Die for preventing hardware shell from being crushed

Abstract

The utility model discloses a mould for preventing a hardware shell from being crushed, which relates to the field of injection molding and comprises a mould core, a mould strip, an insert and a deformation element, the mould core is concavely provided with a glue injection channel, a second pouring gate, a sliding chute, a groove, a cavity and a cable accommodating groove, the cable accommodating groove, the cavity, the groove and the sliding chute are communicated in sequence, the mould strip is arranged in the sliding chute in a sliding manner, and the insert is arranged in the mould strip. The two ends of the insert are arranged in the groove and the inserting groove respectively, the deformation element is clamped between the insert and the bottom of the inserting groove, third runners are arranged on the two sides of each cavity, a connector containing groove is formed in the center of the insert, a first pouring gate is arranged in the insert, and the glue injection channel and the second pouring gate are connected to the two ends of the third runners respectively. One end of the first sprue communicates with one end of the cavity, the other end of the first sprue communicates with the glue injection channel, and the second sprue communicates with the other end of the cavity. And the injection molding operation is completed on one set of mold at one time through the four glue feeding points. The relative positions of the insert and the mold strip can be finely adjusted, so that the poor exposure of the product can be prevented.

Description

Technical Field

[0001] The utility model relates to the field of injection molding, in particular to a mold for preventing the metal shell from being bruised. Background Art

[0002] At the present stage, when injection molding a CABLE plug with an aluminum shell, generally 4 injection molding processes are required: injecting the inner mold - injecting the first outer mold - sleeving the aluminum shell - injecting the SR outer mold. During injection molding, the metal aluminum shell on the TYPE-C connector needs to be horizontally inserted into the groove inside the movable insert in advance, and the cable needs to be clamped inside the groove on the mold core.

[0003] Affected by the processing accuracy, there are certain tolerances for the metal aluminum shells on the TYPE-C connectors. When the upper tolerance of the length of the metal aluminum shell is on the long side, the injection molded parts will have bruising problems. When the lower tolerance of the length of the metal aluminum shell is on the short side, the injection molded parts will have flash and glue punching problems. When the upper tolerance of the appearance size of the metal aluminum shell is on the large side, the injection molded parts will have bruising problems. The problem of the dimensional tolerance of the aluminum shell will cause bruising or flash phenomena, resulting in product rework and increasing the manufacturing cost.

[0004] The purpose of the utility model is to provide a mold for preventing the metal shell from being bruised, so as to solve the problems of bruising or flash caused by the dimensional tolerance of the aluminum shell. Content of the Utility Model

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A mold for preventing the metal shell from being bruised, comprising: a mold core, a mold bar, an insert and a deformation element. The mold core is recessed with a glue injection channel, a second gate, a chute, a groove, a cavity and a cable receiving groove. The groove, the cavity and the cable receiving groove are all arranged at intervals along the extension direction of the chute. The cable receiving groove, the cavity, the groove and the chute are communicated in sequence. The mold bar is slidably arranged in the chute. The mold bar is provided with slots corresponding to the cavities one by one. Both ends of each insert are respectively arranged inside the groove and the slot. The deformation element is clamped between the insert and the bottom of the slot. The upper end surface of the mold bar is provided with a first runner. The end surface of the mold bar close to the cavity is provided with a second runner. Both sides of each cavity are provided with a third runner. The first runner, the second runner and the third runner are communicated in sequence. The center position of the end surface of the insert away from the deformation element is provided with a connector receiving groove. Inside the insert, first gates are arranged on both sides of the connector receiving groove. The two first gates are symmetrically arranged. The glue injection channel and the second gate are respectively connected to both ends of the third runner. The glue injection channel is distributed between the cavity and the third runner. The second gate is distributed between the groove and the third runner. One end of the first gate is communicated with one end of the cavity close to the chute. The other end of the first gate is communicated with the glue injection channel. The second gate is communicated with the other end of the cavity away from the chute.

[0006] Preferably, the insert includes a first block and a second block. One end of the first block is provided with a first step groove, the second block is slidably disposed in the first step groove, and the height of the first block is less than the depth of the step groove.

[0007] Preferably, the insert further includes a spring pin and a first spring arranged coaxially. The two ends of the spring pin respectively penetrate through the first block and the second block. The first block and the second block are both provided with first positioning grooves, and the two ends of the first spring respectively abut in the two first positioning grooves.

[0008] Preferably, the deformation element is clamped between the first member and the bottom of the slot, and the deformation element is polyurethane rubber.

[0009] Preferably, the injection channel gradually narrows in the direction away from the first gate, the first gate gradually narrows in the direction close to the connector receiving groove, and the center line of the injection channel is bent in an arc shape.

[0010] Preferably, the second gate gradually narrows in the direction close to the cavity, the center line of the second gate bends in the direction away from the cable receiving groove, and the center line of the second gate is bent in an arc shape.

[0011] Preferably, one end of the chute away from the cavity is provided with a first inclined surface, one end of the die bar is symmetrically provided with a second inclined surface, the first inclined surface is matched with the second inclined surface, and the upper end of the first inclined surface is inclined in the direction away from the cavity.

[0012] Preferably, one end of the end face of the second block away from the first block and away from the cavity is provided with a third step groove, and the upper end of the connector receiving groove is arranged in the third step groove.

[0013] Preferably, the mold core includes a mold core body and a fixing seat. The fixing seat is detachably arranged at one end of the mold core body. One end of the fixing seat is provided with a second step groove, the first inclined surface is arranged on the inner wall of the second step groove, and the chute is formed between the second step groove and the end face of the mold core body.

[0014] Preferably, the mold core further includes a long screw and a second spring arranged coaxially. The long screw penetrates through the fixing seat and is threadedly connected to the mold core body. The mold core body and the fixing seat are both provided with second positioning grooves, and the two ends of the second spring respectively abut inside the two second positioning grooves.

[0015] The working principle of the present utility model is as follows: Polyurethane rubber is arranged between the rear end of the insert and the die bar, and the polyurethane rubber has the ability of elastic deformation. When the insert is subjected to pressure, it will move towards the inside of the slot, achieving the effect of expanding the product cavity and solving the problem of overlong tolerance and bruising in the length of the hardware aluminum shell.

[0016] The second block can be slidably arranged in the first step groove at the end of the first block. The relative positions of the first block and the second block that form the insert can be finely adjusted, thereby changing the size of the cross-section of the connector receiving groove. This solves the problem of bruising caused by dimensional tolerances in the hardware connector.

[0017] The relative position between the fixed seat and the mold core body can be finely adjusted. When the lower tolerance of the length of the hardware aluminum shell is short, the distance between the fixed seat and the cavity can be shortened, and the relative position between the insert and the cavity can be changed. The product cavity can be shortened, and the phenomena of flash and glue punching can be improved.

[0018] The beneficial effects of the present utility model are as follows: During injection molding, the aluminum shell is located in the mold cavity, and four gate points are arranged at the front and rear four ends of the cavity. The injection molding operation is completed at one time on a set of molds through the four gate points. The relative positions of the insert and the mold bar can be finely adjusted, which can prevent the aluminum shell from being bruised and prevent the product from being exposed poorly. Description of the Drawings

[0019] The drawings further illustrate the present utility model, but the embodiments in the drawings do not constitute any limitation to the present utility model.

[0020] Figure 1 Is a three-dimensional view of a mold for preventing bruising of a hardware shell provided by an embodiment of the present utility model;

[0021] Figure 2 Is a structural schematic diagram of a mold for preventing bruising of a hardware shell provided by an embodiment of the present utility model;

[0022] Figure 3 Is Figure 2 The partial enlarged view of part B in

[0023] Figure 4 Is a structural schematic diagram of an insert provided by an embodiment of the present utility model;

[0024] Figure 5 Is a structural schematic diagram of the first block provided by an embodiment of the present utility model;

[0025] Figure 6 Is a structural schematic diagram of the second block provided by an embodiment of the present utility model.

[0026] Reference numerals: 1: mold core; 2: mold bar; 3: insert; 4: deformation element; 11: mold core body; 12: fixed seat; 31: first block; 32: second block. Detailed Description of the Embodiment

[0027] The following further details the specific embodiments of the present utility model with reference to the drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present utility model, and are not used to limit the present utility model.

[0028] It should be noted that in the present utility model, unless otherwise stated, when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The orientation terms such as "upper, lower, left, and right" generally refer to the upper, lower, left, and right as shown in Figure 1 the figure. "Inner and outer" refer to the inner and outer of the specific contour. "Far and near" refer to the far and near relative to a certain component.

[0029] As Figures 1-6 shown in the figure, a mold for preventing the metal shell from being crushed provided by an embodiment of the present utility model includes: a mold core 1, a mold bar 2, an insert 3, and a deformation element 4. The mold core 1 is recessed with a glue injection channel, a second gate, a chute, a groove, a cavity, and a cable accommodation groove. The groove, the cavity, and the cable accommodation groove are all arranged at intervals along the extension direction of the chute. The cable accommodation groove, the cavity, the groove, and the chute are sequentially communicated. The mold bar 2 is slidably disposed in the chute. The mold bar 2 is provided with slots corresponding to the cavities one by one. Both ends of each insert 3 are respectively disposed inside the groove and the slot. The deformation element 4 is clamped between the insert 3 and the bottom of the slot. The upper end surface of the mold bar 2 is provided with a first runner. The end surface of the mold bar 2 close to the cavity is provided with a second runner. Both sides of each cavity are provided with a third runner. The first runner, the second runner, and the third runner are sequentially communicated. The center position of the end surface of the insert 3 away from the deformation element 4 is provided with a connector accommodation groove. Both sides of the connector accommodation groove inside the insert 3 are provided with a first gate. The two first gates are symmetrically arranged. The glue injection channel and the second gate are respectively connected to both ends of the third runner. The glue injection channel is distributed between the cavity and the third runner. The second gate is distributed between the groove and the third runner. One end of the first gate is communicated with one end of the cavity close to the chute. The other end of the first gate is communicated with the glue injection channel. The second gate is communicated with the end of the cavity away from the chute.

[0030] The insert 3 includes a first block 31 and a second block 32. One end of the first block 31 is provided with a first step groove. The second block 32 is slidably disposed in the first step groove. The height of the first block 31 is less than the depth of the step groove.

[0031] The insert 3 further includes a spring pin and a first spring arranged coaxially. Both ends of the spring pin penetrate through the first block 31 and the second block 32 respectively. The first block 31 and the second block 32 are both provided with a first positioning groove. Both ends of the first spring respectively abut against the two first positioning grooves.

[0032] The deformation element 4 is clamped between the first member and the bottom of the slot, and the deformation element 4 is polyurethane rubber.

[0033] The glue injection channel gradually narrows in the direction away from the first gate, the first gate gradually narrows in the direction close to the connector receiving groove, and the center line of the glue injection channel is bent in an arc shape.

[0034] The second gate gradually narrows in the direction close to the cavity, the center line of the second gate bends in the direction away from the cable receiving groove, and the center line of the second gate is bent in an arc shape.

[0035] One end of the chute away from the cavity is provided with a first inclined surface, one end of the die bar 2 is symmetrically provided with a second inclined surface, the first inclined surface cooperates with the second inclined surface, and the upper end of the first inclined surface inclines in the direction away from the cavity.

[0036] One end of the end face of the second block 32 away from the first block 31 and away from the cavity is provided with a third step groove, and the upper end of the connector receiving groove is arranged in the third step groove.

[0037] The mold core 1 includes a mold core body 11 and a fixing seat 12. The fixing seat 12 is detachably arranged at one end of the mold core body 11. One end of the fixing seat 12 is provided with a second step groove, the first inclined surface is arranged on the inner wall of the second step groove, and the chute is formed between the second step groove and the end face of the mold core body 11.

[0038] The mold core 1 further includes a long screw and a second spring arranged coaxially. The long screw penetrates through the fixing seat 12, the long screw is threadedly connected to the mold core body 11, second positioning grooves are formed in both the mold core body 11 and the fixing seat 12, and both ends of the second spring respectively abut against the interiors of the two second positioning grooves.

[0039] First flow channels are arranged on both the upper and lower end faces of the die bar 2. The cavity includes a first cavity and a second cavity. The first cavity and the second cavity are arranged alternately, and the distances between adjacent first cavities, the distances between adjacent second cavities, and the distances between adjacent slots are equal.

[0040] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these should all be regarded as falling within the scope recorded in this specification.

Claims

1. A mold for preventing bruising of a hardware shell, characterized in that: Comprising: A mold core, mold bars, inserts and deformation elements. The mold core is recessed with a glue injection channel, a second gate, a chute, a groove, a cavity and a cable accommodation groove. The groove, the cavity and the cable accommodation groove are arranged at intervals along the extension direction of the chute. The cable accommodation groove, the cavity, the groove and the chute are communicated in sequence. The mold bar is slidably arranged in the chute. The mold bar is provided with slots corresponding to the cavities one by one. Both ends of each insert are respectively arranged inside the groove and the slot. The deformation element is clamped between the insert and the bottom of the slot. The upper end surface of the mold bar is provided with a first runner. The end surface of the mold bar close to the cavity is provided with a second runner. Both sides of each cavity are provided with a third runner. The first runner, the second runner and the third runner are communicated in sequence. A connector accommodation groove is arranged at the center position of the end surface of the insert far from the deformation element. First gates are arranged on both sides of the connector accommodation groove inside the insert. The glue injection channel and the second gate are respectively connected to both ends of the third runner. One end of the first gate is communicated with one end of the cavity close to the chute. The other end of the first gate is communicated with the glue injection channel. The second gate is communicated with the end of the cavity far from the chute.

2. The mold for preventing bruising of the hardware housing according to claim 1, wherein: The insert includes a first block and a second block. One end of the first block is provided with a first step groove. The second block is slidably arranged in the first step groove. The height of the first block is less than the depth of the step groove.

3. The mold for preventing the hardware shell from being bruised according to claim 2, wherein: The insert further includes a spring pin and a first spring arranged coaxially. Both ends of the spring pin respectively penetrate through the first block and the second block. The first block and the second block are both provided with first positioning grooves. Both ends of the first spring respectively abut against the two first positioning grooves.

4. The mold for preventing the metal shell from being bruised according to claim 2, wherein: The deformation element is clamped between the first component and the bottom of the slot. The deformation element is polyurethane rubber.

5. The mold for preventing the metal shell from being crushed according to claim 1, wherein: The glue injection channel gradually narrows in the direction away from the first gate. The first gate gradually narrows in the direction close to the connector accommodation groove. The center line of the glue injection channel is bent in an arc shape.

6. The mold for preventing the hardware shell from being bruised according to claim 1, wherein: The second gate gradually narrows in the direction close to the cavity. The center line of the second gate bends in the direction away from the cable accommodation groove. The center line of the second gate is bent in an arc shape.

7. The mold for preventing hardware shell from being bruised according to claim 1, wherein: One end of the chute far from the cavity is provided with a first inclined surface. One end of the mold bar is symmetrically provided with a second inclined surface. The first inclined surface and the second inclined surface cooperate. The upper end of the first inclined surface inclines in the direction away from the cavity.

8. The mold for preventing bruised metal hardware housings according to claim 3, wherein: One end of the end surface of the second block far from the first block and far from the cavity is provided with a third step groove. The upper end of the connector accommodation groove is arranged in the third step groove.

9. The mold for preventing the metal housing from being bruised according to claim 7, wherein: The mold core includes a mold core body and a fixing seat. The fixing seat is detachably arranged at one end of the mold core body. One end of the fixing seat is provided with a second step groove. The first inclined surface is arranged on the inner wall of the second step groove. The second step groove and the end surface of the mold core body form the chute.

10. The mold for preventing the metal housing from being bruised according to claim 9, characterized in that: The mold core further includes a long screw and a second spring arranged coaxially. The long screw penetrates through the fixing seat. The long screw is threadedly connected to the mold core body. The mold core body and the fixing seat are both provided with second positioning grooves. Both ends of the second spring respectively abut against the two second positioning grooves.

Images