Core-pulling mechanism of injection mold for automobile parts

Abstract

The utility model relates to the technical field of automobile part injection molding, in particular to an automobile part injection mold core-pulling mechanism which comprises a mounting seat, a cutting assembly, a core-pulling assembly, a supporting assembly and a buffering assembly, the cutting assembly comprises a cutting motor, a cutting gear, a cutting rack, a cutting seat, a cutting knife group and a cutting guide rod, the cutting motor is fixedly connected with the mounting seat, the cutting gear is connected with the cutting motor, the cutting rack is slidably connected with the mounting seat, the cutting seat is fixedly connected with the cutting rack, and the cutting knife group is fixedly connected with the cutting seat; the mold core-pulling mechanism of the automobile lamp shell solves the problems that when the mold core-pulling mechanism of the automobile lamp shell is used, a mold core is separated from an injection molding part through vibration during core pulling, and the mold core is not separated from the injection molding part; and the internal structure of an injection molding part which is not completely shaped is easily damaged, so that the processing cost is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts injection molding, in particular to a core pulling mechanism of an automobile parts injection mold. Background Art

[0002] Most of the existing side core-pulling structures only perform core-pulling processing on the positioning groove of a lamp housing. If two or more products need to be molded at one time, multiple corresponding core-pulling structures need to be set, which leads to high production costs of the mold.

[0003] The existing announcement number CN209365261U discloses a mold core-pulling mechanism for a car lamp shell. The key points of its technical solution are a mold core-pulling mechanism for a car lamp shell, which is used for a one-mold, two-cavity injection mold, including two molding inserts used to mold the mounting grooves of the lamp shell on both sides respectively. The two molding inserts are controlled by a control block to approach or move away from the mounting groove. The one-mold, two-cavity injection mold can be core-pulled simultaneously without the need to use two separate core-pulling structures, thereby reducing the production cost of the mold.

[0004] However, when the core-pulling mechanism of the mold of the automobile lamp housing is used, the mold core is separated from the injection molded part by vibration during the core-pulling process, which may easily damage the internal structure of the injection molded part that has not been completely finalized, thereby increasing the processing cost. Utility Model Content

[0005] The utility model aims to provide a core-pulling mechanism for an injection mold of an automobile part, which solves the problem that when the core-pulling mechanism of the mold of an automobile lamp shell is in use, the mold core is separated from the injection molded part by vibration during core pulling, which easily damages the internal structure of the injection molded part that has not been completely finalized, thereby increasing the processing cost.

[0006] To achieve the above-mentioned purpose, the utility model provides a core pulling mechanism of an automobile parts injection mold, comprising a mounting seat, a splitting assembly, a core pulling assembly, a supporting assembly and a buffer assembly; the splitting assembly comprises a splitting motor, a splitting gear, a splitting rack, a splitting seat, a splitting knife group and a splitting guide rod, the splitting motor is fixedly connected to the mounting seat and is located on the right side of the mounting seat, the splitting gear is connected to the splitting motor and is located on the front side of the splitting motor, the splitting rack is slidably connected to the mounting seat and is located between the mounting seat and the splitting gear, the splitting seat is fixedly connected to the splitting rack and is located above the mounting seat, the splitting knife group is fixedly connected to the splitting seat and passes through the mounting seat, the number of the splitting guide rods is two, and the two splitting guide rods are respectively fixedly connected to the splitting seat, the core pulling assembly is connected to the mounting seat, the supporting assembly is connected to the mounting seat, and the buffer assembly is connected to the splitting guide rod.

[0007] Wherein, the core pulling assembly includes a core pulling motor, a core pulling gear, a core pulling rack, a core pulling seat, a mounting rod and a core pulling guide rod. The core pulling motor is fixedly connected to the mounting seat and is located on the left side of the mounting seat. The core pulling gear is connected to the core pulling motor and is located on the front side of the core pulling motor. The core pulling rack is slidably connected to the mounting seat and is located between the mounting seat and the core pulling gear. The core pulling seat is fixedly connected to the core pulling rack and is located at the bottom of the core pulling seat. The mounting rod is fixedly connected to the core pulling seat and passes through the mounting seat. There are two core pulling guide rods, and the two core pulling guide rods are fixedly connected to the core pulling seat respectively.

[0008] Wherein, a fixing groove and a fixing hole are arranged on the back side of the mounting seat.

[0009] Wherein, the support assembly includes a fixing bar and a support seat, the fixing bar is slidably connected to the mounting seat and passes through the mounting seat, and the support seat is fixedly connected to the fixing bar and is located at one end of the fixing bar away from the mounting seat.

[0010] Wherein, the buffer assembly includes a buffer spring and a buffer plate, the number of the buffer springs is four, the four buffer springs are respectively fixedly connected to the mounting seat and are respectively located inside the mounting seat, and the other end of each buffer spring that contacts the mounting seat is fixedly connected with a buffer plate.

[0011] The utility model discloses a core pulling mechanism for an automobile part injection mold, wherein the splitting motor provides power for the splitting assembly, the splitting guide rod provides guidance and limiting functions for the movement of the splitting seat, the splitting motor rotates, drives the splitting gear to rotate, and drives the splitting rack and the splitting seat to move up and down at the same time, when the injection molding is completed and the core needs to be pulled out, the splitting seat moves downward driven by the splitting motor, so that the splitting knife group cuts the part of the injection molded part that contacts the mold core, and then the mold core is pulled out by the core pulling assembly, thereby reducing damage to the internal structure of the injection molded part during core pulling, and solves the problem that when the core pulling mechanism of the mold of the automobile lamp housing is in use, the mold core is separated from the injection molded part by vibration during core pulling, which easily damages the internal structure of the injection molded part that has not been fully finalized, thereby increasing the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of a core pulling mechanism of an automobile parts injection mold according to the first embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of a splitting component of the first embodiment of the utility model.

[0015] Figure 3 It is a structural schematic diagram of a core pulling assembly according to the first embodiment of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the support assembly of the first embodiment of the utility model.

[0017] Figure 5 It is a structural schematic diagram of a buffer component and a splitting component of the second embodiment of the utility model.

[0018] In the figure: 101-mounting seat, 102-splitting motor, 103-splitting gear, 104-splitting rack, 105-splitting seat, 106-splitting knife group, 107-splitting guide rod, 108-core pulling motor, 109-core pulling gear, 110-core pulling rack, 111-core pulling seat, 112-mounting rod, 113-core pulling guide rod, 114-fixing groove, 115-fixing hole, 116-fixing strip, 117-support seat, 201-buffer spring, 202-buffer plate. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0020] The first embodiment of the present application is:

[0021] See also Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of a core pulling mechanism for an automobile parts injection mold according to the first embodiment of the utility model. Figure 2 is a schematic structural diagram of a splitting assembly according to a first embodiment of the present utility model. Figure 3 This is a schematic structural diagram of a core pulling assembly according to a first embodiment of the utility model. Figure 4It is a structural schematic diagram of the support component of the first embodiment of the utility model. The utility model provides a core pulling mechanism of an injection mold for automotive parts, including a mounting seat 101, a splitting component, a core pulling component and a support component. The splitting component includes a splitting motor 102, a splitting gear 103, a splitting rack 104, a splitting seat 105, a splitting knife group 106 and a splitting guide rod 107. The core pulling component includes a core pulling motor 108, a core pulling gear 109, a core pulling rack 110, a core pulling seat 111, a mounting rod 112 and a core pulling guide rod 113. The support component includes a fixing bar 116 and a support seat 117. The above-mentioned scheme solves the problem that when the core pulling mechanism of the mold of the automobile lamp shell is in use, the mold core is separated from the injection molded part by vibration during core pulling, which is easy to damage the internal structure of the injection molded part that is not fully finalized, thereby increasing the processing cost. It can be understood that the above-mentioned scheme can be used in the scenario of core pulling of automotive injection molding parts, and can also be used to solve other injection mold core pulling problems.

[0022] According to the present specific embodiment, the segmentation motor 102 is fixedly connected to the mounting seat 101 and is located on the right side of the mounting seat 101. The segmentation gear 103 is connected to the segmentation motor 102 and is located on the front side of the segmentation motor 102. The segmentation rack 104 is slidably connected to the mounting seat 101 and is located between the mounting seat 101 and the segmentation gear 103. The segmentation seat 105 is fixedly connected to the segmentation rack 104 and is located above the mounting seat 101. The segmentation knife group 106 is fixedly connected to the segmentation seat 105 and passes through the mounting seat 101. There are two segmentation guide rods 107, and the two segmentation guide rods 107 are respectively connected to the segmentation seat 1 05 is fixedly connected, the core pulling assembly is connected to the mounting seat 101, the support assembly is connected to the mounting seat 101, the splitting motor 102 provides power for the splitting assembly, and the splitting guide rod 107 provides guidance and limiting effects for the movement of the splitting seat 105. The splitting motor 102 rotates, driving the splitting gear 103 to rotate, and at the same time drives the splitting rack 104 and the splitting seat 105 to move up and down. When the injection molding is completed and the core needs to be pulled, the splitting seat 105 is driven by the splitting motor 102 to move downward, so that the splitting knife group 106 cuts the part of the injection molded part that contacts the mold core, and then the mold core is pulled out by the core pulling assembly, thereby reducing the damage to the internal structure of the injection molded part during core pulling.

[0023] The core-pulling motor 108 is fixedly connected to the mounting seat 101 and is located on the left side of the mounting seat 101. The core-pulling gear 109 is connected to the core-pulling motor 108 and is located on the front side of the core-pulling motor 108. The core-pulling rack 110 is slidably connected to the mounting seat 101 and is located between the mounting seat 101 and the core-pulling gear 109. The core-pulling seat 111 is fixedly connected to the core-pulling rack 110 and is located at the bottom of the core-pulling seat 111. The mounting rod 112 is fixedly connected to the core-pulling seat 111 and passes through the mounting seat 101. There are two core-pulling guide rods 113. The guide rods 113 are respectively fixedly connected to the core pulling seats 111, the mold core is installed at the bottom of the mounting rod 112, the core pulling motor 108 provides power for the core pulling assembly, and the core pulling guide rod 113 provides a guide for the movement of the core pulling seat 111. During injection molding, the core pulling motor 108 drives the core pulling gear 109 to rotate, and at the same time drives the core pulling rack 110 and the core pulling seat 111 to move downward. After injection molding and segmentation are completed, the core pulling motor 108 rotates to drive the core pulling rack 110 and the core pulling seat 111 to move upward, and at the same time drives the mounting rod 112 to move upward, thereby achieving the purpose of pulling out the mold core.

[0024] Secondly, a fixing groove 114 and a fixing hole 115 are provided on the back side of the mounting seat 101 . The fixing groove 114 provides a longitudinal limiting function for the fixing bar 116 , and the fixing hole 115 provides a lateral limiting function for the fixing bar 116 .

[0025] Again, the fixing bar 116 is slidably connected to the mounting seat 101 and passes through the mounting seat 101. The support seat 117 is fixedly connected to the fixing bar 116 and is located at the end of the fixing bar 116 away from the mounting seat 101. The fixing bar 116 connects the support seat 117 and the mounting seat 101, and the support seat 117 provides support for the equipment.

[0026] A core pulling mechanism for an automobile parts injection mold using the present embodiment, the splitting motor 102 provides power for the splitting assembly, the splitting guide rod 107 provides guidance and limiting functions for the movement of the splitting seat 105, the splitting motor 102 rotates, driving the splitting gear 103 to rotate, and at the same time driving the splitting rack 104 and the splitting seat 105 to move up and down, when the injection molding is completed and the core needs to be pulled, the splitting seat 105 is driven by the splitting motor 102 to move downward, so that the splitting knife group 106 cuts the part of the injection molded part that contacts the mold core, and then the mold core is pulled out by the core pulling assembly, thereby reducing the damage to the internal structure of the injection molded part during core pulling, and solves the problem that when the core pulling mechanism of the mold of the automobile lamp housing is in use, the mold core is separated from the injection molded part by vibration during core pulling, which easily damages the internal structure of the injection molded part that has not been fully finalized, thereby increasing the processing cost.

[0027] The second embodiment of the present application is:

[0028] Based on the first embodiment, please refer to Figure 5 ,in, Figure 5 It is a structural schematic diagram of a buffer component and a splitting component of the second embodiment of the utility model.

[0029] The core pulling mechanism of the automotive parts injection mold of the present embodiment further includes a buffer component, and the buffer component includes a buffer spring 201 and a buffer plate 202 .

[0030] According to this specific embodiment, the number of the buffer springs 201 is four, and the four buffer springs 201 are respectively fixedly connected to the mounting seat 101 and are respectively located inside the mounting seat 101, and the other end of each buffer spring 201 that contacts the mounting seat 101 is fixedly connected with a buffer plate 202, and the four buffer springs 201 provide elastic force for the four buffer plates 202 respectively, and the four buffer plates 202 are respectively in contact with the two split guide rods 107 and the two core pulling guide rods 113. When in contact, the elastic force provided by the buffer plate 202 reduces the pressure of the split guide rod 107 and the core pulling guide rod 113 on the buffer plate 202, and at the same time indirectly reduces the pressure generated by the split seat 105 and the core pulling seat 111 on the mounting seat 101.

[0031] Using a core pulling mechanism for an automotive parts injection mold of the present embodiment, when the four buffer plates 202 are in contact with the two split guide rods 107 and the two core pulling guide rods 113 respectively, the elastic force provided by the buffer plates 202 reduces the pressure of the split guide rods 107 and the core pulling guide rods 113 on the buffer plates 202, and indirectly reduces the pressure of the split seat 105 and the core pulling seat 111 on the mounting seat 101.

[0032] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A core pulling mechanism for an automobile parts injection mold, comprising a mounting seat, characterized in that: It also includes a splitting component, a core pulling component, a supporting component and a buffer component; The splitting assembly includes a splitting motor, a splitting gear, a splitting rack, a splitting seat, a splitting knife group and a splitting guide rod. The splitting motor is fixedly connected to the mounting seat and is located on the right side of the mounting seat. The splitting gear is connected to the splitting motor and is located on the front side of the splitting motor. The splitting rack is slidably connected to the mounting seat and is located between the mounting seat and the splitting gear. The splitting seat is fixedly connected to the splitting rack and is located above the mounting seat. The splitting knife group is fixedly connected to the splitting seat and passes through the mounting seat. There are two splitting guide rods, and the two splitting guide rods are respectively fixedly connected to the splitting seat. The core pulling assembly is connected to the mounting seat, the supporting assembly is connected to the mounting seat, and the buffer assembly is connected to the splitting guide rod.

2. The core-pulling mechanism of an automobile parts injection mold according to claim 1, characterized in that: The core pulling assembly includes a core pulling motor, a core pulling gear, a core pulling rack, a core pulling seat, a mounting rod and a core pulling guide rod. The core pulling motor is fixedly connected to the mounting seat and is located on the left side of the mounting seat. The core pulling gear is connected to the core pulling motor and is located on the front side of the core pulling motor. The core pulling rack is slidably connected to the mounting seat and is located between the mounting seat and the core pulling gear. The core pulling seat is fixedly connected to the core pulling rack and is located at the bottom of the core pulling seat. The mounting rod is fixedly connected to the core pulling seat and passes through the mounting seat. There are two core pulling guide rods, and the two core pulling guide rods are fixedly connected to the core pulling seat respectively.

3. The core-pulling mechanism of an automobile parts injection mold according to claim 1, characterized in that: The back side of the mounting seat is provided with a fixing groove and a fixing hole.

4. The core-pulling mechanism of an automobile parts injection mold according to claim 3, characterized in that: The support assembly comprises a fixing bar and a support seat, wherein the fixing bar is slidably connected to the mounting seat and passes through the mounting seat, and the support seat is fixedly connected to the fixing bar and is located at one end of the fixing bar away from the mounting seat.

5. The core-pulling mechanism of an automobile parts injection mold according to claim 1, characterized in that: The buffer assembly includes a buffer spring and a buffer plate. There are four buffer springs. The four buffer springs are respectively fixedly connected to the mounting seat and are respectively located inside the mounting seat. The other end of each buffer spring that contacts the mounting seat is fixedly connected to a buffer plate.

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