Door plate punching equipment

The door panel punching equipment driven by an electric hydraulic rod, combined with the rotation rod limit and the automatic material picking of the support plate, solves the safety hazards caused by manual placement of door panels and realizes a safe and efficient automated punching process.

CN223960406UActive Publication Date: 2026-03-03CHUZHOU AOFENG EQUIP MOULD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The existing refrigerator door panel punching device requires manual placement of the door panel, which poses a safety hazard as operators may accidentally enter the mold area with their hands or body parts.

Method used

Design a door panel punching device that uses an electric hydraulic rod to drive the stamping die to slide, is equipped with a rotating rod and a baffle for limiting movement, and a support plate and adjusting parts to achieve automatic material handling, combined with warning reflective stickers for safety warning.

Benefits of technology

It achieves safety protection for personnel during the automated punching process, preventing accidental entry into the punching area and the splashing of waste chips, thus improving operational safety and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of refrigerator door plate processing, and particularly discloses a door plate punching device which comprises a workbench, a punching frame installed on the top of the workbench and a punching die connected in the punching frame in a sliding mode, and a driving piece used for driving the punching die to slide is arranged on the punching frame. One side of the stamping die is rotatably connected with two groups of rotating rods, and the two groups of rotating rods are rotatably connected with the same group of baffle plates. Through the arrangement of the baffle plates, the rotating rods, the stamping die, the driving piece and the limiting piece, the driving piece drives the stamping die to move downwards for punching, and the rotating rods rotate in the moving process; and the limiting piece limits the overturning of the baffle, so that a worker can be blocked, the worker is prevented from entering a stamping area by mistake, and meanwhile, the situation that waste chips generated in the stamping process jump out and accidentally injure the worker can be prevented.
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Description

Technical Field

[0001] This utility model relates to the field of refrigerator door panel processing technology, specifically a door panel punching device. Background Technology

[0002] Perforation provides essential ventilation and heat dissipation channels for the refrigerator, ensuring the efficient operation of the condenser and compressor. It also serves to install hinges, handles, and other accessories, ensuring the stability of the door structure. In frost-free refrigerators, perforation can also create air ducts, promoting cold air circulation and improving the uniformity of cooling.

[0003] A punching device for refrigerator door panels, disclosed in patent publication number CN217669791U, facilitates material discharge. It includes a hydraulic cylinder and a push plate. In use, the operator places the refrigerator door panel on the punching platform. Due to the action of the lifting spring, there is a certain distance between the refrigerator door panel and the punching platform. The operator activates the hydraulic cylinder, which pushes the push plate downwards. The push plate pushes the clamping component and the punching seat downwards. The pressure plate in the clamping component moves downwards and, upon contacting the door panel, is blocked by the door panel, causing the pressure rod and pressure plate to stop moving. The punching seat, sleeve, and clamping spring continue to move downwards. The clamping spring is compressed, generating a rebound force that acts on the pressure rod and pressure plate, causing the pressure plate to press against the door panel. Meanwhile, the punching seat pushes the punch rod downwards to punch holes in the door panel.

[0004] When the above-mentioned device punches holes in the door panel, the door panel needs to be manually placed. During the punching process, the operator's hands or other body parts may accidentally enter the mold area, which may cause injury. In order to address the above problems, a door panel punching device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a door panel punching device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A door panel punching device includes a workbench, a stamping frame mounted on the top of the workbench, and a stamping die slidably connected within the stamping frame. The stamping frame is provided with a driving component for driving the stamping die to slide. Two sets of rotating rods are rotatably connected to one side of the stamping die, and the two sets of rotating rods are rotatably connected to the same set of baffles. A limiting component for positioning the rotation of the baffles is provided on one side of the workbench.

[0008] The top of the workbench has a groove, and a support plate is slidably connected in the groove. An adjustment component for resetting the sliding of the support plate is provided in the groove.

[0009] In one alternative embodiment: the drive unit includes two sets of electro-hydraulic rods, which are mounted on the top of the stamping frame, and the piston rods at the power output ends of the electro-hydraulic rods are fixedly connected to the top of the stamping die.

[0010] In one alternative embodiment: the limiting member includes two sets of extension rods, the two sets of extension rods are respectively located on both sides of the baffle, the two sets of extension rods are fixedly connected to one side of the stamping frame, and the two sets of extension rods on the side away from the stamping frame are respectively rotatably connected to both sides of the baffle.

[0011] In one alternative embodiment: the adjusting component includes several sets of slide rods and springs, the top of the slide rods is fixedly connected to the bottom of the support plate, the springs are sleeved on the slide rods, the slide rods are slidably connected to a positioning plate, the positioning plate is fixedly connected to one side of the inner wall of the groove, one end of the spring is fixedly connected to the bottom of the support plate, and the end of the spring away from the support plate is fixedly connected to the top of the positioning plate.

[0012] In one alternative: the support plate is fixedly connected to sliders on all four sides, and the groove is provided with a sliding groove for sliding with the sliders.

[0013] In one alternative: a warning reflective sticker is affixed to one side of the baffle.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model incorporates a baffle, a rotating rod, a stamping die, a driving component, and a limiting component. The driving component drives the stamping die to move downwards for punching. During the movement, the rotating rod rotates, causing the baffle to flip outwards from inside the stamping frame. The limiting component restricts the flipping of the baffle, thus preventing workers from accidentally entering the stamping area and also preventing waste generated during the stamping process from flying out and injuring workers.

[0016] This utility model incorporates a support plate and an adjusting component. The adjusting component can reset the support plate, making it convenient for workers to remove the punched door panel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure where the slide groove is located in this utility model.

[0019] Figure 3 This is a structural schematic diagram of the location of the support plate in this utility model.

[0020] Figure 4 This is a structural diagram of the location of the baffle in this utility model.

[0021] In the diagram: 101, workbench; 102, stamping frame; 103, stamping die; 104, extension rod; 105, rotating rod; 106, baffle; 107, electro-hydraulic rod; 108, support plate; 109, slider; 110, slide groove; 111, groove; 112, slide bar; 113, spring; 114, positioning plate. Detailed Implementation

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] 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.

[0024] Please see Figures 1-4 In this embodiment, a door panel punching device includes a workbench 101, a stamping frame 102 mounted on the top of the workbench 101, and a stamping die 103 slidably connected within the stamping frame 102. The stamping frame 102 is provided with a driving component for driving the stamping die 103 to slide. Two sets of rotating rods 105 are rotatably connected to one side of the stamping die 103. The two sets of rotating rods 105 are rotatably connected to the same set of baffles 106. A limiting component for positioning the rotation of the baffles 106 is provided on one side of the workbench 101.

[0025] The top of the workbench 101 is provided with a groove 111, and a support plate 108 is slidably connected in the groove 111. An adjustment component for resetting the sliding of the support plate 108 is provided in the groove 111.

[0026] The driving component includes two sets of electro-hydraulic rods 107, which are mounted on the top of the stamping frame 102. The piston rods at the power output ends of the electro-hydraulic rods 107 are fixedly connected to the top of the stamping die 103. The two sets of electro-hydraulic rods 107 can drive the stamping die 103 to move downward to punch holes in the door panel.

[0027] The limiting component includes two sets of extension rods 104, which are located on both sides of the baffle 106. The two sets of extension rods 104 are fixedly connected to one side of the stamping frame 102, and the sides of the two sets of extension rods 104 away from the stamping frame 102 are rotatably connected to both sides of the baffle 106. As the stamping die 103 moves, the rotating rod 105 rotates, causing the baffle 106 to flip and retract into the stamping frame 102, thus limiting the flipping of the baffle 106.

[0028] The adjusting component includes several sets of slide rods 112 and springs 113. The top of the slide rod 112 is fixedly connected to the bottom of the support plate 108. The spring 113 is sleeved on the slide rod 112. The slide rod 112 is slidably connected to the positioning plate 114. The positioning plate 114 is fixedly connected to one side of the inner wall of the groove 111. One end of the spring 113 is fixedly connected to the bottom of the support plate 108, and the end of the spring 113 away from the support plate 108 is fixedly connected to the top of the positioning plate 114. As the stamping die 103 moves, the elastic force of the spring 113 is used to pop the support plate 108 upward, thereby popping the punched door panel upward for easy handling by the staff.

[0029] The support plate 108 is fixedly connected to sliders 109 on all four sides. The groove 111 is provided with a sliding groove 110 for sliding with the sliders 109. By setting the sliders 109 and the sliding grooves 110, the sliding of the support plate 108 can be guided and limited.

[0030] A warning reflective sticker is affixed to one side of the baffle 106. By setting up the warning reflective sticker, the staff can be warned not to approach during the stamping process.

[0031] The working principle of this utility model is as follows: In use, the door panel to be punched is first placed into the groove 111. The electric hydraulic rod 107 extends, driving the stamping die 103 to slide downwards on the stamping frame 102. As the stamping die 103 moves, the rotating rod 105 rotates under force. With the rotation of the rotating rod 105, the baffle 106 flips, blocking workers from accidentally entering the stamping area. It also prevents waste generated during stamping from flying out and injuring workers. The stamping die 103 then presses down to stamp the door panel. The downward force causes the support plate 108 to slide the slider 109 within the groove 110, while simultaneously causing the slide rod 112 at the bottom of the support plate 108 to slide downward. The spring 113 is compressed by the support plate 108 and contracts. After stamping, the stamping die 103 moves upward. As the stamping die 103 moves, the rotating rod 105 rotates, causing the baffle 106 to flip and retract into the stamping frame 102. Using the elastic force of the spring 113, the support plate 108 is ejected upward, thereby ejecting the punched door panel upward for easy handling by the staff.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A door panel punching device, comprising a workbench (101), a stamping frame (102) mounted on the top of the workbench (101), and a stamping die (103) slidably connected within the stamping frame (102), characterized in that: The stamping frame (102) is provided with a driving component for driving the stamping die (103) to slide. Two sets of rotating rods (105) are rotatably connected to one side of the stamping die (103). The two sets of rotating rods (105) are rotatably connected to the same set of baffles (106). A limiting component for positioning the rotation of the baffles (106) is provided on one side of the worktable (101). The workbench (101) has a groove (111) on its top, and a support plate (108) is slidably connected in the groove (111). An adjustment component for resetting the sliding of the support plate (108) is provided in the groove (111).

2. The door panel punching equipment according to claim 1, characterized in that: The drive unit includes two sets of electric hydraulic rods (107), which are mounted on the top of the stamping frame (102). The piston rod at the power output end of the electric hydraulic rod (107) is fixedly connected to the top of the stamping die (103).

3. The door panel punching equipment according to claim 1, characterized in that: The limiting member includes two sets of extension rods (104), which are located on both sides of the baffle (106). The two sets of extension rods (104) are fixedly connected to one side of the stamping frame (102), and the two sets of extension rods (104) away from the stamping frame (102) are rotatably connected to both sides of the baffle (106).

4. The door panel punching equipment according to claim 1, characterized in that: The adjusting component includes several sets of slide rods (112) and springs (113). The top of the slide rod (112) is fixedly connected to the bottom of the support plate (108). The spring (113) is sleeved on the slide rod (112). The slide rod (112) is slidably connected to the positioning plate (114). The positioning plate (114) is fixedly connected to one side of the inner wall of the groove (111). One end of the spring (113) is fixedly connected to the bottom of the support plate (108). The end of the spring (113) away from the support plate (108) is fixedly connected to the top of the positioning plate (114).

5. The door panel punching equipment according to claim 1, characterized in that: The support plate (108) is fixedly connected to sliders (109) on all four sides, and the groove (111) is provided with a sliding groove (110) for sliding with the sliders (109).

6. The door panel punching equipment according to claim 1, characterized in that: A warning reflective sticker is affixed to one side of the baffle (106).

Citation Information

Patent Citations

  • Refrigerator door plate punching device facilitating discharging

    CN217669791U