CN213137655U - Sliding block mechanism and die - Google Patents

Abstract

The application provides a slider mechanism and a die, and relates to the technical field of die manufacturing. Slider mechanism includes sliding block set spare and shovel machine, and the sliding block set spare slidable sets up between the cover half and the movable mould of mould, has seted up the direction inclined hole on the sliding block set spare, and the direction inclined hole is including relative first inclined plane and the second inclined plane that sets up, and the relative second inclined plane in first inclined plane is close to the mould, and shovel machine includes this body portion and sets up in the boss portion of this body portion one end, and this body portion is including the relative third inclined plane and the fourth inclined plane that set up, and one side that fourth inclined plane was kept away from to boss portion includes the fifth inclined plane. This application has realized the mould when the compound die, and the sliding block set closes earlier, and during the die sinking, the sliding block set back is opened, avoids the friction between sliding block set and cover half and the movable mould, reduces sliding block set's wearing and tearing, and then the effectual risk of avoiding the slider to insert the fever.

Description

Sliding block mechanism and die

Technical Field

The application relates to the technical field of mold manufacturing, in particular to a sliding block mechanism and a mold.

Background

In an injection mold, due to the structural characteristics of an injection molding part, the injection molding part is mostly required to be matched and molded with an upper mold and a lower mold of the mold, the slide block is in close contact with the upper mold and the lower mold when an injection molding product is injected, and particularly for some slender slide blocks, the slide block can slide relative to the upper mold and the lower mold when the mold is opened or closed, so that friction is generated between the slide block and the upper mold and the lower mold, and the risk of sliding block burning in an inserting mode exists.

SUMMERY OF THE UTILITY MODEL

For overcoming not enough among the prior art, this application provides a slider mechanism and mould for solve the slider and insert the problem of burning.

In order to achieve the purpose, the application provides a sliding block mechanism which is applied to a mold and comprises a sliding block component and a shovel machine;

the sliding block assembly is slidably arranged between the fixed die and the movable die of the die, a guide inclined hole is formed in the sliding block assembly, the guide inclined hole comprises a first inclined surface and a second inclined surface which are oppositely arranged, and the first inclined surface is close to the die relative to the second inclined surface;

the shovel machine comprises a body part and a boss part arranged at one end of the body part, the body part comprises a third inclined surface and a fourth inclined surface which are oppositely arranged, and one side, far away from the fourth inclined surface, of the boss part comprises a fifth inclined surface;

when the shovel machine is inserted into the inclined guide hole, the fifth inclined surface abuts against and pushes the first inclined surface before the third inclined surface, and when the shovel machine is pulled out of the inclined guide hole, the fourth inclined surface abuts against and pushes the second inclined surface.

In a possible embodiment, a transition bevel is provided between the fifth bevel and the third bevel.

In a possible embodiment, the third and fifth slopes are parallel to each other.

In a possible embodiment, a predetermined number of first folding grooves are provided on the third inclined surface and/or the fourth inclined surface and/or the fifth inclined surface.

In a possible embodiment, an end of the body portion away from the boss portion is provided with an installation portion connected with the movable mold and a limiting portion in limiting fit with the inclined guide hole.

In one possible embodiment, the slide block assembly comprises a first slide block and a second slide block, wherein the first slide block is detachably arranged on the second slide block;

one end of the first sliding block, which is far away from the second sliding block, is provided with a predetermined number of core sliding blocks, and the core sliding blocks extend towards one end, which is far away from the second sliding block;

the second slider slide set up in the cover half, the direction inclined hole runs through the setting of second slider.

In a possible implementation manner, the slide block assembly further comprises two pressing strips, the two pressing strips are arranged on the fixed die, and the two pressing strips are respectively located on two sides of the second slide block;

and flange parts are arranged on two sides of the second sliding block, and the pressing strips are in limit fit with the corresponding flange parts.

In a possible embodiment, a predetermined number of second fold line grooves are arranged on the bottom surface of the second sliding block matched with the fixed die.

In a possible implementation manner, a positioning part is further arranged on the bottom surface, a positioning groove is formed in the fixed die, and the positioning part is in touch fit with the end part of the positioning groove.

On the other hand, the application also provides a mold, which comprises a fixed mold, a movable mold arranged relative to the fixed mold and at least one slide block mechanism.

Compared with the prior art, the beneficial effects of the application are that:

according to the slider mechanism and the die, the slider mechanism comprises a slider component and a shovel machine; the sliding block assembly is slidably arranged between the fixed die and the movable die of the die, a guide inclined hole is formed in the sliding block assembly, the guide inclined hole comprises a first inclined surface and a second inclined surface which are oppositely arranged, and the first inclined surface is close to the die relative to the second inclined surface; the shovel machine comprises a body portion and a boss portion arranged at one end of the body portion, the body portion comprises a third inclined surface and a fourth inclined surface which are arranged oppositely, and one side, far away from the fourth inclined surface, of the boss portion comprises a fifth inclined surface.

When the fixed die and the movable die are assembled, the shovel machine is inserted into the guide inclined hole, and at the moment, the fifth inclined surface abuts against and pushes the first inclined surface before the third inclined surface, so that the sliding block assembly is driven to move towards the direction close to the die; when the fixed die and the movable die are opened, the shovel machine extracts the guide inclined hole, at the moment, the fixed die and the movable die are opened at a certain distance in advance, then the fourth inclined surface is abutted against the second inclined surface, and the sliding block assembly is driven to move towards the direction far away from the die.

This application has realized the mould when the compound die, and the sliding block set closes earlier, and during the die sinking, the sliding block set back is opened, avoids the friction between sliding block set and cover half and the movable mould, reduces sliding block set's wearing and tearing, and then the effectual risk of avoiding the slider to insert the fever.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic perspective view illustrating a slider mechanism according to an embodiment of the present disclosure;

FIG. 2 is a schematic perspective view of a slider mechanism provided in an embodiment of the present application from another perspective;

FIG. 3 is a schematic diagram illustrating an exploded perspective view of a shovel and a slider assembly in a slider mechanism according to an embodiment of the present disclosure;

FIG. 4 illustrates a cross-sectional view of a slider mechanism provided in an embodiment of the present application;

FIG. 5 illustrates an exploded cross-sectional view of a shovel and a slider assembly of the slider mechanism provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram illustrating a mold using a slider mechanism according to an embodiment of the present application;

FIG. 7 is a schematic diagram illustrating a state of a slider assembly and a product provided by an embodiment of the present application;

fig. 8 shows a schematic structural diagram of an injection molded product according to an embodiment of the present application.

Description of the main element symbols:

1-a slider mechanism; 10-a shovel machine; 100-a body portion; 1000-fourth slope; 1000 a-a first fold line trough; 1001-third inclined plane; 1001 a-transition bevel; 101-a boss portion; 1010-a fifth bevel; 102-a mounting portion; 1020-a threaded hole; 103-a limiting part; 11-a slider assembly; 110-a second slider; 1101-a bottom surface; 1101 a-a second fold line slot; 1102-a flange portion; 1103-guiding inclined hole; 1103 a-a first inclined plane; 1103 b-a second bevel; 111-a first slider; 1110 — a core slide; 12-pressing strips; 13-a positioning element;

2-fixing the mold;

3-moving the mold;

4-product; 40-core.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar 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 application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only 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 description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1 to 8, the present embodiment provides a slider mechanism 1 applied to a mold, wherein the slider mechanism 1 is disposed at one side of the mold and is used for molding a core 40 of a product 4.

Referring to fig. 7 and 6 in combination, the mold comprises a fixed mold 2 and a movable mold 3 arranged opposite to the fixed mold 2, and it can be understood that when the movable mold 3 is opened relative to the fixed mold 2, the mold opening is called; when the movable mold 3 is closed into the fixed mold 2, the mold closing is called. After the movable mold 3 and the fixed mold 2 are assembled, a cavity (not shown) for injection molding of the product 4 is formed between the movable mold 3 and the fixed mold 2.

Furthermore, a plurality of cavities can be designed in the die to realize injection molding of a plurality of products 4 at one time, so that the effect of improving the production efficiency is achieved.

Referring to fig. 1, fig. 3 and fig. 6, in the present embodiment, the sliding block mechanism 1 includes a sliding block assembly 11 and a shovel machine 10. Wherein, as can be understood, the shovel machine 10 realizes the propulsion of the sliding block component 11 by means of the inclined plane, the sliding block mechanism 1 is used for molding the mold core 40 of the product 4, the sliding block mechanism 1 is arranged between the fixed mold 2 and the movable mold 3 of the mold, and the sliding block component 11 can slide relative to the fixed mold 2 and the movable mold 3 of the mold.

Further, one end of the shovel 10 is attached to the movable die 3 of the die, that is, the shovel 10 moves together with the movable die 3. In other words, when the mold performs the mold opening action, the movable mold 3 drives the shovel machine 10 to move in the direction away from the fixed mold 2; when the mold performs a mold closing action, the movable mold 3 drives the shovel machine 10 to move towards the fixed mold 2.

The slider assembly 11 is provided with a guide inclined hole 1103, and the shovel machine 10 is in plug-in fit with the guide inclined hole 1103, in other words, the shovel machine 10 is slidably disposed in the guide inclined hole 1103. In conjunction with the mold opening and closing action of the mold, the working principle of the shovel 10 and the slide assembly 11 is as follows:

when the mold is opened, the shovel 10 pulls out the inclined guide hole 1103 of the slider assembly 11, and the shovel 10 pushes the slider assembly 11 to move away from the mold.

When the mold is closed, the shovel 10 is inserted into the oblique guide hole 1103 of the slider assembly 11, and the shovel 10 pushes the slider assembly 11 to move toward the mold.

Referring to fig. 3, fig. 4, fig. 5 and fig. 6, in the present embodiment, the guiding inclined hole 1103 has a rectangular parallelepiped structure, and the guiding inclined hole 1103 includes a first inclined surface 1103a and a second inclined surface 1103b that are disposed opposite to each other, where the first inclined surface 1103a and the second inclined surface 1103b are parallel to each other, and the first inclined surface 1103a is closer to the mold than the second inclined surface 1103 b. In other words, as shown in fig. 5, the first inclined surface 1103a is located on the left side, and the second inclined surface 1103b is located on the right side.

The shovel 10 includes a body portion 100 and a boss portion 101 provided at one end of the body portion 100, and the body portion 100 is shaped to match the guide inclined hole 1103.

Further, the main body 100 includes a third inclined surface 1001 and a fourth inclined surface 1000, which are disposed opposite to each other, and the third inclined surface 1001 and the fourth inclined surface 1000 are parallel to each other. The side of the boss portion 101 remote from the fourth ramp 1000 comprises a fifth ramp 1010, it being understood that the fifth ramp 1010 is on the same side as the third ramp 1001 and that the fifth ramp 1010 is parallel to the third ramp 1001.

To more clearly illustrate the relationship between the inclined surfaces, the following description will be made in conjunction with the operation of the shovel 10 with respect to the guide inclined hole 1103:

when the mold performs a mold closing operation, the shovel 10 is inserted into the inclined guide hole 1103, and the fifth inclined surface 1010 pushes the first inclined surface 1103a before the third inclined surface 1001, that is, the fifth inclined surface 1010 pushes the slider assembly 11 to move in a direction approaching the mold.

After the mold is closed, the shovel 10 is located in the inclined guide hole 1103, and the fifth inclined surface 1010 is located outside the inclined guide hole 1103, that is, the fifth inclined surface 1010 releases the pushing of the first inclined surface 1103a, at this time, the third inclined surface 1001 pushes the first inclined surface 1103a to limit the movement of the slider assembly 11 in the direction away from the mold, and a certain gap is reserved between the fourth inclined surface 1000 and the second inclined surface 1103 b.

When the mold is opened, the movable mold 3 is opened a certain distance with respect to the fixed mold 2, at this time, the fourth inclined surface 1000 moves toward the second inclined surface 1103b to eliminate the gap therebetween, and then the fourth inclined surface 1000 pushes the second inclined surface 1103b, that is, the fourth inclined surface 1000 pushes the slider assembly 11 to move away from the mold, so as to mold the core 40 of the product 4.

Referring to fig. 3, 4 and 5, in some embodiments, in order to make the operation of the shovel 10 entering the guiding inclined hole 1103 smoother, a transition inclined surface 1001a is disposed between the fifth inclined surface 1010 and the third inclined surface 1001, and the transition inclined surface 1001a connects the fifth inclined surface 1010 and the third inclined surface 1001, thereby implementing smooth transition between the fifth inclined surface 1010 and the third inclined surface 1001 and eliminating position jump between the fifth inclined surface 1010 and the third inclined surface 1001.

In other embodiments, the transition slope 1001a may be a plane or a curved surface, and the purpose of the transition slope is to achieve smooth transition between the fifth slope 1010 and the third slope 1001, so that the shovel 10 can enter the inclined guide hole 1103 more smoothly.

It is understood that the third inclined surface 1001 and the fifth inclined surface 1010 slide in surface-to-surface contact with the first inclined surface 1103a, and the fourth inclined surface 1000 slide in surface-to-surface contact with the second inclined surface 1103 b. However, in order to reduce the friction force between the surfaces, a lubricating medium needs to be added periodically, so that the lubricating effect is ensured, and the abrasion between the surfaces is reduced.

Therefore, in the present embodiment, the predetermined number of first folding grooves 1000a are provided on the third inclined plane 1001, the fourth inclined plane 1000 and the fifth inclined plane 1010 of the shovel machine 10, and the first folding grooves 1000a extend on the corresponding inclined planes along the moving direction of the shovel machine 10, so that the first folding grooves 1000a can be more conveniently machined on the shovel machine 10 than on the guiding inclined holes 1103.

The arrangement of the first folding grooves 1000a on the third inclined plane 1001, the fourth inclined plane 1000 and the fifth inclined plane 1010 can reduce the contact area between the surfaces, and on the other hand, certain lubricating media can be stored in the first folding grooves 1000a, so that the lubricating effect is more durable.

In some specific embodiments, the first folding groove 1000a may also be provided on any one of the third, fourth and fifth slopes 1001, 1000 and 1010.

In other specific embodiments, the first folding line groove 1000a may also be provided on any two of the third inclined surface 1001, the fourth inclined surface 1000 and the fifth inclined surface 1010.

Further, the shovel 10 is provided with an attachment portion 102 and a stopper portion 103 at one end of the main body portion 100 away from the boss portion 101. The mounting portion 102 is used for being connected with the moving die 3, the limiting portion 103 is located between the fourth inclined surface 1000 and the mounting portion 102, the limiting portion 103 extends in a direction away from the fourth inclined surface 1000, and the size of the limiting portion 103 in the thickness direction is larger than the size of the first inclined surface 1103a to the second inclined surface 1103b of the guide inclined hole 1103.

It can be understood that, as shown in fig. 4, after the shovel 10 is inserted into the inclined guide hole 1103, the limiting portion 103 abuts against the slider assembly 11, in other words, the limiting portion 103 is located at the upper end of the inclined guide hole 1103, so that the limiting engagement between the limiting portion 103 and the inclined guide hole 1103 is realized, and the maximum sliding stroke of the slider assembly 11 towards the mold can be limited.

In some specific embodiments, the mounting portion 102 is provided with a threaded hole 1020, and a bolt penetrates through the movable die 3 to be in threaded fit with the threaded hole 1020 in the mounting portion 102, so that the shovel machine 10 and the movable die 3 are connected through the bolt, and the shovel machine 10 is more convenient to mount and dismount.

The slider mechanism 1 that this embodiment provided has realized that the mould is when the compound die, and slider component 11 closes earlier, and during the die sinking, open behind slider component 11, avoid the friction between slider component 11 and cover half 2 and the movable mould 3, reduce slider component 11's wearing and tearing, and then the effectual risk of avoiding the slider to insert the fever.

Example two

Referring to fig. 1 to 8, the slider mechanism 1 provided in this embodiment is applied to a mold, and the slider mechanism 1 is disposed at one side of the mold and is used for molding a core 40 of a product 4. The present embodiment is an improvement on the first embodiment, and compared with the first embodiment, the main difference is that:

referring to fig. 4, fig. 7 and fig. 8, in the present embodiment, the slider assembly 11 includes a first slider 111 and a second slider 110, the first slider 111 is detachably disposed on the second slider 110, a predetermined number of core sliders 1110 are disposed at an end of the first slider 111 away from the second slider 110, and the core sliders 1110 extend toward an end away from the second slider 110. When the molds are closed, the core sliders 1110 extend into the corresponding cavities for molding the cores 40 of the products 4, wherein the core sliders 1110 are in sliding fit with the fixed mold 2 and the movable mold 3.

In some specific embodiments, the first slider 111 is clamped on the second slider 110, and may also be detachably mounted on the second slider 110 by bolts.

Above-mentioned, the second slider 110 slides and sets up on the cover half 2, and the inclined hole 1103 that leads runs through the setting of second slider 110, and it can be understood that shovel machine 10 is through cooperating with second slider 110, and again by the action of second slider 110 drive first slider 111.

Referring to fig. 2, fig. 3 and fig. 6, in the present embodiment, the slider assembly 11 further includes two pressing bars 12, the two pressing bars 12 are disposed on the fixed mold 2, the two pressing bars 12 are respectively located at two sides of the second slider 110, two sides of the second slider 110 are both provided with flange portions 1102, the flange portions 1102 extend in a direction away from the second slider 110, the pressing bars 12 are in limit fit with the corresponding flange portions 1102 to limit the movement of the second slider 110 along the mold opening direction, and the second slider 110 can only move in a direction close to or away from the mold.

The bottom surface 1101 of the second slider 110 matched with the fixed die 2 is provided with a predetermined number of second folding grooves 1101a, and the function of the second folding grooves 1101a is the same as that of the first folding grooves 1000a, so that friction is reduced, and a lubricating medium is stored.

Furthermore, a positioning member 13 is further disposed on the bottom surface 1101 of the second slider 110, the positioning member 13 is mounted on the bottom surface 1101 of the second slider 110 by a screw, and the positioning member 13 extends in a direction away from the bottom surface 1101 of the second slider 110. Corresponding to the positioning element 13 on the bottom 1101 of the second slider 110, a positioning groove (not shown) is disposed on the surface of the fixed mold 2 that fits the bottom 1101 of the second slider 110, and the positioning element 13 is in contact fit with the end of the positioning groove.

It will be appreciated that as the second block 110 moves in a direction toward the mold, the core block 1110 slides into the mold cavity as the retainer 13 is brought into abutting engagement with an end of the retainer.

When the retainer 13 is in touching engagement with the other end of the retainer as the second block 110 moves away from the mold, the core block 1110 slides out of the cavity, completing the molding of the core 40 of the product 4.

EXAMPLE III

Referring to fig. 1 to 8, the present embodiment provides a mold, including a fixed mold 2, a movable mold 3 disposed opposite to the fixed mold 2, and at least one slider mechanism 1, where the slider mechanism 1 is provided by any one of the embodiments.

Referring to fig. 6, further, in the present embodiment, a pair of slide block mechanisms 1 is disposed, and the pair of slide block mechanisms 1 are respectively located at two sides of the mold for providing production efficiency.

The mould that this embodiment provided has used the slider mechanism 1 that any one of above-mentioned embodiment provided, has realized that slider component 11 closes earlier when the mould closes the mould, and during the die sinking, opening behind slider component 11 avoids slider component 11 and fixed mould 2 and the friction between the movable mould 3, reduces slider component 11's wearing and tearing, and then the effectual risk of avoiding the slider to insert the fever. Furthermore, the later maintenance cost is reduced, and the production efficiency is improved.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. The sliding block mechanism is applied to a mold and comprises a sliding block assembly and a shovel machine;

the sliding block assembly is slidably arranged between the fixed die and the movable die of the die, a guide inclined hole is formed in the sliding block assembly, the guide inclined hole comprises a first inclined surface and a second inclined surface which are oppositely arranged, and the first inclined surface is close to the die relative to the second inclined surface;

the shovel machine comprises a body part and a boss part arranged at one end of the body part, the body part comprises a third inclined surface and a fourth inclined surface which are oppositely arranged, and one side, far away from the fourth inclined surface, of the boss part comprises a fifth inclined surface;

when the shovel machine is inserted into the inclined guide hole, the fifth inclined surface abuts against and pushes the first inclined surface before the third inclined surface, and when the shovel machine is pulled out of the inclined guide hole, the fourth inclined surface abuts against and pushes the second inclined surface.

2. The slider mechanism of claim 1 wherein a transition ramp is provided between the fifth ramp and the third ramp.

3. The slider mechanism of claim 1 wherein said third and fifth ramps are parallel to each other.

4. The slider mechanism of claim 1 wherein a predetermined number of first fold lines are provided on the third and/or fourth and/or fifth ramps.

5. The slider mechanism according to any one of claims 1 to 4, wherein an end of the body portion remote from the boss portion is provided with a mounting portion connected to the movable mold and a stopper portion in stopper-fitting engagement with the guide inclined hole.

6. The slider mechanism of claim 1, wherein the slider assembly comprises a first slider and a second slider, the first slider being removably disposed on the second slider;

one end of the first sliding block, which is far away from the second sliding block, is provided with a predetermined number of core sliding blocks, and the core sliding blocks extend towards one end, which is far away from the second sliding block;

the second slider slide set up in the cover half, the direction inclined hole runs through the setting of second slider.

7. The slider mechanism of claim 6, wherein the slider assembly further comprises two pressing bars, the two pressing bars are disposed on the fixed mold, and the two pressing bars are respectively located at two sides of the second slider;

and flange parts are arranged on two sides of the second sliding block, and the pressing strips are in limit fit with the corresponding flange parts.

8. The slider mechanism of claim 6 wherein the bottom surface of the second slider that mates with the stationary mold is provided with a predetermined number of second fold grooves.

9. A slider mechanism as claimed in claim 8, wherein a locating member is also provided on the bottom surface, and a locating slot is provided on the fixed die, the locating member being in touching engagement with an end of the locating slot.

10. A mould comprising a stationary mould part, a movable mould part arranged relative to the stationary mould part and at least one slide mechanism according to any one of claims 1 to 9.

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