External buffer device of screw press

Abstract

The utility model discloses an external buffering device of a screw press, which relates to the technical field of buffering devices of presses and comprises a buffering component arranged at the top end of a sliding block mounted on the outer ring of a sliding column on two sides of a screw press body in a sliding manner. The bottom ends of the two supporting tables are fixedly adhered to polyurethane buffer pads, the two supporting tables are installed on the two sides of the sliding block respectively, the bottom faces of the polyurethane buffer pads are attached to the top face of the sliding block, through the buffer assembly, disassembly and replacement are facilitated, the tedious steps of disassembly and reinstallation of the sliding block during maintenance are reduced, the process is time-saving and labor-saving, and the maintenance efficiency is improved. Rigid collision between the sliding block and the screw press body is further avoided, the buffering effect is improved, and the problems that in the using and replacing process of a buffering device of a traditional screw press, the sliding block needs to be integrally disassembled to be replaced, the process is strenuous, and the buffering effect is poor due to the fact that single buffering rubber is used for protection are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of press buffer devices, in particular to an external buffer device for a screw press. Background Art

[0002] Electric screw press is a kind of equipment used in forging industry. It has the characteristics of great versatility, simple structure, easy adjustment and maintenance, no bottom dead point of the slider, convenient die design, high forging precision, etc. It is suitable for various processes such as precision forging, finishing, precision pressing, stamping, calibration, and equalization. When the electric screw press is running, in order to avoid damage to the parts of the screw press due to brake failure or inertial impact, a buffer device is needed to protect the slider.

[0003] The existing buffer device of the screw press is usually installed on the slider as a built-in structure when in use. Since the buffer device is a consumable part, it needs to be maintained and replaced after long-term use. The buffer device is installed inside the press beam or slider. The replacement process requires the slider to be disassembled as a whole before replacement. The process is relatively laborious and labor-intensive. In addition, it is protected by a single buffer rubber, and the buffering effect is poor. Utility Model Content

[0004] The main purpose of the utility model is to provide an external buffer device for a screw press, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An external buffer device for a screw press comprises a buffer assembly arranged at the top of a slide block slidably mounted on the outer ring of a slide column on both sides of a screw press body, wherein the buffer assembly comprises two support platforms;

[0007] The bottom ends of the two support platforms are fixedly adhered with polyurethane buffer pads, and the two support platforms are respectively installed on both sides of the slider, and the bottom surface of the polyurethane buffer pad fits with the top surface of the slider, wherein the top end of the support platform located on the inner side of the slider is fixedly connected with a fixed block, and a movable block is installed on one side of the fixed block by means of an installation bolt, and a polyurethane buffer block is arranged on the inner side of the movable block and the fixed block, and the inner sides of the polyurethane buffer block, the support platform and the polyurethane buffer pad fit with the outer ring of the sliding column, and the polyurethane buffer block, the support platform, the polyurethane buffer pad and the sliding column are slidably connected.

[0008] As a further solution of the utility model, a card block is fixedly connected to the center position of the inner side of the movable block and the fixed block, and a card slot matching the card block is opened on the side of the two polyurethane buffer blocks away from the sliding column, and the card block is stuck in the card slot of the polyurethane buffer block.

[0009] As a further solution of the utility model, the bottom surface of the polyurethane buffer block is fitted with the top surface of the support platform, the bottom surface of the movable block is fitted with the top surface of the support platform away from the fixed block, and the movable block is detachably connected to the fixed block by installing bolts.

[0010] As a further solution of the utility model, the lower end of the support platform is fixedly connected with movable rods at the front and rear ends, and mounting blocks are movably installed at the lower positions of the outer circles of the two movable rods, and two mounting bolts are arranged on both sides of the mounting blocks, and mounting threaded holes matching the two mounting bolts are opened on both sides of the slider, and the two mounting blocks are detachably installed on both sides of the slider through the two mounting bolts and the mounting threaded holes.

[0011] As a further solution of the utility model, a polyurethane buffer sleeve is provided around the outer ring of the movable rod, an external thread is provided at the lower position of the outer ring of the movable rod, and the movable rod is threadedly connected to a fixing nut through the external thread, and the fixing nut is located below the mounting block.

[0012] As a further solution of the utility model, a circular damper is installed at a central position on the top of the mounting block, and the top of the circular damper is connected to a collision head that matches the support platform through a piston rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides a buffer assembly to cooperate with the slider, and fixes the polyurethane buffer block through the movable block and the fixed block, so that it is easy to disassemble and replace, and the disassembly process does not require the entire slider to be removed from the screw press body, which is convenient for reducing the labor intensity of personnel and reducing the cumbersome steps of disassembling and reinstalling the slider during maintenance, and the process saves time and labor;

[0015] The polyurethane buffer sleeve, movable rod and polyurethane buffer pad are coordinated with the polyurethane buffer block to facilitate multiple buffering. When the pressure on the slider continues to increase, the polyurethane buffer block drives the support table to squeeze the annular damper downward, and the annular damper then absorbs energy and buffers, thereby further avoiding rigid collision between the slider and the screw press body, thereby improving the buffering effect. At the same time, the various components are not arranged in an integrated manner, which is convenient for separate disassembly and replacement, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an external buffer device for a screw press according to the utility model;

[0017] Figure 2 The utility model is an external buffer device of a screw press Figure 1 A magnified image of area A;

[0018] Figure 3 It is a structural schematic diagram of a buffer assembly in an external buffer device of a screw press according to the utility model;

[0019] Figure 4 It is a schematic diagram of the connection between the slider and the screw press body in the overall structure of an external buffer device of a screw press of the utility model;

[0020] Figure 5 The utility model is a cross-sectional view of the connection between a sliding block and a polyurethane buffer block in the overall structure of an external buffer device of a screw press.

[0021] In the figure: 1. Screw press body; 2. Slider; 3. Buffer assembly; 4. Support table; 5. Polyurethane buffer pad; 6. Fixed block; 7. Movable block; 8. Clamp block; 9. Polyurethane buffer block; 10. Mounting bolt 1; 11. Movable rod; 12. Mounting block; 13. Mounting bolt 2; 14. Polyurethane buffer sleeve; 15. Ring damper. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-5 As shown, an external buffer device for a screw press comprises a buffer assembly 3 arranged at the top of a slider 2 slidably mounted on the outer ring of a slide column on both sides of a screw press body 1, and the buffer assembly 3 comprises two support platforms 4;

[0024] The bottom ends of the two support platforms 4 are fixedly bonded with polyurethane buffer pads 5, and the two support platforms 4 are respectively installed on both sides of the slider 2, and the bottom surface of the polyurethane buffer pad 5 fits with the top surface of the slider 2, wherein the top end of the support platform 4 located on the inner side of the slider 2 is fixedly connected with a fixed block 6, and a movable block 7 is installed on one side of the fixed block 6 by means of an installation bolt 10, and a polyurethane buffer block 9 is arranged on the inner side of the movable block 7 and the fixed block 6, and the inner sides of the polyurethane buffer block 9, the support platform 4, and the polyurethane buffer pad 5 fit with the outer ring of the sliding column, and the polyurethane buffer block 9, the support platform 4, the polyurethane buffer pad 5 and the sliding column are slidably connected.

[0025] In this embodiment, a clamping block 8 is fixedly connected to the center position of the inner side of the movable block 7 and the fixed block 6, and a clamping groove matching the clamping block 8 is provided on the side of the two polyurethane buffer blocks 9 away from the sliding column, and the clamping block 8 is clamped in the clamping groove of the polyurethane buffer block 9. The setting of the clamping block 8 facilitates the fixation of the polyurethane buffer block 9 to prevent the polyurethane buffer block 9 from detaching when the movable block 7 is not disassembled.

[0026] In this embodiment, the bottom surface of the polyurethane buffer block 9 is in contact with the top surface of the support platform 4, the bottom surface of the movable block 7 is in contact with the top surface of the support platform 4 away from the fixed block 6, and the movable block 7 is detachably connected to the fixed block 6 by installing bolts 10. The movable block 7, the fixed block 6, and the polyurethane buffer block 9 are not arranged in an integrated manner, so they can be replaced separately after damage.

[0027] In this embodiment, the lower end of the support platform 4 is fixedly connected to a movable rod 11 at the front and rear ends, and a mounting block 12 is movably installed at the lower position of the outer circle of the two movable rods 11. Two mounting bolts 13 are arranged on both sides of the mounting block 12, and mounting threaded holes matching the two mounting bolts 13 are opened on both sides of the slider 2. The two mounting blocks 12 are detachably installed on both sides of the slider 2 through the two mounting bolts 13 and the mounting threaded holes. The support platform 4 is installed by the set mounting block 12, which is convenient for subsequent disassembly.

[0028] In this embodiment, a polyurethane buffer sleeve 14 is provided on the outer ring surrounding the movable rod 11, and an external thread is provided at the lower position of the outer ring of the movable rod 11. The movable rod 11 is threadedly connected to a fixing nut through the external thread, and the fixing nut is located below the mounting block 12. By unscrewing the fixing nut, the movable rod 11 can be pulled out from the mounting block 12 for easy disassembly. At the same time, the polyurethane buffer sleeve 14 is squeezed by the support platform 4 to cause it to deform for buffering.

[0029] In this embodiment, a circular damper 15 is installed at the center position of the top of the mounting block 12. The top of the circular damper 15 is connected to a collision head that matches the support platform 4 through a piston rod. After the bottom surface of the support platform 4 contacts the collision head of the circular damper 15, the circular damper 15 will be squeezed. The circular damper 15 plays a buffering and shock-absorbing role, further reducing the impact generated between the slider 2 and the screw press body 1.

[0030] It should be noted that the utility model is an external buffer device for a screw press. When in use, first, because the polyurethane buffer block 9 is fixed on the slider 2 through various components, when the slider 2 does not stop moving when it moves to the upper limit due to various unexpected reasons, the top surface of the polyurethane buffer block 9 fits with the bottom surface of the anti-collision beam of the screw press body 1. Then, as the slider 2 continues to rise, the polyurethane buffer block 9 is compressed. Since the polyurethane buffer block 9 has a stable elastic buffering performance, the impact force generated by the collision can be absorbed by the timely and effective deformation of the polyurethane buffer block 9, preventing the slider 2 from rigidly impacting the screw press body 1, thereby avoiding excessive impact force caused by the slider 2, reducing the probability of damage to the screw press body 1, and facilitating the protection of equipment and personal safety;

[0031] At the same time, during the impact process, when the impact force on the slider 2 increases, the polyurethane buffer block 9 squeezes the support platform 4, so that the support platform 4 is compressed downward. Because the bottom surface of the support platform 4 is provided with a polyurethane buffer pad 5, and the support platform 4 is slidably installed on the mounting block 12 through the movable rod 11, and the outer ring of the movable rod 11 is provided with a polyurethane buffer sleeve 14, the polyurethane buffer pad 5 and the polyurethane buffer sleeve 14 facilitate multiple buffering and improve the protection effect;

[0032] A circular damper 15 is provided at the top of the mounting block 12. After the bottom surface of the support platform 4 contacts the impacted head of the circular damper 15, the circular damper 15 is squeezed to further reduce the impact between the slider 2 and the screw press body 1, effectively reducing the probability of the screw press body 1 being damaged by impact.

[0033] When replacement and maintenance are required, the mounting bolt 10 can be unscrewed to contact the connection between the movable block 7 and the fixed block 6. Then the movable block 7 can be pulled in the direction away from the fixed block 6. After the connection between the movable block 7 and the fixed block 6 is released, the mounting bolt 2 13 can be screwed out to release the connection between the mounting block 12 and the slider 2. Then the support platform 4 can be removed from the slider 2 as a whole. After removal, the fixing nut at the bottom of the movable rod 11 can be unscrewed, so that the mounting block 12 can be removed from the bottom of the movable rod 11, and then the polyurethane buffer sleeve 14 can be removed. The disassembly process does not require the slider 2 to be removed from the screw press body 1, which is convenient for reducing labor intensity. At the same time, the various components are not arranged in an integrated manner, which is convenient for individual replacement and maintenance after damage, thereby reducing the cost of maintenance and replacement.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An external buffer device for a screw press, characterized in that: It comprises a buffer assembly (3) arranged at the top end of a slide block (2) slidably mounted on the outer rings of slide columns on both sides of a screw press body (1), and the buffer assembly (3) comprises two support platforms (4); The bottom ends of the two support platforms (4) are fixedly bonded with polyurethane buffer pads (5), and the two support platforms (4) are respectively installed on both sides of the slider (2), and the bottom surface of the polyurethane buffer pad (5) is in contact with the top surface of the slider (2), wherein the top end of the support platform (4) located on the inner side of the slider (2) is fixedly connected with a fixed block (6), and a movable block (7) is installed on one side of the fixed block (6) through a mounting bolt (10), and a polyurethane buffer block (9) is arranged on the inner side of the movable block (7) and the fixed block (6), and the inner sides of the polyurethane buffer block (9), the support platform (4), and the polyurethane buffer pad (5) are in contact with the outer ring of the sliding column, and the polyurethane buffer block (9), the support platform (4), the polyurethane buffer pad (5) and the sliding column are in sliding connection.

2. The external buffer device of a screw press according to claim 1, characterized in that: A clamping block (8) is fixedly connected to the movable block (7) and the fixed block (6) at the center of the inner side thereof; a clamping groove matching the clamping block (8) is provided on the side of the two polyurethane buffer blocks (9) away from the sliding column, and the clamping block (8) is clamped in the clamping groove of the polyurethane buffer block (9).

3. The external buffer device of a screw press according to claim 2, characterized in that: The bottom surface of the polyurethane buffer block (9) is in contact with the top surface of the support platform (4), the bottom surface of the movable block (7) is in contact with the top surface of the support platform (4) away from the fixed block (6), and the movable block (7) is detachably connected to the fixed block (6) via a mounting bolt (10).

4. The external buffer device of a screw press according to claim 1, characterized in that: The lower end of the support platform (4) is fixedly connected to a movable rod (11) at the front and rear ends, and a mounting block (12) is movably installed at the lower position of the outer ring of the two movable rods (11), and two mounting bolts (13) are arranged on both sides of the mounting block (12). The two sides of the slider (2) are provided with mounting threaded holes that match the two mounting bolts (13), and the two mounting blocks (12) are detachably installed on the two sides of the slider (2) through the two mounting bolts (13) and the mounting threaded holes.

5. The external buffer device of a screw press according to claim 4, characterized in that: A polyurethane buffer sleeve (14) is provided around the outer ring of the movable rod (11), an external thread is provided at the lower position of the outer ring of the movable rod (11), and the movable rod (11) is threadedly connected to a fixing nut via the external thread, and the fixing nut is located below the mounting block (12).

6. The external buffer device of a screw press according to claim 4, characterized in that: A circular damper (15) is installed at the center of the top end of the mounting block (12), and the top end of the circular damper (15) is connected to a collision head that matches the support platform (4) via a piston rod.

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