An epoxy resin sleeve demolding tool

Abstract

This utility model provides a demolding fixture for epoxy resin sleeves, including a first mold and a second mold. The demolding fixture includes: a support bracket with a mounting shell at its top; a sliding rod slidably connected to the mounting shell in the vertical direction; and a disc with two ejector pins symmetrically distributed on its bottom surface, the two ejector pins being adapted to the demolding hole. This utility model relates to the field of demolding fixture technology. By placing the first mold and the second mold connected together at the bottom of the two ejector pins, the sliding rod is driven to move downward in the mounting shell under the action of a driving component. The sliding rod then drives the ejector pins to extend into the demolding hole, and the ejector pins push the first mold and the second mold apart, thereby changing the demolding method of manual demolding and improving the demolding efficiency of the first mold and the second mold.

Description

Technical Field

[0001] This utility model relates to the field of demolding tooling technology, and in particular to a demolding tooling for epoxy resin sleeves. Background Technology

[0002] The production of epoxy resin sleeves requires the use of two corresponding molding dies. After the two dies are joined and assembled (the first die has a threaded hole, and the top of the second die has an integrally formed flange, and the two are connected by bolts), a closed cavity is formed. This cavity is used to contain the injected molten material and form the sleeve after cooling and solidification. During demolding, after removing the bolts connecting the molds, the epoxy resin, after curing, forms a strong adhesion to the surface of the metal mold, causing the two molds to not separate smoothly. The demolding method of manually pulling the mold apart is time-consuming and laborious, affecting the demolding efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide an epoxy resin sleeve demolding tooling to improve the demolding efficiency between molding dies.

[0004] This utility model provides a demolding fixture for epoxy resin sleeves, including a first mold and a second mold. The top surface of the first mold has symmetrically formed demolding holes. After the first mold and the second mold are assembled together, their molding surfaces together form a closed cavity. The cavity is used to inject molten material to manufacture epoxy resin sleeves. The demolding fixture includes: A support bracket has a mounting shell at its top, and an opening is machined on one side of the mounting shell; A sliding rod is slidably connected to the mounting shell in the vertical direction. The bottom end of the sliding rod is machined with a cylindrical groove, and the outer circumference of the sliding rod is uniformly provided with toothed grooves. A disc, wherein a connecting pin is integrally formed at the axis of the top surface of the disc, the connecting pin extends into the slot, and the connecting pin is connected to the sliding rod by a screw; The bottom surface of the disk has two ejector pins symmetrically distributed, and the two ejector pins are adapted to the demolding hole; A driving component, which is used to drive the sliding rod to move vertically.

[0005] Preferably, the driving element includes; A gear, which is rotatably connected to the mounting housing via a pin, and whose teeth mesh with the grooves of the sliding rod; An end cap is used to close the open end of the mounting shell. The end cap is connected to the mounting shell by screws, and a through hole is provided at the center of the end cap. The end of the pin away from the mounting housing extends outward along the through hole; A rocker arm, one end of which is machined with a spherical block, and the other end of which is integrally formed with a fixing block, wherein the fixing block is detachably connected to the pin shaft.

[0006] Preferably, a reset assembly is provided at the top of the mounting housing; The reset component includes: An L-shaped rod is vertically connected to the top of the mounting housing; A skateboard, wherein the skateboard is slidably connected to the L-shaped rod, and the skateboard is fixedly connected to the top end of the sliding rod; A tension spring, one end of which is connected to the L-shaped rod, and the other end of which is connected to the slide plate.

[0007] Preferably, the bottom of the skateboard is provided with two silicone shock-absorbing blocks.

[0008] Preferably, the support bracket includes: A support rod has a sleeve slidably connected to its outer periphery, and the outer periphery of the sleeve is fixedly connected to the mounting shell. The sleeve is connected to the support rod via a locating pin; The bottom end of the support rod is fixedly connected to a base.

[0009] Preferably, the upper surface of the base is provided with a mold receiving assembly; The mold receiving assembly includes: A chassis, the bottom end of which is fixedly connected to the base; A strip plate, the bottom end of which is connected to the chassis, and a receiving ring is disposed at the top end of which the axis of the receiving ring coincides with the axis of the chassis; The receiving ring has a stepped groove, which is used to receive the first mold.

[0010] Preferably, the receiving ring is provided with a top pin, which is used to abut against the first mold located in the stepped groove.

[0011] Preferably, the upper surface of the chassis has a downwardly recessed arc-shaped groove, and a cushioning pad is laid in the arc-shaped groove.

[0012] This utility model provides a demolding tool for epoxy resin sleeves: By using a support bracket, mounting shell, sliding rod, disc, ejector pin, and driving component in conjunction, when demolding the first mold and the second mold, the disc is installed at the bottom of the sliding rod via a connecting pin. The connecting pin is then connected to the sliding rod with screws. The first mold and the second mold, which are connected together, are then placed at the bottom of the two ejector pins. Under the action of the driving component, the sliding rod is driven to move downward in the mounting shell. The sliding rod then drives the ejector pin to extend into the demolding hole. The ejector pin pushes the first mold and the second mold apart, changing the demolding method of manual demolding and improving the demolding efficiency of the first mold and the second mold. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial sectional view of the mounting shell of this utility model; Figure 3 This is a schematic diagram of the structure of the sliding rod, disc, ejector pin, and connecting pin of this utility model; Figure 4 This is a schematic diagram of the structure of the L-shaped rod, sliding plate, shock absorber, and tension spring in this utility model; Figure 5 This is a structural diagram of the chassis, buffer pad, strip plate, receiving ring, and top pin in this utility model; Figure 6 This is an assembly drawing of the first mold, the second mold, and the mold receiving assembly in this utility model; Figure 7 This is a schematic diagram of the structure of the first mold, the demolding hole, and the second mold in this utility model.

[0015] Explanation of reference numerals in the attached figures: 1-First mold, 11-Demolding hole, 12-Second mold, 2-Bearing bracket, 21-Support rod, 211-Sleeve, 212-Positioning pin, 22-Base, 3-Mounting shell, 4-Sliding rod, 41-Slot, 5-Disc, 51-Connecting pin, 52-Ejector pin, 6-Drive component, 61-Gear, 611-Pin, 62-End cap, 621-Through hole, 63-Rock arm, 631-Spherical block, 632-Fixing block, 31-Reset assembly, 311-L-shaped rod, 312-Slide plate, 312a-Shock absorber block, 313-Tension spring, 7-Mold receiving assembly, 71-Chassis, 711-Buffer pad, 72-Strip plate, 73-Receiving ring, 731-Ejector pin. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this embodiment, as Figure 1 and Figure 7 As shown, an epoxy resin sleeve demolding fixture includes a first mold 1 and a second mold 12. The top surface of the first mold 1 is symmetrically provided with demolding holes 11. After the first mold 1 and the second mold 12 are assembled together, their molding surfaces together form a closed cavity. The cavity is used to inject molten material to manufacture the epoxy resin sleeve. The demolding fixture includes: a support bracket 2, with a mounting shell 3 at its top, and an opening machined on one side of the mounting shell 3; a sliding rod 4, which is slidably connected to the mounting shell 3 in the vertical direction, with a cylindrical groove 41 machined at the bottom end of the sliding rod 4, and evenly spaced toothed grooves on the outer circumference of the sliding rod 4; a disc 5, with a connecting pin 51 integrally formed at the axis of the top surface of the disc 5, the connecting pin 51 extending into the groove 41, and the connecting pin 51 connected to the sliding rod 4 by screws; two ejector pins 52 symmetrically distributed on the bottom surface of the disc 5, the two ejector pins 52 being adapted to the demolding hole 11; and a driving component 6, which is used to drive the sliding rod 4 to move vertically.

[0020] Thus, molten material is injected into the closed cavity formed by the first mold 1 and the second mold 12. After cooling and shaping, the epoxy resin sleeve is manufactured. When demolding the first mold 1 and the second mold 12, the disc 5 is installed at the bottom end of the sliding rod 4 through the connecting pin 51. The connecting pin 51 is connected to the sliding rod 4 with screws. At this time, the two ejector pins 52 are set downward. Then, the first mold 1 and the second mold 12 connected together are placed at the bottom end of the two ejector pins 52. Under the action of the driving component 6, the sliding rod 4 is driven to move downward in the mounting shell 3. Then, the sliding rod 4 drives the ejector pins 52 to extend into the demolding hole 11 of the first mold 1. The ejector pins 52 push the first mold 1 and the second mold 12 to separate.

[0021] Specifically, the bottom of the first mold 1 is machined with a cylindrical protrusion that extends into the second mold 12, and an injection port is also machined in the first mold 1; the top edge of the second mold 12 is flange-shaped for connection with the first mold 1; the support bracket 2 is used to fix the position of the mounting shell 3, the interior of the mounting shell 3 is hollow, and an opening is machined on one side; the sliding rod 4 can move vertically in the mounting shell 3; the disc 5 is detachably connected to the sliding rod 4, and the design of the two ejector pins 52 is adapted to the design position of the demolding hole 11 so that the ejector pins 52 can be inserted into the demolding hole 11.

[0022] It should be noted that the demolding hole 11 should be designed to be staggered with the threaded hole for connection in order to facilitate demolding.

[0023] In some embodiments, such as Figure 2As shown, the driving component 6 includes: a gear 61, which is rotatably connected to the mounting housing 3 via a pin 611, and the teeth of the gear 61 mesh with the tooth groove of the sliding rod 4; an end cap 62, which is used to close the open end of the mounting housing 3, and the end cap 62 is connected to the mounting housing 3 by screws, and a through hole 621 is provided at the center of the end cap 62; one end of the pin 611 away from the mounting housing 3 extends outward along the through hole 621; a rocker arm 63, one end of which is machined with a spherical block 631, and the other end of which is integrally formed with a fixing block 632, and the fixing block 632 is detachably connected to the pin 611.

[0024] Specifically, gear 61 is placed inside mounting housing 3 through an opening on one side of the mounting housing 3. One end of pin 611 is rotatably connected to mounting housing 3 via a bearing. Pin 611 is fixedly connected to gear 61, allowing pin 611 to drive gear 61 to rotate. The design of gear 61's teeth meshing with the tooth groove of sliding rod 4 allows the rotation of gear 61 to drive sliding rod 4 to move vertically. The four corners of end cap 62 are connected to mounting housing 3 with screws to close the opening of mounting housing 3. Through hole 621 is used to constrain pin 611. In actual use, bearings can also be designed to connect through hole 621 and pin 611. The rocker arm 63 is designed to increase the lever arm. The fixing block 632 is connected to pin 611 via screws. The fixing block 632 and pin 611 are detachable, facilitating the disassembly of rocker arm 63 for maintenance of the interior of mounting housing 3.

[0025] In some embodiments, such as Figure 1 and Figure 4 As shown, a reset assembly 31 is configured at the top of the mounting housing 3; the reset assembly 31 includes: an L-shaped rod 311, which is vertically connected to the top of the mounting housing 3; a sliding plate 312, which is slidably connected to the L-shaped rod 311 and fixedly connected to the top of the sliding rod 4; and a tension spring 313, one end of which is connected to the L-shaped rod 311 and the other end of which is connected to the sliding plate 312.

[0026] Specifically, the L-shaped rod 311 is made of stainless steel and has a certain strength. The slide plate 312 can slide up and down along the outer periphery of the L-shaped rod 311. The tension spring 313 is used to connect the slide plate 312 and the L-shaped rod 311 together. The slide plate 312 is used to lift the sliding rod 4 to move. In addition, when the tension spring 313 is in the contracted state, the slide plate 312 is located in the upper middle position of the L-shaped rod 311 to fix the initial position of the sliding rod 4 in the mounting housing 3.

[0027] In some embodiments, such as Figure 4 As shown, the bottom of the skateboard 312 is equipped with two silicone shock-absorbing blocks 312a; Specifically, the silicone shock absorber 312a is placed between the slide plate 312 and the mounting shell 3 to buffer the impact force of the slide plate 312 on the mounting shell 3.

[0028] In some embodiments, such as Figure 6 As shown, the support bracket 2 includes: a support rod 21, with a sleeve 211 slidably connected to its outer periphery, and the outer periphery of the sleeve 211 being fixedly connected to the mounting shell 3; the sleeve 211 is connected to the support rod 21 via a positioning pin 212; and a base 22 is fixedly connected to the bottom end of the support rod 21. Specifically, the sleeve 211 can be adjusted up and down around the outer periphery of the support rod 21 to change the height of the mounting shell 3; the positioning pin 212 is designed to fix the position of the sleeve 211 on the support rod 21, and the base 22 supports the overall mechanism.

[0029] In some embodiments, such as Figure 5 As shown, a mold receiving assembly 7 is disposed on the upper surface of the base 22; the mold receiving assembly 7 includes: a base plate 71, the bottom end of which is fixedly connected to the base 22; a strip plate 72, the bottom end of which is connected to the base plate 71, and a receiving ring 73 disposed on the top end of the strip plate 72, the axis of which coincides with the axis of the base plate 71; a stepped groove is provided in the receiving ring 73 for receiving the first mold 1; Specifically, the chassis 71 and the base 22 are arranged in parallel. The strip plate 72 is used to connect the chassis 71 and the receiving ring 73. The stepped groove in the receiving ring 73 is used to store the first mold 1, and the first mold 1 can be stuck in the stepped groove.

[0030] In some embodiments, such as Figure 5 As shown, a top pin 731 is provided in the receiving ring 73, and the top pin 731 is used to abut against the first mold 1 located in the stepped groove.

[0031] Specifically, the number of top pins 731 used is not specifically limited. The top pins 731 fix the first mold 1 in the receiving ring 73.

[0032] In some embodiments, such as Figure 5 As shown, the upper surface of the chassis 71 is provided with a downwardly recessed arc-shaped groove, and a buffer pad 711 is laid in the arc-shaped groove. Specifically, the buffer pad 711 is made of rubber material. When the second mold 12 separates and falls, the buffer pad 711 can buffer the impact force of the second mold 12 on the chassis 71.

[0033] The working principle of this application is illustrated below with a preferred embodiment: Remove the fixing bolts connecting the first mold 1 and the second mold 12 (because the epoxy resin forms a strong adhesion to the surface of the metal mold after curing, the first mold 1 and the second mold 12 will not be directly separated). Then install the first mold 1 and the second mold 12 into the receiving ring 73. Rotate the ejector pin 731 to press the first mold 1 in the receiving ring 73. Before fixing the first mold 1 in the receiving ring 73, it is necessary to make the demolding hole 11 and the ejector pin 52 on the same vertical line. Then, the rocker arm 63 is rotated, and the rocker arm 63 drives the pin 611 to rotate through the fixed block 632. As the pin 611 rotates, the gear 61 located on the outer periphery of the pin 611 drives the sliding rod 4 to move downward in the mounting shell 3. As a result, the disc 5 located at the bottom of the sliding rod 4 moves downward. The disc 5 drives the two ejector pins 52 to insert into the demolding hole 11. As the ejector pins 52 continue to move downward, they push the flange of the second mold 12 to separate the first mold 1 and the second mold 12. The second mold 12 falls into the groove of the base 71, and the buffer pad 711 provides cushioning. When the sliding rod 4 moves downward in the mounting housing 3, the top of the sliding rod 4 drives the slide plate 312 to move downward along the outer periphery of the L-shaped rod 311. The slide plate 312 stretches the tension spring 313 to assist the sliding rod 4 in moving downward in the mounting housing 3.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A demolding fixture for epoxy resin sleeves, comprising a first mold (1) and a second mold (12), wherein the top surface of the first mold (1) is symmetrically provided with demolding holes (11), and after the first mold (1) and the second mold (12) are assembled together, their molding surfaces together form a closed cavity, the cavity being used to inject molten material to manufacture epoxy resin sleeves, characterized in that, The demolding fixture includes: The support bracket (2) has a mounting shell (3) at its top, and an opening is machined on one side of the mounting shell (3); The sliding rod (4) is slidably connected to the mounting shell (3) in the vertical direction. The bottom end of the sliding rod (4) is machined with a cylindrical groove (41), and the outer periphery of the sliding rod (4) is uniformly provided with toothed grooves. The disc (5) has a connecting pin (51) integrally formed at the top axis of the disc (5), the connecting pin (51) extends into the slot (41), and the connecting pin (51) is connected to the sliding rod (4) by screws. The bottom surface of the disk (5) has two ejector pins (52) symmetrically distributed, and the two ejector pins (52) are adapted to the demolding hole (11); The driving component (6) is used to drive the sliding rod (4) to move vertically.

2. The demolding fixture according to claim 1, characterized in that, The driving component (6) includes; Gear (61), the gear (61) is rotatably connected in the mounting housing (3) by a pin (611), and the teeth of the gear (61) mesh with the tooth groove of the sliding rod (4); End cap (62) is used to close the opening end of the mounting shell (3). The end cap (62) is connected to the mounting shell (3) by screws. A through hole (621) is provided at the center of the end cap (62). The pin (611) extends outward along the through hole (621) at one end away from the mounting housing (3); A rocker arm (63) has a spherical block (631) machined at one end and a fixing block (632) integrally formed at the other end. The fixing block (632) is detachably connected to the pin (611).

3. The demolding fixture according to claim 1, characterized in that, The top of the mounting housing (3) is provided with a reset assembly (31); The reset component (31) includes: L-shaped rod (311), which is vertically connected to the top of the mounting housing (3); The sliding plate (312) is slidably connected to the L-shaped rod (311), and the sliding plate (312) is fixedly connected to the top end of the sliding rod (4); A tension spring (313) is provided, one end of which is connected to the L-shaped rod (311), and the other end of which is connected to the slide plate (312).

4. The demolding fixture according to claim 3, characterized in that, The bottom of the skateboard (312) is provided with two silicone shock absorbers (312a).

5. The demolding fixture according to claim 1, characterized in that, The support bracket (2) includes: A support rod (21) has a sleeve (211) slidably connected to its outer periphery, and the outer periphery of the sleeve (211) is fixedly connected to the mounting shell (3); The sleeve (211) is connected to the support rod (21) via a positioning pin (212); The bottom end of the support rod (21) is fixedly connected to the base (22).

6. The demolding fixture according to claim 5, characterized in that, The upper surface of the base (22) is provided with a mold receiving component (7). The mold receiving assembly (7) includes: The chassis (71) is fixedly connected to the base (22) at its bottom end; A strip plate (72) is provided, the bottom end of which is connected to the chassis (71), and a receiving ring (73) is provided at the top end of the strip plate (72), the axis of which coincides with the axis of the chassis (71); The receiving ring (73) has a stepped groove, which is used to receive the first mold (1).

7. The demolding fixture according to claim 6, characterized in that, The receiving ring (73) is provided with a top pin (731) for abutting against the first mold (1) located in the stepped groove.

8. The demolding fixture according to claim 6, characterized in that, The upper surface of the chassis (71) is provided with a downwardly recessed arc-shaped groove, and a buffer pad (711) is laid in the arc-shaped groove.

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