A new mold structure

Abstract

The application discloses a novel mold structure, relates to the field of injection molds, and comprises a mold block one, one side of the mold block one is provided with a mold block two, a positioning mechanism is arranged between the mold block one and the mold block two, a plurality of uniformly distributed cooling holes are formed in the mold block one and the mold block two, and a product is arranged between the mold block one and the mold block two. The positioning mechanism is installed between the mold block one and the mold block two, the mold block one and the mold block two are limited by the positioning mechanism when the mold block one and the mold block two are combined, the state of the mold block one and the mold block two is observed by the positioning mechanism, the possibility that the mold block one and the mold block two are deviated when the mold block one and the mold block two are combined can be reduced, and the possibility that the mold block one and the mold block two are deviated can be found in time.

Description

Technical Field

[0001] This application relates to the field of injection molds, and in particular to a novel mold structure. Background Technology

[0002] Injection molds are steel "molds" used to produce plastic parts. Molten plastic is injected into the cavity of the mold under high pressure, like squeezing toothpaste. After cooling and hardening, the mold is opened to remove the molded product. One mold can repeatedly produce thousands of products with the same shape.

[0003] In the field of injection molding, the precision and stability of the mold structure directly affect the quality of the product. Traditional injection molds usually consist of two mold blocks. A mold clamping device presses mold block one and mold block two together to form a closed cavity for injecting molten material.

[0004] Traditional molds typically rely on guide pillars and bushings for mold closing and positioning. After long-term use, wear can easily lead to positioning deviations and misalignment during mold closing. This problem may cause defects such as flash and dimensional deviations in the product, increasing subsequent repair costs. Utility Model Content

[0005] The purpose of this application is to address the problem that traditional molds, as mentioned in the background art, typically rely on guide pillars and guide bushings for mold closing and positioning. After long-term use, wear can easily lead to positioning deviations and mold misalignment, which may cause defects such as flash and dimensional deviations in the product, increasing subsequent repair costs. This application provides a novel mold structure.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A novel mold structure includes a mold block one, a mold block two disposed on one side of the mold block one, two symmetrical mounting rods disposed on both the mold block one and the mold block two, several connecting rods fixed on the mounting rods, and the ends of the connecting rods away from the mounting rods being fixedly connected to the corresponding mold block one and mold block two, a positioning mechanism disposed between the mold block one and the mold block two, several evenly distributed cooling holes being opened on both the mold block one and the mold block two, and a product disposed between the mold block one and the mold block two.

[0008] By adopting the above technical solution, a positioning mechanism is installed between mold block one and mold block two. When mold block one and mold block two are merged, the positioning mechanism limits the position of mold block one and mold block two. At the same time, the positioning mechanism observes the state of mold block one and mold block two, thereby reducing the possibility of mold block one and mold block two shifting when they are merged, and also enabling timely detection of the possibility of mold block one and mold block two shifting.

[0009] Furthermore, the positioning mechanism includes four positioning blocks 1 that are symmetrically fixed in pairs on the mold block 1, four positioning blocks 2 that are symmetrically fixed in pairs on the mold block 2, two symmetrical limiting blocks that are fixed on the positioning blocks 2, and limiting grooves that correspond to the limiting blocks on the positioning blocks 1.

[0010] By adopting the above technical solution, when mold block one and mold block two are merged, the limiting groove on positioning block one and the limiting block on positioning block two are misaligned and aligned with each other, thereby reducing the possibility of misalignment between mold block one and mold block two.

[0011] Furthermore, the limiting block has an inclined surface one, and the inner wall of the limiting groove has an inclined surface two corresponding to the inclined surface one.

[0012] By adopting the above technical solution, when mold block one and mold block two are offset, or when there is an offset between mold block one and mold block two, the limiting block and the limiting groove are guided by the inclined surface one and the inclined surface two, so that the offset mold block one and mold block two can be easily adjusted.

[0013] Furthermore, a number of corresponding abutting teeth 1 are fixed on the side of mold block 1 near mold block 2, and a number of corresponding abutting teeth 2 are fixed on the side of mold block 2 near mold block 1.

[0014] By adopting the above technical solution, when mold block one and mold block two are in contact, the first contact tooth and the second contact tooth are in contact with each other, which makes it easy to observe the misalignment between the first contact tooth and the second contact tooth, judge the accuracy of mold block one and mold block two, and facilitate timely inspection and maintenance of mold block one and mold block two.

[0015] Furthermore, an abutment strip 1 is fixed on the side of mold block 1 near mold block 2, and an abutment strip 2 is fixed on the side of mold block 2 near mold block 1. Both the abutment strip 1 and the abutment strip 2 correspond to the edge of the product.

[0016] By adopting the above technical solution, the first contact strip on mold block one and the second contact strip on mold block two abut together, thereby reducing the possibility of material being squeezed out from the gap between mold block one and mold block two during the molding process, which could lead to burrs on the produced product.

[0017] Furthermore, a positioning rod is fixed on the first positioning block, and a positioning groove corresponding to the positioning rod is opened on the second positioning block.

[0018] By adopting the above technical solution, positioning block one drives positioning rod to move, and positioning rod is inserted into positioning groove on positioning block two, thereby further limiting positioning block one and positioning block two, and further reducing the possibility of mold block one and mold block two offsetting.

[0019] Furthermore, four symmetrically arranged demolding rods are slidably connected to the mold block two, and the demolding rods penetrate through the mold block two.

[0020] By adopting the above technical solution, the demolding rod can move within the mold block 2, thereby pushing the product away from the mold block 2.

[0021] Furthermore, four symmetrical pneumatic plugs are fixed on the side of the mold block two away from the mold block one. An air inlet pipe is fixed on the pneumatic plug, an air outlet plug is fixed on the pneumatic plug, and a pneumatic rod is fixed on the pneumatic plug. The pneumatic rod is slidably connected to the demolding rod, and an air hole is opened on the pneumatic rod, which corresponds to the demolding rod.

[0022] By adopting the above technical solution, an external air pump blows air into the air inlet pipe, and the air is delivered into the pneumatic rod. The pneumatic rod lifts the demolding rod, and then the air pump is used to extract air outward, so that the air between the pneumatic rod and the demolding rod is extracted, allowing the demolding rod to retract into the mold block two, thereby making it easy to move the demolding rod.

[0023] In summary, this application includes at least one of the following beneficial effects;

[0024] 1. In this application, when mold block one and mold block two approach each other, mold block one drives positioning block one, and mold block two drives positioning block two, bringing positioning block one and positioning block two closer together. A limiting block on mold block two inserts into a limiting groove on mold block two just before mold block one and mold block two merge. Positioning blocks one and two limit mold block one and mold block two. When mold block one and mold block two shift, the inclined surface one on the limiting block abuts against the inclined surface two of the limiting groove. Under the constraint of inclined surfaces one and two, positioning block one and positioning block two align, allowing positioning blocks one and positioning block two to adjust the corresponding mold block one and mold block two. Simultaneously, several abutting teeth one on mold block one abut against several abutting teeth one on mold block two. On the second contact tooth, when mold block one and mold block two are completely in contact, contact teeth one and contact teeth two are completely in contact. During mold production, observe the position of contact teeth one and contact teeth two. When misalignment occurs between contact teeth one and contact teeth two, it indicates that mold block one and mold block two have deviated. At the same time, contact strip one on mold block one and contact strip two on mold block two are in contact. Contact strip one and contact strip two further seal the product forming area of ​​mold block one and mold block two. This achieves the purpose of reducing the possibility of misalignment between mold block one and mold block two during product production, which could lead to product quality problems. It also allows for the timely detection of possible misalignment or deformation between mold block one and mold block two.

[0025] 2. In this application, when the product separates from mold block one and mold block two, the product remains on mold block two. The air outlet and air inlet pipes on the pneumatic plug on mold block two are connected to an external air pump. Both the air outlet and air inlet pipes are equipped with one-way valves corresponding to the gas direction. When it is necessary to separate the product from mold block two, the external air pump blows air into the air inlet pipe, and the air is delivered to the pneumatic rod. The pneumatic rod lifts the demolding rod, which slides in mold block two and pushes the product off mold block two, completing the product demolding. Then, the air pump is used to extract air from between the pneumatic rod and the demolding rod, allowing the demolding rod to retract into mold block two. This achieves the purpose of easily separating the product from mold block two and facilitating product demolding. Attached Figure Description

[0026] Figure 1 This is a first three-dimensional structural schematic diagram of the novel mold structure in this application;

[0027] Figure 2 This is a second three-dimensional structural schematic diagram of the novel mold structure in this application;

[0028] Figure 3 This is a partial structural diagram of the positioning mechanism in this application;

[0029] Figure 4This is a partial structural diagram of the demolding rod and pneumatic plug in this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Mold block one; 2. Mold block two; 3. Mounting rod; 4. Connecting rod; 5. Positioning mechanism; 51. Positioning block one; 52. Positioning block two; 53. Limiting block; 54. Limiting groove; 55. Abutting tooth one; 56. Abutting tooth two; 57. Abutting strip one; 58. Abutting strip two; 6. Cooling hole; 7. Product; 8. Positioning rod; 9. Demolding rod; 10. Pneumatic plug; 11. Pneumatic rod. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0033] This application discloses a novel mold structure.

[0034] Reference Figure 1 , Figure 2 and Figure 3 A novel mold structure includes a mold block 1, a mold block 2 on one side of the mold block 1, two symmetrical mounting rods 3 on both the mold block 1 and the mold block 2, several connecting rods 4 fixed on the mounting rods 3, and the end of the connecting rod 4 away from the mounting rod 3 fixedly connected to the corresponding mold block 1 and mold block 2. A positioning mechanism 5 is provided between the mold block 1 and the mold block 2. Several evenly distributed cooling holes 6 are provided on both the mold block 1 and the mold block 2. A product 7 is provided between the mold block 1 and the mold block 2.

[0035] In addition, the positioning mechanism 5 includes four positioning blocks 51 that are symmetrically fixed in pairs on the mold block 1, four positioning blocks 52 that are symmetrically fixed in pairs on the mold block 2, two symmetrical limit blocks 53 that are fixed on the positioning blocks 52, and a limit groove 54 corresponding to the limit block 53 is provided on the positioning block 51.

[0036] Furthermore, the limiting block 53 has an inclined surface 1, and the inner wall of the limiting groove 54 has an inclined surface 2 corresponding to the inclined surface 1.

[0037] When using this new mold, the mounting plates on mold block 1 and mold block 2 are fixed to an external mold closing device. The connecting rod 4 is supported by the mounting rod 3, and the connecting rod 4 supports mold block 1 and mold block 2. The cooling holes 6 on mold block 1 and mold block 2 are connected to an external water cooling circulation device. During product 7 production, mold block 1 and mold block 2 are joined together, and mold material is added between them. As mold block 1 and mold block 2 approach each other, mold block 1 drives positioning block 51, and mold block 2 drives positioning block 52, bringing them closer together. The limiting block 53 on mold block 2 is inserted into the limiting groove 54 on mold block 2 when mold block 1 and mold block 2 are about to merge. The positioning blocks 51 and 52 then... 52 limits the positioning of mold block 1 and mold block 2. When mold block 1 and mold block 2 deviate, the inclined surface 1 on the limiting block 53 and the inclined surface 2 on the limiting groove 54 abut. Under the restriction of the inclined surface 1 and the inclined surface 2, the positioning block 1 51 and the positioning block 2 52 are aligned. The positioning block 1 51 and the positioning block 2 52 adjust the corresponding mold block 1 and mold block 2, so that after the product 7 is formed, mold block 1 and mold block 2 move away from each other. Then the formed product 7 is removed, and the forming production of product 7 is completed. By fixing the corresponding positioning block 1 51 and positioning block 2 52 on mold block 1 and mold block 2, the limiting block 53 and the limiting groove 54 on the positioning block 1 51 and the positioning groove 54 are inserted. This can reduce the possibility of the mold block 1 and mold block 2 deviating from each other when the mold is producing product 7, thus reducing the possibility of quality problems in product 7.

[0038] Reference Figure 1 , Figure 2 and Figure 3 On the side of mold block 1 near mold block 2, there are several corresponding abutting teeth 55, and on the side of mold block 2 near mold block 1, there are several corresponding abutting teeth 56.

[0039] In addition, a contact strip 57 is fixed on the side of mold block 1 near mold block 2, and a contact strip 58 is fixed on the side of mold block 2 near mold block 1. Both contact strip 57 and contact strip 58 correspond to the edge of product 7.

[0040] When mold block 1 and mold block 2 approach each other, several abutting teeth 155 on mold block 1 abut against several abutting teeth 256 on mold block 2. When mold block 1 and mold block 2 are completely in contact, abutting teeth 155 and abutting teeth 256 are completely in contact. During mold production, observe the position of abutting teeth 155 and abutting teeth 256. If misalignment occurs between abutting teeth 155 and abutting teeth 256, it indicates a deviation between mold block 1 and mold block 2, and mold block 1 and mold block 2 should be inspected and maintained promptly. When mold block 1 and mold block 2 are in contact, abutting strip 157 on mold block 1 and abutting strip 258 on mold block 2 abut against each other. 7 and the second abutment strip 58 further seal the molding area of ​​product 7 of mold block 1 and mold block 2, reducing the possibility of material being squeezed out from the gap between mold block 1 and mold block 2 during the molding process, which could cause burrs on the product 7. By fixing corresponding abutment teeth 1 55 and abutment teeth 2 56 on mold block 1 and mold block 2, the abutment of abutment teeth 1 55 and abutment teeth 2 can improve the accuracy of penetrating mold block 1 and mold block 2. At the same time, abutment strips 1 57 and abutment strips 2 58 further seal the edge area of ​​product 7 of mold block 1 and mold block 2, making it easier to detect misalignment between mold block 1 and mold block 2 in a timely manner, and reducing the possibility of burrs on the molded product 7.

[0041] Reference Figure 1 and Figure 2 A positioning rod 8 is fixed on positioning block 1 51, and a positioning groove corresponding to the positioning rod 8 is opened on positioning block 2 52. When positioning block 1 51 and positioning block 2 52 approach each other, positioning block 1 51 drives the positioning rod 8 to move, and the positioning rod 8 is inserted into the positioning groove on positioning block 2 52. The positioning rod 8 further limits the positioning of positioning block 1 51 and positioning block 2 52. By fixing the positioning rod 8 on positioning block 1 51, when positioning block 1 51 and positioning block 2 52 are combined, the positioning rod 8 on positioning block 1 51 is inserted into the positioning groove on positioning block 2 52, thereby further limiting the positioning of positioning block 1 51 and positioning block 2 52 and further reducing the possibility of displacement of mold block 1 1 and mold block 2 2.

[0042] Reference Figure 1 , Figure 2 and Figure 4 Four symmetrically arranged demolding rods 9 are slidably connected to mold block 2, and the demolding rods 9 pass through mold block 2.

[0043] In addition, four symmetrical pneumatic plugs 10 are fixed on the side of mold block 2 away from mold block 1. An air inlet pipe is fixed on the pneumatic plug 10, an air outlet plug is fixed on the pneumatic plug 10, and a pneumatic rod 11 is fixed on the pneumatic plug 10. The pneumatic rod 11 is slidably connected to the demolding rod 9. An air hole is opened on the pneumatic rod 11 and corresponds to the demolding rod 9.

[0044] After product 7 is formed between mold block 1 and mold block 2, mold block 1 and mold block 2 separate. Due to the structural state between mold block 1 and mold block 2, the grooves for product 7 on mold block 1 are mostly flat, while mold block 2 has protrusions for product 7. When mold block 1 and mold block 2 separate, the friction between product 7 and mold block 2 is greater than that on mold block 1. As a result, product 7 will remain on mold block 2 when mold block 1 and mold block 2 separate. Connect the air outlet and air inlet pipes on the pneumatic plug 10 on mold block 2 to an external air pump. Install one-way valves corresponding to the gas direction on both the air outlet and air inlet pipes. When it is necessary to separate product 7 from mold block 2, an external air pump blows air into the air inlet pipe, and the air is delivered to the pneumatic rod 11. The pneumatic rod 11 lifts the demolding rod 9, which slides in mold block 2, thus removing product 7 from mold block 2 and completing the demolding of product 7. Then, the air pump is used to extract air from between the pneumatic rod 11 and the demolding rod 9, allowing the demolding rod 9 to retract into mold block 2. By installing a slidingly connected demolding rod 9 in mold block 2, and using a pneumatic plug 10 to drive the demolding rod 9, the demolding rod 9 can be moved, thereby facilitating the separation of product 7 from mold block 2 and making demolding of product 7 easier.

[0045] Working Principle: When using this new type of mold, the mounting plates on mold block 1 and mold block 2 are fixed to the external mold closing device. The mounting rod 3 supports the connecting rod 4, which in turn supports mold block 1 and mold block 2. The cooling holes 6 on mold block 1 and mold block 2 are connected to an external water cooling circulation device. The air outlet and air inlet pipes on the pneumatic plug 10 are connected to an external air pump. When producing product 7, mold block 1 and mold block 2 are closed together, and mold material is added between them. As mold block 1 and mold block 2 approach each other, mold block 1 drives positioning block 51, and mold block 2 drives positioning block 52, bringing them closer together. The limiting block 53 on mold block 2 is inserted when mold block 1 and mold block 2 are about to merge. The limiting groove 54 on mold block 2 uses positioning block 1 51 and positioning block 2 52 to limit mold block 1 1 and mold block 2 2. When mold block 1 1 and mold block 2 2 deviate, the inclined surface 1 on the limiting block 53 and the inclined surface 2 on the limiting groove 54 2 abut. Under the restriction of inclined surface 1 and inclined surface 2, positioning block 1 51 and positioning block 2 52 are aligned, and positioning block 1 51 and positioning block 2 52 adjust the corresponding mold block 1 1 and mold block 2 2. After product 7 is formed, the external air pump blows air into the air inlet pipe, and the air is delivered to the pneumatic rod 11. The pneumatic rod 11 lifts the demolding rod 9, and the demolding rod 9 slides in mold block 2 2. The demolding rod 9 pushes product 7 out of mold block 2 2, completing the demolding of product 7. Then, the air pump is used to extract air outward, so that the air between the pneumatic rod 11 and the demolding rod 9 is extracted, and the demolding rod 9 retracts into mold block 2 2, completing the production of product 7.

Claims

1. A novel mold structure, comprising a mold block (1), characterized in that: A mold block 2 (2) is provided on one side of the mold block 1 (1). Both the mold block 1 (1) and the mold block 2 (2) are provided with two symmetrical mounting rods (3). Several connecting rods (4) are fixed on the mounting rods (3). The end of the connecting rod (4) away from the mounting rod (3) is fixedly connected to the corresponding mold block 1 (1) and mold block 2 (2). A positioning mechanism (5) is provided between the mold block 1 (1) and the mold block 2 (2). Several evenly distributed cooling holes (6) are provided on both the mold block 1 (1) and the mold block 2 (2). A product (7) is provided between the mold block 1 (1) and the mold block 2 (2).

2. The novel mold structure according to claim 1, characterized in that: The positioning mechanism (5) includes four positioning blocks (51) that are symmetrically fixed in pairs on the mold block (1), and four positioning blocks (52) that are symmetrically fixed in pairs on the mold block (2). Two symmetrical limiting blocks (53) are fixed on the positioning blocks (52), and the positioning blocks (51) are provided with limiting grooves (54) corresponding to the limiting blocks (53).

3. The novel mold structure according to claim 2, characterized in that: The limiting block (53) has an inclined surface one, and the inner wall of the limiting groove (54) has an inclined surface two corresponding to the inclined surface one.

4. The novel mold structure according to claim 1, characterized in that: A number of corresponding abutting teeth 1 (55) are fixed on the side of the mold block 1 (1) near the mold block 2 (2), and a number of corresponding abutting teeth 2 (56) are fixed on the side of the mold block 2 (2) near the mold block 1 (1).

5. The novel mold structure according to claim 4, characterized in that: A first contact strip (57) is fixed on the side of the mold block one (1) near the mold block two (2), and a second contact strip (58) is fixed on the side of the mold block two (2) near the mold block one (1). Both the first contact strip (57) and the second contact strip (58) correspond to the edge of the product (7).

6. The novel mold structure according to claim 2, characterized in that: A positioning rod (8) is fixed on the first positioning block (51), and a positioning groove corresponding to the positioning rod (8) is opened on the second positioning block (52).

7. The novel mold structure according to claim 1, characterized in that: Four symmetrical demolding rods (9) are slidably connected to the mold block two (2), and the demolding rods (9) penetrate through the mold block two (2).

8. The novel mold structure according to claim 7, characterized in that: Four symmetrical pneumatic plugs (10) are fixed on the side of the mold block 2 (2) away from the mold block 1 (1). An air inlet pipe is fixed on the pneumatic plug (10), an air outlet plug is fixed on the pneumatic plug (10), and a pneumatic rod (11) is fixed on the pneumatic plug (10). The pneumatic rod (11) is slidably connected to the demolding rod (9). An air hole is opened on the pneumatic rod (11) and corresponds to the demolding rod (9).

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