Tension testing device for packing belt

Abstract

The utility model discloses a tension testing device for a packing belt, which comprises a testing platform, the testing platform is respectively provided with a fixed frame and a movable frame, the outside of the movable frame is connected with a driving piece, the fixed frame and the movable frame are respectively provided with a pull rod, the pull rods are connected with the fixed frame or the movable frame through a fixing assembly, and the pull rods are detachably connected with sleeves. The outer wall of the sleeve forms a test surface for limiting and applying pressure to the packing belt; the fixing assembly comprises a first mounting block and a second mounting block which are arranged at an interval, one end of the pull rod is rotationally connected with the first mounting block, the second mounting block comprises a lower support and an upper support which are hinged to each other, and the lower support and the upper support are used for buckling and limiting the other end of the pull rod after being connected with each other. According to the utility model, the test effect of the packing belt can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of packing belt testing devices, in particular to a kind of packing belt tension testing device. BACKGROUND

[0002] In the production and development process of packing belt, it is often necessary to detect the structural strength and the tension parameters that can be borne by packing belt through tension testing device. On this basis, the existing tension testing device is mainly composed of a fixed frame, a movable frame and a driving member, wherein the fixed frame and the movable frame are fixed and slidingly connected to the test platform respectively, the movable frame is connected to the driving member outside, and the fixed frame and the movable frame are both connected with a pull rod for sleeving the packing belt. When using, first, the two ends of the packing belt are sleeved outside the pull rod, then the movable frame is pushed by the driving member and the pushing force is detected, so that the two ends of the packing belt are pulled outwards after being pushed by the movable frame, realizing the testing function.

[0003] However, the above-mentioned testing method has the following defects: in the actual use process of packing belt, it is often necessary to bundle objects with different shapes and materials such as rough surface, sharpness, local protrusion, etc., which results in that the tension that can be borne by packing belt in different use states is different. The above-mentioned tension testing device only applies pressure to the packing belt through the pull rod, and the pull rod is usually cylindrical in shape and has a smooth surface, which results in that the testing environment does not match the actual use scene of the packing belt, and thus the detection result is deviated.

[0004] Therefore, the existing tension testing device for packing belt has the problem of poor testing effect. INVENTION CONTENTS

[0005] The purpose of the utility model is to provide a tension testing device for packing belt. It can improve the testing effect of packing belt.

[0006] The technical scheme of the utility model: a tension testing device for packing belt, comprising a test platform, the test platform is respectively provided with a fixed frame and a movable frame, the movable frame is connected with a driving member outside, the fixed frame and the movable frame are both provided with a pull rod, the pull rod is connected with the fixed frame or the movable frame through a fixed assembly, a sleeve is detachably connected to the pull rod, and the outer wall of the sleeve forms a test surface for limiting and applying pressure to the packing belt; the fixed assembly comprises a first mounting block and a second mounting block arranged at intervals, one end of the pull rod is rotatably connected to the first mounting block, the second mounting block comprises a lower support and an upper support hingedly connected to each other, and the lower support and the upper support are used for buckling and limiting the other end of the pull rod after being connected to each other.

[0007] In the foregoing tension testing device for packing belt, the middle part of the lower support and the upper support is connected with a pressing piece, and the middle part of the pressing piece forms a limiting groove for buckling and connecting the pull rod.

[0008] In the foregoing tension testing device for packing belt, one side of the lower support and the upper support is provided with a U-shaped groove, a pressing screw rod is arranged in the U-shaped groove of the lower support and rotatably connected with the lower support, and the lower end of the pressing screw rod penetrates through the U-shaped groove of the upper support and is connected with a pressing nut.

[0009] In the foregoing tension testing device for packing belt, the two sides of the moving frame are slidably connected with guide rods, and the outer portions of the guide rods are fixedly connected with the testing platform.

[0010] In the foregoing tension testing device for packing belt, the driving member is an electric push rod, the middle portion of the electric push rod is detachably connected with the testing platform, the end portion of the electric push rod is detachably connected with the middle lower end of the moving frame, and a pressure sensor is arranged between the electric push rod and the moving frame.

[0011] In the foregoing tension testing device for packing belt, a limiting block is arranged between the first mounting block and the second mounting block and located below the pull rod, and the top portion of the limiting block forms a first toothed surface.

[0012] In the foregoing tension testing device for packing belt, the bottom portion of the sleeve is provided with a second toothed surface matched with the first toothed surface, and the first toothed surface and the second toothed surface are used for tightly pressing and limiting the packing belt after being buckled with each other.

[0013] In the foregoing tension testing device for packing belt, the pull rod and the sleeve are arranged in an inner-outer nested mode and connected with each other through a locking screw.

[0014] Compared with the prior art, the tension testing device for packing belt has the following characteristics:

[0015] (1) The sleeve can replace the pull rod to sleeve and press the packing belt through the structural cooperation of the pull rod and the sleeve, on the basis of which, manufacturers can customize sleeves with different materials and shapes based on the application scenarios of the packing belt, thereby improving the testing effect of the packing belt in different states; through the structural limitation of the fixing assembly, the end of the pull rod can be fixed and unlocked, so that the end of the pull rod can be separated from the second mounting block and rotated to be extracted, thereby facilitating the disassembly, assembly and replacement of the sleeve by the operating personnel;

[0016] (2) Through the structural cooperation of the limiting block and the sleeve, the first toothed surface and the second toothed surface can also be used to tightly press and limit the end portion of the packing belt, thereby realizing the tension testing function of the long strip-shaped packing belt and improving the functionality of the tension testing device for packing belt; on the basis of this, the downward extrusion force can be applied to the end of the pull rod through the cooperation of the pressing screw rod and the pressing nut, so that the end portion of the packing belt is pressed tightly under the action of the extrusion force, that is, the testing stability of the tension testing device for packing belt is ensured;

[0017] Therefore, the testing effect on the packing belt can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a plan view of the utility model;

[0019] Figure 2 is Figure 1 A towards enlarged view of

[0020] Figure 3 is the connection schematic view of the second mounting block and the pull rod;

[0021] Figure 4 is the connection schematic view of the sleeve and the limiting block in embodiment 2.

[0022] The marks in the drawings are: 1-test platform, 2-fixed frame, 3-moving frame, 4-driving part, 5-pull rod, 6-sleeve, 7-first mounting block, 8-second mounting block, 9-pressing screw, 10-pressing nut, 11-guide rod, 12-pressure sensor, 13-limiting block, 601-test surface, 602-second toothed surface, 801-lower support, 802-upper support, 803-pressing piece, 131-first toothed surface. DETAILED DESCRIPTION

[0023] The utility model will be further explained in connection with the drawings and embodiments, but not as the basis for limiting the utility model.

[0024] Embodiment 1. A kind of packing belt is used to pull test device, constitutes as shown in Figures 1-3 , including test platform 1, test platform 1 is equipped with fixed frame 2 and moving frame 3 respectively, the outside of moving frame 3 is connected with driving part 4, fixed frame 2 and moving frame 3 are all equipped with pull rod 5, the pull rod 5 is connected fixed frame 2 or moving frame 3 by fixed assembly, pull rod 5 is detachably connected with sleeve 6, the outer wall of sleeve 6 forms the test surface 601 for limiting and pressing to packing belt, the material and the appearance of test surface 601 of sleeve 6 are customized according to test demand;The fixed assembly includes first mounting block 7 and second mounting block 8 arranged at intervals, one end of pull rod 5 is rotatably connected with first mounting block 7, the second mounting block 8 includes lower support 801 and upper support 802 that are hingedly connected with each other, lower support 801 and upper support 802 are used to be buckled and limited to the other end of pull rod 5 after being connected with each other.

[0025] The middle part of the lower support 801 and the upper support 802 is connected with the pressing piece 803, and the middle part of the pressing piece 803 forms a limiting groove for buckling and connecting the pull rod 5.

[0026] The lower support 801 and the upper support 802 are provided with U-shaped grooves on one side, the U-shaped groove of the lower support 801 is provided with a compression screw rod 9 rotatably connected with the lower support 801, and the lower end of the compression screw rod 9 penetrates through the U-shaped groove of the upper support 802 and is connected with a compression nut 10.

[0027] The mobile frame 3 is slidably connected with guide rods 11 on both sides, and the guide rods 11 are fixedly connected with the test platform 1.

[0028] The driving member 4 is an electric push rod, the middle part of the electric push rod is detachably connected with the test platform 1, the end part of the electric push rod is detachably connected with the middle lower end of the mobile frame 3, and the pressure sensor 12 is arranged between the electric push rod and the mobile frame 3.

[0029] The pull rod 5 and the sleeve 6 are arranged in an inner-outer nested mode and are connected with each other through a set screw, the cross section of the pull rod 5 is non-circular and is rotationally limited after being sleeved with the sleeve 6.

[0030] The working principle of the utility model is: the sleeve 6 and the pull rod 5 are matched in structure, so that manufacturers can manufacture sleeves 6 of various materials and shapes according to requirements, and the sleeves 6 are used for testing the packing belt under different use conditions.

[0031] After the two ends of the packing belt are respectively installed in the above manner, the operator opens the driving member 4 to push the mobile frame 3, so that the mobile frame 3 moves away from the fixed frame 2 under the pushing action, thereby cooperating with the sleeve 6 to pull apart the two ends of the packing belt, and the testing function is realized.

[0032] Embodiment 2. A tension testing device for a packing belt, which is composed of Figures 1-4As shown, including test platform 1, test platform 1 is respectively provided with fixed frame 2 and mobile frame 3, the outside of mobile frame 3 is connected with driving element 4, fixed frame 2 and mobile frame 3 are all provided with pull rod 5, pull rod 5 is connected with fixed frame 2 or mobile frame 3 through fixed assembly, pull rod 5 is detachably connected with sleeve 6, the outer wall of sleeve 6 forms test surface 601 for limiting and pressing packing belt;The fixed assembly includes first mounting block 7 and second mounting block 8 arranged at intervals, one end of pull rod 5 is rotatably connected with first mounting block 7, second mounting block 8 includes lower support 801 and upper support 802 hinged to each other, lower support 801 and upper support 802 are used for buckling and limiting the other end of pull rod 5 after being connected with each other.

[0033] The middle part of the lower support 801 and the upper support 802 is connected with the pressing plate 803, and the middle part of the pressing plate 803 forms a limiting groove for buckling and connecting the pull rod 5.

[0034] One side of the lower support 801 and the upper support 802 is provided with a U-shaped groove, a tight pressing screw 9 is arranged in the U-shaped groove of the lower support 801 and rotatably connected with the lower support 801, and the lower end of the tight pressing screw 9 passes through the U-shaped groove of the upper support 802 and is connected with a tight pressing nut 10.

[0035] The two sides of the mobile frame 3 are slidably connected with guide rods 11, and the guide rods 11 are fixedly connected with the test platform 1.

[0036] The driving element 4 is an electric push rod, the middle part of the electric push rod is detachably connected with the test platform 1, the end part of the electric push rod is detachably connected with the middle lower end of the mobile frame 3, and the pressure sensor 12 is arranged between the electric push rod and the mobile frame 3.

[0037] The first mounting block 7 and the second mounting block 8 are provided with a limiting block 13 below the pull rod 5, the limiting block 13 is detachably connected with the fixed frame 2 or the mobile frame 3, and the top of the limiting block 13 forms a first toothed surface 131.

[0038] The bottom of the sleeve 6 is provided with a second toothed surface 602 matched with the first toothed surface 131, and the first toothed surface 131 and the second toothed surface 602 are used for tightly limiting the packing belt after being buckled with each other.

[0039] The pull rod 5 and the sleeve 6 are arranged in an inner and outer nested manner and are connected with each other through a tight screw, the cross section of the pull rod 5 is non-circular and is rotatably limited after being sleeved with the sleeve 6.

[0040] Compared with the embodiment 1, the embodiment adjusts the shape of the sleeve 6 for the long strip-shaped packing belt, so that the sleeve 6 can be buckled with the lower limiting block 13 and clamped and fixed the two ends of the packing belt after the pull rod 5 is pressed, thereby realizing the tension test function of the long strip-shaped packing belt. On this basis, when the operating personnel need to replace the packing belt, they only need to slightly lift the pull rod 5 to directly pull out the packing belt, which is convenient for the operating personnel to replace the parts.

Claims

1. A tensile testing device for packing tape, comprising a testing platform (1), the testing platform (1) is respectively provided with a fixed frame (2) and a moving frame (3), the moving frame (3) is externally connected with a driving member (4), the fixed frame (2) and the moving frame (3) are both provided with a pull rod (5), characterized in that: The pull rod (5) is connected to the fixed frame (2) or the movable frame (3) through a fixing assembly, a sleeve (6) is detachably connected to the pull rod (5), and an outer wall of the sleeve (6) forms a test surface (601) for limiting and pressing the packaging belt; the fixing assembly comprises a first mounting block (7) and a second mounting block (8) arranged at intervals, one end of the pull rod (5) is rotatably connected to the first mounting block (7), and the second mounting block (8) comprises a lower support (801) and an upper support (802) hingedly connected to each other, and the lower support (801) and the upper support (802) are used for buckling and limiting the other end of the pull rod (5) after being connected to each other.

2. A tensile testing device for packaging tape according to claim 1, characterized in that: The middle part of the lower support (801) and the upper support (802) is connected with a pressing plate (803), and the middle part of the pressing plate (803) forms a limiting groove for buckling and connecting the pull rod (5).

3. A tensile testing apparatus for packaging tape according to claim 2, wherein: The lower support (801) and the upper support (802) are provided with U-shaped grooves on one side, the U-shaped groove of the lower support (801) is provided with a compression screw (9) rotatably connected to the lower support (801), and the lower end of the compression screw (9) penetrates through the U-shaped groove of the upper support (802) and is connected with a compression nut (10).

4. The tensile testing apparatus for a packing tape according to claim 1, wherein: The movable frame (3) is slidably connected with guide rods (11) on both sides, and the guide rods (11) are fixedly connected with the test platform (1) on the outside.

5. The tensile testing apparatus for a packing tape according to claim 1, wherein: The driving member (4) is an electric push rod, the middle part of the electric push rod is detachably connected with the test platform (1), the end part of the electric push rod is detachably connected to the middle lower end of the movable frame (3), and the pressure sensor (12) is arranged between the electric push rod and the movable frame (3).

6. The tensile testing apparatus for a packing tape according to claim 1, wherein: The first mounting block (7) and the second mounting block (8) are provided with a limiting block (13) below the pull rod (5), and the top of the limiting block (13) forms a first toothed surface (131).

7. A tensile testing apparatus for packaging tape according to claim 6, wherein: The bottom of the sleeve (6) is provided with a second toothed surface (602) matched with the first toothed surface (131), and the first toothed surface (131) and the second toothed surface (602) are used for tightly limiting the packaging belt after being buckled.

8. The tensile testing apparatus for a packing tape according to claim 1, wherein: The pull rod (5) and the sleeve (6) are arranged in an inner-outer nested manner and are connected to each other through a clamping screw.

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