Lower mould base structure in carpet mould base

Abstract

The utility model discloses a lower mould base structure in a carpet mould base, which comprises a lower mould base, a lower mould frame arranged on the lower mould base, and a lower mould plate arranged on the lower mould frame. Four driving oil cylinders used for driving the lower die plate to ascend and descend are arranged on the lower die base, and the top end of a piston rod of each driving oil cylinder is not connected with the lower die plate. Eight jacking oil cylinders used for giving upward jacking force to the lower die plate are arranged on the lower die base, and the top end of a piston rod of each jacking oil cylinder is not connected with the lower die plate. The four driving oil cylinders and the eight jacking oil cylinders are arranged in a matrix mode, and the four driving oil cylinders are located at the four corners of the matrix respectively. And a guide reset structure for guiding the lower mold plate to lift up and down is arranged between the lower mold plate and the lower mold frame. The four driving oil cylinders in the structure can basically synchronously act, so that the lower template can stably ascend.

Description

Technical Field

[0001] This utility model relates to carpet mold frames, and more particularly to a lower mold frame structure in a carpet mold frame. Background Technology

[0002] Car interiors have a variety of interior materials, among which carpets are a relatively important part. Most carpets are made using a foaming process. In the foaming process, appropriate molds are used to close the molds and foam the raw materials under specific air pressure and temperature conditions. Different shapes of products are produced depending on the mold.

[0003] Currently, carpet mold frames used for foamed carpets on the market typically include a lower mold frame structure comprising: a lower mold base, a lower mold frame resting on the lower mold base, and a lower mold template resting on the lower mold frame. The lower mold base is equipped with twelve drive cylinders for raising the lower mold template. Each drive cylinder is equipped with a synchronization valve, which is expensive, inevitably increasing costs. Furthermore, even with synchronization valves, the more drive cylinders there are, the more difficult it becomes to ensure synchronization among them, easily leading to problems such as jamming during the lower mold template's ascent, displacement of the lower mold frame, and warping of the lower mold frame. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lower mold frame structure in a carpet mold frame that allows the lower template to rise smoothly without displacement or warping of the lower mold frame.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: the lower mold frame structure in the carpet mold frame includes: a lower mold base, a lower mold frame resting on the lower mold base, and a lower template resting on the lower mold frame; four driving cylinders for driving the lower template to rise are provided on the lower mold base, the piston rod tops of each driving cylinder are not connected to the lower template, and in the initial stage before use, the piston rod tops of each driving cylinder do not contact the lower template. The movement speed of the piston rod of each driving cylinder is controlled by its corresponding synchronization valve and its corresponding throttle valve; eight lifting cylinders for giving the lower template an upward lifting force are provided on the lower mold base, the piston rod tops of each lifting cylinder are not connected to the lower template, and in the initial stage before use, the piston rod tops of each lifting cylinder do not contact the lower template; the four driving cylinders and eight lifting cylinders are arranged in a matrix, and the four driving cylinders are respectively located at the four corners of the matrix; a guide and reset structure for guiding the lower template to rise and fall is provided between the lower template and the lower mold frame.

[0006] Furthermore, in the aforementioned carpet mold frame lower mold frame structure, the guide reset structure is as follows: several guide copper sleeves are fixedly installed on the lower mold frame, and several synchronous guide posts are fixedly installed on the lower template, with each synchronous guide post corresponding to one of the guide copper sleeves; after the lower template is placed on the lower mold frame, each synchronous guide post is movably inserted into the corresponding guide copper sleeve, and a spring is sleeved on the corresponding synchronous guide post extending beyond the bottom end of each guide copper sleeve; a baffle is provided at the bottom of each synchronous guide post to block the bottom end of the corresponding spring; under the elastic force of each spring, the two ends of each spring press against the lower mold frame and the baffle respectively.

[0007] Furthermore, in the aforementioned carpet mold frame structure, the cylinder body of the lower mold tilting cylinder is hinged to the side wall of the lower mold base, and the piston rod end of the lower mold tilting cylinder is hinged to the side wall of the lower mold frame. A certain damping force is applied to the lower mold frame by the lower mold tilting cylinder.

[0008] Furthermore, in the aforementioned carpet mold frame structure, a lower mold frame locking structure is provided between the lower mold base and the lower mold frame. The lower mold frame locking structure comprises: a locking cylinder fixedly mounted on the lower mold base; a locking rod connected to the piston rod end of the locking cylinder; a locking block installed on the lower mold frame; and a locking hole provided on the locking block for the locking rod on the piston rod of the locking cylinder to extend into. When the locking cylinder drives the locking rod to extend into the locking hole and maintain its position, the position between the lower mold base and the lower mold frame is locked; when the locking cylinder drives the locking rod to extend out of the locking hole, the locked state of the lower mold base and the lower mold frame is unlocked.

[0009] The beneficial effects of this utility model are: by equipping each drive cylinder with a corresponding synchronization valve and a corresponding throttle valve, the four drive cylinders can be basically synchronized, so that the lower mold plate can rise smoothly without the problem of the synchronization guide post and the guide copper sleeve getting stuck; the synchronization is good, and the cost is greatly reduced compared with the traditional structure; in addition, the lower mold plate can rise smoothly and, combined with the lower mold tilting cylinder and the lower mold frame locking structure, avoids the phenomenon of lower mold frame displacement and tilting, ensuring the normal operation of the equipment. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the lower mold frame structure in the carpet mold frame described in this utility model.

[0011] Figure 2 Figure 1 A magnified schematic diagram of part A in the middle.

[0012] Figure 3 yes Figure 1 A schematic diagram of the structure in the B direction.

[0013] Figure 4 yes Figure 3 A magnified schematic diagram of part C in the middle.

[0014] Figure 5 yes Figure 3 A schematic diagram of a partial cross-sectional structure.

[0015] Figure 6 yes Figure 5 A magnified schematic diagram of part D in the middle section.

[0016] Figure 7 yes Figure 3 A schematic diagram showing the positions of the four drive cylinders and eight lifting cylinders after removing some structures when viewed from a low angle. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments.

[0018] In the description of this utility model, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] The lower mold frame structure in the carpet mold frame described in this embodiment, such as Figure 1 and Figure 7As shown, the system includes: a lower mold base 1, a lower mold frame 2 resting on the lower mold base 1, and a lower template 3 resting on the lower mold frame 2. Four drive cylinders 13 are provided on the lower mold base 1 to drive the lower template 3 upwards. The piston rods of each drive cylinder 13 are not connected to the lower template 3. In the initial stage before use, the piston rods of each drive cylinder 13 do not contact the lower template 3. Eight lifting cylinders 14 are provided on the lower mold base 1 to provide an upward lifting force to the lower template 3. The piston rods of each lifting cylinder 14 are not connected to the lower template 3. In the initial stage before use, the piston rods of each lifting cylinder 14 also do not contact the lower template. The four drive cylinders 13 and eight lifting cylinders 14 are arranged in a matrix, with the four drive cylinders 13 located at the four corners of the matrix.

[0021] In this embodiment, a guide and reset structure is provided between the lower template 3 and the lower mold frame 2 to guide the lower template 3 to move up and down. For example... Figure 5 and Figure 6 As shown, the guide reset structure is as follows: several guide copper sleeves 9 are fixedly installed on the lower mold frame 2, and several synchronous guide posts 10 are fixedly installed on the lower template 3. The positions of each synchronous guide post 10 and each guide copper sleeve 9 correspond one-to-one. After the lower template 3 is placed on the lower mold frame 2, each synchronous guide post 10 is movably inserted into the corresponding guide copper sleeve 9. A spring 11 is sleeved on the corresponding synchronous guide post 10 extending out of the bottom end of each guide copper sleeve 9. A baffle 12 is provided on the bottom of each synchronous guide post 10 to block the bottom end of the corresponding spring 11. Each spring 10 has a certain preload. Under the elastic force of each spring 10, the two ends of each spring 10 press against the lower mold frame 3 and the baffle 12 respectively.

[0022] The upper template 3 is used to install the upper mold. The lower mold is installed on the flipping mold frame at the top of the carpet mold frame. The piston rods of the four drive cylinders 13 extend upward synchronously, pushing the upper template 3 upward until the lower mold and the upper mold are closed. The piston rods of the eight lifting cylinders 14 extend upward at a lower speed than the piston rods of the drive cylinders 13. After the lower mold and the upper mold are closed, the eight lifting cylinders 14 provide a lifting force to the lower mold.

[0023] Each drive cylinder 13 is connected to the hydraulic control system with a corresponding synchronization valve and a corresponding throttle valve. These valves force the piston rods of the four drive cylinders 13 to move in the correct speed and direction, ensuring the lower template 3 rises smoothly without significant deviation. Significant deviation would result in large lateral forces, which could cause the synchronization guides 10 and their corresponding guide sleeves 9 to jam due to excessive angle differences. Therefore, in this embodiment, each drive cylinder 13 is equipped with a synchronization valve and a throttle valve to force them to move in sync, preventing jamming and ensuring normal operation of the equipment. The eight lifting cylinders 14 do not require synchronization, thus eliminating the need for corresponding synchronization valves and throttle valves, which are expensive. This system effectively reduces costs.

[0024] During the synchronous upward extension of the piston rods of the four drive cylinders 13, although controlled by four synchronization valves and four throttle valves, it is impossible to achieve 100% perfect synchronization in actual operation. There will always be some error, resulting in a certain lateral force on the lower mold plate 3. This lateral force affects the stability of the lower mold frame 2 resting on the lower mold base 1. Therefore, in this embodiment, a structure with a certain damping tension on the lower mold frame 2 is provided between the lower mold base 1 and the lower mold frame 2 to ensure that the lower mold frame 2 can be stably resting on the lower mold base 1. Specifically, a lower mold tilting cylinder 8 is provided. Figure 3 and Figure 5 As shown, the cylinder body of the lower mold tilting cylinder 8 is hinged to the side wall of the lower mold base 1, and the piston rod end of the lower mold tilting cylinder 8 is hinged to the side wall of the lower mold frame 2. The lower mold tilting cylinder 8 provides a certain damping force to the lower mold frame 2.

[0025] More preferably, based on the above, a lower mold frame locking structure is further provided between the lower mold base 1 and the lower mold frame 2 to further ensure that the lower mold frame 2 can be stably placed on the lower mold base 1 without tilting up. Figure 2 and Figure 4 As shown, the lower mold frame locking structure in this embodiment is as follows: a locking cylinder 4 is fixedly installed on the lower mold base 1, a locking rod 5 is connected to the end of the piston rod of the locking cylinder 4, a locking block 6 is installed on the lower mold frame 2, and a locking hole 7 is provided on the locking block 6 for the locking rod 5 on the piston rod of the locking cylinder 4 to extend into. When the locking cylinder 4 drives the locking rod 5 to extend into the locking hole 7 and maintain its position, the position between the lower mold base 1 and the lower mold frame 2 is locked. When the locking cylinder 4 drives the locking rod 5 to push out of the locking hole 7, the locked state of the lower mold base 1 and the lower mold frame 2 is unlocked.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any modifications or equivalent changes made based on the technical essence of the present utility model shall still fall within the scope of protection claimed by the present utility model.

Claims

1. The lower mold frame structure in a carpet mold frame includes: The lower mold base is characterized in that: a lower mold frame rests on the lower mold base, and a lower mold plate rests on the lower mold frame; four driving cylinders for driving the lower mold plate to rise are provided on the lower mold base, and the top end of the piston rod of each driving cylinder is not connected to the lower mold plate; the movement speed of the piston rod of each driving cylinder is controlled by its corresponding synchronization valve and its corresponding throttle valve; eight lifting cylinders for giving the lower mold plate an upward lifting force are provided on the lower mold base, and the top end of the piston rod of each lifting cylinder is not connected to the lower mold plate; the four driving cylinders and the eight lifting cylinders are arranged in a matrix, and the four driving cylinders are respectively located at the four corners of the matrix; a guide and reset structure for guiding the lower mold plate to move up and down is provided between the lower mold plate and the lower mold frame.

2. The lower mold frame structure in the carpet mold frame according to claim 1, characterized in that: The guide reset structure is as follows: several guide copper sleeves are fixedly installed on the lower mold frame, and several synchronous guide posts are fixedly installed on the lower template, with each synchronous guide post corresponding to one of the guide copper sleeves; after the lower template is placed on the lower mold frame, each synchronous guide post is movably inserted into the corresponding guide copper sleeve, and a spring is sleeved on the corresponding synchronous guide post extending out of the bottom end of each guide copper sleeve. A baffle is provided at the bottom of each synchronous guide post to block the bottom end of the corresponding spring. Under the elastic force of each spring, the two ends of each spring press against the lower mold frame and the baffle respectively.

3. The lower mold frame structure in the carpet mold frame according to claim 1, characterized in that: The cylinder body of the lower mold tilting cylinder is hinged to the side wall of the lower mold base, and the piston rod end of the lower mold tilting cylinder is hinged to the side wall of the lower mold frame.

4. The lower mold frame structure in the carpet mold frame according to claim 1, 2, or 3, characterized in that: A lower mold frame locking structure is provided between the lower mold base and the lower mold frame; the lower mold frame locking structure is as follows: a locking cylinder is fixedly provided on the lower mold base, a locking rod is connected to the piston rod end of the locking cylinder, a locking block is installed on the lower mold frame, and a locking hole is provided on the locking block for the locking rod on the piston rod of the locking cylinder to extend into.

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