Belt shearing sampling machine

Abstract

The utility model relates to a belt shearing sampling machine and belongs to experimental equipment. According to the technical scheme, the device comprises a pair of carrier rollers, a downward pressing positioning die and a downward pressing cutting knife. The two ends of the carrier roller are arranged on the machine frame through bearing structures, two parallel arc grooves are formed in the lower side face of the lower positioning die, the diameter of the arc grooves is matched with the diameter of the carrier roller, a groove hole is formed in the middle of the lower positioning die, and a pressing cutter is arranged at the position of the groove hole. The upper portion of the pressing-down positioning die is connected with a positioning lifting mechanism, the upper portion of the pressing-down cutter is connected with a cutting lifting mechanism, and a belt to be cut penetrates through the position between the carrier roller and the lower positioning die and is exposed out of the slotted hole. The device is driven by the carrier rollers, the belt is pressed and fixed by the two hydraulic cylinders when reaching a standard sample preparation position, so that the belt is stressed in a large area, the cutting knife main hydraulic cylinder cuts from a cutting groove in the middle of the belt pressing and fixing seat, the limiting device is mounted, and the belt automatically returns after being cut off.

Description

Technical Field

[0001] The utility model relates to a belt shearing sample making machine, belonging to experimental equipment. Background Art

[0002] At present, belt testing samples are cut manually with a sealing knife. Since a belt requires multiple types of test samples, including roller friction test, tension, adhesion, resistance, flame retardant and other items, the samples that need to be prepared are large, small, long, and

[0003] For dozens of wide pieces, two people are required to work together manually, one person cuts and the other helps press the cut to open the inner layer one by one, which is time-consuming and laborious.

[0004] Sometimes, the sealing knife may scratch during cutting, and the blade may injure people. The wrist may be injured after long working hours. The work efficiency is low. When it is hot, the belt is softer and the sample preparation is easier. When it is cold, it is harder and the sample preparation is more difficult. Since the sample prepared by manual cutting is not very vertical and meets the standard specifications of the sample, it needs to be clamped to the vise again for cutting. Since the belt is soft and elastic, the cutting surface is uneven or large or small, and the cutting surface is not vertical. There are more nylon threads in the belt. Extrusion cutting will change the force point of the nylon thread. The two belts cut will bring out multiple nylon threads of each other, so the test data will be seriously biased.

[0005] The sample is prepared by a cutting machine. The samples prepared by this method are relatively regular, but the disadvantages are also obvious. Since the cutting machine is a high-speed rotating equipment, the friction with the belt will generate high temperature and produce very thick smoke. First of all, the thick smoke will cause harm to the human body, and secondly, it will pollute the air. Summary of the invention

[0006] The invention provides a belt cutting and prototyping machine, which solves the inefficiency and safety problems of manual belt cutting.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: the utility model belt shearing sample making machine includes a pair of rollers, a downward pressure positioning die and a downward pressure cutting knife; the two ends of the rollers are arranged on the frame through a bearing structure, and the lower side surface of the downward pressure positioning die is provided with two parallel arc grooves, the diameter of the arc groove matches the diameter of the roller, and a slot hole is opened in the middle of the downward pressure positioning die, and a downward pressure cutting knife is arranged at the position of the slot hole; the upper part of the downward pressure positioning die is connected to the positioning lifting mechanism, and the upper part of the downward pressure cutting knife is connected to the cutting lifting structure, and the belt to be cut passes through between the rollers and the downward pressure positioning die, and leaks out at the position of the slot hole.

[0008] According to the belt shearing prototype machine, the upper parts of both ends of the downward-pressing positioning die are respectively provided with balancing pressure blocks, the balancing pressure blocks are connected to the lower moving ends of the two positioning lifting mechanisms, and the connection position is in the middle of the two arc grooves.

[0009] According to the belt shearing prototype machine, the distance between the two arc grooves of the downward pressing positioning mold is greater than the width of the slot hole, the length direction of the slot hole is parallel to the two arc grooves, and the length of the slot hole and the length of the downward pressing cutting knife are longer than the width of the belt to be cut.

[0010] According to the belt shearing and prototyping machine, the frame is a frame structure, including a base, four corner columns and a top frame. A crossbeam is provided in the middle of the top frame, a base-mounted cutting and lifting structure is provided at the lower part of the balance beam, and base-mounted positioning and lifting mechanisms are provided on both sides of the frame structure.

[0011] According to the belt shearing and prototyping machine, it also includes a cutting guide structure, including a guide frame, a guide block, and a guide arm. The protruding end of the cutting lifting structure is connected to the guide arm, and the guide block is arranged at the end of the guide arm. The guide frame is provided with an inwardly recessed convex slide groove, and the guide block is located in the slide groove.

[0012] According to the belt shearing prototype machine, the positioning lifting mechanism is a positioning hydraulic rigid cylinder, and the cutting lifting structure is a cutting hydraulic cylinder.

[0013] According to the belt shearing prototype machine, the pressure cutter is fixed on the tool holder, and the tool holder includes a handle fixed to the end of the piston rod of the cutting hydraulic cylinder and equalizing rods on both sides of the handle. The equalizing rods connect the end of the downward pressure cutter and the handle, and are arranged obliquely. The two equalizing rods are symmetrical, and the handle is cylindrical, which is inserted into the end of the piston rod of the cutting hydraulic cylinder and fixed.

[0014] According to the belt shearing sample making machine, the bearing structures at both ends of the roller are arranged on the base, and the position of the base leaves space for the roller.

[0015] This device is driven by rollers and reaches the required standard sample preparation position. Two hydraulic cylinders press and fix the belt to make the belt bear force over a large area. The main hydraulic cylinder of the cutting knife cuts from the cutting groove in the middle of the belt pressing and fixing seat. A limit device is installed, and the belt automatically returns to its original position after being cut.

[0016] The device has a high degree of automation and is suitable for long-term work. It can reduce human injuries, increase the safety of workers, reduce the high-intensity labor caused by manual cutting, and improve cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a side structural view of the present invention.

[0018] Figure 2This is the front side structure of the present invention.

[0019] Figure 3 yes Figure 1 Screenshot of

[0020] Figure 4 yes Figure 2 A cross-sectional view of

[0021] Figure 5 It is a schematic diagram of the overall structure of the utility model.

[0022] Reference numerals:

[0023] 1 roller, 2 downward pressure positioning die, 21 arc groove, 22 slot hole, 23 balancing pressure block, 3 downward pressure cutting knife, 31 knife handle, 32 equalizing rod, 4 frame, 41 column, 42 top frame, 43 beam, 44 base, 5 positioning lifting mechanism, 6 cutting lifting structure, 7 cutting guide structure, 71 guide frame, 72 guide block, 73, guide arm, 8 belt. DETAILED DESCRIPTION

[0024] The specific structure of the utility model is described below:

[0025] The utility model belt shearing sample making machine comprises a pair of rollers 1, a downward pressing positioning die 2, a downward pressing cutting knife 3 and a frame.

[0026] The supporting roller cooperates with the downward positioning die 2 to fix the belt, and the downward cutting knife 3 cuts the belt.

[0027] The rollers 1 are a pair, both ends of which are arranged on the frame 4 through bearing structures, and the two rollers are parallel.

[0028] The lower side of the pressing positioning die of the device is provided with two parallel arc grooves 21, the diameter of the arc groove 21 matches the diameter of the roller 1, and the spacing between the two arc grooves is the same as the spacing between the two rollers. The belt is squeezed by the arc groove 21 and the roller at the same time to achieve belt cutting.

[0029] Fixation during cutting.

[0030] A slot hole 22 is provided in the middle of the downward pressing positioning die, and a downward pressing cutting knife 3 is arranged at the position of the slot hole 22. The downward pressing cutting knife passes through the slot hole to cut and sample the fixed belt.

[0031] The upper part of the downward positioning die 2 of the device is connected to the positioning lifting mechanism, and the upper part of the downward cutting knife 3 is connected to the cutting lifting structure 6. The belt 8 to be cut passes between the roller 1 and the downward positioning die, and leaks out at the slot 22.

[0032] The upper parts of both ends of the downward positioning die of the device are respectively provided with balancing pressing blocks 23 , which are connected to the lower moving ends of the two positioning lifting mechanisms, and the connection position is located in the middle position of the two arc grooves 21 .

[0033] The distance between the two arc grooves 21 of the downward positioning die of the device is greater than the width of the slot hole 22, the length direction of the slot hole 22 is parallel to the two arc grooves 21, and the length of the slot hole 22 and the length of the downward cutting knife 3 are longer than the width of the belt 8 to be cut.

[0034] The frame 4 of the device is a frame structure made of profiles, specifically including a base 44, four corner columns 41 and a top frame 42. A crossbeam 43 is provided in the middle of the top frame 42, a base 44 is provided at the lower part of the balance beam to install the cutting lifting structure 6, and bases 44 are provided on both sides of the frame structure to install the positioning lifting mechanism.

[0035] In order to control the stable lifting of the downward pressure cutting knife, the device is also provided with a cutting guide structure 7, including a guide frame 71, a guide block 72, and a guide arm 73. The protruding end of the cutting lifting structure 6 is connected to the guide arm 73, and the guide block is arranged at the end of the guide arm 73. The guide frame 71 is provided with an inwardly sunken convex-shaped slide groove, and the guide block is located in the slide groove. When the downward pressure cutting knife is lifted or lowered, the guide arm and the guide block are driven to lift or lower along the slide groove of the guide frame to prevent the downward pressure cutting knife from shaking around.

[0036] The positioning lifting mechanism in this device is a positioning hydraulic rigid cylinder, and the cutting lifting structure 6 is a cutting hydraulic cylinder.

[0037] Specifically, the downward pressure cutting knife is fixed on the knife holder, and the knife holder includes a knife handle 31 fixed to the end of the piston rod of the cutting hydraulic cylinder and force equalizing rods 32 on both sides of the knife handle 31. The force equalizing rod 32 connects the end of the downward pressure cutting knife and the knife handle 31, and is arranged obliquely. The two force equalizing rods 32 are symmetrical. The knife handle 31 is cylindrical and is inserted into the end of the piston rod of the cutting hydraulic cylinder and fixed.

[0038] The bearing structures at both ends of the roller 1 of the device are arranged on the base 44, and the base 44 leaves space for the roller 1.

[0039] The steps of using this device are as follows: guide the belt to be cut between the roller and the pressing die, and reach the required standard sample preparation position through the roller transmission. The hydraulic cylinders of the two positioning lifting mechanisms press and fix the belt, so that the belt is subjected to force over a large area. The cutting lifting structure 6 drives the pressing cutter to cut from the cutting groove in the middle of the belt pressing fixing seat.

Claims

1. A belt cutting prototype machine, characterized in that: It comprises a pair of rollers (1), a downward pressing positioning die (2) and a downward pressing cutting knife (3); The two ends of the roller (1) are arranged on the frame (4) via a bearing structure; the lower side of the downward pressing positioning die is provided with two parallel arc grooves (21); the diameter of the arc groove (21) matches the diameter of the roller (1); a slot hole (22) is opened in the middle of the downward pressing positioning die; a downward pressing cutting knife (3) is arranged at the position of the slot hole (22); The upper part of the downward pressing positioning die (2) is connected to the positioning lifting mechanism, and the upper part of the downward pressing cutting knife (3) is connected to the cutting lifting structure (6). The belt (8) to be cut passes between the supporting roller (1) and the downward pressing positioning die, and leaks out at the position of the slot hole (22).

2. The belt cutting and prototyping machine according to claim 1, characterized in that: The upper parts of both ends of the downward-pressing positioning die are respectively provided with balancing pressure blocks (23), and the balancing pressure blocks (23) are connected to the lower moving ends of the two positioning lifting mechanisms, and the connection position is located in the middle position of the two circular arc grooves (21).

3. The belt cutting and prototyping machine according to claim 2, characterized in that: The distance between the two arc grooves (21) of the downward pressure positioning die is greater than the width of the slot hole (22), the length direction of the slot hole (22) is parallel to the two arc grooves (21), and the length of the slot hole (22) and the length of the downward pressure cutting knife (3) are longer than the width of the belt (8) to be cut.

4. The belt cutting and prototyping machine according to claim 1, characterized in that: The frame (4) is a frame structure, comprising a base (44), four corner columns (41) and a top frame (42); a crossbeam (43) is provided in the middle of the top frame (42); a base (44) is provided at the lower part of the balance beam to install the cutting lifting structure (6); and bases (44) are provided on both sides of the frame structure to install the positioning lifting mechanism.

5. The belt cutting and prototyping machine according to claim 4, characterized in that: It also comprises a cutting guide structure (7), comprising a guide frame (71), a guide block (72), and a guide arm (73); the protruding end of the cutting lifting structure (6) is connected to the guide arm (73); the guide block is arranged at the end of the guide arm (73); the guide frame (71) is provided with an inwardly recessed convex-shaped slide groove, and the guide block is located in the slide groove.

6. The belt cutting and prototyping machine according to claim 4, characterized in that: The positioning lifting mechanism is a positioning hydraulic rigid cylinder, and the cutting lifting structure (6) is a cutting hydraulic cylinder.

7. The belt cutting and prototyping machine according to claim 6, characterized in that: The downward pressure cutting knife is fixed on the knife holder, and the knife holder comprises a knife handle (31) fixed to the end of the piston rod of the cutting hydraulic cylinder and force equalizing rods (32) on both sides of the knife handle (31). The force equalizing rods (32) connect the end of the downward pressure cutting knife and the knife handle (31) and are arranged in an inclined manner. The two force equalizing rods (32) are symmetrical. The knife handle (31) is cylindrical and is inserted into the end of the piston rod of the cutting hydraulic cylinder and fixed.

8. The belt cutting and prototyping machine according to claim 4, characterized in that: The bearing structures at both ends of the roller (1) are arranged on a base (44), and space for the roller (1) is reserved at the base (44).

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