Secondary ejection mold for plastic product

Abstract

The utility model discloses a secondary ejection mold for a plastic product, and relates to the technical field of plastic products. The mold comprises a mold body, the mold body is provided with a mold cavity and an inner groove which are matched for use, and an ejection mechanism which is matched for use is arranged in the mold cavity and the inner groove; the ejection mechanism comprises an electric telescopic rod, and the tail end of the output end of the electric telescopic rod is fixedly inserted into the middle of the bottom end of the inner groove. Through the arrangement and use of the ejection mechanism, the cross-shaped ejection plate and the ejector pin can be driven to synchronously move upwards and realize one-time ejection when the demolding operation is carried out, and the ejection area of a plastic product is effectively increased through one-time ejection; and in addition, when the T-shaped push plate is in contact with the bottom end of the ejector pin, the T-shaped push plate is pushed to move upwards at multiple speeds, and a height difference is gradually formed between the T-shaped push plate and the cross-shaped ejector plate, so that secondary ejection can be realized, the plastic product can be conveniently extracted, the plastic product can be effectively prevented from deforming, and the practicability and the operation convenience are relatively high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic product, concretely is a secondary ejection mould for plastic product. BACKGROUND

[0002] Plastic is an indispensable component in home appliances, automobiles, mobile phones, PCs, medical devices and lighting appliances, and plastic products need to be processed by injection molding using a mold during production and processing, and a ejection mechanism needs to be used to eject the plastic products from the mold during demolding.

[0003] However, the existing mold for plastic product injection molding processing mostly uses a one-time ejection mechanism, and the ejection area is small, which leads to the problems of difficult ejection, difficult extraction and easy deformation of the plastic products.

[0004] To solve the above problems, the present application provides a secondary ejection mould for plastic products to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to solve the problem of the existing plastic product injection molding processing mold using a one-time ejection mechanism and a small ejection area, the utility model aims to provide a secondary ejection mould for plastic products.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme: a secondary ejection mould for plastic products, comprising a mold body, a mold groove and an inner groove are provided on the mold body for cooperation, and a ejection mechanism is provided in the mold groove and the inner groove for cooperation;

[0007] The ejection mechanism comprises an electric telescopic rod, the tail end of the output end of the electric telescopic rod is fixedly inserted into the middle of the bottom end of the inner groove, a work-shaped push plate is fixedly sleeved on the electric telescopic rod, push rods are fixedly inserted at the four corners of the work-shaped push plate, the push rods slide through the mold groove and are fixedly connected with work-shaped top plates used in cooperation with the mold groove at the tail ends of the push rods, symmetrical counterbores are formed in the bottom end of the work-shaped top plate, springs are fixedly installed in the counterbores, eyelets are fixedly connected with the tail ends of the springs, thimbles are fixedly inserted into the middle of the eyelets, the thimbles slide through the work-shaped top plate, symmetrical recesses are formed in the bottom of the inner cavity of the mold groove, the eyelets can be slidably inserted into the recesses and the counterbores, the thimbles slide through the recesses, rotary plates one are rotatably installed at the two ends of the work-shaped push plate, rotary plates two and rotary plates three are rotatably installed at the two ends of the rotary plates one, the tail end of the rotary plate two is rotatably connected with the inner wall of the inner groove, connecting plates are rotatably installed between the tail ends of the two rotary plates three, the connecting plates and the work-shaped push plate are slidably installed in the inner groove, symmetrical T-shaped push plates are fixedly inserted into the top end of the connecting plate, the T-shaped push plates can be in contact with the thimbles, rotary shafts one are rotatably inserted into the two ends of the work-shaped push plate, the middle part of the rotary plate one is rotatably sleeved on the rotary shaft one, a rotary shaft two is rotatably inserted into the lower end of the rotary plate one, the upper end of the rotary plate two is rotatably sleeved on the rotary shaft two, a rotary shaft three is rotatably inserted into the lower end of the rotary plate two, the rotary shaft three is rotatably inserted into the inner wall of the inner groove, a rotary shaft four is rotatably inserted into the upper end of the rotary plate one, the lower end of the rotary plate three is rotatably sleeved on the rotary shaft four, a rotary shaft five is rotatably inserted into the upper end of the rotary plate three, the two ends of the connecting plate are rotatably sleeved on the rotary shaft five, symmetrical clamping columns are fixedly inserted into the top end of the connecting plate, and the top end of the T-shaped push plate is fixedly connected with the clamping column.

[0008] Preferably, symmetrical insertion holes are formed in the inner wall of the inner groove, guide rods are fixedly inserted into the adjacent insertion holes, symmetrical guide holes one are formed through the work-shaped push plate, and symmetrical guide holes two are formed through the connecting plate, and the guide rods slide through the guide holes one and the guide holes two.

[0009] Compared with the prior art, the utility model has the advantages that:

[0010] 1. The ejection mechanism can drive the cross-shaped top plate and the thimble to move upward synchronously and realize one-time ejection when the demolding operation is carried out, effectively increases the ejection area of the plastic product, and when the T-shaped push plate contacts the thimble, the T-shaped push plate is pushed to move upward at a speed and gradually forms a height difference between the T-shaped push plate and the cross-shaped top plate, thereby realizing two-time ejection, facilitating the extraction of the plastic product, effectively avoiding the deformation of the plastic product, and being high in practicality and operation convenience.

[0011] 2. The cooperation of the guide rods, the guide holes one and the guide holes two limits and guides the movement and adjustment of the work-shaped push plate and the connecting plate, thereby ensuring the stable operation of the ejection mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0013] Figure 1 The structure schematic diagram of the present application.

[0014] Figure 2 The installation schematic diagram of the ejection mechanism in the present application.

[0015] Figure 3 The structure schematic diagram of the present application Figure 2 The structure schematic diagram of the present application

[0016] Figure 4 The structure schematic diagram of the present application Figure 2 The structure schematic diagram of the present application

[0017] Figure 5 The structure schematic diagram of the present application Figure 2 The structure schematic diagram of the present application

[0018] Figure 6 The structure schematic diagram of the present application Figure 2 The structure schematic diagram of the present application

[0019] In the figure: 1, mold body; 11, mold groove; 12, inner groove; 13, recess; 14, insertion hole; 2, ejection mechanism; 21, electric telescopic rod; 22, I-shaped push plate; 23, push rod; 24, I-shaped top plate; 25, counterbore; 26, spring; 27, collar; 28, ejector pin; 29, rotating plate one; 210, rotating plate two; 211, rotating plate three; 212, connecting plate; 213, T-shaped push plate; 214, guide hole one; 215, guide hole two; 216, rotating shaft one; 217, rotating shaft two; 218, rotating shaft three; 219, rotating shaft four; 220, rotating shaft five; 221, clamping column; 3, guide rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0021] Embodiment: as Figures 1-6As shown, this utility model provides a secondary ejection mold for plastic products, including a mold body 1, on which a mold groove 11 and an inner groove 12 are provided for cooperation, and an ejection mechanism 2 is provided in the mold groove 11 and the inner groove 12 for cooperation.

[0022] The ejection mechanism 2 includes an electric telescopic rod 21. The output end of the electric telescopic rod 21 is fixedly inserted into the middle of the bottom end of the inner groove 12. An I-shaped push plate 22 is fixedly sleeved on the electric telescopic rod 21. Push rods 23 are fixedly inserted into the four corners of the I-shaped push plate 22. The push rods 23 slide through the mold groove 11 and are fixedly connected at their ends to an I-shaped top plate 24 that cooperates with the mold groove 11. The bottom end of the I-shaped top plate 24 has symmetrically distributed countersunk holes 25. A spring 26 is fixedly installed in the countersunk hole 25. A collar 27 is fixedly connected to the end of the spring 26. An ejector pin 28 is fixedly inserted into the middle of the collar 27. The ejector pin 28 slides through the I-shaped top plate 24. The bottom of the inner cavity of 1 has symmetrically arranged concave holes 13, and the collar 27 can be slidably inserted into the concave holes 13 and the countersunk holes 25. The ejector pin 28 slides through the concave holes 13. Both ends of the I-shaped push plate 22 are rotatably mounted with rotating plates 29, and the ends of the rotating plates 29 are respectively rotatably mounted with rotating plates 210 and 211. The end of the rotating plate 210 is rotatably connected to the inner wall of the inner groove 12. A connecting plate 212 is rotatably mounted between the ends of the two rotating plates 211, and the connecting plate 212 and the I-shaped push plate 22 are slidably mounted in the inner groove 12. The top of the connecting plate 212 is fixedly inserted with symmetrically distributed T-shaped push plates 213, and the T-shaped push plates 213 can be connected to the ejector pin. 28 are in contact. Both ends of the I-shaped push plate 22 are rotatably connected to a rotating shaft 216. The middle of the rotating plate 29 is rotatably fitted onto the rotating shaft 216. The lower end of the rotating plate 29 is rotatably connected to a rotating shaft 217. The upper end of the rotating plate 210 is rotatably fitted onto the rotating shaft 217. The lower end of the rotating plate 210 is rotatably connected to a rotating shaft 218, which is rotatably inserted into the inner wall of the inner groove 12. The upper end of the rotating plate 29 is rotatably connected to a rotating shaft 219. The lower end of the rotating plate 211 is rotatably fitted onto the rotating shaft 219. The upper end of the rotating plate 211 is rotatably connected to a rotating shaft 220. Both ends of the connecting plate 212 are rotatably fitted onto the rotating shaft. On part 220, the arrangement of rotating shafts 1 216, 217, 3 218 and 4 219 ensures the stable rotation of the I-shaped push plate 22 and rotating plate 1 29, the stable rotation of rotating plate 1 29 and rotating plate 2 210, the stable rotation of rotating plate 2 210 and the inner wall of the inner groove 12, the stable rotation of rotating plate 1 29 and rotating plate 3 211, and the stable rotation of rotating plate 3 211 and connecting plate 212. The top of the connecting plate 212 is fixedly inserted with symmetrically distributed locking posts 221, and the top of the T-shaped push plate 213 is fixedly connected to the locking posts 221. The arrangement of the locking posts 221 ensures the stable connection between the T-shaped push plate 213 and the connecting plate 212.

[0023] By adopting the above technical scheme, when the demolding operation needs to be carried out, the electric telescopic rod 21 needs to be started, so as to drive the work type push plate 22 to move upwards, and then the work type top plate 24 and the ejector pin 28 can be driven to move upwards synchronously by the push rod 23 to realize one-time ejection, and the work type push plate 22 moves upwards at the same time to drive the middle parts of the two rotating plates one 29 to move upwards synchronously, and under the synchronous action of the rotating plate two 210 and the rotating plate three 211, the rotating plate one 29, the rotating plate two 210 and the rotating plate three 211 rotate synchronously to drive the connecting plate 212 to move upwards at a speed of two times, so as to drive the T-shaped push plate 213 to move upwards at a speed of two times, and when the T-shaped push plate 213 contacts the bottom end of the ejector pin 28, the T-shaped push plate 213 is pushed to move upwards at a speed of two times, and a height difference is gradually formed between the T-shaped push plate 213 and the work type top plate 24, and the spring 26 can be gradually extruded, and then two-time ejection can be realized.

[0024] The inner wall of the inner groove 12 is provided with symmetrically arranged insertion holes 14, and the adjacent insertion holes 14 are fixedly inserted with guide rods 3, the work type push plate 22 is provided with symmetrically arranged guide holes one 214, and the connecting plate 212 is provided with symmetrically arranged guide holes two 215, and the guide rods 3 slide through the guide holes one 214 and the guide holes two 215.

[0025] By adopting the above technical scheme, the cooperation of the guide rods 3, the guide holes one 214 and the guide holes two 215 plays a limiting and guiding role in the movement adjustment of the work type push plate 22 and the connecting plate 212, so as to ensure the stable operation of the ejection mechanism 2.

[0026] Working principle: during use, when the demolding operation needs to be carried out, the electric telescopic rod 21 needs to be started, so as to drive the work type push plate 22 to move upwards, and then the work type top plate 24 and the ejector pin 28 can be driven to move upwards synchronously by the push rod 23 to realize one-time ejection, and the work type push plate 22 moves upwards at the same time to drive the middle parts of the two rotating plates one 29 to move upwards synchronously, and under the synchronous action of the rotating plate two 210 and the rotating plate three 211, the rotating plate one 29, the rotating plate two 210 and the rotating plate three 211 rotate synchronously to drive the connecting plate 212 to move upwards at a speed of two times, so as to drive the T-shaped push plate 213 to move upwards at a speed of two times, and when the T-shaped push plate 213 contacts the bottom end of the ejector pin 28, the T-shaped push plate 213 is pushed to move upwards at a speed of two times, and a height difference is gradually formed between the T-shaped push plate 213 and the work type top plate 24, and the spring 26 can be gradually extruded, and then two-time ejection can be realized, and then the demolded plastic product can be taken down.

[0027] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technologies thereof, the present application also intends to include these modifications and variations.

Claims

1. A secondary ejection mold for plastic products, comprising a mold body (1), characterized in that: The mold body (1) is provided with a mold groove (11) and an inner groove (12) matched with each other, and the mold groove (11) and the inner groove (12) are provided with an ejection mechanism (2) matched with each other; The ejection mechanism (2) comprises an electric telescopic rod (21), the tail end of the output end of the electric telescopic rod (21) is fixedly inserted into the middle of the bottom end of the inner groove (12), a work-shaped push plate (22) is fixedly sleeved on the electric telescopic rod (21), push rods (23) are fixedly inserted into the four corners of the work-shaped push plate (22), the push rods (23) slide through the mold groove (11) and are fixedly connected with a work-shaped top plate (24) matched with the mold groove (11) at the tail ends thereof, symmetrically distributed counterbores (25) are formed in the bottom end of the work-shaped top plate (24), springs (26) are fixedly installed in the counterbores (25), the tail ends of the springs (26) are fixedly connected with thimbles (27), top pins (28) are fixedly inserted into the middle portions of the thimbles (27), the top pins (28) slide through the work-shaped top plate (24), symmetrically arranged recesses (13) are formed in the inner cavity bottom of the mold groove (11), the thimbles (27) can be slidably inserted into the recesses (13) and the counterbores (25), the top pins (28) slide through the recesses (13), turning plates one (29) are rotatably installed at the two ends of the work-shaped push plate (22), turning plates two (210) and turning plates three (211) are rotatably installed at the two ends of the turning plates one (29) respectively, the tail ends of the turning plates two (210) are rotatably connected with the inner wall of the inner groove (12), the tail ends of the two turning plates three (211) are rotatably connected with a connecting plate (212), the connecting plate (212) and the work-shaped push plate (22) are slidably installed in the inner groove (12), symmetrically distributed T-shaped push plates (213) are fixedly inserted into the top end of the connecting plate (212), and the T-shaped push plates (213) can be in contact with the top pins (28).

2. A secondary ejection mold for plastic products as claimed in claim 1, characterized in that, Symmetrically arranged insertion holes (14) are formed in the inner wall of the inner groove (12), guide rods (3) are fixedly inserted into adjacent insertion holes (14), symmetrically distributed guide holes one (214) are formed through the work-shaped push plate (22), and symmetrically arranged guide holes two (215) are formed through the connecting plate (212), and the guide rods (3) slide through the guide holes one (214) and the guide holes two (215).

3. A secondary ejection mold for plastic products as claimed in claim 1, characterized in that, Rotating shafts one (216) are rotatably inserted into the two ends of the work-shaped push plate (22), and the middle portions of the turning plates one (29) are rotatably sleeved on the rotating shafts one (216).

4. A secondary ejection mold for plastic products as claimed in claim 1, characterized in that, Rotating shafts two (217) are rotatably inserted into the lower ends of the turning plates one (29), and the upper ends of the turning plates two (210) are rotatably sleeved on the rotating shafts two (217).

5. A secondary ejection mold for plastic products as claimed in claim 1, characterized in that, Rotating shafts three (218) are rotatably inserted into the lower ends of the turning plates two (210), and the rotating shafts three (218) are rotatably inserted into the inner wall of the inner groove (12).

6. A secondary ejection mold for plastic products as defined in claim 1, wherein, Rotating shafts four (219) are rotatably inserted into the upper ends of the turning plates one (29), and the lower ends of the turning plates three (211) are rotatably sleeved on the rotating shafts four (219).

7. A secondary ejection mold for plastic products as defined in claim 1, wherein The upper end of the rotating plate three (211) is rotatably connected with a rotating shaft five (220), and the two ends of the connecting plate (212) are rotatably sleeved on the rotating shaft five (220).

8. A secondary ejection mold for plastic products as defined in claim 1, wherein, The top end of the connecting plate (212) is fixedly connected with symmetrically distributed clamping columns (221), and the T-shaped push plate (213) is fixedly connected with the top end of the clamping column (221).

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