Fixing device for detecting bonding strength of artificial board

Abstract

The utility model discloses a fixing device for detecting the bonding strength of an artificial board, which particularly belongs to the technical field of determination of the bonding strength of the artificial board and comprises a workbench, the artificial board, a fixing mechanism for fixing the artificial board and a lifting mechanism, the number of the fixing mechanisms is two, and each fixing mechanism comprises a mounting fixing base, a connecting fixing base, a locking bolt set and a limiting rod. The mounting and fixing base is detachably mounted on the workbench, and the lower end of the connecting and fixing base and the mounting and fixing base are locked and fixed through a locking bolt group; limiting holes allowing the limiting rods to penetrate through are correspondingly formed in the two sides of the connecting and fixing base, and holes allowing the limiting rods to penetrate through are formed in the ends of the artificial board. The lifting mechanism is in transmission connection with the fixing mechanism at the upper end. The utility model aims to provide the detection fixing device for the bonding strength of the artificial board, and the detection fixing device has the advantages that the fixing effect on the end part of the artificial board is good, and the artificial board is prevented from falling off and splashing to injure workers in the use process.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring the bonding strength of artificial boards, and particularly relates to a device for detecting and fixing the bonding strength of artificial boards. Background Art

[0002] GB / T 17657-2022, "Test Methods for Physical and Chemical Properties of Wood-Based Panels and Faced Wood-Based Panels," describes a method for determining the bond strength of single-board wood-based panels: This method involves applying a tensile load to the test piece, causing shear failure in the adhesive layer. Specifically, the test piece is placed in the movable fixture of a testing machine, clamped at both ends to align the specimen, with the center of the specimen aligned with the axis of the fixture. The distance between the clamping point and the specimen notch should be within 5 mm.

[0003] Spring-type clamps are commonly used in laboratories. They use the elasticity of the spring to control the distance between the upper and lower clamps and implement fixation. However, spring-type clamps have a disadvantage: the ends of the artificial board are easily detached during the tensioning process. Utility Model Content

[0004] The utility model aims to provide a device for detecting and fixing the bonding strength of artificial boards, which has the advantages of good fixing effect on the ends of artificial boards and preventing artificial boards from falling off and splashing to injure workers during use.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A device for detecting and fixing the gluing strength of an artificial board comprises a workbench, an artificial board, a fixing mechanism for fixing the artificial board, and a lifting mechanism; there are two fixing mechanisms, and each fixing mechanism comprises: an installation fixing base, a connecting fixing base, a locking bolt group, and a limit rod; the installation fixing base is detachably mounted on the workbench, and the lower end of the connecting fixing base is locked and fixed to the installation fixing base by the locking bolt group; limiting holes for the limiting rod to pass through are correspondingly provided on both sides of the connecting fixing base, and a hole for the limiting rod to pass through is provided at the end of the artificial board; the lifting mechanism is transmission-connected to the fixing mechanism at the upper end.

[0007] Working principle and advantages of the fixing mechanism:

[0008] The main function of the fixing mechanism is to fix the two ends of the artificial board to be tested, so as to facilitate the application of tensile load to it and thus achieve the purpose of testing its bonding strength. When in use, the artificial board can be pre-opened with a hole for the limit rod to pass through. After the limit rod passes through the limit holes on both sides of the connecting bracket and the hole in the artificial board, one end of the artificial board is fixed. Similarly, the other side of the artificial board can also be fixed in this way. Figure 1It can be seen that a notch is pre - reserved on the wood - based panel. This device is used to test the gluing strength between two boards, and the treatment of the test samples is elaborated in detail in the test standard. At the same time, the installation and fixing base is detachably arranged with the workbench 3, which facilitates its disassembly, cleaning and maintenance.

[0009] Preferably, the upper end of the installation and fixing base is provided with fixing columns. The locking bolt group includes a bolt rod, a pressing piece and a limiting piece; a through - threaded hole is provided on the side end of the fixing column, and threaded holes corresponding to the threaded holes are provided on both sides of the lower end of the connecting fixing seat. The bolt rod is screwed through the threaded hole and the threaded hole, the limiting piece abuts against the side end of the connecting fixing seat, and the pressing piece is screwed into the free end of the bolt rod and then abuts against the side end of the connecting fixing seat.

[0010] The working principle of the locking bolt group:

[0011] The function of the locking bolt group is to fix the bottom end of the connecting fixing seat. When the bolt rod passes through the threaded holes on both sides of the connecting fixing seat and then through the threaded hole of the fixing column, and then the pressing piece is rotated, the pressing piece abuts against the side wall of the connecting fixing seat, thus realizing the fixation of the connecting fixing seat. Fixed in this way, the connecting fixing seat can be in a straight state, avoiding its skew.

[0012] Preferably, the fixing mechanism further includes a tightening block. The tightening block is provided with a through - hole adapted to the limiting rod passing through it, and the tightening block is fixedly clamped between the wood - based panel and the connecting fixing seat.

[0013] The function of the tightening block:

[0014] The tightening block has two functions: 1. It is used to position the wood - based panel to prevent it from sliding during the tension process; 2. It is used to adjust the orientation of the wood - based panel so that the upper and lower ends of the wood - based panel are both in a straight line, which is convenient for applying tensile load to the wood - based panel.

[0015] Preferably, the lifting mechanism includes a slide - rail plate and a fixing plate. The upper fixing mechanism is fixed to the fixing plate. The number of slide - rail plates is two, and both ends of the fixing plate are slidably connected to the two slide - rail plates.

[0016] The function of the lifting mechanism:

[0017] The function of the lifting mechanism is to apply tension to the upper end of the wood - based panel 4, so as to test the gluing strength of the wood - based panel.

[0018] Preferably, the lifting mechanism further includes a cylinder. The output end of the cylinder is fixed to the end of the fixing plate. By applying a thrust to the fixing plate through the cylinder, it is transmitted to the upper end of the wood - based panel, playing a role in lifting it.

[0019] Preferably, the installation and fixing base and the workbench are locked and fixed by bolts.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] 1. The fixing effect is good, which can prevent the end of the artificial board from shifting or falling off when receiving tension, thus affecting the progress of the experiment.

[0022] 2. The artificial board is easy to install, which can save the time of experimental testing to a greater extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural view of a detection and fixing device for the bonding strength of an artificial board;

[0024] Figure 2 It is a schematic structural view (front) of the fixing mechanism;

[0025] Figure 3 It is a schematic structural view (back) of the fixing mechanism.

[0026] In the figure: 1. Slide rail plate, 2. Fixed plate, 3. Workbench, 4. Artificial board, 5. Tightening block, 6. Connecting and fixing seat, 7. Limit rod, 8. Limit hole, 9. Tightening piece, 10. Fixed column, 11. Installation and fixing base, 12. Limit piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment

[0029] On the basis of the above description, this embodiment further makes the following supplementary description from the application perspective:

[0030] A detection and fixing device for the bonding strength of an artificial board, comprising:

[0031] Workbench 3;

[0032] Artificial board 4;

[0033] Fixing mechanism;

[0034] Among them, the fixing mechanism includes an installation and fixing base 11, a connecting and fixing seat 6, a tightening block 5, a locking bolt group and a limit rod 7, and the locking bolt group includes a bolt rod, a tightening piece 9 and a limit piece 12;

[0035] Lifting mechanism;

[0036] The lifting mechanism includes a slide rail plate 1, a fixing plate 2 and a cylinder.

[0037] This embodiment discloses an example of a 7-layer plywood specimen: the shear length l1 = (25 ± 0.5) mm; the shear width (specimen width) b1 = (25 ± 1) mm; the saw kerf width b2 = 2.5 mm - 4 mm; the thickness = the thickness of the board.

Claims

1. A device for detecting and fixing the bonding strength of artificial boards, comprising a workbench (3) and an artificial board (4), characterized in that: It also includes a fixing mechanism and a lifting mechanism for fixing the artificial board; There are two fixing mechanisms, each of which comprises: a mounting fixing base (11), a connecting fixing base (6), a locking bolt group and a limiting rod (7); The mounting fixing base (11) is detachably mounted on the workbench (3), and the lower end of the connecting fixing seat (6) is locked and fixed to the mounting fixing base (11) by a locking bolt assembly; Limiting holes (8) for the adapting limiting rod (7) to pass through are correspondingly provided on both sides of the connecting fixing seat (6), and a hole for the adapting limiting rod (7) to pass through is provided at the end of the artificial board (4); The lifting mechanism is transmission-connected with the fixing mechanism at the upper end.

2. A device for detecting and fixing the bonding strength of artificial boards according to claim 1, characterized in that: A fixing column (10) is provided at the upper end of the mounting fixing base (11), and a locking bolt assembly includes a bolt rod, a tightening plate (9) and a limiting plate (12); The side end of the fixing column (10) is provided with a threaded hole passing through, and screw holes corresponding to the threaded holes are provided on both sides of the lower end of the connecting fixing seat (6). The bolt rod is threaded through the threaded hole and the screw hole, and the limiting piece (12) is tightly pressed against the side end of the connecting fixing seat (6). After the pressing piece (9) is screwed into the free end of the bolt rod, it is tightly pressed against the side end of the connecting fixing seat (6).

3. The device for detecting and fixing the bonding strength of artificial boards according to claim 1, characterized in that: The fixing mechanism further comprises a tightening block (5), wherein the tightening block (5) is provided with a through hole through which the adapting limit rod (7) passes, and the tightening block (5) is fixedly clamped between the artificial board (4) and the connecting fixing seat (6).

4. The device for detecting and fixing the bonding strength of artificial boards according to claim 1, characterized in that: The lifting mechanism comprises a slide plate (1) and a fixed plate (2), the fixed mechanism mentioned above is fixed to the fixed plate (2), there are two slide plates (1), and both ends of the fixed plate (2) are slidably connected to the two slide plates (1).

5. The device for detecting and fixing the bonding strength of artificial boards according to claim 4, characterized in that: The lifting mechanism also includes a cylinder, the output end of which is fixed to the end of the fixed plate (2).

6. The device for detecting and fixing the bonding strength of artificial boards according to claim 1, characterized in that: The fixing base (11) and the workbench (3) are fixed by bolts.

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