Mold capable of conveniently clamping injection molding nozzle

Abstract

The utility model relates to the technical field of molds, in particular to a mold convenient for clamping an injection molding mouth, a clamping part is arranged above the injection molding mouth and is fixedly connected with a movable mold part, the clamping part comprises a top plug, a clamping ring and a plurality of clamping lock groups, the top plug is movably arranged at the top of the clamping ring, the clamping lock groups are all arranged on the side wall of the clamping ring, and the clamping lock groups are fixedly connected with the clamping part. An injection molding nozzle of an injection molding machine is inserted into the clamping ring and can axially slide along the side wall of the clamping ring, when the clamping lock set slides towards the injection molding nozzle, the injection molding nozzle is clamped in the clamping ring, and when the clamping lock set slides away from the injection molding nozzle, the clamping lock set loses the clamping effect on the injection molding nozzle, and the injection molding nozzle can be pulled out of the clamping ring; when the injection molding nozzle is used, the column head completely retracts into the hole channel, the feeding channel is opened, the injection molding nozzle can be conveniently taken out, the injection molding nozzle is clamped above the injection molding opening through the clamping part, feeding is conducted in a mold, workers do not need to hold the injection molding nozzle all the time, the working intensity of the workers is reduced, and meanwhile potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold for conveniently clamping an injection nozzle. Background Art

[0002] Metal injection molding (MIM) is a process that leverages the vast capabilities of injection molding to create structural metal parts. Unlike thermoplastic molding, where molded parts are typically the final product, MIM parts must subsequently undergo heat treatment to remove the polymer and sinter to create a dense structural component. Both thermoplastic and MIM processes utilize temperature and pressure to form components, resulting in similarities in the science of shape formation. MIM offers numerous advantages, including the ability to produce complex geometries. Any product that can be formed using an injection mold can also be produced using MIM, offering a high degree of geometric design freedom. MIM is also suitable for high-volume production, with a typical production cycle of 5-7 days, enabling continuous supply after each cycle. Daily production can range from a few hundred to hundreds of thousands, depending on demand. The high density of MIM products offers excellent material properties, approaching those of sheet metal, making them particularly suitable for parts with specific performance requirements.

[0003] When feeding the metal injection molding molds commonly used on the market, it is necessary to manually hold the injection nozzle of the injection molding machine to prevent the injection nozzle from falling off from the injection port, which not only increases the workers' workload but also poses a safety hazard. Utility Model Content

[0004] The main purpose of the utility model is to provide a mold for conveniently clamping an injection nozzle, so as to solve the problem in the related art that the injection nozzle needs to be manually held during feeding.

[0005] To achieve the above object, according to one aspect of the present invention, a mold for conveniently clamping an injection nozzle is provided, comprising: a fixed mold portion, the fixed mold portion being located below the mold and providing half of the mold;

[0006] A movable mold portion, the movable mold portion being connected to the top of the fixed mold portion by bolts, the movable mold portion providing half of the model, and when the movable mold portion and the fixed mold portion are combined, a complete model can be provided;

[0007] An injection port, which is located at the top of the movable mold portion and through which injection material is added into the mold;

[0008] The clamping part is arranged above the injection port and is fixedly connected to the movable mold part. The clamping part includes a top plug, a clamping ring and a plurality of locking groups. The top plug is movably arranged at the top of the clamping ring. The locking groups are all arranged on the side walls of the clamping ring and can slide axially along the side walls of the clamping ring. The injection nozzle of the injection molding machine is inserted into the clamping ring to feed the material to the injection port. When the locking group slides toward the injection nozzle, the injection nozzle is clamped in the clamping ring. When the locking group slides away from the injection nozzle, the locking group loses its clamping effect on the injection nozzle, and the injection nozzle can be pulled out from the clamping ring.

[0009] Furthermore, a feed channel and a plurality of clamping grooves are provided in the clamping ring. The feed channel is coaxially arranged inside the clamping ring, and the injection nozzle feeds material to the injection port through the feed channel.

[0010] Furthermore, the clamping groove includes a limiting groove, a channel and an outer hole, and the channel is axially penetrated and arranged on the side wall of the clamping ring.

[0011] Furthermore, the outer hole is provided at the end of the channel, the limiting groove is provided outside the outer hole, and the limiting groove includes a plurality of branch grooves.

[0012] Furthermore, the locking group includes a transverse column group, a reset group and a rotation group. The transverse column group includes a card column, a column head and a plurality of convex ribs. The card column is arranged in the channel and can slide back and forth along the channel. The column head is fixedly arranged at the end of the card column. The upper surface of the column head is an inclined surface, and the convex ribs are all fixedly arranged on the inclined surface of the column head.

[0013] Furthermore, the reset group includes a first circular ring, a spring and a second circular ring. The first circular ring is fixed to the outer ring of the clamping column and can slide back and forth along the channel.

[0014] Furthermore, the second ring is fixed in the outer hole and can slide back and forth along the clamping column. The spring is sleeved on the outer ring of the clamping column and is located between the first ring and the second ring. One end of the spring is fixedly connected to the first ring, and the other end is fixedly connected to the second ring.

[0015] Furthermore, the rotation group includes a limit block and a knob, the limit block is fixed at the end of the clamping column, the limit block includes a plurality of support blocks, the number of the support blocks is equal to the number of the support grooves and the shape is the same, and the knob is fixed on the outside of the limit block.

[0016] Furthermore, the fixed mold part includes a fixed mold body, a bottom plate, a counterweight plate and several buffers. The counterweight plate is fixedly arranged above the bottom plate. The bottom ends of the buffers are fixedly connected to the top surface of the counterweight plate, and the top ends are fixedly connected to the bottom surface of the fixed mold body.

[0017] Furthermore, the movable mold part includes a movable mold body, a pressure plate and a top plate, the pressure plate is fixedly arranged at the bottom of the top plate, and the movable mold body is fixedly arranged at the bottom of the pressure plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects: the spring contracts, pushing the clamping column toward the injection nozzle, so that the column head is tightly squeezed outside the injection nozzle, the inclined column head increases the contact surface with the injection nozzle, and together with the convex ribs increases the friction coefficient between the injection nozzle and the column head, thereby strengthening the clamping capacity of the clamping part, preventing the injection nozzle from falling off from the feed channel during the feeding process, thereby affecting the injection progress; after the feeding is completed, hold the knob and pull it outward, the first ring squeezes the spring and contracts it, and the clamping column and the limit block move outward along with the knob When the limit block is out of the limit groove, turn the knob and the limit block will rotate with the knob. When the limit block is misaligned with the limit groove, stop turning the knob and release it. The limit block is restricted outside the clamping ring and the column head is retracted into the channel. According to the same method, all the remaining column heads are retracted into the channel. The feed channel is opened, making it convenient to take out the injection nozzle. The clamping part clamps the injection nozzle above the injection port and feeds the material into the mold. The worker does not need to hold the injection nozzle all the time, which reduces the worker's work intensity and eliminates safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model;

[0021] Figure 3 This is an overall schematic diagram of the clamping part of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the clamping ring of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the lock assembly of the utility model.

[0024] Illustration:

[0025] 1. Fixed mold; 11. Fixed mold body; 12. Bottom plate; 13. Counterweight plate; 14. Buffer;

[0026] 2. Moving mold part; 21. Moving mold body; 22. Pressure plate; 23. Top plate;

[0027] 3. Clamping portion; 31. Clamping ring; 32. Locking assembly; 33. Top plug; 311. Feed channel; 312. Limiting groove; 313. Hole; 314. External hole; 321. Clamping column; 322. Column head; 323. Rib; 324. First ring; 325. Spring; 326. Second ring; 327. Limiting block; 328. Knob;

[0028] 4. Injection port. DETAILED DESCRIPTION

[0029] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0030] See also Figures 1 to 5 , this embodiment provides a mold for conveniently clamping an injection nozzle, comprising: a fixed mold part 1, the fixed mold part 1 is located below the mold, and the fixed mold part 1 provides half of the model;

[0031] The movable mold part 2 is connected to the top of the fixed mold part 1 by bolts. The movable mold part 2 provides half of the model. When the movable mold part 2 and the fixed mold part 1 are combined, a complete model can be provided;

[0032] Injection port 4, which is located at the top of the movable mold part 2, through which the injection material is added into the mold;

[0033] The clamping part 3 is arranged above the injection port 4 and is fixedly connected to the movable mold part 2. The clamping part 3 includes a top plug 33, a clamping ring 31 and a plurality of locking groups 32. The top plug 33 is movably arranged at the top of the clamping ring 31 and is located at the top of the feed channel 311. The locking groups 32 are all arranged on the side walls of the clamping ring 31 and can slide axially along the side walls of the clamping ring 31. The injection nozzle of the injection molding machine is inserted into the clamping ring 31 to feed the injection port 4. When the locking group 32 slides toward the injection nozzle, the injection nozzle is clamped in the clamping ring 31. When the locking group 32 slides away from the injection nozzle, the locking group 32 loses its clamping effect on the injection nozzle, and the injection nozzle can be pulled out from the clamping ring 31.

[0034] A feed channel 311 and several clamping grooves are provided in the clamping ring 31. In this embodiment, four clamping grooves are preferably used to clamp the injection nozzle from different directions to enhance the clamping ability of the injection nozzle. The feed channel 311 is coaxially arranged inside the clamping ring 31, and the injection nozzle feeds the material to the injection port 4 through the feed channel 311.

[0035] The clamping groove includes a limiting groove 312 , a channel 313 and an outer hole 314 . The channel 313 is axially penetrated through the side wall of the clamping ring 31 .

[0036] The outer hole 314 is provided at the end of the channel 313 , and the limiting groove 312 is provided outside the outer hole 314 . The limiting groove 312 includes a plurality of branch grooves. In this embodiment, four branch grooves are preferably provided to enhance the limiting effect on the limiting block 327 .

[0037] The locking group 32 includes a cross column group, a reset group and a rotation group. The cross column group includes a clamping column 321, a column head 322 and a plurality of convex ribs 323. The clamping column 321 is arranged in the channel 313 and can slide back and forth along the channel 313. The column head 322 is fixedly arranged at the end of the clamping column 321. The upper surface of the column head 322 is inclined, which increases the contact surface with the injection nozzle. Together with the convex ribs 323, it increases the friction coefficient between the injection nozzle and the column head 322, strengthens the clamping ability of the clamping part 3, and prevents the injection nozzle from falling off from the feed channel 311 during feeding, affecting the injection molding progress. The convex ribs 323 are all fixedly arranged on the inclined surface of the column head 322.

[0038] The reset assembly includes a first ring 324 , a spring 325 and a second ring 326 . The first ring 324 is fixed to the outer ring of the clamping column 321 and can slide back and forth along the channel 313 .

[0039] The second ring 326 is fixed in the outer hole 314 and can slide back and forth along the clamping column 321. The spring 325 is sleeved on the outer ring of the clamping column 321 and is located between the first ring 324 and the second ring 326. One end of the spring 325 is fixedly connected to the first ring 324, and the other end is fixedly connected to the second ring 326. When the knob 328 is pulled outward, the first ring 324 squeezes the spring 325 to shrink it. When the knob 328 is released, the spring 325 returns to its original position, pushing the clamping column 321 into the feed channel 311 through the first ring 324 to clamp the injection nozzle.

[0040] The rotation group includes a limit block 327 and a knob 328. The limit block 327 is fixed at the end of the clamping column 321. The limit block 327 includes a plurality of support blocks. The number of support blocks is equal to the number of support slots and the same shape. When the limit block 327 is located in the limit slot 312, the clamping column 321 extends into the feed channel 311 and can clamp the injection nozzle. When the limit block 327 is pulled out of the limit slot 312, the clamping column 321 retracts into the channel 313 and loses its clamping effect on the injection nozzle. The knob 328 is fixed on the outside of the limit block 327.

[0041] The fixed mold part 1 includes a fixed mold body 11, a bottom plate 12, a counterweight plate 13 and several buffers 14. The counterweight plate 13 is fixedly arranged above the bottom plate 12. The bottom ends of the buffers 14 are fixedly connected to the top surface of the counterweight plate 13, and the top ends are fixedly connected to the bottom surface of the fixed mold body 11. The counterweight plate 13 increases the weight of the fixed mold part 1, enhances its stability and prevents it from tipping over. The buffers 14 buffer the pressure of the movable mold part 2 to prevent the fixed mold part 1 from being crushed.

[0042] The movable mold part 2 includes a movable mold body 21, a pressure plate 22 and a top plate 23. The pressure plate 22 is fixed to the bottom of the top plate 23, and the movable mold body 21 is fixed to the bottom of the pressure plate 22. The pressure plate 22 and the top plate 23 increase the weight of the movable mold body 21 and increase the pressure on the model.

[0043] After the material is fed into the mold, the cam 324 is pushed outwards and the cam 325 is pulled outwards to push the material into the mold. When the locking cam 327 is in the closed position, the locking cam 327 is in the closed position, and the locking cam 327 is in the closed position, and the locking cam 327 is in the closed position, and the locking cam 327 is in the closed position, and the locking cam 327 is in the closed position, and the locking cam 327 is in the closed position, and the locking cam 327 is in the closed position, and the locking cam 327 is in the closed position, and the locking cam 327 is in the closed position, and the locking cam 327 is in the closed position, and the locking cam 327 is in the closed position, and the locking cam 327 is in the closed position,

[0044] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A mold for conveniently clamping an injection nozzle, characterized in that: include: A fixed mold part (1), the fixed mold part (1) is located below the mold, and the fixed mold part (1) provides half of the model; A movable mold part (2), the movable mold part (2) being connected to the top of the fixed mold part (1) by bolts, the movable mold part (2) providing half of the model, and providing a complete model when the movable mold part (2) and the fixed mold part (1) are combined; An injection port (4), the injection port (4) being provided at the top of the movable mold portion (2), and injection material being added into the mold through the injection port (4); The clamping part (3) is arranged above the injection port (4) and is fixedly connected to the movable mold part (2). The clamping part (3) includes a top plug (33), a clamping ring (31) and a plurality of locking groups (32). The top plug (33) is movably arranged at the top of the clamping ring (31). The locking groups (32) are all arranged on the side wall of the clamping ring (31) and can slide axially along the side wall of the clamping ring (31). The injection nozzle of the injection molding machine is inserted into the clamping ring (31) to feed the material to the injection port (4). When the locking group (32) slides toward the injection nozzle, the injection nozzle is clamped in the clamping ring (31). When the locking group (32) slides away from the injection nozzle, the locking group (32) loses its clamping effect on the injection nozzle, and the injection nozzle can be pulled out of the clamping ring (31).

2. The mold for conveniently clamping an injection nozzle according to claim 1, characterized in that: A feeding channel (311) and a plurality of clamping grooves are provided in the clamping ring (31), and the feeding channel (311) is coaxially arranged inside the clamping ring (31), and the injection nozzle feeds material to the injection port (4) through the feeding channel (311).

3. The mold for conveniently clamping an injection nozzle according to claim 2, characterized in that: The clamping groove comprises a limiting groove (312), a hole (313) and an outer hole (314); the hole (313) is axially penetrated and provided on the side wall of the clamping ring (31).

4. The mold for conveniently clamping an injection nozzle according to claim 3, characterized in that: The outer hole (314) is provided at the end of the channel (313), the limiting groove (312) is provided outside the outer hole (314), and the limiting groove (312) includes a plurality of branch grooves.

5. The mold for conveniently clamping an injection nozzle according to claim 4, characterized in that: The locking group (32) includes a transverse column group, a reset group, and a rotation group. The transverse column group includes a clamping column (321), a column head (322), and a plurality of convex ribs (323). The clamping column (321) is arranged in the hole (313) and can slide back and forth along the hole (313). The column head (322) is fixedly arranged at the end of the clamping column (321). The upper surface of the column head (322) is an inclined surface. The convex ribs (323) are all fixedly arranged on the inclined surface of the column head (322).

6. The mold for conveniently clamping an injection nozzle according to claim 5, characterized in that: The reset group comprises a first circular ring (324), a spring (325) and a second circular ring (326), wherein the first circular ring (324) is fixedly arranged on the outer ring of the clamping column (321), and the first circular ring (324) can slide back and forth along the channel (313).

7. The mold for conveniently clamping an injection nozzle according to claim 6, characterized in that: The second circular ring (326) is fixedly disposed in the outer hole (314) and can slide back and forth along the clamping column (321). The spring (325) is sleeved on the outer ring of the clamping column (321) and is located between the first circular ring (324) and the second circular ring (326). One end of the spring (325) is fixedly connected to the first circular ring (324), and the other end is fixedly connected to the second circular ring (326).

8. The mold for conveniently clamping an injection nozzle according to claim 5, characterized in that: The rotation group comprises a limit block (327) and a knob (328), wherein the limit block (327) is fixedly arranged at the end of the clamping column (321), the limit block (327) comprises a plurality of support blocks, the number of the support blocks being equal to the number of the support slots and the shape being the same, and the knob (328) being fixedly arranged at the outside of the limit block (327).

9. The mold for conveniently clamping an injection nozzle according to claim 1, characterized in that: The fixed mold part (1) comprises a fixed mold body (11), a bottom plate (12), a counterweight plate (13) and a plurality of buffers (14). The counterweight plate (13) is fixedly arranged above the bottom plate (12). The bottom ends of the buffers (14) are fixedly connected to the top surface of the counterweight plate (13), and the top ends are fixedly connected to the bottom surface of the fixed mold body (11).

10. The mold for conveniently clamping an injection nozzle according to claim 1, characterized in that: The movable mold part (2) comprises a movable mold body (21), a pressure plate (22) and a top plate (23); the pressure plate (22) is fixedly arranged at the bottom of the top plate (23); and the movable mold body (21) is fixedly arranged at the bottom of the pressure plate (22).

Images