Injection mold clamping device for automobile injection molding part

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold clamping device for an automobile injection molding part, which comprises a table body, a mounting groove is horizontally formed in the upper surface of the table body, a threaded rod with opposite thread directions at the left end and the right end is horizontally and rotatably mounted in the mounting groove, and sliding blocks are symmetrically sleeved on the threaded rod in a threaded manner; a mounting block is fixedly mounted on the surface of the top end of the sliding block, a hollow rod is fixedly mounted on the surface of the mounting block, a piston rod is slidably and hermetically inserted in the hollow rod, a telescopic component is arranged in the hollow rod, and a mold is fixedly mounted at one end of the piston rod. A cavity is formed in the mold, two refrigeration boxes are fixedly installed on the upper surface of the table body, and the hollow rod communicates with the refrigeration boxes and the cavity through an air inlet pipe and an air outlet pipe correspondingly. And after the two dies are reset, cold air in the hollow rods can enter the dies, so that the dies are cooled, and the situation that the temperature of the surfaces of the dies is high and scalds are caused is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold clamping device for automobile injection molded parts. Background Art

[0002] In the production process of plastic products in automobiles, injection molds are usually used for plastic molding. The molten plastic is injected into the mold and cooled to obtain the plastic of the required shape. The mold needs to be clamped by a clamping device during use, and then the mold opening process is carried out.

[0003] A Chinese patent with publication number CN211390022U discloses an injection mold clamping device. By setting a reciprocating screw, when the motor rotates in the same direction, the two molds can be opened and closed reciprocatingly, which is convenient for work. By setting a second connecting rod, excessive pressure between the two molds can be avoided, thereby preventing the mold from deforming.

[0004] The above patent document can only quickly control the opening and closing of the two molds, but cannot cool the two molds. After the injection molding is completed, the surface temperature of the two molds may be high. When the staff touches them, they may be burned, which poses a certain safety hazard. Utility Model Content

[0005] The purpose of the utility model is to solve the following shortcomings in the prior art: the existing injection mold clamping device can only quickly control the opening and closing of two molds, but cannot cool the two molds. When the injection molding is completed, the surface temperature of the two molds may be high. When the staff touches them, they may be scalded, which poses certain safety hazards. A proposed injection mold clamping device for automobile injection molded parts is provided.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An injection mold clamping device for automobile injection molded parts, comprising a platform, a mounting groove is horizontally opened on the upper surface of the platform, a threaded rod with opposite thread directions at left and right ends is horizontally rotatably installed in the mounting groove, the threaded rod is controlled to rotate by a driving component, a slider is symmetrically threadedly sleeved on the threaded rod, a mounting block is fixedly installed on the surface of the top of the slider, a hollow rod is fixedly installed on the surface of the mounting block, a piston rod is inserted in a sliding seal in the hollow rod, a telescopic component is arranged in the hollow rod, a mold is fixedly installed on one end of the piston rod, a placement groove is opened on the upper surface of the platform, a locking component for locking two molds is arranged in the placement groove, and an unlocking component for releasing the lock of the two molds is arranged in the placement groove;

[0008] A cavity is provided in the mold, two refrigeration boxes are fixedly installed on the upper surface of the platform, and the hollow rod is connected with the refrigeration box and the cavity through an air inlet pipe and an air outlet pipe respectively, and a one-way valve is provided in the air inlet pipe and the air outlet pipe.

[0009] Preferably, the driving assembly comprises a driving motor fixedly mounted on the side wall of the platform, and the output shaft of the driving motor is fixedly connected to the threaded rod.

[0010] Preferably, the conducting direction of the one-way valve in the air inlet pipe is from the inside of the refrigeration box to the inside of the hollow rod, and the conducting direction of the one-way valve in the air outlet pipe is from the inside of the hollow rod to the cavity.

[0011] Preferably, the telescopic component comprises a telescopic spring, and two ends of the telescopic spring are fixedly connected to the mounting block and the piston rod respectively.

[0012] Preferably, the locking assembly includes two spring rods vertically fixed in the mounting grooves and two triangular locking blocks respectively fixed at the top ends of the two spring rods. The lower surface of the mold is provided with a triangular pressing groove and a locking opening for inserting the locking block. The inclined surfaces of the two pressing grooves are respectively arranged face to face with the inclined surfaces of the two locking blocks.

[0013] Preferably, the unlocking component includes two mounting plates respectively fixedly sleeved on two spring rods and two arc-shaped protrusions respectively fixedly mounted on the upper surfaces of the two mounting plates, and the arc-shaped surfaces of the two arc-shaped protrusions respectively correspond to the positions of one side of the two mounting blocks that are away from each other.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] When the two molds are controlled to separate, the cold air in the two refrigeration boxes will enter the two hollow rods respectively. When the two molds are reset, the cold air in the two hollow rods will enter the two molds respectively, thereby cooling the molds to avoid high surface temperature of the molds, which may cause burns. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a top view of a stereoscopic structure of an injection mold clamping device for automobile injection molded parts proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of a partial three-dimensional cross-sectional structure of a mounting block in an injection mold clamping device for automobile injection molded parts proposed by the utility model;

[0018] Figure 3 for Figure 1 A magnified view of the structure at center;

[0019] Figure 4 for Figure 1 A magnified view of the structure at B in the middle;

[0020] Figure 5 for Figure 2 Enlarged view of the structure at point C in the middle.

[0021] In the figure: 1 body, 2 threaded rod, 3 slider, 4 mounting block, 5 hollow rod, 6 piston rod, 7 mold, 8 refrigeration box, 9 air inlet pipe, 10 air outlet pipe, 11 driving motor, 12 telescopic spring, 13 spring rod, 14 locking block, 15 pressing groove, 16 locking mouth, 17 mounting plate, 18 arc-shaped protrusion. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.

[0024] Reference Figure 1-Figure 5 , an injection mold clamping device for automobile injection molded parts, comprising a platform 1, a mounting groove is horizontally opened on the upper surface of the platform 1, a threaded rod 2 with opposite thread directions at left and right ends is horizontally rotatably installed in the mounting groove, and the threaded rod 2 is controlled to rotate by a driving assembly, the driving assembly comprises a driving motor 11 fixedly mounted on the side wall of the platform 1, the output shaft of the driving motor 11 is fixedly connected to the threaded rod 2, a slider 3 is symmetrically threadedly sleeved on the threaded rod 2, a mounting block 4 is fixedly mounted on the surface of the top of the slider 3, a hollow rod 5 is fixedly mounted on the surface of the mounting block 4, a piston rod 6 is inserted in a sliding seal in the hollow rod 5, a telescopic component is arranged in the hollow rod 5, the telescopic component comprises a telescopic spring 12, the two ends of the telescopic spring 12 are respectively fixedly connected to the mounting block 4 and the piston rod 6, a mold 7 is fixedly installed at one end of the piston rod 6, an installation groove is opened on the upper surface of the platform 1, a locking assembly for locking two molds 7 is arranged in the installation groove, and an unlocking component for releasing the lock of the two molds 7 is arranged in the installation groove;

[0025] A cavity is provided in the mold 7, and two refrigeration boxes 8 are fixedly installed on the upper surface of the platform 1. The hollow rod 5 is connected to the refrigeration box 8 and the cavity through an air inlet pipe 9 and an air outlet pipe 10, respectively. Both the air inlet pipe 9 and the air outlet pipe 10 are provided with a one-way valve. The conduction direction of the one-way valve in the air inlet pipe 9 is from the inside of the refrigeration box 8 to the inside of the hollow rod 5, and the conduction direction of the one-way valve in the air outlet pipe 10 is from the inside of the hollow rod 5 to the cavity.

[0026] The driving motor 11 is started to control the threaded rod 2 to rotate. During the rotation of the threaded rod 2, the two sliders 3 threadedly sleeved on the threaded rod 2 will respectively carry the two molds 7 to move relative to each other in the horizontal direction. When the two molds 7 move to each other and abut against each other, they will be locked by the locking assembly, and then the molten plastic can be injected into the mold 7. After molding, the driving motor 11 is started again to control the two sliders 3 to move away from each other in the horizontal direction. In this process, since the two molds 7 are locked, the two molds 7 will not move, but the two sliders 3 will move, and the two sliders 3 are fixedly connected to the two molds 7 respectively. The piston rod 6 will not move either, but the two hollow rods 5 will move with the two sliders 3 respectively, so that the volume inside the hollow rod 5 increases and the pressure decreases, and the cold air in the refrigeration box 8 will enter the hollow rod 5 from the air inlet pipe 9 until the two sliders 3 move to the initial position, and the unlocking component will release the lock of the locking assembly on the two molds 7. At this time, the two molds 7 and the two piston rods 6 will quickly move and reset under the elastic potential energy of the telescopic spring 12. At this time, the volume inside the hollow rod 5 decreases and the pressure increases, and the cold air in the hollow rod 5 will enter the cavity opened in the mold 7 from the air outlet pipe 10, thereby having the effect of cooling the mold 7.

[0027] The locking assembly includes two spring rods 13 vertically fixedly installed in the placement groove and two triangular locking blocks 14 respectively fixedly installed at the top of the two spring rods 13. The lower surface of the mold 7 is provided with a triangular pressing groove 15 and a locking opening 16 for inserting the locking blocks 14. The inclined surfaces of the two pressing grooves 15 are respectively arranged face to face with the inclined surfaces of the two locking blocks 14.

[0028] When the two molds 7 approach each other, the distance between the mold 7 and the locking block 14 will gradually decrease, and the inclined surface of the locking block 14 will slide in contact with the inclined surface of the pressing groove 15. Under the action of the inclined surface pressing, the spring rod 13 will shrink until the two molds 7 are pressed against each other. The two locking blocks 14 will correspond to the positions of the two locking ports 16 respectively, and the pressing force exerted by the mold 7 on the locking block 14 disappears. The locking block 14 will quickly move up and reset under the elastic potential energy of the spring rod 13, and enter the locking port 16, thereby completing the locking of the mold 7.

[0029] The unlocking component includes two mounting plates 17 respectively fixedly sleeved on the two spring rods 13 and two arc-shaped protrusions 18 respectively fixedly mounted on the upper surfaces of the two mounting plates 17, and the arc-shaped surfaces of the two arc-shaped protrusions 18 respectively correspond to the positions of the surfaces of the two mounting blocks 4 that are away from each other;

[0030] After injection molding, when the two sliders 3 move away from each other in the horizontal direction, the distance between the mounting block 4 and the arc-shaped protrusion 18 will gradually shorten, and when the mounting block 4 abuts against the arc-shaped protrusion 18, under the action of the arc surface pressure, the arc-shaped protrusion 18 will move down with the spring rod 13, and then the locking block 14 will also move out of the locking port 16, thereby releasing the lock on the mold 7, and then the mold 7 will quickly move and reset under the elastic potential energy of the telescopic spring 12, and when the mounting block 4 moves to no longer abut against the arc-shaped protrusion 18, the arc-shaped protrusion 18 will quickly move up and reset under the elastic potential energy of the spring rod 13.

[0031] In the utility model, the threaded rod 2 is controlled to rotate. During the rotation of the threaded rod 2, the two sliders 3 threadedly sleeved on the threaded rod 2 will respectively carry the two molds 7 to move relative to each other in the horizontal direction. When the two molds 7 move to each other and abut against each other, they will be locked by the locking assembly, and then molten plastic can be injected into the mold 7. After molding, the two sliders 3 are controlled to move away from each other in the horizontal direction. In this process, since the two molds 7 are locked, the two molds 7 will not move, while the two sliders 3 will move, and the two piston rods 6 respectively fixedly connected to the two molds 7 will not move, but the two The hollow rod 5 will move with the two sliders 3 respectively, so that the volume inside the hollow rod 5 will increase and the pressure will decrease, and the cold air in the refrigeration box 8 will enter the hollow rod 5 from the air inlet pipe 9 until the two sliders 3 move to the initial position, and the unlocking component will release the lock of the locking assembly on the two molds 7. At this time, the two molds 7 and the two piston rods 6 will quickly move and reset under the elastic potential energy of the telescopic component. At this time, the volume inside the hollow rod 5 will decrease and the pressure will increase, and the cold air in the hollow rod 5 will enter the cavity opened in the mold 7 from the air outlet pipe 10, thereby having the effect of cooling the mold 7 and avoiding burns caused by the high surface temperature of the mold 7.

[0032] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection mold clamping device for automobile injection molded parts, comprising a platform (1), characterized in that: The upper surface of the platform (1) is provided with a mounting groove horizontally, a threaded rod (2) with threads on the left and right ends in opposite directions is horizontally rotatably mounted in the mounting groove, the threaded rod (2) is controlled to rotate by a driving component, a slider (3) is symmetrically threadedly sleeved on the threaded rod (2), a mounting block (4) is fixedly mounted on the surface of the top end of the slider (3), a hollow rod (5) is fixedly mounted on the surface of the mounting block (4), a piston rod (6) is inserted in a sliding seal in the hollow rod (5), a telescopic component is provided in the hollow rod (5), a mold (7) is fixedly mounted on one end of the piston rod (6), the upper surface of the platform (1) is provided with a placement groove, a locking component for locking the two molds (7) is provided in the placement groove, and an unlocking component for unlocking the two molds (7) is provided in the placement groove; A cavity is provided in the mold (7), two refrigeration boxes (8) are fixedly mounted on the upper surface of the platform (1), and the hollow rod (5) is connected to the refrigeration box (8) and the cavity via an air inlet pipe (9) and an air outlet pipe (10), respectively. Both the air inlet pipe (9) and the air outlet pipe (10) are provided with a one-way valve.

2. The injection mold clamping device for automobile injection molded parts according to claim 1, characterized in that: The driving assembly comprises a driving motor (11) fixedly mounted on a side wall of the platform body (1), and an output shaft of the driving motor (11) is fixedly connected to a threaded rod (2).

3. The injection mold clamping device for automobile injection molded parts according to claim 1, characterized in that: The conducting direction of the one-way valve in the air inlet pipe (9) is from the inside of the refrigeration box (8) to the inside of the hollow rod (5), and the conducting direction of the one-way valve in the air outlet pipe (10) is from the inside of the hollow rod (5) to the inside of the cavity.

4. The injection mold clamping device for automobile injection molded parts according to claim 1, characterized in that: The telescopic component comprises a telescopic spring (12), and two ends of the telescopic spring (12) are respectively fixedly connected to the mounting block (4) and the piston rod (6).

5. The injection mold clamping device for automobile injection molded parts according to claim 1, characterized in that: The locking assembly comprises two spring rods (13) vertically fixedly mounted in the mounting grooves and two triangular locking blocks (14) respectively fixedly mounted on the top ends of the two spring rods (13). The lower surface of the mold (7) is provided with a triangular pressing groove (15) and a locking opening (16) for inserting the locking blocks (14). The inclined surfaces of the two pressing grooves (15) are respectively arranged face to face with the inclined surfaces of the two locking blocks (14).

6. The injection mold clamping device for automobile injection molded parts according to claim 5, characterized in that: The unlocking component comprises two mounting plates (17) respectively fixedly sleeved on two spring rods (13) and two arc-shaped protrusions (18) respectively fixedly mounted on the upper surfaces of the two mounting plates (17), wherein the arc-shaped surfaces of the two arc-shaped protrusions (18) respectively correspond to the positions of the surfaces of the two mounting blocks (4) which are away from each other.

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