CN211279513U - Precision mold convenient to maintain - Google Patents
Precision mold convenient to maintain Download PDFInfo
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- CN211279513U CN211279513U CN201921188174.XU CN201921188174U CN211279513U CN 211279513 U CN211279513 U CN 211279513U CN 201921188174 U CN201921188174 U CN 201921188174U CN 211279513 U CN211279513 U CN 211279513U
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Abstract
The utility model discloses an accurate mould convenient to maintenance uses in the injection mold field, has solved traditional injection mold product die cavity and has directly seted up on front mould and back mould, need change whole front mould or back mould after the product die cavity damages, the higher technical problem of cost, and its technical scheme main points are: comprises a front template, a rear template, a front mold core and a rear mold core; the front mold core is detachably connected with a front mold forming insert, and the rear mold core is detachably connected with a rear mold forming insert; forming cavities are formed in the opposite side faces of the front die forming insert and the rear die forming insert; the front template is provided with a glue inlet, the front mold core is provided with a main runner, one side of the front mold core facing the rear mold core is provided with a sub-runner communicated with the main runner, the front mold molding insert is provided with a molding runner communicated with the sub-runner, and the molding runner is communicated with the molding cavity; the mold has the technical effects that when the molding cavity is damaged, only the insert part needs to be replaced, the whole scrapped mold core is avoided, and the cost is saved.
Description
Technical Field
The utility model relates to an injection mold field, in particular to precision mold convenient to maintenance.
Background
At present, chinese utility model patent that bulletin number is CN207059139U discloses an injection mold, include and draw together front mould and back mould, the front mould with be equipped with the product die cavity between the back mould, install bullet top mechanism in the front mould, bullet top mechanism includes bullet fore-set, the terminal surface of bullet fore-set with the front mould constitutes jointly the product die cavity is located the chamber wall of front mould side, bullet fore-set is kept away from the end fixing of product die cavity has bullet footstock, be fixed with on the bullet footstock with the back mould forms the needle that resets of leaning on the broken face, bullet footstock keeps away from one side of product die cavity with install the elastic component between the front mould, the flexible direction of elastic component with the direction of motion of back mould is unanimous.
Although the injection mold can be used for injection molding of products, the product cavity is directly formed in the front mold and the rear mold, but the product cavity is easy to damage, so that the whole front mold or the whole rear mold needs to be replaced after the product cavity is damaged, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an accurate mould convenient to maintenance, its advantage is with the shaping chamber setting on front mould shaping mold insert and back mould shaping mold insert, when the shaping chamber takes place to damage, only need change the mold insert part can, saved the mould repair time, also avoided scrapping of monoblock mould benevolence to the cost has been saved.
The above technical purpose of the present invention can be achieved by the following technical solutions: a precision mould convenient for maintenance comprises a front template, a rear template, a front mould core arranged on the front template and a rear mould core arranged on the rear template;
the front mold core is detachably connected with at least one front mold forming insert, and the rear mold core is detachably connected with at least one rear mold forming insert; forming cavities are formed in the opposite side faces of the front die forming insert and the rear die forming insert;
the front mold insert is provided with a molding runner communicated with the sprue, and the molding runner is communicated with the molding cavity.
According to the technical scheme, the front template is used for mounting a front mold core, the rear template is used for mounting a rear mold core, the glue inlet is aligned with the glue outlet on the injection molding machine, the main runner and the sub-runner are used for guiding molten plastic to flow into the molding runner, the molding runner is used for guiding the molten plastic into the molding cavity, and the molding cavities on the front mold molding insert and the rear mold molding insert are used for molding products; the front mold forming insert and the rear mold forming insert can be conveniently detached from the front mold core and the rear mold core, so that when the forming cavity is partially damaged, only the front mold forming insert or the rear mold forming insert needs to be replaced, the whole mold core is prevented from being replaced or maintained, the cost is saved well, the front mold forming insert or the rear mold forming insert is replaced more quickly, and the maintenance time is saved.
The utility model discloses further set up to: the front mold insert is provided with a front mold accommodating hole for accommodating a front mold molding insert, one side of the front mold insert, which is far away from the rear mold insert, is provided with a front mold limiting groove communicated with the front mold accommodating hole, and a front mold limiting block extends on the front mold molding insert; one side of the front mold limiting block is attached to the bottom of the limiting groove, and the other side of the front mold limiting block is attached to the front mold plate.
According to the technical scheme, the front mold accommodating hole is used for accommodating a front mold forming insert, and the front mold limiting groove is used for placing the front mold limiting block; the bottom of the limiting groove is attached to one side of the front mold limiting block, and the front template is attached to the other side of the front mold limiting block, so that the front mold forming insert is stably and firmly connected with the front mold core; thereby when having guaranteed the product shaping, the stability of mould, and then better avoid the front mould shaping mold insert to take place to collide with and cause the damage.
The utility model discloses further set up to: the front mould accommodating hole is a square hole, a transition arc is arranged at the joint of the side wall of the front mould accommodating hole, and a clearance inclined plane is arranged at the transition arc position of the front mould forming insert.
By the technical scheme, the transition arc well avoids the stress concentration at a sharp corner from cracking, so that the service life of the front mold core is prolonged; the clearance slope is used for avoiding the interference between the front mold forming insert and the transition arc, so that the assembly is easier, only the front mold forming insert is matched with the straight edge of the front mold accommodating hole, and the matching precision of the front mold forming insert and the front mold accommodating hole is higher; and the processing of the straight edge is easier than that of the circular arc, and the processing cost is better saved.
The utility model discloses further set up to: the rear die forming insert is composed of a left insert, a middle insert and a right insert which are sequentially attached, a polishing layer is arranged on the surface where the left insert and the middle insert are attached to each other, and a polishing layer is arranged on the surface where the middle insert and the right insert are attached to each other.
By the technical scheme, the rear die forming insert is split into the left insert, the middle insert and the right insert, so that when a forming cavity is damaged, the number of parts needing to be replaced is less, and the cost is further saved; the polishing layer enables the left insert and the middle insert, the middle insert and the right insert to be attached more tightly, so that glue leakage is avoided during product molding, and the quality of product molding is guaranteed.
The utility model discloses further set up to: the sub-channel is communicated with a sub-flow cold material groove, the forming channel is communicated with a forming cold material groove, and the sub-flow cold material groove is communicated with the forming cold material groove.
By the technical scheme, when a product is molded, the partially cooled plastic is pushed into the shunting cold trough or the molding cold trough by the molten plastic, so that the cooled plastic is better prevented from entering the molding cavity, and the quality of the product is ensured; the cold silo of reposition of redundant personnel and the cold silo intercommunication of shaping make the product shaping back, and the runner waste material can be linked into a whole to product and waste material can be more complete take off from the mould during subsequent drawing of patterns, have improved production efficiency.
The utility model discloses further set up to: the mold comprises a front mold core and a rear mold core, and is characterized in that cooling water paths are arranged in the front mold core and the rear mold core, water inlet channels communicated with the cooling water paths are arranged on the front mold plate and the rear mold plate, and water outlet channels communicated with the cooling water paths are arranged on the front mold plate and the rear mold plate.
Through the technical scheme, the water inlet channel is used for supplying cooling water to enter the cooling water channel, the water outlet channel is used for discharging water with heat, the cooling water channel enables the cooling water to be in contact with the front mold core and the rear mold core more, so that more heat on the front mold core and the rear mold core is taken away, the mold is prevented from being overheated and deformed, and the damage of the mold is avoided.
The utility model discloses further set up to: the positioning block is arranged on one side of the front mold core facing the rear mold core, and the positioning groove is arranged on one side of the rear mold core facing the front mold core.
Through the technical scheme, when the mold is closed, the positioning block is inserted into the positioning groove before the front mold core and the rear mold core are attached, and the front mold core and the rear mold core are better guided to be matched, so that the matching precision of the front mold core and the rear mold core is higher, and the front mold core and the rear mold core are prevented from being misplaced, collided and damaged.
The utility model discloses further set up to: the rear die is characterized in that a rear die accommodating cavity for placing a rear die core is formed in the rear die plate, a fool-proof arc surface is arranged at one corner of the rear die core, and a matching arc surface matched with the fool-proof arc surface is arranged in the rear die accommodating cavity.
Through above-mentioned technical scheme, only when preventing slow-witted cambered surface and cooperation cambered surface and corresponding, the back mould benevolence just can be put into the back mould and hold the chamber to guaranteed the installation that back mould benevolence and back template can be accurate.
The utility model discloses further set up to: the rear die plate is provided with a clearance groove for avoiding corners of the rear die core, and the clearance groove is communicated with the rear die accommodating cavity.
Through the technical scheme, the clearance groove avoids the interference between the corner of the rear die core and the corner of the rear die accommodating cavity, so that the rear die core can be mounted in the rear die accommodating cavity more conveniently and quickly.
To sum up, the utility model discloses following beneficial effect has:
1. the front die forming insert and the rear die forming insert are respectively detachably arranged on the front die core and the rear die core, so that when a formed part is damaged, only the front die forming insert and the rear die forming insert need to be replaced, the replacement of the integral die core part is avoided, and the cost is better saved;
2. the front mold limiting block on the front mold forming insert is matched with the front mold limiting groove, so that the front mold forming insert is more stable to be connected with the front mold core, and the stability of product forming is guaranteed.
Drawings
Fig. 1 is an overall configuration diagram of the present embodiment;
FIG. 2 is a schematic structural view showing the upper and lower molds of the present embodiment in a separated state;
FIG. 3 is a schematic structural diagram illustrating a connection relationship between a front mold insert and a front mold core according to the present embodiment;
fig. 4 is a schematic view of the structure of the rear mold insert of the present embodiment;
fig. 5 is an enlarged schematic view of a portion a of fig. 2.
Reference numerals: 1. a front template; 2. a rear template; 3. a front mold core; 4. a rear mold core; 5. forming the insert by a front mold; 6. forming the insert by a rear die; 7. a molding cavity; 8. a glue inlet; 9. a main flow channel; 10. a shunt channel; 11. molding a flow channel; 12. a front mold receiving hole; 13. a front mold limiting groove; 14. a front mold limiting block; 15. a transition arc; 16. an empty-avoiding inclined plane; 17. a left insert; 18. a middle insert; 19. a right insert; 20. a polishing layer; 21. a flow-dividing cold material groove; 22. forming a cold trough; 23. a cooling water path; 24. a water inlet channel; 25. a water outlet channel; 26. positioning blocks; 27. positioning a groove; 28. a rear mold receiving cavity; 29. a fool-proof arc surface; 30. matching with the cambered surface; 31. an empty avoiding groove; 32. a front mold receiving cavity; 33. a rear mold receiving hole; 34. and a rear die limiting groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
referring to fig. 1 and 2, a precision mold for easy maintenance includes a front mold plate 1 and a rear mold plate 2; a front mold accommodating cavity 32 is formed in one side, facing the rear mold plate 2, of the front mold plate 1, a front mold core 3 is placed in the front mold accommodating cavity 32, and the front mold core 3 is connected with the front mold plate 1 through bolts; a rear mold accommodating cavity 28 is formed in one side, facing the front mold plate 1, of the rear mold plate 2, a rear mold core 4 is placed in the rear mold accommodating cavity 28, and the rear mold core 4 is connected with the rear mold plate 2 through bolts; one corner of the rear mold core 4 and one corner of the front mold core 3 are both provided with foolproof cambered surfaces 29, and the rear mold accommodating cavity 28 and the front mold accommodating cavity 32 are both provided with matched cambered surfaces 30 matched with the foolproof cambered surfaces 29; when the front mold insert 3 is placed in the front mold accommodating cavity 32, the other three corners of the front mold insert 1 are arranged in the clearance grooves 31 except for the fit between the fool-proof arc surface 29 and the fit arc surface 30; the other three angles that back template 2 is located back mould and holds chamber 28 all are equipped with clearance groove 31, and when back mould benevolence 4 was placed back mould and is held chamber 28, except that prevent slow-witted cambered surface 29 and cooperation cambered surface 30 cooperation, other three angles all set up in clearance groove 31.
Referring to fig. 2 and 3, eight front mold forming inserts 5 are detachably connected to the front mold core 3, eight front mold receiving holes 12 are formed in the front mold core 3, the eight front mold receiving holes 12 are arranged in two rows and four rows, and a front mold limiting groove 13 communicated with the front mold receiving holes 12 is formed in one side of the front mold core 3 away from the rear mold core 4; the front mold forming insert 5 is inserted into the front mold accommodating hole 12, and a front mold limiting block 14 extends from the front mold forming insert 5 at the front mold limiting groove 13; one side of the front mold limiting block 14 is attached to the bottom of the front mold limiting groove 13, and the other side is attached to the inner wall of the front mold accommodating cavity 32, so that the front mold forming insert 5 is stably locked on the front mold core 3. The front mold accommodating hole 12 is a square hole, a transition arc 15 is arranged at the connecting part of the side wall of the front mold accommodating hole 12, and a clearance inclined plane 16 is arranged at the transition arc 15 of the front mold forming insert 5; when the front mold insert 5 is placed in the front mold receiving hole 12, the four sidewalls of the front mold insert 5 are attached to the four planar sidewalls of the front mold receiving hole 12.
Referring to fig. 3 and 4, eight rear mold forming inserts 6 are detachably connected to the rear mold core 4, eight rear mold receiving holes 33 are formed in the rear mold core 4, the eight rear mold receiving holes 33 are arranged in two rows and four rows, and a rear mold limiting groove 34 communicated with the rear mold receiving holes 33 is formed in one side of the rear mold core 4 away from the front mold core 3; the rear mold receiving holes 33 of the rear mold core 4 are positioned in one-to-one correspondence with the front mold receiving holes 12, and the rear mold insert 6 is mounted to the rear mold core 4 in the same manner as the front mold insert 5 is mounted to the front mold core 3. The rear die forming insert 6 is composed of a left insert 17, a middle insert 18 and a right insert 19 which are sequentially attached, a polishing layer 20 is arranged on the surface where the left insert 17 and the middle insert 18 are attached to each other, a polishing layer 20 is arranged on the surface where the middle insert 18 and the right insert 19 are attached to each other, the left insert 17, the middle insert 18 and the right insert 19 are attached to each other through the polishing layer 20, and the situation that glue leaks is well avoided.
Referring to fig. 1 and 2, four cooling water paths 23 are respectively formed in the front mold core 3 and the rear mold core 4, the four cooling water paths 23 are respectively arranged in parallel on the front mold core 3 and the rear mold core 4, and the cooling water paths 23 are not communicated with the front mold accommodating hole 12 to prevent cooling water from leaking; the front template 1 and the rear template 2 are respectively provided with a water inlet channel 24 and a water outlet channel 25 which are communicated with the corresponding cooling water channels 23, and the water inlet channel 24 and the water outlet channel 25 are respectively arranged at two ends of the cooling water channels 23.
Referring to fig. 2, a positioning block 26 is disposed on a side of the front mold core 3 facing the rear mold core 4, and a positioning groove 27 complementary to the positioning block 26 is disposed on a side of the rear mold core 4 facing the front mold core 3; when the mold is closed, the positioning block 26 is inserted into the positioning groove 27 before the front mold core 3 and the rear mold core 4 are attached, so that the front mold core 3 and the rear mold core 4 can be matched more accurately.
Referring to fig. 2 and 5, the opposite side surfaces of the front mold forming insert 5 and the rear mold forming insert 6 are both provided with a forming cavity 7 for forming a product, the middle position of the front mold plate 1 is provided with a glue inlet 8 (refer to fig. 1), the glue inlet 8 is arranged in a penetrating manner along the thickness direction of the front mold plate 1, and the middle position of the front mold core 3 is provided with a main runner 9 communicated with the glue inlet 8; a sub-runner 10 communicated with the main runner 9 is arranged on one side of the front mold core 3 facing the rear mold core 4, a molding runner 11 communicated with the molding cavity 7 is arranged on the front mold molding insert 5, and the molding runner 11 is communicated with the sub-runner 10. The branch channel 10 is communicated with a branch cold trough 21, the forming channel 11 is communicated with a forming cold trough 22, and the branch cold trough 21 is communicated with the forming cold trough 22.
The working process is briefly described as follows:
1. after the mold is closed, the injection molding machine injects the molten plastic into the main runner 9 from the glue inlet 8;
2. the molten plastic enters a molding runner 11 along a sub-runner 10 under the driving of injection pressure and then enters a molding cavity 7;
3. meanwhile, cooling water enters the cooling water from the water inlet channel 24 and then flows out from the water outlet channel 25 with heat, so that the front mold core 3 and the rear mold core 4 are cooled, and a product is molded in the re-molding cavity 7.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (9)
1. A precision mould convenient for maintenance comprises a front template (1), a rear template (2), a front mould core (3) arranged on the front template (1) and a rear mould core (4) arranged on the rear template (2);
the mold is characterized in that at least one front mold forming insert (5) is detachably connected to the front mold core (3), and at least one rear mold forming insert (6) is detachably connected to the rear mold core (4); forming cavities (7) are formed in the opposite side surfaces of the front die forming insert (5) and the rear die forming insert (6);
the front mold is characterized in that a glue inlet (8) is formed in the front mold plate (1), a main runner (9) communicated with the glue inlet (8) is formed in the front mold core (3), a sub-runner (10) communicated with the main runner (9) is formed in one side, facing the rear mold core (4), of the front mold core (3), a forming runner (11) communicated with the sub-runner (10) is formed in the front mold forming insert (5), and the forming runner (11) is communicated with the forming cavity (7).
2. The precision mold convenient to maintain as claimed in claim 1, wherein the front mold core (3) is provided with a front mold accommodating hole (12) for accommodating the front mold molding insert (5), one side of the front mold core (3) away from the rear mold core (4) is provided with a front mold limiting groove (13) communicated with the front mold accommodating hole (12), and the front mold molding insert (5) is extended with a front mold limiting block (14); one side of the front mold limiting block (14) is attached to the bottom of the limiting groove, and the other side of the front mold limiting block is attached to the front mold plate (1).
3. The precision mold convenient to maintain as claimed in claim 2, wherein the front mold accommodating hole (12) is a square hole, a transition arc (15) is arranged at the joint of the side wall of the front mold accommodating hole (12), and an air-clearance bevel (16) is arranged at the transition arc (15) of the front mold molding insert (5).
4. The precision mold convenient to maintain as claimed in claim 1, wherein the rear mold forming insert (6) is composed of a left insert (17), a middle insert (18) and a right insert (19) which are sequentially attached, polishing layers (20) are respectively arranged on the surfaces of the left insert (17) and the middle insert (18) which are attached to each other, and polishing layers (20) are respectively arranged on the surfaces of the middle insert (18) and the right insert (19) which are attached to each other.
5. The precision mold convenient to maintain as claimed in claim 1, characterized in that the branch channel (10) is communicated with a branch cold channel (21), the molding channel (11) is communicated with a molding cold channel (22), and the branch cold channel (21) is communicated with the molding cold channel (22).
6. The precision mold convenient to maintain as claimed in claim 1, wherein the front mold core (3) and the rear mold core (4) are both provided with cooling water channels (23), the front mold plate (1) and the rear mold plate (2) are both provided with water inlet channels (24) communicated with the cooling water channels (23), and the front mold plate (1) and the rear mold plate (2) are both provided with water outlet channels (25) communicated with the cooling water channels (23).
7. The precision mold convenient for maintenance according to claim 1, wherein a positioning block (26) is disposed on one side of the front mold core (3) facing the rear mold core (4), and a positioning groove (27) is disposed on one side of the rear mold core (4) facing the front mold core (3).
8. The precision mold convenient to maintain as claimed in claim 1, wherein the rear mold plate (2) is provided with a rear mold accommodating cavity (28) for placing the rear mold core (4), one corner of the rear mold core (4) is provided with a fool-proof cambered surface (29), and the rear mold accommodating cavity (28) is provided with a matching cambered surface (30) matched with the fool-proof cambered surface (29).
9. The precision mold convenient to maintain as claimed in claim 8, wherein the rear mold plate (2) is provided with a clearance groove (31) for avoiding the corner of the rear mold core (4), and the clearance groove (31) is communicated with the rear mold accommodating cavity (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921188174.XU CN211279513U (en) | 2019-07-26 | 2019-07-26 | Precision mold convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921188174.XU CN211279513U (en) | 2019-07-26 | 2019-07-26 | Precision mold convenient to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211279513U true CN211279513U (en) | 2020-08-18 |
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ID=72013420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921188174.XU Active CN211279513U (en) | 2019-07-26 | 2019-07-26 | Precision mold convenient to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211279513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654671A (en) * | 2022-03-07 | 2022-06-24 | 浙江凯华模具有限公司 | Inserted die |
-
2019
- 2019-07-26 CN CN201921188174.XU patent/CN211279513U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654671A (en) * | 2022-03-07 | 2022-06-24 | 浙江凯华模具有限公司 | Inserted die |
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