Fixture for injection mold

Abstract

The utility model discloses a fixture for an injection mold, which relates to the technical field of injection mold processing and comprises a base and supporting legs, and a mold body is arranged above the base. During use, a motor is started at first, output of the motor enables a rotating rod to rotate through a first gear and a second gear, the rotating rod rotates to wind a pull rope through a winding roller, the pull rope is wound to pull a sliding block, and then four first clamping plates clamp a mold body at the same time; meanwhile, a sliding block moves to enable a moving rod to move, the moving rod moves to enable a moving plate to move, when a first clamping plate makes contact with the mold body, second clamping plates are located above the mold body, at the moment, the four second clamping plates move at the same time through a multi-stage telescopic hydraulic cylinder, and then the top of the mold body is fixed from multiple directions; and therefore, the mold body can be fixed from the four sides and the top, and the fixing effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold processing technical field, especially injection mold clamp for injection mold. BACKGROUND

[0002] Injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment for making various shape plastic products by using thermoplastic or thermosetting plastic. It is divided into vertical, horizontal and all-electric. Injection molding machine can heat plastic, apply high pressure to molten plastic, and make it fill the mold cavity. When using the injection molding machine, a clamp is needed to fix the mold.

[0003] In the prior art, the patent with publication number CN220313280U discloses a clamp for injection mold processing, which avoids the hindrance of the size of the rotating disc to the movement of the clamping plate and facilitates the replacement of the clamping plate. However, it can only be fixed from both sides, and cannot be fixed from four sides and the top, which may cause the mold to shift to one side or move upward, resulting in poor fixing effect. To overcome the shortcomings of the prior art, the utility model discloses a clamp for injection mold to solve the above problems. UTILITY MODEL CONTENT

[0004] The purpose of the present application is to provide a clamp for injection mold to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a clamp for injection mold, comprising a base and a support leg, a mold body is arranged above the base, and a clamping mechanism for fixing the mold body is arranged on the base;

[0006] The clamping mechanism comprises four sliding holes opened in the base, two sliding rods are installed on the opposite inner walls of each of the four sliding holes, a sliding block is slidably connected to each two compatible sliding rods, a first clamping plate is installed on the side of each of the four sliding blocks through a limiting bolt, an adjustable driving assembly is arranged on the base to move the four sliding blocks simultaneously, a moving slot is arranged in each of the four sliding blocks, a support block is movably arranged in each of the four moving slots, a second clamping plate is installed on the top of each of the four support blocks, an output assembly is arranged on the base to move the four support blocks simultaneously, and the output assembly is installed in cooperation with the sliding block.

[0007] Preferably, the adjustable driving assembly comprises four pull ropes respectively mounted on the four slide block side portions, each of the four pull ropes is provided with a size, the bottom of the base is provided with four rope holes matched with the pull ropes, the bottom of the base is provided with a motor, the output shaft of the motor is provided with a first gear, the bottom of the base is rotatably provided with four rotating rods, the bottom of each of the four rotating rods is provided with a second gear, each of the four second gears is matched with the first gear, each of the four rotating rods is rotatably provided with a winding roller, each of the four winding rollers is provided with a fixing unit, the other ends of the four pull ropes are respectively mounted on the winding rollers, and the side portions of the four slide blocks are provided with elastic reset units.

[0008] Preferably, the fixing unit comprises an annular plate mounted on the bottom of the winding roller, the circumferential side outer wall of the annular plate is provided with a fixing threaded hole, and a fixing bolt is threadedly mounted on the fixing threaded hole and abuts against the rotating rod.

[0009] Preferably, the elastic reset unit comprises a first spring mounted on the side portion of the slide block, and the other end of the first spring is mounted on the side inner wall of the slide hole.

[0010] Preferably, the output assembly comprises four lifting cavities provided on the four slide blocks and respectively communicated with the four moving grooves, the opposite inner walls of the four lifting cavities are respectively provided with two fixed rods, two fixed rods matched with each other are jointly and slidably mounted on a slide plate, four supporting blocks are respectively mounted on the top portions of the four slide plates, four moving rods are respectively mounted on the bottom portions of the four slide plates, four moving holes matched with the moving rods are respectively provided in the bottom portions of the four slide blocks, four moving plates are respectively mounted on the bottom portions of the four moving rods, the bottom of the base is provided with a mounting groove, a multistage telescopic hydraulic cylinder is mounted on the top inner wall of the mounting groove, an annular block is mounted on the output end of the multistage telescopic hydraulic cylinder, four avoiding holes matched with the moving rods are provided in the bottom of the annular block, and the bottom portions of the four slide plates are provided with elastic extrusion units.

[0011] Preferably, the elastic extrusion unit comprises a second spring mounted on the bottom portion of the slide plate, and the other end of the second spring is mounted on the bottom inner wall of the lifting cavity.

[0012] Preferably, the bottom of the base is provided with a protection box, and the bottom of the base and the top of the protection box are both provided with Velcro.

[0013] In conclusion, the technical effects and advantages of the utility model are as follows:

[0014] 1. In the utility model, in use, first open motor, motor output will pass through first gear, second gear and make the rotation of the rotating rod, the rotating rod rotation will pass through the winding roller and be rolled to the pull rope, the pull rope is rolled and is pulled to the sliding block, further four first clamping plates are simultaneously clamped to the mold body, and the movement of the sliding block will make the movement of the moving rod, the movement of the moving rod will make the movement of the moving plate, when the first clamping plate contacts the mold body, the second clamping plate is above the mold body, at this time, start multistage telescopic hydraulic cylinder, multistage telescopic hydraulic cylinder output will pass through slide, moving rod, moving plate and annular block and make four second clamping plates move simultaneously, and then fix the top of the mold body from multiple directions, so that the mold body can be fixed from four sides and the top, and the fixing effect is better.

[0015] 2. In the utility model, in use, the winding roller can be rotated through the annular plate, and the rotating rod is not rotated, at this time, the winding roller rotation will make the lengthened or shortened part of the pull rope not be rolled, then fixed by fixed bolt, at this time, the winding roller rotates again and makes the pull rope make the movable time of four sliding blocks different, and then changes the moving distance of four sliding blocks, so that the mold body of multiple lengths and widths is clamped from four sides at the same time, and the motor, first gear, rotating rod and second gear are protected through the setting of the protection box, so that the use is not affected by external contact, and the protection box is taken off from the base through the setting of magic tape, so that the length of the pull rope not be rolled is adjusted through the winding roller. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the first perspective in the embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the second perspective in the embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the first perspective in the embodiment of the utility model;

[0020] Figure 4 It is Figure 3 the enlarged structure schematic diagram of A in the embodiment of the utility model;

[0021] Figure 5 It is Figure 3A schematic view of a local enlarged structure;

[0022] Figure 6 A schematic view of a local enlarged structure;

[0023] In the figure: 1, base; 2, mold body; 3, sliding block; 4, first clamping plate; 5, first spring; 6, pull rope; 7, motor; 8, first gear; 9, rotating rod; 10, second gear; 11, winding roller; 12, annular plate; 13, fixing bolt; 14, sliding plate; 15, supporting block; 16, second clamping plate; 17, moving rod; 18, moving plate; 19, multi-stage telescopic hydraulic cylinder; 20, annular block; 21, second spring; 22, protection box. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Embodiment: refer to Figures 1-6 The utility model discloses a clamp for injection mold, including base 1 and support leg, the top of base 1 is provided with mold body 2, and the base 1 is provided with the clamping mechanism for fixing mold body 2.

[0026] The clamping mechanism includes four slide holes in the base 1, and the opposite inner walls of the four slide holes are provided with two slide rods, and the two slide rods are slidably connected with the sliding block 3, and the side of the four sliding blocks 3 is provided with the first clamping plate 4 through the limiting bolt, and the base 1 is provided with the adjustable driving assembly for moving the four sliding blocks 3, and the four sliding blocks 3 are provided with the moving groove, and the four moving grooves are movably provided with the supporting block 15, and the top of the four supporting blocks 15 is provided with the second clamping plate 16, and the base 1 is provided with the output assembly for moving the four supporting blocks 15, and the output assembly is movably connected with the sliding block 3.

[0027] By the above structure, in use, first, the mold body 2 is placed on the base 1, then the appropriate first clamping plate 4 is replaced through the limiting bolt, then the four sliders 3 are moved through the adjustable driving assembly, the movement of the four sliders 3 will make the four first clamping plates 4 move, and then simultaneously contact the mold body 2 from four sides, and the movement of the four sliders 3 will make the four supporting blocks 15 move through the output assembly, the movement of the four supporting blocks 15 will make the four second clamping plates 16 move, when the four first clamping plates 4 fix the mold body 2, the four second clamping plates 16 are above the mold body 2, then the four supporting blocks 15 are lowered through the output mechanism, the lowering of the four supporting blocks 15 will make the four second clamping plates 16 lower, and then the top of the mold body 2 is fixed from multiple directions, so that the mold body 2 can be fixed from four sides and the top, and the fixing effect is better.

[0028] As shown in Figure 1 , Figure 3 and Figure 4 , the adjustable driving assembly comprises four pull ropes 6 respectively installed on the side of the four sliders 3, a size is fixedly arranged on each of the four pull ropes 6, four rope holes matched with the pull ropes 6 are formed in the bottom of the base 1, a motor 7 is installed on the bottom of the base 1, a first gear 8 is installed on the output shaft of the motor 7, four rotating rods 9 are rotatably installed on the bottom of the base 1, a second gear 10 is installed on the bottom of each of the four rotating rods 9, each of the four second gears 10 is engaged with the first gear 8, a winding roller 11 is rotatably sleeved on each of the four rotating rods 9, a fixing unit is arranged on each of the four winding rollers 11, the other end of each of the four pull ropes 6 is installed on the winding roller 11, and an elastic reset unit is arranged on the side of each of the four sliders 3; the elastic reset unit comprises a first spring 5 installed on the side of the slider 3, and the other end of the first spring 5 is installed on the inner wall of the side of the sliding hole, so that the four sliders 3 can be moved simultaneously through the arrangement of the pull rope 6, the motor 7, the first gear 8, the rotating rod 9, the second gear 10, the winding roller 11 and the first spring 5.

[0029] Specifically, when the mold body 2 is fixed, the output of the motor 7 will make the first gear 8 rotate, the rotation of the first gear 8 will make the second gear 10 rotate, the rotation of the second gear 10 will make the winding roller 11 rotate, the rotation of the winding roller 11 will wind the pull rope 6, and then the four sliders 3 move, when the fixation of the mold body 2 is released, the winding of the pull rope 6 by the winding roller 11 is cancelled through the motor 7, at this time the slider 3 will reset under the action of the first spring 5 without force, so that the four sliders 3 move simultaneously.

[0030] As shown in Figure 4As shown, the fixing unit comprises an annular plate 12 mounted at the bottom of the winding roller 11, the outer wall of the annular plate 12 is provided with a fixing threaded hole, and a fixing bolt 13 is threadedly mounted on the fixing threaded hole and abuts against the rotating rod 9. This arrangement has the advantage that the moving distance of the sliding block 3 can be adjusted through the annular plate 12 and the fixing bolt 13.

[0031] Specifically, in use, first, the winding roller 11 is rotated through the annular plate 12, and the rotating rod 9 is rotated at the same time. At this time, the rotation of the winding roller 11 will make the unwound part of the pull rope 6 longer or shorter. Then, the fixing bolt 13 is fixed. At this time, the rotation of the winding roller 11 will make the four sliding blocks 3 have different movable time, thereby changing the moving distance of the four sliding blocks 3, so as to clamp the mold body 2 of various lengths and widths from four sides at the same time.

[0032] As shown in Figure 2 , Figure 3 , Figure 5 and Figure 6 , the output assembly comprises four lifting cavities respectively communicated with the four moving grooves, the opposite inner walls of the four lifting cavities are respectively provided with two fixing rods, the two fixing rods are slidably mounted on the sliding plate 14, the four supporting blocks 15 are respectively mounted on the top of the four sliding plates 14, the four sliding plates 14 are respectively provided with the moving rod 17, the bottom of the four sliding blocks 3 is provided with the moving hole matched with the moving rod 17, the bottom of the four moving rods 17 is provided with the moving plate 18, the bottom of the base 1 is provided with the mounting groove, the top inner wall of the mounting groove is provided with the multi-stage telescopic hydraulic cylinder 19, the output end of the multi-stage telescopic hydraulic cylinder 19 is provided with the annular block 20, the bottom of the annular block 20 is provided with the four avoiding holes matched with the moving rod 17, and the bottom of the four sliding plates 14 is provided with the elastic extrusion unit; the elastic extrusion unit comprises a second spring 21 mounted on the bottom of the sliding plate 14, and the other end of the second spring 21 is mounted on the bottom inner wall of the lifting cavity. This arrangement has the advantage that the four second clamping plates 16 can be moved simultaneously through the sliding plate 14, the moving rod 17, the moving plate 18, the multi-stage telescopic hydraulic cylinder 19, the annular block 20, the second spring 21 and the avoiding hole.

[0033] Specifically, when the first clamping plate 4 clamps the mold body 2, the moon-shaped rod 17 penetrates the avoiding hole, and the moving plate 18 is below the annular block 20, then the multi-stage telescopic hydraulic cylinder 19 is started, the output of the multi-stage telescopic hydraulic cylinder 19 makes the annular block 20 descend, the annular block 20 descends to extrude the moving plate 18 to make it descend, the moving plate 18 descends to make the sliding plate 14 descend through the moving rod 17, the sliding plate 14 descends to make the second clamping plate 16 descend through the supporting block 15, and then the four second clamping plates 16 simultaneously descend, when it is needed to release the clamping, the annular block 20 is reset through the multi-stage telescopic hydraulic cylinder 19, the annular block 20 resets to make the moving plate 18 not be stressed, at this time the sliding plate 14 is reset under the action of the second spring 21, and then the four second clamping plates 16 are simultaneously reset, so that the top of the mold body 2 is clamped or the clamping is cancelled from multiple directions

[0034] As shown in Figure 2 The bottom of the base 1 is provided with a protection box 22, and the bottom of the base 1 and the top of the protection box 22 are both provided with magic tapes, so that the motor 7, the first gear 8, the rotating rod 9 and the second gear 10 are protected through the protection box 22, and are prevented from being affected by external contact, and the protection box 22 is convenient to take off from the base 1 through the magic tapes, so that the contact protection is convenient, and the length of the pull rope 6 that is not wound is convenient to adjust through the winding roller 11.

[0035] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A clamp for injection moulds comprising a base (1) and supporting legs, characterised in that: The upper part of the base (1) is provided with a mold body (2), and the base (1) is provided with a clamping mechanism for fixing the mold body (2); The clamping mechanism comprises four slide holes formed in the base (1), and two slide rods are mounted on the opposite inner walls of each of the four slide holes; a sliding block (3) is sleeved on each two matching slide rods; a first clamping plate (4) is mounted on the side of each of the four sliding blocks (3) through a limiting bolt; an adjustable driving assembly is arranged on the base (1) to simultaneously move the four sliding blocks (3); a moving groove is formed in each of the four sliding blocks (3); a supporting block (15) is movably arranged in each of the four moving grooves; a second clamping plate (16) is mounted on the top of each of the four supporting blocks (15); and an output assembly is arranged on the base (1) to simultaneously move the four supporting blocks (15), and the output assembly is mounted in cooperation with the sliding blocks (3).

2. A clamp for injection molds according to claim 1, characterized in that: The adjustable driving assembly comprises a pull rope (6) mounted on the side of each of the four sliding blocks (3); a size is fixed on each of the four pull ropes (6); four rope holes corresponding to the pull ropes (6) are formed in the bottom of the base (1); a motor (7) is mounted on the bottom of the base (1); a first gear (8) is mounted on the output shaft of the motor (7); four rotating rods (9) are rotatably mounted on the bottom of the base (1); a second gear (10) is mounted on the bottom of each of the four rotating rods (9); each of the four second gears (10) is engaged with the first gear (8); a winding roller (11) is rotatably sleeved on each of the four rotating rods (9); a fixing unit is arranged on each of the four winding rollers (11); the other end of each of the four pull ropes (6) is mounted on the winding roller (11); and an elastic reset unit is arranged on the side of each of the four sliding blocks (3).

3. A clamp for injection molds according to claim 2, characterized in that: The fixing unit comprises an annular plate (12) mounted on the bottom of the winding roller (11); a fixing threaded hole is formed in the outer wall of the circumferential side of the annular plate (12); and a fixing bolt (13) is threadedly mounted in the fixing threaded hole and abuts against the rotating rod (9).

4. The clamp for injection molds of claim 2, wherein: The elastic reset unit comprises a first spring (5) mounted on the side of the sliding block (3), and the other end of the first spring (5) is mounted on the inner wall of the side of the slide hole.

5. The clamp for injection molds of claim 1, wherein: The output assembly comprises four lifting cavities communicated with the four moving grooves respectively and arranged on the four sliders (3), two fixed rods are arranged on the opposite inner walls of the four lifting cavities, a sliding plate (14) is arranged on each two fixed rods, four supporting blocks (15) are arranged on the top of the four sliding plates (14) respectively, a moving rod (17) is arranged on the bottom of each sliding plate (14), a moving hole adapted to the moving rod (17) is arranged on the bottom of each slider (3), a moving plate (18) is arranged on the bottom of each moving rod (17), an installation groove is arranged on the bottom of the base (1), a multi-stage telescopic hydraulic cylinder (19) is arranged on the top inner wall of the installation groove, an annular block (20) is arranged on the output end of the multi-stage telescopic hydraulic cylinder (19), four avoiding holes adapted to the moving rod (17) are arranged on the bottom of the annular block (20), and an elastic extrusion unit is arranged on the bottom of each sliding plate (14).

6. A clamp for injection molds according to claim 5, characterized in that: The elastic extrusion unit comprises a second spring (21) arranged on the bottom of the sliding plate (14), and the other end of the second spring (21) is arranged on the bottom inner wall of the lifting cavity.

7. The clamp for injection molds of claim 1, wherein: A protection box (22) is arranged below the base (1), and a magic tape is arranged on the bottom of the base (1) and the top of the protection box (22).

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