A lower bolster plate for a mold

By incorporating an electric push rod, a hinged seat, and reinforcing components on the mold's lower platen, the misalignment problem during mold installation was solved, achieving stable and efficient mold installation.

CN224528129UActive Publication Date: 2026-07-21WUHAN JINPENG XINGSHENG MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN JINPENG XINGSHENG MOULD CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing mold base plate lacks a pre-positioning structure during installation, which makes the mold prone to misalignment and affects installation efficiency.

Method used

A pre-positioning mechanism including an electric push rod, a hinge seat, a support plate, and a connecting piece is designed. The electric push rod drives the hinge seat to move, and the rotation of the support plate and the connecting piece realizes the positioning of the positioning block. With the help of the reinforcement and fixing bolts, the stable installation of the mold is ensured.

Benefits of technology

This ensures the stable installation of the mold, improving the stability and efficiency of mold installation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224528129U_ABST
    Figure CN224528129U_ABST
Patent Text Reader

Abstract

The utility model relates to a lower bolster plate for mould belongs to mould lower bolster plate technical field, including lower bolster plate main part and mould body of sliding connection in lower bolster plate main part positive, the inside of lower bolster plate main part is provided with the preposition mechanism that can position mould body, the preposition mechanism includes the electric push rod that fixedly connected in mould body inside and extends to its top, the output of electric push rod is fixedly connected with the hinged seat. This lower bolster plate for mould, through setting up electric push rod drive hinged seat to move upward, through the supporting plate and the connecting piece again, make positioning block can rotate, simultaneously hinged seat can drive positioning block to remove, simultaneously because of the limiting effect of connecting piece, make connecting piece can rotate simultaneously, and then conveniently position positioning block to mould body inside, reached to the effect that the mould body preposition, avoided the situation that it happened to deviate.
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Description

Technical Field

[0001] This utility model relates to the technical field of mold underplates, specifically a type of underplate used on molds. Background Technology

[0002] A mold is a tool used to shape a blank into a part with a specific shape and size under the action of external force. It is widely used in forming processes such as blanking, die forging, cold heading, extrusion, powder metallurgy pressing, and pressure casting. A mold has a specific contour or internal cavity shape. By using the contour shape with a cutting edge, the blank can be separated according to the contour line shape. By using the internal cavity shape, the blank can obtain a corresponding three-dimensional shape. A mold generally consists of two parts: a moving mold and a fixed mold. The two can be separated or joined together. When separated, the part is taken out. When joined together, the blank is shaped and processed. A mold is a precision tool with a complex shape and can withstand the expansion force of the blank.

[0003] Chinese utility model patent CN216373474U discloses a lower pad for a mold, including a base plate. A receiving cavity is formed in the middle of the upper surface of the base plate, and a mounting plate is embedded within the cavity. A sliding groove is also provided on the upper surface of the base plate, surrounding and communicating with the receiving cavity. A fixing plate is slidably disposed within the sliding groove. The fixing plate is vertically positioned and has a through hole. A first threaded hole is formed on the side wall of the mounting plate corresponding to the through hole. The fixing plate is connected to the mounting plate by fixing bolts passing through the through hole and the first threaded hole. An extension portion extends from the upper end of the fixing plate beyond the sliding groove, and a pressure block is fixedly disposed on the side of the extension facing the mounting plate. This utility model facilitates mold disassembly.

[0004] However, during the use of this utility model, when the workers install the mold, there is no structure that can pre-position the mold, which can easily lead to mold misalignment during the installation process, affecting installation efficiency and failing to meet the usage requirements. Therefore, a lower pad for the mold is proposed to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a lower pad for molds, which has the advantage of facilitating pre-positioning of the mold. This solves the problem that when workers install molds, the lack of a structure to pre-position the molds easily leads to mold misalignment during installation, affecting installation efficiency and failing to meet usage requirements.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lower pad for a mold, comprising a lower pad body and a mold body slidably connected to the front side of the lower pad body, wherein the lower pad body is provided with a pre-positioning mechanism capable of positioning the mold body. The pre-positioning mechanism includes an electric push rod fixedly connected inside the mold body and extending to its top. A hinge seat is fixedly connected to the output end of the electric push rod. A support plate is fixedly connected to the front side of the lower pad body. A connecting piece is rotatably connected to the front side of the support plate. Positioning blocks extending into the mold body are rotatably connected to both the connecting piece and the hinge seat.

[0007] Furthermore, there are two connecting pieces, which are symmetrically distributed on the top and bottom of the positioning block. The mold body has a positioning groove inside that matches the positioning block.

[0008] Furthermore, there are four electric push rods, which are symmetrically distributed on the left and right sides of the mold body.

[0009] Furthermore, an extension plate extending into the interior of the lower pad body is fixedly connected to the back of the mold body, and a groove adapted to the extension plate is provided on the front of the lower pad body.

[0010] Furthermore, the top of the lower pad body is slidably connected to a reinforcing member extending to its front side, and the lower surface of the reinforcing member abuts against the upper surface of the mold body.

[0011] Furthermore, the top of the reinforcement is threadedly connected to a fixing bolt extending into the interior of the extension plate, and the interior of the extension plate has a threaded hole that matches the fixing bolt.

[0012] Furthermore, the number of the reinforcing components is four, and the four reinforcing components are symmetrically distributed on the top and bottom of the lower pad body.

[0013] Compared with the prior art, the present invention provides a lower pad for a mold, which has the following advantages: 1. The lower pad used on the mold is driven by an electric push rod to move the hinge seat upward. Then, through the support plate and connecting piece, the positioning block can rotate. At the same time, the hinge seat can drive the positioning block to move. Due to the limiting effect of the connecting piece, the connecting piece can also rotate at the same time, thus facilitating the positioning block to be positioned inside the mold body. This achieves the effect of pre-positioning the mold body and prevents it from shifting.

[0014] 2. This lower pad for molds, with its reinforcement components and fixing bolts, facilitates the fixation of the mold body onto the lower pad. The installation process is relatively simple. Furthermore, the vertically distributed reinforcement components, along with the horizontally distributed positioning blocks, further enhance the installation stability of the mold body, improving installation efficiency. This solves the problem that when workers install molds, the lack of a pre-positioning structure can easily lead to mold misalignment during installation, affecting installation efficiency and failing to meet usage requirements. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a bottom sectional view of the structure of this utility model; Figure 3 This utility model Figure 2 A magnified structural diagram of structure A is shown below; Figure 4 This is a three-dimensional structural view of the reinforcement component of this utility model.

[0016] In the diagram: 1. Lower pad body; 2. Mold body; 3. Electric push rod; 4. Hinge seat; 5. Support plate; 6. Connecting piece; 7. Positioning block; 8. Positioning groove; 9. Extension plate; 10. Reinforcing part; 11. Fixing bolt; 12. Threaded hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1 to 3 In this embodiment, a lower pad for a mold includes a lower pad body 1 and a mold body 2 slidably connected to the front of the lower pad body 1. The lower pad body 1 is provided with a pre-positioning mechanism that can position the mold body 2. The pre-positioning mechanism includes an electric push rod 3 fixedly connected to the inside of the mold body 2 and extending to its top. A hinge seat 4 is fixedly connected to the output end of the electric push rod 3. A support plate 5 is fixedly connected to the front of the lower pad body 1. A connecting piece 6 is rotatably connected to the front of the support plate 5. A positioning block 7 extending into the inside of the mold body 2 is rotatably connected to both the connecting piece 6 and the hinge seat 4.

[0019] Specifically, there are two connecting pieces 6, which are symmetrically distributed on the top and bottom of the positioning block 7. The mold body 2 has a positioning groove 8 that matches the positioning block 7 inside. There are four electric push rods 3, which are symmetrically distributed on the left and right sides of the mold body 2.

[0020] It should be noted that the height of the positioning groove 8 is twice the height of the positioning block 7, which ensures that the positioning block 7 can move in and out smoothly. By setting the electric push rod 3 to drive the hinge seat 4 to move upward, and then through the support plate 5 and the connecting piece 6, the positioning block 7 can rotate. At the same time, the hinge seat 4 can drive the positioning block 7 to move. Meanwhile, due to the limiting effect of the connecting piece 6, the connecting piece 6 can rotate at the same time, thus facilitating the positioning of the positioning block 7 into the mold body 2, achieving the effect of pre-positioning the mold body 2.

[0021] It should be noted that a main controller is set up in the system, which is electrically connected to the drive motors of the two electric linear actuators 3. Displacement sensors are installed on each electric linear actuator 3 to collect displacement data of the electric linear actuator 3 in real time and feed it back to the main controller. The main controller pre-stores a synchronous operation control program, performs real-time analysis and calculation based on the received displacement data, and outputs corresponding control signals by comparing the actual displacement of the two electric linear actuators 3 with the preset displacement difference to dynamically adjust the speed and direction of the drive motor. At the same time, a closed-loop control system is used to continuously monitor and correct the operating status of the electric linear actuators 3 to ensure that the two electric linear actuators 3 maintain a high degree of synchronization in displacement, speed and action during operation, thereby achieving a stable and reliable synchronous operation effect.

[0022] Please see Figure 1 and Figure 4 In this embodiment, an extension plate 9 extending into the interior of the lower pad body 1 is fixedly connected to the back of the mold body 2. A groove adapted to the extension plate 9 is opened on the front of the lower pad body 1. A reinforcing member 10 extending to its front is slidably connected to the top of the lower pad body 1. The lower surface of the reinforcing member 10 abuts against the upper surface of the mold body 2.

[0023] Specifically, the top of the reinforcement 10 is threaded with a fixing bolt 11 extending into the interior of the extension plate 9. The interior of the extension plate 9 is provided with a threaded hole 12 that matches the fixing bolt 11. There are four reinforcements 10, which are symmetrically distributed on the top and bottom of the lower pad body 1. The reinforcements 10 are made of high-strength aluminum alloy.

[0024] It should be noted that by setting the reinforcing parts 10 and fixing bolts 11, it is convenient to fix the mold body 2 on the lower pad body 1. At the same time, the installation steps are relatively simple. In addition, the reinforcing parts 10 distributed vertically, together with the positioning blocks 7 distributed horizontally, can further improve the installation stability of the mold body 2 and improve the installation efficiency.

[0025] The working principle of the above embodiments is as follows: First, the worker places the mold body 2 on the lower pad body 1. Then, the electric push rod 3 is activated to move the hinge seat 4 upward. At this time, the positioning block 7 will be inserted into the mold body 2 through the positioning groove 8 to achieve the effect of pre-positioning the mold body 2. Then, the fixing bolt 11 is passed through the reinforcement member 10. Subsequently, the reinforcement member 10 and the fixing bolt 11 are fixed on the lower pad body 1. At the same time, the fixing bolt 11 is inserted into the extension plate 9. The mold body 2 is then reinforced and fixed using the reinforcement member 10.

[0026] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0027] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lower backing plate for a mold, comprising a lower backing plate body (1) and a mold body (2) slidably connected to the front side of the lower backing plate body (1), characterized in that: The lower pad body (1) is provided with a pre-positioning mechanism inside, which can position the mold body (2); The pre-positioning mechanism includes an electric push rod (3) fixedly connected inside the lower pad body (1) and extending to its top. A hinge seat (4) is fixedly connected to the output end of the electric push rod (3). A support plate (5) is fixedly connected to the front of the lower pad body (1). A connecting piece (6) is rotatably connected to the front of the support plate (5). A positioning block (7) extending into the mold body (2) is rotatably connected to both the connecting piece (6) and the hinge seat (4).

2. A lower backing plate for a mold according to claim 1, characterized in that: The number of connecting pieces (6) is two, and the two connecting pieces (6) are symmetrically distributed on the top and bottom of the positioning block (7). The mold body (2) has a positioning groove inside that is compatible with the positioning block (7).

3. A lower backing plate for a mold according to claim 1, characterized in that: The number of electric push rods (3) is four, and the four electric push rods (3) are symmetrically distributed on the left and right sides of the mold body (2).

4. A lower backing plate for a mold according to claim 1, characterized in that: The back of the mold body (2) is fixedly connected to an extension plate (9) extending into the interior of the lower pad body (1), and the front of the lower pad body (1) is provided with a groove that matches the extension plate (9).

5. A lower backing plate for a mold according to claim 1, characterized in that: The top of the lower pad body (1) is slidably connected to a reinforcing member (10) extending to its front side, and the lower surface of the reinforcing member (10) abuts against the upper surface of the mold body (2).

6. A lower backing plate for a mold according to claim 5, characterized in that: The top of the reinforcement (10) is threaded with a fixing bolt (11) extending into the interior of the extension plate (9), and the interior of the extension plate (9) is provided with a threaded hole (12) that matches the fixing bolt (11).

7. A lower backing plate for a mold according to claim 5, characterized in that: The number of the reinforcing members (10) is four, and the four reinforcing members (10) are symmetrically distributed on the top and bottom of the lower pad body (1).