Cup body stiffness testing machine

Abstract

The utility model relates to the technical field of cup body stiffness testing equipment, and in particular to a cup body stiffness testing machine, which includes a cup body stiffness testing machine body and a calibration mechanism. An operating table and an operation controller are provided on the cup body stiffness testing machine body, test push rods are installed on both sides of the operating table, a support rod is installed on the upper side of the operating table, a cup tray is installed on the support rod, and the calibration mechanism includes a mounting ring seat. The utility model is simple to operate through the calibration mechanism provided. Every time the cup body stiffness testing machine needs to be calibrated after completing the test, it rotates the turntable to align the calibration hole of the calibration block with the test push rod, and then drives the test push rod into the calibration hole, and finally starts the small electric telescopic rod to drive the left sliding plate groove to abut against the test push rod. The control machine automatically completes the calibration process according to the test data of the pressure sensor. The utility model does not need to flip the instrument for calibration, and the calibration process is convenient and fast, which improves practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of cup body stiffness testing equipment, in particular to a cup body stiffness testing machine. Background Art

[0002] The cup body stiffness testing machine is a device used to test the bending strength of paper cups or plastic cups. It is usually widely used by paper cup or plastic cup manufacturers and related scientific research and quality inspection departments.

[0003] Stiffness is an indicator to measure the bending strength of paper and paperboard. It is measured by static bending. The resistance when the sample reaches a certain bending angle is the bending stiffness. In the prior art, during the test, the sample cup is placed on the cup tray of the stiffness tester and ensured to be placed stably. Then, the sensor probe is vertically contacted to the side wall of the cup, and the movable stand is adjusted so that the vertical distance between the probe and the bottom of the cup is about two-thirds of the height of the cup. When the movable stand moves forward a certain distance, the instrument will automatically record the stiffness value of the paper cup. After each measurement, the sensor probe of the cup body stiffness tester needs to be calibrated to ensure the accuracy of subsequent tests. During calibration, the cup body stiffness tester will be turned 90 degrees so that the sensor probe is vertically upward, and then a standard weight for calibration is placed on the sensor probe. The calibration work is completed when the pressure value measured by the calibrated sensor probe is consistent with the weight of the standard weight.

[0004] In the above technology, the instrument needs to be calibrated after completing the stiffness test, and the instrument needs to be turned over each time the calibration is performed, which is not convenient to use. In addition, the calibration process requires professionals with fine operation. Therefore, it is necessary to propose a testing machine that can simplify the calibration process. Therefore, we proposed a cup body stiffness testing machine. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and proposes a cup body stiffness testing machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A cup body stiffness testing machine comprises a cup body stiffness testing machine body and a calibration mechanism, an operating table and an operation controller are arranged on the cup body stiffness testing machine body, test push rods are installed on both sides of the operating table, a support rod is installed on the upper side of the operating table, and a cup tray is installed on the support rod; the calibration mechanism comprises a mounting ring seat, a turntable is rotatably installed on the inner side of the mounting ring seat, a limiting screw is arranged on the side of the mounting ring seat, a connecting rod is fixedly installed on the side of the turntable, a calibration block is fixedly installed on the outer end of the connecting rod, a small electric telescopic rod is installed on the rear side of the calibration block, a calibration hole is opened on the front side of the calibration block, the output end of the small electric telescopic rod slides through the inner side of the calibration hole and a right sliding disk groove is fixedly installed on the output end of the small electric telescopic rod, the left side of the right sliding disk groove is movably connected with the left sliding disk groove, and an annular pressure sensor is fixedly connected between the right sliding disk groove and the left sliding disk groove.

[0008] Preferably, a protective sleeve is provided on the outer side of the support rod, and the protective sleeve is fixedly mounted on the operating table.

[0009] Preferably, a positioning groove is provided on the cup tray, and the positioning groove is a circular ring pattern.

[0010] Preferably, the inner end of the limiting screw is threadedly connected to the inner side of the mounting ring seat and the inner end of the limiting screw is in contact with the side wall of the turntable.

[0011] Preferably, the outer end of the limiting screw is fixedly connected with a nut, and an anti-slip groove is provided on the nut.

[0012] Preferably, the connecting rod is an L-shaped connecting rod.

[0013] Preferably, the inner diameter of the calibration hole is slightly larger than the outer diameter of the test ejector rod, and balls are arranged on the inner wall of the calibration hole, and the balls are densely and evenly distributed along the inner wall of the calibration hole.

[0014] Preferably, the pressure sensor is electrically connected to the operation controller.

[0015] In the utility model, the cup body stiffness tester is provided with a calibration mechanism. When the cup body stiffness tester needs to be calibrated after completing the test, the calibration mechanism in the utility model can be directly used at this time, which is specifically manifested as follows: by loosening the limit screw, the turntable obtains the rotational freedom inside the mounting ring seat, and the turntable is rotated, and the connecting rod fixedly connected to the turntable drives the calibration block to rotate. After adjusting until the calibration hole on the calibration block is aligned with the end of the test push rod, the limit screw is tightened. At this time, the cup body stiffness tester is started to push the test push rod into the calibration hole. Subsequently, the small electric telescopic rod on the rear side of the calibration block is started to drive the left sliding disc groove to advance toward the test push rod. When the left sliding disc groove contacts the test push rod, its pressure transmission system is the left sliding disc groove, the pressure sensor and the right sliding disc groove in sequence. The pressure sensor can sense the abutment pressure value between the left sliding disc groove and the test push rod. The sensor inside the test push rod also has a reading data at this time. The operation controller directly calibrates the reading data of the test push rod to the pressure sensor value to complete the calibration process.

[0016] The utility model has a reasonable design and is easy to operate through the calibration mechanism. Every time the cup body stiffness testing machine needs to be calibrated after completing the test, the turntable is rotated to align the calibration hole of the calibration block with the test push rod, and then the test push rod is driven into the calibration hole, and finally the small electric telescopic rod is started to drive the left sliding plate groove to abut against the test push rod. The control machine automatically completes the calibration process according to the test data of the pressure sensor. Compared with the traditional calibration process of the cup body stiffness testing machine, the utility model does not need to flip the instrument, the calibration process is convenient and fast, and the practicality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional structure diagram of the cup body stiffness testing machine proposed in the utility model Figure 1 ;

[0018] Figure 2 The three-dimensional structure diagram of the cup body stiffness testing machine proposed in the utility model Figure 2 ;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the calibration mechanism of the cup body stiffness testing machine proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the internal cross-sectional structure of the calibration block of the cup body stiffness testing machine.

[0021] In the figure: 1. Cup body stiffness testing machine body; 2. Operating table; 3. Operating controller; 4. Test push rod; 5. Support rod; 6. Casing; 7. Cup tray; 8. Calibration mechanism; 81. Mounting ring seat; 82. Turntable; 83. Limit screw; 84. Nut; 85. Connecting rod; 86. Calibration block; 87. Small electric telescopic rod; 88. Calibration hole; 89. Ball; 810. Right slide plate slot; 811. Left slide plate slot; 812. Pressure sensor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-4 The cup body stiffness testing machine includes a cup body stiffness testing machine body 1 and a calibration mechanism 8. An operating table 2 and an operating controller 3 are arranged on the cup body stiffness testing machine body 1. Test push rods 4 are installed on both sides of the operating table 2. A support rod 5 is installed on the upper side of the operating table 2. A cup tray 7 is installed on the support rod 5. A protective tube 6 is arranged on the outer side of the support rod 5. The protective tube 6 is fixedly installed on the operating table 2. A positioning groove is arranged on the cup tray 7. The positioning groove is a circular ring pattern.

[0024] Through the above structure, the positioning grooves provided on the cup tray 7 help the test operator to place and position the test cup body, so as to facilitate its centering.

[0025] In this embodiment, the calibration mechanism 8 includes a mounting ring seat 81, a turntable 82 is rotatably mounted on the inner side of the mounting ring seat 81, a limit screw 83 is arranged on the side of the mounting ring seat 81, a connecting rod 85 is fixedly mounted on the side of the turntable 82, a calibration block 86 is fixedly mounted on the outer end of the connecting rod 85, a small electric telescopic rod 87 is mounted on the rear side of the calibration block 86, a calibration hole 88 is opened on the front side of the calibration block 86, the output end of the small electric telescopic rod 87 slides through the inside of the calibration hole 88 and a right sliding disk groove 810 is fixedly mounted on the output end of the small electric telescopic rod 87, a left sliding disk groove 811 is movably clamped on the left side of the right sliding disk groove 810, an annular pressure sensor 812 is fixedly connected between the right sliding disk groove 810 and the left sliding disk groove 811, the connecting rod 85 is an L-shaped connecting rod, the inner end of the limit screw 83 is screwed through to the inner side of the mounting ring seat 81 and the inner end of the limit screw 83 abuts against the side wall of the turntable 82.

[0026] Through the above structure, the inner end of the limit screw 83 is threaded through the inner side of the mounting ring seat 81 and the inner end of the limit screw 83 abuts against the side wall of the turntable 82. When the limit screw 83 is turned, the inner end of the limit screw 83 applies pressure to the side wall of the turntable 82, and friction is formed between the inner end of the limit screw 83 and the turntable 82, thereby limiting the rotational freedom of the turntable 82.

[0027] In this embodiment, the outer end of the limiting screw 83 is fixedly connected to a nut 84 , and an anti-slip groove is provided on the nut 84 .

[0028] Through the above structure, the nut 84 is arranged at the outer end of the limit screw 83. The limit screw 83 can be driven to rotate by turning the nut 84. In addition, the anti-slip groove is arranged on the nut 84 to prevent the hand from slipping during actual operation.

[0029] In this embodiment, the inner diameter of the calibration hole 88 is slightly larger than the outer diameter of the test ejector rod 4 , and balls 89 are arranged on the inner wall of the calibration hole 88 , and the balls 89 are densely and evenly distributed along the inner wall of the calibration hole 88 .

[0030] Through the above structure, the arrangement of the ball 89 greatly reduces the sliding friction inside the calibration hole 88, thereby increasing the calibration accuracy.

[0031] In this embodiment, the pressure sensor 812 is electrically connected to the operation controller 3 .

[0032] Through the above structure, the sensing data of the pressure sensor 812 can be transmitted to the operation controller 3 electrically connected thereto in real time.

[0033] In the present invention, when in use, when the cup body stiffness tester needs to be calibrated after completing the test, the limit screw 83 is driven to rotate by rotating the nut 84, so that the inner end of the limit screw 83 releases the rotation freedom restriction on the turntable 82, and then the turntable 82 is rotated, and the connecting rod 85 fixedly connected to the turntable 82 drives the calibration block 86 to rotate. After the calibration hole 88 at the front end of the calibration block 86 is adjusted to be aligned with the end of the test push rod 4, the nut 84 is rotated to make the inner end of the limit screw 83 abut against the side wall of the turntable 82. At this time, the calibration block 86 completes the positioning and fixing work, and the cup body stiffness tester is started at this time to push the test push rod 4 into the calibration The inside of the hole 88 can be used, and the small electric telescopic rod 87 on the rear side of the calibration block 86 is subsequently started to drive the left sliding disc slot 811 to advance toward the test push rod 4. When the left sliding disc slot 811 contacts the test push rod 4, its pressure transmission system is the left sliding disc slot 811, the pressure sensor 812 and the right sliding disc slot 810 in sequence, and finally transmitted to the output end of the small electric telescopic rod 87. The pressure sensor 812 can sense the contact pressure value between the left sliding disc slot 811 and the test push rod 4. The sensor inside the test push rod 4 also has a reading data at this time. The operation controller 3 directly calibrates the reading data of the test push rod 4 to the value of the pressure sensor 812 to complete the calibration process.

[0034] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Cup body stiffness testing machine, characterized in that: The invention comprises a cup body stiffness tester body (1) and a calibration mechanism (8); an operating table (2) and an operating controller (3) are arranged on the cup body stiffness tester body (1); test push rods (4) are installed on both sides of the operating table (2); a support rod (5) is installed on the upper side of the operating table (2); and a cup tray (7) is installed on the support rod (5); The calibration mechanism (8) comprises a mounting ring seat (81), a rotating disk (82) is rotatably mounted inside the mounting ring seat (81), a limiting screw (83) is arranged on the side of the mounting ring seat (81), a connecting rod (85) is fixedly mounted on the side of the rotating disk (82), a calibration block (86) is fixedly mounted on the outer end of the connecting rod (85), a small electric telescopic rod (87) is mounted on the rear side of the calibration block (86), a calibration hole (88) is opened on the front side of the calibration block (86), an output end of the small electric telescopic rod (87) slides through the inside of the calibration hole (88) and a right sliding disk groove (810) is fixedly mounted on the output end of the small electric telescopic rod (87), a left sliding disk groove (811) is movably connected to the left side of the right sliding disk groove (810), and an annular pressure sensor (812) is fixedly connected between the inside of the right sliding disk groove (810) and the left sliding disk groove (811).

2. The cup body stiffness testing machine according to claim 1, characterized in that: A protective tube (6) is arranged on the outside of the support rod (5), and the protective tube (6) is fixedly mounted on the operating table (2).

3. The cup body stiffness testing machine according to claim 1, characterized in that: The cup tray (7) is provided with a positioning groove, and the positioning groove is a circular ring pattern.

4. The cup body stiffness testing machine according to claim 1, characterized in that: The inner end of the limiting screw (83) is threadedly connected to the inner side of the mounting ring seat (81), and the inner end of the limiting screw (83) is in contact with the side wall of the rotating disk (82).

5. The cup body stiffness testing machine according to claim 1, characterized in that: The outer end of the limiting screw (83) is fixedly connected to a nut (84), and an anti-slip groove is arranged on the nut (84).

6. The cup body stiffness testing machine according to claim 1, characterized in that: The connecting rod (85) is an L-shaped connecting rod.

7. The cup body stiffness testing machine according to claim 1, characterized in that: The inner diameter of the calibration hole (88) is slightly larger than the outer diameter of the test push rod (4), and balls (89) are arranged on the inner wall of the calibration hole (88), and the balls (89) are densely and evenly distributed along the inner wall of the calibration hole (88).

8. The cup body stiffness testing machine according to claim 1, characterized in that: The pressure sensor (812) is electrically connected to the operation controller (3).

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