Mold structure capable of automatically demolding for injection molding of electric tool shell

Abstract

The utility model discloses a mold structure capable of automatically demolding for injection molding of an electric tool shell, which relates to the technical field of molds and comprises a base, and a plurality of support columns are fixedly mounted at the top of the base. During use, after injection molding operation is finished, an upper mold top plate moves upwards to drive a plurality of fixing blocks and a plurality of telescopic sleeves to synchronously move upwards, and at the moment, a plurality of telescopic rods and a plurality of bottom plates are in a static state under the action of a plurality of compression assemblies; and a plurality of telescopic rods and a plurality of bottom plates are driven to synchronously move upwards, so that a lifting plate is driven to drive a plurality of ejector rods to move upwards, and a mold subjected to injection molding is ejected out. After the mold is ejected out, the sliding block, the rectangular moving plate and the supporting plate are driven by the sliding assembly to horizontally move to the position below the mold, then the supporting plate is driven by the control assembly to move upwards, the supporting plate is driven by the sliding assembly to horizontally move, and the mold is taken down.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold structure capable of automatic demoulding for injection molding of an electric tool housing. Background Art

[0002] Injection molded products are common daily necessities. Due to their advantages of light weight, high strength, good durability, and strong assemblability, they are widely used in household products, medical equipment, building materials, sports equipment, etc. In the production process of injection molded products, the molten plastic material is usually stirred evenly by a screw extruder at a certain temperature, and then injected into the injection mold. The plastic material is formed in the cavity of the injection mold, and the molded injection molded product is obtained after cooling and solidification.

[0003] In the prior art, a patent with publication number CN211221886U discloses an injection mold structure that is convenient for demolding. The push plate is used to pull out the insert plate, and the two clamping plates are moved toward each other under the action of a spring, so that the injection molded product in the cavity falls off. However, in actual use, the ejected product is relatively unstable, and the temperature of the product after injection molding is high, which can easily cause high temperature burns when it is removed, and the protection is low. In view of the above problems, a mold structure that can be automatically demolded for injection molding of an electric tool housing is proposed. Utility Model Content

[0004] The purpose of the present application is to provide a mold structure that can be automatically demolded for the injection molding of an electric tool housing, so as to solve the problems raised in the above-mentioned background technology that the ejected product is relatively unstable in actual use, the temperature of the product after injection molding is high, and it is easy to cause high-temperature burns when removing it, and the protection is low.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a mold structure capable of automatic demolding for injection molding of an electric tool housing, comprising a base, a lower mold top plate, an upper mold top plate, and an upper mold bottom plate, wherein the upper mold top plate is adapted to the lower mold top plate, the upper mold bottom plate is arranged at the bottom of the upper mold top plate, a plurality of support columns are fixedly installed on the top of the base, the bottom of the lower mold top plate is fixedly connected to the tops of the plurality of support columns, two fixed blocks are arranged on both sides of the upper mold top plate, telescopic sleeves are fixedly installed on the bottoms of the four fixed blocks, telescopic rods are slidably installed in the four telescopic sleeves, and the four telescopic A bottom plate is fixedly installed at the bottom end of the rod, a compression assembly is arranged on the top of the four bottom plates, a lifting plate is fixedly installed on the sides of the four bottom plates, a plurality of ejector rods are fixedly installed on the top of the lifting plate, a plurality of ejector holes are opened on the bottom inner wall of the lower mold top plate, a plurality of ejector rods are slidably installed in the plurality of ejector holes respectively, a slide groove is opened on the top of the base, a slider is slidably installed in the slide groove through a sliding assembly, a rectangular movable plate is fixedly installed on the top of the slider, a rectangular hole is opened on the side of the rectangular movable plate, a support plate is slidably installed in the rectangular hole, and a control assembly is arranged at the bottom of the support plate.

[0006] Preferably, the compression assembly includes a compression spring, which is sleeved on the telescopic rod, the bottom end of the compression spring is fixedly mounted on the top of the base plate, and the top end of the compression spring is fixedly mounted on the bottom end of the telescopic sleeve.

[0007] Preferably, a buffer pad is provided at the bottom of the lifting plate and the bottoms of the plurality of bottom plates.

[0008] Preferably, the sliding assembly includes a screw rod, both ends of which are rotatably mounted on opposite inner walls of the slide groove, the slider is threadedly mounted on the screw rod, and a driving unit adapted to the screw rod is fixedly mounted on the side of the base.

[0009] Preferably, the driving unit comprises a driving motor, the driving motor is fixedly mounted on a side of the base, and an output shaft of the driving motor is connected to an end of the screw rod.

[0010] Preferably, the control component includes a hydraulic cylinder, an equipment groove is opened on the bottom inner wall of the rectangular hole, the hydraulic cylinder is fixedly installed in the equipment groove, and the output end of the hydraulic cylinder is fixedly connected to the bottom of the support plate.

[0011] Preferably, a plurality of guide rods are provided at the bottom of the upper die top plate, a plurality of guide grooves are opened at the top of the lower die top plate, and the plurality of guide rods are respectively matched with the plurality of guide grooves.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. In the utility model, after the injection molding operation is completed, the top plate of the upper mold moves upward, driving multiple fixed blocks and multiple telescopic sleeves to move upward synchronously. At this time, under the action of multiple compression components, multiple telescopic rods and multiple bottom plates are in a static state. When the multiple telescopic sleeves rise to the fixed position, they drive the multiple telescopic rods and multiple bottom plates to move upward synchronously, thereby driving the lifting plate to drive the multiple ejector rods to move upward, and ejecting the mold after injection molding. This arrangement can play a delayed ejection function, improve the stability of ejection, and facilitate subsequent removal.

[0014] 2. In the utility model, after the mold is ejected, the sliding assembly drives the slider, the rectangular movable plate, and the support plate to move horizontally to the bottom of the mold, and then the control assembly drives the support plate to move upward, thereby supporting the mold and lifting the mold to a certain height, and then the sliding assembly drives it to move horizontally, so as to remove the mold. The degree of automation is high, and high-temperature burns are effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of a three-dimensional structure of a mold structure capable of automatic demoulding for injection molding of a power tool housing in an embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of a partial cutaway structure of a lower mold top plate in an embodiment of the present application;

[0018] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 It is a schematic diagram of the partial cross-section structure of the bottom plate and the rectangular movable plate in the embodiment of the present application.

[0020] In the figure: 1. base; 2. support column; 3. lower mold top plate; 4. upper mold top plate; 5. upper mold bottom plate; 6. fixed block; 7. telescopic sleeve; 8. telescopic rod; 9. bottom plate; 10. compression spring; 11. lifting plate; 12. push rod; 13. slider; 14. screw; 15. drive motor; 16. rectangular moving plate; 17. support plate; 18. hydraulic cylinder; 19. guide rod. DETAILED DESCRIPTION

[0021] 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.

[0022] Example: Reference Figure 1-4 The mold structure with automatic demoulding for injection molding of a power tool housing shown in the figure comprises a base 1, a lower mold top plate 3, an upper mold top plate 4, and an upper mold bottom plate 5. The upper mold top plate 4 is adapted to the lower mold top plate 3, and the upper mold bottom plate 5 is arranged at the bottom of the upper mold top plate 4. A plurality of support columns 2 are fixedly installed on the top of the base 1, and the bottom of the lower mold top plate 3 is fixedly connected to the tops of the plurality of support columns 2. Two fixing blocks 6 are arranged on both sides of the upper mold top plate 4, and telescopic sleeves 7 are fixedly installed at the bottoms of the four fixing blocks 6, and telescopic rods 8 are slidably installed in the four telescopic sleeves 7, and the bottom ends of the four telescopic rods 8 are fixedly installed with bottom Plate 9, compression components are provided on the tops of the four bottom plates 9, a lifting plate 11 is fixedly installed on the sides of the four bottom plates 9, a plurality of ejector rods 12 are fixedly installed on the top of the lifting plate 11, a plurality of ejector holes are provided on the bottom inner wall of the lower mold top plate 3, and a plurality of ejector rods 12 are slidably installed in the plurality of ejector holes, a slide groove is provided on the top of the base 1, a slider 13 is slidably installed in the slide groove through a sliding component, a rectangular moving plate 16 is fixedly installed on the top of the slider 13, a rectangular hole is provided on the side of the rectangular moving plate 16, a support plate 17 is slidably installed in the rectangular hole, and a control component is provided at the bottom of the support plate 17.

[0023] By means of the above structure, when in use, after the injection molding operation is completed, the upper mold top plate 4 moves upward, driving multiple fixed blocks 6 and multiple telescopic sleeves 7 to move upward synchronously. At this time, under the action of multiple compression components, multiple telescopic rods 8 and multiple bottom plates 9 are in a stationary state. When multiple telescopic sleeves 7 rise to a fixed position, they drive multiple telescopic rods 8 and multiple bottom plates 9 to move upward synchronously, thereby driving the lifting plate 11 to drive multiple ejector rods 12 to move upward, and ejecting the mold after injection molding. This arrangement can play a delayed ejection function, improve the stability of ejection, and facilitate subsequent removal. After the mold is ejected, the sliding assembly drives the slider 13, the rectangular moving plate 16, and the support plate 17 to move horizontally to the bottom of the mold, and then drives the support plate 17 to move upward through the control assembly, which has a supporting effect on the mold, and lifts the mold to a certain height, and then drives it to move horizontally through the sliding assembly, so as to remove the mold. The degree of automation is high, and high temperature burns are effectively avoided.

[0024] like Figure 3As shown, the compression assembly includes a compression spring 10, which is sleeved on the telescopic rod 8, the bottom end of the compression spring 10 is fixedly mounted on the top of the bottom plate 9, and the top end of the compression spring 10 is fixedly mounted on the bottom end of the telescopic sleeve 7. The advantage of this arrangement is that, through the arrangement of the compression spring 10, when the telescopic sleeve 7 rises, the telescopic rod 8 and the bottom plate 9 can be temporarily stopped from moving through the elastic action of the compression spring 10.

[0025] Specifically, the upper mold top plate 4 moves upward, driving the multiple fixed blocks 6 and the multiple telescopic sleeves 7 to move upward synchronously. At this time, under the elastic action of the multiple compression springs 10, the multiple telescopic rods 8 and the multiple bottom plates 9 are in a static state. When the multiple telescopic sleeves 7 rise to the fixed position, they drive the multiple telescopic rods 8 and the multiple bottom plates 9 to move upward synchronously, thereby playing a delayed ejection function.

[0026] like Figure 3 As shown, buffer pads are provided at the bottom of the lifting plate 11 and the bottom of the multiple bottom plates 9. The advantage of such a configuration is that by providing buffer pads at the bottom of the lifting plate 11 and the multiple bottom plates 9, a buffering protection function can be provided when they come into contact with the base 1.

[0027] Specifically, when the lifting plate 11 and the plurality of bottom plates 9 move downward, they will contact the top of the base 1. By providing a buffer pad at the bottom thereof, it can play a buffering protection function in the event of a collision, thereby improving the protectiveness.

[0028] like Figure 4 As shown, the sliding assembly includes a screw rod 14, both ends of which are rotatably mounted on the opposite inner walls of the slide groove, and the slider 13 is threadedly mounted on the screw rod 14. A driving unit compatible with the screw rod 14 is fixedly mounted on the side of the base 1. The advantage of this arrangement is that through the arrangement of the screw rod 14, the slider 13 can be driven to move horizontally through the rotation of the screw rod 14.

[0029] Specifically, when the rectangular movable plate 16 needs to be moved, the screw rod 14 is rotated to drive the slider 13 and the rectangular movable plate 16 to achieve horizontal movement under the action of the thread, thereby driving the support plate 17 to move synchronously, so as to facilitate the removal of the mold.

[0030] like Figure 4 As shown, the driving unit includes a driving motor 15, which is fixedly mounted on the side of the base 1, and the output shaft of the driving motor 15 is connected to the end of the screw 14. The advantage of this arrangement is that the screw 14 can be driven to rotate through the arrangement of the driving motor 15.

[0031] Specifically, by providing the driving motor 15 , the screw rod 14 can be driven to rotate, which is convenient to use.

[0032] like Figure 4As shown, the control component includes a hydraulic cylinder 18, and an equipment groove is opened on the bottom inner wall of the rectangular hole. The hydraulic cylinder 18 is fixedly installed in the equipment groove, and the output end of the hydraulic cylinder 18 is fixedly connected to the bottom of the support plate 17. The advantage of this arrangement is that through the arrangement of the hydraulic cylinder 18, it is possible to drive the support plate 17 to move upward, so that the support plate 17 supports the mold and drives it to break away from the limit of the push rod 12, so as to facilitate its horizontal movement to be removed.

[0033] like Figure 2 As shown, a plurality of guide rods 19 are provided at the bottom of the upper mold top plate 4, and a plurality of guide grooves are opened at the top of the lower mold top plate 3. The plurality of guide rods 19 are respectively matched with the plurality of guide grooves. The advantage of such an arrangement is that, through the arrangement of the plurality of guide rods 19 and the plurality of guide grooves, a guiding effect can be played on the upper mold top plate 4 and the lower mold top plate 3.

[0034] Specifically, when the upper mold top plate 4 moves downward, the plurality of guide rods 19 and the plurality of guide grooves can provide a guiding function therefor.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mold structure capable of automatic demoulding for injection molding of a power tool housing, comprising a base (1), a lower mold top plate (3), an upper mold top plate (4), and an upper mold bottom plate (5), wherein the upper mold top plate (4) is matched with the lower mold top plate (3), and the upper mold bottom plate (5) is arranged at the bottom of the upper mold top plate (4), characterized in that: A plurality of support columns (2) are fixedly mounted on the top of the base (1), the bottom of the lower mold top plate (3) is fixedly connected to the tops of the plurality of support columns (2), two fixed blocks (6) are arranged on both sides of the upper mold top plate (4), telescopic sleeves (7) are fixedly mounted on the bottoms of the four fixed blocks (6), telescopic rods (8) are slidably mounted in the four telescopic sleeves (7), bottom plates (9) are fixedly mounted on the bottom ends of the four telescopic rods (8), compression components are arranged on the tops of the four bottom plates (9), and lifting plates (1) are fixedly mounted on the sides of the four bottom plates (9). 1), a plurality of push rods (12) are fixedly installed on the top of the lifting plate (11), a plurality of lifting holes are opened on the bottom inner wall of the lower mold top plate (3), and a plurality of push rods (12) are slidably installed in the plurality of lifting holes respectively, a slide groove is opened on the top of the base (1), a slider (13) is slidably installed in the slide groove through a sliding component, a rectangular movable plate (16) is fixedly installed on the top of the slider (13), a rectangular hole is opened on the side of the rectangular movable plate (16), a support plate (17) is slidably installed in the rectangular hole, and a control component is arranged at the bottom of the support plate (17).

2. The mold structure capable of automatic demoulding for injection molding of a power tool housing according to claim 1, characterized in that: The compression assembly comprises a compression spring (10), wherein the compression spring (10) is sleeved on the telescopic rod (8), the bottom end of the compression spring (10) is fixedly mounted on the top of the base plate (9), and the top end of the compression spring (10) is fixedly mounted on the bottom end of the telescopic sleeve (7).

3. The mold structure capable of automatic demoulding for injection molding of a power tool housing according to claim 1, characterized in that: The bottom of the lifting plate (11) and the bottoms of the plurality of bottom plates (9) are both provided with buffer pads.

4. The mold structure capable of automatic demoulding for injection molding of a power tool housing according to claim 1, characterized in that: The sliding assembly comprises a screw rod (14), the two ends of which are rotatably mounted on the opposite inner walls of the slide groove, the sliding block (13) is threadedly mounted on the screw rod (14), and a driving unit adapted to the screw rod (14) is fixedly mounted on the side of the base (1).

5. The mold structure capable of automatic demoulding for injection molding of a power tool housing according to claim 4, characterized in that: The driving unit comprises a driving motor (15), wherein the driving motor (15) is fixedly mounted on a side of the base (1), and an output shaft of the driving motor (15) is connected to an end of the screw rod (14).

6. The mold structure capable of automatic demoulding for injection molding of a power tool housing according to claim 1, characterized in that: The control component comprises a hydraulic cylinder (18), the bottom inner wall of the rectangular hole is provided with an equipment slot, the hydraulic cylinder (18) is fixedly installed in the equipment slot, and the output end of the hydraulic cylinder (18) is fixedly connected to the bottom of the support plate (17).

7. The mold structure capable of automatic demoulding for injection molding of a power tool housing according to claim 1, characterized in that: A plurality of guide rods (19) are arranged at the bottom of the upper die top plate (4), and a plurality of guide grooves are opened at the top of the lower die top plate (3), and the plurality of guide rods (19) are respectively matched with the plurality of guide grooves.

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