Plastic mold convenient to position

Abstract

The utility model relates to the technical field of molds, in particular to a plastic mold convenient to position. The die comprises an upper die body and a lower die body, four positioning rods are fixedly connected to the surface of the lower die body, four positioning holes are formed in the upper die body, the positioning rods are connected with the inner surfaces of the positioning holes of the upper die body in a sliding mode, sliding holes are formed in the two sides of the lower die body, and positioning devices are arranged on the inner surfaces of the sliding holes of the lower die body. The positioning device comprises two long rods, the two long rods are in sliding connection with the inner surface of the lower die sliding hole, one end of each long rod is fixedly connected with a positioning plate, and the end, away from the positioning plate, of each long rod is fixedly connected with a special-shaped block. The problems that when a worker carries out compression molding on a product, the worker usually needs to place the product which is not subjected to compression molding in an inner cavity of a lower mold firstly, so that an upper mold is stressed to impact and carry out compression molding on the lower mold, the product is unstable and shakes in the compression molding process, the accuracy of the compression-molded product is reduced, and product materials are wasted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a plastic mold which is easy to position. Background Art

[0002] Plastic mold is the abbreviation of a combined mold used for compression molding, extrusion molding, injection molding, blow molding and low-foaming molding. The coordinated changes of the mold convex and concave molds and the auxiliary molding system can process a series of plastic parts of different shapes and sizes.

[0003] A Chinese patent application CN202321757702.5 discloses a plastic mold for a plastic part, and the key points of its technical solution are: 1. The plastic mold for the plastic part starts the push rod, and the output end of the push rod drives the two T-shaped plates to shrink toward the second fixed column through the third fixed column until the two T-shaped plates rotate about the axis of the fixed column and stop, and then the motor is started, the output shaft rotates, and the motor gear on it drives the gear to rotate. When the gear rotates, the belt on it is driven to rotate through the pulleys at both ends of itself, so that the belt drives the other two pulleys to rotate at the same time. When the other two pulleys rotate, the corresponding pinion is driven to rotate through the pinion shaft inside. When the pinion rotates, it meshes with the rack to drive the rack and the slide bar to move backward in the axial direction of the C-shaped slideway, and at the same time drives The brush rollers on the two brush shafts enter between the fixed mold and the movable mold. Through the operation of the above structure, the residual plastic residues in the mold cavity can be cleaned after each plastic molding of the mold is completed, avoiding molding failure caused by excessive residual plastic residues in the cavity, so that the next use will not be affected by the residual plastic residues, thereby improving the quality of the plastic parts; 2. The plastic mold of the plastic part rotates through the friction between the brush roller and the fixed mold and the movable mold, thereby cleaning up the plastic debris between the fixed mold and the movable mold. Through the operation of the above structure, the residual plastic debris in the mold can be quickly and effectively cleaned, avoiding the problem that the plastic debris in the mold cavity cannot be effectively cleaned and sticks to the inner wall of the mold cavity, affecting the quality of plastic molding, thereby improving the use effect of the plastic mold.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when workers perform compression molding on a product, they usually need to place the uncompression molded product in the inner cavity of the lower mold first, so that the upper mold is subjected to force to impact the lower mold for compression molding. During the compression molding process, the product will shake unstably, resulting in a decrease in the accuracy of the compression molded product and waste of product materials. Therefore, in view of the above problems, a plastic mold that is easy to position is proposed. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that the upper mold is subjected to force to impact the lower mold during compression molding, and the product will shake unstably during the compression molding process, resulting in reduced accuracy of the compression molded product and waste of product materials, and to propose a plastic mold that is easy to position.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plastic mold that is easy to position, comprising an upper mold and a lower mold, the surface of the lower mold is fixedly connected with four positioning rods, the upper mold is provided with four positioning holes, the positioning rods are slidably connected to the inner surfaces of the upper mold positioning holes, sliding holes are provided on both sides of the lower mold, and the inner surface of the lower mold sliding hole is provided with a positioning device, the positioning device comprises two long rods, the two long rods are respectively slidably connected to the inner surface of the lower mold sliding hole, one end of the long rod is fixedly connected with a positioning plate, the end of the long rod away from the positioning plate is fixedly connected with a special-shaped block, the arc surface of the long rod is sleeved with a first spring, and the two ends of the first spring are respectively fixedly connected to the special-shaped block and the lower mold.

[0007] The effect achieved by the above components is: by setting the positioning device, the effect of limiting the processed product is achieved, avoiding the situation that when the staff perform compression molding on the product, the staff usually needs to place the uncompression molded product in the inner cavity of the lower mold first, so that the upper mold is subjected to force to impact the lower mold for compression molding. During the compression molding process, the product will shake unstably, resulting in a decrease in the accuracy of the compression molded product and waste of product materials, thereby improving the stability of the device.

[0008] Preferably, the side wall of the lower mold is fixedly connected with an elliptical plate, a screw is rotatably connected inside the elliptical plate, one end of the screw is rotatably connected with a movable plate, and the movable plate is trapezoidal in shape.

[0009] The effect achieved by the above components is: achieving the effect of limiting the position of the positioning plate, so that the staff can take out and place the products of the lower mold, thereby improving the practicability of the device.

[0010] Preferably, a limiting rod is slidably inserted in the elliptical plate, and one end of the limiting rod is fixedly connected to the special-shaped block.

[0011] The effect achieved by the above components is: preventing the moving plate from rotating along with the rotation of the screw rod.

[0012] Preferably, one end of the screw rod away from the special-shaped block is fixedly connected to a handle, and a surface of the handle has a plurality of protrusions.

[0013] The effect achieved by the above components is: to facilitate the staff to stably rotate the screw rod to accurately control the position of the moving plate.

[0014] Preferably, the surface of the upper mold is provided with an auxiliary device, and the auxiliary device includes four short rods, and the four short rods are fixedly connected to the surface of the upper mold, the arc surface of the positioning rod is slidably connected with a lubrication pad, the surface of the lubrication pad is fixedly connected with a connecting rod, the arc surface of the connecting rod is provided with a moving hole, the short rod is slidably connected to the inner surface of the moving hole of the connecting rod, the arc surface of the connecting rod is provided with a mounting hole, the arc surface of the short rod is provided with a mounting groove, and an L-shaped plate is fixedly connected to the side of the upper mold close to the short rod, an insertion rod is slidably inserted in the L-shaped plate, and one end of the insertion rod is fixedly connected to the mounting plate.

[0015] The effect achieved by the above components is: by setting the auxiliary device, the positioning rod is lubricated, so that the degree of wear caused by friction of the positioning rod during repeated compression molding is reduced, and the service life of the device is increased.

[0016] Preferably, the arc surface of the insertion rod is sleeved with a second spring, and two ends of the second spring are fixedly connected to the mounting plate and the L-shaped plate respectively.

[0017] The effect achieved by the above components is that the elastic force of the second spring drives the insertion rod to pass through the installation hole and insert into the installation groove, thereby improving the stability of the device.

[0018] Preferably, a locking hole is provided on the arc surface of the insertion rod, and a locking rod is slidably inserted into the L-shaped plate.

[0019] The effect achieved by the above components is: the position of the insertion rod is limited to facilitate the staff to replace the lubrication pad.

[0020] In summary, the beneficial effects of the utility model are:

[0021] 1. In the utility model, by setting a positioning device, the effect of limiting the position of the processed product is achieved, which avoids the situation that when the staff perform compression molding on the product, the staff usually needs to place the uncompression molded product in the inner cavity of the lower mold first, so that the upper mold is forced to impact the lower mold for compression molding. During the compression molding process, the product will shake unstably, resulting in a decrease in the accuracy of the compression molded product and a waste of product materials, thereby improving the stability of the device.

[0022] 2. In the utility model, by providing an auxiliary device, the positioning rod is lubricated, so that the degree of wear of the positioning rod caused by friction during repeated compression molding is reduced, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2It is a structural schematic diagram of the positioning device in the utility model;

[0025] Figure 3 For the utility model Figure 2 A magnified image of point A;

[0026] Figure 4 It is a structural schematic diagram of the auxiliary device in the utility model.

[0027] Legend: 1. Lower die; 2. Positioning rod; 3. Upper die; 4. Positioning device; 41. Long rod; 42. Positioning plate; 43. Special-shaped block; 44. First spring; 45. Elliptical plate; 46. Screw; 47. Moving plate; 48. Limit rod; 49. Handle; 5. Auxiliary device; 51. Short rod; 52. Connecting rod; 53. Lubricating pad; 54. L-shaped plate; 55. Insert rod; 56. Mounting plate; 57. Second spring; 58. Clamping rod; 59. Moving hole. DETAILED DESCRIPTION

[0028] Reference Figure 1 As shown, the utility model provides a technical solution: a plastic mold that is easy to position, including an upper mold 3 and a lower mold 1, the surface of the lower mold 1 is fixedly connected with four positioning rods 2, the upper mold 3 is provided with four positioning holes, the positioning rods 2 are slidably connected to the inner surfaces of the positioning holes of the upper mold 3, and sliding holes are provided on both sides of the lower mold 1. The inner surface of the sliding hole of the lower mold 1 is provided with a positioning device 4. By setting the positioning device 4, the effect of limiting the processed product is achieved, avoiding that when the staff performs compression molding on the product, usually the staff needs to place the uncompression molded product in the inner cavity of the lower mold 1 first, so that the upper mold 3 is forced to impact the lower mold 1 for compression molding, and the product will shake unstably during the compression molding process, resulting in a decrease in the accuracy of the compression molded product and a waste of product materials, thereby improving the stability of the device, and the surface of the upper mold 3 is provided with an auxiliary device 5. By setting the auxiliary device 5, the effect of lubricating the positioning rod 2 is achieved, so that the positioning rod 2 can reduce the degree of wear caused by friction during repeated compression molding, thereby improving the service life of the device.

[0029] The specific settings and functions of the positioning device 4 and the auxiliary device 5 are described in detail below.

[0030] Reference Figure 2 and Figure 3As shown, in this embodiment: the positioning device 4 includes two long rods 41, the two long rods 41 are respectively slidably connected to the inner surface of the sliding hole of the lower mold 1, one end of the long rod 41 is fixedly connected to a positioning plate 42, and the end of the long rod 41 away from the positioning plate 42 is fixedly connected to a special-shaped block 43, the arc surface of the long rod 41 is sleeved with a first spring 44, and the two ends of the first spring 44 are respectively fixedly connected to the special-shaped block 43 and the lower mold 1, and the side wall of the lower mold 1 is fixedly connected to an elliptical plate 45, and a screw 46 is rotatably connected in the elliptical plate 45, and one end of the screw 46 is rotatably connected to a moving plate 47, and the shape of the moving plate 47 is trapezoidal, and the rotating screw 46 rotates in the elliptical plate 45, and the screw 46 drives the moving plate 47 to move, and the moving plate 47 slides on the surface of the special-shaped block 43, and the special-shaped block 43 drives the long rod 41 to slide on the inner surface of the sliding hole of the lower mold 1 The long rod 41 drives the positioning plate 42 to move, thereby achieving the effect of limiting the position of the positioning plate 42, so that the staff can take out and place the products of the lower mold 1, thereby improving the practicability of the device. A limiting rod 48 is slidably inserted in the elliptical plate 45, and one end of the limiting rod 48 is fixedly connected to the special-shaped block 43. The rotating screw 46 rotates in the elliptical plate 45, and the screw 46 drives the movable plate 47 to move. The movable plate 47 drives the limiting rod 48 to slide in the elliptical plate 45, thereby avoiding the situation that the movable plate 47 rotates with the rotation of the screw 46. The end of the screw 46 away from the special-shaped block 43 is fixedly connected with a handle 49, and the surface of the handle 49 has several convex points. Rotating the handle 49 drives the screw 46 to rotate in the elliptical plate 45, so that the staff can stably rotate the screw 46 and accurately control the position of the movable plate 47.

[0031] Reference Figure 4As shown, specifically, the auxiliary device 5 includes four short rods 51, which are fixedly connected to the surface of the upper mold 3, the arc surface of the positioning rod 2 is slidably connected with a lubricating pad 53, the surface of the lubricating pad 53 is fixedly connected with a connecting rod 52, the arc surface of the connecting rod 52 is provided with a moving hole 59, the short rod 51 is slidably connected to the inner surface of the moving hole 59 of the connecting rod 52, the arc surface of the connecting rod 52 is provided with a mounting hole, the arc surface of the short rod 51 is provided with a mounting groove, an L-shaped plate 54 is fixedly connected to one side of the upper mold 3 close to the short rod 51, an insertion rod 55 is slidably inserted in the L-shaped plate 54, one end of the insertion rod 55 is fixedly connected to a mounting plate 56, and the arc surface of the insertion rod 55 is sleeved with a second spring 57, the second spring The two ends of 57 are fixedly connected to the mounting plate 56 and the L-shaped plate 54 respectively, and the connecting rod 52 is pushed to drive the lubricating pad 53 to move until the short rod 51 slides with the inner surface of the movable hole 59, and the connecting rod 52 is squeezed with the insertion rod 55 until the insertion rod 55 is aligned with the mounting hole of the connecting rod 52. The elastic force of the second spring 57 drives the insertion rod 55 to pass through the mounting hole and insert into the mounting groove, thereby improving the stability of the device. A card hole is provided on the arc surface of the insertion rod 55, and a card rod 58 is slidably inserted in the L-shaped plate 54. The mounting plate 56 is pulled to drive the insertion rod 55 to slide in the L-shaped plate 54, and the card rod 58 is inserted into the card slot of the insertion rod 55, thereby limiting the position of the insertion rod 55, so that the staff can replace the lubricating pad 53.

[0032] Working principle: when the staff needs to perform compression molding on the product, the staff pushes the product to slide in the inner cavity of the lower mold 1 and squeeze it with the positioning plate 42. At this time, the positioning plate 42 drives the long rod 41 to slide on the inner surface of the sliding hole of the lower mold 1. At this time, the first spring 44 is in a stretched state. Until the product is placed, the elastic force of the spring drives the long rod 41 to slide on the inner surface of the sliding hole of the lower mold 1. The long rod 41 drives the positioning plate 42 to move and abut against the product. When the staff needs to take out the compressed product, the handle 49 is turned to drive the screw 46 to rotate in the elliptical plate 45, and the screw 46 drives the moving plate 47 The movable plate 47 drives the limiting rod 48 to rotate in the elliptical plate 45, and the movable plate 47 moves on the surface of the special-shaped block 43. At this time, the special-shaped block 43 drives the long rod 41 to slide on the inner surface of the sliding hole of the lower mold 1 to release the clamping, thereby achieving the effect of limiting the processed product and avoiding the need for the staff to place the unmolded product in the inner cavity of the lower mold 1 when the product is molded. Therefore, the upper mold 3 is forced to impact the lower mold 1 for molding. During the molding process, the product will shake unstably, resulting in a decrease in the accuracy of the molded product and a waste of product materials, thereby improving the stability of the device.

[0033] When the worker needs to install the anti-slip pad, the lubricating pad 53 is moved by pushing the connecting rod 52 until the short rod 51 slides with the inner surface of the movable hole 59, the connecting rod 52 is squeezed with the insertion rod 55 until the insertion rod 55 is aligned with the mounting hole of the connecting rod 52, the elastic force of the second spring 57 drives the insertion rod 55 to pass through the mounting hole and insert into the mounting groove, the mounting plate 56 is pulled to drive the insertion rod 55 to slide in the L-shaped plate 54, and the clamping rod 58 is inserted into the clamping groove of the insertion rod 55, thereby limiting the position of the insertion rod 55, so that the staff can replace the lubricating pad 53, and achieve the effect of lubricating the positioning rod 2, so that the positioning rod 2 can reduce the degree of wear caused by friction during repeated compression molding, thereby increasing the service life of the device.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A plastic mold that is easy to position, comprising an upper mold (3) and a lower mold (1), characterized in that: The surface of the lower mold (1) is fixedly connected with four positioning rods (2), the upper mold (3) is provided with four positioning holes, the positioning rods (2) are slidably connected with the inner surfaces of the positioning holes of the upper mold (3), sliding holes are provided on both sides of the lower mold (1), and the inner surfaces of the sliding holes of the lower mold (1) are provided with positioning devices (4), the positioning devices (4) include two long rods (41), the two long rods (41) are respectively slidably connected with the inner surfaces of the sliding holes of the lower mold (1), one end of the long rod (41) is fixedly connected with a positioning plate (42), the end of the long rod (41) away from the positioning plate (42) is fixedly connected with a special-shaped block (43), the arc surface of the long rod (41) is sleeved with a first spring (44), and the two ends of the first spring (44) are respectively fixedly connected with the special-shaped block (43) and the lower mold (1).

2. A plastic mold that is easy to position according to claim 1, characterized in that: An elliptical plate (45) is fixedly connected to the side wall of the lower mold (1), a screw rod (46) is rotatably connected inside the elliptical plate (45), one end of the screw rod (46) is rotatably connected to a movable plate (47), and the movable plate (47) is in a trapezoidal shape.

3. A plastic mold that is easy to position according to claim 2, characterized in that: A limiting rod (48) is slidably inserted in the elliptical plate (45), and one end of the limiting rod (48) is fixedly connected to the special-shaped block (43).

4. A plastic mold that is easy to position according to claim 2, characterized in that: One end of the screw rod (46) away from the special-shaped block (43) is fixedly connected to a handle (49), and a surface of the handle (49) has a plurality of protrusions.

5. The plastic mold for easy positioning according to claim 1, characterized in that: The surface of the upper mold (3) is provided with an auxiliary device (5), and the auxiliary device (5) includes four short rods (51), and the four short rods (51) are fixedly connected to the surface of the upper mold (3); the circular arc surface of the positioning rod (2) is slidably connected with a lubricating pad (53), and the surface of the lubricating pad (53) is fixedly connected with a connecting rod (52), and the circular arc surface of the connecting rod (52) is provided with a moving hole (59), and the short rod (51) is slidably connected with the inner surface of the moving hole (59) of the connecting rod (52), and the circular arc surface of the connecting rod (52) is provided with a mounting hole, and the circular arc surface of the short rod (51) is provided with a mounting groove, and the upper mold (3) is fixedly connected with an L-shaped plate (54) on one side close to the short rod (51), and an insertion rod (55) is slidably inserted in the L-shaped plate (54), and one end of the insertion rod (55) is fixedly connected with a mounting plate (56).

6. A plastic mold that is easy to position according to claim 5, characterized in that: The arc surface of the insert rod (55) is sleeved with a second spring (57), and the two ends of the second spring (57) are respectively fixedly connected to the mounting plate (56) and the L-shaped plate (54).

7. A plastic mold that is easy to position according to claim 6, characterized in that: A locking hole is provided on the arc surface of the insertion rod (55), and a locking rod (58) is slidably inserted into the L-shaped plate (54).

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