Plate bending device for machining constant-temperature drying box

Abstract

The utility model belongs to the technical field of constant-temperature drying box processing, and particularly relates to a plate bending device for processing a constant-temperature drying box, which comprises a working table and supporting columns, the supporting columns are fixedly connected to four corners of the lower side of the working table, the upper end of the working table is connected with a bending mechanism, and the bending mechanism comprises a bending unit and a clamping unit. When the plate bending device for machining the constant-temperature drying box is used, a to-be-bent plate for the constant-temperature drying box slides to the position between the limiting rollers till the two ends of the plate are located between the limiting rollers, then a rotating handle is rotated to drive a threaded rod to rotate, and meanwhile a movable plate is located on the inner side of a groove and slides along the outer side of the limiting rod; and after the pressing plate moves to make contact with the left end and the right end of the plate, the telescopic piece is started, an output shaft of the telescopic piece moves downwards to drive the bending block to move downwards, and the bending position of the plate is pressed downwards into the bending base to be bent.

Description

Technical Field

[0001] The utility model relates to the technical field of constant temperature drying oven processing, in particular to a plate bending device for processing a constant temperature drying oven. Background Art

[0002] Drying ovens are divided into two categories: electric blast drying ovens and vacuum drying ovens, depending on the dry material. They are now widely used in industries such as chemical industry, electronic communications, plastics, cables, electroplating, hardware, automobiles, optoelectronics, rubber products, molds, spraying, printing, medical treatment, aerospace, and colleges and universities. Constant temperature drying ovens are used to test and determine the parameters and performance of electrical, electronic and other products and materials after temperature changes in high temperature tests due to their outstanding temperature self-control function. Therefore, they are also necessary testing equipment in the fields of aviation, automobiles, home appliances, and scientific research. The plates required for the production of constant temperature drying ovens require bending devices to be bent.

[0003] However, the existing upper dies of bending machines are mainly divided into straight knives, curved knives, and pointed knives. When a long plate is subjected to overhead bending processing, when the bending knife (i.e., straight knife) presses the plate into the die, the two sides of the plate are resisted by the inner wall of the die and will be bent. However, the size of the straight knife is limited, so that the two sides of the plate cannot fully fit with the inner wall of the die. After the bending knife is out of contact with the plate, the plate is very likely to rebound, which has an adverse effect on product quality.

[0004] For example, a sheet bending device disclosed in Chinese patent CN219880978U is provided with an external base, a bending mechanism, and a side pressure mechanism, so that on the one hand, the device can bend longer sheets, so that the bending knife (i.e., a straight knife) can perform a processing bending process on the sheet greater than or equal to 90 degrees. On the other hand, the side pressure mechanism can be used to press and hold both sides of the sheet during bending to reduce the protrusion of metal material on both sides of the sheet, and at the same time, the two sides of the sheet are more closely fitted to the bending groove, thereby optimizing product quality.

[0005] However, when the bending device bends the plate, both ends of the plate will be tilted, so that the plate is completely bent, and processing cannot be performed when only a partial bending of the plate is required.

[0006] For this reason, we urgently need to provide a plate bending device for processing a constant temperature drying oven. Utility Model Content

[0007] The purpose of the utility model is to provide a plate bending device for processing a constant temperature drying oven, so as to solve the problem that when the bending device proposed in the above background technology bends the plate, the two ends of the plate will be warped, thereby making the plate completely bent, and the plate cannot be processed when only partial bending is required.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plate bending device for processing a constant temperature drying oven, comprising a workbench and a support column, the support column is fixedly connected to the four corners of the lower side of the workbench, the upper end of the workbench is connected to a bending mechanism, the bending mechanism comprises a bending unit and a clamping unit, the bending unit is arranged on the upper side of the workbench, and the clamping unit is arranged at the upper end of the workbench.

[0009] The bending unit includes a bending seat, a support frame, a telescopic member, a bending block, a support plate, a first bearing, a rotating rod and a limiting roller. The bending seat is fixedly connected to the upper middle position of the workbench, the support frame is fixedly connected to the upper rear end middle position of the workbench, the telescopic member is fixedly connected to the upper middle position of the support frame, the bending block is fixedly connected to the lower end of the output shaft of the telescopic member, the support plate is fixedly connected to the upper side of the workbench at the front and rear of the left and right ends of the bending seat, the first bearing is fixedly connected to the inner upper end of the support plate, the rotating rod is fixedly connected to the inner side of the first bearing, and the limiting roller is fixedly connected to the outer side of the rotating rod.

[0010] A further improvement is that two first bearings are fixedly connected to the inner upper end of each support plate on the upper side of the workbench, and the outer side of the limiting roller is rollingly connected to the outer side of the plate to be bent. Therefore, when the plate is bent, the positions of the left and right ends of the plate at the bending part are limited by the limiting roller, so that the plate can be partially bent.

[0011] A further improvement is that the clamping unit includes a second bearing, a threaded rod, a rotating handle, a limit rod, a movable plate, a spring and a pressure plate, the second bearing is connected to the left and right ends of the inside of the workbench, the threaded rod is fixedly connected to the inner side of the second bearing, the rotating handle is fixedly connected to the end of the threaded rod away from the second bearing, the limit rod is connected to the left and right ends of the inside of the workbench, the movable plate is connected to the outer end of the limit rod, the spring is fixedly connected to the side of the upper end of the movable plate close to the support frame, and the pressure plate is fixedly connected to the end of the spring away from the movable plate.

[0012] A further improvement is that grooves are symmetrically provided above the left and right ends of the workbench, a circular groove is provided in the middle of one end of the groove near the middle of the workbench, and limiting holes are provided at the front and rear ends of the lower part of the movable plate, the outer side of the second bearing is fixedly connected to the inner side of the circular groove, the outer side of the limiting rod is slidably connected to the inner side of the limiting hole, and the outer side of the lower end of the movable plate is slidably connected to the inner side of the groove. Therefore, when the movable plate slides inside the groove, it can only slide along the outer side of the limiting rod, thereby limiting the movement of the movable plate.

[0013] A further improvement is that a threaded hole is provided in the middle of the lower end of the movable plate, and the outer side of the threaded rod is threadedly connected to the inner side of the threaded hole. Thus, when the rotating handle is turned to drive the threaded rod to rotate, the movable plate located inside the groove can be driven to slide along the outer side of the limit rod, thereby driving the upper spring and the pressure plate to move together.

[0014] A further improvement is that the side of the pressing plate away from the spring abuts against the left and right ends of the plate to be bent, so that during the bending process, the two ends of the plate will be clamped and kept fixed by the pressing plate, ensuring the accuracy of the bending of the plate.

[0015] A further improvement is that a non-slip pad is fixedly connected to one side of the pressing plate away from the spring, so that when the plate is clamped by the pressing plate, the non-slip pad on the outside of the pressing plate contacts the left and right ends of the plate, so that the plate can be clamped and fixed more firmly.

[0016] In summary, the present application discloses a plate bending device for processing a constant temperature drying oven.

[0017] This technical solution slides the plate onto the bending seat through the limiting rollers so that the left and right ends of the plate are located between the limiting rollers. When the plate is bent, the positions of the left and right ends of the bending part are limited by the limiting rollers, thereby partially bending the plate.

[0018] Furthermore, by moving the movable plate to drive the pressing plate to move to the left and right ends of the plate, during the bending process of the plate, the two ends of the plate will be clamped and kept fixed by the pressing plate, thereby ensuring the accuracy of the bending of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the clamping unit of the utility model;

[0021] Figure 3 This is a structural schematic diagram of the support plate of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the bending block of the utility model.

[0023] In the figure: 1. workbench; 2. support column; 301. bending seat; 302. support frame; 303. telescopic member; 304. bending block; 305. support plate; 306. first bearing; 307. rotating rod; 308. limiting roller; 401. second bearing; 402. threaded rod; 403. rotating handle; 404. limiting rod; 405. moving plate; 406. spring; 407. pressure plate. DETAILED DESCRIPTION

[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 4 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A plate bending device for processing a constant temperature drying oven comprises a workbench 1 and a support column 2, wherein the support column 2 is fixedly connected to the four corners of the lower side of the workbench 1, and the upper end of the workbench 1 is connected to a bending mechanism, which comprises a bending unit and a clamping unit. The bending unit is arranged on the upper side of the workbench 1, and the clamping unit is arranged at the upper end of the workbench 1.

[0028] The bending unit includes a bending seat 301, a support frame 302, a telescopic member 303, a bending block 304, a support plate 305, a first bearing 306, a rotating rod 307 and a limiting roller 308. The bending seat 301 is fixedly connected to the upper middle position of the workbench 1, the support frame 302 is fixedly connected to the upper rear end middle position of the workbench 1, the telescopic member 303 is fixedly connected to the upper middle position of the support frame 302, the telescopic member 303 is a hydraulic cylinder, the bending block 304 is fixedly connected to the lower end of the output shaft of the telescopic member 303, the support plate 305 is fixedly connected to the upper side of the workbench 1, and is located in front and behind the left and right ends of the bending seat 301. The first bearing 306 is fixedly connected to the inner upper end of the support plate 305, the rotating rod 307 is fixedly connected to the inner side of the first bearing 306, and the limiting roller 308 is fixedly connected to the outer side of the rotating rod 307.

[0029] Two first bearings 306 are fixedly connected to the inner upper end of each support plate 305 on the upper side of the workbench 1, and the outer side of the limiting roller 308 is rollingly connected to the outer side of the plate to be bent. Therefore, when the plate is bent, the positions of the left and right ends of the plate at the bending part are limited by the limiting roller 308, so that the plate can be partially bent.

[0030] Embodiment 2:

[0031] On the basis of Example 1: the clamping unit includes a second bearing 401, a threaded rod 402, a rotating handle 403, a limiting rod 404, a movable plate 405, a spring 406 and a pressure plate 407, the second bearing 401 is connected to the left and right ends inside the workbench 1, the threaded rod 402 is fixedly connected to the inner side of the second bearing 401, the rotating handle 403 is fixedly connected to the end of the threaded rod 402 away from the second bearing 401, the limiting rod 404 is connected to the left and right ends inside the workbench 1, and the movable plate 405 is connected to the outer end of the limiting rod 404, grooves are symmetrically opened above the left and right ends inside the workbench 1, a circular groove is opened in the middle position of one end of the groove close to the middle position of the workbench 1, and limiting holes are opened at the front and rear ends of the lower part of the movable plate 405, the outer side of the second bearing 401 is fixedly connected to the inner side of the circular groove, the outer side of the limiting rod 404 is slidably connected to the inner side of the limiting hole, and the outer side of the lower end of the movable plate 405 is slidably connected to the inner side of the groove. Therefore, when the movable plate 405 slides on the inner side of the groove, it can only slide along the outer side of the limiting rod 404 , thereby limiting the movement of the movable plate 405 .

[0032] The spring 406 is fixedly connected to the side of the upper end of the moving plate 405 close to the support frame 302, and the pressing plate 407 is fixedly connected to the end of the spring 406 away from the moving plate 405. A threaded hole is provided in the middle of the lower end of the moving plate 405, and the outer side of the threaded rod 402 is threadedly connected to the inner side of the threaded hole. Therefore, when the rotating handle 403 is turned to drive the threaded rod 402 to rotate, the inner side of the moving plate 405 located in the groove can be driven to slide along the outer side of the limiting rod 404, thereby driving the spring 406 and the pressing plate 407 at the upper end to move together.

[0033] The side of the pressing plate 407 away from the spring 406 abuts against the left and right ends of the plate to be bent. Thus, during the bending process, the two ends of the plate will be clamped and fixed by the pressing plate 407, ensuring the accuracy of the bending of the plate.

[0034] Embodiment three:

[0035] On the basis of the first embodiment: a non-slip pad is fixedly connected to the side of the pressing plate 407 away from the spring 406. Therefore, when the pressing plate 407 is used to clamp the plate, the non-slip pad on the outside of the pressing plate 407 contacts the left and right ends of the plate, so that the plate can be clamped and fixed more firmly.

[0036] Working principle: When in use, slide the plate to be bent in the constant temperature drying oven between the limiting rollers 308 until the two ends of the plate are located between the limiting rollers 308, then turn the rotating handle 403 to drive the threaded rod 402 to rotate, while the movable plate 405 is located on the inner side of the groove and slides along the outer side of the limiting rod 404, thereby driving the upper spring 406 and the pressure plate 407 to move together, until the pressure plate 407 moves to contact the left and right ends of the plate, start the telescopic member 303 and its output shaft moves downward to drive the bending block 304 to move downward, and press the bending position of the plate down to the bending seat 301 for bending. At the same time, the two ends of the plate shrink inward along the limiting rollers 308. After the bending is completed, restart the telescopic member 303 to lift the bending block 304, and then take the bent plate out from the bending seat 301.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A plate bending device for processing a constant temperature drying oven, comprising a workbench (1) and a support column (2), wherein the support column (2) is fixedly connected to the four corners of the lower side of the workbench (1), characterized in that: The upper end of the workbench (1) is connected to a bending mechanism, the bending mechanism comprising a bending unit and a clamping unit, the bending unit is arranged on the upper side of the workbench (1), and the clamping unit is arranged at the upper end of the workbench (1); The bending unit comprises a bending seat (301), a support frame (302), a telescopic member (303), a bending block (304), a support plate (305), a first bearing (306), a rotating rod (307) and a limiting roller (308); the bending seat (301) is fixedly connected to the middle position of the upper side of the workbench (1); the support frame (302) is fixedly connected to the middle position of the upper rear end of the workbench (1); the telescopic member (303) is fixedly connected to the support frame (302); In the middle position of the upper side, the bending block (304) is fixedly connected to the lower end of the output shaft of the telescopic member (303), the support plate (305) is fixedly connected to the upper side of the workbench (1) and is located in front and behind the left and right ends of the bending seat (301), the first bearing (306) is fixedly connected to the inner upper end of the support plate (305), the rotating rod (307) is fixedly connected to the inner side of the first bearing (306), and the limiting roller (308) is fixedly connected to the outer side of the rotating rod (307).

2. A plate bending device for a constant temperature drying oven according to claim 1, characterized in that: The inner upper end of each support plate (305) on the upper side of the workbench (1) is fixedly connected to two first bearings (306), and the outer side of the limiting roller (308) is rollingly connected to the outer side of the plate to be bent.

3. The plate bending device for processing a constant temperature drying oven according to claim 1, characterized in that: The clamping unit comprises a second bearing (401), a threaded rod (402), a rotating handle (403), a limiting rod (404), a movable plate (405), a spring (406) and a pressure plate (407), wherein the second bearing (401) is connected to the left and right ends inside the workbench (1), the threaded rod (402) is fixedly connected to the inner side of the second bearing (401), the rotating handle (403) is fixedly connected to one end of the threaded rod (402) away from the second bearing (401), the limiting rod (404) is connected to the left and right ends inside the workbench (1), the movable plate (405) is connected to the outer end of the limiting rod (404), the spring (406) is fixedly connected to a side of the upper end of the movable plate (405) close to the support frame (302), and the pressure plate (407) is fixedly connected to one end of the spring (406) away from the movable plate (405).

4. A plate bending device for a constant temperature drying oven according to claim 3, characterized in that: The workbench (1) has grooves symmetrically formed above the left and right ends, the workbench (1) has a circular groove formed in the middle of one end of the groove close to the middle of the workbench (1), and the movable plate (405) has limiting holes formed at the front and rear ends at the lower part of the interior, the outer side of the second bearing (401) is fixedly connected to the inner side of the circular groove, the outer side of the limiting rod (404) is slidably connected to the inner side of the limiting hole, and the outer side of the lower end of the movable plate (405) is slidably connected to the inner side of the groove.

5. The plate bending device for processing a constant temperature drying oven according to claim 3, characterized in that: A threaded hole is provided in the middle of the lower end of the movable plate (405), and the outer side of the threaded rod (402) is threadedly connected to the inner side of the threaded hole.

6. The plate bending device for processing a constant temperature drying oven according to claim 3, characterized in that: The side of the pressing plate (407) away from the spring (406) abuts against the left and right ends of the plate to be bent.

7. The plate bending device for processing a constant temperature drying oven according to claim 3, characterized in that: A non-slip pad is fixedly connected to one side of the pressure plate (407) away from the spring (406).

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