Hydraulic machine convenient to demould and used for machining automotive upholstery

Abstract

The utility model discloses a hydraulic machine convenient to demould and used for processing automotive upholstery, and relates to the technical field of hydraulic machines. The device comprises a rack; the extrusion die is used for extruding a workpiece; the driver is used for driving the extrusion die to move; the hydraulic machine further comprises a fixed die, the fixed die is used for being matched with the extrusion die to press a workpiece, the bottom of the fixed die is fixedly connected with the outer wall of the rack, the fixed die comprises a fixed block, the top of the fixed block is slidably connected with a limiting plate, and the inner wall of the limiting plate is slidably connected with a demolding device through a first limiting groove. By arranging the demolding device, a mold on the forming block is pushed, the pressure relief hole is formed in the pushing process to prevent the ejection barrel from suddenly impacting a workpiece, air is blown out through the air blowing hole while the workpiece is pushed out, impurities and dust on the forming block are blown away by the air, and the purpose that the mold can be conveniently taken out of the hydraulic machine is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to a hydraulic press for processing automobile interior decoration parts which is convenient for demoulding. Background Art

[0002] A hydraulic press is a machine that uses liquid as the working medium and is made according to Pascal's principle to transfer energy to achieve various processes. A hydraulic press generally consists of three parts: the machine (host), the power system, and the hydraulic control system. Hydraulic presses are classified into valve hydraulic presses, liquid hydraulic presses, and engineering hydraulic presses.

[0003] In the prior art, the production of automotive interior parts requires press molding. During the process of the hydraulic press pressing the mold, the corners of the pressed workpiece fit the mold, and the debris on the fixed mold adsorbs the workpiece, making it difficult to demold the workpiece. If the workpiece is pried with a tool, the surface of the workpiece is easily damaged. Therefore, the workpiece is difficult to remove from the mold after production. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model solves the technical problems thereof by adopting the following technical solution: a hydraulic press for processing automobile interior decoration parts that is easy to demould, comprising: a frame; an extrusion die, the extrusion die is used to extrude the workpiece, the inner wall of the extrusion die is slidably connected to the outer wall of the frame; a driver, the driver is used to drive the extrusion die to move, the output end of the driver is fixedly connected to the top of the extrusion die; the hydraulic press also comprises: a fixed die, the fixed die is used to cooperate with the extrusion die to press the workpiece, the bottom of the fixed die is fixedly connected to the outer wall of the frame; the fixed die comprises a fixed block, the top of the fixed block is slidably connected to a limiting plate, the inner wall of the fixed block is fixedly connected to an inflation tube, the wall of the fixed block The mold release device comprises a T-tube, the inner wall of the T-tube is slidably connected with an ejector tube through a second limiting groove, and the second limiting groove is opened in the wall of the T-tube, a blowing hole is opened in the wall of the ejector tube, and a pressure relief hole is opened in the wall of the ejector tube, the mold on the molding block is pushed, and the pressure relief hole is provided when pushing to prevent the ejector tube from suddenly hitting the workpiece, and air is blown out through the blowing hole while pushing, and the air blows away the debris and dust on the molding block.

[0005] Preferably, the top of the frame is fixedly connected to the outer wall of the driver, the outer wall of the frame is fixedly connected to the bottom of the fixed block, the outer wall of the T-tube is slidably connected to the inner wall of the limit plate, the top of the limit plate is slidably connected to the bottom of the forming block, and the raised ejector cylinder can lift the workpiece, making the workpiece easier to pick up.

[0006] Preferably, the positioning device includes a pull ring, the outer wall of the pull ring is fixedly connected to a connecting rod, a compression spring is arranged on the outside of the connecting rod, the outer wall of the connecting rod is fixedly connected to a trapezoidal block, one end of the compression spring is fixedly connected to the outer wall of the trapezoidal block, the other end of the compression spring is fixedly connected to the inner wall of the fixed block, the inner wall of the fixed block is slidably connected to the outer wall of the connecting rod, and the limiting plate is limited by the trapezoidal block, so that the air outlet position of the air storage slot can be accurately aligned with the demoulding device, and the position of the limiting plate is fixed, so that the demoulding device can move normally and the position of the molding block is fixed, thereby achieving the purpose of auxiliary positioning.

[0007] The beneficial effects of the utility model are as follows:

[0008] 1. The utility model pushes the mold on the forming block by arranging a demoulding device. During the pushing, a pressure relief hole is arranged to prevent the ejector tube from suddenly hitting the workpiece. While pushing, air is blown out through the blowing hole. The air blows away the debris and dust on the forming block, thereby making it more difficult for the workpiece to fit on the fixed mold during the next pressing.

[0009] 2. The utility model sets a positioning device and performs a limiting operation on the limiting plate through a trapezoidal block, so that the air outlet position of the air storage slot can be accurately aligned with the demoulding device, and at the same time fixes the position of the limiting plate so that the demoulding device can move normally. While positioning the limiting plate, the position of the forming block is fixed, thereby achieving the purpose of auxiliary positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the front view of the utility model;

[0011] Figure 2 It is a cross-sectional view of the utility model;

[0012] Figure 3 It is a schematic diagram of the local structure of the fixed mold of the utility model;

[0013] Figure 4 It is a structural schematic diagram of the demoulding device of the utility model.

[0014] In the figure: 1, frame; 2, extrusion die; 3, driver; 4, fixed die; 41, fixed block; 42, inflation tube; 43, positioning device; 44, limit plate; 45, forming block; 46, demoulding device; 47, first limit groove; 48, air storage groove; 431, pull ring; 432, connecting rod; 433, compression spring; 434, trapezoidal block; 461, T-tube; 462, second limit groove; 463, ejector tube; 464, blowing hole; 465, pressure relief hole. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0016] Example: See Figure 1 - Figure 4The utility model provides a technical solution: a hydraulic press for processing automobile interior decoration parts that is easy to demould, comprising: a frame 1; an extrusion die 2, the extrusion die 2 is used to extrude the workpiece, and the inner wall of the extrusion die 2 is slidably connected to the outer wall of the frame 1; a driver 3, the driver 3 is used to drive the extrusion die 2 to move, and the output end of the driver 3 is fixedly connected to the top of the extrusion die 2; the hydraulic press also includes: a fixed die 4, the fixed die 4 is used to cooperate with the extrusion die 2 to press the workpiece, and the bottom of the fixed die 4 is fixedly connected to the outer wall of the frame 1; the fixed die 4 includes a fixed block 41, the top of the fixed block 41 is slidably connected to a limiting plate 44, and the fixed block The inner wall of the fixed block 41 is fixedly connected with an inflatable tube 42, a positioning device 43 is slidably connected in the wall of the fixed block 41, a molding block 45 is fixedly connected to the outer surface of the fixed block 41, and the inner wall of the limiting plate 44 is slidably connected with a demoulding device 46 through a first limiting groove 47, and the first limiting groove 47 is provided in the wall of the limiting plate 44, and an air storage groove 48 is provided in the wall of the limiting plate 44; the demoulding device 46 includes a T-tube 461, and the inner wall of the T-tube 461 is slidably connected with an ejection tube 463 through a second limiting groove 462, and the second limiting groove 462 is provided in the wall of the T-tube 461, and the wall of the ejection tube 463 is provided. The blowing hole 464 and the wall of the ejector tube 463 are provided with a pressure relief hole 465. The outside of the inflation tube 42 is connected to an air gun, and the air gun sends air into the air storage groove 48 of the fixed block 41 through the inflation tube 42. Since the air storage groove 48 is connected to the first limiting groove 47, the filled air will move into the first limiting groove 47. At this time, the demoulding device 46 in the first limiting groove 47 is moved by the airflow. When the airflow enters the demoulding device 46, the ejector tube 463 will be lifted up, and the ejector tube 463 will rise under the drive of the airflow until it is restricted by the second limiting groove 462. At this time, the ejector tube 463 will continue to rise, thereby driving the T-tube 461 rises, and at this time, the T-tube 461 is driven to rise. During the rising process of the ejector tube 463, part of the gas in the ejector tube 463 will circulate through the blowing hole 464 and the pressure relief hole 465. Since the workpiece and the forming block 45 are tightly fitted, the space between the workpiece and the forming block 45 is in a relatively closed environment. After part of the air flows into the pressure relief hole 465, not only can the tight fit between the workpiece and the forming block 45 be blown by the air, but also the pressure in the fitting space and the ejector tube 463 can be balanced, so as to prevent the ejector tube 463 from suddenly hitting the workpiece under the action of pressure and causing damage to the workpiece.

[0017] The top of the frame 1 is fixedly connected to the outer wall of the driver 3, the outer wall of the frame 1 is fixedly connected to the bottom of the fixed block 41, the outer wall of the T-tube 461 is slidably connected to the inner wall of the limit plate 44, the top of the limit plate 44 is slidably connected to the bottom of the forming block 45, and after the ejector tube 463 ejects the workpiece, the ejector tube 463 will continue to drive the T-tube 461 to rise until the T-tube 461 is stopped by the second limit groove 462, and at this time the ejector tube 463 lifts the workpiece for easy picking, and at the same time, the air blown out of the blowing hole 464 will blow toward the forming block 45, making it difficult for dust and other debris to adhere to the forming block 45.

[0018] The positioning device 43 includes a pull ring 431, the outer wall of the pull ring 431 is fixedly connected to a connecting rod 432, a compression spring 433 is arranged outside the connecting rod 432, the outer wall of the connecting rod 432 is fixedly connected to a trapezoidal block 434, one end of the compression spring 433 is fixedly connected to the outer wall of the trapezoidal block 434, the other end of the compression spring 433 is fixedly connected to the inner wall of the fixed block 41, the inner wall of the fixed block 41 is slidably connected to the outer wall of the connecting rod 432, and the side of the trapezoidal block 434 close to the opening position of the fixed block 41 has an inclined surface away from the fixed block 41 There is no inclined surface on one side, so that the trapezoidal block 434 is squeezed into the fixed block 41. At the same time, the trapezoidal block 434 and the fixed block 41 are squeezed until the trapezoidal block 434 reaches the groove position in the fixed block 41. The squeezed compression spring 433 pushes the trapezoidal block 434 to be stuck in the groove of the fixed block 41 in order to restore to the state before squeezing. At this time, the movement of the limit plate 44 to the rear and to the left and right sides is blocked by the fixed block 41, and the movement of the limit plate 44 to the front is blocked by the trapezoidal block 434, thereby achieving the purpose of positioning the ventilation position of the air storage slot 48.

[0019] Working principle:

[0020] When in use, the driver 3 on the frame 1 drives the extrusion die 2 to move toward the fixed die 4, and the extrusion die 2 and the forming block 45 extrude the workpiece. When the workpiece remains on the forming block 45, the outside of the inflation tube 42 is connected to an air gun, and the air gun sends air into the air storage groove 48 of the fixed block 41 through the inflation tube 42. Since the air storage groove 48 is connected to the first limiting groove 47, the filled air will move into the first limiting groove 47. At this time, the demoulding device 46 in the first limiting groove 47 is moved by the airflow. When the airflow enters the demoulding device 46, the ejector tube 463 will be lifted up, and the ejector tube 463 will rise under the drive of the airflow until it is restricted by the second limiting groove 462. At this time, the ejector tube 463 will continue to rise, thereby driving the T-tube 461 to rise. At this time, the T-tube 461 is driven to rise until the T-tube 461 contacts the surface of the pressed workpiece. In the process of the ejector tube 463 rising, part of the gas in the ejector tube 463 will be blown out. The air vents 464 and the pressure relief holes 465 are circulated. Since the air circulates in a vertically upward direction, even if there is air outflow, most of the air will still lift up the ejector tube 463. Since the workpiece and the forming block 45 are tightly fitted, the space between the workpiece and the forming block 45 is in a relatively closed environment, after some air flows in through the pressure relief holes 465, not only can the air blow the tight fit between the workpiece and the forming block 45, but also the pressure in the fitting space and the ejector tube 463 can be balanced to prevent the ejector tube 463 from suddenly hitting the workpiece under the action of pressure and causing damage to the workpiece. After the ejector tube 463 ejects the workpiece, the ejector tube 463 will continue to drive the T-tube 461 to rise until the T-tube 461 is stopped by the second limiting groove 462. At this time, the ejector tube 463 lifts up the workpiece for easy picking, and at the same time, the air blown out of the air vents 464 will blow toward the forming block 45, making it difficult for dust and other debris to adhere to the forming block 45.

[0021] A positioning device 43 is provided to position the forming block 45 and the ventilation position of the air storage slot 48. When the limiting plate 44 is installed on the fixed block 41, the limiting plate 44 is pushed into the fixed block 41 to squeeze the inclined surface position of the trapezoidal block 434. Since the trapezoidal block 434 has an inclined surface on one side close to the opening position of the fixed block 41 and has no inclined surface on the side away from the fixed block 41, the trapezoidal block 434 is squeezed into the fixed block 41. At the same time, the trapezoidal block 434 and the fixed block 41 are squeezed until the trapezoidal block 434 reaches the groove position in the fixed block 41. The squeezed compression spring 433 is restored to the state before being squeezed. Push the trapezoidal block 434 to get into the groove of the fixed block 41. At this time, the movement of the limit plate 44 to the rear and to the left and right sides is blocked by the fixed block 41, and the movement of the limit plate 44 to the front is blocked by the trapezoidal block 434, thereby achieving the purpose of positioning the ventilation position of the air storage slot 48. It is only necessary to pull the pull ring 431 to drive the connecting rod 432 and the trapezoidal block 434 to move, so that the trapezoidal block 434 is retracted into the fixed block 41, and the limit plate 44 can be taken out. Since the position of the limit plate 44 is fixed, the limit plate 44 and the bottom of the forming block 45 are matched and connected, which facilitates the bolt fixation of the forming block 45 and the fixed block 41, thereby achieving the purpose of positioning the forming block 45.

[0022] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A hydraulic press for processing automobile interior decoration parts that is easy to demould, comprising: Rack(1); An extrusion die (2), the extrusion die (2) being used for extruding a workpiece, the inner wall of the extrusion die (2) being slidably connected to the outer wall of the frame (1); A driver (3), the driver (3) being used to drive the extrusion die (2) to move, the output end of the driver (3) being fixedly connected to the top of the extrusion die (2); Characterized in that the hydraulic press also includes: A fixed die (4), the fixed die (4) being used to cooperate with the extrusion die (2) to press a workpiece, the bottom of the fixed die (4) being fixedly connected to the outer wall of the frame (1); The fixed mold (4) comprises a fixed block (41), the top of the fixed block (41) is slidably connected to a limit plate (44), the inner wall of the fixed block (41) is fixedly connected to an inflation tube (42), a positioning device (43) is slidably connected in the wall of the fixed block (41), the outer surface of the fixed block (41) is fixedly connected to a molding block (45), the inner wall of the limit plate (44) is slidably connected to a demoulding device (46) via a first limit groove (47), and the first limit groove (47) is provided in the wall of the limit plate (44), and an air storage groove (48) is provided in the wall of the limit plate (44); The demoulding device (46) comprises a T-shaped tube (461), the inner wall of the T-shaped tube (461) being slidably connected to an ejection tube (463) via a second limiting groove (462), and the second limiting groove (462) being provided in the wall of the T-shaped tube (461), a blowing hole (464) being provided in the wall of the ejection tube (463), and a pressure relief hole (465) being provided in the wall of the ejection tube (463).

2. A hydraulic press for processing automobile interior decoration parts that is easy to demould according to claim 1, characterized in that: The top of the frame (1) is fixedly connected to the outer wall of the driver (3), and the outer wall of the frame (1) is fixedly connected to the bottom of the fixing block (41).

3. The hydraulic press for processing automobile interior decoration parts that is easy to demould according to claim 1 is characterized in that: The outer wall of the T-shaped tube (461) is slidably connected to the inner wall of the limiting plate (44), and the top of the limiting plate (44) is slidably connected to the bottom of the forming block (45).

4. The hydraulic press for processing automobile interior decoration parts that is easy to demould according to claim 1 is characterized in that: The positioning device (43) comprises a pull ring (431), the outer wall of the pull ring (431) is fixedly connected to a connecting rod (432), a compression spring (433) is arranged outside the connecting rod (432), and the outer wall of the connecting rod (432) is fixedly connected to a trapezoidal block (434).

5. The hydraulic press for processing automobile interior decoration parts that is easy to demould according to claim 4 is characterized in that: One end of the compression spring (433) is fixedly connected to the outer wall of the trapezoidal block (434), the other end of the compression spring (433) is fixedly connected to the inner wall of the fixed block (41), and the inner wall of the fixed block (41) is slidably connected to the outer wall of the connecting rod (432).

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