Plastic mold convenient to demold

Abstract

The utility model provides a plastic mould convenient to demould, which is suitable for the technical field of plastic moulds, and adopts the soymilk scheme that the plastic mould convenient to demould comprises a mounting shell, a fixed mould main body, a movable mould main body and an ejector plate, a movable mold body is mounted on the upper surface of the fixed mold body, and an ejector plate is slidably connected to the inner wall of the fixed mold body; the moving mechanism is mounted in the mounting shell, the moving mechanism is started, the ejection plate is controlled to move upwards to eject a plastic product, the ejection plate can be moved upwards to eject the plastic product by mounting the moving mechanism, workers do not need to stay around the plastic mold all the time, and meanwhile, the ejection plate can be taken down to be overhauled and maintained; the practicability of the plastic mold is improved; the utility model is also applicable to the field of plastic moulds.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to a plastic mold which is easy to demould. Background Art

[0002] Plastic molds are processing equipment for producing plastic products. Plastic molds are usually composed of a fixed mold and a movable mold. Plastic liquid is injected into the plastic mold. After the plastic liquid cools down, the electric push rod is started to move the movable mold upward, and the movable mold and the fixed mold are separated. The molded plastic product is then taken out manually. Manually taking out the plastic product requires staff to stay next to the plastic mold at all times. At the same time, during the separation process of the plastic product, scratches are easily left on the surface of the plastic product, causing damage to the plastic product. Polishing equipment is needed to remove the scratches. Severe cases will cause damage to the plastic product, making it impossible to repair the plastic product using polishing equipment.

[0003] Therefore, it is necessary to provide a new plastic mold that is easy to demould to solve the above-mentioned technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a plastic mold which is easy to demould.

[0005] The utility model provides a plastic mold that is easy to demold, comprising: a mounting shell, a fixed mold body, a movable mold body and an ejector plate, wherein a fixed mold body is arranged above the mounting shell, a movable mold body is mounted on the upper surface of the fixed mold body, and an ejector plate is slidably connected to the inner wall of the fixed mold body; a moving mechanism, wherein the mounting shell is internally mounted with the moving mechanism, and the ejector plate is controlled to move upward by starting the moving mechanism to eject the plastic product, and the plastic liquid is injected into the fixed mold body and the movable mold body, and after the plastic liquid in the fixed mold body and the movable mold body is cooled, the electric push rod moves the movable mold body upward, starts the moving mechanism in the mounting shell, moves the ejector plate upward, and the top of the molded plastic product is pushed out, and there is no need to manually separate the plastic product from the fixed mold body.

[0006] Preferably, the moving mechanism comprises a moving mounting slot, a driving motor, a first screw rod, a moving seat and a connecting rod, the mounting shell is provided with a moving mounting slot, the inner wall of the moving mounting slot is fixedly installed with a driving motor, the inner wall of the moving mounting slot is rotatably connected to the first screw rod, and the top of the first screw rod is rotatably connected to the lower surface of the fixed mold body, the inner wall of the moving mounting slot is slidably connected to the moving seat, and the threaded surface of the first screw rod is meshed with the inner wall of the circular hole of the moving seat, the connecting rod is symmetrically fixedly installed on the top of the moving seat, the top of the connecting rod is fixedly connected to the lower surface of the ejection plate, and the connecting rod is slidably connected to the inner wall of the fixed mold body, the output shaft of the driving motor is meshed with the bottom of the first screw rod through a spur gear, the driving motor inside the moving mounting slot is started, the spur gear of the driving motor output shaft contacts the spur gear at the bottom of the first screw rod, driving the round rod part of the first screw rod to rotate at the inner wall of the moving mounting slot and the bottom of the fixed mold body, the threaded surface of the first screw rod and the inner wall of the circular hole of the basic moving seat control the moving seat to move upward, drive the connecting rod to move upward, and the ejection plate ejects the plastic product.

[0007] Preferably, a cooling groove is provided inside the movable mold body, and the cooling groove is threaded. The coolant enters the inner wall of the cooling groove through the pipeline inlet on the surface of the movable mold body to cool the plastic product inside the movable mold body. The threaded design can increase the contact area between the coolant and the plastic product and improve the cooling efficiency of the plastic product.

[0008] Preferably, four guide grooves are symmetrically provided on the upper and lower surfaces of the movable mold body, and four guide rods are symmetrically fixedly connected to the upper surface of the fixed mold body, and the guide rods are slidably connected with the guide grooves. When the electric push rod controls the movable mold body to move upward, the guide rods slide along the inner walls of the guide grooves to ensure stability when the movable mold body moves up and down, thereby guiding the movement of the movable mold body.

[0009] Preferably, the inner wall of the movable installation groove is symmetrically fixedly connected with a limit rod, and the limit rod is located on both sides of the first screw rod. The limit rod is slidably connected with the circular hole of the movable seat to limit the movable seat. When the movable seat moves upward, the limit rod slides along the inner wall of the circular hole on the surface of the movable seat to ensure that the movable seat does not shake during the movement of the movable seat, thereby improving the stability of the movement of the movable seat.

[0010] Preferably, a replacement groove is symmetrically opened inside the movable seat, a replacement block is fixedly connected to the bottom of the connecting rod, and the replacement block is slidably connected to the replacement groove, a second screw rod and a third screw rod are rotatably connected to the inner wall of the replacement groove on both sides, and the second screw rod is located below the third screw rod, a first connecting block and a second connecting block are slidably connected to the inner wall of the replacement groove, and the first connecting block is located below the second connecting block, the threaded surface of the second screw rod is meshed with the inner wall of the circular hole of the first connecting block, and the threaded surface of the third screw rod is meshed with the inner wall of the circular hole of the second connecting block, and the first The connecting block and the second connecting block are slidably connected with the rectangular hole of the replacement block, the connecting rod is moved close to the moving seat, the replacement block enters the replacement groove, the second screw rod and the third screw rod are rotated, the threaded surfaces of the second screw rod and the third screw rod contact the inner wall of the circular hole of the first connecting block and the second connecting block, the first connecting block and the second connecting block are sent into the inner wall of the rectangular hole of the replacement block, the moving seat and the connecting rod are firmly connected, the second screw rod and the third screw rod are rotated in the opposite direction, the first connecting block and the second connecting block are moved out of the inner wall of the rectangular hole of the replacement block, it is convenient to separate the connecting rod and the moving seat, and the ejection plate is removed for replacement and maintenance.

[0011] Compared with the related art, the plastic mold that is easy to demould provided by the utility model has the following beneficial effects:

[0012] The utility model provides a plastic mold that is easy to demould:

[0013] 1. By installing a moving mechanism, the ejector plate can be moved upward to eject the plastic product. There is no need for workers to stay around the plastic mold all the time. At the same time, the ejector plate can be removed for inspection and maintenance, which improves the practicality of the plastic mold.

[0014] 2. The limit rods are symmetrically fixedly connected through the inner wall of the mobile installation groove, and the limit rods are located on both sides of the first screw rod. The limit rods are slidably connected with the circular hole of the mobile seat to limit the mobile seat. When the mobile seat moves upward, the limit rods slide along the inner wall of the circular hole on the surface of the mobile seat to ensure that the mobile seat will not shake during the movement of the mobile seat, thereby improving the stability of the movement of the mobile seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structural diagram provided by the utility model;

[0016] Figure 2 A schematic cross-sectional view of the main body of the movable mold provided by the utility model;

[0017] Figure 3 A schematic cross-sectional view of the fixed mold body provided by the utility model;

[0018] Figure 4 A schematic diagram of the structure of the mobile mechanism provided by the utility model;

[0019] Figure 5 The utility model is a cross-sectional schematic diagram of the movable seat provided by the utility model.

[0020] Numbers in the figure: 1. Mounting shell; 2. Fixed mold body; 3. Moving mold body; 4. Ejector plate; 5. Moving mechanism; 51. Moving mounting groove; 52. Driving motor; 53. First screw rod; 54. Moving seat; 55. Connecting rod; 6. Cooling groove; 7. Guide groove; 8. Guide rod; 9. Limit rod; 10. Replacement groove; 11. Replacement block; 12. Second screw rod; 13. Third screw rod; 14. First through-connecting block; 15. Second through-connecting block. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the plastic mold for easy demoulding includes: a mounting shell 1, a fixed mold body 2, a movable mold body 3 and an ejector plate 4, wherein a fixed mold body 2 is arranged above the mounting shell 1, a movable mold body 3 is mounted on the upper surface of the fixed mold body 2, and an ejector plate 4 is slidably connected to the inner wall of the fixed mold body 2; a moving mechanism 5, wherein a moving mechanism 5 is mounted inside the mounting shell 1, and the ejector plate 4 is controlled to move upward by starting the moving mechanism 5 to eject the plastic product, and inject the plastic liquid into the fixed mold body 2 and the movable mold body 3, and after the plastic liquid in the fixed mold body 2 and the movable mold body 3 is cooled, the electric push rod moves the movable mold body 3 upward, starts the moving mechanism 5 inside the mounting shell 1, moves the ejector plate 4 upward, and the top of the molded plastic product is separated from the fixed mold body 2 manually without the need for manual separation of the plastic product and the fixed mold body 2.

[0023] Embodiment 1:

[0024] In the specific implementation process, Figure 3 and Figure 4As shown, the moving mechanism 5 includes a moving installation groove 51, a driving motor 52, a first screw rod 53, a moving seat 54 and a connecting rod 55. The installation shell 1 is provided with a moving installation groove 51, and the driving motor 52 is fixedly installed on the inner wall of the moving installation groove 51. The inner wall of the moving installation groove 51 is rotatably connected with the first screw rod 53, and the top of the first screw rod 53 is rotatably connected to the lower surface of the fixed mold body 2. The inner wall of the moving installation groove 51 is slidably connected with the moving seat 54, and the threaded surface of the first screw rod 53 is meshed with the inner wall of the circular hole of the moving seat 54. The top of the moving seat 54 is symmetrically fixedly installed with a connecting rod 55. The top of the connecting rod 55 is fixedly connected to the lower surface of the ejection plate 4, and the connecting rod 55 is slidably connected with the inner wall of the fixed mold body 2. The output shaft of the driving motor 52 is meshed with the bottom of the first screw rod 53 through a spur gear. The driving motor 52 inside the movable installation groove 51 is started, and the spur gear of the output shaft of the driving motor 52 contacts the spur gear at the bottom of the first screw rod 53, driving the round rod part of the first screw rod 53 to rotate on the inner wall of the movable installation groove 51 and the bottom of the fixed mold body 2. The threaded surface of the first screw rod 53 and the inner wall of the circular hole of the basic moving seat 54 control the moving seat 54 to move upward, driving the connecting rod 55 to move upward, and the ejection plate 4 ejects the plastic product.

[0025] refer to Figure 2 As shown, a cooling groove 6 is provided inside the movable mold body 3, and the cooling groove 6 is threaded. The coolant enters the inner wall of the cooling groove 6 through the pipeline inlet on the surface of the movable mold body 3 to cool the plastic product inside the movable mold body 3. The threaded design can increase the contact area between the coolant and the plastic product and improve the cooling efficiency of the plastic product.

[0026] refer to Figure 2 As shown, four guide grooves 7 are symmetrically provided on the upper and lower surfaces of the movable mold body 3, and four guide rods 8 are symmetrically fixedly connected to the upper surface of the fixed mold body 2, and the guide rods 8 are slidably connected with the guide grooves 7. When the electric push rod controls the movable mold body 3 to move upward, the guide rods 8 slide along the inner wall of the guide groove 7 to ensure that the movable mold body 3 is stable when moving up and down, thereby guiding the movement of the movable mold body 3.

[0027] refer to Figure 4 As shown, the inner wall of the movable installation groove 51 is symmetrically fixedly connected with the limit rod 9, and the limit rod 9 is located on both sides of the first screw rod 53. The limit rod 9 is slidably connected with the circular hole of the movable seat 54 to limit the movable seat 54. When the movable seat 54 moves upward, the limit rod 9 slides along the inner wall of the circular hole on the surface of the movable seat 54 to ensure that the movable seat 54 will not shake during the movement, thereby improving the stability of the movement of the movable seat 54.

[0028] Embodiment 2:

[0029] refer to Figure 5As shown, the movable seat 54 is symmetrically provided with a replacement groove 10 inside, the bottom of the connecting rod 55 is fixedly connected with a replacement block 11, and the replacement block 11 is slidably connected with the replacement groove 10, the inner wall of the replacement groove 10 is rotatably connected with a second screw rod 12 and a third screw rod 13 on both sides, and the second screw rod 12 is located below the third screw rod 13, the inner wall of the replacement groove 10 is slidably connected with a first connecting block 14 and a second connecting block 15, and the first connecting block 14 is located below the second connecting block 15, the threaded surface of the second screw rod 12 is meshed with the inner wall of the circular hole of the first connecting block 14, and the threaded surface of the third screw rod 13 is meshed with the inner wall of the circular hole of the second connecting block 15, the first connecting block 14 and The second threading block 15 is slidably connected with the rectangular hole of the replacement block 11, and the connecting rod 55 is moved close to the movable seat 54. The replacement block 11 enters the replacement groove 10, and the second screw rod 12 and the third screw rod 13 are rotated. The threaded surfaces of the second screw rod 12 and the third screw rod 13 contact the inner walls of the circular holes of the first threading block 14 and the second threading block 15. The first threading block 14 and the second threading block 15 are sent into the inner walls of the rectangular holes of the replacement block 11 to firmly connect the movable seat 54 and the connecting rod 55. The second screw rod 12 and the third screw rod 13 are rotated in the opposite direction to move the first threading block 14 and the second threading block 15 out of the inner walls of the rectangular holes of the replacement block 11, so as to facilitate the separation of the connecting rod 55 and the movable seat 54, and remove the ejection plate 4 for replacement and maintenance.

[0030] Working principle: When the plastic mold of the utility model is easy to demold, the plastic liquid is injected into the fixed mold body 2 and the movable mold body 3. After the plastic liquid in the fixed mold body 2 and the movable mold body 3 is cooled, the electric push rod moves the movable mold body 3 upward, starts the moving mechanism 5 inside the mounting shell 1, starts the driving motor 52 inside the moving mounting groove 51, and the output shaft spur gear of the driving motor 52 contacts the bottom spur gear of the first screw rod 53, driving the round rod part of the first screw rod 53 to rotate on the inner wall of the moving mounting groove 51 and the bottom of the fixed mold body 2. The threaded surface of the first screw rod 53 and the inner wall of the circular hole of the basic moving seat 54 control the moving seat 54 to move upward, driving the connecting rod 55 to move upward, and the ejector plate 4 ejects the plastic product. The ejector plate 4 is moved upward to separate the top of the molded plastic product from the fixed mold body 2 without manual work.

[0031] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A plastic mold that is easy to demould, characterized in that: include: An installation shell (1), a fixed mold body (2), a movable mold body (3) and an ejector plate (4), wherein the fixed mold body (2) is arranged above the installation shell (1), the movable mold body (3) is installed on the upper surface of the fixed mold body (2), and the ejector plate (4) is slidably connected to the inner wall of the fixed mold body (2); A moving mechanism (5), wherein the mounting shell (1) is internally mounted with the moving mechanism (5), and the ejection plate (4) is controlled to move upward by starting the moving mechanism (5) to eject the plastic product; The moving mechanism (5) comprises a moving installation groove (51), a driving motor (52), a first screw rod (53), a moving seat (54) and a connecting rod (55). The moving installation groove (51) is provided inside the installation shell (1). The driving motor (52) is fixedly installed on the inner wall of the moving installation groove (51). The first screw rod (53) is rotatably connected to the inner wall of the moving installation groove (51), and the top of the first screw rod (53) is rotatably connected to the lower surface of the fixed mold body (2). The moving seat (54) is slidably connected to the inner wall of the moving installation groove (51), and the threaded surface of the first screw rod (53) is meshedly connected to the inner wall of the circular hole of the moving seat (54). The connecting rod (55) is symmetrically fixedly installed on the top of the moving seat (54). The top of the connecting rod (55) is fixedly connected to the lower surface of the ejection plate (4), and the connecting rod (55) is slidably connected to the inner wall of the fixed mold body (2).

2. The plastic mold for easy demoulding according to claim 1, characterized in that: The output shaft of the driving motor (52) is meshedly connected to the bottom of the first screw rod (53) via a spur gear.

3. The plastic mold for easy demoulding according to claim 1, characterized in that: A cooling groove (6) is provided inside the movable mold body (3), and the cooling groove (6) is threaded.

4. The plastic mold for easy demoulding according to claim 1, characterized in that: The upper and lower surfaces of the movable mold body (3) are symmetrically provided with four guide grooves (7), and the upper surface of the fixed mold body (2) is symmetrically fixedly connected with four guide rods (8), and the guide rods (8) are slidably connected with the guide grooves (7).

5. The plastic mold for easy demoulding according to claim 1, characterized in that: The inner wall of the movable installation groove (51) is symmetrically fixedly connected to a limit rod (9), and the limit rod (9) is located on both sides of the first screw rod (53). The limit rod (9) is slidably connected with the circular hole of the movable seat (54).

6. The plastic mold for easy demoulding according to claim 1, characterized in that: The movable seat (54) is symmetrically provided with replacement grooves (10), the bottom of the connecting rod (55) is fixedly connected with a replacement block (11), and the replacement block (11) is slidably connected with the replacement groove (10).

7. The plastic mold for easy demoulding according to claim 6, characterized in that: The second screw rod (12) and the third screw rod (13) are rotatably connected to the inner wall of the replacement groove (10), and the second screw rod (12) is located below the third screw rod (13). The first connecting block (14) and the second connecting block (15) are slidably connected to the inner wall of the replacement groove (10), and the first connecting block (14) is located below the second connecting block (15). The threaded surface of the second screw rod (12) is meshed with the inner wall of the circular hole of the first connecting block (14), and the threaded surface of the third screw rod (13) is meshed with the inner wall of the circular hole of the second connecting block (15). The first connecting block (14) and the second connecting block (15) are slidably connected with the rectangular hole of the replacement block (11).

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