Screw press overload protection wedge block structure

Abstract

The utility model discloses a spiral press overload protection wedge structure relates to spiral press overload protection technical field, and it aims at solving the existing spiral press often is in the emergence pressure overload and stops, and the work piece lacks the timely yielding protection structure, and the initiative protection exists the problem of limitedness, and its technical scheme main points include base, the inside bottom end face of base is integrally connected with two limit sliding rails, the outside sliding sleeve of limit sliding rail has the wedge, the cross section of wedge is right angle trapezoidal shape, the symmetrical both end surfaces of base are provided with two mounting holes respectively, and the inside fixed mounting of mounting hole has the hydraulic oil cylinder, the telescopic end of hydraulic oil cylinder is fixedly connected with the side surface of wedge, and the symmetrical both sides of inside bottom end face of base are fixedly connected with two guide sliding bars respectively. Reach when emergence pressure overload, drive workpiece and carry out yielding protection operation, and the effect of initiative protection coefficient is high.

Description

Technical Field

[0001] This utility model relates to the field of overload protection technology for screw presses, and in particular to a wedge block structure for overload protection of screw presses. Background Technology

[0002] As a large-scale industrial product processing equipment, the screw press can achieve fast processing and forming of some workpieces, high product stability, and the processed finished workpieces can effectively meet complex usage requirements.

[0003] Existing screw presses often stop when pressure overload occurs, and the workpiece lacks a timely retraction protection structure, which limits their active protection capabilities. Utility Model Content

[0004] The purpose of this invention is to provide an overload protection wedge block structure for a screw press that can drive the workpiece to perform a retraction protection operation when pressure overload occurs, with a high active protection coefficient.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The overload protection wedge block structure for a screw press includes a base. Two limiting slide rails are integrally connected to the inner bottom surface of the base. A wedge block is slidably sleeved on the outside of the limiting slide rails. The cross-section of the wedge block is a right trapezoid. Two mounting holes are respectively provided on the symmetrical end faces of the base, and a hydraulic cylinder is fixedly installed inside the mounting holes. The telescopic end of the hydraulic cylinder is fixedly connected to the side surface of the wedge block.

[0007] By adopting the above technical solution, when an overload occurs, the hydraulic cylinder can drive the wedge block to move, thereby causing the workpiece to retract and achieving active protection operation.

[0008] Furthermore, two guide slide rods are fixedly connected to the symmetrical two sides of the bottom surface inside the base, and a movable support seat is slidably sleeved on the outside of the guide slide rods.

[0009] By adopting the above technical solution, the movable support seat can be effectively moved.

[0010] Furthermore, the lower surface of the movable support base is provided with sloping structures on both sides, and the inclined surface of the wedge block fits into the sloping structures.

[0011] By adopting the above technical solution, it is ensured that the movement of the wedge block can adjust the support position of the movable support seat.

[0012] Furthermore, multiple pressure detectors are fixedly installed on the upper surface of the movable support, and the force-bearing end of each pressure detector is fixedly connected to a mounting base.

[0013] By adopting the above technical solution, a pressure detector can be used to perform overload detection.

[0014] Furthermore, the pressure detector includes a detection seat, in which a piston rod is slidably installed. The interior of the detection seat is filled with hydraulic oil. A limit block is installed at the port of the detection seat. There are two limit blocks, and the two limit blocks are engaged and wrapped around the outside of the piston rod.

[0015] By adopting the above technical solution, pressure can be effectively converted.

[0016] Furthermore, a threaded mounting hole is provided on the side surface of the detection seat, and a pressure sensor is installed inside the threaded mounting hole, with the detection end of the pressure sensor placed in hydraulic oil.

[0017] By adopting the above technical solution, pressure detection operations can be effectively carried out.

[0018] In summary, the beneficial technical effects of this utility model are as follows:

[0019] This invention can be used as a support structure for workpieces during the operation of a screw press. During operation, a pressure detector monitors the stress on the mounting base and workpiece, and the pressure sensor on the detector transmits the data to an external controller. When the set value is reached, the controller controls the hydraulic cylinder to retract. This retraction causes a wedge block to slide on a limit rail. Because the slope of the movable support base is in contact with the inclined surface of the wedge block, the wedge block slides along the limit rail, changing its support position. The movable support base then slides along the guide rod, moving downwards along the Z-axis, thereby moving the workpiece downwards and protecting it from overload. The structure is stable and can be easily installed on the outside of existing equipment, making it highly practical. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a diagram of the internal structure of this utility model;

[0022] Figure 3 This utility model Figure 2 Enlarged view of point A.

[0023] In the diagram: 1. Base; 2. Hydraulic cylinder; 3. Wedge block; 4. Guide slide rod; 5. Movable support seat; 6. Pressure detector; 7. Mounting seat; 8. Detection seat; 9. Piston column; 10. Pressure sensor; 11. Limit block; 12. Limit slide rail. Detailed Implementation

[0024] The method of this utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 , Figure 2 The overload protection wedge block structure for a screw press includes a base 1. Two limiting slide rails 12 are integrally connected to the inner bottom surface of the base 1. A wedge block 3 is slidably sleeved on the outer side of the limiting slide rails 12. The cross-section of the wedge block 3 is a right-angled trapezoid. Two mounting holes are respectively provided on the symmetrical end faces of the base 1, and hydraulic cylinders 2 are fixedly installed inside the mounting holes. The telescopic ends of the hydraulic cylinders 2 are fixedly connected to the side surfaces of the wedge blocks 3. Two guide slide rods 4 are fixedly connected to the symmetrical two sides of the inner bottom surface of the base 1. A movable support seat 5 is slidably sleeved on the outer side of the guide slide rods 4. A ramp structure is provided on the symmetrical two sides of the lower surface of the movable support seat 5. The structure features a wedge block 3 whose inclined surface fits into the ramp structure. In case of overload, the controller controls the hydraulic cylinder 2 to retract. The retraction of the hydraulic cylinder 2 causes the wedge block 3 to slide on the limit slide rail 12. Since the ramp of the movable support seat 5 fits into the inclined surface of the wedge block 3, the wedge block 3 slides along the limit slide rail 12, changing the support position of the wedge block 3 on the movable support seat 5. At this time, the movable support seat 5 slides along the guide slide rod 4 and moves downward along the Z-axis, thereby moving the workpiece downward and protecting the overloaded workpiece. The structure is stable and can be easily installed on the outside of existing equipment, making it highly practical.

[0026] Reference Figure 2 , Figure 3Multiple pressure detectors 6 are fixedly mounted on the upper surface of the movable support 5. A mounting base 7 is fixedly connected to the force-bearing end of each pressure detector 6. Each pressure detector 6 includes a detection seat 8. A piston rod 9 is slidably mounted inside the cavity of the detection seat 8. The inside of the detection seat 8 is filled with hydraulic oil. Two limit blocks 11 are installed at the port of the detection seat 8, and these two limit blocks 11 are aligned and enclose the piston rod 9. A threaded mounting hole is provided on the side surface of the detection seat 8, and a pressure sensor is installed inside the threaded mounting hole. Device 10 (GDY1121) has a pressure sensor 10 whose detection end is placed in hydraulic oil. During operation, the pressure detector 6 can be used to detect the force on the mounting base 7 and the workpiece. At this time, the mounting base 7 transfers the pressure it bears to the piston rod 9, which extends into the interior of the detection seat 8. One end of the piston rod 9 pressurizes the hydraulic oil inside the detection seat 8. The high pressure hydraulic oil can be detected by the pressure sensor 10. The value detected by the pressure sensor 10 is transmitted to the external controller, which can effectively detect pressure overload.

[0027] Working principle: In use, the wedge-shaped protective structure is first installed at the designated position. Then, the pressure detector 6 is used to detect the stress on the mounting base 7 and the workpiece. At this time, the pressure on the mounting base 7 is transferred to the piston rod 9. The piston rod 9 extends into the interior of the detection base 8. At this time, one end of the piston rod 9 pressurizes the hydraulic oil inside the detection base 8. The high pressure hydraulic oil can be detected by the pressure sensor 10. The value detected by the pressure sensor 10 is transmitted to the external controller. When the set range value inside the controller is reached, the controller controls the hydraulic cylinder 2 to contract. At this time, the contraction of the hydraulic cylinder 2 can drive the wedge block 3 to slide on the limit slide rail 12. Since the slope of the movable support base 5 is in contact with the inclined surface of the wedge block 3, the wedge block 3 slides along the limit slide rail 12. The support position of the wedge block 3 on the movable support base 5 changes. At this time, the movable support base 5 slides along the guide slide rod 4. At this time, the movable support base 5 moves downward along the Z-axis, thereby driving the workpiece to move downward, protecting the overloaded workpiece.

[0028] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A wedge block structure for overload protection of a screw press, comprising a base (1), characterized in that: Two limiting slide rails (12) are integrally connected to the inner bottom surface of the base (1). A wedge block (3) is slidably sleeved on the outside of the limiting slide rail (12). The cross-section of the wedge block (3) is a right trapezoid. Two mounting holes are respectively provided on the symmetrical end faces of the base (1), and a hydraulic cylinder (2) is fixedly installed inside the mounting hole. The telescopic end of the hydraulic cylinder (2) is fixedly connected to the side surface of the wedge block (3).

2. The overload protection wedge block structure for a screw press according to claim 1, characterized in that: Two guide slide rods (4) are fixedly connected to the two symmetrical sides of the bottom surface inside the base (1), and a movable support seat (5) is slidably sleeved on the outside of the guide slide rods (4).

3. The overload protection wedge block structure for a screw press according to claim 2, characterized in that: The lower surface of the movable support (5) is provided with sloping structures on both sides, and the inclined surface of the wedge block (3) fits into the sloping structure.

4. The overload protection wedge block structure for a screw press according to claim 2, characterized in that: Multiple pressure detectors (6) are fixedly installed on the upper surface of the movable support (5), and the force-bearing end of the pressure detector (6) is fixedly connected to the mounting base (7).

5. The overload protection wedge block structure for a screw press according to claim 4, characterized in that: The pressure detector (6) includes a detection seat (8), in which a piston column (9) is slidably installed. The inside of the detection seat (8) is filled with hydraulic oil. A limit block (11) is installed at the port of the detection seat (8). There are two limit blocks (11), and the two limit blocks (11) are fitted together and wrapped around the outside of the piston column (9).

6. The overload protection wedge block structure for a screw press according to claim 5, characterized in that: The side surface of the detection seat (8) is provided with a threaded mounting hole, and a pressure sensor (10) is installed inside the threaded mounting hole. The detection end of the pressure sensor (10) is placed in hydraulic oil.

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