Automatic hard alloy blank pressing device

Abstract

The utility model provides an automatic hard alloy blank pressing device and belongs to the technical field of alloy blank production. Comprising a main body, a working plate is fixedly connected to the top of the main body, fixing seats are fixedly connected to the two ends of the top of the working plate, first air cylinders are fixedly connected to the tops of the fixing seats, moving plates are fixedly connected to the output ends of the first air cylinders, and screw rods are rotatably connected to the interiors of the moving plates; the outer sides of the screw rods are in threaded connection with moving rods, and the opposite sides of the two moving rods are fixedly connected with fixing frames. By arranging the fixing assembly and the limiting strip, a mold can be fixed, the mold can be rapidly replaced through the device, the mold with different sizes can be fixed through cooperation of the screw rod and the moving rod, the stability of the mold can be enhanced through cooperation of the elastic design of the elastic piece and the upper clamping block, and the mold replacing efficiency is improved. The device is prevented from shaking during working, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy blank production, in particular to an automatic pressing device for cemented carbide blanks. Background Technique

[0002] Cemented carbide is an alloy material made of hard compounds of refractory metals and binding metals through powder metallurgy. Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, and corrosion resistance. In the production of cemented carbide, an automatic pressing device is generally used to press metal powder into cemented carbide blanks, and then the blanks are processed to complete the work.

[0003] When the existing automatic pressing device for cemented carbide blanks works, generally, the die bolts are fixed above the workbench, then metal powder is added into the die, and then the pressure plate is driven to descend by the cylinder above the die to squeeze the powder inside the die and press it into an alloy blank. However, in actual work, according to requirements, when the device needs to produce alloy blanks of different specifications, the die needs to be frequently replaced. Since the die is fixed by bolts in the device, the efficiency of replacing the die is low, and different-sized dies cannot be fixed. Moreover, when the pressed blank is too tightly attached to the die, it is difficult to demold it, reducing the production efficiency of the device.

[0004] Therefore, the utility model provides an automatic pressing device for cemented carbide blanks to meet the requirements. Content of the Utility Model

[0005] The utility model provides an automatic pressing device for cemented carbide blanks, which can solve the problems in the prior art that when the device needs to produce alloy blanks of different specifications according to requirements in actual work, the die needs to be frequently replaced. Since the die is fixed by bolts in the device, the efficiency of replacing the die is low, and different-sized dies cannot be fixed. Moreover, when the pressed blank is too tightly attached to the die, it is difficult to demold it, reducing the production efficiency of the device.

[0006] To solve the above technical problems, the utility model provides the following technical solutions:

[0007] An automatic pressing device for cemented carbide blanks, including a main body, a work plate is fixedly connected to the top of the main body, fixed seats are fixedly connected to both ends of the top of the work plate, a first cylinder is fixedly connected to the top of the fixed seat, a moving plate is fixedly connected to the output end of the first cylinder, a screw rod is rotatably connected to the inside of the moving plate, a moving rod is threadedly connected to the outside of the screw rod, fixing frames are fixedly connected to the opposite sides of the two moving rods, and a die is clamped to the top of the fixing frame; a fixing component, the fixing component is used to fix the die, and the fixing component is connected to the fixing frame.

[0008] Optionally, the number of the fixing components is four, and they are grouped in pairs and fixedly connected to two fixing frames respectively. Limit bars are fixedly connected to both sides of the fixing frames outside the fixing components.

[0009] Optionally, the fixing component includes a mounting piece connected to the fixing frame. A elastic piece is fixedly connected to the outside of the mounting piece, and a clamping block is fixedly connected to the other side of the elastic piece.

[0010] Optionally, holes are formed in the inner side of the mounting piece, avoidance grooves adapted to the holes are formed in the contact surface between the fixing frame and the elastic piece, fixing grooves adapted to the elastic pieces are formed on both sides of the mold, clamping grooves adapted to the clamping blocks are formed outside the fixing grooves, and limit grooves adapted to the limit bars are formed outside the mold.

[0011] Optionally, a limit ring is fixedly connected to the contact surface between the screw rod and the moving plate. The limit ring is rotatably connected inside the moving plate. A moving groove is formed inside the fixing seat. One end of the screw rod away from the mold passes through the moving groove and is fixedly connected with a turning handle.

[0012] Optionally, limit rods are fixedly connected to the opposite sides of the two moving plates. The moving rods include sliding sleeves at both ends. One of the sliding sleeves is threadedly connected to the outside of the screw rod, and the other sliding sleeve is slidably connected to the outside of the limit rod.

[0013] Optionally, a mounting frame is fixedly connected to the outside of the top of the main body. A second air cylinder is fixedly connected to the top end of the mounting frame. The output end of the second air cylinder is fixedly connected with a pressing plate. The pressing plate is located directly above the mold. Support feet are fixedly connected to the four corners of the bottom of the main body.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects:

[0015] In the above solution, by setting the fixing components and the limit bars, the mold can be fixed, so that the device can quickly replace the mold. And through the cooperation of the screw rod and the moving rod, the device can fix molds of different sizes. And through the elastic design of the elastic piece and the cooperation with the clamping block, the stability of the mold can be enhanced, avoiding its shaking during work, and improving the practicability of the device.

[0016] By setting the first air cylinder, the moving plate and the moving groove, after the alloy blank is pressed well, the first air cylinder can drive the mold to rise, so that the blank is separated from the mold, enabling the device to have the effect of automatic demolding, without the need for manual knocking to demold the blank, simplifying the production process, improving the production efficiency, and significantly reducing the complexity and labor intensity of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic three-dimensional structure diagram of an automatic pressing device for cemented carbide blanks;

[0018] Figure 2 Schematic three-dimensional structure diagram of the cooperation between the working plate and the fixed seat;

[0019] Figure 3 Schematic three-dimensional structure diagram of the cooperation between the mold and the fixing frame;

[0020] Figure 4 Schematic sectional three-dimensional structure diagram of the cooperation between the fixing frame and the fixing component;

[0021] Figure 5 Schematic three-dimensional structure diagram of the fixing component.

[0022] [Reference Signs]

[0023] 1, main body; 2, working plate; 3, fixed seat; 4, first cylinder; 5, moving plate; 6, screw; 7, moving rod; 8, fixing frame; 9, fixing component; 901, mounting plate; 902, elastic sheet; 903, clamping block; 10, avoidance groove; 11, limiting strip; 12, turning handle; 13, moving groove; 14, limiting rod; 15, mold; 16, mounting frame; 17, second cylinder; 18, pressing plate. Detailed Embodiment

[0024] The following combines the drawings and specific embodiments to describe in detail the automatic pressing device for cemented carbide blanks provided by the present utility model; meanwhile, it should be noted here that in order to make the embodiments more detailed, the following embodiments are preferred embodiments, and for some well-known technologies, those skilled in the art can also adopt other alternative methods.

[0025] As Figures 1 to 4As shown in the figure, an embodiment of the present utility model provides an automatic pressing device for cemented carbide blanks, including a main body 1. A working plate 2 is fixedly connected to the top of the main body 1. Fixed seats 3 are fixedly connected to both ends of the top of the working plate 2. A first cylinder 4 is fixedly connected to the top of the fixed seat 3. The output end of the first cylinder 4 is fixedly connected to a moving plate 5. A screw rod 6 is rotatably connected to the inside of the moving plate 5. A moving rod 7 is threadedly connected to the outside of the screw rod 6. Fixed frames 8 are fixedly connected to the opposite sides of the two moving rods 7. A mold 15 is clamped to the top of the fixed frame 8. A limiting ring is fixedly connected to the contact surface between the screw rod 6 and the moving plate 5. The limiting ring is rotatably connected to the inside of the moving plate 5. A moving groove 13 is formed inside the fixed seat 3. One end of the screw rod 6 away from the mold 15 passes through the moving groove 13 and is fixedly connected to a turning handle 12. Limiting rods 14 are fixedly connected to the opposite sides of the two moving plates 5. The moving rod 7 includes sliding sleeves at both ends. One of the sliding sleeves is threadedly connected to the outside of the screw rod 6, and the other sliding sleeve is slidably connected to the outside of the limiting rod 14. An installation frame 16 is fixedly connected to the outside of the top of the main body 1. A second cylinder 17 is fixedly connected to the top end of the installation frame 16. The output end of the second cylinder 17 is fixedly connected to a pressing plate 18. The pressing plate 18 is located directly above the mold 15. Supporting feet are fixedly connected to the four surrounding sides of the bottom of the main body 1. The holes inside the pressing plate 18 and the mold 15 are mutually adapted.

[0026] After ensuring that the mold 15 is in close contact with the working plate 2, metal powder is added into the mold 15. The second cylinder 17 is started, and the pressing plate 18 is pushed downward to enter the inside of the mold 15 until the pressing plate 18 contacts the raw material inside the mold 15. With the continuous pressure applied by the second cylinder 17, the pressing plate 18 presses the raw material inside the mold 15 to form the required blank shape. After the pressing is completed, the first cylinder 4 is started to drive the moving plate 5, the screw rod 6, the moving rod 7 and the fixed frame 8 to move upward. The mold 15 is lifted by the fixed frame 8, and the pressed blank is pushed away from the bottom of the mold 15 through the pressing plate 18 to complete the demolding.

[0027] During the demolding process, the two moving plates 5 rise synchronously under the drive of the first cylinder 4, driving the mold 15 and the blank inside it to rise together, ensuring the synchronism and consistency of the demolding action, and avoiding damage to the mold 15 or deformation of the blank caused by uneven local force. The moving groove 13 provides a stable guiding effect for the moving plate 5, ensuring the smoothness and accuracy of the moving plate 5 during the rising process. Through the cooperation of the above components, the device has the function of automatic demolding, eliminating the need for manual knocking demolding, reducing the labor intensity and safety risks of the operators, having higher stability and reliability, and reducing production accidents and quality problems caused by human factors.

[0028] Such as Figures 1 to 5As shown, a fixing component 9 is used to fix the mold 15. The fixing component 9 is connected to the fixing frame 8. There are four fixing components 9, which are grouped in pairs and fixedly connected to two fixing frames 8 respectively. The fixing frames 8 are located on both sides of the fixing component 9 and are fixedly connected with limiting strips 11. The fixing component 9 includes a mounting plate 901 connected to the fixing frame 8. The outer side of the mounting plate 901 is fixedly connected with a spring piece 902, and the other side of the spring piece 902 is fixedly connected with a clamping block 903. The inner side of the mounting plate 901 is provided with a hole, and the contact surface between the fixing frame 8 and the spring piece 902 is provided with an avoidance groove 10 adapted to the hole. Fixed grooves adapted to the spring piece 902 are provided on both sides of the mold 15, and clamping grooves adapted to the clamping block 903 are provided on the outer side of the fixing groove. Limiting grooves adapted to the limiting strip 11 are provided on the outer side of the mold 15.

[0029] When it is necessary to replace a mold 15 with the same specification but a different shape on the inside, push the mold 15 upward so that the slot squeezes the block 903 and squeezes the spring piece 902 to deform into the avoidance groove 10 until the block 903 is out of the slot and the unlocking is completed. Pull the mold 15 upward and insert the new mold 15 back into its original position. Fix the horizontal position of the mold 15 by the limit bar 11, and fix the vertical position of the mold 15 by the spring piece 902 and the block 903. When it is necessary to replace molds 15 of different sizes, rotate the screws 6 on both sides by turning the handle 12. Due to the threaded connection between the screw 6 and the shift rod 7, the shift rod 7 will move along the screw 6, thereby driving the fixing frames 8 on both sides to move until the distance between the two fixing frames 8 reaches a suitable position, and then insert the mold 15 downward to complete the replacement.

[0030] The spring piece 902 uses its good elastic properties and cooperates with the clamping block 903 to further enhance the stability of the fixed mold 15. By accurately snapping into the clamping slot of the mold 15, it effectively prevents the mold 15 from being displaced or shaken during operation, making the replacement of the mold 15 quick and simple. The mold 15 can be easily replaced by simply releasing the lock of the clamping block 903 without the need for complicated adjustment or calibration processes. The cooperation between the screw 6 and the shift rod 7 enables the device to easily adapt to molds 15 of different sizes without the need to replace additional fixed parts or perform complicated adjustments. At the same time, the sliding connection between the shift rod 7 and the limit rod 14 ensures stability and accuracy during the movement process, avoiding damage to the mold 15 or production accidents caused by poor movement or offset.

[0031] The working principle provided by the present utility model: After ensuring that the mold 15 is in close contact with the working plate 2, add metal powder into the mold 15, start the second cylinder 17, and push the pressing plate 18 to move downward. The pressing plate 18 enters the mold 15 until it contacts the raw material in the mold 15. With the continuous pressure of the second cylinder 17, the pressing plate 18 presses the raw material in the mold 15 to form the required blank shape. After the pressing is completed, start the first cylinder 4 to drive the moving plate 5, screw rod 6, moving rod 7, and fixing frame 8 to move upward. The fixing frame 8 lifts the mold 15, and the pressed blank is pushed away from the bottom of the mold 15 through the pressing plate 18 to complete demolding; when it is necessary to replace the mold 15 with the same specifications but different inner shapes, push the mold 15 upward, so that the card slot squeezes the block 903, and squeezes the elastic piece 902 to deform into the avoidance groove 10 until the block 903 disengages from the card slot to complete unlocking. Pull out the mold 15 upward, then insert the new mold 15 back into place, fix the horizontal position of the mold 15 through the limiting strip 11, and fix the vertical position of the mold 15 through the elastic piece 902 and the block 903; when it is necessary to replace the mold 15 of different sizes, rotate the screw rods 6 on both sides through the turning handle 12. Due to the threaded connection between the screw rod 6 and the moving rod 7, the moving rod 7 will move along the screw rod 6, thereby driving the fixing frames 8 on both sides to move until the distance between the two fixing frames 8 reaches an appropriate position, and then insert the mold 15 downward to complete the replacement.

[0032] The present utility model covers any substitutions, modifications, equivalent methods, and solutions made on the essence and scope of the present utility model; in order to enable the public to have a thorough understanding of the present utility model, specific details are described in detail in the above preferred embodiments of the present utility model, but those skilled in the art can fully understand the present utility model without these details.

[0033] The above is only the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. Automatic pressing device for cemented carbide blank, comprising a main body (1), characterized in that, A working plate (2) is fixedly connected to the top of the main body (1). Fixing seats (3) are fixedly connected to both ends of the top of the working plate (2). A first cylinder (4) is fixedly connected to the top of the fixing seat (3). The output end of the first cylinder (4) is fixedly connected to a moving plate (5). A screw rod (6) is rotatably connected inside the moving plate (5). A moving rod (7) is threadedly connected to the outer side of the screw rod (6). Fixing frames (8) are fixedly connected to the opposite sides of the two moving rods (7). A mold (15) is clamped to the top of the fixing frame (8). A fixing component (9) is used to fix the mold (15), and the fixing component (9) is connected to the fixing frame (8).

2. The automatic pressing device for cemented carbide blanks according to claim 1, wherein, The number of the fixing components (9) is four, and they are grouped in pairs and fixedly connected to the two fixing frames (8) respectively. Limiting strips (11) are fixedly connected to both sides of the fixing frame (8) where the fixing components (9) are located.

3. The automatic pressing device for carbide blanks according to claim 1, wherein The fixing component (9) includes a mounting piece (901) connected to the fixing frame (8). A spring piece (902) is fixedly connected to the outer side of the mounting piece (901). A clamping block (903) is fixedly connected to the other side of the spring piece (902).

4. The automatic pressing device for carbide blanks according to claim 3, wherein, Holes are formed inside the mounting piece (901). Avoidance grooves (10) adapted to the holes are formed on the contact surface between the fixing frame (8) and the spring piece (902). Fixing grooves adapted to the spring piece (902) are formed on both sides of the mold (15). Card slots adapted to the clamping block (903) are formed on the outer side of the fixing groove. Limiting grooves adapted to the limiting strips (11) are formed on the outer side of the mold (15).

5. The automatic pressing device for carbide blanks according to claim 1, wherein A limiting ring is fixedly connected to the contact surface between the screw rod (6) and the moving plate (5). The limiting ring is rotatably connected inside the moving plate (5). A moving groove (13) is formed inside the fixing seat (3). One end of the screw rod (6) away from the mold (15) passes through the moving groove (13) and is fixedly connected to a turning handle (12).

6. The automatic pressing device for carbide blanks according to claim 1, characterized in that, Limiting rods (14) are fixedly connected to the opposite sides of the two moving plates (5). The moving rod (7) includes sliding sleeves at both ends. One of the sliding sleeves is threadedly connected to the outer side of the screw rod (6), and the other sliding sleeve is slidably connected to the outer side of the limiting rod (14).

7. The automatic pressing device for cemented carbide blanks according to claim 1, wherein An installation frame (16) is fixedly connected to the outer side of the top of the main body (1). A second cylinder (17) is fixedly connected to the top end of the installation frame (16). The output end of the second cylinder (17) is fixedly connected to a pressing plate (18). The pressing plate (18) is located directly above the mold (15). Support feet are fixedly connected to the four surrounding sides of the bottom of the main body (1).

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