A sheet material cold press

Abstract

This application relates to the field of sheet metal processing, and in particular to a sheet metal cold press, which includes a frame, a base at the bottom of the frame, and a worktable slidably connected to the base, with a locking mechanism between them; the base has a sliding groove, and the bottom of the worktable has a slider; the locking mechanism includes a locking spring, a connecting strip, and a lever; multiple sets of positioning components on both sides of the worktable include positioning blocks, return springs, and stop bars; and structures such as a motor, screw, and proximity switch. This application achieves the technical effects of facilitating sheet metal loading and unloading, ensuring stable sliding of the worktable, fixing the worktable to the base, limiting the sheet metal movement, shortening the pressure plate stroke, reducing stamping time, improving work efficiency, and preventing direct impact between parts.

Description

Technical Field

[0001] This application relates to the field of sheet metal processing, and in particular to a sheet metal cold press. Background Technology

[0002] Cold presses, as crucial equipment for panel processing, are widely used in industries such as furniture manufacturing and construction. With the continuous development of these industries, the demands for quality and efficiency in panel processing are also increasing. Cold presses can apply specific pressure to strengthen the adhesion between panels and achieve various processing objectives such as leveling and shaping, providing strong support for product quality improvement and diversified production. Their application in different industries has promoted the optimization of product quality and driven the development and progress of related industries. For example, in furniture manufacturing, cold presses ensure a tight bond at panel joints, improving the overall stability and aesthetics of the furniture; in the construction field, they ensure that panels meet structural requirements, guaranteeing the safety of buildings.

[0003] In the past, there were various conventional methods for handling the critical step of loading and unloading materials in the cold pressing process of sheet metal. Some cold presses used manual loading and unloading methods because the workbench and the cold press were usually fixed, and most cold presses had a door-shaped structure, so the workers had to manually move the sheet metal onto the workbench when loading.

[0004] These conventional methods in existing technologies have significant drawbacks. Taking manual loading and unloading as an example, because the boards are typically heavy, workers not only expend considerable physical strength during handling, but the entire process is also extremely inefficient. The slow speed of manual operation severely impacts production progress and makes it difficult to meet the demands of large-scale, high-efficiency production. Other methods, such as rudimentary hoisting equipment and inflexible semi-automated production lines, similarly fail to adequately address the convenience and efficiency issues of board loading and unloading, and are ill-suited to the requirements of rapid modern industrial development. Utility Model Content

[0005] The purpose of this application is to overcome the above-mentioned technical problems and provide a cold pressing machine for sheet metal.

[0006] A sheet metal cold press includes a frame, a base at the bottom of the frame, a worktable on the base, a top extending above the worktable, a hydraulic cylinder on the frame, the hydraulic cylinder being vertically oriented, the piston rod of the hydraulic cylinder extending vertically downward into the frame and fixedly connected to a pressure plate, the worktable being slidably connected to the base, and a locking element fixing the worktable and the base together.

[0007] By adopting the above technical solution, when the user is using the machine, the workbench can slide out of the frame from one side of the base when loading and unloading the sheet metal, so that the sheet metal can be directly hoisted onto the workbench, thus facilitating the loading and unloading of the sheet metal. The locking device fixes the workbench and the base to prevent the workbench from shaking during the hydraulic process.

[0008] Preferably, the base has two parallel sliding grooves, and the bottom of the worktable is fixedly connected to two sliders, which slide within the sliding grooves.

[0009] By adopting the above technical solution, when the user pulls the worktable outward from the base, the slider moves within the groove, which guides and limits the worktable, making the worktable slide more stably.

[0010] Preferably, the base has locking grooves on both sides corresponding to the sliding direction of the worktable. The locking component includes a locking spring, which is vertically arranged. The bottom of the locking spring is fixedly connected to the locking groove, and the top of the locking spring is fixedly connected to a plug strip. The worktable has a plug interface at the position corresponding to the plug strip, and a horizontally arranged lever is fixedly connected to the side wall of the plug strip.

[0011] By adopting the above technical solution, when the user uses the device, pressing down the lever causes the connector to move downwards, disengaging the connector from the interface and not interfering with the sliding of the worktable. When the connector is inserted into the interface, it fixes the worktable to the base.

[0012] Preferably, multiple sets of positioning components are provided on both sides of the worktable in the sliding direction; the positioning component includes a positioning block fixedly connected to the side wall of the worktable, a cavity is opened in the positioning block, a return spring is fixedly connected in the cavity, a stop bar is connected to the top of the return spring, and the stop bar protrudes from the top of the worktable under the tension of the return spring.

[0013] By adopting the above technical solution, when the user installs the plate, the plate can push the stop rod to compress the return spring, causing the stop rod to slide downwards without interfering with the installation of the plate on the workbench. The stop rod protrudes from the top of the workbench to limit the plate and prevent it from falling off the sides of the workbench in the sliding direction, while also preventing the plate from shaking during the pressing process of the pressure plate.

[0014] Preferably, there are two return springs, each with a sliding block fixedly connected to its top. A rotating shaft is fixedly connected to the bottom of the stop rod, with both ends of the rotating shaft rotatably connected to the sliding block. A notch is provided on the side of the positioning block away from the worktable.

[0015] By adopting the above technical solution, when using the equipment, the user can flip the stop bar outwards from the workbench before loading or unloading the sheet material. The rotating shaft of the stop bar rotates inside the sliding block, causing the stop bar to flip downwards from vertical, without interfering with the loading or unloading of the sheet material.

[0016] Preferably, the positioning block is fixedly connected to a limiting plate at the bottom of the notch, and the limiting plate is horizontally positioned.

[0017] By adopting the above technical solution, when the user uses it, the limiting plate is used to limit the stop bar, so that the stop bar rotates from a vertical position to a horizontal position.

[0018] Preferably, a motor is fixedly connected to the top of the frame, and a screw is fixedly connected to the output shaft of the motor. The screw is vertically oriented and threadedly connected to the base.

[0019] By adopting the above technical solution, when the motor is powered on, the motor drives the screw to rotate, which in turn drives the base and the worktable to move vertically. During the stamping process, the worktable moves upward, which can shorten the downward stroke of the pressure plate, thereby reducing the stamping time and improving work efficiency.

[0020] Preferably, a proximity switch is provided inside the frame.

[0021] By adopting the above technical solution, when the user uses the device, the proximity switch is used to detect the distance the base slides upward. When the base slides to a certain distance, the motor is powered off to prevent the base and the worktable from sliding upward and the pressure plate from moving downward and causing a direct impact. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0023] Figure 2 This is a cross-sectional view of an embodiment of this application;

[0024] Figure 3 This is a sectional view of the base and the worktable;

[0025] Figure 4 yes Figure 3 Enlarged view of part A.

[0026] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Base; 111. T-shaped slide; 112. Locking groove; 12. Worktable; 121. T-shaped slider; 122. Insertion interface; 13. Hydraulic cylinder; 14. Pressure plate; 15. Locking component; 151. Locking spring; 152. Insertion strip; 153. Lever; 16. Motor; 161. Screw; 17. Proximity switch; 2. Positioning assembly; 21. Positioning block; 211. Cavity; 212. Notch; 22. Return spring; 221. Sliding block; 23. Stop bar; 231. Rotating shaft; 24. Limit plate. Detailed Implementation

[0027] The following will be combined with the appendix Figure 1-4The technical solutions in the embodiments of this utility model are described in further detail below. The described embodiments are only possible technical implementations of this utility model, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of this utility model without creative effort are also within the protection scope of this utility model.

[0028] This application mainly adopts a sliding worktable and locking design, which facilitates the loading and unloading of sheet metal and prevents shaking during hydraulic operation. The following is a further detailed description of this application.

[0029] The sheet metal cold pressing machine provided in this application embodiment refers to... Figure 1 and Figure 2 The system includes a frame 1, a base 11, a worktable 12, a hydraulic cylinder 13, a pressure plate 14, and a locking element 15. The bottom of the frame 1 is connected to the base 11, the worktable 12 is slidably connected to the base 11, the top of the frame 1 extends above the worktable 12, the hydraulic cylinder 13 is installed on the top of the frame 1, its piston rod passes vertically downward through the top of the frame 1 and is fixedly connected to the pressure plate 14, and the locking element 15 is used to fix the worktable 12 and the base 11. In this way, when loading and unloading the sheet metal, the worktable 12 can be slid out of the frame 1 from one side of the base 11, which facilitates the handling of the sheet metal and prevents the worktable 12 from shaking during hydraulic operation.

[0030] Specifically, frame 1 is the supporting structure of the entire cold press, and it is generally made of high-strength metal materials, such as steel. Steel has good strength and stability and can withstand the pressure during the cold pressing process. Frame 1 can be a frame structure, and its frame shape can be rectangular, square, etc., to ensure the stability of the structure. In some cases, alloy materials are used to make frame 1. Alloy materials are lightweight and high-strength, which can reduce the overall weight of the equipment.

[0031] The base 11 is located at the bottom of the frame 1, providing support for the worktable 12. The base 11 is usually made of a heavy metal plate, such as an iron plate, which increases the stability of the equipment. The base 11 can be rectangular in shape with a relatively flat surface to allow the worktable 12 to slide on it. In some cases, a cast iron base 11 is also used, as cast iron has good wear resistance and shock absorption properties.

[0032] A motor 16 is fixedly connected to the top of the frame 1. The output shaft of the motor 16 is fixedly connected to a screw 161, which is vertically oriented and threadedly connected to the base 11. The screw 161 is typically made of high-strength alloy steel with high thread precision to ensure accurate transmission. Ball screws are also sometimes used, offering advantages such as high transmission efficiency and high precision. When the motor 16 is energized, it drives the screw 161 to rotate, thereby causing the base 11 and the worktable 12 to move vertically. During the stamping process, the worktable 12 moves upward, shortening the downward stroke of the pressure plate 14. The combined design of the motor 16 and the screw 161 changes the traditional cold press's reliance on a single hydraulic cylinder 13 for downward pressure. By raising the worktable 12, the stroke of the pressure plate 14 is reduced, improving cold pressing efficiency.

[0033] In addition, a proximity switch 17 is installed inside the frame 1. The proximity switch 17 is used to detect the distance the base 11 slides upward. The proximity switch 17 can be an inductive proximity switch 17 or a capacitive proximity switch 17. The capacitive proximity switch 17 can also detect non-metallic objects. When the base 11 slides to a certain distance, the proximity switch 17 sends a signal to control the motor 16 to cut off the power, preventing the base 11 and the worktable 12 from sliding upward and directly colliding with the pressure plate 14 moving downward, thus protecting the equipment safety.

[0034] The worktable 12 is used to place the sheet metal to be processed. A T-shaped slider 121 is fixedly connected to the bottom of the worktable 12. The T-shaped slider 121 is generally made of wear-resistant engineering plastic, such as polytetrafluoroethylene, which has a low coefficient of friction, allowing the worktable 12 to slide more smoothly. Alternatively, the slider can be made of copper alloy, which has good thermal conductivity and wear resistance.

[0035] Two parallel T-shaped grooves 111 are formed on the base 11. These grooves guide and limit the sliding of the worktable 12. The cross-sectional shape of the T-shaped grooves 111 can be trapezoidal, rectangular, etc. Trapezoidal T-shaped grooves 111 prevent the T-shaped slider 121 from dislodging, while rectangular grooves are easier to manufacture. The inner wall of the T-shaped grooves 111 is polished to reduce surface roughness and decrease friction between the T-shaped slider 121 and the T-shaped grooves 111.

[0036] The T-shaped slider 121 is adapted to the T-shaped slide groove 111 and installed at the bottom of the worktable 12. When the T-shaped slider 121 slides within the T-shaped slide groove 111, it fits tightly against the inner wall of the T-shaped slide groove 111, ensuring that the worktable 12 can only slide along the direction of the T-shaped slide groove 111, thus guaranteeing the stability of the worktable 12's sliding. The combined design of the T-shaped slider 121 and the T-shaped slide groove 111 prevents the worktable 12 from shifting or shaking during sliding, improving the efficiency and accuracy of loading and unloading.

[0037] Reference Figure 3 The locking component 15 includes a locking spring 151 and a connector strip 152. A locking groove 112 is provided on the upper part of the base 11. The locking spring 151 is vertically disposed within the locking groove 112, with its bottom fixed within the groove and its top connected to the connector strip 152. A connector interface 122 is provided on the worktable 12 corresponding to the position of the connector strip 152. The connector strip 152 is inserted into the connector interface 122. A horizontally positioned lever 153 is fixedly connected to the side wall of the connector strip 152. Pressing down the lever 153 causes the connector strip 152 to move downwards, disengaging it from the connector interface 122 without interfering with the sliding of the worktable 12. When the connector strip 152 is inserted into the connector interface 122, the worktable 12 is fixed to the base 11.

[0038] Reference Figure 3 and Figure 4 To position the sheet metal on the workbench 12, positioning components 2 are provided on both sides of the sliding table in opposite directions. Positioning components 2 include positioning blocks 21, two return springs 22, and a stop bar 23. The positioning block 21 is fixed to the side wall of the workbench 12 and has an internal cavity 211 to accommodate the return springs 22 and sliding blocks 221. Sliding blocks 221 are fixedly connected to the tops of both return springs 22, allowing them to slide within the positioning cavity. A rotating shaft 231 is fixedly connected to the bottom of the stop bar 23, with both ends of the shaft 231 rotatably connected to the sliding blocks 221. The stop bar 23 can be round with a smooth surface for easy operation. In some cases, a square-shaped stop bar 23 is used, as it is easier to grip. The rotating shaft 231 is generally made of carbon steel, which has high strength and toughness.

[0039] The positioning block 21 has a notch 212 on the side away from the worktable 12. The notch 212 provides space for the rotation of the stop bar 23. A limit plate 24 is fixedly connected to the bottom of the notch 212. The limit plate 24 is horizontally set and made of steel plate. It is used to limit the stop bar 23 so that the stop bar 23 can rotate from vertical to horizontal.

[0040] When installing the sheet material, the sheet material pushes the stop lever 23 to compress the return spring 22, causing the stop lever 23 to slide downwards, without obstructing the placement of the sheet material on the worktable 12. When loading or unloading is required, the stop lever 23 can be flipped outwards from the worktable 12, changing its position from vertical to horizontal, without interfering with the handling of the sheet material. The design of the positioning component 2 increases the stability of the sheet material placement, preventing it from shaking or falling during processing. The flipping function of the stop lever 23 improves the convenience of loading and unloading.

[0041] The implementation principle of this embodiment is as follows: The sheet metal cold press, through the sliding design of the worktable 12, solves the problem of inconvenient loading and unloading in traditional cold presses. When loading and unloading sheet metal, simply sliding the worktable 12 out of the frame 1 easily completes the operation, avoiding the tedious and inefficient manual handling. Simultaneously, the locking element 15 ensures the stability of the worktable 12 during hydraulic operation, preventing processing quality problems caused by worktable 12 shaking. Compared with existing technologies, this improves production efficiency, reduces labor intensity, and has significant practicality and innovation.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sheet metal cold press, comprising a frame, a base at the bottom of the frame, a worktable on the base, a top extending above the worktable, a hydraulic cylinder mounted on the frame, the hydraulic cylinder being vertically oriented, and a piston rod extending vertically downward into the frame and fixedly connected to a pressure plate, characterized in that: The worktable is slidably connected to the base, and a locking device is provided between the base and the worktable to fix the worktable and the base.

2. A sheet cold press according to claim 1, characterized in that: The base has two parallel sliding grooves, and two sliders are fixedly connected to the bottom of the worktable, which slide within the sliding grooves.

3. A sheet cold press according to claim 1, characterized in that: The base has locking grooves on both sides corresponding to the sliding direction of the worktable. The locking component includes a locking spring, which is vertically arranged. The bottom of the locking spring is fixedly connected to the locking groove, and the top of the locking spring is fixedly connected to a plug strip. The worktable has a plug interface at the position corresponding to the plug strip, and a horizontally arranged lever is fixedly connected to the side wall of the plug strip.

4. A sheet metal cold press according to claim 1, characterized in that: Multiple sets of positioning components are provided on both sides of the sliding direction of the worktable; The positioning component includes a positioning block fixedly connected to the side wall of the worktable. A cavity is provided inside the positioning block, and a return spring is fixedly connected inside the cavity. A stop bar is connected to the top of the return spring, and the stop bar protrudes from the top of the worktable under the tension of the return spring.

5. A sheet cold press according to claim 4, characterized in that: There are two return springs, and a sliding block is fixedly connected to the top of each return spring. A rotating shaft is fixedly connected to the bottom of the stop rod, and the two ends of the rotating shaft are rotatably connected to the sliding block. A notch is opened on the side of the positioning block away from the worktable.

6. A sheet metal cold pressing machine according to claim 5, characterized in that: The positioning block is fixedly connected to a limiting plate at the bottom of the notch, and the limiting plate is set horizontally.

7. A sheet metal cold pressing machine according to claim 1, characterized in that: A motor is fixedly connected to the top of the frame, and a screw is fixedly connected to the output shaft of the motor. The screw is vertically oriented and threadedly connected to the base.

8. A sheet metal cold press according to claim 1, characterized in that: A proximity switch is installed inside the frame.

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