Mold closing device of two-plate machine

Abstract

The utility model relates to the technical field of manufacturing engineering, and discloses a two-plate machine mold closing device which comprises a fixed plate and a movable plate, the movable plate is arranged on the side portion of the fixed plate, a driving lead screw and a limiting rod are connected between the fixed plate and the movable plate in an inserted mode, the driving lead screw is located on the upper side of the limiting rod, and a motor used for driving the driving lead screw is installed on the fixed plate. An injection molding cavity is formed in the fixed plate, an injection molding head is inserted into the injection molding cavity, a forming cavity corresponding to the injection molding cavity is formed in the movable plate, and through combination of a limiting rod and a driving lead screw, the device can accurately control the demolding position and achieve full-automatic operation of injection molding, mold closing and demolding, so that the requirement for manual operation is reduced, and the production efficiency is improved. According to the demolding device, the production efficiency is improved, the problem of non-uniform or incomplete product demolding is avoided, through the coordinated operation of the demolding assemblies such as the top plate, the top block and the sliding block and the connection design of the sliding block and the limiting strip, the stable proceeding of the demolding process is ensured, and therefore the demolding quality of the product is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing engineering, in particular to a two-platen mold clamping device. Background Art

[0002] The two-platen machine clamping device may refer to one of the devices used in the injection molding process. In injection molding, a two-platen machine (also called a two-platen injection molding machine) is usually composed of an upper mold plate and a lower mold plate, and the two mold plates are connected by a clamping device to achieve the clamping operation. The clamping device can be a hydraulic system, a pneumatic system or a manipulator, etc., which is used to control the movement of the upper and lower mold plates to complete the molding of the product.

[0003] The existing two-platen mold clamping machine may not be able to accurately control the demolding position during demolding, resulting in uneven or incomplete product demolding; therefore, it does not meet the existing needs. We propose a two-platen mold clamping device. Utility Model Content

[0004] The utility model provides a two-platen mold clamping device, which can accurately control the demoulding position and achieve the beneficial effect of fully automated operation of injection molding, mold clamping and demoulding, and solves the problem mentioned in the above background technology that the existing two-platen mold clamping machine may not be able to accurately control the demoulding position during demoulding, resulting in uneven product demoulding or incomplete demoulding.

[0005] The utility model provides the following technical solutions: a two-platen mold clamping device, comprising a fixed plate and a movable plate, the movable plate being arranged on the side of the fixed plate, a driving screw and a limiting rod being inserted between the fixed plate and the movable plate, the driving screw being located on the upper side of the limiting rod, a motor for driving the driving screw being installed on the fixed plate, an injection cavity being provided in the fixed plate, an injection head being inserted in the injection cavity, a molding cavity corresponding to the injection cavity being provided in the movable plate, and a demolding component for demolding being provided in the fixed plate.

[0006] As an optional solution of a two-platen mold clamping device described in the utility model, wherein: the demoulding assembly includes a top plate installed on the fixed plate, a top block is installed on the top plate, a slider is installed on the side of the top block, a limit strip is fixedly installed on the fixed plate, a slide groove is opened on the slider, the slider is slidably installed on the limit strip through the slide groove, a limit block is installed on the limit strip, and the slide groove corresponds to the limit block, and a cylinder for driving the top plate is inserted in the fixed plate.

[0007] As an optional solution of a two-platen mold clamping device described in the utility model, wherein: the cylinders are arranged in four pieces, the four cylinders are inserted into the fixed plate in a rectangular shape, and the cylinder output ends are inserted into the top plate.

[0008] As an optional solution of a two-platen mold clamping device described in the utility model, the top block and the sliding block are arranged in two groups, the two groups of the top blocks and the sliding blocks are symmetrically arranged, plastic outlets are opened in the two top blocks, and connecting chains are arranged between the sliding blocks.

[0009] As an optional solution of a two-platen mold clamping device described in the utility model, wherein: a sliding groove for sliding the top block is opened on the top plate, and the top block is movably mounted on the top plate.

[0010] As an optional solution of a two-platen mold clamping device described in the utility model, wherein: a groove is opened on the fixed plate, a pressure dividing plate is installed in the groove, and the pressure dividing plate is installed on the fixed plate by screw threads.

[0011] As an optional solution of a two-platen mold clamping device described in the utility model, wherein: a reinforcement plate is fixedly installed on the side of the pressure dividing plate, a fixed clamping block is installed on the reinforcement plate, a slot corresponding to the fixed clamping block is opened on the movable plate, and the fixed clamping block is engaged with the slot.

[0012] As an optional solution of a two-platen mold clamping device described in the utility model, wherein: a cooling cavity is opened in the movable plate, and a coolant is arranged in the cooling cavity.

[0013] The utility model has the following beneficial effects:

[0014] 1. The two-platen mold clamping device, through the combination of the limit rod and the driving screw rod, and the operation of the cylinder, enables the device to accurately control the demoulding position and realize the fully automated operation of injection molding, mold clamping and demoulding, thereby reducing the need for manual operation, improving production efficiency and avoiding the problem of uneven or incomplete product demoulding. Through the coordinated operation of demoulding components such as the top plate, top block and slider, as well as the connection design of the slider and the limit bar, the demoulding process is ensured to be stable, thereby ensuring the demoulding quality of the product.

[0015] 2. The two-platen mold clamping device has a groove on the fixed plate and installs a pressure dividing plate, and a corresponding fixed block and a slot on the movable plate. The pressure dividing plate is fixed to the fixed plate by screw threads, thereby enhancing the connection stability between the movable plate and the fixed plate. Therefore, during the demoulding process, the pressure dividing plate can evenly apply force to the product, ensuring the uniformity and integrity of the product during the demoulding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model.

[0017] Figure 2It is a schematic diagram of the side cutaway structure of the fixing plate of the utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the fixing plate of the utility model in other states from the side view.

[0019] Figure 4 It is a schematic diagram of the cutaway structure of the movable plate of the utility model in side view.

[0020] Figure 5 It is a schematic diagram of the plane structure of the fixing plate of the utility model.

[0021] In the figure: 100, fixed plate; 110, injection cavity; 120, injection head; 130, groove; 131, pressure dividing plate; 132, screw; 140, reinforcement plate; 141, fixed block; 200, movable plate; 210, slot; 220, cooling cavity; 221, coolant; 230, molding cavity; 300, driving screw; 400, limiting rod; 500, motor; 600, demoulding assembly; 610, top plate; 620, top block; 621, connecting chain; 622, outlet; 630, slider; 631, slide; 640, limiting strip; 641, limiting block; 650, cylinder. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1: This embodiment is intended to promote the solution of the problem that the existing two-platen mold clamping machine may not be able to accurately control the demoulding position during demoulding, resulting in uneven or incomplete demoulding of the product. Figure 1 - Figure 5 A two-platen mold clamping device includes a fixed plate 100 and a movable plate 200, the movable plate 200 is arranged on the side of the fixed plate 100, a driving screw 300 and a limiting rod 400 are inserted between the fixed plate 100 and the movable plate 200, the driving screw 300 is located on the upper side of the limiting rod 400, a motor 500 for driving the driving screw 300 is installed on the fixed plate 100, an injection cavity 110 is opened in the fixed plate 100, an injection head 120 is inserted in the injection cavity 110, a molding cavity 230 corresponding to the injection cavity 110 is opened in the movable plate 200, and a demolding component 600 for demolding is arranged in the fixed plate 100.

[0024] The demolding assembly 600 includes a top plate 610 installed on the fixed plate 100, a top block 620 is installed on the top plate 610, a slider 630 is installed on the side of the top block 620, a limit strip 640 is fixedly installed on the fixed plate 100, a slide groove 631 is opened on the slider 630, the slider 630 is slidably installed on the limit strip 640 through the slide groove 631, a limit block 641 is installed on the limit strip 640, and the slide groove 631 corresponds to the limit block 641, and a cylinder 650 for driving the top plate 610 is inserted into the fixed plate 100.

[0025] There are four cylinders 650, which are inserted into the fixed plate 100 in a rectangular shape, and the output end of the cylinder 650 is inserted into the top plate 610. The top block 620 and the slider 630 are set in two groups, and the two groups of top blocks 620 and sliders 630 are symmetrically arranged. Plastic outlets 622 are provided in the two top blocks 620, and connecting chains 621 are provided between the sliders 630 and the sliders 630. A sliding groove for sliding the top block 620 is provided on the top plate 610, and the top block 620 is movably installed on the top plate 610.

[0026] When the device is working, the first is the injection molding process. The injection head 120 injects the molten raw material into the injection cavity 110 in the fixed plate 100. At the same time, the molding cavity 230 on the movable plate 200 corresponds to the injection cavity 110, forming a molding space for the product. This ensures that the raw material is correctly injected into the mold and fills the entire molding space before the mold is closed; after the injection molding is completed, the movable plate 200 needs to be moved to the position of the fixed plate 100 so that the injection cavity 110 and the molding cavity 230 are completely closed. This is achieved by controlling the drive screw 300 and the limit rod 400. Once the mold is closed, the product in the mold will get the correct shape and size.

[0027] When the product is formed, it needs to be taken out of the mold. At this time, the cylinder 650 starts to work and the top plate 610 moves upward. The top block 620 and the slider 630 on the top plate 610 contact the product, and the product is pushed out of the mold through the movement of the top block 620. The slider 630 is connected to the limit bar 640 through the slide groove 631, ensuring the stable movement trajectory of the top plate 610. The symmetrical setting of the top block 620 and the slider 630 on the top plate 610 and the design of the connecting chain 621 ensure their synchronous movement, thereby ensuring the smooth demoulding process of the product.

[0028] In this embodiment: through the combination of the limit rod 400 and the driving screw 300, and the operation of the cylinder 650, the device can accurately control the demolding position and realize the fully automated operation of injection molding, mold closing and demolding, thereby reducing the need for manual operation, improving production efficiency and avoiding the problem of uneven or incomplete product demolding. Through the coordinated operation of the demolding components 600 such as the top plate 610, the top block 620 and the slider 630, and the connection design of the slider 630 and the limit bar 640, the demolding process is ensured to be stable, thereby ensuring the demolding quality of the product.

[0029] Embodiment 2: This embodiment is intended to help solve the problem caused by uneven contact between the top plate 610 and the product during demoulding or unstable movement trajectory of the top plate 610. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 - Figure 5 .

[0030] The fixed plate 100 is provided with a groove 130, in which a pressure dividing plate 131 is installed, and the pressure dividing plate 131 is threadedly installed on the fixed plate 100 by means of screws 132. A reinforcing plate 140 is fixedly installed on the side of the pressure dividing plate 131, and a fixed clamping block 141 is installed on the reinforcing plate 140. A clamping groove 210 corresponding to the fixed clamping block 141 is provided on the movable plate 200, and the fixed clamping block 141 is clamped with the clamping groove 210.

[0031] A cooling chamber 220 is provided in the movable plate 200, and a coolant 221 is provided in the cooling chamber 220, which can effectively control the temperature of the mold. During the injection molding process, the mold will be deformed by heat, and overheating may also cause product quality degradation or mold damage. By providing a cooling chamber 220 in the movable plate 200 and circulating the coolant 221, the mold temperature can be timely and effectively reduced, and the mold can be kept within a suitable operating temperature range, thereby improving production efficiency and product quality.

[0032] In this embodiment: by opening a groove 130 on the fixed plate 100 and installing a pressure dividing plate 131, and installing a corresponding fixed block 141 and a slot 210 on the movable plate 200, the pressure dividing plate 131 is threadedly fixed to the fixed plate 100 by screws 132, thereby enhancing the connection stability between the movable plate 200 and the fixed plate 100, so that during the demolding process, the pressure dividing plate 131 can evenly apply force to the product, ensuring the uniformity and integrity of the product during the demolding process.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A two-platen mold clamping device, comprising a fixed plate (100) and a movable plate (200), characterized in that: The movable plate (200) is arranged on the side of the fixed plate (100); a driving screw rod (300) and a limiting rod (400) are inserted between the fixed plate (100) and the movable plate (200); the driving screw rod (300) is located on the upper side of the limiting rod (400); a motor (500) for driving the driving screw rod (300) is installed on the fixed plate (100); an injection cavity (110) is provided in the fixed plate (100); an injection head (120) is inserted in the injection cavity (110); a molding cavity (230) is provided in the movable plate (200); and a demoulding component (600) for demoulding is provided in the fixed plate (100).

2. A two-platen mold clamping device according to claim 1, characterized in that: The demoulding assembly (600) comprises a top plate (610) mounted on the fixed plate (100), a top block (620) being mounted on the top plate (610), a slider (630) being mounted on the side of the top block (620), a limit strip (640) being fixedly mounted on the fixed plate (100), a slide groove (631) being provided on the slider (630), the slider (630) being slidably mounted on the limit strip (640) via the slide groove (631), a limit block (641) being mounted on the limit strip (640), and the slide groove (631) corresponding to the limit block (641), and a cylinder (650) for driving the top plate (610) being inserted into the fixed plate (100).

3. A two-platen mold clamping device according to claim 2, characterized in that: The cylinders (650) are arranged in four pieces, and the four cylinders (650) are inserted into the fixing plate (100) in a rectangular shape, and the output ends of the cylinders (650) are inserted into the top plate (610).

4. A two-platen mold clamping device according to claim 2, characterized in that: The top block (620) and the sliding block (630) are arranged in two groups, and the two groups of the top blocks (620) and the sliding blocks (630) are symmetrically arranged. A plastic outlet (622) is opened in the two top blocks (620), and a connecting chain (621) is arranged between the sliding blocks (630) and the sliding blocks (630).

5. The two-platen mold clamping device according to claim 2, characterized in that: The top plate (610) is provided with a sliding groove for sliding the top block (620), and the top block (620) is movably mounted on the top plate (610).

6. A two-platen mold clamping device according to claim 3, characterized in that: The fixing plate (100) is provided with a groove (130), a pressure dividing plate (131) is installed in the groove (130), and the pressure dividing plate (131) is threadedly installed on the fixing plate (100) via screws (132).

7. A two-platen mold clamping device according to claim 6, characterized in that: A reinforcing plate (140) is fixedly mounted on the side of the pressure dividing plate (131), a fixed clamping block (141) is mounted on the reinforcing plate (140), a clamping slot (210) corresponding to the fixed clamping block (141) is provided on the movable plate (200), and the fixed clamping block (141) is engaged with the clamping slot (210).

8. The two-platen mold clamping device according to claim 1, characterized in that: A cooling cavity (220) is provided in the movable plate (200), and a cooling liquid (221) is provided in the cooling cavity (220).

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