Double-station vertical mould pressing injection molding machine

Abstract

The utility model discloses a double-station vertical mould pressing injection molding machine which comprises a base, a rotating disc is arranged on the upper side of the base, two lower mould positioning stations are symmetrically arranged on the rotating disc, the lower mould positioning stations are used for positioning and placing two identical lower moulds, and a first mould closing unit and a second mould closing unit are installed at the upper end of the base side by side. A first mold base and a second mold base which can be lifted up and down are arranged on the first mold closing unit and the second mold closing unit correspondingly, upper mold positioning stations corresponding to the lower mold positioning stations are arranged on the lower side of the first mold base and the lower side of the second mold base correspondingly, and the two upper mold positioning stations are used for positioning and placing two different upper molds correspondingly; and the first mold closing unit and the second mold closing unit are correspondingly provided with a first injection device and a second injection device respectively. According to the utility model, the problems of inaccurate positioning and deviation of injection positions caused by transfer of semi-finished products among different molds in the existing production process of products formed by composite injection molding of a mold pressing main body and various materials can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a double-station vertical molding injection molding machine. Background Art

[0002] With the development of lightweight and integrated automobile structures, many automotive parts are now made of multiple materials. This integration requires the use of different injection molds, often requiring the main body of the product to be compression molded first, followed by injection molding of different materials on either side. Current production processes require transferring compression-molded semi-finished products between different molds. However, the positioning of the semi-finished products within the molds must be extremely precise to ensure accurate molding. Transferring semi-finished products between molds makes it difficult to ensure consistent positioning between molds, leading to deviations in the injection position of the injection materials and resulting in substandard molded products. Furthermore, double-sided molding of different materials on both sides of the main structure requires transferring the product, which is extremely difficult to control with high precision, making it difficult to guarantee a satisfactory product quality rate.

[0003] Moreover, the current integrated design of automobile parts is relatively large in size, and the corresponding injection molds are also relatively large. This makes it more difficult to transfer and position semi-finished products in different molds. Therefore, an injection molding device that can meet the needs of multiple material injection molding without transferring semi-finished products is needed. Utility Model Content

[0004] The utility model provides a double-station vertical molding injection molding machine, which can solve the problems of inaccurate positioning and injection position deviation caused by the transfer of semi-finished products between different molds in the existing production process of products using a molded body and multiple materials for composite injection molding.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a double-station vertical molding injection molding machine, comprising a base, a turntable is provided on the upper side of the base, and two lower mold positioning stations are symmetrically provided on the turntable, and the lower mold positioning stations are used to position and place two identical lower molds, and a first mold clamping unit and a second mold clamping unit are installed side by side on the upper end of the base, the first mold clamping unit is provided with a first mold base that can be lifted up and down, and the second mold clamping unit is provided with a second mold base that can be lifted up and down, the lower side of the first mold base and the lower side of the second mold base are both provided with an upper mold positioning station corresponding to the lower mold positioning station, the two upper mold positioning stations are respectively used to position and place two different upper molds, and the side parts of the first mold clamping unit and the second mold clamping unit are respectively provided with a first injection device and a second injection device. By setting two lower molds with interchangeable positions and the same structure, the semi-finished product after compression molding can be completed with two composite injection moldings in different positions without demolding and transfer, thereby ensuring the accuracy of injection molding and the qualified rate of the product.

[0006] Preferably, the first mold clamping unit and the second mold clamping unit both include a plurality of guide pillars installed on the upper end of the base, and the upper ends of the guide pillars are respectively installed with a first upper seat and a second upper seat, the first mold base is arranged on the guide pillars between the first upper seat and the base and is driven to rise and fall by the cylinder on the first upper seat, and the second mold base is arranged on the guide pillars between the second upper seat and the base and is driven to rise and fall by the cylinder on the second upper seat. By setting the first upper seat and the second upper seat, enough cylinders can be firmly installed, the overall strength is large, and the mold clamping requirements of large-size molds are met.

[0007] Preferably, the first clamping unit and the second clamping unit both include a plurality of guide pillars installed on the upper end of the base, and the first mold base and the second mold base are both arranged on the guide pillars and driven to rise and fall by the lifting cylinders on the side of the base. The structure is simple, and the first mold base and the second mold base are directly driven to rise and fall by the lifting cylinders on both sides, which can reduce the overall height of the equipment and reduce the installation and use requirements of the equipment.

[0008] Preferably, an auxiliary translation template that can be translated to the side is provided on the upper side of the base, and the turntable is installed on the auxiliary translation template.

[0009] Preferably, the first injection device corresponds to the lower mold position on the base, and the second injection device corresponds to the upper mold position on the second mold base, so that the first injection device and the second injection device can respectively correspond to the mold cavities of the lower mold and the upper mold for injection, which is beneficial to the opening and demolding of the mold.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] A base and two clamping units are provided, and the two clamping units share a base. A set of molds can be used to complete compression molding and structural injection molding of one side, and another set of molds can be used to complete injection molding of the other side structure. Specifically, the position of the molds on the two stations can be switched by setting a turntable. Since the two lower molds have the same structure, one lower mold can be docked with the two upper molds for injection molding respectively. Therefore, the semi-finished product after compression molding can be positioned in the lower mold without demoulding and transfer, thereby ensuring the accuracy of injection molding and the qualified rate of the product. In addition, the two injection molding processes can be carried out continuously, and the production efficiency is high.

[0012] The two clamping units operate independently, and the mold opening and closing pressure and speed can be set independently, ensuring the accuracy of the two molds after the exchange of positions;

[0013] The turntable is arranged on the auxiliary translation template, and the auxiliary translation template can be moved in and out to facilitate the hoisting of the mold. Therefore, the injection molding machine of the utility model can solve the problems of inaccurate positioning and injection position deviation caused by the transfer of semi-finished products between different molds in the existing multi-material composite injection molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0015] Figure 2 This is the main structural diagram of the utility model;

[0016] Figure 3 It is a side structural diagram of the utility model;

[0017] Figure 4 This is a top-view cross-sectional structural diagram of the utility model;

[0018] Figure 5 This is a schematic diagram of the first step of mold hoisting of the present utility model;

[0019] Figure 6 This is a schematic diagram of the second step of mold hoisting of the present utility model;

[0020] Figure 7 This is a schematic diagram of the third step of mold hoisting of the present utility model;

[0021] Figure 8 This is a schematic diagram of the fourth step of mold hoisting of the present utility model;

[0022] Reference numerals:

[0023] 3. Base, 4. Auxiliary translation template, 5. Turntable, A. First clamping unit, A1. First upper seat, A2. First mold base, A6. First injection device, A7. First lower mold, A8. First upper mold, B. Second clamping unit, B1. Second upper seat, B2. Second mold base, B6. Second injection device, B7. Second lower mold, B8. Second upper mold. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] like Figure 1-8As shown, the utility model is to solve the problems of inaccurate positioning and injection position deviation caused by the transfer of semi-finished products between different molds in the existing multi-material composite injection molding process, and provides the following technical solutions: a double-station vertical molding injection molding machine, including a base 3, a turntable 5 is provided on the upper side of the base 3, and two lower mold positioning stations are symmetrically provided on the turntable 5, and the lower mold positioning stations are used to position and place two identical lower molds, and a first mold clamping unit A and a second mold clamping unit B are installed side by side on the upper end of the base 3, and the first mold clamping unit A is provided with a first mold base A2 which can be lifted up and down, and the second mold clamping unit Element B is provided with a second mold base B2 which can be raised and lowered. The lower side of the first mold base A2 and the lower side of the second mold base B2 both have upper mold positioning stations corresponding to the lower mold positioning stations. The two upper mold positioning stations are respectively used to position and place two different upper molds. The sides of the first clamping unit A and the second clamping unit B are respectively provided with a first injection device A6 and a second injection device B6. By setting two lower molds which can be interchanged in position and have the same structure, the semi-finished product after compression molding can be completed with two composite injection moldings in different positions without demolding and transfer, thereby ensuring the accuracy of injection molding and the qualified rate of the product.

[0026] Specifically, the first clamping unit A and the second clamping unit B have the same structure and occupy the space on the upper side of the base 3. The specific structure of the turntable 5 adopts the existing technology to ensure that it can withstand the weight of the large-mass mold and the pressure of the clamping. The two lower molds on the turntable 5 have the same structure and are arranged symmetrically around the center of the turntable 5. A mold positioning structure can be set on the turntable 5 to ensure that the position of the lower mold is accurate, such as setting multiple positioning strips or positioning frames on the upper side of the turntable 5, and then fixing the mold by a pressure plate; or fasteners can be directly used to fix the lower mold at an accurate position on the turntable 5.

[0027] Specifically, the first injection device A6 and the second injection device B6 can be conventional injection molding devices, installed at corresponding positions on the sides of the first and second clamping units A and B. When injection is required, they advance to dock with the corresponding molds and retreat after injection is complete. In this embodiment, the first and second injection devices A6 and B6 can also be fixed to the corresponding molds, moving with the molds and connected to an external material storage unit via a hose.

[0028] The first clamping unit A and the second clamping unit B can operate independently, so that the injection and molding processes can be set independently, such as setting the pressure and speed of opening and closing the mold. On the first clamping unit A, the main part of the product needs to be molded first when closing the mold, while the second clamping unit B is mainly for injection molding, so the pressure and speed of the first clamping unit A can be different from those of the second clamping unit B.

[0029] For example, if it is necessary to form an automobile interior panel whose main part is compression-molded using a composite material, one side of the main part needs to be molded with engineering plastics for reinforcement, and the other side needs to be molded with another material for exterior finish, the composite material can be compression-molded using the first clamping unit A. After compression molding, the reinforcement ribs on one side of the main part can be directly injection-molded using the first injection device A6 without opening the mold. Then, the mold is opened, the turntable 5 rotates 180°, the second clamping unit B is molded, and then the mold is injected twice using the second injection device B6 to mold the exterior finish on the other side of the molded main part. In this way, this automobile interior panel compositely molded with three materials can be quickly and reliably molded.

[0030] The positions of the two lower molds can be switched by rotating the turntable 5, so that repeated cycle production can be achieved.

[0031] In this embodiment, if Figure 1-4 As shown, the first clamping unit A and the second clamping unit B both include a plurality of guide pillars installed on the upper end of the base 3, and the upper ends of the guide pillars are respectively installed with a first upper seat A1 and a second upper seat B1, the first mold base A2 is arranged on the guide pillars between the first upper seat A1 and the base 3 and is driven to rise and fall by the cylinder on the first upper seat A1, and the second mold base B2 is arranged on the guide pillars between the second upper seat B1 and the base 3 and is driven to rise and fall by the cylinder on the second upper seat B1. By setting the first upper seat A1 and the second upper seat B1, enough cylinders can be firmly installed, and the overall strength is large, which meets the clamping requirements of large-size molds. The cylinder can be installed in the middle of the second upper seat B1, and the size of the cylinder can be adjusted according to pressure requirements.

[0032] In this embodiment, as another form of the first clamping unit A and the second clamping unit B, the first clamping unit A and the second clamping unit B both include a plurality of guide pillars installed on the upper end of the base 3, and the first mold base A2 and the second mold base B2 are both arranged on the guide pillars and driven to rise and fall by the lifting cylinders on the side of the base 3. The structure is simple, and the first mold base A2 and the second mold base B2 are directly driven to rise and fall by the lifting cylinders on both sides, which can reduce the overall height of the equipment and reduce the installation and use requirements of the equipment.

[0033] In order to facilitate the hoisting and installation of the mold on the turntable 5, Figure 5-8 As shown, an auxiliary translation template 4 that can be translated to the side is provided on the upper side of the base 3 , and the turntable 5 is installed on the auxiliary translation template 4 .

[0034] Specifically, such as Figure 5 As shown, first move the auxiliary translation template 4 and the turntable 5 out from one side of the base 3, and hoist and position the first set of molds at the front position on the turntable 5;

[0035] Then as Figure 6 As shown, the turntable 5 rotates 180 degrees, and the first lower mold is moved to the rear of the turntable 5, as shown in FIG. Figure 7 As shown, the second set of molds is hoisted and positioned at the front position on the turntable 5, and then Figure 8 As shown, the auxiliary translation template 4 and the turntable 5 are moved together to the upper side of the base 3, thus completing the positioning and installation of the two sets of molds. Then the first mold base A2 and the second mold base B2 on the first clamping unit A and the second clamping unit B can be lowered and connected one-to-one with the upper molds in the two sets of molds, thereby realizing independent opening and closing of the two sets of molds.

[0036] At the same time, if the mold needs to be replaced, repaired, adjusted, etc., the auxiliary translation template 4 can also be moved out of the base 3.

[0037] In this embodiment, the first injection device A6 corresponds to the lower mold position on the base 3, and the second injection device B6 corresponds to the upper mold position on the second mold base B2, so that the first injection device A6 and the second injection device B6 can respectively correspond to the mold cavities of the lower mold and the upper mold for injection, which is beneficial to the opening and demolding of the mold.

[0038] In this embodiment, the method for using the double-station vertical injection molding machine includes the following steps:

[0039] S1. Two sets of molds with identical lower molds and different upper molds are symmetrically placed and positioned on the lower mold positioning station on the turntable 5. The first mold base A2 and the second mold base B2 are moved downward to be connected and fixed to the first upper mold A8 and the second upper mold B8 in sequence. The first mold base A2 and the second mold base B2 are moved upward to keep the two sets of molds in the open state.

[0040] S2. Place the molding material on the first lower mold A7, move the first mold base A2 downward to close the mold, mold the molding material into shape, and maintain the closed mold state;

[0041] S3, the first injection device injects material into the cavity below the molded material inside the first lower mold A7 to form the structure below the molded material;

[0042] S4. After molding, the first lower mold A7 and the first upper mold A8 are opened, and the turntable 5 rotates 180°, so that the first lower mold A7 and the molded material move to the position corresponding to the second upper mold B8, and the second lower mold B7 moves to the position corresponding to the first upper mold A8;

[0043] S5. The second mold base B2 moves downward to close the second upper mold B8 and the first lower mold A7. At the same time, another molding material is placed on the second lower mold B7. The first mold base A2 moves downward to close the mold with the second lower mold B7 to mold the molding material. The second injection device B6 cooperates with the second upper mold B8 to inject the mold cavity on the upper side of the molding material in the second upper mold B8 to form the structure on the upper side of the molding material. At the same time, the first injection device A6 cooperates with the second lower mold B7 to inject the mold cavity on the lower side of the molding material in the second lower mold B7 to form the structure on the lower side of the molding material.

[0044] S6, open the mold, take out the product in the first lower mold A7, and rotate the turntable 5 back to the initial position;

[0045] S7. Repeat the steps S4-S6.

[0046] The above steps are implemented cyclically to combine the compression molding process with the two-shot injection molding process. The process efficiency is high. During the two-shot injection molding process, there is no need to transfer the composite compression molding material and no secondary positioning. This ensures the accuracy of the injection molding and the qualified rate of the product.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0049] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0050] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

Claims

1. A double-station vertical injection molding machine, characterized in that: include: A base (3) is provided on the upper side of the base (3), and two lower mold positioning stations are symmetrically provided on the turntable (5), and the lower mold positioning stations are used to position and place two identical lower molds. A first mold clamping unit (A) and a second mold clamping unit (B) are installed side by side on the upper end of the base (3), and a first mold base (A2) that can be lifted up and down is provided on the first mold clamping unit (A), and a second mold base (B2) that can be lifted up and down is provided on the second mold clamping unit (B). The lower side of the base (A2) and the lower side of the second mold base (B2) both have upper mold positioning stations corresponding to the lower mold positioning stations. The two upper mold positioning stations are respectively used to position and place two different upper molds. The first clamping unit (A) and the second clamping unit (B) are respectively provided with a first injection device (A6) and a second injection device (B6). The first injection device (A6) corresponds to the lower mold position on the base (3), and the second injection device (B6) corresponds to the upper mold position on the second mold base (B2).

2. The double-station vertical injection molding machine according to claim 1, characterized in that: The first mold clamping unit (A) and the second mold clamping unit (B) both include a plurality of guide columns mounted on the upper end of the base (3), the upper ends of the guide columns being respectively mounted with a first upper seat (A1) and a second upper seat (B1), the first mold base (A2) being arranged on the guide columns between the first upper seat (A1) and the base (3) and being driven by the oil cylinder on the first upper seat (A1) to be raised and lowered, and the second mold base (B2) being arranged on the guide columns between the second upper seat (B1) and the base (3) and being driven by the oil cylinder on the second upper seat (B1) to be raised and lowered.

3. The double-station vertical injection molding machine according to claim 1, characterized in that: The first clamping unit (A) and the second clamping unit (B) both include a plurality of guide pillars mounted on the upper end of the base (3); the first mold base (A2) and the second mold base (B2) are both arranged on the guide pillars and driven to rise and fall by a lifting cylinder on the side of the base (3).

4. The double-station vertical injection molding machine according to claim 1, characterized in that: An auxiliary translation template (4) that can be translated to the side is provided on the upper side of the base (3), and the turntable (5) is installed on the auxiliary translation template (4).

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