Injection mold structure

Abstract

The utility model provides an injection mold structure, which comprises a lower mold base, an upper mold base and a lower mold base, the lower mold base comprises a lower mold plate and a guide rod, an injection molding piece is arranged on the lower mold plate, and the guide rod is arranged on the lower mold plate; the upper mold base abuts against the lower mold base along the guide rods, the lower mold base comprises an upper mold plate and a mold closing plate arranged on the upper mold plate, and the mold closing plate is matched with the injection molding part; the first cooling part is connected to the injection molding part in a sleeving manner; and a second cooling member. According to the injection mold structure provided by the utility model, when the injection mold works, the lower mold base is attached to the upper mold base through the guide rod, so that the mold closing plate and the injection molding piece are closed to form a material cavity, after material injection is finished, the injection molding piece is sleeved with the first cooling piece to be cooled, and the mold closing plate is cooled through the second cooling piece; and therefore, the production efficiency of the mold is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and more specifically to an injection mold structure. Background Technology

[0002] Injection molds include a cavity and a core that fits into the cavity. The main process is to melt plastic, apply pressure to it, and pour it into the cavity to fit the core. After the fluid plastic cools between the cavity and the core, it is used to make parts with relatively complex shapes.

[0003] In the production process of bags and luggage, most of the components are made of plastic. Among them, casters are an important part of bag and luggage transportation. Casters are often made by injection molding. After the existing casters are mass-produced and shaped, because multiple casters are manufactured at one time, the heat is concentrated in the mold and cannot be dissipated quickly. If they are removed quickly, some casters may not be fully shaped and will have defects. Usually, they are removed after natural cooling, which greatly reduces the production efficiency of casters. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies and to solve the issue of how cooling methods after injection molding affect production efficiency.

[0005] To achieve the above objectives, this utility model can be implemented through the following technical solution: an injection mold structure, comprising:

[0006] The lower mold base includes a lower template and a guide rod. An injection molding component is provided on the lower template, and the guide rod is provided on the lower template.

[0007] The upper mold base abuts against the lower mold base along the guide rod. The lower mold base includes an upper template and a closing template disposed on the upper template. The closing template cooperates with the injection mold.

[0008] The first cooling component is sleeved on the injection molding component and fixedly connected to the lower mold plate.

[0009] The second cooling component is disposed on the upper template and is engaged with the closing template.

[0010] In this embodiment of the utility model, the first cooling component includes a base frame and a cooling sleeve snapped onto the base frame, wherein the cooling sleeve has a cooling cavity that cooperates with the injection molded part;

[0011] The base frame is equipped with an inlet pipe and an outlet pipe, and the cooling jacket is equipped with a spiral flow channel that cooperates with the inlet pipe and the outlet pipe.

[0012] In this embodiment of the utility model, a guide plate is provided on the cooling jacket, and the drain port is provided on the guide plate, which is located on the opposite side of the water outlet pipe.

[0013] In this embodiment of the utility model, the second cooling component includes a cooling plate and a cover plate that engages with the cooling plate. The cover plate and the cooling plate engage to form a diversion channel, which is located directly above the assembly plate.

[0014] In this embodiment of the utility model, a top plate is provided on the upper template, and a nozzle is provided on the top plate. The nozzle includes a material distribution plate and an injection plate that engages with the material distribution plate. An injection port is provided on the injection plate.

[0015] The assembly template is provided with a material pipe that is connected to the material distribution plate.

[0016] In this embodiment of the utility model, a support plate and a bottom plate are sequentially provided at the bottom of the lower template, and the first cooling component is disposed between the support plate and the lower template;

[0017] A push rod is slidably mounted on the base plate, and a slide plate is provided at the end of the push rod. A demolding rod is provided on the slide plate, and the demolding rod slides at the axis of the injection molded part.

[0018] In this embodiment of the utility model, the support plate is provided with a spring that pushes against the sliding plate.

[0019] In this embodiment of the utility model, a blocking plate is provided on the base plate, the slide plate slides along the blocking plate, and a shim is provided on the base plate.

[0020] In this embodiment of the utility model, a guide groove is provided on the lower template.

[0021] In this embodiment of the utility model, the number of injection molding parts is the same as the number of the first cooling parts.

[0022] Compared with the prior art, the advantages of this application are as follows: When the injection mold is working, the lower mold base fits with the upper mold base through the guide rod, so that the mold plate and the injection mold part are closed to form a material cavity. After the injection is completed, the first cooling component is sleeved on the injection mold part to cool it, while the second cooling component cools the mold plate, so as to quickly cool the molded part and improve the production efficiency of the mold. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the assembly of the upper and lower mold bases of an injection mold;

[0024] Figure 2 This is a schematic diagram of the internal parts structure of the upper and lower mold bases when separated.

[0025] Figure 3 This is a schematic diagram of the exploded structure of some parts in the lower mold base;

[0026] Figure 4 This is a schematic diagram of the exploded structure of the parts in the first cooling component;

[0027] Figure 5 This is an exploded view of the parts in the upper mold base;

[0028] Figure 6 This is a partial cross-sectional view of the overall structure.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Lower mold base; 11. Base plate; 111. Elevating block; 112. Blocking plate; 12. Bearing plate; 13. Lower mold plate; 14. Injection mold component; 15. Guide groove; 16. Guide rod;

[0031] 2. Upper mold base; 21. Upper template; 211. Mold assembly; 212. Material tube; 22. Nozzle; 221. Material distribution plate; 222. Injection plate; 223. Injection port; 23. Top plate;

[0032] 3. First cooling component; 31. Support block; 32. Water inlet pipe; 34. Cooling jacket; 341. Spiral flow channel; 342. Cooling chamber; 35. Guide plate; 351. Drain outlet; 36. Base frame; 37. Water outlet pipe; 4. Second cooling component; 41. Cover plate; 42. Cooling plate; 43. Connecting pipe; 44. Diversion channel;

[0033] 5. Top rod; 51. Slide plate; 52. Ejector rod; 53. Spring. Detailed Implementation

[0034] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0035] like Figure 1-6 As shown, an injection mold structure includes:

[0036] The lower mold base 1 includes a lower template 13 and a guide rod 16. The lower template 13 is provided with an injection molding component 14, and the guide rod 16 is provided on the lower template 13.

[0037] The upper mold base 2 abuts against the lower mold base 1 along the guide rod 16. The lower mold base 1 includes an upper template 21 and a closing template 211 disposed on the upper template 21. The closing template 211 cooperates with the injection mold 14.

[0038] The first cooling component 3 is sleeved on the injection molding component 14 and fixedly connected to the lower template 13.

[0039] The second cooling component 4 and the first cooling component 3 are disposed on the upper template 21 and are engaged with the closing template 211.

[0040] Specifically, the upper mold base 2 is a fixed mold that guides liquid plastic into the injection mold 14 and the mold plate 211, while the lower mold base 1 is a moving mold, meaning that the lower mold base 1 moves closer to or further away from the upper mold base 2 to make the mold plate 211 fit with the injection mold 14 to form a material cavity. Then, the upper mold base 2 pours liquid plastic into the material cavity. After the pouring is completed, the first cooling element 3 is used to cool the injection mold 14. The first cooling element 3 contacts the injection mold 14 in a sleeve manner, thereby increasing the cooling area of ​​the injection mold 14, that is, cooling the outer wall and bottom surface of the molded product and reducing the phenomenon of adhesion to the injection mold 14. The second cooling element 4 is connected to the mold plate 211 to cool the top surface of the molded product and reduce the phenomenon of adhesion to the mold plate 211.

[0041] As a further embodiment of this utility model, the first cooling component 3 includes a base frame 36 and a cooling sleeve 34 snapped onto the base frame 36. The cooling sleeve 34 has a cooling cavity 342 that mates with the injection molded part 14. The base frame 36 is provided with an inlet pipe 32 and an outlet pipe 37. The cooling sleeve 34 is provided with a spiral flow channel 341 that mates with the inlet pipe 32 and the outlet pipe 37. The assembly process of the first cooling component 3 is as follows: the pre-formed guide plate 35 is installed onto the cooling sleeve 34. Next, the cooling jacket 34 is assembled onto the base frame 36 so that the drain port 351 is positioned on the opposite side of the water outlet pipe 37. Then, the first cooling component 3 is completely covered onto the bottom of the injection molding component 14 so that the cooling cavity 342 is completely attached to the cylindrical outer wall of the injection molding component 14, thereby improving the cooling efficiency of the model inside the injection molding component 14. A support block 31 is provided on the lower template 13 to support the water inlet pipe 32 and the water outlet pipe 37, thereby improving the flow stability of the coolant.

[0042] As a further embodiment provided by this utility model, a guide plate 35 is provided on the cooling jacket 34, and a drain port 351 is provided on the guide plate 35. The drain port 351 is located on the opposite side of the water outlet pipe 37. The guide plate 35 is engaged with the cooling jacket 34. When assembled to the base frame 36, it is not in contact with the bottom surface of the base frame 36. The guide plate 35 and the bottom surface of the mounting cavity of the base frame 36 form a flow channel to cool the lower surface of the injection mold 14. During cooling, the coolant enters the spiral flow channel 341 from the water inlet pipe 32 and fully cools the cooling cavity 342 along the spiral flow channel 341, thereby cooling the columnar outer wall of the injection mold 14 and improving the cooling efficiency of the injection mold 14 model.

[0043] As a further embodiment of this utility model, the second cooling component 4 includes a cooling plate 42 and a cover plate 41 that is engaged with the cooling plate 42. The cover plate 41 and the cooling plate 42 are engaged to form a diversion channel 44. The diversion channel 44 is located directly above the assembly template 211. Two adjacent second cooling components 4 are connected by a connecting pipe 43. During the cooling process of the assembly template 211, the coolant is drawn from the cooling plate 42 into the diversion channel 44. The coolant flow path is circular, and one side of the circular flow path is attached to the upper surface of the assembly template 211, thereby improving the cooling effect on the assembly template 211.

[0044] As a further embodiment of this utility model, a top plate 23 is provided on the upper mold plate 21, and a nozzle 22 is provided on the top plate 23. The nozzle 22 includes a material distribution plate 221 and an injection plate 222 that engages with the material distribution plate 221. An injection port 223 is provided on the injection plate 222. A material pipe 212 communicating with the material distribution plate 221 is provided on the mold plate 211. The nozzle 22 is used to guide liquefied plastic into the upper mold base 2. As the channel of the material pipe 212 narrows... This increases the pressure on the liquefied plastic, allowing it to better enter between the injection mold 14 and the mold plate 211. The nozzle 22 has an injection port 223 connected to a plastic softening device to guide the plastic into the injection plate 222 first. The plastic is then diverted along the injection plate 222 to the distribution plate 221. To improve the plastic injection effect, the discharge end of the distribution plate 221 is reduced from large to small, thereby squeezing the liquefied plastic and reducing the occurrence of air bubbles in the liquefied plastic.

[0045] As a further embodiment provided by this utility model, a support plate 12 and a base plate 11 are sequentially arranged at the bottom of the lower template 13. A first cooling element 3 is arranged between the support plate 12 and the lower template 13. A push rod 5 is slidably arranged on the base plate 11. A slide plate 51 is arranged at the end of the push rod 5. A demolding rod 52 is arranged on the slide plate 51. The demolding rod 52 slides at the axis of the injection mold 14. When the mold in the injection mold 14 is completely cooled, the push rod 5 can slide along the base plate 11 to push the slide plate 51 and the demolding rod 52 to slide axially, so that the demolding rod 52 is located on the injection mold 14 and the protruding mold is completely ejected, thereby realizing automated demolding.

[0046] As a further embodiment of this utility model, the support plate 12 is provided with a spring 53 that pushes against the slide plate 51. The spring 53 has a reset effect and improves the retraction effect of the slide plate 51. The elastic pushing force of the spring 53 drives the slide plate 51 to slide away from the support plate 12. The number of springs 53 is the same as the number of demolding rods 52, and the springs 53 are sleeved on the outside of the demolding rods 52.

[0047] As a further embodiment of this utility model, a baffle plate 112 is provided on the base plate 11, the slide plate 51 slides along the baffle plate 112, and a shim block 111 is provided on the base plate 11. The baffle plate 112 has a limiting effect so that the slide plate 51 can only slide axially along the baffle plate 112, while the shim block 111 limits the sliding distance of the slide plate 51, which controls the extension length of the demolding rod 52 at the injection mold 14.

[0048] As a further embodiment of this utility model, the lower template 13 is provided with a guide groove 15. There are at least two sets of guide grooves 15, which are arranged between two guide rods 16. When the upper template 21 and the lower template 13 abut against each other, the guide grooves 15 play a certain limiting role.

[0049] As a further embodiment provided by this utility model, the number of injection molding parts 14 and the number of first cooling parts 3 are the same. The first cooling part 3 is a separate cooling unit and corresponds one-to-one with the injection molding parts 14. After the injection molding is completed, the first cooling part 3 cools the individual injection molding parts 14, thereby improving the cooling effect on the injection molding parts 14.

[0050] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0051] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. An injection mold structure, characterized in that, include: The lower mold base includes a lower template and a guide rod. An injection molding component is provided on the lower template, and the guide rod is provided on the lower template. The upper mold base abuts against the lower mold base along the guide rod. The lower mold base includes an upper template and a closing template disposed on the upper template. The closing template cooperates with the injection mold. The first cooling component is sleeved on the injection molding component and fixedly connected to the lower mold plate. The second cooling component is disposed on the upper template and is engaged with the closing template.

2. The injection mold structure according to claim 1, characterized in that, The first cooling component includes a base frame and a cooling sleeve snapped onto the base frame, wherein the cooling sleeve has a cooling cavity that mates with the injection molded part; The base frame is equipped with an inlet pipe and an outlet pipe, and the cooling jacket is equipped with a spiral flow channel that cooperates with the inlet pipe and the outlet pipe.

3. The injection mold structure according to claim 2, characterized in that, The cooling jacket is provided with a guide plate, and the guide plate has a drain port, which is located on the opposite side of the water outlet pipe.

4. The injection mold structure according to claim 1, characterized in that, The second cooling component includes a cooling plate and a cover plate that engages with the cooling plate. The cover plate and the cooling plate close together to form a flow channel, which is located directly above the assembly plate.

5. The injection mold structure according to claim 1, characterized in that, The upper template is provided with a top plate, and the top plate is provided with a nozzle. The nozzle includes a material distribution plate and an injection plate that engages with the material distribution plate. The injection plate is provided with an injection port. The assembly template is provided with a material pipe that is connected to the material distribution plate.

6. The injection mold structure according to claim 1, characterized in that, The bottom of the lower template is provided with a support plate and a bottom plate in sequence, and the first cooling component is disposed between the support plate and the lower template. A push rod is slidably mounted on the base plate, and a slide plate is provided at the end of the push rod. A demolding rod is provided on the slide plate, and the demolding rod slides at the axis of the injection molded part.

7. The injection mold structure according to claim 6, characterized in that, The support plate is provided with a spring that pushes against the sliding plate.

8. The injection mold structure according to claim 6, characterized in that, A baffle plate is provided on the base plate, the slide plate slides along the baffle plate, and a shim is provided on the base plate.

9. The injection mold structure according to claim 6, characterized in that, The lower template is provided with a guide groove.

10. The injection mold structure according to claim 1, characterized in that, The number of injection molded parts is the same as the number of the first cooling parts.

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