LNG nodule shear test workpiece degumming device

Abstract

The utility model provides a kind of LNG bubble piece shearing test workpiece's glue removing device, including bottom plate, driving mechanism, cutter and limiting assembly are provided on the bottom plate, the cutter is set in the movement output end of driving mechanism, the driving mechanism is used to drive cutter to reciprocate, the limiting assembly forms the glue removing station of limiting shearing test workpiece movement, shearing test workpiece is placed in the glue removing station, the glue removing station is located directly below the movement path of cutter, the movement path of the cutter tip is the plane parallel to the plane where glue removing station is located;According to the structure characteristics and cleaning requirement of shearing test workpiece are fixed, ensure that there is no deviation, no shaking in cleaning process;By simple electrical control driving cutter reciprocation, the residual bubble piece on shearing test workpiece is cleaned, cleaning speed is fast, effectively guaranteeing fixture rapid turnover reuse;Simple structure, easy to maintain;High degree of automation, effectively save time and labor cost.

Description

Technical Field

[0001] This utility model relates to the field of foam product manufacturing technology, specifically to a degumming device for LNG foam block shear test workpieces. Background Technology

[0002] On the LNG foaming production line, the produced foam blocks need to undergo a series of mechanical property tests, among which shear force testing is a crucial step. During shear force testing, the foam block is cut into regular rectangular specimens. A pair of dedicated shear test workpieces are taken, and the two workpieces are combined to form a fixture for shear force testing. The foam block is then attached between the upper and lower workpieces. Subsequently, a shear force is applied to the specimen using a UTM (a device for testing the tensile mechanical properties of products) until the foam block breaks.

[0003] After testing, some broken bubble fragments often remain on the fixture surface. Because these fragments are firmly attached to the shear test workpiece, cleaning them is extremely time-consuming and labor-intensive. Current cleaning methods rely primarily on manual labor, with operators using knives, scrapers, and other tools to painstakingly remove the remaining fragments. This method is ineffective, as the fragments are often firmly attached and difficult to remove completely with ordinary tools, often leaving scratches or adhesive residue on the workpiece surface, potentially affecting the accuracy of subsequent tests. Furthermore, manual scraping is slow; cleaning 20 shear test workpieces can take half a day, resulting in high labor intensity and wasted human resources. Moreover, as LNG foaming production scales up and the number of shear test workpieces increases, the required cleaning manpower will also increase accordingly, driving up labor costs and contradicting the automation and efficiency goals of modern production lines.

[0004] Therefore, developing a high-efficiency adhesive removal device that does not damage the shear test workpiece has become an urgent need to improve the testing efficiency and automation level of the production line. Summary of the Invention

[0005] The purpose of this invention is to provide a degumming device for LNG bubble block shear test workpieces to solve the above-mentioned problems.

[0006] The technical solution adopted in this utility model is as follows: A degumming device for LNG bubble block shearing test workpieces includes a base plate, on which a drive mechanism, a cutter, and a limiting assembly are disposed. The cutter is disposed at the motion output end of the drive mechanism, which drives the cutter to reciprocate. The limiting assembly forms a degumming station that restricts the movement of the shearing test workpiece. The shearing test workpiece is placed in the degumming station, which is located directly below the movement path of the cutter. The movement path of the cutter tip is a plane parallel to the plane of the degumming station.

[0007] As a further improvement of the present invention, the limiting component includes a limiting frame, which cooperates with the base plate to form a limiting mechanism for movement parallel to the base plate and a limiting mechanism for movement toward the base plate.

[0008] As a further improvement of this utility model, a pair of recesses are provided on the limiting frame, and the recesses are provided on the two long frame strips of the limiting frame.

[0009] As a further improvement of the present invention, the limiting component further includes a pressure plate mechanism disposed on the base plate, the pressure plate mechanism being used to limit the movement in the opposite direction away from the base plate.

[0010] As a further improvement of the present invention, the pressure plate mechanism includes a screw and a pressure plate. The screw passes through the pressure plate and is fixed on the base plate. The pressure plate can rotate around the screw. During the rotation, the pressure plate can rotate into the de-adhesion station to restrict the position of the shear test workpiece or rotate away from the de-adhesion station to release the shear test workpiece.

[0011] As a further improvement of the present invention, the pressure plate includes a rotating part and a pressing part, the rotating part and the pressing part are connected to form an L-shape, the end of the rotating part away from the pressing part is rotatably connected to a screw, and the pressing part can extend into the de-adhesion station to restrict the position of the shear test workpiece or leave the de-adhesion station to release the shear test workpiece.

[0012] As a further improvement of this utility model, a linear groove is provided on the surface of the shear test workpiece away from the base plate, the clamping part can be inserted into the linear groove, and a clearance slope is provided at the end of the clamping part away from the rotating part.

[0013] As a further improvement of the present invention, the driving mechanism includes a control valve and a cylinder, and several air pipes are connected between the cylinder and the control valve. The control valve is used to control the air supply and exhaust of the cylinder, and the cutter is located at the end of the cylinder extension rod located outside the cylinder.

[0014] As a further improvement of this utility model, a connecting plate is provided on the cylinder telescopic rod, and an mounting plate is connected to the connecting plate. The cutter is fixed on the mounting plate, and two slide rails are provided on the base plate. The extension direction of the slide rails is parallel to the movement trajectory of the cutter. A slider that can slide on the slide rail is provided on the slide rail, and both sliders are fixed on the mounting plate.

[0015] As a further improvement of this utility model, a plurality of waist holes are provided on the cutter, and fasteners fix the cutter to the mounting plate through the waist holes. The length direction of the waist holes is parallel to the plane of the base plate, and the length direction of the waist holes is perpendicular to the movement direction of the cutter.

[0016] The beneficial effects of this utility model are as follows: The above structure limits and fixes the workpiece according to its structural characteristics and cleaning requirements, ensuring that the workpiece does not deviate or shake during the cleaning process. The cutter is driven to reciprocate through simple electrical control to clean the residual bubbles on the workpiece. The cleaning speed is fast, which effectively ensures the quick turnover and reuse of the fixture. The structure is simple and easy to maintain. The high degree of automation effectively saves time and labor costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a pair of shear test workpiece clamping bubble blocks; Figure 2 This is a schematic diagram of the adhesive removal device on which the shear test workpiece is placed; Figure 3 yes Figure 1 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the adhesive removal device without placing the shear test workpiece.

[0018] Wherein: 101-Shear test workpiece, 102-Linear groove, 103-Bubble block, 2-Base plate, 301-Control valve, 302-Cylinder, 303-Air pipe, 304-Connecting plate, 4-Cutter, 5-Limiting frame, 501-Sunk step, 502-Recess, 503-De-adhesion station, 601-Screw, 602-Pressure plate, 6021-Rotating part, 6022-Clamping part, 6023-Leaving slope, 603-Shim, 701-Slide rail, 702-Slider, 8-Mounting plate, 9-Handle. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0020] If the description of this utility model involves directions (e.g., up, down, left, right, front, back, outside, inside, etc.), then the directions involved need to be defined. For example, "To clearly express the position and direction described in this utility model, the operator of the instrument is used as a reference, the end closer to the operator is the proximal end, and the end farther from the operator is the distal end." Or, the paper can be used as a reference. Of course, if the positional relationship between the two is defined by mutual reference in the subsequent description, then this definition is not required.

[0021] A degumming device for LNG bubble block shear test workpieces, such as Figure 1 As shown, the shear test workpiece 101 is a flat clamp. A pair of shear test workpieces 101 are used to clamp a bubble block 103. After the test, bubble blocks 103 remain on the clamping surface of the shear test workpieces 101, as shown. Figures 2-4 As shown, the adhesive removal device includes a base plate 2, on which a drive mechanism, a cutter 4, and a limiting assembly are arranged. The cutter 4 is located at the motion output end of the drive mechanism, which drives the cutter 4 to reciprocate. The limiting assembly forms an adhesive removal station 503 that restricts the movement of the shear test workpiece 101. The adhesive removal station 503 is located directly below the movement path of the cutter 4. The tip of the cutter 4 is a straight line parallel to the plane of the adhesive removal station 503, and the movement path of the tip of the cutter 4 is a plane parallel to the plane of the adhesive removal station 503. The shear test workpiece 101 is placed in the adhesive removal station 503. The blade tip of the cutter 4 approaches the shear test workpiece 101 and cuts the residual bubble block 103 during the reciprocating movement. Since the bubble block 103 is sticky, during the removal process, the removed bubble block 103 will exert a pulling force on the unremoved bubble block 103, which may cause the shear test workpiece 101 to move. The setting of the limiting component prevents the shear test workpiece 101 from moving during the adhesive removal process.

[0022] As an embodiment of this utility model, the limiting component includes a limiting frame 5. The limiting frame 5 is a hollow frame structure formed by several frame strips connected end to end. The internal space of the limiting frame 5 is matched with the shear test workpiece 101. Before the glue removal begins, the shear test workpiece 101 is placed in the limiting frame 5. The limiting frame 5 and the base plate 2 cooperate to limit the movement in the direction parallel to the base plate 2 and the movement in the direction closer to the base plate 2. Thus, the shear test workpiece 101 set in the limiting frame 5 cannot move in the direction parallel to the base plate 2, nor can it move in the direction closer to the base plate 2.

[0023] Specifically, based on the existing structure of the shearing test workpiece 101, which is mostly rectangular, the limiting frame 5 is a rectangular frame, which forms a long side and a narrow side. As one embodiment of this utility model, such as... Figure 2 As shown, a pair of recesses 502 are provided on the limiting frame 5. The recesses 502 are located on the two long frame strips of the limiting frame 5, so that the operator can use the recesses 502 to pick up and place the shearing test workpiece 101 with their fingers. Furthermore, the recesses 502 are arc-shaped recesses 502.

[0024] As one embodiment of this utility model, such as Figure 3 As shown, the limiting component also includes a pressure plate mechanism disposed on the base plate 2. The pressure plate mechanism is used to limit the movement away from the base plate 2. The shear test workpiece 101 restricted by the pressure plate mechanism cannot move away from the base plate 2, thus preventing the cut-off bubble block 103 from exerting a pulling force on the uncut bubble block 103 during the degumming process, causing the shear test workpiece 101 to detach from the limiting frame 5.

[0025] The limiting frame 5, the base plate 2, and the pressure plate mechanism work together to form the adhesive removal station 503, which restricts the six degrees of freedom of the shear test workpiece 101 and ensures that the shear test workpiece 101 will not move during the adhesive removal process.

[0026] In one embodiment of this utility model, the pressure plate mechanism includes a screw 601 and a pressure plate 602. A mounting hole is provided on the pressure plate 602. The shank of the screw 601 passes through the mounting hole and is fixed to the base plate 2. The pressure plate 602 can rotate around the screw 601. During rotation, the pressure plate 602 can rotate into the adhesive removal station 503 to restrict the position of the shear test workpiece 101, or rotate away from the adhesive removal station 503 to release the shear test workpiece 101. Furthermore, the side of the pressure plate 602 closest to the base plate 2 can abut against the limiting frame 5 to limit the distance between the pressure plate 602 and the base plate 2, or a limiting component can be added to raise the pressure plate 602. A washer 603 is provided between the side of the pressure plate 602 furthest from the base plate 2 and the head of the screw 601 to avoid hard contact between the pressure plate 602 and the head of the screw 601, thus improving service life. Before placing the shear test workpiece 101, rotate the pressure plate 602 to position it outside the glue removal station 503. After placing the shear test workpiece 101, rotate the pressure plate 602 to press down on the shear test workpiece 101.

[0027] Furthermore, the pressure plate 602 includes a rotating part 6021 and a pressing part 6022. The rotating part 6021 and the pressing part 6022 are connected to form an L-shape. The end of the rotating part 6021 away from the pressing part 6022 is rotatably connected to the screw 601. The pressing part 6022 can extend into the adhesive removal station 503 to restrict the position of the shear test workpiece 101 or leave the adhesive removal station 503 to release the shear test workpiece 101. The L-shaped pressure plate 602 expands the rotation and pressing range while avoiding unnecessary parts extending into the limiting frame 5, and also saves materials.

[0028] Specifically, regarding the aforementioned embodiment of the rectangular shear test workpiece 101, as follows: Figure 3 As shown, a linear groove 102 is often provided on the surface (clamping surface) of the shear test workpiece 101 away from the base plate 2. This linear groove 102 is used to cooperate with the UTM. Therefore, a recessed step 501 can be provided at one end of the long frame of the limiting frame 5. The pressure plate 602 is placed on the recessed step 501, and the rotation path of the L-shaped pressure plate 602 is set to partially coincide with the linear groove 102. Thus, when the L-shaped pressure plate 602 is rotated, the pressing part 6022 can be inserted into the linear groove 102. Furthermore, a clearance slope 6023 is provided at the end of the pressing part 6022 away from the rotating part 6021 to facilitate the pressing part 6022 being inserted into the linear groove 102 and avoid collision. For shear test workpiece 101 without linear groove 102, it is only necessary to increase the distance between the pressure plate 602 and the base plate 2 so that the pressure plate 602 presses down on the side of the shear test workpiece 101 away from the base plate 2.

[0029] As one embodiment of this utility model, such as Figure 2 As shown, the drive mechanism includes a control valve 301 and a cylinder 302. Several air pipes 303 are connected between the cylinder 302 and the control valve 301. The control valve 301 controls the air supply and exhaust of the cylinder 302. The cutter 4 is located at the end of the cylinder 302's extension rod outside the cylinder 302, which is the movement output end of the cylinder 302. Specifically, the control valve 301 is a two-position five-way pneumatic control valve 301. By opening and closing the control valve 301, the cylinder 302 either supplies air to drive the cutter 4 to move closer to the adhesive removal station 503 (cutting the test workpiece 101) or exhausts air to drive the cutter 4 away from the adhesive removal station 503 (cutting the test workpiece 101).

[0030] As one embodiment of this utility model, such as Figure 3As shown, a guide mechanism is also provided on the base plate 2. The guide mechanism is used to guide the reciprocating motion of the cutter 4. The guide mechanism includes two slide rails 701 arranged parallel to each other on the base plate 2. The extension direction of the slide rails 701 is parallel to the movement trajectory of the cutter 4. A slider 702 that can slide on the slide rails 701 is provided. A connecting plate 304 is provided on the telescopic rod of the cylinder 302. A mounting plate 8 is connected to the connecting plate 304. The cutter 4 is fixed on the mounting plate 8. The cutter 4 is V-shaped, with one end fixed on the mounting plate 8 and the other end extending from the mounting plate 8 toward the base plate 2. Both sliders 702 are fixed on the mounting plate 8. When the cylinder 302 drives the cutter 4 to move, the mounting plate 8 guides the movement of the cutter 4 through the sliders 702 that move synchronously on the two slide rails 701.

[0031] Furthermore, the cutter 4 is provided with several waist holes (not shown in the attached drawings). Fasteners fix the cutter 4 to the mounting plate 8 through these waist holes. The length direction of the waist holes is perpendicular to the movement direction of the cutter 4 and parallel to the plane of the base plate 2, so as to facilitate the centering adjustment of the cutter 4 before degumming. In addition, the distance between the tip of the cutter 4 and the surface of the shearing test workpiece 101 placed after the degumming station 503 away from the base plate 2 in the direction perpendicular to the base plate 2 can be set to 1 mm.

[0032] As an embodiment of this utility model, at least one pair of handles 9 are provided on the base plate 2. The two handles 9 are respectively located at both ends of the base plate 2. Thus, the operator can transfer the adhesive removal device through the handles 9, which saves more effort and avoids damage to the structure on the base plate 2.

[0033] The working principle of this utility model is as follows: Adjust the fasteners on the mounting plate 8 and the cutter 4, and center the cutter 4; Rotate the pressure plate 602 outside the limiting frame 5 to avoid blocking the shear test workpiece 101. Place the shear test workpiece 101 with residual bubble 103 into the limiting frame 5. Rotate the pressure plate 602 to press down the shear test workpiece 101, thereby completely fixing the shear test workpiece 101. When the control valve 301 is energized, the telescopic rod of the cylinder 302 drives the cutter 4 to move towards the shearing test workpiece 101. The cutter 4 removes the bubble 103 on the shearing test workpiece 101. When the telescopic rod of the cylinder 302 extends to its limit position, the control valve 301 is disconnected. The telescopic rod of the cylinder 302 retracts, driving the cutter 4 to move away from the shearing test workpiece 101, thus completing the cleaning. If one reciprocating cut by the cutter 4 fails to completely remove the bubble 103 on the shearing test workpiece 101, multiple reciprocating cuts can be performed until the bubble 103 is completely removed.

[0034] The LNG bubble block shearing test workpiece removal device provided by this utility model, according to the structural characteristics and cleaning requirements of the shearing test workpiece 101, sets a limiting component to limit and fix the shearing test workpiece 101, ensuring that the shearing test workpiece 101 does not deviate or shake during the cleaning process; through simple electrical control to drive the cutter 4 to reciprocate, the residual bubble block 103 on the shearing test workpiece 101 is cleaned. The cleaning speed is fast, effectively ensuring the rapid turnover and reuse of the fixture; the structure is simple and easy to maintain; the degree of automation is high, effectively saving time and labor costs.

[0035] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0036] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementation methods or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A degumming device for LNG bubble block shear test workpieces, characterized in that: Includes a base plate (2), on which a drive mechanism, a cutter (4) and a limiting component are provided. The cutter (4) is located at the motion output end of the drive mechanism. The drive mechanism is used to drive the cutter (4) to reciprocate. The limiting component forms a de-adhesion station (503) that restricts the movement of the shear test workpiece (101). The shear test workpiece (101) is placed in the de-adhesion station (503). The de-adhesion station (503) is located directly below the movement path of the cutter (4). The movement path of the blade tip of the cutter (4) is a plane parallel to the plane where the de-adhesion station (503) is located.

2. The adhesive removal device for LNG bubble block shear test workpiece according to claim 1, characterized in that: The limiting component includes a limiting frame (5), which cooperates with the base plate (2) to form a limiting position for movement in a direction parallel to the base plate (2) and a limiting position for movement in a direction closer to the base plate (2).

3. The adhesive removal device for LNG bubble block shear test workpiece according to claim 2, characterized in that: A pair of recesses (502) are provided on the limiting frame (5), and the recesses (502) are provided on the two long frame strips of the limiting frame (5).

4. The adhesive removal device for LNG bubble block shear test workpiece according to claim 2, characterized in that: The limiting component also includes a pressure plate mechanism disposed on the base plate (2), which is used to limit movement in the direction away from the base plate (2).

5. The adhesive removal device for LNG bubble block shear test workpiece according to claim 4, characterized in that: The pressure plate mechanism includes a screw (601) and a pressure plate (602). The screw (601) passes through the pressure plate (602) and is fixed on the base plate (2). The pressure plate (602) can rotate around the screw (601). During the rotation, the pressure plate (602) can rotate into the de-adhesion station (503) to restrict the position of the shear test workpiece (101) or rotate away from the de-adhesion station (503) to release the shear test workpiece (101).

6. The adhesive removal device for LNG bubble block shear test workpiece according to claim 5, characterized in that: The pressure plate (602) includes a rotating part (6021) and a pressing part (6022). The rotating part (6021) and the pressing part (6022) are connected to form an L-shape. The end of the rotating part (6021) away from the pressing part (6022) is rotatably connected to a screw (601). The pressing part (6022) can extend into the de-adhesive station (503) to restrict the position of the shear test workpiece (101) or leave the de-adhesive station (503) to release the shear test workpiece (101).

7. The adhesive removal device for LNG bubble block shear test workpiece according to claim 6, characterized in that: A linear groove (102) is provided on the surface of the shear test workpiece (101) away from the base plate (2), and the clamping part (6022) can be inserted into the linear groove (102). A clearance slope (6023) is provided at the end of the clamping part (6022) away from the rotating part (6021).

8. The adhesive removal device for LNG bubble block shear test workpiece according to claim 1, characterized in that: The drive mechanism includes a control valve (301) and a cylinder (302). Several air pipes (303) are connected between the cylinder (302) and the control valve (301). The control valve (301) is used to control the air supply and exhaust of the cylinder (302). The cutter (4) is located at the end of the cylinder (302) telescopic rod outside the cylinder (302).

9. The adhesive removal device for LNG bubble block shear test workpiece according to claim 8, characterized in that: A connecting plate (304) is provided on the telescopic rod of the cylinder (302), and an mounting plate (8) is connected to the connecting plate (304). The cutter (4) is fixed on the mounting plate (8). Two slide rails (701) are provided on the base plate (2). The extension direction of the slide rails (701) is parallel to the movement trajectory of the cutter (4). A slider (702) that can slide on the slide rails (701) is provided. Both sliders (702) are fixed on the mounting plate (8).

10. The degumming device for LNG bubble block shear test workpiece according to claim 9, characterized in that: A number of waist holes are provided on the cutter (4). Fasteners fix the cutter (4) to the mounting plate (8) through the waist holes. The length direction of the waist holes is parallel to the plane of the base plate (2) and the length direction of the waist holes is perpendicular to the movement direction of the cutter (4).

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