Injection molding mold convenient for keycap demolding

Abstract

The utility model discloses an injection molding mould convenient for demoulding a keycap. The injection molding mould comprises a mounting base, an ejector plate and an upper mould, wherein the top of the mounting base is fixedly connected with a lower mould, a sleeve, an ejector plate and an upper mould, the sleeve is sleeved on the surface of the lower mould, the ejector plate is arranged in the lower mould, and the upper mould is arranged above the lower mould. According to the injection molding mold convenient for keycap demolding, the mounting base, the lower mold, the sleeve, the ejector plate and the upper mold are matched with one another, injection molding raw materials are injected into the lower mold, the lifting air cylinder pushes the lifting frame to descend, and the upper mold presses the sleeve downwards; under the driving of the supporting rod, the reset spring is stretched until the sleeve is flush with the lower die, the stamping operation is completed, after stamping is completed, the upper die ascends, the reset spring rebounds, the sleeve is driven to ascend, the ejection plate ascends, the stamped key cap is ejected out, the key cap is prevented from being stuck, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding molds, in particular to an injection molding mold which is convenient for key cap demoulding. Background Art

[0002] In the field of keyboard production technology, most manufacturers generally use a single key mold molding method to perform keycap injection molding. Since the keys are small, the finished product is prone to sticking in the mold after injection molding in the injection molding mold in the prior art, which makes demolding more difficult and reduces processing efficiency. Therefore, it is necessary to propose an injection molding mold that is convenient for keycap demolding. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides an injection molding mold which is convenient for demoulding a key cap.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An injection molding mold for keycap demoulding is provided, comprising: a mounting base, the top of which is fixedly connected to a lower mold;

[0006] A sleeve, wherein the sleeve is sleeved on the surface of the lower mold;

[0007] An ejector plate, the ejector plate being arranged inside the lower mold;

[0008] The upper mold is arranged above the lower mold.

[0009] The above-mentioned injection molding mold that facilitates demoulding of keycaps, wherein a connecting rod is fixedly connected to the bottom of the ejection plate;

[0010] A bottom plate, the bottom plate is fixedly connected to the bottom of the connecting rod;

[0011] A connecting rod connects the sleeve to the base plate.

[0012] The above-mentioned injection molding mold for facilitating demoulding of keycaps, wherein a slide groove is provided on the top of the mounting base;

[0013] A slide bar, the slide bar is fixedly connected to the inside of the slide groove;

[0014] A slider, wherein the slider is sleeved on the surface of the slide rod;

[0015] A return spring connects the slide block to the slide slot.

[0016] The above-mentioned injection molding mold for facilitating demoulding of keycaps, wherein a mounting block is fixedly connected to the surface of the sleeve;

[0017] A support rod connects the mounting block to the slide block.

[0018] The above-mentioned injection molding mold for facilitating demoulding of keycaps, wherein a knife groove is provided on the top of the lower mold;

[0019] A cutting knife is fixedly connected to the bottom of the upper mold, and the position of the cutting knife corresponds to the knife groove.

[0020] The above-mentioned injection molding mold for facilitating demoulding of keycaps, wherein the top of the upper mold is fixedly connected with a lifting frame;

[0021] An air cavity, wherein the air cavity is opened inside the lifting frame;

[0022] An exhaust hole, wherein the exhaust hole connects the upper mold with the air cavity;

[0023] An air pipe joint is fixedly connected to the top of the lifting frame and communicated with the air cavity.

[0024] The above-mentioned injection molding mold for facilitating demoulding of keycaps, wherein the top of the mounting base is fixedly connected with four fixing rods;

[0025] A top plate, which is fixedly connected to the top of the fixing rods and connects the four fixing rods;

[0026] A lifting cylinder is fixedly connected to the bottom of the top plate.

[0027] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0028] 1. The utility model realizes an injection molding mold which is convenient for demolding the keycaps by the mutual cooperation among the mounting base, the lower mold, the sleeve, the ejector plate and the upper mold. The injection molding material is injected into the lower mold, the lifting cylinder pushes the lifting frame down, the upper mold presses the sleeve down, and the reset spring is stretched under the drive of the support rod until the sleeve is flush with the lower mold to complete the stamping operation. After the stamping is completed, the upper mold rises, the reset spring rebounds, drives the sleeve to rise, and the ejector plate rises to eject the stamped keycaps, so as to avoid the keycaps from sticking and improve the processing efficiency.

[0029] 2. In the present invention, a cutting knife is provided to cut the edge of the key cap after stamping, thereby improving the molding effect of the product.

[0030] 3. In the utility model, the air cavity and the exhaust hole are provided to blow air into the gap between the upper mold and the lower mold, thereby accelerating the cooling speed of the keycap after stamping and improving the processing efficiency.

[0031] 4. In the utility model, the knife groove is provided to store the cutting knife, so as to prevent the cutting knife from being damaged by collision during the punching process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural cross-sectional view of the main view of the utility model;

[0033] Figure 2 It is a structural cross-sectional view of the top view of the utility model;

[0034] Figure 3 It is a cross-sectional view of the lifting frame, air cavity and exhaust hole of the utility model.

[0035] In the figure:

[0036] 1 mounting base, 2 lower mold, 3 sleeve, 4 ejector plate, 5 upper mold, 6 connecting rod, 7 bottom plate, 8 connecting rod, 9 slide groove, 10 slide rod, 11 slider, 12 return spring, 13 mounting block, 14 support rod, 15 knife groove, 16 cutting knife, 17 lifting frame, 18 air cavity, 19 exhaust hole, 20 air pipe joint, 21 fixing rod, 22 ejector plate, 23 lifting cylinder. DETAILED DESCRIPTION

[0037] 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.

[0038] like Figure 1-3 As shown, an injection molding mold for keycap demoulding is provided, comprising: a mounting base 1, a slide groove 9 is provided on the top of the mounting base 1.

[0039] The slide bar 10 is fixedly connected to the inside of the slide groove 9.

[0040] The slider 11 is sleeved on the surface of the slide bar 10 .

[0041] The return spring 12 connects the slider 11 to the slide slot 9 .

[0042] The top of the mounting base 1 is fixedly connected with a lower mold 2. A knife groove 15 is provided on the top of the lower mold 2 to accommodate a cutting knife 16 to prevent the cutting knife 16 from being damaged by collision during the stamping process.

[0043] The cutting knife 16 is fixedly connected to the bottom of the upper mold 5. The position of the cutting knife 16 corresponds to the knife groove 15. The cutting knife 16 cuts the edge of the keycap after stamping, thereby improving the molding effect of the product.

[0044] The sleeve 3 is sleeved on the surface of the lower mold 2 , and the surface of the sleeve 3 is fixedly connected with a mounting block 13 .

[0045] The support rod 14 connects the mounting block 13 with the sliding block 11 .

[0046] The ejector plate 4 is arranged inside the lower mold 2 , and a connecting rod 6 is fixedly connected to the bottom of the ejector plate 4 .

[0047] Bottom plate 7, bottom plate 7 is fixedly connected to the bottom of connecting rod 6.

[0048] A connecting rod 8 connects the sleeve 3 with the base plate 7 .

[0049] The upper mold 5 is arranged above the lower mold 2 , and a lifting frame 17 is fixedly connected to the top of the upper mold 5 .

[0050] The air cavity 18 is opened inside the lifting frame 17 .

[0051] The exhaust hole 19 connects the upper mold 5 with the air cavity 18, and blows air into the gap between the upper mold 5 and the lower mold 2, thereby accelerating the cooling speed of the keycap after stamping and improving the processing efficiency.

[0052] The air pipe joint 20 is fixedly connected to the top of the lifting frame 17 and communicated with the air cavity 18 .

[0053] Four fixing rods 21 are fixedly connected to the top of the mounting base 1 .

[0054] The top plate 22 is fixedly connected to the top of the fixing rods 21 and connects the four fixing rods 21 .

[0055] The lifting cylinder 23 is fixedly connected to the bottom of the top plate 22, and the injection molding material is injected into the lower mold 2. The lifting cylinder 23 pushes the lifting frame 17 to descend, and the upper mold 5 presses down the sleeve 3. Driven by the fixed rod 21, the return spring 12 is stretched until the sleeve 3 is flush with the lower mold 2 to complete the stamping operation. After the stamping is completed, the upper mold 5 rises, and the return spring 12 rebounds, driving the sleeve 3 to rise, so that the ejection plate 4 rises, and the stamped keycaps are ejected to avoid the keycaps from sticking, thereby improving the processing efficiency.

[0056] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0057] The utility model provides an injection molding mold which is convenient for demolding keycaps. When in use, the injection molding material is injected into the lower mold 2, the lifting cylinder 23 pushes the lifting frame 17 to descend, and the upper mold 5 presses the sleeve 3 downward, and the reset spring 12 is stretched under the drive of the fixing rod 21 until the sleeve 3 is flush with the lower mold 2, and the stamping operation is completed. At this time, an air pump connected to the air pipe joint 20 is used to blow air into the gap between the upper mold 5 and the lower mold 2 through the exhaust hole 19 connected to the air cavity 18 to accelerate the cooling of the stamped parts, and the cutting knife 16 cuts the edge of the stamped keycap. After the stamping is completed, the upper mold 5 rises, the reset spring 12 rebounds, drives the sleeve 3 to rise, and makes the ejection plate 4 rise to eject the stamped keycap.

[0058] In summary, the injection molding mold for keycap demoulding solves the problems mentioned in the background art by the mutual cooperation among the mounting base 1, the lower mold 2, the sleeve 3, the ejector plate 4 and the upper mold 5.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding mold for facilitating demoulding of a key cap, comprising: The mounting base (1) is characterized in that a lower mold (2) is fixedly connected to the top of the mounting base (1); A sleeve (3), wherein the sleeve (3) is sleeved on the surface of the lower mold (2); An ejector plate (4), wherein the ejector plate (4) is arranged inside the lower mold (2); An upper mold (5), wherein the upper mold (5) is arranged above the lower mold (2).

2. The injection molding mold for facilitating keycap demoulding according to claim 1, characterized in that: The bottom of the ejection plate (4) is fixedly connected with a connecting rod (6); A bottom plate (7), wherein the bottom plate (7) is fixedly connected to the bottom of the connecting rod (6); A connecting rod (8) connects the sleeve (3) and the base plate (7).

3. The injection molding mold for facilitating keycap demoulding according to claim 2, characterized in that: A slide groove (9) is provided on the top of the mounting base (1); A slide bar (10), wherein the slide bar (10) is fixedly connected to the inside of the slide groove (9); A slider (11), wherein the slider (11) is sleeved on the surface of the slide rod (10); A return spring (12), wherein the return spring (12) connects the slide block (11) to the slide groove (9).

4. The injection molding die for facilitating demoulding of key caps according to claim 3, characterized in that: A mounting block (13) is fixedly connected to the surface of the sleeve (3); A support rod (14) connects the mounting block (13) and the sliding block (11).

5. The injection molding die for facilitating demoulding of key caps according to claim 4, characterized in that: A knife groove (15) is provided on the top of the lower mold (2); A cutting knife (16), wherein the cutting knife (16) is fixedly connected to the bottom of the upper mold (5), and the position of the cutting knife (16) corresponds to the position of the knife groove (15).

6. The injection molding die for facilitating demoulding of key caps according to claim 5, characterized in that: The top of the upper mold (5) is fixedly connected with a lifting frame (17); An air cavity (18), wherein the air cavity (18) is opened inside the lifting frame (17); An exhaust hole (19), wherein the exhaust hole (19) connects the upper mold (5) with the air cavity (18); An air pipe joint (20) is fixedly connected to the top of the lifting frame (17) and communicated with the air cavity (18).

7. The injection molding die for facilitating demoulding of key caps according to claim 6, characterized in that: Four fixing rods (21) are fixedly connected to the top of the mounting base (1); A top plate (22), wherein the top plate (22) is fixedly connected to the top of the fixing rod (21) and connects the four fixing rods (21); A lifting cylinder (23), wherein the lifting cylinder (23) is fixedly connected to the bottom of the top plate (22).

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