CN218171208U - Sprue cutting die for shell type workpiece - Google Patents
Sprue cutting die for shell type workpiece Download PDFInfo
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- CN218171208U CN218171208U CN202222363066.XU CN202222363066U CN218171208U CN 218171208 U CN218171208 U CN 218171208U CN 202222363066 U CN202222363066 U CN 202222363066U CN 218171208 U CN218171208 U CN 218171208U
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- gate
- gate cutting
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Abstract
The utility model discloses a runner cuts off mould for casing class work piece, include: the cover half subassembly and with the movable mould subassembly that the cover half subassembly meets, the cover half subassembly includes the fixed die plate, be equipped with the feeding channel groove in the fixed die plate, the movable mould subassembly include with the movable mould board that the fixed die plate meets with locate the mould benevolence of movable mould board, set up the die cavity that the symmetry set up on the mould benevolence, be equipped with the notch plate between the die cavity that the symmetry set up, set up the sprue gate of symmetry in the notch plate, the bottom seted up in the notch plate with the sprue gate of symmetry the splitter box that the feeding channel groove meets, the outer both sides of notch plate are equipped with sprue gate respectively and cut off the boss, sprue gate cuts off the boss both sides and still are equipped with non-sprue gate respectively and cut off the boss, still be equipped with the ejecting disconnected pole of sprue gate on the movable mould board, the spill plate part with the fixed die plate meets. Through the mode, the complete cutting of the gate is realized.
Description
Technical Field
The utility model relates to an injection mold technical field especially relates to a runner cuts off mould for casing class work piece.
Background
In the injection mold, the injection mold with the side gate is widely applied, and the side gate has a simple structure, is easy to process, has good fluidity of melted plastic and small pressure loss, so the injection mold with the side gate becomes the injection molding equipment commonly adopted in the industry.
In the process of realizing the prior art, the inventor finds that:
in the conventional side gate injection mold, after molding and ejection, a workpiece and a solidified material are connected, and at this time, an excessive part needs to be removed manually or separated by a separation device. Get rid of through the manual work consuming time longer and break away from the work piece qualification rate after low, need additionally purchase the device when breaking away from the device, increase solitary cutting process, increase personnel selection demand and extra cost, and because the problem of location, cutting device can bring the secondary damage of work piece, can arouse the problem that the qualification rate of work piece is low equally.
Therefore, a side gate cutting die for improving the cutting qualification rate of the workpiece needs to be provided to solve the technical problem of low cutting qualification rate of the formed workpiece in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves is the technical problem who solves among the prior art forming workpiece cut off the qualification rate low.
In order to solve the technical problem, the utility model discloses a technical scheme be:
provided is a gate cutting die for a housing-like workpiece, including: including the cover half subassembly and with the cover half subassembly meets, is located the movable mould subassembly of cover half subassembly bottom, the cover half subassembly includes the fixed die plate, be equipped with the feeding channel groove in the fixed die plate, the movable mould subassembly include with the movable mould board that the fixed die plate meets with locate the movable mould board is close to the mould benevolence of the terminal surface of fixed die plate, set up the die cavity that the symmetry set up on the mould benevolence, be equipped with the concave plate between the die cavity that the symmetry set up, the sprue gate of symmetry is seted up respectively to both sides in the concave plate and bottom contact part in the concave plate, the bottom set up in the concave plate with the sprue gate of symmetry the sprue gate the splitter box that the feeding channel groove meets, the outer both sides of concave plate are equipped with the sprue gate corresponding with the sprue gate respectively and cut off the boss, sprue gate cuts off boss both sides and still is equipped with non-sprue gate respectively and cuts off the boss, still be equipped with on the movable mould board with sprue gate cuts off that the boss terminal surface meets, be less than the sprue gate ejecting cutting off the pole, the spill plate portion with the fixed die plate meets.
In a preferred embodiment of the present invention, symmetrical pouring openings are respectively opened on both sides of the concave plate and the bottom contact portion of the concave plate, and the method specifically includes:
the cross section of the pouring port in the center vertical to the end surfaces of the two sides in the concave plate and the end surface of the bottom of the concave plate is in a trapezoidal shape;
the lower bottom of the trapezoid shape is positioned in the concave plate.
In a preferred embodiment of the present invention, the end surface of the dividing channel formed at the bottom of the concave plate is further provided with an inverted conical hole corresponding to the position of the feeding channel groove.
In a preferred embodiment of the present invention, a positioning block assembly for determining the positions of the fixed die plate and the movable die plate is further disposed between the fixed die plate and the movable die plate;
the fixed die plate is provided with a groove positioning block, and the movable die plate is provided with a boss positioning block connected with the groove positioning block.
In a preferred embodiment of the present invention, the outer sides of the concave plate are respectively provided with a sprue gate cutting boss corresponding to the sprue gate, and the method specifically includes:
the sprue gate cutting boss is lower than the end face, close to the movable template, of the fixed template and extends towards two sides of the cross section perpendicular to the centers of the end faces of the two sides in the concave plate and the end face of the bottom of the concave plate.
In a preferred embodiment of the present invention, the sprue cutting boss is further provided with non-sprue cutting bosses on both sides thereof, which specifically includes:
the non-pouring gate cutting boss is lower than the pouring gate and higher than the end face of the pouring gate cutting boss by a preset distance.
In a preferred embodiment of the present invention, the predetermined distance is 0.1mm to 0.3mm.
In a preferred embodiment of the present invention, the material of the sprue ejection cutting-off rod is SKH51 high-speed steel.
In a preferred embodiment of the present invention, the top of the concave plate is further provided with an insert block at a position corresponding to the concave plate; the insert is detachably connected to the fixed die plate.
The beneficial effects of the utility model are that: through the sprue cutting die for the shell type workpiece, redundant solidified materials in the formed workpiece can be completely cut off and separated, the qualified rate of the workpiece is improved, and the cost of the workpiece is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of a gate cutting mold 100 for a casing workpiece according to the present invention;
FIG. 2 is a schematic structural view of a preferred embodiment of the cross-section of the present invention according to position A in FIG. 1;
FIG. 3 is a schematic structural view of a preferred embodiment of the concave plate of the present invention;
FIG. 4 is a schematic view of another preferred embodiment of the concave plate of the present invention; the parts in the drawings are numbered as follows: a gate cutting mold-100 for a case type workpiece; a fixed die assembly-1; fixing a template-10; a cover plate-11; feed channel slot-101; a movable mold component-2; moving template-20; a substrate-21; a mold core-201; a cavity-202; a concave plate-203; sprue gate-2031; a shunt trough-2032; cutting off a boss-2033 at the sprue gate; non-sprue cut boss-2034; the cutting rod-2035 is ejected out of the pouring gate; inverted taper hole-2036; arc table-2037; a positioning block assembly-3; a groove positioning block-31; a boss positioning block-32; an insert-4;
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Please refer to fig. 1 to 4, the utility model provides a sprue cut-off mold 100 for casing class work piece, including cover half subassembly 1 and with the movable mould subassembly 2 that cover half subassembly 1 meets, is located cover half subassembly 1 bottom, its characterized in that, cover half subassembly 1 includes fixed die plate 10, be equipped with feed channel groove 101 in the fixed die plate 10, movable mould subassembly 2 include with the movable mould board 20 that fixed die plate 10 meets with locate movable mould board 20 is close to the mould benevolence 201 of the terminal surface of fixed die plate 10, set up the die cavity 202 that the symmetry set up on the mould benevolence 201, be equipped with concave plate 203 between the die cavity 202 that the symmetry set up, the sprue 2031 of symmetry is seted up respectively to bottom contact part in both sides and the concave plate 203 in the concave plate 203, the bottom set up with the sprue 2031 of symmetry in the concave plate 203 the sprue subchannel, the outer both sides of concave plate 203 are equipped with the sprue 2033 boss that cuts off corresponding with sprue 2031 respectively, the sprue 2033 both sides still are equipped with non-arranged on the sprue 2033, the sprue 2035 the sprue plate meets with the sprue 2035 the ejector plate end face of the sprue 2031.
Specifically, the gate cutting mold 100 for a housing-like workpiece provided by the present application is mainly used for cutting a gate of the housing-like workpiece. The shell type workpiece can be specifically a shell of a flat panel device or a shell with the thickness of 0.1mm to 8mm in other devices.
The fixed mold assembly 1 may specifically include a fixed mold plate 10 and a plurality of cover plates 11 covering the fixed mold plate 10 for connecting the fixed mold plate 10. It will be understood that the stationary platen 10 is provided with the feed passage groove 101, and the corresponding position on the cover plate 11 connected to the stationary platen 10 is also provided with the feed passage groove 101 connected to the stationary platen 10.
The movable mold assembly 2 may include a movable mold plate 20 connected to the fixed mold plate 10 and a plurality of base plates 21 disposed below the movable mold plate 20. A mold core 201 for molding a workpiece is arranged in the movable mold plate 20, a mold cavity 202 for molding the workpiece is arranged in the mold core 201, and a molded workpiece is generated by injecting a casting material into the mold cavity 202.
It should be further noted that a plurality of positioning rods are disposed between the fixed mold plate 10, the cover plates 11 connected to the fixed mold plate 10, the movable mold plate 20, and the base plates 21 connected to the movable mold plate 20, so as to ensure that the fixed mold plate 10 and the movable mold plate 20 are not displaced when the fixed mold plate 10 and the movable mold plate 20 are closed.
A sprue gate cutting boss 2033 corresponding to the sprue gate 2031 is respectively arranged on each of the two outer sides of the concave plate 203, a non-sprue gate cutting boss 2034 is further respectively arranged on each of the two sides of the sprue gate cutting boss 2033, and a sprue gate ejection cutting rod 2035 which is connected with the end face of the sprue gate cutting boss 2033 and is lower than the sprue gate 2031 is further arranged on the movable die plate 20. It will be understood that gate cut protrusion 2033, i.e., the end surface of gate cut protrusion 2033 outside of concave plate 203, is a cut surface for cutting off gate 2031 casting material. The sprue ejection cutting rod 2035 means that the end surface of the sprue ejection cutting rod 2035 connected to the end surface of the sprue cutting boss 2033 is another cut surface for cutting the sprue casting material, and the sprue ejection cutting rod 2035 ejects the sprue ejection cutting rod 2035, so that the cut surface of the sprue cutting boss 2033 and the other cut surface of the sprue ejection cutting rod 2035 cut the casting material, and further cut off the gate. The sprue ejection cutting-off rod 2035 is made of SKH51 high-speed steel, that is, the sprue ejection cutting-off rod 2035 is made of SKH51 high-speed steel and contacts with the end surface of the sprue cutting boss 2033 of the concave plate 203 during ejection, so as to cut off the casting material of the sprue 2031.
In a preferred embodiment provided by the present application, symmetrical pouring ports 2031 are respectively opened at contact portions of two inner sides of the concave plate 203 and a bottom portion of the concave plate 203, and specifically include: the cross section of the pouring gate 2031 perpendicular to the end surfaces of the two sides in the concave plate 203 and the center of the end surface of the bottom of the concave plate 203 is trapezoidal; the lower base of the trapezoidal shape is located within the concave plate 203.
It should be noted that providing gate 2031 with a trapezoidal shape facilitates cutting of the workpiece after it is formed. In a preferred embodiment provided by the present application, the lower base of the cross section of the trapezoidal shape, which may be a trapezoidal shape, is located inside the concave plate 203, the upper base of the trapezoidal shape is located outside the concave plate 203, and the edge line of the lower end point of the upper base and the lower end point of the lower base of the trapezoidal shape and the bottom line of the cross section of the diversion trench 2032 perpendicular to the end surfaces of the two sides inside the concave plate 203 and the center of the end surface of the bottom of the concave plate 203 form an obtuse angle.
As shown in fig. 4, in a preferred embodiment provided by the present application, symmetrical pouring ports 2031 are respectively formed at portions of two inner sides of the concave plate 203, which contact with the bottom of the concave plate 203, and the pouring ports 2031 may also be a combination of an arc-shaped spherical surface close to the inside of the concave plate 203 and a sector-shaped surface close to the outside of the concave plate 203, and the sector-shaped surface is joined to the arc-shaped spherical surface and inclined at a certain angle.
In a preferred embodiment provided by the present application, an inverted conical hole 2036 corresponding to the position 101 of the feeding channel groove is further provided on the end surface of the diversion groove 2032 opened at the bottom inside the concave plate 203.
It should be noted that, when the sprue ejection cutting-off rod 2035 is ejected for cutting, if the inverted conical hole 2036 is not provided on the end surface of the diversion channel 2032 formed in the bottom of the concave plate 203, when the molded workpiece is subjected to sprue cutting, the side of the sprue non-molded workpiece also moves in the ejection direction of the sprue ejection cutting-off rod 2035 from the sprue 2031, which is not favorable for cutting. After the inverted conical hole 2036 is formed in the end surface of the diversion trench 2032 formed in the concave plate 203 and provided at the bottom, after the pouring is completed, the inverted conical hole 2036 is filled with the aggregate, and when the molded workpiece on one side of the gate 2031 moves in the ejection direction of the gate ejection cutting bar 2035, the inverted conical hole 2036 on one side of the non-molded workpiece on the gate 2031 is filled with the aggregate, so that the non-molded workpiece on one side of the gate 2031 does not move in the ejection direction of the gate ejection cutting bar 2035, and the gate is cut off.
As shown in fig. 4, in a preferred embodiment provided by the present application, an arc-shaped platform 2037 perpendicular to the centerline of the diversion channel 2032 and lower than the end surface of the bottom of the concave plate 203 may be further disposed on the end surface of the diversion channel 2032 opened at the bottom inside the concave plate 203. It will be appreciated that the provision of the arcuate shelf 2037 may allow for some pre-deformation of the castable material within the runner 2032 due to the presence of the arcuate shelf 2037 when the molded workpiece is sprue gated off.
In a preferred embodiment provided by the present application, a positioning block assembly 3 for determining the positions of the fixed die plate 10 and the movable die plate 20 is further disposed between the fixed die plate 10 and the movable die plate 20; the fixed die plate 10 is provided with a groove positioning block 31, and the movable die plate 20 is provided with a boss positioning block 32 connected with the groove positioning block 31.
Specifically, besides being positioned by a plurality of positioning rods arranged between the fixed die assembly 1 and the movable die assembly 2, the fixed die assembly 1 and the movable die assembly 2 can be secondarily positioned by the positioning assemblies, so that the accuracy of the position of the die for opening and closing the die is ensured. Specifically, a plurality of groove positioning blocks 31 are arranged at a plurality of predetermined positions of the fixed die plate 10, a plurality of boss positioning blocks 32 are arranged at a plurality of positions of the groove positioning blocks 31 of the fixed die plate 10 on the movable die plate 20, and secondary positioning of the die is realized through combination of the groove positioning blocks 31 and the boss positioning blocks 32. It should be further noted that the recess positioning block 31 of the fixed die plate 10 and the boss positioning block 32 of the movable die plate 20 are detachably connected to the fixed die plate 10 and the movable die plate 20, respectively.
In a preferred embodiment provided by the present application, the outer two sides of the concave plate 203 are respectively provided with a gate cutting boss 2033 corresponding to the gate 2031, and specifically include: the sprue cutting boss 2033 is lower than the end surface of the fixed die plate 10 close to the movable die plate 20, and extends in the direction of two sides of the cross section perpendicular to the centers of the end surfaces of two inner sides of the concave plate 203 and the end surface of the bottom of the concave plate 203.
Lower than the end surface of the fixed mold plate 10 close to the movable mold plate 20, it can be understood that when the pouring gate 2031 is cut off, the molded workpiece is located between the fixed mold plate 10 and the movable mold plate 20, so that the pouring gate can be cut off only by being lower than the end surface of the fixed mold plate 10, and the pouring gate cutting boss 2033 does not need to be arranged to be as high as the upper end surface of the concave plate 203.
The sprue cutting boss 2033 extends in the direction perpendicular to the two side end faces in the concave plate 203 and the two side directions of the cross section of the center of the end face at the bottom of the concave plate 203, that is, a groove is correspondingly formed at the position of the molded workpiece corresponding to the sprue cutting boss 2033, and the end face of the workpiece connected with the groove still keeps the original shape of the workpiece, so that the influence of the groove on the functionality of the workpiece is reduced as much as possible.
In a preferred embodiment provided by the present application, the sprue cutting protrusion 2033 is further provided with non-sprue cutting protrusions 2034 on two sides thereof, specifically including: the non-gate cut off boss 2034 is located lower than the gate 2031 and a predetermined distance above the end face of the gate cut off boss 2033.
Specifically, the specific distance that non-gate cutting off boss 2034 is below gate 2031 may be determined by the thickness of the molded workpiece. For example, if the thickness of the molded workpiece is 0.6mm and gate 2031 is provided at the center of the molded workpiece, the specific distance that non-gate cutting boss 2034 is below gate 2031 may be 0.3mm.
The non-gate cutting protrusion 2034 is higher than the end surface of the gate cutting protrusion 2033 by a predetermined distance, and it is understood that the gate cutting protrusion 2033 is a groove on the outer side of the concave plate 203. And the sprue ejection cutting-off rod 2035 is connected to the end face of the sprue cutting-off boss 2033, which can be understood as a groove of the sprue ejection cutting-off rod 2035 located outside the concave plate 203.
It can be understood that when the gate cutting is required for the molding of the workpiece, the groove of the sprue ejection cutting-off rod 2035 on the outer side of the concave plate 203 moves toward the fixed mold plate 10, and since the groove of the concave plate 203 is also the end surface of the sprue cutting-off table, the relative movement between the sprue ejection cutting-off rod 2035 and the end surface of the sprue cutting-off table realizes the cutting-off of the casting material.
In a preferred embodiment provided by the present application, the predetermined distance from the non-gate cutting boss 2034 to the end surface of the gate cutting boss 2033 is 0.1mm to 0.3mm, and after many experiments, when the predetermined distance from the non-gate cutting boss 2034 to the end surface of the gate cutting boss 2033 is 0.1mm to 0.3mm, the gate cutting of the molded workpiece is most satisfactory. In a preferred embodiment provided herein, non-gate cut off boss 2034 is preferably located a predetermined distance of 0.2mm above the end face of gate cut off boss 2033.
In a preferred embodiment provided by the present application, the top of the concave plate 203 is further provided with an insert 4 at a position corresponding to the top; the insert 4 is detachably connected to the fixed die plate 10.
It can be understood that the die is often damaged inevitably during the process of cutting off a gate or other processes during the process of forming a workpiece, the subsequent maintenance is often increased in maintenance cost, and the insert 4 is arranged at the top of the concave plate 203 corresponding to the top of the concave plate, so that the die can be detached and replaced when the position of the insert 4 is damaged during the use process without replacing parts in a large range.
It should also be noted that the concave plate 203 is also frequently damaged when the molding gate of the daily mold is cut off, so that the concave block is also detachably connected to the mold core 201, and when the concave block needs to be replaced, only the concave block needs to be detached and replaced.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. The utility model provides a runner cuts off mould for casing class work piece, including the cover half subassembly and with the cover half subassembly meets, is located the movable mould subassembly of cover half subassembly bottom, its characterized in that, the cover half subassembly includes the fixed die plate, be equipped with the feed channel groove in the fixed die plate, the movable mould subassembly include with the movable mould board that the fixed die plate meets with locate the movable mould board is close to the mould benevolence of the terminal surface of fixed die plate, set up the die cavity that the symmetry set up on the mould benevolence, be equipped with the notch plate between the die cavity that the symmetry set up, the sprue gate of symmetry is seted up respectively to both sides in the notch plate and the bottom contact part in the notch plate, the bottom set up with the sprue gate of symmetry, the splitter box that the feed channel groove meets, the outer both sides of notch plate are equipped with sprue gate cutting off the boss corresponding with the sprue gate respectively, sprue gate cutting off boss both sides still are equipped with non-sprue gate cutting off the boss respectively, still be equipped with on the movable mould board with sprue gate cutting off the boss terminal surface, be less than the sprue gate cutting off pole that the position, the notch plate portion boss meets with the fixed die plate meets.
2. The gate cutting mold for the shell-like workpiece according to claim 1, wherein symmetrical gates are respectively formed at contact portions of two inner sides of the concave plate and the bottom of the concave plate, and the gate cutting mold specifically comprises:
the cross section of the pouring port in the center vertical to the end surfaces of the two sides in the concave plate and the end surface of the bottom of the concave plate is in a trapezoidal shape;
the lower bottom of the trapezoid shape is positioned in the concave plate.
3. The gate cutting die for casing workpieces as set forth in claim 1, wherein the end surface of the splitter box formed in the concave plate at the bottom is further provided with an inverted conical hole corresponding to the position of the feed channel groove.
4. The gate cutting die for the shell type workpiece according to claim 1, wherein a positioning block assembly for determining the positions of the fixed die plate and the movable die plate is further arranged between the fixed die plate and the movable die plate;
the fixed die plate is provided with a groove positioning block, and the movable die plate is provided with a boss positioning block connected with the groove positioning block.
5. The gate cutting mold for the shell type workpiece according to claim 1, wherein the concave plate is provided with gate cutting bosses corresponding to the gates on two outer sides thereof, and the gate cutting mold specifically comprises:
the sprue gate cutting boss is lower than the end face, close to the movable template, of the fixed template and extends towards two sides of the cross section perpendicular to the centers of the end faces of the two sides in the concave plate and the end face of the bottom of the concave plate.
6. The gate cutting mold for the shell-like workpiece according to claim 1, wherein non-gate cutting bosses are further respectively provided on two sides of the gate cutting boss, and specifically comprises:
the non-pouring gate cutting boss is lower than the pouring gate and higher than the end face of the pouring gate cutting boss by a preset distance.
7. The gate cutting die for a housing-like workpiece according to claim 6, wherein the predetermined distance is 0.1mm to 0.3mm.
8. The gate cutting mold for a shell-like workpiece according to claim 1, wherein the material of the gate ejection cutting bar is SKH51 high-speed steel.
9. The gate cutting die for the shell type workpiece according to claim 1, wherein the concave plate top is further provided with inserts at positions corresponding to the concave plate top;
the insert is detachably connected to the fixed die plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222363066.XU CN218171208U (en) | 2022-09-06 | 2022-09-06 | Sprue cutting die for shell type workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222363066.XU CN218171208U (en) | 2022-09-06 | 2022-09-06 | Sprue cutting die for shell type workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218171208U true CN218171208U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222363066.XU Active CN218171208U (en) | 2022-09-06 | 2022-09-06 | Sprue cutting die for shell type workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218171208U (en) |
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2022
- 2022-09-06 CN CN202222363066.XU patent/CN218171208U/en active Active
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