CN218462871U - Injection mold for outer shell - Google Patents

Abstract

The utility model discloses an injection mold for an outer shell, which comprises a front mold component, a rear mold component and a lateral slide component, wherein the front mold component comprises a front mold core and a front template, and a first molding groove is arranged on the front mold core; the rear die assembly comprises a rear die core and a rear die plate, and a first forming boss is arranged on the rear die core; the lateral slide assembly comprises a first sliding molding part and a second sliding molding part, the first sliding molding part comprises a first molding sliding block, and the second sliding molding part comprises a second molding sliding block. The utility model discloses a set up preceding mould subassembly, back mould subassembly and side direction capable position subassembly to can carry out the shaping operation to second inclined plane and third inclined plane and first inclined plane respectively through first shaping bellying and second shaping bellying, then before carrying out the drawing of patterns, make first shaping bellying and second shaping bellying remove to the direction of keeping away from the product, so, each inclined plane just can not influence the normal drawing of patterns of product, realize directly through mould to each inclined plane one shot forming.

Description

Injection mold for outer shell

Technical Field

The utility model relates to an injection mold technical field especially relates to an outer shell body injection mold.

Background

The injection mold is a tool for producing plastic products, and particularly, the injection mold is used for injecting heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and cooling and solidifying are carried out to obtain a product with a certain shape.

Referring to fig. 1 and 2, the outer housing 20 is applied to the automobile industry, the outer housing 20 is composed of a housing 21 and a buckle 22, the buckle 22 is disposed on the housing 21, and the housing 21 is provided with a plurality of inclined surfaces, including a first inclined surface 21a, a second inclined surface 21b, and a third inclined surface 21c. Because the mounting portion of the housing 21 has a complex structure, the first inclined surface 21a, the second inclined surface 21b and the third inclined surface 21c hinder normal mold opening of the mold and affect normal mold release of the housing 21, and in general molds, the inclined surfaces that hinder normal mold release of the mold are generally set to be surfaces convenient for mold release, and are secondarily processed into inclined surfaces after demolding of products, but this method is time-consuming and labor-consuming and also affects accuracy of outer surfaces of products.

Therefore, how to design an injection mold that does not influence the normal demolding of the housing 21, and can directly process and mold each inclined surface through the mold at one time, thereby improving the production efficiency and the product surface precision is a problem that needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing one kind and neither influencing the normal drawing of patterns of casing, can directly pass through the mould again to each inclined plane one shot forming to improve the shell body injection mold of production efficiency and product surface precision.

The purpose of the utility model is realized through the following technical scheme:

an outer shell injection mold comprising: the die comprises a front die assembly, a rear die assembly and a lateral slide assembly, wherein the front die assembly comprises a front die core and a front template, the front die core is arranged on the front template, and a first forming groove is formed in the front die core; the rear die assembly comprises a rear die core and a rear die plate, the front die core and the rear die core are arranged in alignment, the rear die core is arranged on the rear die plate, and a first forming boss is arranged on the rear die core; the lateral slide assembly comprises a first slide forming part and a second slide forming part, the first slide forming part and the second slide forming part are positioned between the front die assembly and the rear die assembly, the first slide forming part comprises a first forming sliding block, a first forming convex part is arranged on the first forming sliding block, the second slide forming part comprises a second forming sliding block, and a second forming convex part is arranged on the second forming sliding block; when the front mold core and the rear mold core are buckled, the first forming groove, the first forming boss, the first forming protrusion and the second forming protrusion jointly form a first forming cavity of the shell, and when the rear mold core moves in a direction far away from the front mold core, the first forming sliding block and the second forming sliding block respectively move in a direction far away from the shell.

In one embodiment, the front mold plate is provided with a front mold mounting groove, and the front mold core is disposed on the front mold mounting groove.

In one embodiment, the front mold core is further provided with a second forming groove, and the second forming groove is located on one side of the first forming groove.

In one embodiment, the rear mold core is further provided with a second molding boss.

In one embodiment, the rear mold core is further provided with a positioning block.

In one embodiment, the lateral slide assembly further includes a third sliding molding part, the third sliding molding part includes a sliding molding block, and when the front mold core is engaged with the rear mold core, the second molding groove, the second molding boss and the sliding molding block together form a second molding cavity of the buckle.

In one embodiment, the third sliding forming part further comprises a guide block, a guide slide rail and a third guide rod, the guide block is arranged on the front template, the guide slide rail is arranged on the rear template, the sliding forming block is connected with the guide slide rail in a sliding manner, one end of the third guide rod is arranged on the guide block, and the third guide rod is arranged on the sliding forming block in a penetrating manner in a sliding manner.

In one embodiment, the front mold assembly further includes a front mold limiting block, the front mold limiting block is disposed on a side of the front mold plate close to the front mold core, and a side surface of the front mold limiting block abuts against a side surface of the front mold core.

In one embodiment, the rear mold assembly further includes a rear mold limiting block, the rear mold limiting block is disposed on one side of the rear mold plate close to the rear mold core, one side of the rear mold limiting block abuts against one side of the rear mold core, and the rear mold limiting block and the front mold limiting block are aligned.

In one embodiment, the injection mold further comprises a longitudinal demolding assembly, the longitudinal demolding assembly is connected with the rear mold assembly, and the longitudinal demolding assembly is used for pushing the shell and the buckle to move in a direction away from the rear mold core.

Compared with the prior art, the utility model discloses at least, following advantage has:

the utility model discloses an outer casing injection mold is through setting up preceding mould subassembly, back mould subassembly and side direction position subassembly, thereby can be through first shaping recess, first shaping boss, first shaping bellying and second shaping bellying constitute the first molding cavity of casing jointly, wherein, first shaping bellying and second shaping bellying carry out the shaping operation to second inclined plane and third inclined plane and first inclined plane respectively, then through in the back mould subassembly when to keeping away from the direction of preceding mould subassembly and remove, make first shaping bellying and second shaping bellying remove to the direction of keeping away from the product, so, each inclined plane just can not influence the normal die sinking of mould, also can not influence the normal drawing of patterns subassembly to the product, realize directly through mould to each inclined plane one-time forming, thereby improve production efficiency and product surface precision, make the overall structure of mould compacter.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below.

FIG. 1 is a schematic structural diagram of an outer casing;

FIG. 2 is a schematic structural view of the buckle of FIG. 1;

fig. 3 is a schematic structural view of an injection mold for an outer shell according to an embodiment of the present invention;

FIG. 4 is a cross-sectional structural schematic view of the outer housing injection mold of FIG. 3;

FIG. 5 is a cross-sectional structural schematic view of another perspective of the outer housing injection mold of FIG. 3;

FIG. 6 is a schematic view of the injection mold for an outer shell of FIG. 3 with the front mold assembly removed;

FIG. 7 is a cross-sectional structural view of the outer shell injection mold of FIG. 6 with the front mold assembly removed;

FIG. 8 is a top view schematic illustration of the outer shell injection mold of FIG. 6 with the front mold assembly removed;

FIG. 9 is a schematic structural diagram of a front mold core and a rear mold core of the injection mold for an outer shell shown in FIG. 3;

fig. 10 is a schematic structural view of the front mold core and the rear mold core of the outer shell injection mold shown in fig. 3 from another perspective.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10, an injection mold 10 for an outer case includes: the mold comprises a front mold assembly 100, a rear mold assembly 200 and a lateral slide assembly 300, wherein the front mold assembly 100 comprises a front mold core 110 and a front template 120, the front mold core 110 is arranged on the front template 120, and a first molding groove 111 is formed in the front mold core 110; the rear mold assembly 200 comprises a rear mold core 210 and a rear mold plate 220, the front mold core 110 and the rear mold core 210 are arranged in alignment, the rear mold core 210 is arranged on the rear mold plate 220, and a first molding boss 211 is arranged on the rear mold core 210; the lateral slide assembly 300 comprises a first slide molding part 310 and a second slide molding part 320, the first slide molding part 310 and the second slide molding part 320 are positioned between the front mold assembly 100 and the rear mold assembly 200, the first slide molding part 310 comprises a first molding slider 311, a first molding convex part is arranged on the first molding slider 311, the second slide molding part 320 comprises a second molding slider 321, and a second molding convex part is arranged on the second molding slider 321; when the front core 110 is engaged with the rear core 210, the first forming groove 111, the first forming protrusion 211, the first forming protrusion and the second forming protrusion together form a first forming cavity of the housing, and when the rear core 210 moves away from the front core 110, the first forming slider 311 and the second forming slider 321 move away from the housing.

It should be noted that, the front mold assembly 100 is connected to a spraying end of an injection molding machine, the rear mold assembly 200 is connected to a moving end of the injection molding machine, during an injection molding operation, the front mold assembly 100 and the rear mold assembly 200 are in a mold closing state, the first molding groove 111, the first molding boss 211, the first molding boss on the first molding slider 311, and the second molding boss on the second molding slider 321 jointly form a first molding cavity of the housing 21, a plastic liquid is sprayed onto the front mold assembly 100 from the spraying end of the injection molding machine, the plastic liquid flows into the first molding cavity through the front mold assembly 100, and is solidified into the housing 21 in the first molding cavity; after the molding operation is completed, the moving end of the injection molding machine drives the rear mold assembly 200 to move in the direction away from the front mold assembly 100, and while moving, the first sliding molding part 310 and the second sliding molding part 320 located between the rear mold assembly 200 and the front mold assembly 100 respectively move in the direction away from the housing 21, wherein the first molding protrusion on the first sliding molding part 310 is used for molding the second inclined surface 21b and the third inclined surface 21c, and the second molding protrusion on the second sliding molding part 320 is used for molding the first inclined surface 21 a. In the present embodiment, since the mounting portion of the housing 21 has two ends, there are two inclined surfaces that are the same as the first inclined surface 21a, the second inclined surface 21b, and the third inclined surface 21c, respectively, so that there are two first sliding molded articles 310, two first sliding molded articles 310 respectively perform the forming process on the two second inclined surfaces 21b and the third inclined surfaces 21c, and there are two second sliding molded articles 320, and two second sliding molded articles 320 respectively perform the forming process on the two first inclined surfaces 21a, so that the inclined surfaces that hinder the normal demolding of the housing 21 can be laterally formed and the demolding can be completed, thereby achieving the one-step forming and improving the production efficiency.

As shown in fig. 4 and 5, in one embodiment, the front mold plate 120 is formed with a front mold mounting groove, and the front mold core 110 is disposed in the front mold mounting groove.

It should be noted that, for example, the front mold core 110 may be installed and fixed in the front mold installation groove by using screw members such as bolts or screws, so that subsequent detachment and replacement may be facilitated. Similarly, the rear mold plate 220 is also provided with a rear mold mounting groove, for example, the rear mold core 210 may also be mounted and fixed by screw members such as bolts or screws.

Further, the front mold assembly 100 further comprises a front mold base plate 130, the front mold base plate 130 is connected with the front mold plate 120, the front mold base plate 130 is used for mounting and fixing the front mold assembly 100 on the injection end of the injection molding machine, wherein the front mold assembly 100 further comprises a sprue bush 140, a through hole is formed in the front mold base plate 130, the sprue bush 140 is arranged on the through hole, and the sprue bush 140 is aligned with the injection port of the injection molding machine.

Referring to fig. 8, 9 and 10, in one embodiment, the front mold core 110 is further provided with a second forming groove 112, and the second forming groove 112 is located at one side of the first forming groove 111.

It should be noted that there are three second forming grooves 112, and three second forming grooves 112 are aligned in an aligned manner, in this embodiment, the rear mold core 210 is further provided with three second forming bosses 212, similarly, the second forming bosses 212 are located on one side of the first forming bosses 211, and the second forming bosses 212 are three, and the three second forming bosses 212 are aligned in an aligned manner, and each second forming boss 212 is aligned with each second forming groove 112 one by one.

Further, the lateral slide assembly 300 further includes a third slide molding part 330, the third slide molding part 330 includes a slide molding block 331, and when the front core 110 is engaged with the rear core 210, the second molding groove 112, the second molding protrusion 212 and the slide molding block 331 together form a second molding cavity of the buckle 22.

It should be noted that, the sliding forming block 331 is provided with three forming inserts, each forming insert forms a second forming cavity of the buckle 22 together with each second forming groove 112 and each second forming boss 212, so that there are three second forming cavities, and thus, the production efficiency can be further improved. In addition, two parts of the shell 21 and the buckle 22 can be simultaneously produced by one die, so that the production cost is saved.

As shown in fig. 9 and 10, in one embodiment, the rear mold core 210 is further provided with a positioning block 213.

It should be noted that, the positioning groove 113 is disposed on the front mold core 110, when the front mold core 110 is fastened to the rear mold core 210, the positioning block 213 is disposed on the positioning groove 113, and the positioning block 213 and the positioning groove 113 can ensure that the front mold core 110 and the rear mold core 210 are not dislocated in a mold closing state, thereby further improving the product quality; specifically, six positioning blocks 213 and six positioning grooves 113 are provided, so that the positioning accuracy can be further improved.

Referring to fig. 4 and 8, in an embodiment, the first sliding molding member 310 further includes a first fixing block 312, a first guide rod 313 and a first guide rail 314, the first guide rod 313 is connected to the first fixing block 312, the first fixing block 312 is disposed on the front mold plate 120, the first guide rod 313 is slidably disposed on the first molding slider 311, the first guide rail 314 is disposed on the rear mold plate 220, and the first molding slider 311 is slidably connected to the first guide rail 314.

The first guide bar 313 is fixed to the front mold 120 by the first fixing block 312, the first molding slider 311 is slidably connected to the first guide rail 314 of the rear mold 220, the rear mold 220 moves in a direction away from the front mold 120 when opening the mold, and the first molding slider 311 moves in a direction away from the second inclined surface 21b and the third inclined surface 21c along the first guide bar 313 and the first guide rail 314, respectively, thereby realizing lateral mold release of the second inclined surface 21b and the third inclined surface 21c.

Further, as shown in fig. 7 and 8, the second sliding molded part 320 further includes a second guide block 322, a second guide rod 323, and a second guide rail 324, the second guide rod 323 is connected to the second guide block 322, the second guide block 322 is disposed on the front mold plate 120, the second guide rod 323 is slidably disposed on the second molding slider 321, the second guide rail 324 is disposed on the rear mold plate 220, and the second molding slider 321 is slidably connected to the second guide rail 324.

Similarly, the second guide bar 323 is fixed to the front mold plate 120 by the second guide block 322, the second forming slider 321 is slidably connected to the second guide rail 324 of the rear mold plate 220, when opening the mold, the rear mold plate 220 moves in a direction away from the front mold plate 120, the second guide bar 323 and the second guide block 322 move in a direction away from the rear mold plate 220 along with the front mold plate 120, and the second forming slider 321 moves in a direction away from the first inclined surface 21a along the second guide bar 323 and the second guide rail 324, respectively, thereby achieving lateral mold release of the first inclined surface 21 a.

In an embodiment, the third sliding molded part 330 further includes a guide block 332, a guide rail 333, and a third guide rod 334, the guide block 332 is disposed on the front mold plate 120, the guide rail 333 is disposed on the rear mold plate 220, the sliding molded block 331 is slidably connected to the guide rail 333, one end of the third guide rod 334 is disposed on the guide block 332, and the third guide rod 334 is slidably disposed on the sliding molded block 331.

When the mold is opened, the rear mold plate 220 moves in a direction away from the front mold plate 120, and the guide block 332 and the third guide bar 334 also move in a direction toward the rear mold plate 220 along with the front mold plate 120, and the slide molding block 331 moves in a direction away from the clip 22 along the guide slide 333, thereby realizing lateral mold release of the clip 22.

In one embodiment, the front mold assembly 100 further includes a front mold limiting block, the front mold limiting block is disposed on a side of the front mold plate 120 close to the front mold core 110, and a side of the front mold limiting block abuts against a side of the front mold core 110.

It should be noted that three front mold limiting blocks are provided, one side surface of each front mold limiting block abuts against one side surface of the front mold core 110, and the front mold core 110 is further limited and fixed through the front mold limiting blocks, so that the problem that the precision of a product is affected by the left-right shaking of the front mold core 110 is avoided.

Further, the rear mold assembly 200 further includes a rear mold limiting block 250, the rear mold limiting block 250 is disposed on one side of the rear mold plate 220 close to the rear mold core 210, one side of the rear mold limiting block 250 abuts against one side of the rear mold core 210, and the rear mold limiting block and the front mold limiting block are aligned.

It should be noted that, the same, back mould stopper 250 also is provided with threely, and three back mould stopper 250 is installed respectively and is fixed on one side that back template 220 is close to back mould benevolence 210, through back mould stopper, carries out further spacing fixed to back mould benevolence 210 to avoid back mould benevolence 210 to appear rocking from side to side, influence the precision of product.

In one embodiment, the outer housing injection mold 10 further includes a longitudinal demolding assembly 400, the longitudinal demolding assembly 400 is connected to the rear mold assembly 200, and the longitudinal demolding assembly 400 is used for pushing the housing 21 and the buckle 22 to move away from the rear mold core 210.

It should be noted that the longitudinal demolding assembly 400 includes a push plate 410, a return spring 430, a guide pillar, a first pushing member 420 and a second pushing member, the first pushing member 420 and the second pushing member are respectively connected to the push plate 410, a pushing end of the first pushing member 420 abuts against the housing 21, a pushing end of the second pushing member abuts against the buckle 22, the first pushing member 420 is used for pushing the housing 21 to move in a direction away from the rear mold core 210, and the second pushing member is used for pushing the buckle 22 to move in a direction away from the rear mold core 210; one end of the guide post is disposed on the push plate 410, the other end of the guide post is disposed on the rear mold plate 220, and the return spring 430 is disposed on the guide post. When demolding is carried out, the rear mold assembly 200 moves towards the direction far away from the front mold assembly 100, and meanwhile, the first sliding molded part 310 and the second sliding molded part 320 are driven to move towards the direction far away from the shell 21, so that lateral demolding is carried out on the first inclined surface 21a, the second inclined surface 21b and the third inclined surface 21c, and therefore the shell 21 is prevented from being blocked by the first inclined surface 21a, the second inclined surface 21b and the third inclined surface 21c when longitudinal demolding is carried out, finally, the push plate 410 drives the first pushing part 420 to carry out longitudinal demolding operation on the shell 21, and the push plate 410 drives the second pushing part to carry out longitudinal demolding operation on the buckle 22; after the demolding operation of the housing 21 and the clip 22 is completed, the push plate 410 is driven to return to the initial position by the return spring 430.

Further, the rear mold assembly 200 further includes two block-up blocks 230 and a rear mold base plate 240, one ends of the two block-up blocks 230 are respectively connected with two ends of the rear mold plate 220, and the other ends of the two block-up blocks 230 are respectively disposed on the rear mold base plate 240.

It should be noted that a clearance space is formed between the two block pads 230, so that a moving space can be reserved for the longitudinal demolding assembly 400 during the ejection operation, and thus, the overall structure of the mold can be more compact; the rear mold shoe 240 is used to mount and secure the rear mold assembly 200 to the moving end of the injection molding machine.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An outer shell injection mold, comprising:

the front die assembly comprises a front die core and a front template, the front die core is arranged on the front template, and a first forming groove is formed in the front die core;

the rear mould assembly comprises a rear mould core and a rear mould plate, the front mould core and the rear mould core are arranged in alignment, the rear mould core is arranged on the rear mould plate, and a first forming boss is arranged on the rear mould core; and

the lateral slide assembly comprises a first slide forming part and a second slide forming part, the first slide forming part and the second slide forming part are positioned between the front die assembly and the rear die assembly, the first slide forming part comprises a first forming sliding block, a first forming bulge is arranged on the first forming sliding block, the second slide forming part comprises a second forming sliding block, and a second forming bulge is arranged on the second forming sliding block;

when the front mold core is buckled with the rear mold core, the first forming groove, the first forming boss, the first forming protrusion and the second forming protrusion jointly form a first forming cavity of the shell, and when the rear mold core moves in a direction far away from the front mold core, the first forming sliding block and the second forming sliding block respectively move in a direction far away from the shell.

2. An injection mold for an outer shell as recited in claim 1, wherein the front mold plate has a front mold mounting groove, and the front mold core is disposed on the front mold mounting groove.

3. The injection mold for an outer shell according to claim 2, wherein the front mold core is further provided with a second forming groove, and the second forming groove is located at one side of the first forming groove.

4. An injection mold for an outer shell as claimed in claim 3, wherein the rear mold core is further provided with a second molding boss.

5. The injection mold for an outer shell as claimed in claim 4, wherein the back mold core is further provided with a positioning block.

6. The injection mold for an outer casing body of claim 4, wherein the lateral slide assembly further comprises a third slide molding member, the third slide molding member comprises a slide molding block, and when the front mold core is buckled with the rear mold core, the second molding groove, the second molding boss and the slide molding block together form a second molding cavity of the buckle.

7. The injection mold for the outer shell according to claim 6, wherein the third sliding forming member further comprises a guide block, a guide slide rail and a third guide rod, the guide block is disposed on the front mold plate, the guide slide rail is disposed on the rear mold plate, the sliding forming block is slidably connected with the guide slide rail, one end of the third guide rod is disposed on the guide block, and the third guide rod is slidably disposed on the sliding forming block.

8. The injection mold for the outer shell according to any one of claims 1 to 7, wherein the front mold assembly further comprises a front mold limiting block, the front mold limiting block is disposed on one side of the front mold plate close to the front mold core, and one side surface of the front mold limiting block abuts against one side surface of the front mold core.

9. The injection mold for an outer shell according to claim 8, wherein the rear mold assembly further comprises a rear mold limiting block, the rear mold limiting block is disposed on one side of the rear mold plate close to the rear mold core, one side of the rear mold limiting block abuts against one side of the rear mold core, and the rear mold limiting block and the front mold limiting block are aligned.

10. The injection mold for an outer shell according to any one of claims 1-7, further comprising a longitudinal stripper assembly coupled to the back mold assembly, the longitudinal stripper assembly configured to push the shell and the clip to move away from the back mold core.

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