10, and a support rod 17; a guide post 5 is welded to the upper side of the lower template 4, a rectangular through groove is provided on the upper side of the lower template 4, and a pressure plate frame 6 is inserted in the rectangular through groove of the lower template 4; two sets of through holes are provided on the upper side of the upper template 10, and a liquid injection pipe 8 and a gas outlet pipe 9 are welded to the two sets of through holes of the upper template 10 respectively; the pressure plate frame 6 is slidably connected to the outer side of the support rod 17, a base 1 is welded to the end of the support rod 17, and a turntable 14 is rotatably connected to the lower side of the base 1.

[0026] In this embodiment, the upper side of the upper template 10 is provided with four sets of rectangular through slots, which are arranged in a ring array around the vertical central axis of the upper template 10. The four corners of the upper template 10 are provided with circular through holes that run vertically through the upper and lower parts. Four sets of guide posts 5 are respectively inserted into the circular through holes of the upper template 10. The four sets of guide posts 5 are positioned and supported by the circular through holes of the upper template 10 to move the upper template 10 vertically and directionally, so that the upper template 10 is accurately aligned with the upper side of the lower template 4, ensuring that the upper template 10 and the lower template 4 are horizontally fitted. The center of the upper side of the upper template 10 is densely covered with heat dissipation fins 7. Through the air convection between the heat dissipation fins 7, the heat dissipation rate at the center of the upper template 10 is accelerated, and the heat transfer and dissipation of the bearing cage in the upper template 10 is accelerated.

[0027] In this embodiment, there are four sets of pressure plate frames 6. The pressure plate frames 6 are arranged in a circular array around the vertical central axis of the upper template 10. Each set of pressure plate frames 6 is an inverted L-shaped structure. The bent part of the L-shaped structure of the pressure plate frame 6 is a sloping structure. When the sloping structure of the pressure plate frame 6 contacts the upper groove edge of the rectangular through groove of the upper template 10, the sloping structure of the four sets of pressure plate frames 6 presses the upper template 10 downward to ensure that the upper template 10 and the lower template 4 are tightly closed. The L-shaped structure of each set of pressure plate frames 6 has a horizontal through hole near the bottom. A support rod 17 is inserted in the horizontal through hole of the pressure plate frame 6. The pressure plate frame 6 fits against the groove wall of the rectangular through groove of the upper template 10. The support rod 17 cooperates with the rectangular through groove of the upper template 10 to support the horizontal centripetal movement of the four sets of pressure plate frames 6, ensuring that the sloping structure of the four sets of pressure plate frames 6 is horizontally and stably in contact with the upper groove edge of the rectangular through groove of the upper template 10. The bottom end of each set of pressure plate frames 6 has a long through groove that runs vertically through the groove.

[0028] In this embodiment, an upper push rod 15 is welded to the upper side of the turntable 14 near the outer edge. There are four sets of upper push rods 15, which are arranged in a circular array around the vertical central axis of the turntable 14. The upper push rods 15 are embedded in the long slot of the pressure plate frame 6. During the rotation of the turntable 14, the four sets of upper push rods 15 push the slot wall of the four sets of pressure plate frames 6 respectively, so that the turntable 14 synchronously drives the four sets of pressure plate frames 6 to move synchronously centripetally or centrifugally, completing the synchronous pressing and releasing of the upper template 10 by the four sets of pressure plate frames 6. A lower push column 13 is welded to the lower side of the turntable 14 near the outer edge.

[0029] In this embodiment, a threaded through hole is provided on the left side of the slide plate 11 near the front end, and a through hole is provided on the left side of the slide plate 11 near the rear end. The guide rod 12 is inserted into the through hole of the slide plate 11, and the outer side of the threaded rotating rod 16 is threadedly engaged with the threaded through hole of the slide plate 11. During the process of the clamping knob 2 driving the threaded rotating rod 16 to rotate, the threaded rotating rod 16 drives the slide plate 11 to move left and right along the guide rod 12, so that the long through groove wall of the slide plate 11 pushes the lower push column 13 to move. The lower push column 13 then drives the turntable 14 to complete the rotational motion. The centripetal or centrifugal motion of the four sets of pressure plate frames 6 is simple and quick to operate.

[0030] In this embodiment, the upper side of the base 1 is provided with a U-shaped zigzag path groove structure at the center. The lower half of the cooling pipe 3 is placed in the U-shaped zigzag path groove of the base 1. The upper side of the base 1 is connected to the lower template 4 by bolts. The lower side of the lower template 4 is provided with a U-shaped zigzag path groove structure at the center. The U-shaped zigzag path groove of the lower template 4 is vertically opposite to the U-shaped zigzag path groove of the base 1. When the lower side of the lower template 4 is closed with the upper side of the base 1, the upper half of the cooling pipe 3 is embedded and fits in the U-shaped zigzag path groove of the lower template 4. Cooling water is introduced into the cooling pipe 3 and flows along the cooling pipe 3 to cool the heat transferred and released by the retainer component in the lower template 4, thereby improving the cooling efficiency of the retainer forming part of the lower template 4.

[0031] The specific usage and function of this embodiment are as follows:

[0032] In the injection molding production of engineering plastic retainers using this utility model, the four sets of through holes of the upper template 10 are first aligned with the guide posts 5 at the four corners of the lower template 4. Then, the upper template 10 is placed downwards along the guide posts 5 on the upper side of the lower template 4. Next, the clamping knob 2 is manually rotated, causing the threaded rotating rod 16 to rotate. The threaded rotating rod 16 then causes the sliding plate 11, which is engaged with the outer side, to move to the left along the guide rod 12. Since the lower push post 13 welded to the lower side of the turntable 14 is inserted into the long through groove of the sliding plate 11, during the movement of the sliding plate 11, the groove wall of the long through groove of the sliding plate 11 pushes against the lower push post 13 welded to the turntable 14. The lower push post 13 drives the turntable 14 to rotate. At this time, the four sets of upper push rods 15 welded to the upper side of the turntable 14 rotate synchronously around the vertical central axis of the turntable 14. The four sets of pressure plate frames 6 are pushed against the long groove wall structure at the bottom of the four sets of support rods 17, so that the four sets of pressure plate frames 6 move synchronously towards the center until the inclined structure of the pressure plate frame 6 fits against the upper edge of the rectangular groove of the upper template 10. The four sets of pressure plate frames 6 squeeze the upper template 10 downward synchronously, so that the upper template 10 and the lower template 4 are pressed tightly and closed. Then, liquid plastic is injected into the cavity between the upper template 10 and the lower template 4 through the injection pipe 8. The gas in the cavity is discharged from the vent pipe hole 9. After the liquid plastic is injected, the cooling water from the external cooling water pipe is injected into the cooling pipe 3. The cooling water flows along the cooling pipe 3 in the U-shaped tortuous path groove of the lower template 4. The cooling water in the cooling pipe 3 provides close water cooling to the forming part of the lower template 4 retainer, which accelerates the cooling and solidification efficiency of the liquid plastic in the cavity of the lower template 4 retainer.

[0033] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient specifications of all components are based on their own technology; any method that achieves the desired effect can be implemented. The clamping knob 2 and cooling pipe 3 mentioned above are common commercially available components. When purchasing and using them, simply follow the instruction manual provided with the purchase; therefore, further details are omitted here.

[0034] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.

Claims

1. A ball bearing cage forming die with high-efficiency cooling, comprising a clamping knob (2); a threaded rotating rod (16) is welded to the right end of the clamping knob (2), a base (1) is rotatably connected to the outer side of the threaded rotating rod (16), a guide rod (12) is welded to the inner side of the base (1), and a sliding plate (11) is slidably connected to the outer side of the guide rod (12); characterized in that: It also includes a lower template (4), an upper template (10), and a support rod (17); the upper side of the lower template (4) is welded with a guide post (5), the upper side of the lower template (4) is provided with a rectangular through groove, and a pressure plate frame (6) is inserted in the rectangular through groove of the lower template (4); the upper side of the upper template (10) is provided with two sets of through holes, and an injection pipe (8) and an air outlet pipe (9) are welded in the two sets of through holes of the upper template (10); the outer side of the support rod (17) is slidably connected to the pressure plate frame (6), the end of the support rod (17) is welded with a base (1), and the lower side of the base (1) is rotatably connected to a turntable (14).

2. The ball bearing cage forming mold with high-efficiency cooling as described in claim 1, characterized in that: The upper side of the upper template (10) is provided with four sets of rectangular through slots. The rectangular through slots are arranged in a ring array around the vertical central axis of the upper template (10). The four corners of the upper template (10) are provided with circular through holes that run vertically through each other. The four sets of guide posts (5) are respectively inserted into the circular through holes of the upper template (10). The center of the upper side of the upper template (10) is densely covered with heat dissipation fins (7).

3. The ball bearing cage forming mold with high-efficiency cooling as described in claim 1, characterized in that: The number of pressure plate frames (6) is four sets. The pressure plate frames (6) are arranged in a ring array around the vertical central axis of the upper template (10). Each set of pressure plate frames (6) is an inverted L-shaped structure. The bent part of the L-shaped structure of the pressure plate frame (6) is a sloping structure. A horizontal through hole is provided near the bottom of the L-shaped structure of each set of pressure plate frames (6). A support rod (17) is inserted into the horizontal through hole of the pressure plate frame (6). A long through groove is provided at the bottom of each set of pressure plate frames (6).

4. The ball bearing cage forming mold with high-efficiency cooling as described in claim 1, characterized in that: The upper side of the turntable (14) near the outer edge is welded with an upper push rod (15). There are four sets of upper push rods (15). The upper push rods (15) are arranged in a ring array around the vertical central axis of the turntable (14). The upper push rods (15) are embedded in the long through groove of the pressure plate frame (6). The lower side of the turntable (14) near the outer edge is welded with a lower push column (13).

5. The ball bearing cage forming mold with high-efficiency cooling as described in claim 1, characterized in that: The left side of the slide plate (11) near the front end has a threaded through hole, and the left side of the slide plate (11) near the rear end has a through hole. The guide rod (12) is inserted into the through hole of the slide plate (11), and the outer side of the threaded rotating rod (16) is threadedly engaged in the threaded through hole of the slide plate (11).

6. The ball bearing cage forming mold with high-efficiency cooling as described in claim 1, characterized in that: The upper side of the base (1) is provided with a U-shaped zigzag path groove structure at the center position. The lower half of the cooling pipe (3) is placed in the U-shaped zigzag path groove of the base (1). The upper side of the base (1) is connected to the lower template (4) by bolts. The lower side of the lower template (4) is provided with a U-shaped zigzag path groove structure at the center position. The U-shaped zigzag path groove of the lower template (4) is vertically opposite to the U-shaped zigzag path groove of the base (1).

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