Injection mold for automotive trim panel

Abstract

The utility model provides an injection mold for an automotive trim panel, which comprises a fixed injection mold and a movable injection mold, the movable injection mold is attached to the upper end face of the fixed injection mold, an auxiliary pressing and fixing component is arranged on the side edge of the fixed injection mold, and an ejection component is arranged on the lower side in the fixed injection mold. A driving motor drives a rotating worm to rotate forwards, the rotating worm drives a double-thread lead screw to rotate forwards through a transmission worm gear, and at the moment, displacement vertical plates on the left side and the right side can drive pressing and fixing blocks to synchronously move towards the inner side, so that the pressing and fixing blocks further press and fix the injection molding movable mold after mold closing, and the mold closing tightness of the injection molding movable mold and the injection molding fixed mold is better; and after the injection molding movable mold is moved upwards and opened, the small electric push rod is controlled to drive the ejection needle to move upwards through the linkage plate, so that the ejection needle can lift and eject out an external automobile interior trimming panel formed in the injection molding fixed mold, and therefore, processing personnel can conveniently take and transfer the external automobile interior trimming panel in a bare-handed manner.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile interior trim panel processing, in particular to an injection mold for an automobile interior trim panel. Background Art

[0002] Car interior mainly refers to the car products used for car interior modification, involving all aspects of the car interior, such as car steering wheel covers, car seat cushions, car floor mats, car perfumes, car pendants, interior ornaments, storage boxes, etc. are all car interior products. Injection molds are required in the production and processing of car interior panels to obtain molded products.

[0003] Publication number "CN212684577U" provides an injection mold for precise positioning of automobile interior trim panels. Under the action of a positioning mechanism, a sleeve rod pre-installed on the upper mold can be sleeved with a slot opened in the lower mold, so that the upper and lower molds can be positioned and fitted to prevent offset. A preset first return spring can be used to engage the card block with the slot to prevent the upper and lower molds from falling off and loosening. Under the action of the locking mechanism, the hand-tightening bolt can be turned to drive the splint to squeeze the upper mold, fitting it more closely with the lower mold to prevent gaps from causing injection burrs. The L-shaped plate can be rotated to prevent blocking the fit of the upper and lower molds.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Although the injection mold can drive the clamping plate to squeeze the upper mold by turning the hand-tightening bolts to make it fit more closely with the lower mold, the clamping mechanism is time-consuming and labor-intensive in actual use, and the demolding mechanism in the injection mold also needs to be manually squeezed upward for operation during use, which not only increases the labor intensity of the processing personnel, but also affects the processing efficiency of the automobile interior panels, and is not practical. Utility Model Content

[0006] The utility model aims to provide an injection mold for an automobile interior trim panel to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An injection mold for an automobile interior trim panel comprises a stabilizing support frame, a support platform, an injection fixed mold, an injection movable mold, a connecting frame and a multi-stage electric push rod, wherein the upper end surface of the support platform is fixedly connected with the stabilizing support frame, a multi-stage electric push rod is installed at the middle position of the upper end surface of the stabilizing support frame, an injection fixed mold is installed at the middle position of the upper end surface of the support platform, an injection movable mold is attached to the upper end surface of the injection fixed mold, a connecting frame is fixedly connected to the upper end surface of the injection movable mold, an auxiliary pressing and fixing component is arranged on the side of the injection fixed mold, and the auxiliary pressing and fixing component is used for auxiliary pressing and fixing the injection movable mold after mold closing, so that the injection movable mold and the injection fixed mold have better mold closing tightness, an ejection component is arranged on the lower side of the injection fixed mold, and the ejection component is used for lifting the external automobile interior trim panel after molding inside the injection fixed mold, so that the processing personnel can conveniently take the external automobile interior trim panel.

[0009] Preferably, the auxiliary pressing and fixing assembly includes a displacement vertical plate, a pressing and fixing block, a supporting plate, a driving motor, a double-threaded screw, a rotating worm and a transmission worm wheel. The displacement vertical plates are symmetrically arranged on the left and right sides of the support platform, a pressing and fixing block is arranged on the upper side of the inner wall of the displacement vertical plate, a double-threaded screw is installed on the lower side of the displacement vertical plate, a transmission worm wheel is arranged on the right end of the double-threaded screw, a rotating worm is meshed on the rear side of the annular side surface of the transmission worm wheel, a driving motor is installed on the lower end of the rotating worm, and a supporting plate is fixedly connected to the right side of the lower end surface of the support platform.

[0010] Preferably, the ejection assembly includes an ejection pin, a small electric push rod and a linkage plate, a small electric push rod is installed in the middle position inside the support platform, a linkage plate is installed on the upper end of the small electric push rod, and an ejection pin is arranged in the middle position of the upper end surface of the linkage plate.

[0011] Preferably, a limit cavity is provided at the bottom of the injection mold, and the limit cavity matches the linkage plate, and a limit stop rod is fixedly connected to the left side of the small electric push rod.

[0012] Preferably, the support platform has symmetrically disposed limit cavities on both sides thereof, and the limit cavities match the displacement vertical plates, and a support side plate is fixedly connected to the left side of the lower end surface of the support platform.

[0013] Preferably, a limit ring is provided on the right side of the annular side of the double-threaded screw rod, and the rotation direction of the external thread on the left side of the annular side of the double-threaded screw rod is opposite to that of the external thread on the right side of the annular side.

[0014] Preferably, a follower rod is arranged on the right side of the upper end face of the injection movable mold, positioning grooves are symmetrically provided on the left and right sides of the lower end face of the injection movable mold, and positioning blocks are symmetrically provided on the left and right sides of the upper end face of the injection fixed mold, and the positioning blocks match the positioning grooves.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. After the injection mold is closed with the fixed mold, the driving motor drives the rotating worm to rotate forward, and the rotating worm drives the double-threaded screw to rotate forward through the transmission worm gear. At this time, the displacement vertical plates on the left and right sides will drive the pressing block to move inward synchronously, so that the pressing block can further press and fix the injection mold after closing, so that the tightness of the injection mold and the fixed mold is better, and the gap is prevented from causing injection burrs. In addition, the structure saves time and effort during use and has good practicality.

[0017] 2. After the mold is removed from the injection mold, the small electric push rod is controlled to drive the ejector pin to move upward through the linkage plate, so that the ejector pin can be lifted and ejected for the external automobile interior panel formed inside the injection mold, making it convenient for the processing personnel to pick it up and transfer it by hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a structural diagram of the utility model in which the injection mold is in the open mold state;

[0020] Figure 3 It is a front cross-sectional view of the ejection assembly and the auxiliary pressing assembly in the utility model;

[0021] Figure 4 It is a partial structural diagram of the auxiliary pressing component in the utility model;

[0022] Figure 5 It is a front view cross-sectional view of the injection mold in the utility model in the open mold state.

[0023] In the figure: 1. stabilizing support frame; 2. supporting table; 3. injection molding fixed mold; 31. positioning block; 4. ejector assembly; 41. ejector pin; 42. limit stop rod; 43. small electric push rod; 44. linkage plate; 45. limit cavity; 5. injection molding movable mold; 51. follower rod; 52. positioning groove; 6. connecting frame; 7. multi-stage electric push rod; 8. auxiliary pressing assembly; 81. displacement vertical plate; 82. pressing block; 83. supporting plate; 84. driving motor; 85. supporting side plate; 86. double-threaded screw; 861. limit ring; 87. rotating worm; 88. driving worm wheel; 89. limit through cavity. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] An injection mold for an automobile interior trim panel comprises a stabilizing support frame 1, a support platform 2, an injection fixed mold 3, an injection movable mold 5, a connecting frame 6 and a multi-stage electric push rod 7. The upper end surface of the support platform 2 is fixedly connected with the stabilizing support frame 1, and the stabilizing support frame 1 can stably support the multi-stage electric push rod 7. The multi-stage electric push rod 7 is installed in the middle position of the upper end surface of the stabilizing support frame 1. When the multi-stage electric push rod 7 is working, it can drive the connecting frame 6 to move up and down. The injection fixed mold 3 is installed in the middle position of the upper end surface of the support platform 2. The injection fixed mold 3 The upper end surface is attached to the injection mold 5, and the upper end surface of the injection mold 5 is provided with an injection end, and the injection end is connected to the outlet of the external injection molding machine through a pressure-resistant hose. The injection fixed mold 3 and the injection mold 5 are convenient for injection molding of external automobile interior panels. Since the internal detailed structure and working principle of the injection fixed mold 3 and the injection mold 5 are relatively mature technologies in the prior art, they will not be described in detail here. The upper end surface of the injection mold 5 is fixedly connected to a connecting frame 6, and the connecting frame 6 will drive the injection mold 5 to move up and down.

[0028] An auxiliary pressing and fixing component 8 is arranged on the side of the injection fixed mold 3, and the auxiliary pressing and fixing component 8 is used to assist in pressing and fixing the injection movable mold 5 after the mold is closed, so that the injection movable mold 5 and the injection fixed mold 3 are more tightly closed. An ejection component 4 is arranged on the lower side of the injection fixed mold 3, and the ejection component 4 is used to lift the external automobile interior panel after molding inside the injection fixed mold 3, so that the processing personnel can conveniently take the external automobile interior panel.

[0029] A follower rod 51 is arranged on the right side of the upper end surface of the injection movable mold 5, and the follower rod 51 is connected to the injection movable mold 5 by welding. The follower rod 51 can further improve the lifting stability of the injection movable mold 5. Positioning grooves 52 are symmetrically arranged on the left and right sides of the lower end surface of the injection movable mold 5. Positioning blocks 31 are symmetrically arranged on the left and right sides of the upper end surface of the injection fixed mold 3. The positioning blocks 31 are connected to the injection fixed mold 3 by welding, and the positioning blocks 31 match the positioning grooves 52. The matching positioning blocks 31 and the positioning grooves 52 prevent the injection movable mold 5 from being in contact with the injection fixed mold 3. Misalignment occurs during the mold closing process to ensure the mold closing accuracy of the injection movable mold 5 and the injection fixed mold 3. A control panel is installed on the front side of the upper end face of the support table 2, and the control panel is respectively connected to the multi-stage electric push rod 7, the small electric push rod 43 and the drive motor 84. The control panel facilitates the processing personnel to control the multi-stage electric push rod 7, the small electric push rod 43 and the drive motor 84 to work as required. Since the internal detailed structure and control principle of the control panel are relatively mature technologies in the prior art, they will not be described in detail here.

[0030] The auxiliary pressing assembly 8 includes a displacement vertical plate 81, a pressing block 82, a supporting plate 83, a driving motor 84, a double-threaded screw 86, a rotating worm 87 and a transmission worm wheel 88. The displacement vertical plates 81 are symmetrically arranged on the left and right sides of the support platform 2. The displacement vertical plates 81 are connected to the pressing block 82 by welding. The displacement vertical plates 81 will drive the pressing block 82 to move left and right. An internal threaded through cavity is opened on the lower side of the displacement vertical plate 81, and the internal threaded through cavity is meshed with the double-threaded screw 86. The internal threaded through cavity enables the displacement vertical plate 81 to move left and right when the double-threaded screw 86 is reversed. The pressing block 82 is arranged on the upper side of the inner wall of the displacement vertical plate 81, and the lower end surface of the pressing block 82 Matching the upper end surface of the injection movable mold 5, the pressing block 82 will further press and fix the injection movable mold 5 after mold closing when moving inward, so that the injection movable mold 5 and the injection fixed mold 3 fit more tightly, and a double-threaded screw 86 is installed on the lower side of the inner part of the displacement vertical plate 81, and the double-threaded screw 86 is connected to the limit ring 861 and the transmission worm gear 88 by welding. The external thread on the left side of the annular side of the double-threaded screw 86 rotates in opposite directions to the external thread on the right side of the annular side. When the double-threaded screw 86, whose external thread on the left side of the annular side rotates in opposite directions to the external thread on the right side of the annular side, rotates, the displacement vertical plates 81 on the left and right sides will move synchronously in opposite directions.

[0031] A transmission worm wheel 88 is arranged at the right end of the double-threaded screw 86, and the transmission worm wheel 88 will drive the double-threaded screw 86 to rotate. A rotating worm 87 is meshed at the rear side of the annular side of the transmission worm wheel 88, and the rotating worm 87 will drive the transmission worm wheel 88 to rotate. A driving motor 84 is installed at the lower end of the rotating worm 87, and the driving motor 84 will drive the rotating worm 87 to rotate. A supporting plate 83 is fixedly connected to the right side of the lower end surface of the support platform 2. The supporting plate 83 is L-shaped. The L-shaped supporting plate 83 will support and limit the driving motor 84 and the double-threaded screw 86 respectively. The left and right sides of the support platform 2 are symmetrically opened. A limit through cavity 89 is provided, and the limit through cavity 89 matches the displacement vertical plate 81. The limit through cavity 89 will limit and guide the displacement vertical plate 81 to prevent the displacement vertical plate 81 from offsetting or shaking during the left and right movement. A support side plate 85 is fixedly connected to the left side of the lower end surface of the support platform 2. The support side plate 85 will support and limit the left end of the double-threaded screw rod 86. A limit ring 861 is provided on the right side of the annular side surface of the double-threaded screw rod 86. A blocking cover is installed on the upper side of the right end surface of the supporting plate 83. The blocking cover and the limit ring 861 prevent the double-threaded screw rod 86 from being displaced during use.

[0032] Embodiment 2:

[0033] On the basis of the first embodiment, in this embodiment, by controlling the small electric push rod 43 to drive the ejector pin 41 to move upward through the linkage plate 44, the ejector pin 41 can lift and eject the external automobile interior panel formed inside the injection mold 3, thereby making it convenient for the processing personnel to pick it up and transfer it by hand.

[0034] The ejection assembly 4 includes an ejection pin 41, a small electric push rod 43 and a linkage plate 44. A small electric push rod 43 is installed in the middle position inside the support platform 2. The small electric push rod 43 will drive the linkage plate 44 to move up and down when working. A linkage plate 44 is installed on the upper end of the small electric push rod 43. The linkage plate 44 is connected to the ejection pin 41 by welding. The linkage plate 44 will drive the ejection pin 41 to move up and down. The ejection pin 41 is arranged in the middle position of the upper end surface of the linkage plate 44. When the ejection pin 41 moves up, it will form the inside of the injection mold 3 The outer automobile interior panel is lifted and ejected so that the processing personnel can take it. A limit cavity 45 is provided at the bottom of the injection mold 3, and the limit cavity 45 matches the linkage plate 44. The limit cavity 45 facilitates the linkage plate 44 to move up and down inside the injection mold 3. The left side of the small electric push rod 43 is fixedly connected to the limit stop rod 42, and the limit stop rod 42 is connected to the support platform 2 by welding. The limit stop rod 42 will block and limit the downward movement range of the linkage plate 44, so that the ejection pin 41 is in the same position every time it moves down to the position.

[0035] Working principle: When the external automobile interior panel is injection molded, the processing personnel first control the multi-stage electric push rod 7 to extend through the control panel, so that the multi-stage electric push rod 7 drives the injection movable mold 5 to move downward through the connecting frame 6 to close the mold with the injection fixed mold 3; when the injection movable mold 5 is closed with the injection fixed mold 3, the processing personnel control the driving motor 84 to rotate forward through the control panel, so that the driving motor 84 drives the rotating worm 87 to rotate forward together, and the rotating worm 87 drives the transmission worm wheel 88 to rotate forward, and then the transmission worm wheel 88 drives the double-threaded screw 86 to rotate forward, at this time, the double-threaded screw 86 rotating forward will drive the displacement vertical plates 81 on the left and right sides to move inward synchronously, and the displacement vertical plates 81 will drive the pressing blocks 82 on the left and right sides to move inward synchronously, so that the pressing blocks 82 on the left and right sides can further press and fix the injection movable mold 5 after the mold is closed (reference Figure 1 or Figure 3 ), so that the mold tightness of the injection movable mold 5 and the injection fixed mold 3 is better; then the processing personnel can use the external injection molding machine, the injection movable mold 5 and the injection fixed mold 3 to perform injection molding of the external automobile interior panel. After the external automobile interior panel inside the injection fixed mold 3 is injection molded, the processing personnel first control the driving motor 84 to reverse, so that the double-threaded screw 86 can drive the displacement vertical plates 81 on the left and right sides to move synchronously outward, so that the compression block 82 moves outward together and separates from the injection movable mold 5. At this time, the multi-stage electric push rod 7 is controlled to perform a contraction action, so that the connecting frame 6 drives the injection movable mold 5 to move up for mold opening; at the same time, the processing personnel control the small electric push rod 43 to perform an extension action through the control panel, so that the small electric push rod 43 can drive the ejector pin 41 to move upward through the linkage plate 44, so that the upwardly moved ejector pin 41 can lift and eject the formed external automobile interior panel (reference Figure 2 or Figure 5 ), so that it is convenient for the processing personnel to take and transfer it by hand. After the external automobile interior panel in the injection mold 3 is taken away, the small electric push rod 43 is controlled to contract, so that the linkage plate 44 can drive the ejector pin 41 to move down to the initial position. During this process, the limit stopper rod 42 will block and limit the downward movement range of the linkage plate 44. When the ejector pin 41 moves down to the right position, the above operation is repeated to carry out the injection molding of the next group of external automobile interior panels.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for an automobile interior trim panel, comprising a stabilizing support frame (1), a support platform (2), an injection fixed mold (3), an injection movable mold (5), a connecting frame (6) and a multi-stage electric push rod (7), characterized in that: The upper end surface of the support platform (2) is fixedly connected to a stabilizing support frame (1), a multi-stage electric push rod (7) is installed in the middle of the upper end surface of the stabilizing support frame (1), an injection fixed mold (3) is installed in the middle of the upper end surface of the support platform (2), an injection movable mold (5) is attached to the upper end surface of the injection fixed mold (3), and a connecting frame (6) is fixedly connected to the upper end surface of the injection movable mold (5); The side of the injection mold (3) is provided with an auxiliary pressing and fixing component (8), and the auxiliary pressing and fixing component (8) is used to assist in pressing and fixing the injection mold (5) after mold closing, so that the mold closing tightness of the injection mold (5) and the injection mold (3) is better. The lower side of the injection mold (3) is provided with an ejection component (4), and the ejection component (4) is used to lift the external automobile interior panel after molding inside the injection mold (3), so that the processing personnel can conveniently take the external automobile interior panel.

2. The injection mold for an automobile interior trim panel according to claim 1, characterized in that: The auxiliary pressing and fixing assembly (8) comprises a displacement vertical plate (81), a pressing and fixing block (82), a supporting plate (83), a driving motor (84), a double-threaded screw (86), a rotating worm (87) and a driving worm wheel (88); the displacement vertical plates (81) are symmetrically arranged on the left and right sides of the interior of the support platform (2); a pressing and fixing block (82) is arranged on the upper side of the inner wall of the displacement vertical plate (81); a double-threaded screw (86) is installed on the lower side of the interior of the displacement vertical plate (81); a driving worm wheel (88) is arranged at the right end of the double-threaded screw (86); a rotating worm (87) is meshed on the rear side of the annular side surface of the driving worm wheel (88); a driving motor (84) is installed at the lower end of the rotating worm (87); and a supporting plate (83) is fixedly connected to the right side of the lower end surface of the support platform (2).

3. The injection mold for an automobile interior trim panel according to claim 1, characterized in that: The ejection assembly (4) comprises an ejection pin (41), a small electric push rod (43) and a linkage plate (44); the small electric push rod (43) is installed in the middle position inside the support platform (2); the linkage plate (44) is installed on the upper end of the small electric push rod (43); and the ejection pin (41) is arranged in the middle position of the upper end surface of the linkage plate (44).

4. The injection mold for an automobile interior trim panel according to claim 3, characterized in that: A limit cavity (45) is provided at the bottom of the injection mold (3), and the limit cavity (45) matches the linkage plate (44). The left side of the small electric push rod (43) is fixedly connected to the limit stop rod (42).

5. The injection mold for automobile interior trim panel according to claim 2, characterized in that: The support platform (2) has symmetrically disposed limit cavities (89) on both left and right sides thereof, and the limit cavities (89) match the displacement vertical plates (81). The left side of the lower end surface of the support platform (2) is fixedly connected with a support side plate (85).

6. The injection mold for automobile interior trim panel according to claim 2, characterized in that: A limit ring (861) is provided on the right side of the annular side of the double-threaded screw rod (86), and the external thread on the left side of the annular side of the double-threaded screw rod (86) rotates in opposite directions to the external thread on the right side of the annular side.

7. The injection mold for automobile interior trim panel according to claim 1, characterized in that: A follower rod (51) is arranged on the right side of the upper end surface of the movable injection mold (5), positioning grooves (52) are symmetrically provided on the left and right sides of the lower end surface of the movable injection mold (5), and positioning blocks (31) are symmetrically provided on the left and right sides of the upper end surface of the fixed injection mold (3), and the positioning blocks (31) match the positioning grooves (52).

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