Novel automatic covering machine
By designing a new automatic edge wrapping machine including base device, forming device and pressing device, the problems of insufficient bending of metal plates and difficulty in edge wrapping on both sides of workpieces in the prior art are solved, and efficient and good quality edge wrapping effect is achieved.
Patent Information
- Application Number
- CN202421107064.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing edge wrapping device is difficult to fully bend the metal plate, resulting in the edge wrapping plates at the corners that cannot fit closely, affecting the edge wrapping effect, and lacking the processing method of edge wrapping on both sides of the workpiece at the same time, and the positioning steps are complicated.
A new type of automatic edge-bearing machine is designed, including a base device, a molding device and a pressing device. The base device is driven by a hydraulic cylinder and a lead screw to achieve bending and bonding of the raw material plate; the forming device uses a motor to drive the molding table to rotate to further squeeze and wrap the raw material plate; the pressing device helps the raw material plate bend and form traces through hydraulic medium and spring devices, thereby reducing bending resistance.
It realizes effective bending and close fit of the raw material plate, simplifies the processing steps for edge wrapping on both sides of the workpiece, improves the quality and smoothness of edge wrapping, and avoids the edge grip of the board.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automatic hemming machine design, in particular to a novel automatic hemming machine. Background Art
[0002] Hemming is a common processing technology. This processing method is used in metal processing, woodworking, plastic processing and other occasions. Through hemming, the thickness and strength of the edge of the workpiece can be increased, the edge can be prevented from deformation or breakage due to force, and the stability and durability of the overall structure can be improved; in some applications, such as the sharp edges of furniture, hemming can play the role of rounding the edge, reducing safety hazards during use and protecting users from scratches. Hemming is a versatile processing technology that can not only improve the practical performance of the workpiece, but also enhance its aesthetics and safety. It is an indispensable part of modern manufacturing.
[0003] In the process of hemming with metal plates as raw materials, the metal plates themselves are elastic and difficult to be fully bent, which can easily lead to the hemming plates at the corners not being able to fit tightly with the workpiece, resulting in hollowing and affecting the hemming effect. At the same time, the existing hemming devices lack a processing method for hemming both sides of the workpiece at the same time, and the positioning and other steps required for hemming are relatively cumbersome. Utility Model Content
[0004] The purpose of the utility model is to provide a novel automatic hemming machine to solve the problems existing in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A new type of automatic hemming machine comprises a base device, two forming devices are symmetrically arranged on both sides of the base device, and a pressing device is arranged above the forming device; the forming device comprises a moving table, a forming table is rotatably arranged on the top of the moving table, a second motor is installed in front of the forming table, two supporting blocks are symmetrically fixedly arranged on the top of the forming table, and a forming groove is arranged in the middle of the forming table; the pressing device comprises a pressing block, a liquid storage cavity is arranged in the middle of the pressing block, a trigger plate is slidably arranged at the bottom of the pressing block, a first spring is fixedly arranged on the top of the trigger plate, a number of plungers are evenly slidably arranged on both sides of the pressing block, a moving rod is fixedly arranged at the bottom of the plunger, and a second spring is arranged on the top of the moving rod.
[0007] Furthermore: the base device includes a support seat, a lead screw is rotatably arranged at the bottom of the support seat, the lead screw thread is a forward and reverse thread, a first motor is installed at one end of the lead screw, a processing table is fixedly arranged in the middle of the support seat, and a plurality of hydraulic cylinders are symmetrically installed at the bottom of the support seat.
[0008] Furthermore: the lead screw is connected to the support seat bearing, and the lead screw is connected to the first motor flat key.
[0009] Furthermore: the processing table is U-shaped.
[0010] Furthermore: the pressing block is connected to the hydraulic cylinder by bolts.
[0011] Furthermore: the first spring is bolted to the pressing block, and the moving rod is slidably connected to the pressing block.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The support seat supports the extension of the hydraulic cylinders on both sides, pushing the pressing block downward, so that the raw material plate is supported by the support block and bends inward on both sides, and the center enters the forming groove and initially becomes a U shape. In this process, the trigger plate at the bottom of the pressing block moves upward under pressure, squeezing the hydraulic medium in the liquid storage chamber, prompting the hydraulic medium to push the plunger to move obliquely downward, driving the moving rod to slide obliquely from the bottom of the pressing block to strike the bent part of the raw material plate, forming a mark to reduce the bending resistance of the raw material plate, and then the hydraulic cylinder drives the pressing block to reset, and the first spring drives the trigger plate to reset through elastic force, and at the same time, the second spring drives the plunger and the moving rod to reset. By setting the liquid storage chamber in the pressing block, the moving rod of the bent raw material plate is automatically ejected, so that the plate is better bent into a U shape, which is convenient for improving the quality of hemming in the subsequent hemming and preventing the plate from warping.
[0014] 2. The moving table supports the second motor to drive the forming table to drive the initially bent raw material plate to rotate inward 90 degrees. The support seat supports the first motor to drive the lead screw to rotate, driving the two moving tables to close inward, so that the two raw material plates bent into a U shape are respectively attached to the side edges of the workpiece, and the two sides of the workpiece are hemmed at the same time. In this process, the forming table further squeezes the raw material plate so that it completely wraps the side edges of the workpiece under the clamping of the forming groove and the workpiece. The design of directly hemming the two sides of the workpiece by rotating the forming table saves processing time. At the same time, there is no need to position the workpiece left and right, which simplifies the processing steps and improves the processing fluency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0016] Figure 1 It is a structural schematic diagram of a novel automatic hemming machine described in the utility model;
[0017] Figure 2 It is a structural schematic diagram of a base device of a novel automatic hemming machine described in the utility model;
[0018] Figure 3 It is a structural schematic diagram of a forming device of a novel automatic hemming machine described in the utility model;
[0019] Figure 4 It is a partial cross-sectional view of a material pressing device of a novel automatic hemming machine described in the utility model;
[0020] Figure 5 It is a schematic diagram of the working principle of a material pressing device of a novel automatic hemming machine described in the utility model.
[0021] In the accompanying drawings: 1. base device; 101. support seat; 102. screw; 103. first motor; 104. processing table; 105. hydraulic cylinder; 2. molding device; 201. moving table; 202. molding table; 203. second motor; 204. support block; 205. molding groove; 3. pressing device; 301. pressing block; 302. liquid storage chamber; 303. trigger plate; 304. first spring; 305. plunger; 306. moving rod; 307. second spring. DETAILED DESCRIPTION
[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-Figure 5 A novel automatic hemming machine comprises a base device 1, two forming devices 2 are symmetrically arranged on both sides of the base device 1, and a pressing device 3 is arranged above the forming device 2.
[0026] In this embodiment: the base device 1 includes a support seat 101, a lead screw 102 is rotatably arranged at the bottom of the support seat 101, the lead screw 102 thread is a positive and negative thread, a first motor 103 is installed at one end of the lead screw 102, a processing table 104 is fixedly arranged in the middle of the support seat 101, a plurality of hydraulic cylinders 105 are symmetrically installed at the bottom of the support seat 101, the lead screw 102 is connected to the support seat 101 bearing, the lead screw 102 is connected to the first motor 103 with a flat key, the processing table 104 is U-shaped, the workpiece to be hemmed is placed on the U-shaped processing table 104, the processing table 104 limits the front and rear of the workpiece, the support seat 101 supports the first motor 103 to drive the lead screw 102 to rotate, and drives the two moving tables 201 to close inward;
[0027] In this embodiment: the forming device 2 includes a moving table 201, a forming table 202 is rotatably arranged on the top of the moving table 201, a second motor 203 is installed in front of the forming table 202, two support blocks 204 are symmetrically fixed on the top of the forming table 202, a forming groove 205 is arranged in the middle of the forming table 202, two edge-wrapped raw material plates are respectively placed on the top of the support blocks 204 of the two forming tables 202, the support seat 101 supports the extension of the hydraulic cylinders 105 on both sides, and pushes the pressing block 301 downward, so that the raw material plate is supported by the support blocks 204 and bends inward on both sides, and the center enters the forming groove 205, initially becomes a U shape, the moving table 201 supports the second motor 203 to drive the forming table 202 to drive the initially bent raw material plate to rotate inward by 90 degrees, and the two raw material plates bent into a U shape are respectively attached to the side edges of the workpiece, and the two sides of the workpiece are hemmed at the same time. In this process, the forming table 202 further squeezes the raw material plate so that it completely wraps the side edges of the workpiece under the clamping of the forming groove 205 and the workpiece. The design of directly hemming the two sides of the workpiece by rotating the forming table 202 saves processing time, and at the same time, there is no need to position the workpiece left and right, which simplifies the processing steps and improves the processing fluency;
[0028] In this embodiment, the pressing device 3 includes a pressing block 301, a liquid storage chamber 302 is arranged in the middle of the pressing block 301, a trigger plate 303 is slidably arranged at the bottom of the pressing block 301, a first spring 304 is fixedly arranged on the top of the trigger plate 303, a plurality of plungers 305 are evenly slidably arranged on both sides of the pressing block 301, a moving rod 306 is fixedly arranged at the bottom of the plunger 305, a second spring 307 is arranged on the top of the moving rod 306, the pressing block 301 is bolted to the hydraulic cylinder 105, the first spring 304 is bolted to the pressing block 301, the moving rod 306 is slidably connected to the pressing block 301, the hydraulic medium is stored in the liquid storage chamber 302, and the trigger plate 303 at the bottom of the pressing block 301 is subjected to pressure The hydraulic medium in the liquid storage chamber 302 moves upward, squeezing the hydraulic medium, causing the hydraulic medium to push the plunger 305 to move obliquely downward, driving the moving rod 306 to slide obliquely and extend from the bottom of the pressing block 301, hitting the bent part of the raw material plate, forming a mark to reduce the bending resistance of the raw material plate, and then the hydraulic cylinder 105 drives the pressing block 301 to reset, and the first spring 304 drives the trigger plate 303 to reset through elastic force, and at the same time the second spring 307 drives the plunger 305 and the moving rod 306 to reset. By setting the liquid storage chamber 302 in the pressing block 301, the moving rod 306 for bending the raw material plate is automatically popped out, so that the plate can be better bent into a U shape, which is convenient for improving the quality of the hemming during subsequent hemming and preventing the plate from warping.
[0029] The hydraulic medium is stored in the liquid storage chamber 302, and the workpiece to be hemmed is placed on the U-shaped processing table 104. The processing table 104 limits the front and back of the workpiece. The two hemming raw material plates are placed on the top of the support blocks 204 of the two forming tables 202 respectively. The support seat 101 supports the extension of the hydraulic cylinders 105 on both sides, pushing the pressing block 301 downward, so that the raw material plates are bent inward on both sides under the support of the support blocks 204, and the center enters the forming groove 205 and initially becomes a U shape. In this process, the trigger plate 303 at the bottom of the pressing block 301 is pressed and moves upward, squeezing the hydraulic medium in the liquid storage chamber 302, causing the hydraulic medium to push the plunger 305 to move obliquely downward, driving the moving rod 306 to slide obliquely and extend from the bottom of the pressing block 301, hitting the bent part of the raw material plate, forming a mark to reduce the bending resistance of the raw material plate, and then the hydraulic cylinder 105 drives the pressing block 301 to reset, and the first spring 304 drives the trigger plate 303 to reset through the elastic force, and at the same time, the second spring The spring 307 drives the plunger 305 and the moving rod 306 to reset. By setting the liquid storage chamber 302 in the pressing block 301, the moving rod 306 of the bent raw material plate is automatically popped out, so that the plate can be better bent into a U shape, which is convenient for improving the quality of the hemming during the subsequent hemming and preventing the plate from warping. The moving table 201 supports the second motor 203 to drive the forming table 202 to drive the initially bent raw material plate to rotate inward by ninety degrees. The support seat 101 supports the first motor 103 to drive the lead screw 102 to rotate, driving the two moving tables 201 to close inward, so that the two raw material plates bent into a U shape are respectively attached to the side edges of the workpiece, and the two sides of the workpiece are hemmed at the same time. In this process, the forming table 202 further squeezes the raw material plate so that it can completely wrap the side edges of the workpiece under the clamping of the forming groove 205 and the workpiece. The design of directly hemming the two sides of the workpiece by rotating the forming table 202 saves processing time. At the same time, there is no need to position the workpiece left and right, simplifying the processing steps and improving the processing fluency.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A novel automatic hemming machine, comprising a base device (1), characterized in that: Two molding devices (2) are symmetrically arranged on both sides of the base device (1), and a material pressing device (3) is arranged above the molding device (2); The molding device (2) comprises a movable table (201), a molding table (202) is rotatably arranged on the top of the movable table (201), a second motor (203) is installed in front of the molding table (202), two supporting blocks (204) are symmetrically fixedly arranged on the top of the molding table (202), and a molding groove (205) is arranged in the middle of the molding table (202); The pressing device (3) comprises a pressing block (301), a liquid storage chamber (302) is arranged in the middle of the pressing block (301), a trigger plate (303) is slidably arranged at the bottom of the pressing block (301), a first spring (304) is fixedly arranged on the top of the trigger plate (303), a plurality of plungers (305) are evenly slidably arranged on both sides of the pressing block (301), a moving rod (306) is fixedly arranged at the bottom of the plunger (305), and a second spring (307) is arranged on the top of the moving rod (306).
2. A novel automatic hemming machine according to claim 1, characterized in that: The base device (1) comprises a support seat (101), a lead screw (102) is rotatably arranged at the bottom of the support seat (101), the lead screw (102) has a forward and reverse thread, a first motor (103) is installed at one end of the lead screw (102), a processing table (104) is fixedly arranged in the middle of the support seat (101), and a plurality of hydraulic cylinders (105) are symmetrically installed at the bottom of the support seat (101).
3. A new type of automatic hemming machine according to claim 2, characterized in that: The lead screw (102) is connected to the bearing of the support seat (101), and the lead screw (102) is connected to the first motor (103) by a parallel key.
4. A novel automatic hemming machine according to claim 2, characterized in that: The processing table (104) is U-shaped.
5. The novel automatic hemming machine according to claim 2 is characterized in that: The pressing block (301) is bolted to the hydraulic cylinder (105).
6. The novel automatic hemming machine according to claim 1 is characterized in that: The first spring (304) is bolted to the pressing block (301), and the moving rod (306) is slidably connected to the pressing block (301).