CN211683176U

CN211683176U - Cutting device on compound injection mould of switch socket panel membrane

Info

Publication number: CN211683176U
Application number: CN202020124624.5U
Authority: CN
Inventors: 方国军; 邓宽榕
Original assignee: Tecx Unions Technology Shenzhen Co ltd
Current assignee: Tecx Unions Technology Shenzhen Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-10-16
Anticipated expiration: 2030-01-19

Abstract

The utility model relates to a cutting device on a switch socket panel film composite injection mould, which comprises a core, wherein the core is movably arranged on a lower mould plate, an inclined plane is arranged at the edge of the core, which is close to the surface of one side of an upper mould, a cutter for cutting off a membrane is arranged on the inclined plane, the cutting edge of the cutter faces to the upper mould, and the cutting direction of the cutter is the same as the moving direction of the core; and a cutting groove matched with the cutter is formed in the side wall of the upper die cavity. The utility model discloses have and cut off the diaphragm and be difficult for the effect with diaphragm cutting off department extrusion deformation behind the compound die.

Description

Cutting device on compound injection mould of switch socket panel membrane

Technical Field

The utility model belongs to the technical field of the technique of injection mould and specifically relates to a cutting device on compound injection mould of switch socket panel membrane is related to.

Background

In the prior art, a chinese patent with application publication No. CN101774252A discloses a forming process of imprint injection molding of switch socket panel and a composite injection mold, as shown in fig. 1, the injection mold includes: go up mould 1, lower mould 2 and be in the diaphragm 7 between last mould 1 and lower mould 2, go up mould 1 and be provided with the die cavity on being close to the surface of lower mould 2 one side, lower mould 2 includes: the mold comprises a lower mold 2 plate, a mold core 21, a guide post 22 and an ejection device, wherein the mold core 21 is movably arranged on the lower mold 2 plate, a heating pipe 61 for heating a membrane 7 is arranged inside the mold core 21, and a step 212 is also arranged at the edge of the surface of one side, close to a cavity, of the mold core 21; the guide post 22 is fixedly arranged on the surface of one side of the lower die 2 plate close to the upper die 1 plate, and the mold core 21 is connected with the guide post 22 in a sliding manner; an ejector device is provided between the core 21 and the lower mold 2 plate, and an ejector pin 24 of the ejector device penetrates the core 21 and extends onto a surface of the core 21 on a side close to the cavity 11.

When the injection mold works, firstly, the membrane 7 is placed between the mold core 21 and the mold cavity, then the membrane 7 is heated through the heating pipe 61, after the membrane 7 is heated to the forming temperature, the upper mold 1 and the lower mold 2 are matched, at the moment, the edge of the step 212 on the mold core 21 is abutted against the side wall of the mold cavity, so that the membrane 7 is cut off, then, the resin is injected into the mold cavity from the feeding runner 12 at the upper mold 1 to form the resin layer 4, the resin layer 4 is fused with the membrane 7, after the resin layer 4 and the membrane 7 are cooled and shaped, the mold opening operation is carried out again, and then, a product formed by the resin layer 4 and the membrane 7 is ejected from the mold core 21 through the ejection device.

The above prior art solutions have the following drawbacks: the edge of ladder is when cutting off the diaphragm, and the surface that is the horizontality on the ladder will produce the extrusion to the cutting off department of diaphragm to make diaphragm cutting off department produce deformation, and diaphragm cutting off department will change the die cavity after producing deformation and be the shape of resin layer headspace, thereby exert an influence to the structure of resin layer, and then influence the quality of shaping product, so remain to improve.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a cutting device on compound injection mould of switch socket panel membrane, it has can cut off the diaphragm and be difficult for the effect with diaphragm cutting off department extrusion deformation behind the compound die.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a cutting device on a switch socket panel film composite injection mold comprises a mold core, wherein the mold core is movably arranged on a lower mold plate, an inclined plane is arranged at the edge of the surface of one side, close to an upper mold, of the mold core, a cutter for cutting off a membrane is arranged on the inclined plane, the cutting edge of the cutter faces the upper mold, and the cutting direction of the cutter is the same as the moving direction of the mold core; and a cutting groove matched with the cutter is formed in the side wall of the upper die cavity.

Through adopting above-mentioned technical scheme, the setting of cutter, the mesh of cutting off the diaphragm has been reached on the one hand, on the other hand cutter is when cutting, the area of contact of cutter and diaphragm is smaller, the cutter just is difficult for producing too big extrusion to the cutting department of module, the cutting off department of diaphragm is also difficult for the compressive deformation, and because got rid of the ladder and because the existence on inclined plane, the condition of extrusion diaphragm cutting off department just also is difficult for appearing when the cutter cuts, diaphragm cutting off department is also difficult for producing deformation, the structure of natural diaphragm just also is difficult for influencing the resin layer.

The utility model discloses can further configure to in a preferred example, the cutter is close to the surface of core center one side with the grooving is close to the lateral wall of die cavity center one side parallel to back in the cutter gets into the grooving, the cutter is close to the surface of core center one side and grooving and is close to the lateral wall butt of die cavity center one side.

Through adopting above-mentioned technical scheme for be difficult for there being the gap between the surface that the cutter is close to core center one side and the lateral wall that the grooving is close to die cavity center one side, help cutter and grooving's lateral wall to form the shearing, promoted the effect that the cutter cut off the diaphragm.

The utility model discloses can further configure to in a preferred example, the cutter is kept away from core center one side is provided with a plurality of on the surface and erects the groove, and adjacent twice are erected the groove interval and are parallel, and the length direction who erects the groove is the same with the direction of motion of core.

By adopting the technical scheme, the arrangement of the vertical groove ensures that the cutter is not easy to be absorbed by the cut-off part of the diaphragm when cutting the diaphragm, and is beneficial to smoothly finishing cutting by the cutter.

The utility model discloses can further configure to in a preferred example, the grooving is kept away from the fixed locating lever that is provided with on the lateral wall of die cavity center one side go up the mould and when the lower mould compound die reachs the default position, the locating lever with grooving notch one end lateral wall butt is kept away from to perpendicular groove.

Through adopting above-mentioned technical scheme, the setting of locating lever helps leaving the space of resin layer in the die cavity, and then helps the shaping of product.

The utility model discloses can further configure to in a preferred example, the tank bottom department of grooving is fixed and is provided with soft cushion when the cutter is in the grooving, the surface butt of grooving tank bottom one side is kept away from to the blade of cutter and soft cushion.

Through adopting above-mentioned technical scheme, the setting of cushion for the blade of cutter is difficult for receiving the damage, has promoted the life of cutter.

The utility model discloses can further configure to in a preferred example, the core is close to the edge of die cavity side surface is provided with the mounting groove that is used for installing the cutter, and the cutter passes through the bolt fastening in the mounting groove.

Through adopting above-mentioned technical scheme, the setting of mounting groove is conveniently installed the cutter, because the cutter passes through the bolt fastening in the mounting groove moreover for the cutter can be more convenient change.

The present invention may be further configured in a preferred example such that the mounting groove is away from the opening at the side wall of the core center side.

Through adopting above-mentioned technical scheme, the mounting groove is kept away from the opening of core center one side's lateral wall department, provides bigger operating space for twisting the bolt, and the bolt is conveniently twisted and is fixed the cutter.

The utility model discloses can further configure to in a preferred example, the mounting groove is close to be provided with the sealing strip on the lateral wall of core center one side, the sealing strip keep away from the surface of core center one side with the side surface butt of cutter.

Through adopting above-mentioned technical scheme, the setting of sealing strip for be difficult for having the gap between the lateral wall that cutter and mounting groove are close to core center one side, the diaphragm also is difficult for entering into the mounting groove when cutting off, has promoted the effect that the cutter cut off the diaphragm.

To sum up, the utility model discloses a following at least one useful technological effect:

the arrangement of the cutter achieves the purpose of cutting off the diaphragm, and the cutting part of the diaphragm is not easily extruded too much during cutting, so that the cutting part is not easily deformed, and meanwhile, the mold core is not easily extruded after entering the mold cavity due to the removal of the steps and the arrangement of the inclined plane, the cutting part of the diaphragm is not easily deformed naturally, and the structure is not easily influenced during molding of the resin layer;

the cutter is not easy to have a gap between the surface of one side of the cutter close to the center of the mold core and the side wall of one side of the cutting groove close to the center of the mold cavity, the cutter and the cutting groove are facilitated to form shearing, and the effect of cutting off the diaphragm by the cutter is improved.

Drawings

Fig. 1 is a schematic structural diagram in the background art of the present invention.

Fig. 2 is a schematic structural view of the middle upper die and the lower die of the utility model when the dies are opened.

Fig. 3 is an enlarged schematic view of a portion a of fig. 2.

Fig. 4 is a schematic structural view of the middle upper die and the lower die of the present invention when they are closed.

In the figure, 1, an upper die; 11. a cavity; 111. grooving; 1111. a soft cushion block; 1112. positioning a rod; 12. a feed runner; 2. a lower die; 21. a core; 211. a bevel; 2111. mounting grooves; 212. a step; 22. a guide post; 23. a lower template; 24. a top rod; 3. a cutter; 31. a vertical slot; 4. a resin layer; 5. a sealing strip; 6. positioning the heating plate; 61. heating a tube; 62. a positioning column; 7. a membrane.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2 and 3, for the utility model discloses a cutting device on switch socket panel film composite injection mould, including core 21, core 21 activity sets up on lower mould 2 board, is fixed with four guide pillars 22 through the bolt on the lower mould 2 board, and four guide pillars 22 are rectangle distribution, and guide pillar 22 is perpendicular to lower mould 2 board, and core 21 is passed by four guide pillars 22 respectively and core 21 and guide pillar 22 sliding connection; an inclined plane 211 is integrally formed at the edge of the surface of the mold core 21 close to one side of the upper mold 1, a cutter 3 for cutting off the diaphragm 7 is arranged on the inclined plane 211, the cutter 3 is annular and made of stainless steel, the cutting edge of the cutter 3 faces the upper mold 1, and the cutting direction of the cutter 3 is the same as the moving direction of the mold core 21; a cutting groove 111 matched with the cutter 3 is also formed on the side wall of the cavity 11 of the upper die 1.

Referring to fig. 2 and 3, the surface of the cutting knife 3 close to the center of the core 21 is parallel to the side wall of the cutting groove 111 close to the center of the cavity 11, and after the cutting knife 3 enters the cutting groove 111, the surface of the cutting knife 3 close to the center of the core 21 abuts against the side wall of the cutting groove 111 close to the center of the cavity 11, so that the cutting knife 3 forms shear with the side wall of the cutting groove 111, and the membrane 7 can be cut more smoothly by the cutting knife 3.

Referring to fig. 2 and 3, a plurality of vertical grooves 31 are formed in the surface of one side of the cutter 3, which is away from the center of the mold core 21, two adjacent vertical grooves 31 are spaced and parallel, and the length direction of the vertical grooves 31 is the same as the movement direction of the mold core 21, so that the cutter 3 is not easily sucked by the cut-off part of the film sheet 7 when cutting the film sheet 7, and smooth cutting by the cutter 3 is facilitated.

Referring to fig. 2 and 3, in order to protect the cutting edge of the cutting knife 3, a soft cushion 1111 is adhered to the bottom of the cutting groove 111, the soft cushion 1111 is made of soft heat-resistant rubber, and when the cutting knife 3 is located in the cutting groove 111, the cutting edge of the cutting knife 3 is abutted to the surface of the soft cushion 1111 on the side far from the bottom of the cutting groove 111, so that the cutting edge of the cutting knife 3 is not easily damaged.

Referring to fig. 2 and 4, a positioning rod 1112 is welded on a side wall of the cutting groove 111 far away from the center of the cavity 11, the positioning rod 1112 is cylindrical and made of stainless steel, and when the upper die 1 and the lower die 2 are closed to reach a preset position (the preset position means that the film 7 is attached to the inner wall of the cavity 11 and a forming space of the resin layer 4 is reserved between the film 7 and the core 21), the positioning rod 1112 is abutted against a side wall of one end of the vertical groove 31 far away from the notch of the cutting groove 111, so that the core 21 does not occupy the forming space of the resin layer 4, and the forming of the resin layer 4 is facilitated.

Referring to fig. 2 and 3, in order to facilitate installation and removal of the cutter 3, an installation groove 2111 for installing the cutter 3 is further formed in the edge of the surface of the mold core 21 close to the side of the mold cavity 11, the installation groove 2111 is located on the inclined surface 211, the cutter 3 is fixed in the installation groove 2111 through a bolt, and the installation groove 2111 is open at the side wall far away from the center of the mold core 21, so that an operator can replace the cutter 3, and the screw can be screwed more conveniently.

Referring to fig. 2 and 3, a sealing strip 5 is further adhered to a side wall of the mounting groove 2111 close to the center of the core 21, the sealing strip 5 is made of soft rubber, and a surface of the sealing strip 5 away from the center of the core 21 abuts against a side surface of the cutter 3, so that the diaphragm 7 and the resin are not easily squeezed into the mounting groove 2111.

Referring to fig. 2 and 3, a positioning heating plate 6 is further slidably sleeved on the guide post 22, the positioning heating plate 6 is annular, a heating pipe 61 is arranged inside the positioning heating plate 6, and the heating pipe 61 is used for heating the membrane 7; a positioning column 62 is fixed on the surface of the positioning heating plate 6 close to one side of the upper die 1, and the positioning column 62 is vertical to the positioning plate; the diaphragm 7 is provided with a positioning hole opposite to the positioning column 62, and when the diaphragm 7 is placed above the mold core 21, the positioning column 62 penetrates through the positioning hole, so that the placement position of the diaphragm 7 is accurate.

The implementation principle of the embodiment is as follows: when the injection mold works, firstly, the membrane 7 is placed on the positioning heating plate 6, and positioning is carried out through the positioning column 62 and the positioning hole, so that the membrane 7 is placed at the correct position; then, the membrane 7 is heated by a heating pipe 61, so that the membrane 7 reaches the forming temperature; then, carrying out a mold closing operation, so that the upper mold 1 and the lower mold 2 are closed, the mold core 21 enters the cavity 11, the cutter 3 cuts the diaphragm 7 while the mold core 21 moves to a preset position, and the cutter 3 cuts the diaphragm 7 and then enters the cutting groove 111, and at this time, the positioning rod 1112 enters the vertical groove 31 and abuts against the side wall of the vertical groove 31 close to the lower mold 2 plate side; then injecting resin from a feeding runner 12 at the upper die 1, so that a resin layer 4 is formed in the cavity 11, and the resin layer 4 and the membrane 7 are fused to form a finished product; and after the resin layer 4 and the diaphragm 7 are cooled, opening the mold, and ejecting a finished product formed by the resin layer 4 and the diaphragm 7 through an ejection device after the mold is opened.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A cutting device on a switch socket panel film composite injection mold comprises a mold core (21), wherein the mold core (21) is movably arranged on a lower mold (2) plate, and is characterized in that an inclined plane (211) is arranged at the edge of the mold core (21) close to one side surface of an upper mold (1), a cutter (3) for cutting off a membrane (7) is arranged on the inclined plane (211), the cutting edge of the cutter (3) faces the upper mold (1), and the cutting direction of the cutter (3) is the same as the moving direction of the mold core (21); a cutting groove (111) matched with the cutting knife (3) is arranged on the side wall of the cavity (11) of the upper die (1).

2. The cutting device on the composite injection mold of the panel film of the switch socket according to claim 1, wherein the surface of the cutting knife (3) on the side close to the center of the core (21) is parallel to the side wall of the cutting groove (111) on the side close to the center of the cavity (11), and after the cutting knife (3) enters the cutting groove (111), the surface of the cutting knife (3) on the side close to the center of the core (21) is abutted to the side wall of the cutting groove (111) on the side close to the center of the cavity (11).

3. The cutting device on the composite injection mold of the switch socket panel film according to claim 1, characterized in that a plurality of vertical grooves (31) are arranged on the surface of one side of the cutting knife (3) far away from the center of the mold core (21), two adjacent vertical grooves (31) are spaced and parallel, and the length direction of the vertical grooves (31) is the same as the moving direction of the mold core (21).

4. The cutting device for the composite injection mold of the switch socket panel film according to claim 3, wherein a positioning rod (1112) is fixedly arranged on a side wall of the cutting groove (111) far away from the center of the cavity (11), and when the upper mold (1) and the lower mold (2) are closed to reach a preset position, the positioning rod (1112) is abutted to a side wall of one end of the vertical groove (31) far away from the notch of the cutting groove (111).

5. The cutting device on the composite injection mold of the panel film of the switch socket according to claim 1, characterized in that a soft cushion block (1111) is fixedly arranged at the bottom of the cutting groove (111), and when the cutting knife (3) is in the cutting groove (111), the cutting edge of the cutting knife (3) is abutted to the surface of the soft cushion block (1111) on the side far away from the bottom of the cutting groove (111).

6. The cutting device on the composite injection mold of the panel film of the switch socket according to claim 1, wherein an installation groove (2111) for installing the cutting knife (3) is formed at the edge of the mold core (21) close to one side surface of the cavity (11), and the cutting knife (3) is fixed in the installation groove (2111) through a bolt.

7. The cutting device on the compound injection mold of the switch socket panel film according to claim 6, wherein the side wall of the installation groove (2111) on the side away from the center of the core (21) is opened.

8. The cutting device on the compound injection mold of the panel film of the switch socket according to claim 6, characterized in that a sealing strip (5) is arranged on the side wall of the installation groove (2111) close to the center side of the mold core (21), and the surface of the sealing strip (5) far away from the center side of the mold core (21) is abutted against the side surface of the cutting knife (3).