A device for testing heat resistance of plastic tableware

Abstract

The present invention discloses a device for detecting the heat resistance of plastic tableware, belonging to the field of detection devices. The device comprises a workbench, the upper surface of which is fixedly connected with a U-shaped frame; the upper surface of the workbench is provided with a plurality of through-type through grooves, the inner side of the through grooves is provided with a toggle wheel, the right side of the workbench is rotatably connected with a toggle rod through a rotating shaft, the left end of the toggle rod penetrates into the interior of the workbench and is coaxially fixedly connected with the inner sides of the plurality of toggle wheels; the inner side of the U-shaped frame is provided with a plurality of sliders, a connecting rod is fixedly connected between the plurality of sliders, and a flamethrower is embedded and installed on the lower surface of the slider; the toggle rod rotates, thereby driving the plurality of toggle wheels to rotate together, and then the tableware clamped between the two clamping plates can be rotated by the toggle wheel, so that the heating is more uniform during heating, thereby achieving a better heat resistance detection effect.

Description

Technical Field

[0001] The invention relates to the field of detection devices, and in particular to a detection device for the heat resistance of plastic tableware. Background Art

[0002] Plastic tableware is the most commonly used eating tool in the fast food industry. Plastic can be recycled and reused. The production process of polylactic acid is pollution-free, and the product can be biodegraded and circulated in nature. Therefore, it is an ideal green polymer material. The absolutely harmless property of polylactic acid to the human body makes polylactic acid have unique advantages in the field of disposable tableware, food packaging materials and other disposable products.

[0003] Patent: CN216484720U provides a device for testing the heat resistance of polylactic acid plastic tableware. The device for testing the heat resistance of polylactic acid plastic tableware comprises: a bottom plate; an adjustment component, the adjustment component is fixedly connected to the top of the bottom plate; a side plate, the side plate is fixedly connected to one side of the bottom plate; a mounting plate, the mounting plate is fixedly connected to the top of the side plate; a cleaning component, the cleaning component is fixedly connected to one side of the top of the mounting plate. The device for testing the heat resistance of polylactic acid plastic tableware provided by the device can well adjust the differences in the circumferential burning surface of polylactic acid plastic through the adjustment component, so that the detected results are more accurate. In addition, the cleaning component can filter and adsorb harmful gases generated during the heat resistance test, thereby avoiding these harmful gases from causing harm to the bodies of on-site staff and ensuring a good working environment for the staff.

[0004] The above technology is not convenient for testing the heat resistance of multiple tableware at the same time. The flamethrower is fixed and has a limited range, which easily leads to incomplete heating of the tableware surface. Improvements are needed. For this reason, we propose a device for testing the heat resistance of plastic tableware. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a method for conveniently testing the heat resistance of multiple tableware at the same time; another purpose of the present invention is to provide a method for allowing the surface of the tableware to be heated more comprehensively.

[0006] Technical solution: A device for testing the heat resistance of plastic tableware, comprising a workbench, the upper surface of which is fixedly connected with a U-shaped frame;

[0007] The upper surface of the workbench is provided with a plurality of through slots, the inner side of the through slots is provided with a toggle wheel, the right side of the workbench is rotatably connected with a toggle rod via a rotating shaft, the left end of the toggle rod penetrates into the interior of the workbench and is coaxially fixedly connected with the inner sides of the plurality of toggle wheels;

[0008] A plurality of slide blocks are arranged on the inner side of the U-shaped frame, and a connecting rod is fixedly connected between the plurality of slide blocks. A flamethrower is embedded and installed on the lower surface of the slide block, and the top of the flamethrower is located above the slide block and is fixedly connected to a gas delivery hose;

[0009] The front and rear surfaces of the U-shaped frame are both fixedly connected to two fixed blocks, and the opposite sides of the two fixed blocks located in front of the U-shaped frame are connected to a rotating rod through a rotating shaft for common rotation, and the outer wall of the rotating rod is fixedly connected to a plurality of bidirectional screws, and the outer wall of the bidirectional screw is threadedly connected to two screw blocks, and the rear surface of the screw block is fixedly connected to a moving plate, and the right side of the moving plate located at the left end of the bidirectional screw is fixedly connected to a telescopic piston tube, and the right end of the telescopic piston tube and the left side of the moving plate located at the right end of the bidirectional screw are both rotatably connected to a clamping plate through a rotating shaft;

[0010] A plurality of water tanks are fixedly connected to the front surface of the workbench, a ventilation pipe is fixedly connected between the water tank and the telescopic piston tube, and an observation tube is integrally formed on the right side of the upper surface of the water tank.

[0011] Furthermore, a support plate is fixedly connected to the lower surface of the workbench.

[0012] Furthermore, an L-shaped bracket is fixedly connected to the right side of the workbench, a motor is fixedly connected to the inner side of the L-shaped bracket, a disc is fixedly connected to the left end of the output shaft of the motor and the right end of the toggle rod, and a cylinder is fixedly connected to the top of the opposite sides of the two discs.

[0013] Furthermore, an air box 1 is fixedly connected to the upper right side of the U-shaped frame, the right end of the connecting rod penetrates into the interior of the air box 1 and is fixedly connected to a piston plate 1, and an air box 2 is fixedly connected to the lower right side of the U-shaped frame, a ventilation pipe is fixedly connected between the air box 1 and the air box 2, the interior of the air box 1 is slidably connected to the piston plate 2, the lower surface of the piston plate 2 is fixedly connected to a rotating connecting piece, the outer side wall of the rotating connecting piece is rotatably connected to a traction rod via a rotating shaft, and the bottom end of the traction rod is sleeved on the outer side of the cylinder and is rotatably connected to the cylinder via a rotating shaft.

[0014] Furthermore, two cross bars are fixedly connected to the inner side of the U-shaped frame and the inner side of the plurality of sliding blocks, and the cross bars are slidably connected to the sliding blocks.

[0015] Furthermore, a plurality of shunt pipes are fixedly connected to the upper surface of the U-shaped frame, the top ends of the plurality of shunt pipes are commonly fixedly connected to an air connection head, and the bottom ends of the shunt pipes are fixedly connected to the top end of the air delivery hose.

[0016] Furthermore, a limiting rod is fixedly connected between the two fixed blocks located behind the U-shaped frame, and the outer side wall of the limiting rod is slidably connected with multiple limiting blocks, and the rear surface of the limiting block is fixedly connected to the rear surface of the movable plate.

[0017] Furthermore, a piston plate three is slidably connected inside the water tank, a plurality of springs are fixedly connected between the piston plate three and the water tank, a piston block is slidably connected inside the observation tube, and a through-type exhaust hole is provided at the top of the observation tube.

[0018] Furthermore, the observation tube is made of a transparent material and has scales on its surface.

[0019] Beneficial effect: The toggle rod rotates, thereby driving multiple toggle wheels to rotate together, and then the tableware clamped between the two clamping plates can be rotated by the toggle wheels, so that the heating is more uniform during heating, thereby achieving a better heat resistance detection effect;

[0020] The gas connection head is connected to an external gas delivery device, and the surface of the plastic tableware is heated and tested by starting the flamethrower to spray fire, and multiple flamethrowers can be used to heat multiple tableware;

[0021] When the motor starts to control the tableware to rotate, the traction rod can be pulled to control the reciprocating exchange of gas inside the air box 1 and the air box 2, so that multiple flamethrowers can be pulled to move back and forth left and right through the connecting rod, thereby increasing the flame spraying range, and then making the plastic heated more comprehensively, further improving the plastic heat resistance detection effect;

[0022] By driving the multiple bidirectional screws to rotate by holding a rotating rod, two adjacent moving plates can be controlled to move relative to or away from each other, thereby controlling multiple clamping plates to clamp or release plastic tableware at the same time;

[0023] When clamping plastic tableware, the telescopic piston tube is compressed, and the gas inside the telescopic piston tube is filled into the water tank, which will push the piston plate three to move, thereby squeezing the color liquid and the movement of the piston block, so that the color liquid passes into the observation tube. When the tableware is deformed by heat, the telescopic piston tube extends under the pull of the spring, and the color liquid drops. By observing the falling position of the liquid, it is easy to understand the changes in the tableware after heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the connection structure between the workbench and the motor of the present invention;

[0026] Figure 3It is a schematic diagram of the connection structure of the slider, the crossbar, the air connection head and the connecting rod of the present invention;

[0027] Figure 4 It is a schematic diagram of the connection structure of the moving plate, the clamping plate and the water storage tank of the present invention;

[0028] Figure 5 It is a schematic diagram of the internal structure of the water storage tank of the present invention;

[0029] Figure 6 It is a schematic diagram of the internal connection structure of the air box 1 and the air box 2 of the present invention.

[0030] In the figure: 1, workbench; 2, U-shaped frame; 3, through slot; 4, toggle wheel; 5, toggle rod; 6, slider; 7, connecting rod; 8, flamethrower; 9, gas hose; 10, fixed block; 11, rotating rod; 12, two-way screw; 13, screw block; 14, moving plate; 15, telescopic piston tube; 16, clamping plate; 17, water tank; 18, ventilation pipe; 19, observation pipe; 20, support plate; 21, L shaped bracket; 22, motor; 23, disc; 24, cylinder; 25, air box one; 26, piston plate one; 27, air box two; 28, ventilation pipe; 29, piston plate two; 30, rotating connector; 31, traction rod; 32, cross bar; 33, shunt pipe; 34, air connection head; 35, limit rod; 36, limit block; 37, piston plate three; 38, spring; 39, piston block; 40, exhaust hole. DETAILED DESCRIPTION

[0031] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Example:

[0033] like Figure 1 As shown, a device for detecting the heat resistance of plastic tableware is provided, comprising a workbench 1, and a U-shaped frame 2 is fixedly connected to the upper surface of the workbench 1;

[0034] A support plate 20 is fixedly connected to the lower surface of the workbench 1;

[0035] Composed of heat resistance testing operating table.

[0036] like Figure 2 As shown, a plurality of through slots 3 are provided on the upper surface of the workbench 1, a toggle wheel 4 is provided inside the through slots 3, a toggle rod 5 is rotatably connected to the right side of the workbench 1 through a rotating shaft, and the left end of the toggle rod 5 penetrates into the interior of the workbench 1 and is coaxially fixedly connected to the inner sides of the plurality of toggle wheels 4;

[0037] An L-shaped bracket 21 is fixedly connected to the right side of the workbench 1, a motor 22 is fixedly connected to the inner side of the L-shaped bracket 21, a disc 23 is fixedly connected to the left end of the output shaft of the motor 22 and the right end of the toggle rod 5, and a cylinder 24 is fixedly connected to the top of the opposite sides of the two discs 23;

[0038] Starting the motor 22 can drive the toggle rod 5 to rotate, thereby driving multiple toggle wheels 4 to rotate together, and then the toggle wheels 4 can be used to rotate the tableware clamped between the two clamping plates 16, so that the heating is more uniform during heating, thereby achieving a better heat resistance detection effect.

[0039] like Figure 3 and Figure 6 As shown, a plurality of slide blocks 6 are arranged on the inner side of the U-shaped frame 2, and a connecting rod 7 is fixedly connected between the plurality of slide blocks 6. A flamethrower 8 is embedded and installed on the lower surface of the slide block 6, and a gas hose 9 is fixedly connected to the top of the flamethrower 8 located above the slide block 6;

[0040] An air box 1 25 is fixedly connected to the upper right side of the U-shaped frame 2, the right end of the connecting rod 7 penetrates into the interior of the air box 1 25 and is fixedly connected to a piston plate 1 26, an air box 2 27 is fixedly connected to the lower right side of the U-shaped frame 2, a vent pipe 28 is fixedly connected between the air box 1 25 and the air box 2 27, the interior of the air box 1 25 is slidably connected to a piston plate 29, the lower surface of the piston plate 29 is fixedly connected to a rotating connection member 30, the outer side wall of the rotating connection member 30 is rotatably connected to a traction rod 31 via a rotating shaft, the bottom end of the traction rod 31 is sleeved on the outer side of the cylinder 24, and is rotatably connected to the cylinder 24 via a rotating shaft;

[0041] A plurality of shunt pipes 33 are fixedly connected to the upper surface of the U-shaped frame 2, and a gas connection head 34 is fixedly connected to the top ends of the shunt pipes 33, and the bottom ends of the shunt pipes 33 are fixedly connected to the top ends of the gas delivery hoses 9;

[0042] Two cross bars 32 are fixedly connected to the inner side of the U-shaped frame 2 and the inner side of the plurality of sliders 6, and the cross bars 32 are slidably connected to the sliders 6;

[0043] The gas connection head 34 is connected to the external gas delivery device, and the flamethrower 8 is started to spray fire to heat the surface of the plastic tableware for detection. The multiple flamethrowers 8 can be used to heat multiple tableware. At the same time, the flamethrower 8 is slidably connected to the cross bar 32 by the slider 6, so that when the motor 22 starts to control the rotation of the tableware, the gas box 1 25 and the gas box 2 27 can be controlled to exchange gas back and forth under the pulling of the traction rod 31, so that the multiple flamethrowers 8 can be pulled by the connecting rod 7 to move back and forth left and right, thereby increasing the flame spraying range, thereby making the plastic heated more comprehensively, and further improving the plastic heat resistance detection effect.

[0044] like Figure 4 and Figure 5 As shown, the front and rear surfaces of the U-shaped frame 2 are fixedly connected to two fixed blocks 10, and the opposite sides of the two fixed blocks 10 located in front of the U-shaped frame 2 are connected to a rotating rod 11 through a rotating shaft, and the outer wall of the rotating rod 11 is fixedly connected to a plurality of bidirectional screws 12, and the outer wall of the bidirectional screw 12 is threadedly connected to two screw blocks 13, and the rear surface of the screw block 13 is fixedly connected to a moving plate 14, and the right side of the moving plate 14 located at the left end of the bidirectional screw 12 is fixedly connected to a telescopic piston tube 15, and the right end of the telescopic piston tube 15 and the left side of the moving plate 14 located at the right end of the bidirectional screw 12 are both connected to a clamping plate 16 through a rotating shaft.

[0045] A plurality of water tanks 17 are fixedly connected to the front surface of the workbench 1. A ventilation pipe 18 is fixedly connected between the water tank 17 and the telescopic piston tube 15. An observation pipe 19 is integrally formed on the right side of the upper surface of the water tank 17.

[0046] A limiting rod 35 is fixedly connected between the two fixing blocks 10 located at the rear of the U-shaped frame 2 , and a plurality of limiting blocks 36 are slidably connected to the outer side wall of the limiting rod 35 , and the rear surface of the limiting block 36 is fixedly connected to the rear surface of the moving plate 14 .

[0047] A piston plate 37 is slidably connected inside the water tank 17, and a plurality of springs 38 are fixedly connected between the piston plate 37 and the water tank 17. A piston block 39 is slidably connected inside the observation tube 19, and a through-type exhaust hole 40 is opened at the top of the observation tube 19.

[0048] The water tank 17 contains a colored liquid between the piston block 39 and the piston plate 37;

[0049] By driving the multiple bidirectional screws 12 to rotate by holding the rotating rod 11, the two adjacent moving plates 14 can be controlled to move relative to or opposite to each other, so that the multiple clamping plates 16 can be controlled to clamp or release the plastic tableware at the same time. When clamping the plastic tableware, the telescopic piston tube 15 is compressed, and the gas inside the telescopic piston tube 15 is filled into the water storage tank 17, which pushes the piston plate 37 to move, so that the color liquid is passed into the observation tube 19 by squeezing the color liquid and the piston block 39. When the tableware is deformed by heat, the telescopic piston tube 15 is extended under the pull of the spring 38, and the color liquid descends. By observing the descending position of the liquid, it is easy to understand the changes of the tableware after heating;

[0050] The observation tube 19 is made of transparent material and has scales on its surface;

[0051] It is convenient to detect changes in tableware after heating by observing changes in liquid level.

[0052] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A device for testing the heat resistance of plastic tableware, comprising a workbench (1), characterized in that: A U-shaped frame (2) is fixedly connected to the upper surface of the workbench (1); The upper surface of the workbench (1) is provided with a plurality of through-type through grooves (3), the inner side of the through grooves (3) is provided with a toggle wheel (4), the right side of the workbench (1) is rotatably connected to a toggle rod (5) via a rotating shaft, the left end of the toggle rod (5) penetrates into the interior of the workbench (1) and is coaxially fixedly connected to the inner sides of the plurality of toggle wheels (4); A plurality of sliders (6) are arranged on the inner side of the U-shaped frame (2), a connecting rod (7) is fixedly connected between the plurality of sliders (6), a flamethrower (8) is embedded and installed on the lower surface of the slider (6), and the top of the flamethrower (8) is located above the slider (6) and is fixedly connected to a gas hose (9); The front and rear surfaces of the U-shaped frame (2) are both fixedly connected to two fixed blocks (10); the opposite sides of the two fixed blocks (10) located in front of the U-shaped frame (2) are rotatably connected to a rotating rod (11) via a rotating shaft; the outer wall of the rotating rod (11) is fixedly connected to a plurality of bidirectional screws (12); the outer wall of the bidirectional screw (12) is threadedly connected to two screw blocks (13); the rear surface of the screw block (13) is fixedly connected to a moving plate (14); the right side of the moving plate (14) located at the left end of the bidirectional screw (12) is fixedly connected to a telescopic piston tube (15); the right end of the telescopic piston tube (15) and the left side of the moving plate (14) located at the right end of the bidirectional screw (12) are both rotatably connected to a clamping plate (16) via a rotating shaft; A plurality of water storage tanks (17) are fixedly connected to the front surface of the workbench (1), a ventilation pipe (18) is fixedly connected between the water storage tank (17) and the telescopic piston tube (15), and an observation pipe (19) is integrally formed on the right side of the upper surface of the water storage tank (17); An L-shaped bracket (21) is fixedly connected to the right side of the workbench (1), a motor (22) is fixedly connected to the inner side of the L-shaped bracket (21), a disc (23) is fixedly connected to the left end of the output shaft of the motor (22) and the right end of the toggle rod (5), and a cylinder (24) is fixedly connected to the top of the opposite sides of the two discs (23); An air box 1 (25) is fixedly connected to the upper right side of the U-shaped frame (2); the right end of the connecting rod (7) penetrates into the interior of the air box 1 (25) and is fixedly connected to a piston plate 1 (26); an air box 2 (27) is fixedly connected to the lower right side of the U-shaped frame (2); a ventilation pipe (28) is fixedly connected between the air box 1 (25) and the air box 2 (27); the interior of the air box 1 (25) is slidably connected to a piston plate 2 (29); a rotating connection member (30) is fixedly connected to the lower surface of the piston plate 2 (29); an outer wall of the rotating connection member (30) is rotatably connected to a traction rod (31) via a rotating shaft; the bottom end of the traction rod (31) is sleeved on the outer side of the cylinder (24) and is rotatably connected to the cylinder (24) via a rotating shaft.

2. A device for detecting heat resistance of plastic tableware according to claim 1, characterized in that: A support plate (20) is fixedly connected to the lower surface of the workbench (1).

3. A device for detecting heat resistance of plastic tableware according to claim 1, characterized in that: Two cross bars (32) are fixedly connected to the inner side of the U-shaped frame (2) and located on the inner side of the plurality of sliding blocks (6), and the cross bars (32) are slidably connected to the sliding blocks (6).

4. A device for detecting heat resistance of plastic tableware according to claim 1, characterized in that: A plurality of flow diversion pipes (33) are fixedly connected to the upper surface of the U-shaped frame (2); the top ends of the plurality of flow diversion pipes (33) are commonly fixedly connected to a gas connection head (34); and the bottom ends of the flow diversion pipes (33) are fixedly connected to the top end of the gas delivery hose (9).

5. The device for detecting heat resistance of plastic tableware according to claim 1, characterized in that: A limiting rod (35) is fixedly connected between the two fixed blocks (10) located at the rear of the U-shaped frame (2), a plurality of limiting blocks (36) are slidably connected to the outer side wall of the limiting rod (35), and the rear surface of the limiting block (36) is fixedly connected to the rear surface of the movable plate (14).

6. A device for detecting heat resistance of plastic tableware according to claim 1, characterized in that: The water storage tank (17) is slidably connected to a piston plate three (37) inside, a plurality of springs (38) are fixedly connected between the piston plate three (37) and the water storage tank (17), the observation tube (19) is slidably connected to a piston block (39), and a through-type exhaust hole (40) is provided at the top end of the observation tube (19).

7. A device for detecting heat resistance of plastic tableware according to claim 1, characterized in that: The observation tube (19) is made of a transparent material and has a scale on its surface.

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