Hydraulic machine with self-cleaning function

Abstract

The utility model relates to the technical field of hydraulic equipment, in particular to a hydraulic machine with a self-cleaning function, which comprises a base, a conveying device and a hydraulic device, and a cleaning device is integrated on an upper pressing plate of the hydraulic device and comprises fixing frames fixed on two sides of the upper pressing plate. The power unit is arranged on the fixing frame, the transmission unit is driven by the power unit, the closed-loop conveying belt is installed through a roll shaft set, the scraping device is arranged at the running tail end of the conveying belt, and the scraping device comprises a scraping plate elastically connected to the surface of the conveying belt in a pressing mode. Through the arrangement of the components, foreign matters such as chippings adhered to the surface of the pressing plate of the hydraulic machine can be scraped, production does not need to be paused in the cleaning process, and blanking operation of the hydraulic machine on a blanked object is not affected.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic equipment technology, specifically to a hydraulic press with a self-cleaning function. Background Technology

[0002] In many industrial production fields, such as leather processing, hydraulic presses are widely used in stamping, blanking, and other processes due to their powerful pressure output capabilities. In these processes, the hydraulic press applies enormous pressure through a pressure plate, causing a die to blank the material being processed, thereby obtaining the desired part shape.

[0003] However, existing hydraulic presses have a significant problem in practical use: after the blanking operation is completed, debris and other foreign matter easily adhere to the surface of the press plate. Once these debris adheres to the plate surface, it will seriously affect the quality of the product during the next blanking round. For example, it can cause defects such as indentations and scratches on the surface of the blanked product, reduce the dimensional accuracy and surface quality of the product, increase the scrap rate, thereby increasing production costs, reducing production efficiency, and affecting the economic benefits of the enterprise.

[0004] To address this issue, some companies are currently attempting to manually clean the surface of the pressure plates periodically. However, this method is not only labor-intensive and time-consuming, but also requires production to be paused during cleaning, resulting in a significant reduction in production efficiency. Furthermore, manual cleaning is difficult to achieve a complete clean, leaving some debris residue that cannot fundamentally solve the problem of debris adhesion affecting product quality. Some companies have also tried installing simple air-blowing devices on hydraulic presses, but because the blowing position and force are difficult to control precisely, this not only fails to effectively remove all adhered debris but may also blow debris onto other parts of the worktable, causing secondary pollution and affecting the normal operation of surrounding equipment.

[0005] In conclusion, there is an urgent need to develop a new hydraulic press to overcome the above-mentioned defects and meet the industrial production demand for high-quality and high-efficiency punching processing. Utility Model Content

[0006] The purpose of this utility model is to provide a hydraulic press with a self-cleaning function, which aims to solve the technical problem that after the hydraulic press has completed the punching operation on the object being punched, the surface of the pressure plate of the hydraulic press is easily covered with foreign objects such as debris.

[0007] To achieve the above objectives, this utility model provides a hydraulic press with a self-cleaning function, characterized in that it includes a base, a conveying device, and a hydraulic device. The upper pressure plate of the hydraulic device integrates a cleaning device, which includes: a fixed frame fixed to both sides of the upper pressure plate; a power unit mounted on the fixed frame and a transmission unit driven by the power unit; a closed-loop conveyor belt mounted via a roller assembly; and a scraping device located at the end of the conveyor belt, comprising a scraper elastically pressed against the surface of the conveyor belt.

[0008] Preferably, the conveying device is a chain-type circulating conveyor belt, and a shelf is provided on the conveying device. The shelf is circulated and driven by the transmission chain in the conveying device, and the shelf is always kept horizontal and upward. A die is provided on the shelf.

[0009] Preferably, the transmission unit includes a chain transmission mechanism consisting of a drive sprocket, a transmission chain, and a transmission sprocket, wherein the drive sprocket is connected to the output shaft of the power unit, and the transmission sprocket is coaxially fixed with the first roller shaft.

[0010] Preferably, the roller assembly includes a first roller and a fourth roller arranged symmetrically to form a main drive roller, and a second roller and a third roller to form a limiting roller, wherein the diameter of the second roller and the third roller is smaller than that of the first roller and the fourth roller, and the difference in their installation height forms a stepped drop equal to the thickness of the conveyor belt.

[0011] Preferably, the scraping device includes a fixed plate and a connecting rod, the connecting rod is movably disposed in the fixed plate, a spring is sleeved on the connecting rod, and a mounting plate is pre-tightened by the spring. The lower part of the mounting plate is provided with a scraper that is angled and in contact with the surface of the conveyor belt, and an auxiliary plate is connected to the end of the scraper.

[0012] Preferably, the conveyor belt is made of anti-static, high-hardness PU.

[0013] The hydraulic press with self-cleaning function provided in this embodiment of the utility model has at least one of the following technical effects:

[0014] This utility model discloses a hydraulic press with a self-cleaning function. By setting a cleaning device linked to the upper pressure plate, and using a cleaning method in which the transmission unit drives the conveyor belt and the elastic scraper to cooperate, the surface of the conveyor belt is scraped and cleaned during the return stroke of the punching process. This can thoroughly remove the residual debris generated during punching, effectively avoiding defects such as surface indentations and scratches on the next round of punching caused by residual debris. This greatly improves the dimensional accuracy and surface quality of the product, reduces the scrap rate, and ensures the stability and reliability of product quality.

[0015] This utility model discloses a hydraulic press with a self-cleaning function. Through the linkage control of the power unit and the hydraulic system, the conveyor belt cleaning operation and the punching process are coordinated in sequence. The cleaning action is automatically completed during the return phase of the upper pressure plate. The machine can remove the debris generated when the hydraulic device punches the workpiece without stopping the machine. Compared with the traditional manual cleaning method, the production efficiency is greatly improved, the cleaning effect is better, and the labor cost is reduced.

[0016] The scraping device in this utility model of a hydraulic press with self-cleaning function maintains close contact between the scraper and the conveyor belt through spring preload. Unlike simple air blowing devices that may blow debris to other parts of the worktable and cause secondary pollution, this self-cleaning function removes debris by scraping it off with a scraper, preventing debris from scattering to other parts of the worktable. This effectively avoids affecting the normal operation of surrounding equipment, ensuring a clean working environment and stable equipment operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A perspective view of a hydraulic press with a self-cleaning function provided for an embodiment of this utility model.

[0019] Figure 2 A partial view of a hydraulic press with a self-cleaning function provided for an embodiment of this utility model.

[0020] Figure 3 A perspective view of a cleaning device in a hydraulic press with a self-cleaning function, provided as an embodiment of this utility model.

[0021] Figure 4 A side view of a cleaning device in a hydraulic press with a self-cleaning function, provided as an embodiment of this utility model.

[0022] Figure 5 A front view of a cleaning device in a hydraulic press with a self-cleaning function, provided for an embodiment of this utility model.

[0023] Figure 6 A perspective view of a scraping device in a hydraulic press with a self-cleaning function, provided as an embodiment of this utility model.

[0024] The following are the labeling elements in the figure:

[0025] 10—Base; 20—Conveying device; 21—Shelf; 30—Die; 40—Hydraulic device

[0026] 41—Hydraulic system 42—Upper pressure plate 43—Lower pressure plate 44—Support plate 50—Cleaning device

[0027] 51—Fixed frame; 52—Power unit; 53—Transmission unit; 531—Drive sprocket

[0028] 532—Drive chain; 533—Drive sprocket; 54—Roller assembly; 541—Bearing

[0029] 542—First roller shaft; 543—Second roller shaft; 544—Third roller shaft; 545—Fourth roller shaft

[0030] 55—Conveyor belt 56—Scraping device 561—Fixing plate 562—Connecting rod 563—Mounting plate

[0031] 564—Scraper; 565—Auxiliary plate; 566—Spring; 60—Outer casing. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0036] In one embodiment of this utility model, such as Figure 1-2 As shown, a hydraulic press with self-cleaning function is provided, including a base 10, a conveying device 20, a die 30, a hydraulic device 40, a cleaning device 50, and a housing 60.

[0037] A conveying device 20 extending from the base 10 is installed on the base 10. The conveying device 20 is a chain-type circulating conveyor belt. A placement plate 21 is provided on the conveying device 20. The placement plate 21 is circulated and driven by the transmission chain in the conveying device 20, and the placement plate 21 always remains horizontal and upward, so that the workpiece to be processed can be continuously moved to the bottom of the hydraulic device 40. A die 30 is provided on the placement plate 21. The die 30 plays the role of punching the workpiece to be processed into the required shape under the pressure of the hydraulic device 40. The hydraulic device 40 is mounted above the conveying device 20. A cleaning device 50 is fixedly installed in the hydraulic device 40. A housing 60 is provided around the hydraulic device 40 and the cleaning device 50.

[0038] The hydraulic device 40 consists of a hydraulic system 41, an upper pressure plate 42, a lower pressure plate 43, and a support plate 44. The hydraulic system 41 is fixed to the base 10 by a fixing column. The upper pressure plate 42, which is sleeved on the fixing column, is fixedly connected to the bottom of the hydraulic system 41. The upper pressure plate 42 moves up and down with the movement of the hydraulic column in the hydraulic system 41. The lower pressure plate 43, which is fixed to the base 10, is located below the upper pressure plate 42. The support plate 44 is fixed on the upper surface of the lower pressure plate 43. The support plate 44 supports the placement plate 21, so that when the placement plate 21, carrying the die 30 and the workpiece to be processed, moves to the position directly below the upper pressure plate 42 under the conveying action of the conveying device 20, the placement plate 21, the die 30, and the workpiece to be processed can be stably placed on the lower pressure plate 43. Under the pressure of the hydraulic system 41 and the upper pressure plate 42, the workpiece to be processed is punched.

[0039] like Figure 3-6As shown, the cleaning device 50 is fixed on the upper pressure plate 42. The cleaning device 50 consists of a fixed frame 51, a power unit 52, a transmission unit 53, a roller group 54, a conveyor belt 55, and a scraping device 56.

[0040] The fixing frame 51 is fixed to both sides of the upper pressure plate 42. The fixing frame 51 serves to fix the cleaning device 50 on the upper pressure plate 42. The power unit 52 is fixed to the fixing frame 51. The power unit 52 serves to provide power to the cleaning device 50. The power unit 52 is connected to the transmission unit 53.

[0041] The transmission unit 53 consists of a drive sprocket 531, a transmission chain 532, and a transmission sprocket 533. The drive sprocket 531 is mounted on the output shaft of the power unit 52. The transmission chain 532 is sleeved on the drive sprocket 531. The other end of the transmission chain 532 is connected to the transmission sprocket 533, thereby transmitting the driving force generated by the power unit 52 to the transmission sprocket 533.

[0042] The roller assembly 54 consists of bearings 541, a first roller 542, a second roller 543, a third roller 544, and a fourth roller 545. Multiple bearings 541 are fixed to the mounting bracket 51, serving to secure the multiple rollers to the bracket. The first roller 542 is fixed to one side of the upper pressure plate 42 via the mounting bracket 51 and bearings 541. A drive sprocket 533 is fixed to the round shaft at one end of the first roller 542, causing it to rotate. A second roller 543 is positioned between the first roller 542 and the upper pressure plate 42. Preferably, the diameter of the second roller 543 is smaller than that of the first roller 542, and the lowest point of the second roller 543 is higher than... The lowest point of the first roller 542 allows the conveyor belt 55 to be tightly attached to the bottom surface of the upper pressure plate 42. The third roller 544 and the fourth roller 545 are located on the other side of the upper pressure plate 42 and are symmetrically arranged with respect to the first roller 542 and the second roller 543. The conveyor belt 55 is sleeved on the first roller 542 and the fourth roller 545 and rotates under the drive of the first roller 542. At the same time, the conveyor belt 55 is tightly attached to the bottom surface of the upper pressure plate 42 under the limiting action of the second roller 543 and the third roller 544. The first roller 542 and the fourth roller 545 serve to install the conveyor belt 55, and the second roller 543 and the third roller 544 serve to restrict the shape of the conveyor belt 55.

[0043] The scraping device 56 is fixedly installed at one end of the upper pressure plate 42 where the roller assembly 54 is located. The scraping device 56 serves to scrape away foreign objects such as debris adhering to the conveyor belt 55.

[0044] The scraping device 56 consists of a fixed plate 561, a connecting rod 562, a mounting plate 563, a scraper 564, an auxiliary plate 565, and a spring 566.

[0045] The fixing plate 561 is fixed to the fixing frame 51. The fixing plate 561 has a circular hole (not shown) and serves to install the connecting rod 562. The connecting rod 562 is located in the circular hole on the fixing plate 561. An mounting plate 563 is fixedly installed on the connecting rod 562. A scraper 564 is provided below the mounting plate 563. The top end of the scraper 564 is tangent to the ground of the conveyor belt 55. An auxiliary plate 565 is provided at the bottom of the scraper 564. Springs 566 are sleeved on both ends of the connecting rod 562. One end of the spring 566 is fixed to the inner side of the fixing plate 561, and the other end is fixed to the upper surface of the mounting plate 563. The mounting plate 563, scraper 564, auxiliary plate 565, and spring 566 are fixed together by bolts or other connection methods. The spring 566 serves to keep the top of the scraper 564 in close contact with the bottom surface of the conveyor belt 55 under its own elastic force.

[0046] The working principle of this utility model is as follows: A hydraulic press with a self-cleaning function is used when the workpiece to be processed is placed on the die 30 above the placement plate 21. Under the conveying action of the conveying device 20, the placement plate 21 moves the die 30 and the workpiece to be processed towards the upper pressure plate 42 on the hydraulic device 40. When the placement plate 21 with the workpiece to be processed moves above the support plate 44 in the hydraulic device 40, the conveying device 20 stops moving. At this time, the hydraulic system 41 in the hydraulic device 40 causes the hydraulic column to move the upper pressure plate 42 towards the workpiece to be processed, applying pressure to the workpiece. Under the action of the die 30, the workpiece is punched and shaped. At this time, the hydraulic column of the hydraulic system 41 drives the upper pressure plate 42 to move upward. At the same time as the upper pressure plate 42 moves upward, the power unit 52 on the cleaning device 50 drives the drive sprocket 531 to drive the transmission chain 532, so that the transmission sprocket 531... 3 drives the first roller shaft 542 to rotate. Under the action of the first roller shaft 542, the conveyor belt 55 rotates. At this time, under the scraping action of the scraper 564, the debris on the surface of the conveyor belt 55 is scraped clean. At the same time, the workpiece to be processed is moved by the conveying device 20 to the rear of the hydraulic system 41. A new batch of workpieces to be processed moves to the bottom of the hydraulic device 40. The power unit 52 stops moving, thereby stopping the conveyor belt 55. The hydraulic system 41 works, causing the upper pressure plate 42 to apply pressure to the workpieces to be processed. This cycle repeats, and the workpieces to be processed continuously move to the bottom of the hydraulic system 41. The hydraulic system 41 continuously punches the workpieces to be processed. At the same time, when the upper pressure plate 42 moves upward to move the workpieces to the outside of the hydraulic system 41, the cleaning device 50 cleans the ground of the conveyor belt 55. The cleaning effect is good and does not affect the punching work of the hydraulic device 40 on the workpieces to be processed.

[0047] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic press with a self-cleaning function, characterized in that: The device includes a base (10), a conveying device (20), and a hydraulic device (40), characterized in that: a cleaning device (50) is integrated on the upper pressure plate (42) of the hydraulic device (40), the cleaning device (50) comprising: Fixing brackets (51) fixed to both sides of the upper pressure plate A power unit (52) mounted on a fixed frame and a transmission unit (53) driven by it. Closed-loop conveyor belt (55) installed via roller assembly (54) A scraping device (56) located at the end of the conveyor belt includes a scraper (564) that is elastically pressed against the surface of the conveyor belt (55).

2. A hydraulic press with self-cleaning function according to claim 1, characterized in that: The conveying device (20) is a chain-type circulating conveyor belt. The conveying device (20) is provided with a placement plate (21). The placement plate (21) is circulated and driven by the transmission chain in the conveying device (20). The placement plate (21) always maintains a horizontal upward state. The placement plate (21) is provided with a cutting die (30). The cutting edge of the cutting die (30) is set towards the object to be processed.

3. The hydraulic press according to claim 1, characterized in that: The transmission unit (53) includes a chain transmission mechanism consisting of a drive sprocket (531), a transmission chain (532), and a transmission sprocket (533), wherein the drive sprocket (531) is connected to the output shaft of the power unit (52), and the transmission sprocket (533) is coaxially fixed with the first roller shaft (542).

4. A hydraulic press with self-cleaning function according to claim 1, characterized in that: The roller assembly (54) includes a first roller (542) and a fourth roller (545) arranged symmetrically to form a main drive roller, and a second roller (543) and a third roller (544) to form a limiting roller. The diameters of the second roller (543) and the third roller (544) are smaller than those of the first roller (542) and the fourth roller (545), and the difference in their installation heights forms a stepped drop equal to the thickness of the conveyor belt (55).

5. A hydraulic press with self-cleaning function according to claim 1, characterized in that: The scraping device (56) includes a fixed plate (561) and a connecting rod (562). The connecting rod (562) is movably disposed in the fixed plate (561). A spring (566) is sleeved on the connecting rod (562). A mounting plate (563) is pre-tightened by the spring (566). A scraper (564) is provided at the lower part of the mounting plate (563) and is arranged at an angle to and in contact with the surface of the conveyor belt (55). An auxiliary plate (565) is connected to the end of the scraper (564).

6. A hydraulic press with self-cleaning function according to any one of claims 1-4, characterized in that: The conveyor belt (55) is made of anti-static, high-hardness PU.

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