CN223236851U - Injection mold - Google Patents

Abstract

The utility model provides an injection mold, including cope match-plate pattern, lower bolster, cope match-plate pattern, lower bolster set gradually, and cope match-plate pattern is close to lower bolster one side and is connected with the mould benevolence, and lower bolster is close to cope match-plate pattern one side and is connected with the lower mould benevolence. The lower template is connected with a sliding block in a sliding way, and the upper template is connected with an inclined guide post. When the die is assembled, the inclined guide pillar stretches into a through hole formed in the sliding block, the upper die core is abutted with the lower die core, one side of the sliding block is abutted with the upper die core and the lower die core, the upper die core, the lower die core and the sliding block form a die cavity, the die cavity is in a transverse Y shape, the forked parts of the die cavity are respectively arranged on the upper side and the lower side of the sliding block, and the pouring gate is arranged on the end face of one side of the die cavity far away from the sliding block. The utility model discloses the runner setting combines the follow-up die-cut process to cut the runner leftover bits off at the terminal surface, under the circumstances that does not increase extra process, ensures that the whole outward appearance quality of die-cut product is high, and product surface smoothness is high, reduces the bacterium and hides the space.

Description

Injection mold

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold.

Background

A injection molding for medical field has strict requirement, and this product shape is special, needs to ensure that the melt fills evenly, guarantees product quality to ensure can cooperate other parts work. In order to reduce the space hidden by bacteria and reduce the infection risk, the surface quality with high quality is needed, the common pouring gate design is adopted, the melting stock is left with residual materials after cooling, the melting stock is easy to adhere to products and not easy to be cut off cleanly, so that the surface is uneven, and the requirements cannot be met.

Therefore, the above-described problems are to be solved.

Disclosure of utility model

The utility model aims to overcome the defects, and provides the injection mold which can be used for producing a plurality of parts by one-time injection, so that the production efficiency is improved, the gate residual material is easy to remove, the appearance quality and the surface smoothness of a workpiece are ensured after the gate residual material is removed, and the bacteria hiding space is reduced.

In order to achieve the above purpose, the utility model provides an injection mold, which comprises an upper mold plate and a lower mold plate, wherein the upper mold plate and the lower mold plate are sequentially arranged, one side of the upper mold plate, which is close to the lower mold plate, is connected with an upper mold core, and one side of the lower mold plate, which is close to the upper mold plate, is connected with a lower mold core. The lower template is connected with a sliding block in a sliding way, and the upper template is connected with an inclined guide post. When the mold is closed, the inclined guide post stretches into the through hole formed in the sliding block, the upper die core is abutted with the lower die core, one side of the sliding block is abutted with the upper die core and the lower die core, and the upper die core, the lower die core and the sliding block form a mold cavity. The die cavity is in a transverse Y shape, the forked parts of the die cavity are respectively arranged at the upper side and the lower side of the sliding block, the pouring gate is arranged in the die cavity an end face at one side far away from the sliding block. When the utility model is used for production, the mould is connected to an injection molding machine, then the upper mould plate and the lower mould plate are assembled, the inclined guide post pushes the sliding block to move, one side of the sliding block is abutted against the upper mould core and the lower mould core to form a mould cavity, molten materials are injected into the mould cavity, the upper mould plate and the lower mould plate are separated after the molten materials are cooled, and the formed product is taken out. The utility model has high production efficiency, and when demoulding, the slide block laterally demoulds, thereby improving the flexibility of the mould, facilitating the product to be separated from the mould cavity and reducing the labor cost. The Y-shaped mold cavity enables plastic melt to enter the mold cavity rapidly, the gate is arranged on the end face of one side far away from the branching of the mold cavity, so that the branching part of the mold cavity is fully filled, the pressure balance of the branching part of the mold cavity is ensured, the branching part of the mold cavity is fully filled with the melt, and the product quality is ensured. The traditional injection molding method is that the pouring gate is arranged at the intersection point position of the center of the product so as to ensure uniform pressure in all directions, but the pouring gate residual material at the center is not easy to remove and is easy to leave residual material. According to the utility model, the pouring gate is arranged on the end face, the pouring gate residual material is cut off in combination with the subsequent punching process, and the end face of the pouring gate residual material with the part can be cut off together, so that the overall appearance quality of a punched product is ensured to be high, the surface smoothness of the product is high, and the bacteria hiding space is reduced under the condition that no additional process is added.

Further, in the injection mold, the mold cavity comprises a first mold cavity, a second mold cavity and a third mold cavity, and the first mold cavity, the second mold cavity and the third mold cavity are communicated to form a transverse Y shape. The slide block is provided with an inlaid part. When the mold is closed, the insert part extends into the space between the upper mold core and the lower mold core, the upper side of the insert part is abutted against the upper mold core, the lower side of the insert part is abutted against the lower mold core, the upper mold core is abutted against the lower mold core to form a first mold cavity, the upper side of the insert part and the upper mold core form a second mold cavity, and the lower side of the insert part and the lower mold core form a third mold cavity. When the mold is closed, the insert part stretches into a first mold cavity, a second mold cavity and a third mold cavity which are mutually connected, and the molten material is injected into the second mold cavity and the third mold cavity through the first mold cavity, so that the pressure balance of the second mold cavity and the third mold cavity can be ensured, and the product quality is ensured.

Further, in the injection mold, an upper cavity is formed on one side of the upper mold core, which is close to the lower mold core, and a lower cavity is formed on one side of the lower mold core, which is close to the upper mold core. The upper side of the embedded part is provided with an upper groove, the lower side of the embedded part is provided with a lower groove, and the upper groove and the lower groove are communicated with one side of the embedded part, which is far away from the inclined guide post. When the mold is closed, one side, away from the upper groove, of the upper cavity and one side, away from the lower groove, of the lower cavity form a first mold cavity, one side, close to the upper groove, of the upper cavity forms a second mold cavity, and one side, close to the lower groove, of the lower cavity forms a third mold cavity. During the compound die, insert portion embedding goes up between mould benevolence and the lower mould benevolence, forms horizontal Y die cavity respectively along insert portion upside down side, and the runner sets up in die cavity one side terminal surface of keeping away from the insert portion, can make plastics melt get into the die cavity fast, is favorable to filling fully locating second die cavity, the third die cavity of upper and lower side simultaneously, and the runner is got rid of through die-cut easily after the die separation, and the incision becomes the product terminal surface, does not influence work piece appearance quality, improves work piece surface finish.

Further, in the injection mold, 2 or more upper bosses are arranged along the upper cavity, inclined planes are arranged on two sides of the upper boss, and the upper bosses are arranged along the long sides of the upper cavity. The lower die cavity is provided with 2 or more upper and lower bosses, inclined planes are arranged on two sides of the lower boss, and the lower bosses are arranged along the long side of the lower die cavity. The upper boss and the lower boss are correspondingly arranged. When the die is assembled, the upper boss is abutted with the lower boss. The molten material is filled around the upper boss and the lower boss, holes are formed in the product, and the upper boss and the lower boss are sequentially separated during mold separation, so that mold separation force is reduced, and damage to the product caused by mold separation is avoided. The bottom surface of the upper groove is provided with four upper strip grooves which are arranged in parallel. The bottom of the lower groove is provided with two lower long grooves which are arranged along the long sides of the lower groove.

Further, in the injection mold, the upper groove and the lower groove are respectively provided with two grooves, the upper groove and the lower groove are respectively parallel to the sliding direction of the sliding block, the upper groove is arranged on the upper side of the insert, and the lower groove is arranged on the lower side of the insert. The upper cavity and the upper groove are correspondingly arranged, and the lower cavity and the lower groove are correspondingly arranged. By the arrangement, the two workpieces can be simultaneously molded by one slide block, and the production efficiency is improved. The sliding blocks are symmetrically arranged on two sides of the lower die core. One slide block is provided with two mold cavities, two slide blocks are arranged, four mold cavities are arranged, a plurality of workpieces can be produced through one-step molding, the production efficiency is further improved, and the production cost is reduced.

Further, in the injection mold, the upper mold core is provided with the pouring gate, and the pouring gate is arranged between the two sliding blocks, so that molten materials enter the mold cavity from the center of the mold, filling integrity is ensured, shearing force applied to the molten materials in the flowing process is reduced, and the performance of a plastic part is improved.

Further, in the injection mold, one side, far away from the upper mold plate, of the lower mold plate is connected with the ejector pin mechanism, the ejector pin mechanism stretches into the mold cavity, and the ejector pin mechanism ejects an injection molded product out of the mold cavity, so that the product can automatically drop out.

Further, in the injection mold, one side, far away from the lower mold plate, of the upper mold plate is connected with a panel, and one side, far away from the lower mold plate, of the thimble mechanism is connected with a bottom plate.

Further, in the injection mold, the ejector pin mechanism comprises an ejector pin base plate, the ejector pin base plate is connected to one side of the bottom plate, close to the lower die plate, one side, away from the bottom plate, of the ejector pin base plate is connected with an ejector pin fixing plate, the ejector pin fixing plate is provided with an ejector pin in a penetrating mode, one end, away from the lower die plate, of the ejector pin is abutted with the ejector pin base plate, and one end, away from the ejector pin base plate, of the ejector pin extends into the mold cavity. The two sides of the thimble fixing plate are respectively provided with a die angle, the die corners are respectively connected with the bottom plate. The thimble backing plate promotes the thimble to remove along the mould angle, ensures thimble stability, avoids the thimble to rock the damage to the product.

Further, in the injection mold, the upper mold plate is connected with a stop block, the stop block is close to the slide block, one side of the stop block close to the slide block is an inclined surface, and one side of the slide block close to the stop block is an inclined surface corresponding to the stop block. When the die is assembled, the stop block extrudes the slide block to ensure that the slide block moves to a preset position, so that the slide block is prevented from being in place and product defects are generated, and in the injection molding process, the stop block can prevent the slide block from moving due to extrusion of plastic melt, so that the product quality is ensured.

The injection mold has the advantages that a plurality of mold cavities are arranged, so that a plurality of workpieces can be produced by one-step molding, the production efficiency is improved, and the production cost is reduced. During injection molding, the embedded part is embedded between the upper die core and the lower die core, a transverse Y-shaped die cavity is formed along the upper side and the lower side of the embedded part, and the pouring gate is arranged on the end face of one side of the die cavity away from the embedded part, so that plastic molten material can quickly enter the die cavity, the second die cavity and the third die cavity which are fully arranged on the upper side and the lower side are facilitated to be filled simultaneously, the filling pressure balance of the second die cavity and the third die cavity is ensured, and the product quality is ensured. The pouring gate is arranged on the end face, the pouring gate residue is cut off by combining with the subsequent punching process, the end face of the pouring gate residue connecting belt part can be cut off together, the overall appearance quality of the punched product is ensured to be high under the condition that no additional process is added, the surface smoothness of the product is high, and the bacteria hiding space is reduced.

Drawings

FIG. 1 is a front view of an injection mold of the present utility model;

FIG. 2 is a top view of an injection mold of the present utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is an enlarged view of a portion of FIG. 3;

FIG. 6 is a bottom view of the upper mold insert;

FIG. 7 is a top view of the lower mold insert;

FIG. 8 is a schematic diagram of the slider structure;

FIG. 9 is a top view of the slider;

fig. 10 is a bottom view of the slider.

In the drawing, 1, a panel, 2, an upper die plate, 21, an upper die core, 211, an upper die cavity, 2111, an upper boss, 22, an inclined guide post, 23, a pouring opening, 24, a stop block, 3, a lower die plate, 31, a lower die core, 311, a lower die cavity, 3111 a lower boss, 32, a slide block, 321, an insert part, 3211, an upper groove, 3212, a lower groove, 3213, an upper long groove, 3214, a lower long groove, 4, a thimble mechanism, 41, a thimble backing plate, 42, a thimble fixing plate, 43, a thimble, 44, a die angle, 5, a bottom plate, 100, a die cavity, 101, a first die cavity, 102, a second die cavity, 103 and a third die cavity.

Detailed Description

Example 1

An injection mold as shown in fig. 1-4 comprises an upper mold plate 2 and a lower mold plate 3, wherein the upper mold plate 2 and the lower mold plate 3 are sequentially arranged, one side, close to the lower mold plate 3, of the upper mold plate 2 is connected with an upper mold core 21, and one side, close to the upper mold plate 2, of the lower mold plate 3 is connected with a lower mold core 31. The lower template 3 is connected with a sliding block 32 in a sliding way, and the upper template 2 is connected with an inclined guide post 22. When the mold is closed, the inclined guide post 22 stretches into a through hole formed in the sliding block 32, the upper die core 21 is abutted with the lower die core 31, one side of the sliding block 32 is abutted with the upper die core 21 and the lower die core 31, and the upper die core 21, the lower die core 31 and the sliding block 32 form a die cavity 100. The mold cavity 100 is in a transverse Y shape, the forked parts of the mold cavity 100 are respectively arranged on the upper side and the lower side of the sliding block 32, and the pouring gate is arranged on the end face of the mold cavity 100, which is far away from the sliding block 32. One side of the lower die plate 3, which is far away from the upper die plate 2, is connected with a thimble mechanism 4, the thimble mechanism 4 stretches into the die cavity 100, and the thimble mechanism 4 ejects the injection molded product out of the die cavity 100. One side of the upper template 2 far away from the lower template 3 is connected with a panel 1, and one side of the thimble mechanism 4 far away from the lower template 3 is connected with a bottom plate 5. The thimble mechanism 4 comprises a thimble base plate 41, the thimble base plate 41 is connected to one side of the bottom plate 5, which is close to the lower die plate 3, one side of the thimble base plate 41, which is far away from the bottom plate 5, is connected with a thimble fixing plate 42, a thimble 43 is arranged on the thimble fixing plate 42 in a penetrating manner, one end of the thimble 43, which is far away from the lower die plate 3, is abutted with the thimble base plate 41, and one end of the thimble 43, which is far away from the thimble base plate 41, extends into the die cavity 100. The two sides of the thimble fixing plate 42 are respectively provided with a die angle, and the die angles are respectively connected with the bottom plate 5. The thimble fixing plate 42 is connected with a guide pillar, the guide pillar is slidably connected to the lower die plate 3, the guide pillar is sleeved with a spring, the upper end of the spring is abutted against the lower die plate 3, and the lower end of the spring is abutted against the thimble fixing plate 42. The upper template 2 is connected with a stop block 24, the stop block 24 is arranged close to the sliding block 32, one side of the stop block 24 close to the sliding block 32 is an inclined plane, and one side of the sliding block 32 close to the stop block 24 is an inclined plane corresponding to the stop block 24.

When the mold is used for production, the upper mold plate 2 and the lower mold plate 3 are assembled, the inclined guide post 22 pushes the slide block 32 to move, one side of the slide block 32 is abutted against the upper mold core 21 and the lower mold core 31 to form the mold cavity 100, the stop block 24 extrudes the slide block 32 to ensure that the slide block 32 moves to a preset position, molten materials are injected into the mold cavity 100, the upper mold plate 2 and the lower mold plate 3 are separated after the molten materials are cooled, the stop block 24 is moved out, the inclined guide post 22 pushes the slide block 32 to withdraw, the ejector pin mechanism 4 is started, the ejector pin base plate 41 pushes the ejector pins 43, the ejector pins 43 push products out of the mold cavity, and springs sleeved on the guide posts reset the ejector pins 43 to finish demolding. And (3) punching and removing gate scraps of the demoulded product through a subsequent punching process, and forming a product end face by a section after the gate scraps on the end face are removed.

As shown in fig. 5, the mold cavity 100 includes a first mold cavity 101, a second mold cavity 102, and a third mold cavity 103, and the first mold cavity 101, the second mold cavity 102, and the third mold cavity 103 are connected in a transverse Y-shape. The slider 32 is provided with an insert 321. When the mold is closed, the insert 321 extends between the upper die core 21 and the lower die core 31, the upper side of the insert 321 is abutted against the upper die core 21, the lower side of the insert 321 is abutted against the lower die core 31, the upper die core 21 is abutted against the lower die core 31 to form a first die cavity 101, the upper side of the insert 321 and the upper die core 21 form a second die cavity 102, and the lower side of the insert 321 and the lower die core 31 form a third die cavity 103.

As shown in fig. 6-10, an upper cavity 211 is formed on one side of the upper cavity 21 adjacent to the lower cavity 31, and a lower cavity 311 is formed on one side of the lower cavity 31 adjacent to the upper cavity 21. An upper groove 3211 is formed in the upper side of the insert 321, a lower groove 3212 is formed in the lower side of the insert 321, and the upper groove 3211 and the lower groove 3212 are communicated on the side, away from the inclined guide post 22, of the insert 321. When the mold is closed, the side of the upper cavity 211 away from the upper groove 3211 and the side of the lower cavity 311 away from the lower groove 3212 form the first cavity 101, the side of the upper cavity 211 close to the upper groove 3211 and the upper groove 3211 form the second cavity 102, and the side of the lower cavity 311 close to the lower groove 3212 and the lower groove 3212 form the third cavity 103. 2 or more upper bosses 2111 are provided along the upper cavity 211, inclined surfaces are provided on both sides of the upper bosses 2111, and the upper bosses 2111 are arranged along the long side of the upper cavity 211. The lower cavity 311 is provided with 2 or more upper and lower bosses 3111, both sides of the lower boss 3111 are inclined surfaces, and the lower bosses 3111 are arranged along the long side of the lower cavity 311. The upper boss 2111 and the lower boss 3111 are provided correspondingly. At the time of mold closing, the upper boss 2111 and the lower boss 3111 abut. The bottom surface of the upper groove 3211 is provided with upper long grooves 3213, the upper long grooves 3213 are provided with four, and the upper long grooves 3213 are arranged in parallel. The bottom of the lower groove 3212 is provided with two lower long grooves 3214, and the lower long grooves 3214 are arranged along the long side of the lower groove 3212.

The product is a Y-shaped workpiece, when in injection molding, the insert 321 is embedded between the upper die core 21 and the lower die core 31, the transverse Y-shaped die cavities 100 are respectively formed along the upper side and the lower side of the insert 321, and the pouring gate is arranged on the end face of the die cavity 100 at one side far away from the insert 321. The upper groove 3211 and the lower groove 3212 are respectively provided with two grooves, the upper groove 3211 is parallel to the sliding direction of the sliding block 32, the upper groove 3211 is arranged on the upper side of the insert 321, the lower groove 3212 is parallel to the sliding direction of the sliding block 32, and the lower groove 3212 is arranged on the lower side of the insert 321. The upper cavity 211 and the upper groove 3211 are provided correspondingly, and the lower cavity 311 and the lower groove 3212 are provided correspondingly. The number of the sliding blocks 32 is two, and the sliding blocks 32 are symmetrically arranged on two sides of the lower die core 31. The upper die core 21 is provided with a pouring opening 23, and the pouring opening 23 is arranged between the two sliding blocks 32, so that molten materials enter the die cavity 100 from the center of the die, the filling integrity is ensured, and the performance of a plastic part is improved.

The above embodiments are illustrative, and are intended to illustrate the technical concept and features of the present utility model so that those skilled in the art can understand the content of the present utility model and implement it accordingly, and not to limit the scope of the present utility model accordingly. All equivalent changes or modifications made according to the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. The injection mold is characterized by comprising an upper mold plate (2) and a lower mold plate (3), wherein the upper mold plate (2) and the lower mold plate (3) are sequentially arranged, one side, close to the lower mold plate (3), of the upper mold plate (2) is connected with an upper mold core (21), one side, close to the upper mold plate (2), of the lower mold plate (3) is connected with a lower mold core (31), the lower mold plate (3) is slidably connected with a sliding block (32), the upper mold plate (2) is connected with an inclined guide pillar (22), when the mold is closed, the inclined guide pillar (22) stretches into a through hole formed in the sliding block (32), the upper mold core (21) is abutted with the lower mold core (31), one side, close to the upper mold core (21) and the lower mold core (31), of the upper mold core (21), the lower mold core (31) and the sliding block (32) form a mold cavity (100), the mold cavity (100) is arranged in a transverse Y shape, and the mold cavity (100) is forked and is respectively arranged on the upper side and the lower side of the sliding block (32), and the pouring gate is arranged on one side far away from the mold cavity (100).

2. The injection mold according to claim 1, wherein the mold cavity (100) comprises a first mold cavity (101), a second mold cavity (102) and a third mold cavity (103), the first mold cavity (101), the second mold cavity (102) and the third mold cavity (103) are communicated in a transverse Y shape, the slide block (32) is provided with an insert portion (321), when the slide block is assembled, the insert portion (321) stretches into a space between the upper mold core (21) and the lower mold core (31), the upper side of the insert portion (321) is abutted against the upper mold core (21), the lower side of the insert portion (321) is abutted against the lower mold core (31), the upper mold core (21) is abutted against the lower mold core (31) to form the first mold cavity (101), the upper side of the insert portion (321) is abutted against the upper mold core (21) to form the second mold cavity (102), and the lower side of the insert portion (321) is abutted against the lower mold core (31) to form the third mold cavity (103).

3. The injection mold of claim 2, wherein an upper cavity (211) is formed in one side, close to the lower cavity (31), of the upper cavity (21), a lower cavity (311) is formed in one side, close to the upper cavity (21), of the lower cavity (31), an upper groove (3211) is formed in the upper side of the insert (321), a lower groove (3212) is formed in the lower side of the insert (321), the upper groove (3211) and the lower groove (3212) are communicated on one side, far from the inclined guide post (22), of the insert (321), when the mold is closed, a first cavity (101) is formed in one side, far from the upper groove (3211), of the upper cavity (211) and a second cavity (102) is formed in one side, close to the upper groove (3211), of the upper cavity (211) and a third cavity (103) is formed in one side, close to the lower groove (3212).

4. The injection mold according to claim 3, wherein 2 or more upper bosses (2111) are provided along the upper cavity (211), wherein two sides of the upper bosses (2111) are inclined planes, the upper bosses (2111) are arranged along the long sides of the upper cavity (211), 2 or more lower bosses (3111) are provided along the lower cavity (311), two sides of the lower bosses (3111) are inclined planes, the lower bosses (3111) are arranged along the long sides of the lower cavity (311), the upper bosses (2111) and the lower bosses (3111) are correspondingly arranged, the upper bosses (2111) and the lower bosses (3111) are abutted when the mold is closed, four upper long grooves (3213) are provided on the bottom surface of the upper groove (3211), the upper long grooves (3213) are arranged in parallel to each other, two lower long grooves (3214) are provided on the bottom of the lower groove (3212), and the two long grooves (3214) are arranged along the long sides of the lower groove (3212).

5. The injection mold of claim 4, wherein the upper groove (3211) and the lower groove (3212) are respectively provided with two grooves, the upper groove (3211) and the lower groove (3212) are respectively arranged parallel to the sliding direction of the sliding block (32), the upper cavity (211) and the upper groove (3211) are correspondingly arranged, the lower cavity (311) and the lower groove (3212) are correspondingly arranged, the sliding block (32) is provided with two grooves, the sliding blocks (32) are symmetrically arranged on two sides of the lower mold core (31), the mold cavities (100) are symmetrically provided with four grooves, and the mold cavities (100) are communicated through flow passages.

6. The injection mold according to claim 5, wherein the upper mold core (21) is provided with a pouring opening (23), the pouring opening (23) is arranged between two sliding blocks (32), and the pouring opening (23) is communicated with the mold cavity (100) through a runner.

7. The injection mold of claim 1, wherein a thimble mechanism (4) is connected to one side of the lower mold plate (3) away from the upper mold plate (2), the thimble mechanism (4) extends into the mold cavity (100), and the thimble mechanism (4) ejects the injection molded product from the mold cavity (100).

8. The injection mold of claim 7, wherein a panel (1) is connected to a side of the upper mold plate (2) away from the lower mold plate (3), and a bottom plate (5) is connected to a side of the ejector pin mechanism (4) away from the lower mold plate (3).

9. The injection mold of claim 7, wherein the ejector pin mechanism (4) comprises an ejector pin base plate (41), the ejector pin base plate (41) is connected to one side, close to the lower mold plate (3), of the bottom plate (5), an ejector pin fixing plate (42) is connected to one side, far away from the bottom plate (5), of the ejector pin base plate (41), an ejector pin (43) is arranged in a penetrating mode, one end, far away from the lower mold plate (3), of the ejector pin (43) is abutted against the ejector pin base plate (41), one end, far away from the ejector pin base plate (41), of the ejector pin (43) stretches into the mold cavity (100), mold angles are respectively arranged on two sides of the ejector pin fixing plate (42), and the mold angles are respectively connected with the bottom plate (5).

10. The injection mold according to claim 1, wherein the upper mold plate (2) is connected with a stopper (24), the stopper (24) is arranged close to the slide block (32), one side of the stopper (24) close to the slide block (32) is an inclined surface, one side of the slide block (32) close to the stopper (24) is an inclined surface corresponding to the stopper (24), and the stopper (24) presses the slide block (32) during mold closing.