Positioning device for injection molding machine mold

Abstract

The utility model discloses a positioning device for an injection molding machine mould, which comprises a positioning mechanism, a movable mould arranged on the positioning mechanism and a fixed mould matched with the movable mould, the positioning mechanism comprises an installation top plate, a hydraulic cylinder, a fixed seat, two support columns, a vacuum pump and a vacuum chuck, the two support columns are arranged on two sides of the installation top plate, and the vacuum chuck is arranged on the fixed seat. The fixed mold is installed on the fixing base, positioning sleeves are installed on the two sides of the movable mold, telescopic rods detachably connected with the positioning sleeves on the two sides of the movable mold respectively are movably connected to the two supporting columns, the output end of the hydraulic cylinder is movably connected with the installation top plate, and a connecting plate used for fixing a vacuum suction cup is fixed to the output end of the hydraulic cylinder. The injection mold disclosed by the utility model has the beneficial effects that the injection mold which is worn after being used for a long time can be conveniently replaced, and meanwhile, deviation is prevented when the movable mold and the fixed mold are closed, so that the product quality and the production efficiency are ensured, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and more specifically, to a positioning device for injection molding machine molds. Background Art

[0002] The injection molding machine mold is a key tool in injection molding production. It is used to produce various plastic products. It consists of two parts: a movable mold and a fixed mold. The injection mold needs to be installed on the injection molding machine when in use. The movable mold is installed on the end of the mold-closing hydraulic cylinder on the injection molding machine, and the fixed mold is installed on the fixed template on the injection molding machine for fixing the fixed mold. During the injection molding process, the movable mold and the fixed mold are closed to form a pouring system and a cavity. During the injection molding process, the heated and melted plastic is injected into the cavity by the injection molding machine under high pressure. After cooling and solidification, a molded product with a complete structure and precise size is obtained. When the mold is opened, it is separated to take out the plastic product. Accurate positioning is required when closing the mold to prevent affecting the normal use of the injection mold.

[0003] However, in actual production, it is inconvenient to replace the injection mold that is worn out after long-term use, so as to avoid problems such as unstable product size and reduced surface quality caused by the worn injection mold, and prevent the movable mold and the fixed mold from offset when they are closed, so as to ensure the quality and production efficiency of the product and improve practicality. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a positioning device for injection molding machines that is convenient for replacing injection molds that are worn out after long-term use, to avoid problems such as unstable product dimensions and reduced surface quality caused by worn injection molds, and to prevent the movable mold and the fixed mold from offsetting when they are closed, so as to ensure product quality and production efficiency and improve practicality.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A positioning device for an injection molding machine mold comprises a positioning mechanism, a movable mold mounted on the positioning mechanism, and a fixed mold matched with the movable mold. The positioning mechanism comprises a mounting top plate, a hydraulic cylinder, a fixing seat, two supporting columns, a vacuum pump, and a vacuum suction cup. The two supporting columns are mounted on both sides of the mounting top plate, and the fixing seat is mounted on the two supporting columns.

[0007] The fixed mold is installed on the fixed seat, the movable mold is placed above the fixed mold, and positioning sleeves are installed on both sides of the movable mold. Telescopic rods that are movably connected to the positioning sleeves on both sides of the movable mold are respectively detachably connected. The hydraulic cylinder is fixed on the top of the mounting top plate, and the output end of the hydraulic cylinder passes through the mounting top plate and is movably connected to the mounting top plate. A connecting plate is fixed to the output end of the hydraulic cylinder. The vacuum pump is fixed on the mounting top plate and connected to the vacuum suction cup, and the vacuum suction cup is fixed on the connecting plate and is adsorbed on the movable mold in cooperation with the vacuum pump.

[0008] It is further configured that a guide channel is opened on the connecting plate, a chain is arranged in the guide channel, two ends of the chain extend from two ends of the guide channel respectively and correspond to the positioning sleeves on both sides of the movable mold respectively, and a connecting ring connected with the corresponding positioning sleeve is fixed on the chain.

[0009] It is further configured that a fixed plate is fixed on the fixed mold, the fixed plate includes a threaded hole, the fixed mold is installed on the fixed seat by bolting the threaded hole and the mounting hole on the fixed seat, and movable holes are respectively opened on the two support columns, and an adjusting screw is threadedly connected to the movable hole, and a clamping plate for tightening the fixed mold is installed on the adjusting screw.

[0010] It is further configured that a positioning slot is provided on the support column, a positioning slider slidably connected to the corresponding positioning slot is installed on the telescopic rod, and the positioning slider is clamped with the positioning slot.

[0011] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: the vacuum pump is controlled to open or close to control the adsorption connection of the vacuum suction cup to the movable mold, and the connection between the movable mold and the support column is controlled by the telescopic rod telescopic and positioning sleeve disassembly connection, so that the movable mold can be replaced according to the needs, and the fixed mold can be fixed by controlling the clamping plate to fix the fixed mold by controlling the adjusting screw, and the fixed mold can be fixed by bolting the threaded hole and the mounting hole on the fixed seat, so that the fixed mold can be replaced easily. In the process of the hydraulic cylinder controlling the closing of the movable mold and the fixed mold, the telescopic rod slides in the positioning slide groove to avoid the displacement of the movable mold during the movement process, and the position of the fixed mold on the fixed seat is adjusted according to the position of the movable mold, and then the fixed mold is fixed on the fixed seat by bolting the threaded hole and the mounting hole on the fixed seat, and the adjusting screws on the two support columns are coordinated to control the clamping plate to further fix the fixed mold, so as to further avoid the displacement when the movable mold and the fixed mold are closed, so that the fixed mold and the movable mold can be used normally in correspondence, so as to facilitate the replacement of the injection mold worn after long-term use, and avoid the problems that the worn injection mold may cause the product size to be unstable and the surface quality to be reduced, and at the same time, prevent the displacement when the movable mold and the fixed mold are closed, so as to ensure the quality and production efficiency of the product and improve the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0013] Figure 2 It is a schematic diagram of the result of the coordination between the positioning groove and the positioning slider.

[0014] In the figure: movable mold 1, fixed mold 2, mounting top plate 3, hydraulic cylinder 4, fixed seat 5, support column 6, vacuum pump 7, vacuum suction cup 8, positioning sleeve 9, connecting plate 11, telescopic rod 12, guide channel 13, chain 14, connecting ring 15, fixing plate 16, threaded hole 17, movable hole 18, adjusting screw 19, clamping plate 20, positioning slide block 21, positioning slide groove 22. DETAILED DESCRIPTION

[0015] Reference Figure 1 to Figure 2 The utility model is further described in detail.

[0016] A positioning device for an injection molding machine mold comprises a positioning mechanism, a movable mold 1 mounted on the positioning mechanism, and a fixed mold 2 matched with the movable mold 1, wherein the positioning mechanism comprises a mounting top plate 3, a hydraulic cylinder 4, a fixing seat 5, two supporting columns 6, a vacuum pump 7, and a vacuum suction cup 8, wherein the two supporting columns 6 are mounted on both sides of the mounting top plate 3, the fixing seat 5 is mounted on the two supporting columns 6 for fixing the fixed mold 2, a fixing plate 16 is fixed on the fixed mold 2, the fixing plate 16 comprises a threaded hole 17, the fixed mold 2 is mounted on the fixing seat 5 by bolts connecting the threaded hole 17 and the mounting hole on the fixing seat 5, the two supporting columns 6 are respectively provided with movable holes 18, the movable holes 18 are internally threadedly connected with adjusting screws 19, and the adjusting screws 19 are provided with a clamping plate 20 for pressing the fixed mold 2 tightly,

[0017] The movable mold 1 is placed above the fixed mold 2, and positioning sleeves 9 are installed on both sides of the movable mold 1. The two support columns 6 are movably connected with telescopic rods 12 which are detachably connected to the positioning sleeves 9 on both sides of the movable mold 1. The support columns 6 are provided with positioning slides 22. The telescopic rods 12 are installed with positioning sliders 21 which are slidably connected to the corresponding positioning slides 22. The telescopic rods 12 can be selected as threaded telescopic rods 12 to facilitate fixing the length of the telescopic rods 12 and better maintain the connection between the telescopic rods 12 and the positioning sleeves 9 on the movable mold 1. The hydraulic cylinder 4 is fixed on the top of the mounting top plate 3, and the output end of the hydraulic cylinder 4 The top plate 3 is penetrated and movably connected with the top plate 3. A connecting plate 11 is fixed to the output end of the hydraulic cylinder 4. The vacuum pump 7 is fixed on the top plate 3 and communicated with the vacuum suction cup 8. The vacuum suction cup 8 is fixed on the connecting plate 11 and is adsorbed on the movable mold 1 in cooperation with the vacuum pump 7. A guide channel 13 is opened on the connecting plate 11. A chain 14 is arranged in the guide channel 13. Two ends of the chain 14 extend from two ends of the guide channel 13 and correspond to the positioning sleeves 9 on both sides of the movable mold 1 respectively. A connecting ring 15 which is sleeved with the corresponding positioning sleeves 9 is fixed on the chain 14.

[0018] Working principle: before the hydraulic pump drives the movable mold 1 to cooperate with the fixed mold 2 through the connecting plate 11, the chain 14 on the connecting plate 11 is connected with the positioning sleeve 9 on the movable mold 1 through the connecting ring 15 to facilitate the stable fixation of the movable mold 1 on the connecting plate 11, and the vacuum pump 7 is turned on to cooperate with the vacuum suction cup 8 to generate negative pressure so that the vacuum suction cup 8 adsorbs and fixes the movable mold 1, and further makes the movable mold 1 stably connected and fixed on the connecting plate 11, so that when the hydraulic pump drives the movable mold 1 to move and cooperate with the fixed mold 2 through the connecting plate 11, the movable mold 1 is prevented from being offset due to unstable connection and affecting the closing with the fixed mold 2, and the telescopic rod 12 is positioned on the support column 6 through the positioning slider 21 Sliding in the positioning slide groove 22 and adjusting the length of the telescopic rod 12 to connect with the positioning sleeve 9 is convenient for limiting the movement of the movable mold 1 when the hydraulic cylinder 4 drives the movable mold 1 to move through the connecting plate 11, further avoiding the displacement of the movable mold 1 and the fixed mold 2 when they are closed, and adjusting the position of the fixed mold 2 on the fixed seat 5 according to the position of the movable mold 1, and then fixing the fixed mold 2 on the fixed seat 5 by bolting the threaded hole 17 and the mounting hole on the fixed seat 5, and coordinating the adjustment screws 19 on the two support columns 6 to control the clamping plate 20 to further fix the fixed mold 2, further avoiding the displacement of the movable mold 1 and the fixed mold 2 when they are closed, so that the fixed mold 2 and the movable mold 1 can be used normally in correspondence.

[0019] At the same time, the connection between the connecting ring 15 and the positioning sleeve 9 is convenient for disassembly, adjusting the length of the telescopic rod 12 to disengage from the positioning sleeve 9, and controlling the vacuum pump 7 to close so that the vacuum suction cup 8 is disengaged from the movable mold 1, which is convenient for removing the movable mold 1 from the connecting plate 11, and convenient for replacing the movable mold 1 as needed, and by controlling the adjusting screw 19 to control the disengagement of the clamping plate 20 from the fixed mold 2, the bolts are disengaged from the threaded holes 17 and the mounting holes on the fixed seat 5, which is convenient for removing the fixed mold 2 from the fixed seat 5, and convenient for replacing the fixed mold 2, so as to facilitate the replacement of the injection mold that is worn after long-term use, avoid the problems that the worn injection mold may cause unstable product size, reduced surface quality, etc., and at the same time prevent the movable mold 1 and the fixed mold 2 from offset when they are closed, so as to ensure the quality and production efficiency of the product and improve practicality.

[0020] The positioning slide block 21 is engaged with the positioning slot 22 to prevent the positioning block from being separated from the positioning slot 22 during the sliding process in the positioning slot 22 , thereby affecting the movement of the movable mold 1 .

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning device for an injection molding machine mold, characterized in that: The invention comprises a positioning mechanism, a movable mold (1) mounted on the positioning mechanism, and a fixed mold (2) matched with the movable mold (1), wherein the positioning mechanism comprises a mounting top plate (3), a hydraulic cylinder (4), a fixing seat (5), two supporting columns (6), a vacuum pump (7) and a vacuum suction cup (8), wherein the two supporting columns (6) are mounted on both sides of the mounting top plate (3), and the fixing seat (5) is mounted on the two supporting columns (6). The fixed mold (2) is mounted on a fixed seat (5), the movable mold (1) is placed above the fixed mold (2), and positioning sleeves (9) are installed on both sides of the movable mold (1), and telescopic rods (12) are movably connected to the two support columns (6) and are detachably connected to the positioning sleeves (9) on both sides of the movable mold (1). The hydraulic cylinder (4) is fixed on the top of the mounting top plate (3), and the output end of the hydraulic cylinder (4) passes through the mounting top plate (3) and is movably connected to the mounting top plate (3), and the output end of the hydraulic cylinder (4) is fixed to a connecting plate (11), and the vacuum pump (7) is fixed on the mounting top plate (3) and is connected to the vacuum suction cup (8), and the vacuum suction cup (8) is fixed on the connecting plate (11) and is adsorbed on the movable mold (1) in cooperation with the vacuum pump (7).

2. A positioning device for an injection molding machine mold according to claim 1, characterized in that: The connecting plate (11) is provided with a guide channel (13), and a chain (14) is arranged in the guide channel (13). Two ends of the chain (14) extend from two ends of the guide channel (13) and correspond to the positioning sleeves (9) on both sides of the movable mold (1). A connecting ring (15) is fixed on the chain (14) and is sleeved with the corresponding positioning sleeves (9).

3. A positioning device for an injection molding machine mold according to claim 2, characterized in that: A fixing plate (16) is fixed on the fixed die (2), the fixing plate (16) includes a threaded hole (17), the fixed die (2) is mounted on the fixed seat (5) by bolts connecting the threaded hole (17) and the mounting hole on the fixed seat (5), and movable holes (18) are respectively opened on the two support columns (6), and an adjusting screw (19) is connected to the inner thread of the movable hole (18), and a clamping plate (20) for pressing the fixed die (2) is mounted on the adjusting screw (19).

4. A positioning device for an injection molding machine mold according to claim 3, characterized in that: The support column (6) is provided with a positioning slot (22), and the telescopic rod (12) is provided with a positioning slide block (21) slidably connected to the corresponding positioning slot (22), and the positioning slide block (21) is clamped with the positioning slot (22).

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