Molding shell forming mold
By introducing an adjustable mold cavity height structure into the molded shell mold and adjusting the sliding of the moving mold with the control components, the problem that existing molds cannot produce shells of different heights is solved, and the effect of reducing costs and expanding application scope is achieved. .
Patent Information
- Application Number
- CN202323651947.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-30
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-30
AI Technical Summary
Existing plastic shell molding molds cannot produce shells of different heights, resulting in a small application range and high cost.
A mold structure including a base, a top plate, a first fixed mold, a second fixed mold, a moving mold and a control component are designed. By adjusting the sliding of the moving mold, the sliding between the top mold bottom wall and the moving mold top wall is changed. The distance is adjusted to adjust the height of the mold cavity and realize the shell molding of different heights.
It realizes that the same mold can produce shells of different heights, expands the application range and reduces production costs.
Smart Images
Figure CN222178445U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a plastic shell forming mold. Background Art
[0002] At present, the shells of electronic products are mostly made by injection molds. Injection molds are tools used to produce plastic products. The plastic is melted and added to the mold. Under the action of gravity and heat energy, the plastic in the mold is gradually and evenly coated and adhered to the entire surface of the mold cavity, forming into the required shape, and then forming a shell after cooling and solidification.
[0003] However, during the production process of the existing plastic shell forming mold, the same mold can only produce shells of the same size, and cannot produce shells of different heights, and the application range is small. Therefore, in general, the staff will use different molds to produce shells of different heights, which is costly. Summary of the invention
[0004] The utility model aims to solve the problem that the same mold cannot produce shells of different heights and reduce costs, and proposes a molding mold for a plastic shell.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A plastic shell forming mold, comprising:
[0007] The base and the top plate installed on the base also include:
[0008] A mold assembly, the mold assembly includes a first fixed mold and a second fixed mold mounted on the top wall of the base, and a top mold mounted on the bottom of the top plate, a movable mold is slidably mounted on the top of the base through a longitudinally opened driving groove, the movable mold is longitudinally sleeved on the first fixed mold, the second fixed mold is longitudinally sleeved on the movable mold, the top mold is attached to the top wall of the second fixed mold, a control assembly for controlling the sliding of the movable mold is installed in the base, and a mold cavity is formed between the bottom wall of the top mold, the top wall of the movable mold, the top of the first fixed mold and the inner wall of the second fixed mold.
[0009] As a further description of the above technical solution:
[0010] The longitudinal height of the first fixed mold is lower than the longitudinal height of the second fixed mold. An injection port is provided on the top of the top plate. The injection port passes through the top plate and the top mold in sequence and is connected to the mold cavity.
[0011] As a further description of the above technical solution:
[0012] The movable mold side wall is provided with a groove, and the control component includes a first rack and a second rack respectively installed on the longitudinal side walls of the groove, and a first gear and a second gear respectively rotatably installed in the base through a first rotating shaft and a second rotating shaft, the first gear is meshed with the first rack, the second gear is meshed with the second rack, and the first gear is meshed with the second gear.
[0013] As a further description of the above technical solution:
[0014] One end of the second rotating shaft away from the second gear passes through the base and is fixedly connected with a knob.
[0015] As a further description of the above technical solution:
[0016] A cavity is defined in the base, in which a one-way component is installed. The one-way component comprises a ratchet installed in the cavity and a pawl hinged on the inner wall of the cavity. The free end of the pawl is elastically connected to the inner wall of the cavity via a spring, and the pawl is inserted into the tooth groove of the ratchet via the spring. The end of the first rotating shaft away from the first gear is installed at the center axis of the ratchet.
[0017] As a further description of the above technical solution:
[0018] A slide rod is slidably mounted on the side wall of the base through an arc groove, a side of the free end of the pawl away from the first rotating shaft is connected to one end of the slide rod, and an end of the slide rod away from the pawl passes through the arc groove and is fixedly connected to a handle.
[0019] As a further description of the above technical solution:
[0020] The bottom wall of the top plate is installed with a plurality of positioning rods, the top wall of the base is installed with a plurality of connecting rods, and the tops of the plurality of connecting rods are provided with limiting grooves to slide and install the positioning rods.
[0021] As a further description of the above technical solution:
[0022] The side wall of the base is slidably mounted with a slider through a slide groove, the slider is fixedly connected to the bottom of the side wall of the movable mold, the slider passes through the slide groove, and scale lines are longitudinally arranged on the side wall of the base, and the scale lines are located at the edge of the slide groove.
[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0024] 1. In the utility model, the sliding of the movable mold is controlled by the control component, thereby changing the distance between the bottom wall of the top mold and the top wall of the movable mold, thereby adjusting the longitudinal height in the mold cavity, so that the mold assembly can produce shells of different heights, solving the problem that the same mold cannot produce shells of different heights, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 A front structural schematic diagram according to an embodiment of the utility model is shown;
[0026] Figure 2 The utility model provides a Figure 1 The structural diagram of the enlarged part A in the middle;
[0027] Figure 3 A schematic diagram of the structure after the top plate and the base are unfolded according to an embodiment of the utility model is shown;
[0028] Figure 4 A schematic diagram of the structure after a longitudinal section along the central axis of the base provided according to an embodiment of the utility model is shown;
[0029] Figure 5 A schematic diagram of the structure after a longitudinal section along the inner wall of the cavity provided according to an embodiment of the utility model is shown;
[0030] Figure 6 The utility model provides a Figure 5 Schematic diagram of the structure after the B part is enlarged.
[0031] Legend:
[0032] 10. Base; 11. Connecting rod; 111. Limiting groove; 12. Positioning rod; 13. Top plate; 14. Injection port; 15. Arc groove; 16. Slide groove; 161. Scale line; 17. Driving groove; 18. Cavity; 20. Mold assembly; 21. First fixed mold; 22. Moving mold; 221. Groove; 222. Slider; 23. Second fixed mold; 24. Top mold; 30. Control assembly; 31. First rack; 32. Second rack; 33. First gear; 34. Second gear; 35. First rotating shaft; 36. Second rotating shaft; 37. Knob; 40. One-way assembly; 41. Ratchet; 42. Paw; 43. Spring; 44. Sliding rod; 45. Handle. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0034] See also Figure 1-6 , the utility model provides a technical solution:
[0035] A molding die for a plastic shell includes a base 10 and a top plate 13 installed above the base 10. A mold assembly 20 is installed on the base 10. The mold assembly 20 is used to make a plastic shell.
[0036] The mold assembly 20 includes a first fixed mold 21 and a second fixed mold 23 mounted on the top wall of the base 10, and a top mold 24 installed on the bottom of the top plate 13. A movable mold 22 is slidably installed on the top of the base 10 through a longitudinally opened driving groove 17. The movable mold 22 is longitudinally sleeved on the first fixed mold 21, and the second fixed mold 23 is longitudinally sleeved on the movable mold 22. The top mold 24 is in contact with the top wall of the second fixed mold 23. The longitudinal height of the first fixed mold 21 is lower than the longitudinal height of the second fixed mold 23. Therefore, a mold cavity is formed between the bottom wall of the top mold 24, the top wall of the movable mold 22, the top of the first fixed mold 21 and the inner wall of the second fixed mold 23. Liquid plastic enters the mold cavity to be shaped to form a shell.
[0037] The base 10 is equipped with a control component 30 for controlling the sliding of the movable mold 22. The user can slide the movable mold 22 through the control component 30. An injection port 14 is provided on the top of the top plate 13. The injection port 14 passes through the top plate 13 and the top mold 24 in sequence and is connected to the mold cavity. Therefore, the liquid plastic enters the mold cavity through the injection port 14 and is formed into a shell.
[0038] Traditionally, the same mold can only produce shells of one size and cannot produce shells of different heights, so the application range is small; workers usually use different molds to produce shells of different heights, but the cost is high; therefore, a plastic shell forming mold is designed to solve this problem.
[0039] A mold cavity is formed between the bottom wall of the top mold 24, the top wall of the movable mold 22, the top of the first fixed mold 21 and the inner wall of the second fixed mold 23. The distance between the bottom wall of the top mold 24 and the top wall of the movable mold 22 is the height of the injection molded shell, and the liquid plastic enters the mold cavity through the injection port 14; the user can slide the movable mold 22 through the control component 30, thereby adjusting the distance between the bottom wall of the top mold 24 and the top wall of the movable mold 22, thereby adjusting the longitudinal height of the mold cavity, so that the mold component 20 can produce shells of different heights; the problem that the same mold cannot produce shells of different heights is solved, and the cost is reduced.
[0040] Specifically, Figure 4-5As shown, a groove 221 is formed on the side wall of the movable mold 22, and the control component 30 includes a first rack 31 and a second rack 32 respectively installed on the left and right longitudinal side walls of the groove 221, and a first gear 33 and a second gear 34 installed on the groove 221, and the first gear 33 and the second gear 34 are respectively meshed with the first rack 31 and the second rack 32, and the first gear 33 is meshed with the second gear 34. A second rotating shaft 36 is rotatably installed in the base 10, one end of the second rotating shaft 36 is installed at the central axis of the second gear 34, and the other end passes through the base 10 and is fixedly connected to a knob 37. When the knob 37 is rotated clockwise, the second gear 34 rotates clockwise, and the first gear 33 rotates counterclockwise, and drives the second rack 32 and the first rack 31 to move downward, the distance between the bottom wall of the top mold 24 and the top wall of the movable mold 22 increases, and the height of the injection molded shell increases after molding; conversely, when the knob 37 is rotated clockwise, the second rack 32 and the first rack 31 move upward, the distance between the bottom wall of the top mold 24 and the top wall of the movable mold 22 decreases, and the height of the injection molded shell decreases after molding; therefore, the control component 30 can adjust the sliding position of the movable mold 22.
[0041] Specifically, Figure 5-6 As shown, a cavity 18 is provided in the base 10, and a one-way assembly 40 is installed in the base 10. The one-way assembly 40 includes a ratchet 41 installed in the cavity 18 and a ratchet 42 hinged on the inner wall of the cavity 18. The free end of the ratchet 42 is elastically connected to the inner wall of the cavity 18 through a spring 43. The ratchet 42 is inserted into the tooth groove of the ratchet 41 through the spring 43, so the ratchet 41 can only rotate clockwise in one direction. A first rotating shaft 35 is rotatably installed in the base 10, and the two ends of the first rotating shaft 35 are respectively connected to the ratchet 41 and the first gear 33. The first rotating shaft 35, the ratchet 41 and the first gear 33 are all located on the same central axis. When the user determines the sliding position of the movable mold 22, the ratchet 41 that can only rotate clockwise in one direction can prevent the movable mold 22 from loosening and moving down during use.
[0042] Specifically, Figure 6 As shown, a slide rod 44 is slidably installed on the side wall of the base 10 through an arc groove 15, and the free end of the pawl 42 is connected to one end of the slide rod 44 on the side away from the first rotating shaft 35, and the end of the slide rod 44 away from the pawl 42 passes through the arc groove 15 and is fixedly connected to a handle 45; when the user needs to move the movable mold 22 downward, the slide rod 44 can be slid through the handle 45 to disengage the pawl 42 from the tooth groove. At this time, the ratchet 41 can rotate clockwise and counterclockwise at the same time, so that the control component 30 can control the movable mold 22 to move downward.
[0043] Specifically, Figure 1-3As shown, in order to control the position of the top plate 13 installed on the base 10, a plurality of positioning rods 12 are installed on the bottom wall of the top plate 13, and a plurality of connecting rods 11 are installed on the top wall of the base 10. The positioning rods 12 are slidably installed on the tops of the plurality of connecting rods 11 by opening limiting grooves 111; therefore, the user can align the plurality of positioning rods 12 with the limiting grooves 111 to install the top plate 13, and the operation is simple and convenient.
[0044] Specifically, Figure 1 As shown, a slider 222 is slidably installed on the side wall of the base 10 through a slide groove 16. The slider 222 is fixedly connected to the bottom of the side wall of the movable mold 22. The slider 222 passes through the slide groove 16. A scale line 161 is longitudinally arranged on the side wall of the base 10. The scale line 161 is located at the edge of the slide groove 16. When the user uses the control component 30 to slide the movable mold 22, the sliding position of the movable mold 22 can be determined by the position of the slider 222 on the scale line 161. The operation is simple and convenient.
[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A mold for forming a plastic shell, comprising a base (10) and a top plate (13) mounted above the base (10), characterized in that: Also includes: A mold assembly (20) includes a first fixed mold (21) and a second fixed mold (23) mounted on the top wall of a base (10), and a top mold (24) mounted on the bottom of a top plate (13); a movable mold (22) is slidably mounted on the top of the base (10) by longitudinally opening a driving groove (17); the movable mold (22) is longitudinally sleeved on the first fixed mold (21); the second fixed mold (23) is longitudinally sleeved on the movable mold (22); the top mold (24) is in contact with the top wall of the second fixed mold (23); a control assembly (30) for controlling the sliding of the movable mold (22) is mounted in the base (10); a mold cavity is formed between the bottom wall of the top mold (24), the top wall of the movable mold (22), the top of the first fixed mold (21) and the inner wall of the second fixed mold (23).
2. A plastic shell forming mold according to claim 1, characterized in that: The longitudinal height of the first fixed mold (21) is lower than the longitudinal height of the second fixed mold (23); an injection port (14) is provided at the top of the top plate (13); the injection port (14) passes through the top plate (13) and the top mold (24) in sequence and is connected to the mold cavity.
3. A plastic shell forming mold according to claim 2, characterized in that: The side wall of the movable mold (22) is provided with a groove (221), and the control component (30) comprises a first rack (31) and a second rack (32) respectively mounted on the longitudinal side walls of the groove (221), and a first gear (33) and a second gear (34) respectively rotatably mounted in the base (10) via a first rotating shaft (35) and a second rotating shaft (36), wherein the first gear (33) is meshed with the first rack (31), the second gear (34) is meshed with the second rack (32), and the first gear (33) is meshed with the second gear (34).
4. A plastic shell forming mold according to claim 3, characterized in that: One end of the second rotating shaft (36) away from the second gear (34) passes through the base (10) and is fixedly connected to a knob (37).
5. A plastic shell forming mold according to claim 3, characterized in that: A cavity (18) is provided in the base (10), and a one-way component (40) is installed in the base (10). The one-way component (40) comprises a ratchet (41) installed in the cavity (18) and a pawl (42) hinged on the inner wall of the cavity (18), the free end of the pawl (42) is elastically connected to the inner wall of the cavity (18) through a spring (43), and the pawl (42) is inserted into the tooth groove of the ratchet (41) through the spring (43), and one end of the first rotating shaft (35) away from the first gear (33) is installed at the central axis of the ratchet (41).
6. A plastic shell forming mold according to claim 5, characterized in that: A slide rod (44) is slidably mounted on the side wall of the base (10) through an arc groove (15); a side of the free end of the ratchet (42) away from the first rotating shaft (35) is connected to one end of the slide rod (44); and an end of the slide rod (44) away from the ratchet (42) passes through the arc groove (15) and is fixedly connected to a handle (45).
7. A plastic shell forming mold according to claim 1, characterized in that: A plurality of positioning rods (12) are installed on the bottom wall of the top plate (13), a plurality of connecting rods (11) are installed on the top wall of the base (10), and the positioning rods (12) are slidably installed on the tops of the plurality of connecting rods (11) by providing limiting grooves (111).
8. A plastic shell forming mold according to claim 1, characterized in that: A slider (222) is slidably mounted on the side wall of the base (10) through a slide groove (16); the slider (222) is fixedly connected to the bottom of the side wall of the movable mold (22); the slider (222) passes through the slide groove (16); and a scale line (161) is longitudinally arranged on the side wall of the base (10); the scale line (161) is located at the edge of the slide groove (16).