Tool for detecting strength of paper plate

Abstract

The utility model relates to a tool for detecting the strength of a paper plate, which aims at solving the technical problem that the current paper plate for positioning has a certain size and is not enough in applicability for paper plates with different sizes, and comprises a base plate and a limiting strip, the two limiting strips are symmetrically arranged on the top side of the base plate. The two limiting strips are connected with the base plate through an adjusting structure. The adjusting structure comprises a fixed block, a double-thread screw, a rotating handle and a movable block; the two fixing blocks are fixedly arranged at the two ends of a groove formed in the middle of the top side of the base plate correspondingly. One end of the double-thread screw is rotationally connected with one fixing block through a rotating shaft, and the other end of the double-thread screw penetrates through the other fixing block; the rotating handle is fixedly arranged at the other end of the double-thread screw; the two movable blocks are arranged on the two threaded sections of the double-thread screw in a threaded and sleeving mode correspondingly. The paper tray positioning and detecting device has the advantages that the distance between the two limiting strips is adjusted according to the size of the bottom of a paper tray, and the paper tray positioning and detecting device is suitable for positioning and detecting paper trays of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of paper tray strength detection, in particular to a tool for paper tray strength detection. Background Art

[0002] A paper plate is a paper container made of white cardboard made from chemical wood pulp and pressed through a plate rolling machine. The paper plate has the same appearance as other porcelain plates, but is much lighter and can be used to hold dry foods.

[0003] Paper trays require a certain level of strength, so after production, they undergo random testing. The trays are positioned on a suitable fixture and then run through a press for strength testing. Existing testing fixtures only allow for positioning of trays of a certain size after placement, making them inadequate for different sizes.

[0004] In view of this, we propose a tool for testing the strength of paper plates. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the existing technology, meet the actual needs, and provide a tool for testing the strength of a paper tray to solve the technical problem that the current paper trays used for positioning have a certain size and are not applicable to different sizes.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a tool for testing the strength of a paper tray, including a base plate and a limit strip;

[0007] The substrate is arranged on a testing table;

[0008] Wherein, the two ends of the front and rear sides of the substrate are respectively fixed with connection blocks, and the connection blocks are provided with mounting holes;

[0009] Two limiting bars are symmetrically arranged on the top side of the substrate;

[0010] Wherein, the two limiting bars are connected to the base plate through an adjustment structure;

[0011] The adjustment structure includes a fixed block, a double-headed screw, a rotating handle and a moving block;

[0012] Two fixing blocks are respectively fixed at two ends of a groove opened in the middle of the top side of the substrate;

[0013] One end of the double-headed screw is rotatably connected to one of the fixed blocks via a rotating shaft, and the other end is passed through the other fixed block;

[0014] The rotating handle is fixed to the other end of the double-headed screw;

[0015] The two moving blocks are respectively threadedly sleeved on the two threaded sections of the double-start screw;

[0016] Wherein, the top side of the moving block is fixedly connected to the bottom side of the limiting bar.

[0017] Preferably, sliders are fixed on both sides of the moving block, and sliding grooves are opened on both sides of the groove, and the sliders are slidably matched with the sliding grooves.

[0018] Preferably, the slider is in an arc-shaped structure, and the slider is adapted to the sliding groove.

[0019] Preferably, the inner side of the top of the limiting strip is configured as an inclined surface.

[0020] Preferably, an abutting spring is arranged on the vertical section at the inner bottom of the limiting strip.

[0021] Preferably, the cross section of the abutting elastic piece is designed to be arc-shaped, and the arched end of the abutting elastic piece faces inward.

[0022] Preferably, an auxiliary extrusion structure is arranged on the substrate;

[0023] The auxiliary extrusion structure includes a vertical plate and a flat plate;

[0024] Two vertical plates are respectively fixed in the middle of the front and rear sides of the base plate;

[0025] Wherein, a slot is respectively provided on one side of the two vertical plates opposite to each other, the bottom end of the slot is aligned with the top side of the base plate, and the top end of the slot is open;

[0026] The two ends of the flat plate are respectively plugged and matched with the two slots.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. The utility model has the advantage of being able to adjust the distance between the two limit bars by setting a limit bar, a fixed block, a double-headed screw, a rotating handle and a movable block, and being able to adjust the distance according to the size of the bottom of the paper tray. It is suitable for positioning and detecting paper trays of different sizes, and solves the problem that the paper tray size used for positioning is fixed and is not applicable to different sizes.

[0029] 2. The utility model has the advantages of assisting the moving block to move in the groove and keeping the moving block stable by setting the slider and the slide groove, and the arc-shaped contact surface resistance of the slider and the slide groove is small and does not affect the movement.

[0030] 3. The present invention has the advantage of providing an abutting spring sheet to abut and clamp the base of the paper tray after placement, making the placement of the paper tray more stable.

[0031] 4. The utility model provides a vertical plate, a slot and a flat plate. After the paper tray is placed, the two ends of the flat plate are respectively inserted into the two slots, and the flat plate contacts the top side of the paper tray. During the test, the pressure head of the external squeezing mechanism is pressed in the middle of the flat plate, so that the force on the paper tray is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 This is a schematic diagram of the limit bar structure of the utility model;

[0034] Figure 3 This is a schematic diagram of the substrate structure of the present utility model;

[0035] Figure 4 This is a schematic diagram of the adjustment structure of the utility model;

[0036] Figure 5 This is a schematic diagram of the auxiliary extrusion structure of the utility model;

[0037] In the figure: 1. Base plate; 2. Connecting block; 3. Limiting strip; 4. Adjusting structure; 5. Auxiliary extrusion structure;

[0038] 101, groove; 102, chute;

[0039] 301, inclined surface; 302, contact spring;

[0040] 401, fixed block; 402, double-headed screw; 403, handle; 404, moving block; 405, slider;

[0041] 501, vertical board; 502, flat board;

[0042] 5011, slot. DETAILED DESCRIPTION

[0043] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0044] Example 1: A tool for testing the strength of a paper tray, see Figures 1 to 4 ;

[0045] The apparatus comprises a base plate 1 and a limiting strip 3; the base plate 1 is placed on the test platform; a connecting block 2 is fixed to each of the front and rear ends of the base plate 1, and a mounting hole is provided on the connecting block 2; two limiting strips 3 are symmetrically arranged on the top side of the base plate 1; the two limiting strips 3 are connected to the base plate 1 via an adjusting structure 4;

[0046] The adjustment structure 4 includes a fixed block 401, a double-headed screw 402, a rotating handle 403 and a movable block 404; the two fixed blocks 401 are respectively fixed at the two ends of the groove 101 opened in the middle of the top side of the base plate 1; one end of the double-headed screw 402 is rotatably connected to a fixed block 401 through a rotating shaft, and the other end is passed through the other fixed block 401; the rotating handle 403 is fixed at the other end of the double-headed screw 402; the two movable blocks 404 are respectively threadedly sleeved on the two threaded sections of the double-headed screw 402; among them, the top side of the movable block 404 is fixedly connected to the bottom side of the limit bar 3; the inner side of the top of the limit bar 3 is set into a slope 301. When placing the paper tray, the base of the paper tray can be placed more easily along the large opening formed by the two slopes 301.

[0047] The utility model has the advantage of being able to adjust the distance between the two limit bars 3 by setting the limit bar 3, the fixed block 401, the double-headed screw 402, the rotating handle 403 and the movable block 404, so as to be suitable for positioning and detecting paper trays of different sizes. It solves the problem that the paper trays used for positioning have a certain size and are not applicable to different sizes.

[0048] Slide blocks 405 are fixed on both sides of the moving block 404, and slide grooves 102 are respectively opened on both sides of the groove 101, and the slide blocks 405 slide in cooperation with the slide grooves 102. The slide blocks 405 are arc-shaped structures, and the slide blocks 405 and the slide grooves 102 are adapted.

[0049] The utility model has the advantages of assisting the moving block 404 to move in the groove 101 and keeping the moving block 404 stable by setting the slider 405 and the slide groove 102, and the arc-shaped contact surface resistance of the slider 405 and the slide groove 102 is small and does not affect the movement.

[0050] An abutting spring piece 302 is arranged on the vertical section at the bottom inner side of the limiting strip 3 . The cross section of the abutting spring piece 302 is designed to be arc-shaped, and the arched end of the abutting spring piece 302 faces inward.

[0051] The present invention has the advantage of abutting and clamping the paper tray base after placement by providing the abutting spring piece 302, so that the paper tray placement is more stable.

[0052] Example 2: A tool for testing the strength of a paper tray, see Figure 1 and Figure 5 ;

[0053] An auxiliary extrusion structure 5 is arranged on the substrate 1;

[0054] The auxiliary extrusion structure 5 includes a vertical plate 501 and a flat plate 502; the two vertical plates 501 are respectively fixed in the middle of the front and back sides of the base plate 1; wherein, the two vertical plates 501 are respectively provided with slots 5011 on the opposite sides, the bottom ends of the slots 5011 are aligned with the top side of the base plate 1, and the top ends of the slots 5011 are open; the two ends of the flat plate 502 are respectively inserted into and matched with the two slots 5011.

[0055] The utility model provides a vertical plate 501, a slot 5011 and a flat plate 502. After the paper tray is placed, the two ends of the flat plate 502 are respectively inserted into the two slots 5011, and the flat plate 502 contacts the top side of the paper tray. During testing, the pressure head of the external squeezing mechanism is pressed in the middle of the flat plate 502, so that the force on the paper tray is more uniform.

[0056] Working principle: According to the size of the paper tray base to be tested, the handle 403 is rotated, and the double-headed screw 402 rotates accordingly. The two moving blocks 404 then move relative to or away from each other along the groove 101, adjusting the distance between the two limit bars 3 to adapt to the paper tray base. The flat plate 502 is in the removed state, and the paper tray is placed between the two limit bars 3. The base of the paper tray is placed along the large opening formed by the two inclined surfaces 301. After placement, the base of the paper tray contacts and squeezes the curved abutment spring 302, and the abutment spring 302 abuts and clamps the placed paper tray base. The two ends of the flat plate 502 are respectively inserted into the two slots 5011, and the flat plate 502 contacts the top side of the paper tray. During the test, the pressure head of the external squeezing mechanism presses on the middle of the flat plate 502 to squeeze the paper tray for strength testing.

[0057] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A tool for testing the strength of a paper tray, characterized in that: include: substrate(1); Wherein, connection blocks (2) are fixedly provided at both ends of the front and rear sides of the base plate (1), and mounting holes are provided on the connection blocks (2); Two limiting bars (3) are symmetrically arranged on the top side of the substrate (1); Wherein, the two limiting bars (3) are connected to the base plate (1) via an adjustment structure (4); The regulating structure (4) comprises: Two fixing blocks (401) are respectively fixed at two ends of a groove (101) opened in the middle of the top side of the substrate (1); a double-headed screw (402), one end of which is rotatably connected to one of the fixed blocks (401) via a rotating shaft, and the other end of which is passed through the other fixed block (401); A rotating handle (403) is fixed to the other end of the double-headed screw (402); Two moving blocks (404) are respectively threadedly sleeved on the two threaded sections of the double-headed screw (402); The top side of the moving block (404) is fixedly connected to the bottom side of the limiting bar (3).

2. A tool for testing the strength of a paper tray as claimed in claim 1, characterized in that: Slide blocks (405) are fixed on both sides of the moving block (404), and slide grooves (102) are opened on both sides of the groove (101), and the slide blocks (405) are slidably matched with the slide grooves (102).

3. A tool for testing the strength of a paper tray as claimed in claim 2, characterized in that: The slider (405) has an arc-shaped structure, and the slider (405) is adapted to the slide groove (102).

4. A tool for testing the strength of a paper tray as claimed in claim 1, characterized in that: The inner side of the top of the limiting strip (3) is formed into an inclined surface (301).

5. A tool for testing the strength of a paper tray as claimed in claim 4, characterized in that: An abutting spring piece (302) is arranged on the vertical section at the bottom inner side of the limiting strip (3).

6. A tool for testing the strength of a paper tray as claimed in claim 5, characterized in that: The cross section of the abutting spring piece (302) is designed to be arc-shaped, and the arched end of the abutting spring piece (302) faces inward.

7. A tool for testing the strength of a paper tray as claimed in claim 6, characterized in that: An auxiliary extrusion structure (5) is arranged on the substrate (1); The auxiliary extrusion structure (5) comprises: Two vertical plates (501) are respectively fixed in the middle of the front and rear sides of the base plate (1); Wherein, slots (5011) are respectively provided on opposite sides of the two vertical plates (501), the bottom ends of the slots (5011) are aligned with the top side of the base plate (1), and the top ends of the slots (5011) are open; The two ends of the flat plate (502) are respectively plugged into and matched with the two slots (5011).

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