CN211492630U - Injection mold - Google Patents

Abstract

The utility model relates to a technical field of moulding plastics many times discloses an injection mold, including activity die cavity piece, activity slider, movable mould board and fixed die plate. The movable cavity block is provided with an injection molding groove; the movable sliding block is arranged in the injection molding groove in a sliding manner; the movable die plate is provided with an accommodating groove, the movable cavity block is slidably arranged in the accommodating groove, the movable die plate is provided with a first driving assembly and a second driving assembly, the first driving assembly can drive the movable cavity block to move in the accommodating groove, and the second driving assembly can drive the movable sliding block to move in the injection molding groove; the fixed die plate is arranged above the movable die plate and can move up and down relative to the movable die plate, the upper surfaces of the movable cavity block and the movable sliding block can be meshed with the lower surface of the fixed die plate, so that the movable cavity block and the movable sliding block are locked relative to the fixed die plate, and the movable cavity block, the movable sliding block and the fixed die plate are enclosed to form an injection molding cavity. Need not the backing sheet, use first drive assembly and second drive assembly drive, improve production efficiency.

Description

Injection mold

Technical Field

The utility model relates to a technical field that moulds plastics especially relates to an injection mold.

Background

When a solid workpiece with a large volume is injection molded, the internal molten raw material cannot be cooled for a long time due to the large volume of the workpiece and poor thermal conductivity of the plastic. In order to solve the problem, continuous injection molding is adopted for multiple times in a layered mode, after the injection molding of the upper layer, cooling is carried out, after the cooling is carried out to a certain temperature, the injection molding of the lower layer is carried out.

As shown in fig. 1, the existing injection mold includes a fixed mold plate 10, a movable mold plate 20 and a movable block 30, the movable block 30 is slidably disposed in the movable mold plate 20, the movable block 30 can slide up and down along the movable mold plate 20, a plurality of support sheets 40 are padded below the movable block, one support sheet 40 is taken away after each injection molding layer, the movable block 30 is lowered by a certain height to enlarge an injection molding cavity, and then the next injection molding layer is performed until the injection molding of the whole workpiece is completed.

However, the method has the disadvantages of high labor intensity, low production efficiency, large structural size of the die, more parts and unstable structure.

Therefore, an injection mold is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection mold need not to set up the backing sheet in injection mold's bottom, can reduce intensity of labour, improves production efficiency.

To achieve the purpose, the utility model adopts the following technical proposal:

provided is an injection mold including:

the movable cavity block is provided with an injection molding groove;

the movable sliding block is arranged in the injection molding groove in a sliding manner;

the movable cavity block is arranged in the accommodating groove in a sliding manner, a first driving assembly and a second driving assembly are arranged on the movable template, the first driving assembly can drive the movable cavity block to move in the accommodating groove, and the second driving assembly can drive the movable sliding block to move in the injection groove;

the fixed die plate is arranged above the movable die plate and can move up and down relative to the movable die plate, the movable cavity block and the upper surface of the movable sliding block can be meshed with the lower surface of the fixed die plate, so that the movable cavity block and the movable sliding block are locked relative to the fixed die plate, and the movable cavity block, the movable sliding block and the fixed die plate are enclosed to form an injection molding cavity.

Preferably, the movable cavity block is in the tank bottom in the groove of moulding plastics is provided with logical groove, it is provided with the kicking block to lead to the inslot, the upper surface of kicking block with the tank bottom parallel and level in the groove of moulding plastics sets up, the bottom part protrusion of kicking block in the movable cavity block sets up.

Preferably, the fixed die plate is provided with an accommodating groove, and a fixed die insert is arranged in the accommodating groove.

Preferably, the movable die plate further comprises a bottom support assembly, wherein the bottom support assembly comprises a bottom plate and two support blocks, the two support blocks are arranged on the bottom plate at intervals and side by side, and the movable die plate is arranged on the two support blocks.

Preferably, the bottom sprag subassembly includes thimble board and slide rail, the thimble board set up in on the bottom plate, the slide rail set up in on the thimble board, the bottom of kicking block be provided with slide rail matched with spout, movable die cavity piece can drive the kicking block is followed the slide rail slides.

Preferably, the injection molding device further comprises an upper supporting assembly, which comprises an upper fixing plate and a top plate, wherein the upper fixing plate is arranged above the fixed mold plate, the top plate is arranged above the upper fixing plate, and the upper fixing plate and the fixed mold plate are provided with injection molding nozzles capable of being inserted into the fixed mold inserts.

Preferably, the bottom support assembly further includes a guide rod vertically disposed on the support block, the guide rod passes through the movable mold plate and then is exposed to the movable mold plate, guide holes are disposed on the fixed mold plate and the upper fixing plate, a guide sleeve is disposed in the guide hole, and the guide sleeve is slidably sleeved on a portion of the guide rod exposed to the movable mold plate.

Preferably, the movable cavity block is provided with first meshing teeth, and the fixed die plate is provided with second meshing teeth matched with the first meshing teeth;

and a third meshing tooth is arranged on the movable sliding block, and a fourth meshing tooth matched with the third meshing tooth is arranged on the fixed die plate.

Preferably, the cross sections of the first meshing tooth and the second meshing tooth are both trapezoidal steps, rectangular steps, triangular steps, semicircular steps or circular steps;

the cross sections of the third meshing teeth and the fourth meshing teeth are trapezoidal steps, rectangular steps, triangular steps, semicircular steps or circular steps.

Preferably, a fifth meshing tooth is arranged on the lower surface of the movable cavity block, a sixth meshing tooth matched with the fifth meshing tooth is arranged on the movable mold plate, and the movable cavity block can be locked relative to the movable mold plate through the matching of the fifth meshing tooth and the sixth meshing tooth.

The utility model has the advantages that: the upper surfaces of the movable cavity block and the movable sliding block can be meshed with the lower surface of the fixed mold plate so as to lock the movable cavity block and the movable sliding block relative to the fixed mold plate, and when the injection molding is carried out, the first driving assembly and the second driving assembly are in a relatively static state and are not influenced by injection molding pressure.

This injection mold need not to set up the backing sheet in injection mold's bottom, need not to take out repeatedly and take the backing sheet, uses first drive assembly and second drive assembly to drive, can reduce intensity of labour, improves production efficiency, operates safe and reliable more moreover. The automatic injection molding production is realized, the structure of the injection mold is more stable, and the service life is prolonged. And a plurality of layers of supporting sheets are not needed, so that the size of the injection mold is reduced, the number of parts of the injection mold is reduced, and the production cost is reduced.

Drawings

FIG. 1 is a schematic view of a prior art injection mold;

FIG. 2 is a schematic structural view of an injection mold provided by the present invention;

fig. 3 is a schematic partial structural diagram of an injection mold according to the present invention;

fig. 4 is a schematic view of a partial structure of an injection mold according to the present invention;

fig. 5 is a cross-sectional view of an injection mold provided by the present invention;

FIG. 6 is an enlarged partial view at A of FIG. 5;

fig. 7 is a schematic structural view of the first engaging tooth and the second engaging tooth provided by the present invention (the second engaging tooth is a triangular step);

fig. 8 is a schematic structural view of the first engaging tooth and the second engaging tooth provided by the present invention (the second engaging tooth is a semicircular step);

fig. 9 is a schematic structural view of the first engaging tooth and the second engaging tooth of the present invention (the second engaging tooth is a circular step).

In the figure: 10. fixing a template; 20, moving the template; 30. a movable block; 40. a support sheet;

100. a workpiece;

1. a movable cavity block; 11. a top block;

2. a movable slide block;

3. moving the template; 31. a first drive assembly; 311. a first drive motor; 312. a first lead screw; 313. a first lead screw nut; 32. a second drive assembly; 321. a second drive motor; 322. a second lead screw; 33. a mounting frame; 34. a guide rail;

4. fixing a template; 41. a fixed die insert; 42. a guide sleeve;

51. a base plate; 52. an ejector plate; 53. a slide rail; 54. a support block; 55. a guide bar;

61. an upper fixing plate; 62. a top plate; 63. injecting a plastic barrel; 64. and (4) injection molding the nozzle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 2-5, the present embodiment discloses an injection mold, which includes a movable cavity block 1, a movable slide block 2, a movable mold plate 3 and a fixed mold plate 4.

Wherein, the movable cavity block 1 is provided with an injection molding groove, and the movable sliding block 2 is arranged in the injection molding groove in a sliding manner. The movable mould plate 3 is provided with the holding tank, and movable die cavity piece 1 sets up in the holding tank with sliding, is provided with first drive assembly 31 and second drive assembly 32 on the movable mould plate 3, and first drive assembly 31 can drive movable die cavity piece 1 and remove in the holding tank, and second drive assembly 32 can drive movable slider 2 and remove in the inslot of moulding plastics.

Specifically, the guide rails 34 are arranged on the side walls of the two sides of the accommodating groove, the guide grooves are arranged on the two sides of the movable cavity block 1, the movable cavity block 1 can move left and right along the guide rails 34, the guide rails 34 and the guide grooves are arranged, so that the movement track of the movable cavity block 1 is stable, and the shape and the size of the formed workpiece 100 meet the design requirements.

Preferably, in this embodiment, the mounting frames 33 are mounted at both ends of the movable mold plate 3, the first driving assembly 31 includes a first driving motor 311, a first lead screw 312 and a first lead screw nut 313, the first driving motor 311 is mounted on the mounting frame 33 on the left side of the movable mold plate 3, the first lead screw nut 313 is mounted on the movable cavity block 1, one end of the first lead screw 312 is connected to the first driving motor 311 through a coupling, and the first lead screw nut 313 is screwed on the first lead screw 312. The first driving motor 311 drives the first lead screw 312 to rotate, and can drive the movable cavity block 1 to move in the accommodating groove. The second driving assembly 32 comprises a second driving motor 321, a second lead screw 322 and a second lead screw nut, the second driving motor 321 is installed on the installation frame 33 on the right side of the movable mould plate 3, the second lead screw nut is installed on the movable sliding block 2, one end of the second lead screw 322 is connected to the second driving motor 321 through a coupling, and the second lead screw nut is screwed on the second lead screw 322. The second driving motor 321 drives the second lead screw 322 to rotate, and can drive the movable sliding block 2 to move in the injection molding groove.

In other embodiments, the first driving assembly 31 is an electric push rod, an air cylinder, an oil cylinder or a rack and pinion mechanism, a worm and gear mechanism, etc., and the second driving assembly 32 is an electric push rod, an air cylinder, an oil cylinder or a rack and pinion mechanism, a worm and gear mechanism, etc., as long as the first driving assembly can drive the movable cavity block 1 and the movable sliding block 2 to move linearly.

The fixed platen 4 is provided above the movable platen 3, and is movable up and down with respect to the movable platen 3. The upper surfaces of the movable cavity block 1 and the movable sliding block 2 can be meshed with the lower surface of the fixed mold plate 4, so that the movable cavity block 1 and the movable sliding block 2 are locked relative to the fixed mold plate 4, and the movable cavity block 1, the movable sliding block 2 and the fixed mold plate 4 are enclosed to form an injection molding cavity.

Optionally, the injection mold further comprises a bottom support assembly, the bottom support assembly comprises a bottom plate 51, two support blocks 54, an ejector plate 52, a slide rail 53 and a guide rod 55, the two support blocks 54 are arranged on the bottom plate 51 side by side and at intervals, the movable mold plate 3 is arranged on the support blocks 54, the ejector plate 52 is arranged on the bottom plate 51 and located between the two support blocks 54, and the slide rail 53 is arranged on the ejector plate 52.

The movable cavity block 1 is provided with a through groove at the bottom of the injection molding groove, a top block 11 is arranged in the through groove, the upper surface of the top block 11 is flush with the bottom of the injection molding groove, and the bottom end part of the top block 11 protrudes out of the movable cavity block 1. The bottom of kicking block 11 is provided with the spout with slide rail 53 matched with, when activity die cavity piece 1 removed in the holding tank, can drive kicking block 11 and slide along slide rail 53 to make kicking block 11 can not produce the interference to the removal of activity die cavity piece 1. A through hole is formed in the bottom plate 51, and external equipment passes through the through hole and acts on the ejector plate 52, so that the ejector plate 52 moves upwards to drive the ejector block 11 to move upwards, and the injection molded workpiece 100 is ejected out of an injection molding cavity to be demolded. The guide rod 55 is vertically disposed on the supporting block 54, and upwardly penetrates through the movable mold plate 3 to be exposed out of the movable mold plate 3. Each support block 54 is provided at both ends thereof with a guide bar 55. The guide rod 55 is exposed out of the movable mold plate 3 after passing through the movable mold plate 3, guide holes are formed in the fixed mold plate 4 and the upper fixing plate 61, guide sleeves 42 are arranged in the guide holes, and the guide sleeves 42 are slidably sleeved on the portions, exposed out of the movable mold plate 3, of the guide rod 55. The ejector plate 52 is further provided with a stopper rod which abuts against the lower surface of the fixed die plate after passing through the movable die plate 3.

The fixed die plate 4 is provided with a containing groove, the fixed die insert 41 is arranged in the containing groove, the fixed die insert 41 is provided with the injection molding nozzles 64, and the injection mold in the embodiment only injects one layer of plate-shaped objects at a time, so that the fixed die insert 41 is provided with the three injection molding nozzles 64, and the three injection molding nozzles 64 are arranged side by side.

Optionally, the injection mold further comprises an upper supporting assembly and a third driving assembly (not shown in the figure), the upper supporting assembly comprises an upper fixing plate 61, a top plate 62, an injection barrel 63 and an injection nozzle 64, the upper fixing plate 61 is disposed above the fixed mold plate 4, the top plate 62 is disposed above the upper fixing plate 61, and the injection nozzle 64 capable of being inserted into the fixed mold insert 41 is disposed on the upper fixing plate 61 and the fixed mold plate 4. The injection molding barrel 63 is disposed in the upper fixing plate 61, and the injection molding barrel 63 provides the injection nozzle 64 with molten plastic for injection molding. The top of injection molding bucket 63 is provided with the liquid inlet, and the liquid inlet exposes in roof 62 and sets up, and the bottom of injection molding bucket 63 is provided with three injection molding pipe, and three injection molding pipe is connected with three mouth 64 of moulding plastics respectively, provides the molten plastics to three mouth 64 of moulding plastics through injection molding bucket 63.

The output end of the third driving assembly is connected to the upper supporting assembly or the fixed die plate, the third driving assembly can drive the fixed die plate to move up and down along the guide rod 55, and the third driving assembly in this embodiment is an air cylinder, an electric cylinder or an oil cylinder. The third driving assembly drives the fixed mold plate 4 to move upwards relative to the movable mold plate 3, so that the fixed mold plate 4 can be unlocked from locking the movable cavity block 1 and the movable slide block 2. The stationary platen 4 and the upper support assembly can also be moved away from the movable platen 3 at the time of demolding to open the mold.

As shown in fig. 6, the movable cavity block 1 is provided with first engaging teeth, the fixed mold plate 4 is provided with second engaging teeth matched with the first engaging teeth, and the first engaging teeth and the second engaging teeth are matched to lock the movable cavity block 1 relative to the fixed mold plate 4 in the injection molding process, so that disqualification of the injection molded workpiece 100 due to movement of the movable cavity block 1 cannot be avoided; when the movable cavity block 1 needs to be moved, the fixed mold plate 4 can be unlocked after moving upward relative to the movable mold plate 3. The movable sliding block 2 is provided with third meshing teeth, the fixed mold plate 4 is provided with fourth meshing teeth matched with the third meshing teeth, and the third meshing teeth and the fourth meshing teeth are matched to lock the movable mold cavity block 1 relative to the fixed mold plate 4 in the injection molding process, so that unqualified injection molded workpieces 100 due to the movement of the movable sliding block 2 cannot be avoided; when the movable slide block 2 needs to move, the fixed die plate 4 can be unlocked after moving upwards relative to the movable die plate 3.

The cross sections of the first meshing tooth and the second meshing tooth are respectively a trapezoidal step, a rectangular step, a triangular step, a semicircular step or a circular step; the cross sections of the third meshing tooth and the fourth meshing tooth are respectively a trapezoidal step, a rectangular step, a triangular step, a semicircular step or a circular step.

In this embodiment, as shown in fig. 6, the cross section of each second engaging tooth is a trapezoidal step, a trapezoidal groove is formed in each trapezoidal step of two adjacent second engaging teeth, each first engaging tooth is a trapezoidal step matched with the trapezoidal groove, and the distance between two adjacent first engaging teeth is d. The cross section of each fourth meshing tooth is also a trapezoidal step, trapezoidal grooves are formed in the trapezoidal steps of every two adjacent fourth meshing teeth, the third meshing teeth are trapezoidal steps matched with the trapezoidal grooves, the distance between every two adjacent third meshing teeth is also d, and in other embodiments, the distance can be 0.5d, 0.25d or 0.125d and the like. In other embodiments, of course, the fourth engaging tooth may also be a rectangular step, a triangular step, a semicircular step, a circular step, or the like.

In other embodiments, the cross section of each second meshing tooth is a rectangular step, the trapezoidal steps of two adjacent second meshing teeth are provided with a groove, each first meshing tooth is a rectangular step matched with the groove, and the distance between two adjacent first meshing teeth is d. The cross section of each fourth meshing tooth is also a rectangular step, the trapezoidal steps of every two adjacent fourth meshing teeth form a groove, each third meshing tooth is a rectangular step matched with the groove, and the distance between every two adjacent third meshing teeth is d.

Or, as shown in fig. 7, the cross section of each second meshing tooth is a triangular step, the trapezoidal steps of two adjacent second meshing teeth form a groove, each first meshing tooth is a triangular step matched with the groove, and the distance between two adjacent first meshing teeth is d. The cross section of each fourth meshing tooth is also a triangular step, the trapezoidal steps of every two adjacent fourth meshing teeth form a groove, each third meshing tooth is a triangular step matched with the groove, and the distance between every two adjacent third meshing teeth is d.

Or, as shown in fig. 8, the cross section of each second meshing tooth is a circular step, the trapezoidal steps of two adjacent second meshing teeth form a groove, each first meshing tooth is a circular step matched with the groove, the distance between every two adjacent first meshing teeth is d, the cross section of each fourth meshing tooth is also a circular step, the trapezoidal steps of two adjacent fourth meshing teeth form a groove, each third meshing tooth is a circular step matched with the groove, and the distance between every two adjacent third meshing teeth is also d.

Or, as shown in fig. 9, the cross section of the second engaging teeth is a semicircular step, the trapezoidal steps of two adjacent second engaging teeth form a groove, the first engaging teeth are special-shaped steps matched with the groove, the distance between two adjacent first engaging teeth is d, the cross section of the fourth engaging teeth is also a semicircular step, the trapezoidal steps of two adjacent fourth engaging teeth form a groove, the third engaging teeth are special-shaped steps matched with the groove, and the distance between two adjacent third engaging teeth is also d.

The movable mould plate 3 can move up and down relative to the movable mould cavity block 1 and the movable sliding block 2, fifth meshing teeth are arranged on the lower surface of the movable mould cavity block 1, sixth meshing teeth matched with the fifth meshing teeth are arranged on the movable mould plate 3, the fifth meshing teeth and the sixth meshing teeth are matched to lock the movable mould cavity block 1 relative to the movable mould plate 3, and the movable mould cavity block 1 is prevented from moving relative to the movable mould plate 3, so that the injection-molded workpiece 100 is not qualified. In this embodiment, the fifth meshing teeth are trapezoidal steps, and the distance between two adjacent fifth meshing teeth is d. In other embodiments, the fifth engaging tooth may also be a rectangular step, a triangular step, a semicircular step, a circular step, or the like.

After one-time injection filling is finished, when a mold is opened, the workpiece 100 which is subjected to the last injection molding is still in an injection molding cavity, the first driving component 31 drives the movable cavity block 1 to move leftwards by a preset distance D (D is an integral multiple of D), and meanwhile, under the action of the second driving component 32, the movable sliding block 2 is driven to push the workpiece 100 to move leftwards by the preset distance D; then the second driving assembly 32 drives the movable slide block 2 to move rightward by a preset distance D, so that the movable slide block 2 is reset, and the workpiece 100 which is injection-molded last time is left at the side close to the movable cavity block 1.

And then the mold is closed, the movable cavity block 1 and the movable mold plate 3 are locked with the fixed mold plate 4 at the moment, next injection molding is carried out, when next injection molding filling is carried out, the mold locking force borne by the movable cavity block 1 and the movable slide block 2 is far greater than the injection molding pressure borne by the movable cavity block 1 and the movable slide block 2, and the stability of the movable cavity block 1 and the movable slide block 2 can be ensured.

When the number of injection molding times reaches a limited number N, the total thickness H of the workpiece 100 is equal to N × D. Then the upper supporting component moves a certain distance relative to the direction of the fixed die plate 4 away from the movable die plate 3, and then the ejector block 11 is driven to move upwards to eject the workpiece 100.

Then the first driving assembly 31 and the second driving assembly 32 respectively drive the movable cavity block 1 and the movable slide block 2 to reset for preparing the next injection molding.

Because the movable cavity block 1 and the movable mold plate 3 are locked by the fifth engaging tooth and the sixth engaging tooth, when the movable cavity needs to move, the movable mold plate 3 needs to move downwards for a certain distance relative to the movable cavity block 1 to release the locking.

The upper surfaces of the movable cavity block 1 and the movable slide block 2 can be meshed with the lower surface of the fixed mold plate 4, so that the movable cavity block 1 and the movable slide block 2 are locked relative to the fixed mold plate 4, and the first driving assembly 31 and the second driving assembly 32 are in a relatively static state and are not influenced by injection molding pressure during injection molding.

This injection mold need not to set up the backing sheet in injection mold's bottom, uses first drive assembly 31 and second drive assembly 32 to drive, can reduce intensity of labour, improves production efficiency. The automatic injection molding production is realized, the structure of the injection mold is more stable, and the service life is prolonged. And a plurality of layers of supporting sheets are not needed, so that the size of the injection mold is reduced, the number of parts of the injection mold is reduced, and the production cost is reduced.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. An injection mold, comprising:

the movable cavity block (1) is provided with an injection molding groove;

the movable sliding block (2) is arranged in the injection molding groove in a sliding manner;

the movable mould plate (3) is provided with an accommodating groove, the movable mould cavity block (1) is arranged in the accommodating groove in a sliding mode, a first driving assembly (31) and a second driving assembly (32) are arranged on the movable mould plate (3), the first driving assembly (31) can drive the movable mould cavity block (1) to move in the accommodating groove, and the second driving assembly (32) can drive the movable sliding block (2) to move in the injection molding groove;

the fixed die plate (4) is arranged above the movable die plate (3) and can move up and down relative to the movable die plate (3), the movable die cavity block (1) and the upper surface of the movable sliding block (2) can be meshed with the lower surface of the fixed die plate (4) so as to enable the movable die cavity block (1) and the movable sliding block (2) to be locked relative to the fixed die plate (4), and the movable die cavity block (1), the movable sliding block (2) and the fixed die plate (4) are enclosed to form an injection molding cavity.

2. An injection mould according to claim 1, characterized in that the movable cavity block (1) is provided with a through groove at the bottom of the injection groove, a top block (11) is arranged in the through groove, the upper surface of the top block (11) is flush with the bottom of the injection groove, and the bottom end part of the top block (11) protrudes out of the movable cavity block (1).

3. An injection mould according to claim 2, characterized in that the stationary platen (4) is provided with a receiving groove in which a stationary mold insert (41) is provided.

4. An injection mould according to claim 3, further comprising a bottom support assembly comprising a base plate (51) and two support blocks (54), the two support blocks (54) being arranged side by side and spaced apart on the base plate (51), the movable platen (3) being arranged on the two support blocks (54).

5. An injection mould according to claim 4, characterized in that the bottom support assembly further comprises an ejector plate (52) and a slide rail (53), the ejector plate (52) is arranged on the bottom plate (51), the slide rail (53) is arranged on the ejector plate (52), a slide groove matched with the slide rail (53) is arranged at the bottom end of the ejector block (11), and the movable cavity block (1) can drive the ejector block (11) to slide along the slide rail (53).

6. An injection mold according to claim 4, further comprising an upper support assembly comprising an upper fixing plate (61) and a top plate (62), wherein the upper fixing plate (61) is disposed above the fixed mold plate (4), the top plate (62) is disposed above the upper fixing plate (61), and the upper fixing plate (61) and the fixed mold plate (4) are provided with injection nozzles (64) capable of being inserted into the fixed mold inserts (41).

7. The injection mold according to claim 6, wherein the bottom support assembly further comprises a guide rod (55), the guide rod (55) is vertically disposed on the support block (54), the guide rod (55) passes through the movable mold plate (3) and then is exposed out of the movable mold plate (3), the fixed mold plate (4) and the upper fixing plate (61) are provided with guide holes, guide sleeves (42) are disposed in the guide holes, and the guide sleeves (42) are slidably sleeved on the portions of the guide rod (55) exposed out of the movable mold plate (3).

8. An injection mould according to claim 1, characterized in that the movable cavity block (1) is provided with first meshing teeth, and the fixed mould plate (4) is provided with second meshing teeth matched with the first meshing teeth;

and a third meshing tooth is arranged on the movable sliding block (2), and a fourth meshing tooth matched with the third meshing tooth is arranged on the fixed die plate (4).

9. The injection mold of claim 8, wherein the cross-section of the first and second meshing teeth is a trapezoidal step, a rectangular step, a triangular step, a semi-circular step, or a circular step;

the cross sections of the third meshing teeth and the fourth meshing teeth are trapezoidal steps, rectangular steps, triangular steps, semicircular steps or circular steps.

10. An injection mould according to claim 1, characterized in that the lower surface of the movable cavity block (1) is provided with fifth meshing teeth, and the movable mould plate (3) is provided with sixth meshing teeth cooperating with the fifth meshing teeth, the fifth meshing teeth and the sixth meshing teeth cooperating to lock the movable cavity block (1) relative to the movable mould plate (3).

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