CN210758991U - Injection mold ejection structure and injection mold - Google Patents

Abstract

The utility model provides an ejecting structure of injection mold, including the fixed die plate, the movable mould board, needle subassembly and at least one knot machine at the bottom of the cover half, it includes fixed buckle to detain the machine, the activity buckle, the connecting block, elastic component and fixture block, fixed buckle is fixed with fixed die plate relative position, the movable mould board can move towards the direction of keeping away from the fixed die plate, needle subassembly and activity buckle at the bottom of the cover half are connected to the connecting block, make needle subassembly synchronous motion at the bottom of activity buckle and the cover half, be equipped with the holding tank on the movable mould board, the fixture block passes through the elastic component and is connected with the diapire of holding tank, the fixture block can stretch out and draw back in the holding tank and remove, the activity buckle is equipped with the drag hook, the drag hook is held with the fixture block card, fixed buckle is equipped with the boss, the boss can move. The utility model discloses can realize movable mould board and cover half base pin subassembly synchronous motion and drawing of patterns operation, its low in production cost, the operation is stable, is suitable for and uses widely on a large scale.

Description

Injection mold ejection structure and injection mold

Technical Field

The utility model relates to an injection mold technical field particularly, relates to an injection mold is ejecting structure and injection mold.

Background

Need use injection mold when injection moulding product produces, when there is the buckle at the product top, need set up oblique top and ejecting structure on the cover half, otherwise can take place to glue the condition that the front mould pulled the product. However, in the prior art, an independent power system needs to be arranged for the fixed die lifter and the ejection mechanism to realize core pulling and ejection of the fixed die lifter, but the independent power system has the problems of high production cost, inconvenience in assembly, easiness in damage, unstable operation and the like.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be the ejecting structure of cover half need set up independent driving system.

In order to solve the problems, the utility model provides an injection mold ejection structure, which comprises a fixed template, a movable template, a fixed template bottom needle assembly and at least one button machine, wherein the button machine comprises a fixed buckle plate, a movable buckle plate, a connecting block, an elastic part and a clamping block, the fixed buckle plate and the fixed template are fixed in relative position, the movable template can move in the direction away from the fixed template, the connecting block is connected with the fixed template bottom needle assembly and the movable buckle plate so that the movable buckle plate and the fixed template bottom needle assembly synchronously move, a holding tank is arranged on the movable template, the clamping block is connected with the bottom wall of the holding tank through the elastic part, the clamping block can move in the holding tank in a telescopic way, the movable buckle plate is provided with a drag hook which is clamped with the clamping block, the fixed buckle plate is provided with a boss which can be matched with the clamping block when the movable buckle plate moves to a preset position, so as to overcome the elasticity of the elastic piece to enable the fixture block to retract, thereby enabling the fixture block to be separated from the draw hook.

Compared with the prior art, the utility model discloses the ejecting structure of injection mold can solve the ejecting problem of cover half, realizes movable mould board and cover half bottom pin subassembly synchronous motion and drawing of patterns operation, avoids taking place to glue the front mould phenomenon of pulling, and each part cooperation of this ejecting structure is ingenious, need not set up independent driving system, low in production cost, and the operation is stable, is suitable for and uses widely on a large scale.

Optionally, a limiting groove is formed in the clamping block, and the draw hook can enter the limiting groove and be clamped with the clamping block. The draw hook is clamped with the clamping block after entering the limiting groove, the connection is reliable, and the draw hook cannot be separated in the using process.

Optionally, the limiting groove is provided with a limiting surface, a limiting plate is arranged in the accommodating groove, and the limiting plate can abut against the limiting surface to limit the extending position of the fixture block. The extending position of the clamping block is limited through the limiting plate, the clamping block is prevented from falling off, and the assembly is convenient.

Optionally, the limiting groove is provided with a supporting surface, the draw hook is provided with a clamping surface, and the clamping surface can be abutted against the supporting surface to enable the draw hook to be clamped with the clamping block. The clamping surface of the draw hook is abutted against the abutting surface of the clamping block, so that the draw hook and the clamping block are reliably matched.

Optionally, the retractor has a reset surface, and the reset surface is disposed on the opposite side of the clamping surface and is inclined toward the clamping surface along the extending direction of the retractor. When the injection mold resets, the face that resets can extrude the fixture block and make the fixture block retract to the holding tank is interior, and the face that resets of slope is convenient for the fixture block and is retracted smoothly, makes injection mold smoothly reset.

Optionally, the fixture block has a first mating surface and a second mating surface that are disposed opposite to each other, and the first mating surface and the second mating surface incline toward the abutting surface along the extending direction of the fixture block. In the demolding and resetting processes of the injection mold, the clamping block can be matched with the boss, the elastic piece is extruded to enable the clamping block to retract, the clamping block can smoothly retract conveniently due to the obliquely arranged first matching surface and the obliquely arranged second matching surface, and the demolding and resetting of the injection mold are smooth.

Optionally, the boss has a first guide surface and a second guide surface which are oppositely arranged, and the first guide surface and the second guide surface are inclined towards the clamping surface along the extension direction of the boss. In the demolding and resetting processes of the injection mold, the boss can be matched with the clamping block, so that the clamping block retracts by overcoming the elasticity of the elastic part, and the clamping block smoothly retracts by the aid of the obliquely arranged first guide surface and the second guide surface.

Optionally, the extension height of the boss towards the fixture block direction is greater than the extension height of the draw hook towards the fixture block direction. The clamping block and the lug boss are matched to separate the clamping block from the draw hook, the fool-proof effect can be achieved, the situation that the draw hook of the movable buckle is not separated from the clamping block and the draw hook is broken due to the fact that the movable template continues to move is avoided.

Optionally, the fixed buckle is provided with a movable groove, and the movable buckle can slide in the movable groove. The movable groove limits the moving direction of the movable buckle plate, and the reliable operation of the buckle machine is ensured.

The utility model also provides an injection mold, including the ejecting structure of foretell injection mold.

Compared with the prior art, the utility model discloses injection mold has solved the ejecting problem of cover half, accomplishes the cover half through detaining quick-witted mechanism and looses the core to one side and ejecting, and its operation is reliable, low in production cost, and the practicality is strong, has fine spreading value.

Drawings

FIG. 1 is a structural diagram of a mold closing state of an injection mold according to an embodiment of the present invention;

fig. 2 is a structural diagram of the button machine according to the embodiment of the present invention;

fig. 3 is an exploded view of the button machine according to the embodiment of the present invention;

fig. 4 is a structural diagram of a fixture block according to an embodiment of the present invention;

fig. 5 is an assembly view of a fixture block according to an embodiment of the present invention;

FIG. 6 is an assembly view of the gusset of the present invention;

fig. 7 is a structural diagram of the injection mold clamping state fastening machine according to the embodiment of the present invention;

fig. 8 is a cross-sectional view of the injection mold clamping state fastening machine according to the embodiment of the present invention;

FIG. 9 is an enlarged view of portion A of FIG. 8;

fig. 10 is a structural diagram of the injection mold in the mold opening process according to the embodiment of the present invention;

FIG. 11 is a structural diagram of a fastening machine in the mold opening process of the injection mold according to the embodiment of the present invention;

fig. 12 is a sectional view of the fastening machine in the mold opening process of the injection mold according to the embodiment of the present invention;

FIG. 13 is an enlarged view of portion B of FIG. 12;

fig. 14 is a structural diagram of an injection mold in a mold-opened state according to an embodiment of the present invention.

Description of reference numerals:

1-a fixed buckle, 11-a boss, 111-a first guide surface, 112-a second guide surface and 12-a movable groove;

2-movable buckle plate, 21-drag hook, 211-clamping surface, 212-reset surface and 22-connecting block;

3-a clamping block, 31-a limiting groove, 311-a butting surface, 312-a limiting surface, 32-a first matching surface, 33-a second matching surface, 34-an elastic part and 35-a limiting plate;

41-fixed die bottom plate, 42-fixed die face needle plate, 43-fixed die bottom needle plate, 44-fixed die square iron, 45-fixed die plate and 46-heat runner plate

51-movable mould bottom plate, 52-movable mould surface needle plate, 53-movable mould bottom needle plate, 54-movable mould square iron and 55-movable mould plate.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be noted that terms such as "upper", "lower", "front", "rear", "left", "right", etc. in the embodiments indicate terms of orientation, and are only used for simplifying the description of positional relationships based on the drawings of the specification, and do not represent that the elements, devices, etc. indicated must be operated according to the specific orientation and defined operation and method, configuration in the specification, and such terms of orientation do not constitute limitations of the present invention.

The utility model discloses a be provided with coordinate system XYZ in the drawing of embodiment, wherein X's forward represents the place ahead, and X's backward represents the rear, and Y's forward represents the top, and Y's backward represents the below, and Z's forward represents rightly, and Z's direction represents the left.

In addition, the terms "first" and "second" mentioned in the embodiments of the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the embodiments of the present invention, the term "inside" and "outside" refers to the inside of the case and the outside of the case relative to a cavity structure, such as a case.

Combine fig. 1 to fig. 14 to show, the embodiment of the utility model discloses an injection mold with ejecting structure, including cover half subassembly, movable mould subassembly and at least one knot machine, wherein the ejecting structure of injection mold has been constituteed to cover half board 45, movable mould board 55, cover half end needle subassembly and knot machine for push up the core and ejecting from injection mold to one side with the product after the product shaping. The ejection structure can be adapted to injection molds in various forms, the fixed mold assembly and the movable mold assembly involved in the embodiment are only in the form of one injection mold, and in other embodiments, the ejection structure can be popularized and applied to molds in other forms.

Referring to fig. 1, it is a structural diagram of a mold closing state of the injection mold of this embodiment, a fixed mold assembly of the injection mold includes a fixed mold base plate 41, a hot runner plate 46, a fixed mold surface needle plate 42, a fixed mold bottom needle plate 43, a fixed mold square iron 44 and a fixed mold plate 45 which are assembled in sequence from top to bottom, the fixed mold surface needle plate 42 and the fixed mold bottom needle plate 43 constitute the fixed mold bottom needle assembly, a movable mold assembly is assembled below the fixed mold assembly, and the movable mold assembly includes a movable mold plate 55, a movable mold square iron 54, a movable mold bottom needle plate 53, a movable mold surface needle plate 52 and a movable mold base plate 51 which are assembled in sequence from top to. The fixed die plate 45 is fixed in position during the demolding, and the movable die plate 55 is moved downward to be away from the fixed die plate 45. The injection mold comprises one or more button machines, and in the embodiment, the button machines are respectively arranged on the front side and the rear side of the injection mold, so that the stable operation of mold closing and demolding actions is ensured.

Referring to fig. 2 to 6, the button machine comprises a fixed button plate 1, a movable button plate 2, a connecting block 22, an elastic element 34 and a clamping block 3. The upper part of the fixed pinch plate 1 is fixed on the hot runner plate 46 through screws, so that the relative position of the fixed pinch plate 1 and the fixed template 45 is fixed. The fixed buckle plate 1 is provided with a movable groove 12, the movable buckle plate 2 is assembled in the movable groove 12, the movable buckle plate 2 can slide up and down along the movable groove 12, the movable groove 12 limits the movement direction of the movable buckle plate 2, and the reliable operation of the button sewing machine is ensured. The connecting block 22 is fixed on the upper part of the movable buckle plate 2 through screws, and the connecting block 22 is connected with the fixed die bottom needle assembly through screws, so that when the movable buckle plate 2 moves, the fixed die bottom needle assembly moves along with the fixed die bottom needle assembly.

Referring to fig. 5, the movable mold plate (a partial structure of the movable mold plate in the figure) is provided with an accommodating groove for accommodating the fixture block 3, and the fixture block 3 can move in the accommodating groove. Fixture block 3 is connected with the diapire of holding tank through elastic component 34, and elastic component 34 is in compression state, and when fixture block 3 received the effort towards the holding tank, elastic component 34 received the extrusion and takes place deformation, and fixture block 3 is to the holding tank internal contraction, and when fixture block 3 did not receive the effort towards the holding tank, elastic component 34 deformation recovery made fixture block 3 stretch out the holding tank. The elastic member 34 is a spring in this embodiment, and in other embodiments, the elastic member 34 may also be in the form of an elastic sheet, a rubber elastic block, an elastic column, or the like.

The lower part of the movable buckle plate 2 is provided with a draw hook 21, the draw hook 21 can be clamped with the fixture block 3, when the draw hook 21 is clamped with the fixture block 3, the movable mould plate 55 and the movable buckle plate 2 synchronously move, and then the fixed mould bottom needle assembly is driven by the connecting block 22 to synchronously move, so that the fixed mould inclined ejection core pulling and ejection operation is completed.

The lower part of the fixed buckle plate 1 is provided with the boss 11, when the fixture block 3 moves to the position of the boss 11, the boss 11 pushes the fixture block 3, the elasticity of the elastic piece 34 is overcome to enable the fixture block 3 to move towards the inside of the accommodating groove, so that the fixture block 3 is separated from the draw hook 21, the movable template 55 continues to move downwards, the movable buckle plate 2 does not follow the movement any more, and the demoulding action is completed.

This injection mold realizes movable mould board and cover half base pin subassembly simultaneous movement and drawing of patterns operation through detaining the machine, avoids taking place to glue the front mould phenomenon of pulling, and each part cooperation of detaining the machine is ingenious, need not set up independent driving system, low in production cost, and the operation is stable, is suitable for and uses widely on a large scale.

The boss 11 of fixed buckle 1 and the drag hook 21 of activity buckle 2 all extend towards 3 directions of fixture block, and the extension height of boss 11 will be greater than the extension height of drag hook 21, can guarantee like this to move when 11 contact position with the boss when fixture block 3 can mutually support with boss 11, make no longer contact between fixture block 3 and the drag hook 21, realize fixture block 3 and drag hook 21 and break away from, play the foolproof effect, avoid the drag hook 21 and the fixture block 3 unseparation of activity buckle 2, and movable mould board 55 continues the motion and leads to drag hook 21 to break.

As shown in fig. 4 and 5, the lower portion of the latch 3 is provided with a limiting groove 31, and the draw hook 21 can enter the limiting groove 31 to be clamped with the latch 3, so that the draw hook 21 and the latch 3 can be reliably connected and cannot be separated during the synchronous movement. A detachable limiting plate 35 is arranged in the accommodating groove, and the limiting plate 35 is fixed through screws. The limiting plate 35 is installed at the front part of the extending direction of the fixture block 3, when the fixture block 3 is in the extending state, the limiting plate 35 enters the limiting groove 31 to block the fixture block 3 from continuously moving outwards, namely, the extending position of the fixture block 3 is limited by the limiting plate 35, and the fixture block 3 is prevented from falling off. And the limiting plate 35 can be detached, so that the fixture block 3 can be assembled and replaced conveniently.

Referring to fig. 9 and 13, the present embodiment defines the shapes of the latch 3, the hook 21, and the boss 11, so that the contact surfaces of the parts can be matched, and the injection mold can work smoothly. The fixture block 3 has a first mating surface 32 and a second mating surface 33 disposed opposite to each other, wherein the first mating surface 32 is disposed on one side close to the fixed mold plate 45, and the second mating surface 33 is disposed on the other side. The limiting groove 31 has a limiting surface 312 and a supporting surface 311, the supporting surface 311 is parallel to the extending direction of the latch 3, the limiting surface 312 is perpendicular to the supporting surface 311, and when the limiting plate 35 blocks the latch 3 from extending, the limiting plate 35 is supported against the limiting surface 312. The first engagement surface 32 and the second engagement surface 33 are inclined toward the contact surface 311 along the extending direction of the latch 3, and generally, the first engagement surface 32 and the second engagement surface 33 are symmetrically disposed, an angle between the first engagement surface 32 and the contact surface 311 is between 30 ° and 60 °, and an angle between the second engagement surface 33 and the contact surface 311 is also between 30 ° and 60 °. The first matching surface 32 and the second matching surface 33 which are obliquely arranged enable the fixture block 3 to be subjected to oblique extrusion force, so that the fixture block 3 can be conveniently and smoothly retracted, and the demoulding and resetting processes of the injection mould can be smoothly operated.

The draw hook 21 of the movable buckle plate 2 is provided with a holding surface 211 and a reset surface 212 which are oppositely arranged, wherein one side close to the fixed die plate 45 is the holding surface 211, and the other side is the reset surface 212. The clamping surface 211 is parallel to the abutting surface 311, and when the draw hook 21 is clamped with the fixture block 3, the clamping surface 211 abuts against the abutting surface 311, so that the draw hook 21 and the fixture block 3 are reliably matched, and the draw hook and the fixture block 3 cannot be separated in the synchronous movement process. Along the extending direction of the draw hook 21, the reset surface 212 is inclined towards the clamping surface 211, the angle between the reset surface 212 and the clamping surface 211 is between 30 degrees and 60 degrees, and the inclined reset surface 212 can slide relative to the first matching surface 32 of the fixture block 3, so that the inclined extrusion force can be conveniently applied to the fixture block 3, the fixture block 3 is pushed to retract smoothly, and the injection mold is enabled to reset smoothly.

The boss 11 of the fixed buckle 1 is provided with a first guide surface 111 and a second guide surface 112 which are oppositely arranged, wherein one side close to the fixed die plate 45 is the first guide surface 111, the other side is the second guide surface 112, and along the extension direction of the boss 11, the first guide surface 111 and the second guide surface 112 incline towards the holding surface 211 of the draw hook 21. In general, the first guide surface 111 and the second guide surface 112 are symmetrically disposed, an angle between the first guide surface 111 and the holding surface 211 is between 30 ° and 60 °, and an angle between the second guide surface 112 and the abutting surface 311 is also between 30 ° and 60 °. In the demolding process of the injection mold, the first guide surface 111 of the boss 11 can contact with the second matching surface 33 of the fixture block 3, the first guide surface 111 and the second matching surface 33 which are obliquely arranged are in sliding fit, the fixture block 3 is obliquely pushed to move in the accommodating groove, and the fixture block 3 is smoothly separated from the draw hook 21. Preferably, the first guiding surface 111 and the second mating surface 33 are parallel to each other, which is more favorable for smoothly pushing the latch 3 to move. In the resetting process of the injection mold, the second guide surface 112 of the boss 11 can contact with the first matching surface 32 of the fixture block 3, the second guide surface 112 and the first matching surface 32 which are obliquely arranged are in sliding fit, the fixture block 3 is obliquely pushed to move towards the accommodating groove, the fixture block 3 cannot be stopped by the draw hook 21 when moving upwards, after the fixture block 3 moves away from the boss 11, the elastic part 34 pushes the fixture block 3 to extend out, at the moment, the movable buckle plate 2 moves upwards to enable the clamping surface 211 of the draw hook 21 to abut against the abutting surface 311 of the fixture block 3, and the fixture block 3 and the draw hook 21 are clamped to realize synchronous movement. Preferably, the second guiding surface 112 and the first mating surface 32 are parallel to each other, which is more favorable for smoothly pushing the latch 3 to retract.

Referring to fig. 7 to 9, in a mold closing state of the injection mold, the movable mold plate 55 is close to the fixed mold plate 45, the movable buckle plate 2 is located at the upper part of the movable groove 12, the clamping block 3 is in an extended state and is blocked by the limiting plate 35, the draw hook 21 of the movable buckle plate 2 enters the limiting groove 31, and the clamping surface 211 is abutted to the abutting surface 311 to clamp the draw hook 21 and the clamping block 3. In the mold opening process, the fixed mold plate 45 is fixed, the movable mold plate 55 moves downwards to be far away from the fixed mold plate 45, the fixture block 3 moves downwards and drives the movable buckle plate 2 to move, the movable buckle plate 2 moves downwards along the movable groove 12, and the connecting block 22 drives the fixed mold bottom needle assembly to move downwards.

Referring to fig. 10 to 13, when the fixture block 3 moves to contact the boss 11 of the fixed buckle 1, the first guide surface 111 presses the second matching surface 33, the fixture block 3 compresses the elastic member 34 to move towards the inside of the accommodating groove, the fixture block 3 retracts and is separated from the draw hook 21, and at this time, the fixed die bottom pin assembly stops moving, so that the core pulling and ejecting of the fixed die inclined top are completed.

Referring to fig. 14, the movable die plate 55 continues to move downwards, the movable buckle 2 stops moving, the fixed die assembly and the movable die assembly are separated from each other, and the die opening operation is completed.

When the injection mold resets and closes the mold, the bottom of the boss 11 of the fixed pinch plate 1 and the draw hook 21 of the movable pinch plate 2 contact with the top of the fixture block 3, namely the second guide surface 112 and the reset surface 212 are extruded with the first matching surface 32 by inclined surfaces, the fixture block 3 compresses the elastic part 34 to move towards the inside of the accommodating groove, and the movable mold plate 55 can move upwards freely. And in the resetting process of the movable mould plate 55, a resetting rod in the mould is pushed to reset the fixed mould bottom needle assembly. After the fixture block 3 leaves the position of the boss 11, the elastic piece 34 is deformed and restored to extend the fixture block 3, and the fixture block 3 is clamped with the draw hook 21 of the movable buckle plate 2. The movable mold plate 55 returns to a position close to the fixed mold plate 45, and the resetting and mold closing of the injection mold are completed.

The injection mold of this embodiment has solved the ejecting problem of cover half through detaining quick-witted mechanism, need not set up extra driving system and can realize that the cover half pushes up to one side and loosens the core and ejecting, has practiced thrift manufacturing cost, and each part cooperation of detaining machine is ingenious, and the operation is reliable, therefore this injection mold has fine practicality and spreading value.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (10)

1. The utility model provides an injection mold ejection structure, its characterized in that, includes fixed die plate (45), movable mould board (55), cover half end needle subassembly and at least one knot machine, the knot machine includes fixed buckle (1), activity buckle (2), connecting block (22), elastic component (34) and fixture block (3), fixed buckle (1) with fixed die plate (45) relative position is fixed, movable mould board (55) can move towards the direction of keeping away from fixed die plate (45), connecting block (22) are connected cover half end needle subassembly with activity buckle (2), make activity buckle (2) with cover half end needle subassembly synchronous motion, be equipped with the holding tank on movable mould board (55), fixture block (3) pass through elastic component (34) with the diapire of holding tank is connected, fixture block (3) can be in the holding tank flexible removal, activity buckle (2) are equipped with drag hook (21), drag hook (21) with fixture block (3) card is held, fixed buckle (1) is equipped with boss (11), boss (11) can activity buckle (2) move when predetermineeing the position with fixture block (3) cooperation, in order to overcome the elasticity of elastic component (34) makes fixture block (3) retract, thereby make fixture block (3) with drag hook (21) break away from.

2. The injection mold ejection structure according to claim 1, wherein a limiting groove (31) is formed in the fixture block (3), and the draw hook (21) can enter the limiting groove (31) to be clamped with the fixture block (3).

3. An injection mold ejection structure according to claim 2, wherein the limiting groove (31) has a limiting surface (312), a limiting plate (35) is disposed in the receiving groove, and the limiting plate (35) can abut against the limiting surface (312) to limit the protruding position of the fixture block (3).

4. The injection mold ejection structure according to claim 2, wherein the limiting groove (31) has a supporting surface (311), the draw hook (21) has a holding surface (211), and the holding surface (211) can abut against the supporting surface (311) to hold the draw hook (21) and the fixture block (3).

5. An injection mold ejection structure according to claim 4, wherein the draw hook (21) has a reset surface (212), the reset surface (212) is disposed on an opposite side of the catching surface (211), and the reset surface (212) is inclined toward the catching surface (211) in an extending direction of the draw hook (21).

6. An injection mold ejection structure according to claim 4, wherein the fixture block (3) has a first mating surface (32) and a second mating surface (33) which are oppositely arranged, and the first mating surface (32) and the second mating surface (33) are inclined toward the abutting surface (311) along the extending direction of the fixture block (3).

7. An injection mold ejection structure according to claim 4, wherein the boss (11) has a first guide surface (111) and a second guide surface (112) which are disposed oppositely, the first guide surface (111) and the second guide surface (112) being inclined toward the catching surface (211) in an extending direction of the boss (11).

8. An injection mold ejection structure according to claim 1, wherein an extension height of the boss (11) toward the block (3) is greater than an extension height of the hook (21) toward the block (3).

9. An injection mould ejection structure according to claim 1, characterised in that the fixed gusset (1) is provided with a movable slot (12), the movable gusset (2) being slidable within the movable slot (12).

10. An injection mold comprising the injection mold ejection structure of any of claims 1-9.

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