Mold bracket for plastic product forming machine

By designing a mold bracket for plastic product molding machine, the problem of manual participation in mold release by multi-station vertical injection molding machines is solved, automatic mold release is achieved, and the degree of automation and production efficiency is improved.

CN119773145AActive Publication Date: 2025-04-08JIANGSU LUCHI NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202510287845.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2025-04-08
Estimated Expiration
2045-03-12

AI Technical Summary

Technical Problem

Multi-station vertical injection molding machines require manual participation in mold release work, which affects the degree of automation and production efficiency.

Method used

A mold bracket for a plastic product molding machine is designed, including a moving master mold mounting part, a flipped sub-mold mounting part and a multi-directional release part. By driving the pushing part in a coordinated part, the backward state of the sub-mold positioning part is realized, and the product detachment of the injection molded product is automatically promoted.

Benefits of technology

The automatic mold release of multi-station injection molding machine has been achieved, which has improved the degree of automation and injection production efficiency, and has reduced manual intervention.

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Abstract

The invention relates to a mold bracket for an injection molding machine, in particular to a mold bracket for a plastic product molding machine. The female die mounting part is movably mounted on the frame; the sub-mold mounting part comprises an overturning piece mounted on the frame and at least two sub-mold positioning pieces connected with the overturning piece; the multidirectional demolding part is arranged between the sub-mold positioning pieces and comprises a movable piece capable of moving relative to the sub-mold positioning pieces and a pushing piece capable of pushing the movable piece to move; a cooperation part which is installed on the frame; by arranging the sub-mold mounting part and the multi-directional demolding part, compared with a rotary table type mold bracket in the prior art, the first sub-mold and the second sub-mold can be cyclically used for mold assembly production with a female mold, and products subjected to injection molding can be pushed away and concentrated to a discharging area, so that the automation degree of the multi-station injection molding machine is improved, and the production efficiency is improved. The injection production efficiency is improved.
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Description

Technical Field

[0001] The invention relates to a mold support for an injection molding machine, in particular to a mold support for a plastic product molding machine. Background Art

[0002] The injection molding machine mold support is a device used to support and fix the injection mold, and is used in conjunction with the injection molding machine. Its main function is to ensure that the mold remains stable during the injection molding process to avoid mold displacement or damage due to vibration or pressure. Common injection molding machines are divided into horizontal injection molding machines and vertical injection molding machines. Horizontal injection molding machines place the mold horizontally, while vertical injection molding machines place the mold in a vertical direction.

[0003] Existing multi-station vertical injection molding machines generally place multiple sub-molds on a rotating table, which drives the sub-molds to rotate. Multiple sub-mold cycles correspond to one mother mold position. However, since the mold closing surface of this type of multi-station vertical injection molding machine is facing upward, the operator is required to constantly remove the finished plastic products from the sub-molds, which affects the degree of automation. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is that a multi-station vertical injection molding machine requires manual participation in demoulding work.

[0005] The above technical problem is solved by the following technical solution: The present invention proposes a mold support for a plastic product molding machine, which includes: frame; A female mold mounting portion, which is movably mounted on the frame; The sub-mold mounting part includes a flipping piece mounted on the frame, and at least two sub-mold positioning pieces connected to the flipping piece; A multi-directional demoulding part, which is arranged between the sub-mold positioning members, comprises a movable member capable of moving relative to the sub-mold positioning members, and a pushing member capable of pushing the movable member to move; A cooperation part, which is installed on the frame; The sub-mold positioning member is in a forward state when it faces toward the mother mold mounting part, and is in a backward state when it faces away from the mother mold mounting part. The rotation of the flip member can adjust the state of the sub-mold positioning member. When the mother mold mounting part moves toward the sub-mold mounting part, the cooperative part can drive the pushing member to push the movable member to move toward the sub-mold positioning member in the backward state.

[0006] In a preferred embodiment of the mold bracket for a plastic product molding machine described in the present invention: the cooperative part includes a cross-telescopic arm, which is connected to the mother mold mounting part; a lifting base plate, which is connected to the cross-telescopic arm; a multifunctional column, which is installed on the lifting base plate; when the mother mold mounting part moves toward the sub-mold mounting part, the cross-telescopic arm contracts.

[0007] In a preferred embodiment of the mold support for a plastic product molding machine described in the present invention: the number of the sub-mold positioning members is two; the movable member includes a sliding body installed between the two sub-mold positioning members, and a pin push column symmetrically arranged on the sliding body.

[0008] In a preferred embodiment of the mold support for a plastic product molding machine described in the present invention: the pushing member includes a rotating shaft, which can rotate relative to the sliding body; a force-bearing arm, which is arranged on the rotating shaft; a first force-applying arm and a second force-applying arm, both of which are arranged on the rotating shaft and both resist the sliding body.

[0009] In a preferred embodiment of the mold support for a plastic product molding machine of the present invention: a through hole is provided on the sub-mold positioning member, and the position of the through hole corresponds to the position of the multifunctional column.

[0010] In a preferred embodiment of the mold support for a plastic product molding machine of the present invention: the lifting base is slidably mounted on the frame, a support body is mounted on the multifunctional column, and the maximum width of the support body is greater than the diameter of the through hole.

[0011] In a preferred embodiment of the mold support for a plastic product molding machine described in the present invention: the frame includes a back frame, and a stabilizing column is installed on the back frame; the lifting base plate is connected to a limiting body, and the limiting body is slidably connected to the stabilizing column.

[0012] In a preferred embodiment of the mold bracket for a plastic product molding machine described in the present invention: the mother mold mounting portion includes a mother mold positioning piece, and a pressing column installed on the mother mold positioning piece, and the pressing column is slidably connected to the cross telescopic arm; the lifting base plate is connected with a plug column, and the plug column is slidably connected to the cross telescopic arm.

[0013] In a preferred embodiment of the mold bracket for a plastic product molding machine described in the present invention: the frame includes a side frame, the flip member is rotatably mounted on the side frame, the flip member is also connected to a connecting frame, and the sub-mold positioning member is connected to the flip member through the connecting frame.

[0014] In a preferred embodiment of the mold support for a plastic product molding machine described in the present invention: the movable part is installed on the sub-mold positioning part through a limiting part, the limiting part includes an inner column installed on the sub-mold positioning part, the movable part is slidably installed on the inner column, and an elastic part is sleeved on the inner column, and the elastic part is in contact with the movable part.

[0015] The beneficial effects of the present invention are as follows: by setting a sub-mold mounting portion and a multi-directional demolding portion, compared with the turntable-type mold bracket in the prior art, this product can not only recycle the first sub-mold and the second sub-mold for mold combination production with the mother mold, but also can push the injection-molded products away and concentrate them in the unloading area, thereby improving the degree of automation of the multi-station injection molding machine and improving the injection production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention. Among them: Figure 1 The overall structural diagram of the present invention is shown; Figure 2 The overall structure front view of the present invention is shown; Figure 3 A schematic structural diagram of a sub-mold mounting portion is shown; Figure 4 The overall structure of the present invention is shown in a rear view; Figure 5 A schematic diagram of the structure of the coordination unit is shown; Figure 6 A schematic diagram of the structure of the mother mold mounting part and the sub-mold mounting part is shown; Figure 7 A schematic diagram of the structure of a multi-directional demoulding unit is shown; Figure 8 Shows Figure 7 Enlarged view of point A in the middle; Fig. 9 The diagram showing the coordination between the multifunctional column and the sub-mold mounting portion. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with specific implementation methods and drawings.

[0018] The terms used in the present invention are those general terms currently widely used in the art in consideration of the functions of the present invention, but these terms may vary according to the intention of a person of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as a general description based on the meaning of the terms and the present invention.

[0019] Reference Figure 1This embodiment provides a mold support for a plastic product molding machine, including a frame 1; the frame 1 is the outer frame of the entire support and is used to support the entire mold support.

[0020] like Figure 1 and Figure 2 The mold support includes a mother mold mounting part 2, which can be movably mounted on the frame 1; the mother mold mounting part 2 is used to mount the mother mold, including several guide columns 23, and the mother mold mounting part 2 also includes a mother mold positioning part 21, and the several guide columns 23 all penetrate the mother mold positioning part 21, and the mother mold positioning part 21 is connected to the hydraulic system of the injection molding machine, specifically, the mother mold positioning part 21 is connected to the hydraulic output end of the hydraulic system, and the mother mold positioning part 21 can be driven to move up and down through the hydraulic system of the injection molding machine. In the process of the mother mold positioning part 21 moving up and down, the guide columns 23 play a role in stabilizing and guiding the mother mold positioning part 21.

[0021] like Figure 1 and Figure 2 The mold support includes a sub-mold mounting portion 3, including a flip member 31 mounted on the frame 1, and at least two sub-mold positioning members 33 connected to the flip member 31; the flip member 31 is installed at a position below the mother mold mounting portion 2, and the flip member 31 can rotate, thereby driving the sub-mold positioning member 33 to rotate. The frame 1 includes a side frame 13, and the flip member 31 is rotatably mounted on the side frame 13. The flip member 31 is also connected to a connecting frame 32, and the sub-mold positioning member 33 is connected to the flip member 31 through the connecting frame 32. When the flip member 31 rotates, the sub-mold positioning member 33 can be driven to rotate through the connecting frame 32. In this embodiment, a motor is used to drive the flip member 31 to rotate. Of course, other driving structures can also be used to drive the flip member 31 to rotate. For example, a gear is installed on the flip member 31, and a hydraulic rod is set to connect the rack. The rack is meshed with the gear. The rack is driven to move by the hydraulic rod, so as to easily drive the flip member 31 to rotate.

[0022] like Figure 2 and Figure 3In this embodiment, the number of sub-mold positioning members 33 installed by the flip member 31 through the connecting frame 32 is two, and the sub-molds are installed on the two sub-mold positioning members 33. The surface of the sub-mold positioning member 33 installed with the sub-mold is the mounting surface 35. When the two sub-mold positioning members 33 are installed on the connecting frame 32, the mounting surfaces 35 are away from each other, and the position of the sub-mold positioning member 33 corresponds to the position of the mother mold positioning member 21. When the mounting surface 35 of the sub-mold positioning member 33 faces the mother mold mounting portion 2, it is a positive state, and when the mounting surface 35 of the sub-mold positioning member 33 faces the mother mold mounting portion 2, it is a positive state. When the mother mold mounting part 2 is in the back-facing state, the flip part 31 can rotate to adjust the state of the sub-mold positioning part 33. The mother mold positioning part 21 can drive the mother mold to move downward, and complete the mold closing with the sub-mold positioning part 33 in the forward state to perform injection molding. After the injection molding is completed, the two sub-mold positioning parts 33 are driven by the flip part 31 to rotate 180°, and the states of the two sub-mold positioning parts 33 are changed. At this time, the mother mold positioning part 21 can drive the mother mold to descend and continue the injection molding operation, thereby achieving the effect of recycling multi-station sub-molds.

[0023] like Figure 2 The mold support includes a multi-directional demoulding portion 4, which is arranged between the sub-mold positioning members 33, including a movable member 42 that can move relative to the sub-mold positioning members 33, and a pushing member 43 that can push the movable member 42 to move; an ejector structure is installed on the sub-mold of the injection molding machine, and its function is to eject the injection molded product formed in the sub-mold. In this embodiment, the ejector structure of the sub-mold is pushed by the movement of the movable member 42. The movable member 42 is installed between the two sub-mold positioning members 33 and can move toward any sub-mold positioning member 33. During the movement, the movable part 42 can push the ejector structure on the sub-mold, and the molded injection molded product is pushed out through the ejector structure on the mold. The pushing part 43 is used to push the movable part 42. Through the pushing part 43, the movable part 42 can be pushed to move toward the sub-mold positioning part 33 in the back state. The movable part 42 pushes the ejector structure of the sub-mold on this sub-mold positioning part 33. Because the sub-mold positioning part 33 in the back state faces the ground, when the ejector structure pushes out the molded injection molded product, the injection molded product can be easily separated from the sub-mold under the action of gravity.

[0024] refer to Figure 2 and Figure 6 , the coordination part 5 is mounted on the frame 1; when the mother mold mounting part 2 moves toward the sub-mold mounting part 3, the coordination part 5 can drive the pushing member 43 to push the movable member 42 to move toward the sub-mold positioning member 33 in the back state, so the two sub-mold positioning members 33 are marked as the first positioning member 33a and the second positioning member 33b, and the first sub-mold and the second sub-mold are respectively mounted on the first positioning member 33a and the second positioning member 33b. The working process of this bracket is as follows: In the initial state, the first positioning member 33a is in the forward state, and the second positioning member 33b is in the backward state. At this time, the hydraulic system of the injection molding machine drives the mother mold mounting part 2 to move downward to close the mold with the first positioning member 33a. After the injection molding operation is completed, the mother mold mounting part 2 moves upward to separate the mother mold and the first sub-mold on the first positioning member 33a. After separation, the first positioning member 33a and the second positioning member 33b are turned over by the flipping member 31. At this time, the second positioning member 33b is in the forward state, and the first positioning member 33a is in the backward state. The hydraulic system of the injection molding machine drives the mother mold mounting part 2 to move downward again, so that the mother mold and the second sub-mold on the second positioning member 33b are closed. The mold is moved to continue the injection molding operation. During this process, the cooperative part 5 drives the pushing member 43, and the pushing member 43 pushes the movable member 42 to move in the direction of the first positioning member 33a in the back state, pushing the ejector structure of the first sub-mold, and the ejector structure pushes the injection-molded product out of the first sub-mold. The injection-molded product is separated from the first sub-mold under the action of gravity, thereby emptying the first sub-mold, and the cycle is repeated. Compared with the turntable mold support in the prior art, this product can recycle the first sub-mold and the second sub-mold and the mother mold for mold production, and can push the injection-molded product away and concentrate it in the unloading area, thereby improving the automation degree of the multi-station injection molding machine and improving the injection production efficiency.

[0025] refer to Figure 2 As an optional embodiment, the coordination part 5 includes a cross telescopic arm 51, which is connected to the mother mold mounting part 2; a lifting base plate 52, which is connected to the cross telescopic arm 51; and a multifunctional column 53, which is installed on the lifting base plate 52. In this embodiment, the coordination part 5 can transmit the power of the hydraulic system of the injection molding machine to the multi-directional demolding part 4 through the mother mold mounting part 2. The cross telescopic arm 51 is composed of a plurality of X-shaped rod groups, and the plurality of X-shaped rod groups are arranged in a straight line and connected by shaft rotation. As shown in the figure, the driving end and the action end of the cross telescopic arm 51 are shown. The mother mold mounting part 2 is connected to the driving end, and the lifting base plate 52 is connected to the action end. When the mother mold mounting part 2 moves toward the sub-mold mounting part 3, the cross telescopic arm 51 contracts. Therefore, when the mother mold mounting part 2 moves downward, it can drive the lifting base plate 52 to move upward, thereby driving the multifunctional column 53 to move the driving pusher 43 upward.

[0026] refer to Figure 4 and Figure 5 The frame 1 includes a back frame 11, on which a stabilizing column 12 is installed; a lifting base plate 52 is connected to a limiting body 521, which is slidably connected to the stabilizing column 12; the mother mold mounting part 2 includes a pressing column 22 installed on a mother mold positioning member 21, which is slidably connected to a cross telescopic arm 51; the lifting base plate 52 is connected to an inserting column 522, which is slidably connected to the cross telescopic arm 51.

[0027] The rotation axis of one of the X-shaped rods is fixed on the back frame 11. Figure 5 A convex shaft 14 is fixed on the back frame 11, and the rotation of the X-shaped rod at the top is installed on the convex shaft 14. The purpose of setting the convex shaft 14 is to limit the entire cross telescopic arm 51 to prevent the cross telescopic arm 51 from moving when it is contracted.

[0028] In this embodiment, there are two back frames 11 and stabilizing columns 12, and there are two limit bodies 521, plug columns 522, and pressing columns 22. A first connecting groove 51a and a second connecting groove 51b are respectively provided at the driving end and the output end of the cross telescopic arm 51. The pressing column 22 is slidably connected to the first connecting groove 51a, and the plug column 522 is slidably connected to the second connecting groove 51b. Under the limitation of the limit body 521, the plug column 522 can only move up and down. Under the limitation of the mother mold positioning member 21, the pressing column 22 can also only move up and down. Therefore, when the mother mold positioning member 21 moves downward and approaches the sub-mold positioning member 33, the cross telescopic arm 51 contracts. At this time, under the action of the second connecting groove 51b, the plug column 522 drives the lifting base plate 52 to move upward, so that the multi-functional column 53 can move upward, and then can drive the pushing member 43 to perform demolding.

[0029] In this embodiment, the power of the hydraulic system is transmitted to the pushing member 43 through the cooperative part 5. Firstly, the integration of the equipment can be increased without the need to further add a driving system to drive the pushing member 43. Secondly, the transmission of the cooperative part 5 can enable the multifunctional column 53 to automatically adjust its own position according to the position of the mother mold positioning member 21.

[0030] In addition, the cross telescopic arm 51 in the collaborative part 5 can also be replaced by a pulley structure. For example, a fixed pulley is installed on the frame 1, and a steel cable is used to connect the mother mold positioning member 21 and the lifting base plate 52, and the steel cable passes around the fixed pulley. When the mother mold positioning member 21 moves downward, the steel cable moves upward to pull the lifting base plate 52 upward. When the mother mold positioning member 21 moves upward, the lifting base plate 52 moves downward under the action of gravity.

[0031] Please refer to Figure 7 and Figure 8 As an optional embodiment, the movable part 42 includes a sliding body 421 installed between the two sub-mold positioning members 33, and ejector push posts 422 symmetrically arranged on the sliding body 421. Holes for the ejector push posts 422 to pass through are installed on the two sub-mold positioning members 33. When the sliding body 421 is pushed by the pushing member 43, the ejector push post 422 can contact the ejector structure of the sub-mold installed on the sub-mold positioning member 33 through the hole, and push the ejector structure to eject the finished plastic product after injection molding from the inside of the sub-mold.

[0032] The movable part 42 is installed between the two sub-mold positioning parts 33 through the limiting part 41. The movable part 42 is installed on the sub-mold positioning part 33 through the limiting part 41. The limiting part 41 includes an inner column 411 installed on the sub-mold positioning part 33. The movable part 42 is slidably installed on the inner column 411. An elastic part 412 is sleeved on the inner column 411, and the elastic part 412 is in contact with the movable part 42.

[0033] In this embodiment, the two ends of the inner column 411 are respectively connected to the two sub-mold positioning members 33, the number of the inner columns 411 is four, and four corresponding holes are opened on the sliding body 421. The four inner columns 411 pass through the sliding body 421 through the holes. The number of elastic members 412 installed on each inner column 411 is two, and the elastic member 412 is a spring. The two springs are respectively arranged between the two sub-mold positioning members 33 and the sliding body 421. When the pushing member 43 pushes the sliding body 421 to move, the sliding body 421 will press the spring, causing the spring to deform. When the pressure of the pushing member 43 pressing the sliding body 421 disappears, the spring can restore the deformation and push the sliding body 421 to reset.

[0034] As an optional embodiment, the pushing member 43 includes a rotating shaft 431, which can rotate relative to the sliding body 421; a force arm 432, which is arranged on the rotating shaft 431; a first force arm 433 and a second force arm 434, both of which are arranged on the rotating shaft 431 and are against the sliding body 421. In this embodiment, the rotating shaft 431 can be rotatably installed on the frame 1, and can also be rotatably installed between the two sub-mold positioning members 33. As shown in the figure, the rotating shaft 431 is installed on the connecting frame 32, and two mounting ears 34 are provided on the connecting frame 32. The two ends of the rotating shaft 431 are rotatably installed on the mounting ears 34 respectively. There is a gap between the first force arm 433 and the second force arm 434, and the sliding body 421 is located in the gap. The arm 432 has a first force-bearing side 43a and a second force-bearing side 43b. When the first positioning member 33a is in a forward state and the second positioning member 33b is in a reverse state, the multifunctional column 53 rises and can contact the first force-bearing side 43a, pushing the rotating shaft 431 to rotate clockwise. At this time, the first force-applying arm 433 can rotate clockwise to press the sliding body 421 to move toward the second positioning member 33b. After flipping, the multifunctional column 53 rises and can contact the second force-bearing side 43b. At this time, the second force-applying arm 434 rotates and presses the sliding body 421 to move toward the first positioning member 33a, so that the rise of the multifunctional column 53 can stably drive the sliding body 421 to move toward the sub-mold positioning member 33 in the reverse state to perform the demolding operation.

[0035] Please refer to Fig. 9As an optional embodiment, a through hole 331 is provided on the sub-mold positioning member 33, and the position of the through hole 331 corresponds to the position of the multifunctional column 53. The through holes 331 are provided on both sub-mold positioning members 33, and the positions of the through holes 331 correspond to the positions of the multifunctional columns 53. When the mother mold positioning member 21 moves downward, the multifunctional column 53 moves upward and can penetrate the sub-mold positioning member 33 in the back state through the through hole 331. During the injection molding operation, the multifunctional column 53 stabilizes the sub-mold positioning member 33 to avoid the problem of horizontal translation of the sub-mold positioning member 33.

[0036] As an optional embodiment, the lifting base plate 52 is slidably installed on the frame 1, specifically as described above, it is installed on the back frame 11 of the frame 1 through the limit body 521, and a support body 531 is installed on the multifunctional column 53. The maximum width of the support body 531 is greater than the diameter of the through hole 331. When the mother mold positioning member 21 moves downward, the multifunctional column 53 moves upward. When the mother mold and the sub-mold on the sub-mold positioning member 33 in the forward state are molded, the support body 531 on the multifunctional column 53 contacts the sub-mold positioning member 33 in the reverse state, and supports the sub-mold positioning member 33. Therefore, the multifunctional column 53 can help share the pressure on the sub-mold positioning member 33 during the mold closing operation, reduce the pressure on the flipping member 31 during the mold closing operation, and thus protect the flipping member 31.

[0037] Finally, it should be pointed out that the methods and devices described in detail above are only embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A mold support for a plastic product molding machine, characterized in that: include, Frame (1); A mother mold mounting portion (2) which is movably mounted on the frame (1); A sub-mold mounting portion (3), comprising a flip member (31) mounted on the frame (1), and at least two sub-mold positioning members (33) connected to the flip member (31); A multi-directional demoulding portion (4) is disposed between the sub-mold positioning members (33), comprising a movable member (42) capable of moving relative to the sub-mold positioning members (33), and a pushing member (43) capable of pushing the movable member (42) to move; A cooperation part (5) mounted on the frame (1); When the sub-mold positioning member (33) faces the mother mold mounting portion (2), it is in a forward state; when the sub-mold positioning member (33) faces away from the mother mold mounting portion (2), it is in a backward state; the flip member (31) can be rotated to adjust the state of the sub-mold positioning member (33); when the mother mold mounting portion (2) moves in the direction of the sub-mold mounting portion (3), the coordination member (5) can drive the pushing member (43) to push the movable member (42) to move in the direction of the sub-mold positioning member (33) in the backward state.

2. The mold support for a plastic product forming machine according to claim 1, characterized in that: The coordination unit (5) includes: A cross telescopic arm (51) connected to the mother mold mounting portion (2); A lifting base plate (52) connected to the cross telescopic arm (51); A multifunctional column (53) mounted on the lifting base plate (52); When the mother mold mounting portion (2) moves towards the sub-mold mounting portion (3), the cross telescopic arm (51) contracts.

3. The mold support for a plastic product forming machine according to claim 2, characterized in that: The number of the sub-mold positioning members (33) is two; The movable part (42) comprises a sliding body (421) installed between two sub-mold positioning parts (33), and an ejector pin pushing column (422) symmetrically arranged on the sliding body (421).

4. The mold support for a plastic product forming machine according to claim 3, characterized in that: The pushing member (43) comprises: A rotating shaft (431) capable of rotating relative to the sliding body (421); A force-bearing arm (432) disposed on the rotating shaft (431); The first force applying arm (433) and the second force applying arm (434) are both arranged on the rotating shaft (431) and are both against the sliding body (421).

5. The mold support for a plastic product molding machine according to claim 2, 3 or 4, characterized in that: The sub-mold positioning piece (33) is provided with a through hole (331), and the position of the through hole (331) corresponds to the position of the multifunctional column (53).

6. The mold support for a plastic product forming machine according to claim 5, characterized in that: The lifting base plate (52) is slidably mounted on the frame (1); a support body (531) is mounted on the multifunctional column (53); and the maximum width of the support body (531) is greater than the diameter of the through hole (331).

7. The mold support for a plastic product forming machine according to claim 6, characterized in that: The frame (1) comprises a back frame (11), and a stabilizing column (12) is mounted on the back frame (11); The lifting base plate (52) is connected to a limiting body (521), and the limiting body (521) is slidably connected to the stabilizing column (12).

8. The mold support for a plastic product forming machine according to claim 2 or 7, characterized in that: The mother mold mounting portion (2) comprises a mother mold positioning member (21), and a pressing column (22) mounted on the mother mold positioning member (21), wherein the pressing column (22) is slidably connected to the cross telescopic arm (51); The lifting base plate (52) is connected to an insertion column (522), and the insertion column (522) is slidably connected to the cross telescopic arm (51).

9. The mold support for a plastic product forming machine according to claim 8, characterized in that: The frame (1) comprises a side frame (13), the flip member (31) is rotatably mounted on the side frame (13), the flip member (31) is also connected to a connecting frame (32), and the sub-mold positioning member (33) is connected to the flip member (31) via the connecting frame (32).

10. The mold support for a plastic product forming machine according to claim 8, characterized in that: The movable part (42) is mounted on the sub-mold positioning part (33) via a limiting part (41); the limiting part (41) comprises an inner column (411) mounted on the sub-mold positioning part (33); the movable part (42) is slidably mounted on the inner column (411); an elastic part (412) is sleeved on the inner column (411); and the elastic part (412) is in contact with the movable part (42).

Citation Information

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