Mold for foaming vehicle seat

Abstract

The utility model discloses a mould for foaming a vehicle seat, which comprises a base, a fixed mould base arranged on one side of the upper end of the base, a movable mould base arranged in the middle of the upper part of the base and capable of sliding left and right relative to the fixed mould base, and a driving device for driving the movable mould base to move left and right, a lower mold is arranged on the side, facing the fixed mold base, of the movable mold base, after the seat foaming cushion is formed, the upper mold making small-area contact with the foaming cushion moves away from the lower mold and moves out of the forming mold groove, then the hydraulic cylinder is started, and the push rod, the top mold plate and the foaming cushion are pushed to move rightwards through the piston rod; under the mutual cooperation of the spring and the linear vibration motor, the top mold plate is used for carrying out high-frequency elastic vibration pushing on the foaming cushion embedded in the forming mold groove, so that on one hand, the surface deformation and strain of the foaming cushion during hard taking-out can be prevented, and on the other hand, the foaming cushion can be continuously ejected out of the mold groove more linearly and smoothly.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically a mold for foaming vehicle seats. Background Technology

[0002] The main component of automotive seat foam is polyurethane. Polyurethane is a polymer composed of isocyanate (or polyether polyol), polyether polyol, and crosslinking agents. Polyurethane foam materials are characterized by stable and robust structure, good elasticity, good toughness, and good protective properties, and are widely used in the manufacture of automotive seats, doors, and headliners. During the production of automotive seat foam pads, because this foam material has a certain degree of adhesion and elasticity after molding, unlike common injection molding, this foam pad often remains difficult to demold even after cooling. Therefore, demolding needs to be relatively slow, thus affecting the production efficiency of the foam pad and the mold. Based on this, this utility model provides a mold for automotive seat foaming. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract, and the title, and such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] Therefore, the purpose of this utility model is to provide a mold for foaming vehicle seats, in order to solve the problem mentioned in the background art that in the production process of existing car seat foam pads, the foam material has a certain degree of adhesion and elasticity after molding, which makes it difficult to demold the foam pad even after cooling. Therefore, the demolding process needs to be relatively slow, thus affecting the production efficiency of the foam pad and the mold.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold for foaming vehicle seats, comprising a base, a fixed mold base on one side of the upper end of the base, a movable mold base slidably mounted to the fixed mold base at the center of the upper part of the base, and a drive device to move the movable mold base left and right, a lower mold on the side of the movable mold base facing the fixed mold base, a forming groove on one side of the lower mold, a top template fitted into the bottom of the groove on the inner side of the forming groove, a plurality of elastic push rod assemblies for pushing the top template to move left and right on one side of the movable mold base, and an upper mold matching the lower mold on the side of the fixed mold base facing the movable mold base.

[0006] As a preferred embodiment of the mold for foaming vehicle seats according to the present invention, the upper end of the base and the side away from the fixed mold base has a support seat, and an electric push rod for pushing the movable mold base to move left and right is provided on one side of the support seat.

[0007] As a preferred embodiment of the mold for foaming vehicle seats according to the present invention, guide slide rods are laterally fixedly connected between the four corners of the support base and the four corners of the fixed mold base, and ball-type sliding sleeves are provided at the four corners of the movable mold base to slide and match the guide slide rods.

[0008] As a preferred embodiment of the mold for foaming vehicle seats according to the present invention, the elastic push rod assembly includes multiple hydraulic cylinders horizontally fixed to one side of the movable mold base, a piston rod located at the output end of the hydraulic cylinder and hollow inside, a spring disposed on the inner end of the piston rod, a linear vibration motor fixed to one end of the spring and located inside the piston rod, and a push rod fixedly connected to the linear vibration motor and sliding on the inner side of the piston rod.

[0009] The outer end of the push rod is fixedly connected to the top template.

[0010] As a preferred embodiment of the mold for foaming vehicle seats according to the present invention, the inner side of the movable mold base has a positioning hole for installing a hydraulic cylinder, the interior of the lower mold has a clearance slot corresponding to the piston rod, and the bottom surface of the inner side of the forming mold groove also has a storage slot corresponding to the top mold plate.

[0011] As a preferred embodiment of the mold for foaming vehicle seats according to the present invention, the lower mold has multiple positioning pin holes communicating with the storage groove, and the top mold plate has multiple guide pins that slide and match the positioning pin holes on one side.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this mold for foaming vehicle seats, after the seat foam pad is formed, the upper mold, which has a small contact area with the foam pad, will move out and detach from the forming mold groove under the opposite movement of the lower mold. Then, the hydraulic cylinder is activated and the piston rod pushes the push rod, the top platen, and the foam pad to the right. During this process, the top platen performs high-frequency elastic vibration and pushes the foam pad embedded in the forming mold groove with the cooperation of the spring and the linear vibration motor. On the one hand, it can prevent the surface of the foam pad from being deformed and torn when it is forcibly removed. On the other hand, it can make the foam pad be ejected from the mold groove more linearly and smoothly, further improving the demolding speed of the foam pad and ensuring its output quality, which is conducive to further improving the production efficiency of the mold. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the half-sectional structure of the mold of this utility model;

[0015] Figure 3 This utility model Figure 2 A schematic diagram showing the detailed structure of a part of the structure.

[0016] In the diagram: 100, base; 200, fixed mold base; 210, movable mold base; 2101, positioning hole; 220, support base; 230, ball bearing sleeve; 240, guide slide rod; 300, lower mold; 3001, forming mold groove; 3002, storage groove; 3003, positioning pin hole; 3004, clearance hole groove; 310, top mold plate; 311, guide pin; 400, elastic push rod assembly; 410, hydraulic cylinder; 420, piston rod; 430, spring; 440, linear vibration motor; 450, push rod; 500, upper mold; 600, electric push rod. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] Figures 1-3 The diagram shown is a complete structural schematic of a mold for foaming vehicle seats according to this utility model. Please refer to [link / reference]. Figures 1-3This embodiment of a mold for foaming vehicle seats includes a base 100, a fixed mold base 200 on one side of the upper end of the base 100, a movable mold base 210 slidably mounted to the fixed mold base 200 at the center of the upper part of the base 100, and a drive device to move the movable mold base 210 left and right. A lower mold 300 is provided on the side of the movable mold base 210 facing the fixed mold base 200. A forming groove 3001 is provided on one side of the lower mold 300. A top mold plate 310 is fitted into the bottom of the groove on the inner side of the forming groove 3001. A plurality of elastic push rod assemblies 400 for pushing the top mold plate 310 to move left and right are provided on one side of the movable mold base 210. An upper mold 500 that matches the lower mold 300 is provided on the side of the fixed mold base 200 facing the movable mold base 210.

[0021] The base 100 has a support 220 on its upper end and on the side away from the fixed mold base 200. An electric push rod 600 is provided on one side of the support 220 for pushing the movable mold base 210 to move left and right. Guide slide rods 240 are laterally fixedly connected between the four corners of the support 220 and the four corners of the fixed mold base 200. The four corners of the movable mold base 210 have ball-type sliding sleeves 230 that slide and match the guide slide rods 240. The elastic push rod assembly 400 includes multiple hydraulic cylinders 410 horizontally fixed to one side of the movable mold base 210, a hollow piston rod 420 located at the output end of the hydraulic cylinders 410, a spring 430 disposed on the inner end of the piston rod 420, a linear vibration motor 440 fixed to one end of the spring 430 and located inside the piston rod 420, and a push rod 450 fixedly connected to the linear vibration motor 440 and sliding inside the piston rod 420; wherein, the outer end of the push rod 450 is fixedly connected to the top mold plate 310. The movable mold base 210 has a positioning hole 2101 for mounting the hydraulic cylinders 410 on its inner side, the lower mold 300 has a clearance groove 3004 corresponding to the piston rod 420 inside, and the bottom surface of the forming mold groove 3001 also has a receiving groove 3002 corresponding to the top mold plate 310. It is understandable that when demolding is required, the top mold plate 310 will move out of the receiving groove 3002 and eject the molding foam pad from the molding mold groove 3001. The lower mold 300 has multiple positioning pin holes 3003 connected to the receiving groove 3002, and the top mold plate 310 has multiple guide pins 311 that slide and match the positioning pin holes 3003 on one side. With the cooperation of the positioning pin hole 3003 and the guide pin 311, the top mold plate 310 is more stable when moving left and right. It should be noted that in this embodiment, the lower mold 300 and the upper mold 500 can also be provided with specific cooling measures such as cooling channels, which are not limited to this, to cool the molded foam pad. In addition, it should be known that since the foam pad is relatively thick and its outer surface is mainly in contact with the molding groove 3001 of the lower mold 300 after molding, the foam pad is usually located in the lower mold 300 after initial demolding. Of course, the upper mold 500 can also be provided with an elastic ejector assembly 400 to assist demolding as needed, which is not limited. Specifically, after the seat foam pad is formed, the upper mold 500, which has a small contact area with the foam pad, will move out of the forming mold groove 3001 under the opposite movement of the lower mold 300. Then, the hydraulic cylinder 410 is activated and the piston rod 420 pushes the push rod 450, the top platen 310 and the foam pad to the right. During this process, with the cooperation of the spring 430 and the linear vibration motor 440, the top platen 310 pushes the foam pad embedded in the forming mold groove 3001 with high-frequency elastic vibration. On the one hand, this can prevent the foam pad surface from being deformed and torn when it is forcibly removed, and on the other hand, it can make the foam pad be ejected from the mold groove more linearly and smoothly.

[0022] It should be noted that after the foam pad is ejected from the molding groove 3001, the surface of the pad and the surface of the groove no longer have strong initial adhesion. Therefore, the foam pad can be directly pulled out by the staff or a robotic arm at this time.

[0023] In summary, in this embodiment of a mold for foaming vehicle seats, after the seat foam pad is formed, the upper mold 500, which has a small contact area with the foam pad, moves out of the molding mold groove 3001 under the opposite movement of the lower mold 300. Subsequently, the hydraulic cylinder 410 is activated and the piston rod 420 pushes the push rod 450, the top platen 310, and the foam pad to the right. During this process, with the cooperation of the spring 430 and the linear vibration motor 440, the top platen 310 performs high-frequency elastic vibration pushing on the foam pad embedded in the molding mold groove 3001. On the one hand, this prevents deformation and tearing of the foam pad surface when it is forcibly removed. On the other hand, it allows the foam pad to be ejected from the mold groove more linearly and smoothly, further improving the demolding speed of the foam pad and ensuring its output quality, which is conducive to further improving the production efficiency of the mold.

[0024] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A mold for foaming a vehicle seat, characterized by, The system includes a base (100), a fixed mold base (200) on one side of the upper end of the base (100), a movable mold base (210) that is slidably installed on the fixed mold base (200) at the center of the upper part of the base (100), and a drive device that drives the movable mold base (210) to move left and right. A lower mold (300) is provided on the side of the movable mold base (210) facing the fixed mold base (200). A forming groove (3001) is provided on one side of the lower mold (300). A top mold plate (310) is fitted into the bottom of the groove on the inner side of the forming groove (3001). A plurality of elastic push rod assemblies (400) for pushing the top mold plate (310) to move left and right are provided on one side of the movable mold base (210). An upper mold (500) that matches the lower mold (300) when it is molded together is provided on the side of the fixed mold base (200) facing the movable mold base (210).

2. A mold for foaming a vehicle seat according to claim 1, characterized in that: The base (100) has a support seat (220) on the upper end and on the side away from the fixed mold base (200), and an electric push rod (600) is provided on one side of the support seat (220) for pushing the movable mold base (210) to move left and right.

3. A mold for foaming a vehicle seat according to claim 2, characterized in that: Guide slide rods (240) are horizontally fixedly connected between the four corners of the support base (220) and the four corners of the fixed mold base (200), and ball-type slide sleeves (230) are provided at the four corners of the movable mold base (210) to slide and match the guide slide rods (240).

4. A mold for foaming a vehicle seat according to claim 1, characterized in that: The elastic push rod assembly (400) includes multiple hydraulic cylinders (410) horizontally fixed to one side of the movable mold base (210), a piston rod (420) located at the output end of the hydraulic cylinder (410) and hollow inside, a spring (430) disposed on the inner end of the piston rod (420), a linear vibration motor (440) fixed to one end of the spring (430) and located inside the piston rod (420), and a push rod (450) fixedly connected to the linear vibration motor (440) and sliding inside the piston rod (420); The outer end of the push rod (450) is fixedly connected to the top template (310).

5. A mold for foaming a vehicle seat according to claim 1, characterized in that: The movable mold base (210) has a positioning hole (2101) for mounting a hydraulic cylinder (410) on its inner side. The lower mold (300) has a clearance slot (3004) corresponding to the piston rod (420) inside. The bottom surface of the inner side of the forming mold groove (3001) also has a receiving slot (3002) corresponding to the top mold plate (310).

6. A mold for foaming a vehicle seat according to claim 1, characterized in that: The lower mold (300) has multiple positioning pin holes (3003) connected to the receiving groove (3002), and the top mold plate (310) has multiple guide pins (311) on one side that slide and match the positioning pin holes (3003).

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