An injection mold for a thin-wall automobile ornament part with adjustable cavity distance

Abstract

The utility model provides a kind of adjustable cavity spacing's automobile thin-wall ornament injection mold, it is related to injection mold technical field, and it includes: fixed mould, the upper end surface of fixed mould is equipped with mould cavity, the upper end surface of fixed mould is rotatably connected with cover plate, the right end side plate surface of fixed mould is fixedly installed with limit tube, the bottom plate inside of fixed mould is equipped with cavity.The utility model in the adjusting plate of the mould cavity inside fixed mould can adjust the width of mould cavity when moving forwards and backwards, the scale line on the outer end surface of push-pull rod can accurately indicate adjusting distance, and the limit tube surface is equipped with locking hole, locking hole is connected with locking screw inside, after locking screw is tightened, push-pull rod can be fixed in required position, to realize the accurate adjustment of mould cavity spacing, solve the problem that the existing mold must be replaced when producing different size ornaments, and the cooling speed of ornament inside and outside is not uniform after opening the cover plate of mould cavity, reduce the quality of ornament.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold for thin-walled automotive trim parts with adjustable cavity spacing. Background Technology

[0002] With the rapid development of the automotive industry, the demand for automotive interior and exterior parts is increasing. Thin-walled trim parts are widely used in automobile manufacturing due to their advantages of lightweight, aesthetics and cost-effectiveness. However, the injection molding of thin-walled trim parts faces many challenges.

[0003] Based on the above, existing injection molds for thin-walled automotive trim parts still have the following two shortcomings in use:

[0004] First, existing molds typically use a fixed cavity design, which can only produce products of a single size. When it is necessary to produce decorative parts of different sizes, the entire mold must be replaced, which not only increases production costs but also extends the production cycle.

[0005] Secondly, after the injection molding process is completed and the mold cavity cover is opened, the exterior of the trim is exposed to air and cools down quickly, while the interior cools down slowly. This results in uneven cooling rates between the interior and exterior of the trim, which reduces its quality. Utility Model Content

[0006] This utility model relates to an injection mold for thin-walled automotive trim parts with adjustable cavity spacing. It solves the problems of existing molds requiring the replacement of the entire mold when producing trim parts of different sizes, which not only increases production costs but also leads to extended production cycles. Furthermore, it addresses the issue of uneven cooling rates inside and outside the trim parts after the mold cavity cover is opened after injection molding, which reduces the quality of the trim parts.

[0007] This utility model provides an injection mold for thin-walled automotive trim parts with adjustable cavity spacing, specifically including: a fixed mold;

[0008] The upper end face of the fixed mold is provided with a mold cavity, and a cover plate is rotatably connected to the upper end face of the fixed mold. A limit tube is fixedly installed on the surface of the right side plate of the fixed mold, and a cavity is provided inside the bottom plate of the fixed mold.

[0009] The cooling pipe is located inside the fixed mold. The inlet pipe of the cooling pipe is located inside the right side plate of the fixed mold, the outlet pipe of the cooling pipe is located inside the left side plate of the fixed mold, and the middle part of the cooling pipe is located in the cavity inside the bottom plate of the fixed mold.

[0010] The liquid inlet pipe is located at the middle of the outer end face of the cover plate, and two nozzles are fixedly installed on the lower end face of the liquid inlet pipe. The nozzles are snapped into the inside of the cover plate.

[0011] An adjusting plate is located in the mold cavity inside the fixed mold, and the front and rear ends of the adjusting plate are respectively attached to the front and rear end faces of the mold cavity;

[0012] A push-pull rod is snapped into the inside of the limiting tube, and the front end face of the push-pull rod is fixedly connected to the adjusting plate.

[0013] Furthermore, a slot is provided on the upper surface of the front side plate of the fixed mold, and an iron strip is engaged inside the slot. The upper surface of the iron strip is flush with the upper surface of the fixed mold.

[0014] Furthermore, five magnets are provided at the front of the lower end of the cover plate. When the cover plate is closed, the magnets are in contact with the iron strip.

[0015] Furthermore, the outer end face of the push-pull rod is symmetrically provided with two limiting grooves, and the outer end face of the push-pull rod is also provided with scale lines, and the outer end face of the push-pull rod is in contact with the inner end face of the limiting tube.

[0016] Furthermore, two limiting strips are symmetrically installed inside the limiting tube, and the two limiting strips are respectively engaged in the two limiting grooves on the outer end face of the push-pull rod.

[0017] Furthermore, the surface of the limiting tube has two symmetrical locking holes, the inside of which is threaded and a locking screw is connected.

[0018] Furthermore, copper sleeves are evenly installed on the outer end face of the middle part of the cooling pipe, and copper plates are installed between two adjacent copper sleeves.

[0019] This utility model provides an injection mold for thin-walled automotive trim parts with adjustable cavity spacing, which has the following advantages:

[0020] 1. An adjustment plate is provided in the mold cavity inside the fixed mold. When the adjustment plate moves back and forth, the width of the mold cavity can be adjusted. The scale line on the outer end face of the push-pull rod can accurately indicate the adjustment distance. The surface of the limit tube is provided with a locking hole, and a locking screw is connected inside the locking hole. After tightening the locking screw, the push-pull rod can be fixed in the required position, thereby realizing the precise adjustment of the mold cavity spacing. The cooperation between the limit strip and the limit groove ensures that the push-pull rod can only move in a straight line, avoiding deviation during the adjustment process.

[0021] 2. A magnet is fixedly installed on the lower end face of the cover plate, and an iron strip is provided in the groove on the front side plate of the fixed mold. The magnet at the lower end of the cover plate attracts the iron strip at the front end of the fixed mold, so that when the cover plate is closed, it can ensure that the cover plate and the fixed mold fit tightly. Molten plastic is injected through the liquid inlet pipe and enters the mold cavity through the nozzle, thus completing the injection molding operation.

[0022] 3. Coolant flows in from the right-hand inlet pipe, passes through the meandering channel in the base plate cavity, and flows out from the left-hand outlet pipe. The copper sleeve and copper plate on the outer surface of the cooling pipe greatly increase the heat absorption area, allowing the copper plate and copper sleeve to quickly transfer heat to the cooling pipe after absorbing heat, thus improving heat exchange efficiency. The high thermal conductivity of copper ensures that heat can be quickly transferred from the mold cavity to the coolant, allowing the injection molded part to cool and solidify rapidly. This allows the inner and outer end faces of the workpiece to dissipate heat evenly, improving the injection molding quality. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0024] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0025] In the attached diagram:

[0026] Figure 1 A schematic diagram of the overall device structure of this utility model is shown;

[0027] Figure 2 A schematic diagram of the connection structure between the fixed mold and the iron bar of this utility model is shown;

[0028] Figure 3 A schematic diagram of the adjusting plate and push-pull rod structure of this utility model is shown;

[0029] Figure 4 This utility model is shown Figure 3 A magnified view of the structure at point A in the middle;

[0030] Figure 5 A schematic diagram of the fixed mold and cooling pipe structure of this utility model is shown;

[0031] Figure 6 A schematic diagram of the cover plate and inlet pipe structure of this utility model is shown;

[0032] Figure 7 A schematic diagram of the connection structure between the cooling pipe and the copper sleeve of this utility model is shown;

[0033] Figure 8 A schematic diagram of the push-pull rod and limiting tube structure of this utility model is shown.

[0034] List of reference numerals in the attached diagram:

[0035] 1. Fixed mold; 101. Slot; 1011. Iron bar; 102. Limiting tube; 1021. Locking hole; 1022. Limiting strip; 2. Cooling pipe; 3. Copper sleeve; 301. Copper plate; 4. Cover plate; 401. Magnet; 5. Liquid inlet pipe; 501. Nozzle; 6. Adjusting plate; 7. Push-pull rod; 701. Scale line; 702. Limiting groove. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] Example 1: Please refer to Figures 1 to 8 :

[0038] This utility model proposes an injection mold for thin-walled automotive trim parts with adjustable cavity spacing, comprising: a fixed mold 1;

[0039] The upper end face of the fixed mold 1 is provided with a mold cavity, and the upper end face of the fixed mold 1 is rotatably connected with a cover plate 4. A limit tube 102 is fixedly installed on the surface of the right side plate of the fixed mold 1, and a cavity is provided inside the bottom plate of the fixed mold 1.

[0040] Cooling pipe 2 is located inside the fixed mold 1. The water inlet pipe of cooling pipe 2 is located inside the right side plate of the fixed mold 1, the water outlet pipe of cooling pipe 2 is located inside the left side plate of the fixed mold 1, and the middle part of cooling pipe 2 is located in the cavity inside the bottom plate of the fixed mold 1.

[0041] The liquid inlet pipe 5 is located in the middle of the outer end face of the cover plate 4. Two nozzles 501 are fixedly installed on the lower end face of the liquid inlet pipe 5. The nozzles 501 are snapped into the inside of the cover plate 4.

[0042] Adjustment plate 6 is located in the mold cavity inside the fixed mold 1, and the front and rear ends of adjustment plate 6 are respectively attached to the front and rear end faces of the mold cavity.

[0043] Push-pull rod 7 is snapped into the inside of limit tube 102, and the front end face of push-pull rod 7 is fixedly connected to adjustment plate 6.

[0044] The front side plate of the fixed mold 1 has a slot 101 on its upper surface. The slot 101 is fitted with an iron strip 1011. The upper surface of the iron strip 1011 is flush with the upper surface of the fixed mold 1. Five magnets 401 are located in front of the lower end of the cover plate 4. When the cover plate 4 is closed, the magnets 401 and the iron strips 1011 are in contact with each other. In use, after the mold cavity spacing is adjusted, the cover plate 4 is rotated around the upper end of the fixed mold 1 to close. At this time, the magnets 401 at the lower end of the cover plate 4 are attracted to the iron strips 1011 at the front end of the fixed mold 1, ensuring that the cover plate 4 and the fixed mold 1 are in close contact. Molten plastic is injected through the liquid inlet pipe 5 and enters the mold cavity through the nozzle 501 to complete the injection molding operation.

[0045] The push-pull rod 7 has two symmetrically arranged limiting grooves 702 on its outer end face, and a scale line 701 is also provided on its outer end face. The outer end face of the push-pull rod 7 fits against the inner end face of the limiting tube 102. Two limiting strips 1022 are symmetrically installed inside the limiting tube 102. The two limiting strips 1022 are respectively engaged in the two limiting grooves 702 on the outer end face of the push-pull rod 7. In use, the scale line 701 on the outer end face of the push-pull rod 7 can accurately indicate the adjustment distance, and the cooperation between the limiting strips 1022 and the limiting grooves 702 ensures that the push-pull rod 7 can only move in a straight line, avoiding deviation during the adjustment process.

[0046] The limiting tube 102 has two symmetrical locking holes 1021 on its surface. The locking holes 1021 are threaded inside and a locking screw is connected inside. After tightening the locking screw, the push-pull rod 7 can be fixed inside the limiting tube 102.

[0047] The outer end face of the middle part of the cooling pipe 2 is uniformly equipped with copper sleeves 3, and copper plates 301 are installed between two adjacent copper sleeves 3. During use, after the copper plates 301 and copper sleeves 3 absorb heat, they can be quickly transferred to the cooling pipe 2, which improves the heat exchange efficiency. The high thermal conductivity of copper ensures that heat can be quickly transferred from the mold cavity to the coolant, so that the injection molded part can be quickly cooled and shaped. This allows the inner and outer end faces of the workpiece to dissipate heat evenly, improving the injection molding quality.

[0048] The working principle of this embodiment:

[0049] In this invention, an adjusting plate 6 is provided in the cavity inside the fixed mold 1. The adjusting plate 6 can adjust the width of the cavity when it moves back and forth. When the operator needs to adjust the width of the cavity inside the fixed mold 1 according to the workpiece size, the operator can push the push-pull rod 7 forward or backward, causing the adjusting plate 6 to move back and forth within the cavity of the fixed mold 1. The scale line 701 on the outer end face of the push-pull rod 7 can accurately indicate the adjustment distance. A locking hole 1021 is provided on the surface of the limiting tube 102, and a locking screw is connected inside the locking hole 1021. After tightening the locking screw, the push-pull rod 7 can be fixed in the desired position, thereby achieving precise adjustment of the cavity spacing. The cooperation between the limiting strip 1022 and the limiting groove 702 ensures that the push-pull rod 7 can only move linearly, avoiding deviation during adjustment. After the cavity spacing is adjusted, the cover plate 4 is... When the upper end of the fixed mold 1 is rotated and closed, the magnet 401 at the lower end of the cover plate 4 is attracted to the iron strip 1011 at the front end of the fixed mold 1, ensuring that the cover plate 4 and the fixed mold 1 are tightly fitted. Molten plastic is injected through the liquid inlet pipe 5 and enters the mold cavity through the nozzle 501. After the injection molding is completed, the cover plate 4 can be opened. At this time, circulating coolant is introduced into the cooling pipe 2. The coolant flows in from the water inlet pipe at the right end, passes through the meandering channel in the bottom plate cavity, and flows out from the water outlet pipe at the left end. The copper sleeve 3 and copper plate 301 on the outer surface of the cooling pipe 2 greatly increase the heat absorption area, so that after the copper plate 301 and copper sleeve 3 absorb heat, it can be quickly transferred to the cooling pipe 2, improving the heat exchange efficiency. The high thermal conductivity of copper ensures that heat can be quickly transferred from the mold cavity to the coolant, so that the injection molded part can be quickly cooled and shaped. This allows the inner and outer end faces of the workpiece to dissipate heat evenly, improving the injection molding quality.

Claims

1. An injection mold for thin-walled automotive trim parts with adjustable cavity spacing, characterized in that, Includes: a fixed mold (1), the upper end face of which has a mold cavity, a cover plate (4) rotatably connected to the upper end face of the fixed mold (1), a limit tube (102) fixedly installed on the surface of the right side plate of the fixed mold (1), and a cavity inside the bottom plate of the fixed mold (1); a cooling pipe (2), the cooling pipe (2) is located inside the fixed mold (1), the water inlet pipe of the cooling pipe (2) is located inside the right side plate of the fixed mold (1), the water outlet pipe of the cooling pipe (2) is located inside the left side plate of the fixed mold (1), and the middle part of the cooling pipe (2) is located on the bottom plate of the fixed mold (1). Inside the cavity; liquid inlet pipe (5), the liquid inlet pipe (5) is located in the middle of the outer end face of the cover plate (4), and two nozzles (501) are fixedly installed on the lower end face of the liquid inlet pipe (5), the nozzles (501) are snapped into the inside of the cover plate (4); adjustment plate (6), the adjustment plate (6) is located in the mold cavity inside the fixed mold (1), and the front and rear ends of the adjustment plate (6) are respectively attached to the front and rear end faces of the mold cavity; push-pull rod (7), the push-pull rod (7) is snapped into the inside of the limiting tube (102), and the front end face of the push-pull rod (7) is fixedly connected to the adjustment plate (6).

2. The injection mold for thin-walled automotive trim parts with adjustable cavity spacing according to claim 1, characterized in that, The upper surface of the front side plate of the fixed mold (1) is provided with a slot (101), and an iron strip (1011) is inserted into the slot (101). The upper surface of the iron strip (1011) is flush with the upper surface of the fixed mold (1).

3. The automotive thin-walled trim injection mold with adjustable cavity spacing according to claim 1, characterized in that, Five magnets (401) are provided at the front of the lower end of the cover plate (4). When the cover plate (4) is closed, the magnets (401) and the iron strip (1011) are in contact with each other.

4. The injection mold for thin-walled automotive trim parts with adjustable cavity spacing according to claim 1, characterized in that, The outer end face of the push-pull rod (7) is symmetrically provided with two limiting grooves (702), and the outer end face of the push-pull rod (7) is also provided with scale lines (701). The outer end face of the push-pull rod (7) is in contact with the inner end face of the limiting tube (102).

5. The injection mold for thin-walled automotive trim parts with adjustable cavity spacing according to claim 1, characterized in that, The limiting tube (102) has two limiting strips (1022) symmetrically installed inside. The two limiting strips (1022) are respectively engaged in the two limiting grooves (702) on the outer end face of the push-pull rod (7).

6. The injection mold for thin-walled automotive trim parts with adjustable cavity spacing according to claim 1, characterized in that, The limiting tube (102) has two symmetrical locking holes (1021) on its surface. The locking holes (1021) are threaded inside and a locking screw is connected inside the locking holes (1021).

7. The automotive thin-walled trim injection mold with adjustable cavity spacing according to claim 1, characterized in that, The outer end face of the middle part of the cooling pipe (2) is uniformly equipped with copper sleeves (3), and copper plates (301) are installed between two adjacent copper sleeves (3).

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