An automatic peel rack device for testing the adhesive strength peel strength of corrugated cartons

Abstract

The utility model discloses an automatic peeling frame device for testing the adhesion strength and peeling strength of corrugated carton, the utility model discloses a plurality of peeling rods and the driving rod with helical variable pitch guide groove cooperation are set up, form the synchronous peeling structure of equidistance variable pitch, can realize the peeling rod even expansion or shrinkage along the radial in the driving rod rotation process, therefore can accurate control every peeling point's relative position and synchronous pitch, make the multi -point peeling process always keep the force symmetry and the margin consistent, compared with the device of the present relying on fixed mould or manual arrangement, this structure not only improves the peeling evenness, still can carry out the detection of peeling strength to different size's corrugated carton, thereby effectively promotes the accuracy of corrugated carton adhesion strength test, is applicable to multi -specification corrugated carton.

Description

Technical Field

[0001] This utility model relates to the field of cardboard testing technology, and in particular to an automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes. Background Technology

[0002] Corrugated cardboard boxes are made of corrugated paper, which is typically composed of multiple layers of flat and corrugated cardboard stacked and glued together. As an important packaging material widely used in transportation, packaging, and storage, its adhesive strength and peel strength are key indicators for measuring the structural integrity and damage resistance of the box. During the manufacturing process, the linerboard, core paper, and corrugated paper layers are usually bonded together using adhesives. The quality of this bonding directly affects the box's stability and load-bearing capacity during handling, stacking, and use. Therefore, precise and standardized testing of the adhesive strength and peel strength of corrugated cardboard boxes is an essential means of quality control and product development.

[0003] When testing the adhesive and peel strength of corrugated cardboard boxes, the cardboard needs to be cut to form a sample. According to the national standard GB / T 6548-2011 "Determination of Adhesive Strength of Corrugated Cardboard - Peel Method", this test method requires peeling the sample along the flute direction. Existing adhesive strength testing devices insert two sets of rods, each consisting of multiple rods, into the gap between the corrugated cardboard and the straight cardboard, respectively. Then, the two sets of rods are pulled in opposite directions, and the adhesive strength is calculated by the change in force during the peeling process. When the corrugated cardboard box model and the corrugated cardboard have different corrugation sizes, if the distance between the multiple rods is fixed, it cannot be applied to different models of corrugated cardboard boxes. If the distance between the multiple rods is not fixed, it needs to be manually adjusted step by step, which is time-consuming and labor-intensive.

[0004] Therefore, it is necessary to design an automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes to solve the above problems. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides an automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes, comprising: a plurality of movable seats, a plurality of peeling rods located between the movable seats, a driving assembly for driving the plurality of peeling rods to change their distance at equal intervals, and a pressing assembly located below the movable seats.

[0007] Several of the aforementioned movable seats are symmetrically arranged, with the drive assembly located within one of the movable seats;

[0008] The driving assembly includes a driving rod; the driving rod is rotatably installed in the inner cavity of the movable seat, and the driving rod is provided with a plurality of variable pitch guide grooves. A guide block is provided on the side of the plurality of peeling rods that contacts the driving rod. The guide block is located in the variable pitch guide groove and cooperates to drive the plurality of peeling rods to change pitch at equal intervals.

[0009] In a preferred embodiment of this utility model, the variable pitch guide groove is spiral-shaped, and several spiral-shaped variable pitch guide grooves are symmetrically arranged.

[0010] In a preferred embodiment of this utility model, the variable pitch guide groove includes: a starting part and an ending part; the distance between the starting parts of the plurality of variable pitch guide grooves is equal, and the distance between the ending parts is equal;

[0011] The distance between adjacent starting parts is n, and the distance between adjacent ending parts is xn, where x is any number.

[0012] In a preferred embodiment of the present invention, the movable seat is provided with a movable groove, and a plurality of the peeling rods slide within the movable groove.

[0013] In a preferred embodiment of the present invention, the pressing assembly includes: a plurality of bases, an electric telescopic rod located on the bases, and a plurality of pressing rods located between the bases;

[0014] Each of the aforementioned bases corresponds to one of the aforementioned movable seats, and the aforementioned pressing rods are slidably connected to the bases;

[0015] The electric telescopic rod is located on the base, the bottom of the electric telescopic rod is fixed to the base, and the output end of the electric telescopic rod is fixed to the movable seat.

[0016] In a preferred embodiment of this utility model, a plurality of suction cups are provided at the bottom of the base.

[0017] In a preferred embodiment of this utility model, a cavity is provided above the moving slot of the moving seat on the other side. A limiting plate is provided in the cavity of the moving seat. The limiting plate is slidably connected to the moving seat. A spring is fixed on the limiting plate. One end of the spring is fixed to the inner wall of the cavity of the moving seat, and the other end is fixed to the limiting plate.

[0018] In a preferred embodiment of the present invention, the limiting plate initially closes the moving groove, and the limiting plate located at the inlet position of the moving groove is chamfered.

[0019] In a preferred embodiment of this utility model, a rotating handle is provided on one side of the movable base, and the rotating handle is fixed coaxially with the movable base.

[0020] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0021] (1) This utility model provides an automatic peeling frame device for testing the adhesive strength and peel strength of corrugated boxes. By setting several peeling rods and cooperating with a drive rod with a spiral variable pitch guide groove, a synchronous peeling structure with equal and variable pitch is formed. During the rotation of the drive rod, the peeling rods can be uniformly expanded or contracted radially. Therefore, the relative position and synchronous pitch of each peeling point can be precisely controlled, so that the multi-point peeling process always maintains symmetrical force and consistent edge distance. Compared with the existing devices that rely on fixed molds or manual arrangement, this structure not only improves the peeling uniformity, but also can test the peel strength of corrugated boxes of different sizes, thereby effectively improving the accuracy of corrugated box adhesive strength testing. It is suitable for corrugated boxes of various specifications.

[0022] (2) This utility model provides an automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes. By setting a limiting plate and a spring, a peeling start position limiting structure with automatic reset function is constructed, which can effectively clamp and limit one end of the peeling rod to prevent the peeling rod from detaching.

[0023] (3) This utility model provides an automatic peeling frame device for testing the bonding strength and peel strength of corrugated cardboard boxes. It is equipped with an electric telescopic rod, a base, a pressing rod and a suction cup. The base is fixed in position by the suction cup, and the pressing rod is inserted into the flute gap of the corrugated paper to fix the position of the corrugated paper. The electric telescopic rod drives the base to move, thereby driving the movement of the flat cardboard in the corrugated paper to realize the detection of the bonding strength of the corrugated paper. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the preferred embodiment of the drive rod and the peeling rod structure.

[0027] Figure 3 This is a schematic diagram of the limiting plate structure of a preferred embodiment of the present invention;

[0028] In the diagram: 1. Movable seat; 2. Peeling rod; 3. Drive rod; 4. Variable pitch guide groove; 5. Guide block; 6. Movable groove; 7. Base; 8. Electric telescopic rod; 9. Pressing rod; 10. Suction cup; 11. Limiting plate; 12. Spring; 13. Rotating handle. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] like Figure 1 and Figure 2As shown, an automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes includes: a plurality of movable seats 1, a plurality of peeling rods 2 located between the movable seats 1, a drive assembly for driving the plurality of peeling rods 2 to change their distance at equal intervals, and a pressing assembly located below the movable seats 1.

[0034] Several movable seats 1 are symmetrically arranged, and the drive component is located in one of the movable seats 1 on one side;

[0035] The drive assembly includes: a drive rod 3; the drive rod 3 is rotatably mounted in the inner cavity of the movable seat 1, and a plurality of variable pitch guide grooves 4 are provided on the drive rod 3. A guide block 5 is provided on the side of the plurality of peeling rods 2 that contacts the drive rod 3. The guide block 5 is located in the variable pitch guide groove 4 and cooperates to drive the plurality of peeling rods 2 to change pitch at equal intervals.

[0036] The variable pitch guide groove 4 is spiral in shape, and several spiral variable pitch guide grooves 4 are symmetrically arranged.

[0037] The variable pitch guide groove 4 includes a starting part and an ending part; the distance between the starting parts of a plurality of variable pitch guide grooves 4 is equal, and the distance between the ending parts is equal;

[0038] The distance between adjacent starting parts is n, and the distance between adjacent ending parts is xn, where x is any number.

[0039] The main structure of the automatic peeling frame consists of several movable seats 1, peeling rods 2, a drive assembly, and a pressing assembly. The peeling rods 2 are positioned between symmetrically arranged movable seats 1 and are driven by the drive assembly to achieve synchronous peeling with equidistant, variable-pitch action. Simultaneously, the pressing assembly stabilizes the initial position of the corrugated cardboard to be tested. This structure achieves automated and precise control of the peeling action, improving operational efficiency and effectively avoiding problems such as the non-adjustable spacing of the peeling rods 2 and large operational errors in traditional manual testing methods. It also provides a suitable testing environment for various types of corrugated boxes.

[0040] It should be noted that the variable pitch guide groove 4 has a spiral structure and is arranged symmetrically. The spiral structure has continuous and controllable radial displacement characteristics, which enables the peeling rod 2 to stably expand or contract synchronously during the rotation of the drive rod 3, ensuring that the peeling points are evenly distributed; the symmetrical layout can maintain the overall force balance of the device and effectively prevent skewing and jamming during the peeling process.

[0041] By setting several peeling rods 2 in conjunction with a drive rod 3 having a spiral variable pitch guide groove 4, a synchronous peeling structure with equidistant variable pitch is formed. During the rotation of the drive rod 3, the peeling rods 2 can be uniformly expanded or contracted radially. Therefore, the relative position and synchronous pitch of each peeling point can be precisely controlled, so that the multi-point peeling process always maintains symmetrical force and consistent edge distance. Compared with existing devices that rely on fixed molds or manual arrangement, this structure not only improves peeling uniformity, but also enables the testing of glass strength of corrugated boxes of different sizes, thereby effectively improving the accuracy of corrugated box bonding strength testing. It is suitable for corrugated boxes of various specifications.

[0042] It should be noted that a miniature tensile and compressive sensor is installed at the peeling rod 2 position. This sensor is existing technology and will not be discussed in detail here.

[0043] In this utility model, the movable seat 1 is provided with a movable groove 6, and a plurality of peeling rods 2 slide within the movable groove 6.

[0044] In this utility model, the pressing component includes: a plurality of bases 7, an electric telescopic rod 8 located on the bases 7, and a plurality of pressing rods 9 located between the bases 7;

[0045] Several bases 7 correspond one-to-one with several movable seats 1, and several pressing rods 9 are slidably connected to the bases 7;

[0046] The electric telescopic rod 8 is located on the base 7, the bottom of the electric telescopic rod 8 is fixed to the base 7, and the output end of the electric telescopic rod 8 is fixed to the movable seat 1.

[0047] Several suction cups 10 are provided at the bottom of the base 7. The position of the pressing component is fixed by the suction cups 10 to prevent the pressing component from shifting.

[0048] When testing the peel strength of corrugated boxes, both the peeling rod 2 and the pressing rod 9 need to be inserted into the flute gap of the sample. Because the electric telescopic rod 8 drives the moving seat 1 to move upward, the pressing rod 9 remains stationary, thus fixing the corrugated box sample. By driving the electric telescopic rod 8 to move upward, the peeling rod 2 is inserted into the flute gap of the sample, thereby driving the movement of the straight cardboard in the corrugated paper, thus realizing the test of the adhesive strength of the corrugated paper.

[0049] like Figure 3 As shown in the present invention, the upper part of the moving groove 6 of the other side of the moving seat 1 is provided with a cavity. A limiting plate 11 is provided in the cavity of the moving seat 1. The limiting plate 11 is slidably connected to the moving seat 1. A spring 12 is fixed on the limiting plate 11. One end of the spring 12 is fixed to the inner wall of the cavity of the moving seat 1, and the other end is fixed to the limiting plate 11.

[0050] In the initial state, the limiting plate 11 is in contact with the moving groove 6 under the action of the spring 12. After the peeling rod 2 is inserted into the sample rib gap, the moving seat 1 with the limiting plate 11 is moved to the other end of the peeling rod 2, and the other end of the peeling rod 2 is inserted into the moving groove 6 of the moving seat 1, thereby driving the limiting plate 11 to move upward. The spring 12 is squeezed and compressed, and gives the limiting plate 11 a reaction force, so that the limiting plate 11 can press and limit the peeling rod 2 in the moving groove 6, preventing the peeling rod 2 from detaching.

[0051] In this utility model, the limiting plate 11 closes the moving groove 6 in the initial state, and the limiting plate 11 located at the inlet position of the moving groove 6 is chamfered.

[0052] The chamfered design reduces edge resistance and the risk of jamming when inserting the stripper rod 2, improving operational smoothness. Compared to a right-angled edge structure, the chamfer effectively guides the rod into the slot during quick clamping, further reducing operational intensity and improving insertion and removal efficiency.

[0053] In this utility model, a rotating handle 13 is provided on one side of the movable base 1, and the rotating handle 13 is fixed coaxially with the movable base 1.

[0054] The drive rod 3 is rotated by rotating the handle 13, which in turn causes the equidistant change between the peeling rods 2, thus making it suitable for corrugated boxes of different sizes.

[0055] When using this utility model, according to the size of the corrugated cardboard box, the drive rod 3 is rotated by rotating the handle 13, which in turn drives the equidistant change between the peeling rods 2. The peeling rods 2 and the pressing rods 9 are both inserted into the flute gap of the sample. The movable seat 1 with the limiting plate 11 is moved to the other end of the peeling rod 2, and the other end of the peeling rod 2 is inserted into the moving groove 6 of the movable seat 1. The limiting plate 11 is then driven to move upward. The spring 12 is squeezed and compressed, and a reaction force is given to the limiting plate 11, so that the limiting plate 11 can press and limit the peeling rod 2 in the moving groove 6.

[0056] The electric telescopic rod 8 is controlled to move, driving the movement of the flat cardboard in the corrugated paper. A miniature tensile and compressive sensor is installed at the position of the peeling rod 2 to detect the bonding strength of the corrugated paper.

[0057] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes, characterized in that, include: A plurality of movable seats (1), a plurality of peeling rods (2) located between the movable seats (1), a drive assembly that drives the plurality of peeling rods (2) to change pitch at equal intervals, and a pressing assembly located below the movable seats (1); Several of the aforementioned movable seats (1) are symmetrically arranged, and the drive assembly is located inside one of the movable seats (1); The driving assembly includes: a driving rod (3); the driving rod (3) is rotatably installed in the inner cavity of the movable seat (1), the driving rod (3) is provided with a plurality of variable pitch guide grooves (4), and a guide block (5) is provided on the side of the plurality of peeling rods (2) that contacts the driving rod (3), the guide block (5) is located in the variable pitch guide groove (4), and cooperates to drive the plurality of peeling rods (2) to change pitch at equal intervals.

2. The automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes according to claim 1, characterized in that: The variable pitch guide groove (4) is spiral-shaped, and several spiral variable pitch guide grooves (4) are symmetrically arranged.

3. An automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes according to claim 1, characterized in that: The variable pitch guide groove (4) includes a starting part and an ending part; the distance between the starting parts of the plurality of variable pitch guide grooves (4) is equal, and the distance between the ending parts is equal; The distance between adjacent starting parts is n, and the distance between adjacent ending parts is xn, where x is any number.

4. An automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes according to claim 1, characterized in that: The movable seat (1) is provided with a movable groove (6), and a plurality of the peeling rods (2) slide within the movable groove (6).

5. An automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes according to claim 1, characterized in that: The pressing assembly includes: a plurality of bases (7), an electric telescopic rod (8) located on the bases (7), and a plurality of pressing rods (9) located between the bases (7); Several of the bases (7) correspond one-to-one with several of the movable seats (1), and several of the pressing rods (9) are slidably connected to the bases (7); The electric telescopic rod (8) is located on the base (7), the bottom of the electric telescopic rod (8) is fixed to the base (7), and the output end of the electric telescopic rod (8) is fixed to the movable seat (1).

6. An automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes according to claim 5, characterized in that: The bottom of the base (7) is provided with several suction cups (10).

7. An automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes according to claim 1, characterized in that: On the other side, the position above the moving groove (6) of the moving seat (1) is a cavity. A limiting plate (11) is provided in the cavity of the moving seat (1). The limiting plate (11) is slidably connected to the moving seat (1). A spring (12) is fixed on the limiting plate (11). One end of the spring (12) is fixed to the inner wall of the cavity of the moving seat (1), and the other end is fixed to the limiting plate (11).

8. An automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes according to claim 7, characterized in that: The limiting plate (11) closes the moving groove (6) in the initial state, and the limiting plate (11) located at the inlet position of the moving groove (6) is chamfered.

9. An automatic peeling frame device for testing the adhesive strength and peel strength of corrugated cardboard boxes according to claim 1, characterized in that: A rotating handle (13) is provided on one side of the movable seat (1), and the rotating handle (13) is fixed coaxially with the movable seat (1).

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