Automobile injection molding part production mold capable of being quickly replaced

Abstract

The utility model discloses an automobile injection-molded part production mold capable of quickly changing a mold, which comprises a lower mold base, a lower mold core arranged at the top of the lower mold base through an assembling mechanism, guide support rods arranged at the tops of the lower mold base on two opposite sides of the lower mold core, a top plate arranged at the tops of the guide support rods, a hydraulic cylinder arranged at the top of the top plate, and a lifting plate arranged below the top plate, the two opposite ends of the lifting plate are slidably arranged on the guide supporting rods through guide holes, the output end of the hydraulic cylinder is connected with the top of the lifting plate through a hydraulic rod, the bottom of the lifting plate is provided with an upper mold core through a connecting mechanism, an ejection mechanism is arranged on the lower mold base below the lower mold core, and an ejection hole corresponding to the ejection mechanism is formed in the bottom of the lower mold core. According to the utility model, a series of structures are arranged, so that the mold core on the mold can be conveniently and quickly positioned and replaced, the equipment stability is good, the synchronous ejection movement of the two ejection rods on the lower mold base and the ejection balance of the mold are realized, and the detachable and replaceable lower mold core is positioned.

Description

Technical Field

[0001] This utility model relates to the field of automotive injection mold technology, specifically to an automotive injection mold production mold with quick mold change capability. Background Technology

[0002] Automotive injection molded parts refer to plastic products manufactured through injection molding, and are widely used in various parts of automobile manufacturing. Injection molding is a process in which molten plastic material is injected into a mold, and after cooling and solidification, it forms a part of the desired shape. This method has advantages such as high production efficiency, high dimensional accuracy, and relatively low cost.

[0003] Currently, the upper and lower mold cores on the mold are fixed to the upper and lower mold bases with bolts. Although the upper and lower mold cores and the upper and lower mold bases can be disassembled, the disassembly and assembly lacks positioning. The upper and lower mold cores need to be aligned when disassembling, replacing and installing, which is inconvenient. In addition, the mold has a single ejection point, resulting in poor injection ejection balance. Utility Model Content

[0004] The purpose of this invention is to provide a quick-change mold for producing automotive injection molded parts, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-change automotive injection mold, comprising a lower mold base, a lower mold core being provided on the top of the lower mold base via an assembly mechanism, guide rods being provided on the top of the lower mold base on both opposite sides of the lower mold core, a top plate being provided on the top of the guide rods, a hydraulic cylinder being provided on the top of the top plate, a lifting plate being provided below the top plate, and a lifting plate being provided at both opposite ends of the lifting plate being slidably mounted on the guide rods via guide holes, the output end of the hydraulic cylinder being connected to the top of the lifting plate via a hydraulic rod, an upper mold core being provided at the bottom of the lifting plate via a connecting mechanism, an ejection mechanism being provided on the lower mold base below the lower mold core, and an ejection hole corresponding to the ejection mechanism being provided at the bottom of the lower mold core.

[0006] Preferably, the assembly mechanism includes a positioning block, a mounting groove, a positioning slot, and a fixing screw. The top of the lower mold base is provided with a mounting groove, and positioning blocks are provided on both opposite sides of the lower mold core. The positioning blocks are provided with positioning holes. The top of the lower mold base on both opposite sides of the mounting groove is provided with a positioning slot. A fixing screw is provided on the lower mold base on the side of the positioning slot away from the mounting groove through a threaded hole. The lower mold core is located in the mounting slot and is positioned and fixed to the lower mold base by the fixing screw.

[0007] Preferably, the connecting mechanism includes a mounting plate and an assembly screw. Mounting plates are provided on both opposite sides of the upper mold core, and an assembly screw is provided at the bottom of the lifting plate. The assembly screw passes through the mounting plate via a mounting hole and is threadedly connected to a nut.

[0008] Preferably, the ejection mechanism includes an ejection rod, a screw sleeve, a threaded rod, a bevel gear set, and a servo motor. The ejection rod is provided on the lower mold base at the bottom of the mounting groove. A screw sleeve is provided on one side of the lower end of the ejection rod. A threaded rod is provided in the lower mold base on one side of the ejection rod. The screw sleeve is threaded onto the threaded rod. The bottom of the threaded rod is connected to the bevel gear set below the lower mold base. One side of the bevel gear set is connected to the output end of the servo motor.

[0009] Preferably, there are two ejector rods, which are symmetrically arranged. There are also two threaded rods and two bevel gear sets, which are connected by a connecting rod.

[0010] Preferably, the upper end of the ejector rod is located inside the mounting groove, and the ejector rod inside the mounting groove is located inside the ejector hole of the lower mold core. The ejection length of the ejector rod is greater than the depth of the mounting groove.

[0011] Preferably, the lower mold base has support seats on both opposite sides of its bottom, and the bottom of the support seats is provided with suction cups.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This automotive injection mold for quick mold changing uses a lower mold core mounted on the lower mold base to cooperate with an upper mold core on the lifting plate. Combined with a hydraulic cylinder on the top plate, it is used for the injection molding production of automotive injection molded parts. The positioning block cooperates with the positioning groove and the fixing screw. The lower mold core is easy to disassemble and assemble on the lower mold base. The mounting plate and the assembly screw cooperate to facilitate the disassembly and assembly of the upper mold core and the lifting plate. This allows for quick positioning and replacement of the mold core on the mold, and the equipment has good stability.

[0014] 2. This automotive injection mold that allows for quick mold changes utilizes an ejection mechanism mounted on the lower mold base. This mechanism, along with a threaded sleeve, threaded rod, bevel gear set, and servo motor, enables the synchronous ejection of two ejector rods on the lower mold base. This ensures balanced mold ejection, with the upper end of the ejector rod positioned within the mounting groove. The lower mold core has an ejection hole, and the ejector rod inside the mounting groove is inserted into the ejection hole, thus providing positioning for the detachable and replaceable lower mold core. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the lower mold base in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the lower mold core in this utility model.

[0018] In the diagram: 1. Lower mold base; 2. Lower mold core; 21. Positioning block; 3. Guide rod; 31. Top plate; 4. Lifting plate; 41. Mounting plate; 42. Assembly screw; 5. Upper mold core; 6. Ejection mechanism; 61. Ejection rod; 62. Screw sleeve; 63. Threaded rod; 64. Bevel gear set; 65. Servo motor; 7. Hydraulic cylinder; 8. Mounting groove; 9. Positioning groove; 10. Fixing screw; 11. Support base. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] like Figures 1 to 3 As shown, this embodiment of the automotive injection mold for quick mold changing includes a lower mold base 1. The top of the lower mold base 1 is provided with a lower mold core 2 via an assembly mechanism. Guide rods 3 are provided on the top of the lower mold base 1 on both sides of the lower mold core 2. A top plate 31 is provided on the top of the guide rods 3. A hydraulic cylinder 7 is provided on the top of the top plate 31. A lifting plate 4 is provided below the top plate 31. The two ends of the lifting plate 4 are slidably mounted on the guide rods 3 via guide holes. The output end of the hydraulic cylinder 7 is connected to the top of the lifting plate 4 via a hydraulic rod. An upper mold core 5 is provided at the bottom of the lifting plate 4 via a connecting mechanism. An ejection mechanism 6 is provided on the lower mold base 1 below the lower mold core 2. An ejection hole corresponding to the ejection mechanism 6 is provided at the bottom of the lower mold core 2, which facilitates quick positioning and replacement of the mold core on the mold. The equipment has good stability and the mold ejection is balanced.

[0022] Specifically, the assembly mechanism includes a positioning block 21, a mounting groove 8, a positioning groove 9, and a fixing screw 10. The top of the lower mold base 1 is provided with a mounting groove 8, and the lower mold core 2 is provided with positioning blocks 21 on both opposite sides. The positioning blocks 21 are provided with positioning holes. The top of the lower mold base 1 on both opposite sides of the mounting groove 8 is provided with a positioning groove 9. The lower mold base 1 on the side of the positioning groove 9 away from the mounting groove 8 is provided with a fixing screw 10 through a threaded hole. The lower mold core 2 is located in the mounting groove 8 and is positioned and fixed to the lower mold base 1 by the fixing screw 10. The positioning and disassembly of the lower mold core 2 and the lower mold base 1 are convenient.

[0023] Furthermore, the connecting mechanism includes a mounting plate 41 and an assembly screw 42. Mounting plates 41 are provided on both sides of the upper mold core 5, and an assembly screw 42 is provided at the bottom of the lifting plate 4. The assembly screw 42 passes through the mounting plate 41 through the mounting hole and is threadedly connected to the nut. The upper mold core 5 and the lifting plate 4 are easy to assemble and disassemble.

[0024] Furthermore, the ejection mechanism 6 includes an ejector rod 61, a screw sleeve 62, a threaded rod 63, a bevel gear set 64, and a servo motor 65. The ejector rod 61 is provided on the lower mold base 1 at the bottom of the mounting groove 8. A screw sleeve 62 is provided on one side of the lower end of the ejector rod 61. A threaded rod 63 is provided in the lower mold base 1 on one side of the ejector rod 61. The screw sleeve 62 is threaded onto the threaded rod 63. The bottom of the threaded rod 63 is connected to the bevel gear set 64 below the lower mold base 1. One side of the bevel gear set 64 is connected to the output end of the servo motor 65. The servo motor 65 drives the bevel gear set 64 to rotate, which drives the threaded rod 63 to rotate in the lower mold base 1. The screw sleeve 62 threaded on the threaded rod 63 drives the ejector rod 61 to move upward. The two ejector rods 61 eject the automotive injection molded part in the lower mold core 2.

[0025] Furthermore, there are two ejector rods 61, which are symmetrically arranged. There are also two threaded rods 63 and two bevel gear sets 64. The two bevel gear sets 64 are connected by a connecting rod to realize the synchronous ejection movement of the two ejector rods 61 on the lower mold base 1, and the mold ejection is balanced.

[0026] Furthermore, the upper end of the ejector rod 61 is located inside the mounting groove 8, and the ejector rod 61 inside the mounting groove 8 is located inside the ejection hole of the lower mold core 2, forming a limiting effect. The ejection length of the ejector rod 61 is greater than the depth of the mounting groove 8, which can completely eject the injection molded part inside the lower mold core 2, making mold material discharge convenient.

[0027] Furthermore, support seats 11 are provided on both sides of the bottom of the lower mold base 1. The bottom of the support seats 11 is equipped with suction cups, and the support seats 11 provide stable support for the lower mold base 1.

[0028] The usage method of this embodiment is as follows: The hydraulic cylinder 7 on the top plate 31 drives the lifting plate 4 to move up and down on the guide support rod 3 via the hydraulic rod, which drives the upper mold core 5 to move down. The upper mold core 5 and the lower mold core 2 are closed to produce the injection molded automotive parts. After injection molding, the lifting plate 4 and the upper mold core 5 move up. The servo motor 65 drives the bevel gear set 64 to rotate, which drives the threaded rod 63 to rotate in the lower mold base 1. The threaded sleeve 62 on the threaded rod 63 drives the ejector rod 61 to move up. The two ejector rods 61 eject the automotive injection molded parts in the lower mold core 2. Then the ejector mechanism 6 resets, realizing the synchronous ejection movement of the two ejector rods 61 on the lower mold base 1. The mold ejection is balanced. The top of the ejector rod 61 moves down to the ejection hole and keeps it at the same level as the injection groove of the lower mold core 2. The fixing screw 10 on the lower mold base 1 is loosened. The fixing screw 10 moves out of the positioning hole of the positioning block 21. The lower mold core 2 on the lower mold base 1 is then removed. Remove the new lower mold core 2 and install it in the mounting groove 8. Insert the positioning block 21 into the positioning groove 9. Insert the ejector rod 61 in the mounting groove 8 into the ejector hole of the lower mold core 2. The ejector rod 61 serves to position the detachable and replaceable lower mold core 2. Tighten the fixing screw 10. The fixing screw 10 is inserted into the positioning hole of the positioning block 21 to fix the lower mold core 2 to the lower mold base 1. The lower mold core 2 is easy to install and remove on the lower mold base 1. Unscrew the nut on the assembly screw 42 and remove the upper mold core 5 from the bottom of the lifting plate 4. Install the mounting plate 41 on the new upper mold core 5 that is compatible with the lower mold core 2 onto the assembly screw 42. Tighten the nut on the assembly screw 42 and install the upper mold core 5 at the bottom of the lifting plate 4. The upper mold core 5 is easy to install and remove from the lifting plate 4, which facilitates quick positioning and replacement of the mold core on the mold. The lifting plate 4 guides the lifting and removal, and the support seat 11 supports the lower mold base 1, resulting in good equipment stability.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick mold changeable mold for producing an injection molded part of an automobile, comprising a lower mold base (1), characterized in that: The top of the lower mold base (1) is provided with a lower mold core (2) through an assembling mechanism, the opposite sides of the lower mold core (2) are provided with guide support rods (3) on the top of the lower mold base (1), the top of the guide support rod (3) is provided with a top plate (31), the top of the top plate (31) is provided with a hydraulic cylinder (7), the lower side of the top plate (31) is provided with a lifting plate (4), the opposite ends of the lifting plate (4) are slidably arranged on the guide support rod (3) through guide holes, the output end of the hydraulic cylinder (7) is connected with the top of the lifting plate (4) through a hydraulic rod, the bottom of the lifting plate (4) is provided with an upper mold core (5) through a connecting mechanism, the lower mold base (1) below the lower mold core (2) is provided with an ejection mechanism (6), and the bottom of the lower mold core (2) is provided with an ejection hole corresponding to the ejection mechanism (6).

2. The quick mold changeable automotive injection molded part production mold of claim 1, wherein: The assembling mechanism comprises positioning blocks (21), mounting grooves (8), positioning grooves (9) and fixing screws (10), the top of the lower mold base (1) is provided with the mounting groove (8), the opposite sides of the lower mold core (2) are provided with the positioning blocks (21), the positioning blocks (21) are provided with positioning holes, the opposite sides of the lower mold base (1) are provided with the positioning grooves (9) on the top of the mounting groove (8), the lower mold base (1) away from the mounting groove (8) side of the positioning groove (9) is provided with the fixing screw (10) through a threaded hole, and the lower mold core (2) is arranged in the mounting groove (8) and is positioned and fixed with the lower mold base (1) through the fixing screw (10).

3. The quick mold changeable automotive injection molded part production mold of claim 1, wherein: The connecting mechanism comprises mounting plates (41) and assembling screws (42), the opposite sides of the upper mold core (5) are provided with the mounting plates (41), the bottom of the lifting plate (4) is provided with the assembling screw (42), and the assembling screw (42) is threadedly connected with a nut through a mounting hole and the mounting plate (41).

4. The quick mold changeable automotive injection molded part production mold of claim 2, wherein: The ejection mechanism (6) comprises ejection rods (61), screw sleeves (62), threaded rods (63), bevel gear sets (64) and servo motors (65), the lower mold base (1) at the bottom of the mounting groove (8) is provided with the ejection rod (61), one side of the lower end of the ejection rod (61) is provided with the screw sleeve (62), the lower mold base (1) on one side of the ejection rod (61) is provided with the threaded rod (63), the screw sleeve (62) is threadedly arranged on the threaded rod (63), the bottom of the threaded rod (63) is connected with the bevel gear set (64) below the lower mold base (1), and one side of the bevel gear set (64) is connected with the output end of the servo motor (65).

5. The quick mold changeable automotive injection molded part production mold of claim 4, wherein: The ejection rod (61) is provided with two ejection rods (61), the two ejection rods (61) are symmetrically arranged, the threaded rod (63) and the bevel gear set (64) are each provided with two, and the two bevel gear sets (64) are connected through connecting rods.

6. The quick mold changeable automotive injection molded part production mold of claim 5, wherein: The upper end of the ejection rod (61) is arranged in the inside of the mounting groove (8), the ejection rod (61) in the inside of the mounting groove (8) is arranged in the ejection hole of the lower mold core (2), and the ejection length of the ejection rod (61) is greater than the depth of the mounting groove (8).

7. The quick mold changeable automotive injection molded part production mold of claim 1, wherein: The opposite sides of the bottom of the lower mold base (1) are provided with support bases (11), and the bottom of the support base (11) is provided with a suction disc.

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