Timing and constant-pressure device for bonding strength

Abstract

The utility model belongs to the technical field of bonding constant-pressure equipment, and discloses a bonding strength timing and constant-pressure device which comprises a shell, a pressure applying part and a pressure control assembly, the shell is hollow, the pressure applying part and a test piece to be pressed are located in the shell, the pressure applying part is pressed on the test piece, and the pressure control assembly is located in the shell. The pressure control assembly is arranged on the pressure applying part and connected with the shell, and the pressure control assembly is configured to adjust the pressure applying part to ascend and descend in the vertical direction so as to adjust the pressure applied to the test piece. According to the bonding strength timing and constant-pressure device, the bonded test piece to be pressed is placed in the shell, the pressing component is placed above the test piece, the pressure control assembly adjusts the pressing component to move downwards and press the pressing component on the test piece according to a preset pressure value, and after preset pressing time is kept, the pressing component is pressed on the test piece. The pressure control assembly adjusts the upward movement of the pressure applying part to complete the timed and constant-pressure bonding operation of the test piece, so that the time of pressure acting on the surface of the test piece and the accuracy of the pressure are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bonding pressure equipment, especially relates to a bonding strength timing and pressure setting device. BACKGROUND

[0002] At present, there are multiple standards related to the bonding strength of building materials on the market, and different types of products have different standards, such as JC / T907-2018, JG / T468-2015, JC / T2329-2015, JG / T24-2018, etc.

[0003] Among them, in the JC / T907-2018 and JG / T24-2018 standards, the preparation process of the bonding strength mechanical test specimen is complicated, the time and pressure of each specimen are inconsistent, and the bonding strength result is inaccurate.

[0004] Therefore, a new bonding strength timing and pressure setting device needs to be designed to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing a bonding strength timing and pressure setting device to solve the technical problem that the preparation process of the bonding strength mechanical test specimen is complicated, the time and pressure of each specimen are inconsistent, and the bonding strength result is inaccurate.

[0006] To achieve this purpose, the utility model adopts the following technical scheme:

[0007] The bonding strength timing and pressure setting device provided by the utility model comprises:

[0008] The shell is hollowly arranged;

[0009] The pressure applying part is located in the shell together with the specimen to be pressed, and the pressure applying part is pressed on the specimen;

[0010] The pressure control assembly is arranged on the pressure applying part and connected with the shell, and is configured to adjust the lifting of the pressure applying part in the vertical direction to adjust the pressure applied to the specimen.

[0011] As a preferred scheme of the bonding strength timing and pressure setting device, the shell is provided with a digital instrument, the digital instrument is electrically connected with a controller, and the controller is electrically connected with the driving part of the pressure control assembly.

[0012] As a preferred scheme of the bonding strength timing and pressure setting device, the controller is further electrically connected with a timer, and the timer is electrically connected with the digital instrument.

[0013] As a preferred solution of the bonding strength timing and pressure device, the pressure control assembly comprises:

[0014] A gear is arranged on the outside of the pressure applying part through a rotating shaft;

[0015] A rack is arranged on the inner wall of the shell, the length direction of the rack extends along the vertical direction, and the circumferential side of the gear is engaged with the tooth groove of the rack;

[0016] A driving part is arranged on the shell and the output end of the driving part is connected with the gear.

[0017] As a preferred solution of the bonding strength timing and pressure device, the gear and the rack are arranged in multiple groups in one-to-one correspondence, and the driving part is selectively connected with the gear of one of the groups.

[0018] As a preferred solution of the bonding strength timing and pressure device, the gear and the rack are arranged in four groups respectively and the four groups are arranged at equal intervals along the circumferential direction of the shell.

[0019] As a preferred solution of the bonding strength timing and pressure device, the pressure applying part comprises:

[0020] A support frame is arranged in the support frame, the top end of the support frame is arranged outside the support frame, and the gear is arranged on the support frame;

[0021] A pressure block is arranged above the support frame and is pressed on the top end of the test piece.

[0022] As a preferred solution of the bonding strength timing and pressure device, the pressure block is arranged in multiple groups and the multiple pressure blocks are arranged in a stacked manner.

[0023] As a preferred solution of the bonding strength timing and pressure device, the top end and the bottom end of the shell are arranged in an open manner.

[0024] As a preferred solution of the bonding strength timing and pressure device, the bonding strength timing and pressure device further comprises a base, the outer side of the shell is provided with a supporting leg, the shell is arranged above the base through the supporting leg, and the test piece is arranged on the upper end surface of the base.

[0025] The utility model has the advantages of:

[0026] By placing the bonded specimen to be pressurized inside the housing and positioning the pressure-applying component above the specimen, the pressure control component adjusts the downward movement of the pressure-applying component to press it onto the specimen using a preset pressure value. After maintaining the preset pressure application time, the pressure control component adjusts the upward movement of the pressure-applying component to complete the timed and pressure-controlled bonding operation of the specimen. This improves the time and accuracy of pressure applied to the specimen surface, maintains pressure after it is applied to the specimen, ensures pressure stability, reduces experimental errors, and the preset pressure value and preset pressure application time are adjustable to meet different needs, demonstrating good versatility. Attached Figure Description

[0027] Figure 1 This is a front view of the bonding strength timing and pressure setting device provided in this embodiment of the utility model;

[0028] Figure 2 This is a top view of the bonding strength timing and pressure setting device provided in this embodiment of the utility model;

[0029] Figure 3 It is along Figure 2 A cross-sectional view of the pressure block of the AA line installed on the support frame;

[0030] Figure 4 It is along Figure 2 A cross-sectional view of the pressure block of the AA line not yet installed on the support frame.

[0031] In the picture:

[0032] 1. Housing; 11. Digital display instrument;

[0033] 2. Base;

[0034] 3. Pressure-applying components; 31. Support frame; 32. Pressure-applying block;

[0035] 4. Pressure control components; 41. Gears; 42. Racks. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element mutual action relationship.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0038] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional features between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0039] In the description of the embodiment, the terms "on", "under", "right", etc. Orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0040] At present, there are many standards related to the bonding strength of building materials on the market, and different types of products correspond to different standards, such as JC / T907-2018, JG / T468-2015, JC / T2329-2015, JG / T24-2018, etc.

[0041] Among them, the material test specimen forming method is clearly indicated in the JC / T907-2018 standard.A layer of mixed interface agent is evenly coated on the 70mm*70mm*20mm mortar test piece and the 40mm*40mm*10mm mortar test piece, then they are placed opposite to each other, gently pressed, and the bonded test piece is placed horizontally, a 40mm*40mm, 1.600kg±0.015kg weight is added on the 40mm*40mm*10mm mortar test piece and kept for 30 seconds, the weight is removed, and the excess interface agent on the edge is scraped off.

[0042] The bonding strength test method is clearly indicated in the JG / T24-2018 standard. The test piece is placed in a horizontal state, coated with a uniform layer of two-component epoxy resin or other room temperature curing high strength adhesive on the surface, and a steel clamp is placed on it, and a 1kg weight is added. Carefully remove the excess adhesive around, after 24 hours, remove the weight.

[0043] During the bonding forming process, multiple test pieces are alternately formed, and the time and pressure of each test piece are inconsistent, which leads to inaccurate bonding strength results and thus errors.

[0044] To solve the above problems, in combination with Figures 1-3 The embodiment provides a bonding strength timing and pressure device, which comprises a shell 1, a pressure applying part 3 and a pressure control assembly 4. The shell 1 is hollow, the pressure applying part 3 and the test piece to be pressed are located in the shell 1, the pressure applying part 3 is pressed on the test piece, the pressure control assembly 4 is arranged on the pressure applying part 3 and connected with the shell 1, and the pressure control assembly 4 is configured to adjust the pressure applying part 3 to rise and fall in the vertical direction, so as to adjust the size of the pressure applied to the test piece.

[0045] By placing the test piece to be pressed in the shell 1 and placing the pressure applying part 3 above the test piece, the pressure control assembly 4 adjusts the pressure applying part 3 to move downward and press on the test piece through a preset pressure value. After maintaining the preset pressure time, the pressure control assembly 4 adjusts the pressure applying part 3 to move upward to complete the bonding timing and pressure operation of the test piece, improves the accuracy of the time and pressure of the pressure acting on the surface of the test piece, can maintain the pressure after the pressure is applied to the test piece, ensures the stability of the pressure, reduces the experimental error, and the preset pressure value and the preset pressure time can be adjusted to meet different needs and have good universality.

[0046] Preferably, as shown in Figure 1 and Figure 2 The shell 1 is a whole cylinder, the top end and the bottom end of the shell 1 are open, four legs are arranged on the outer periphery of the shell 1 in the circumferential direction, the other ends of the legs away from the shell 1 are supported on the ground or a table top, the base 2 located below the shell 1 is placed on the ground or the table top, and the test piece is located in the shell 1 and rests on the upper end face of the base 2.

[0047] A digital instrument 11 is arranged on the outer side of the shell 1, the digital instrument 11 is electrically connected with a controller, the controller is electrically connected with a driving part of the pressure control assembly 4, the controller is further electrically connected with a timer, and the timer is electrically connected with the digital instrument 11. The pressure value and the pressure time are preset through the digital instrument 11, and the signals are transmitted to the controller. The driving part of the pressure control assembly 4 is driven by the controller to work and control the duration of the pressure applying part 3 pressing the test piece.

[0048] AsFigure 3 As shown, the pressure control assembly 4 comprises a gear 41, a rack 42 and a driving component. The gear 41 is rotatably arranged outside the pressing component 3 by a rotating shaft. The rack 42 is arranged on the inner wall of the shell 1, and the length direction of the rack 42 extends along the vertical direction. The circumferential side of the gear 41 is engaged with the tooth groove of the rack 42. The driving component is arranged in the shell 1, and the output end thereof is connected with the gear 41 by embedding a bearing on the inner wall of the shell 1. The driving component drives the gear 41 to rotate forward, and the gear 41 moves upward along the vertical direction under the engagement of the rack 42. The driving component drives the gear 41 to rotate reversely, and the gear 41 moves downward. In this way, the lifting of the pressing component 3 is adjusted, and the structure is simple and can be finely adjusted.

[0049] In the embodiment, the driving component is preferably a driving motor, which has the advantages of high efficiency, high response speed and simple structure.

[0050] Preferably, the rack 42 comprises a first rack part and a second rack part, which are arranged in the horizontal direction with an interval, and the interval is matched with the diameter of the gear 41. The tooth groove of the first rack part and the tooth groove of the second rack part are oppositely arranged, and the circumferential side of the gear 41 is engaged with the tooth groove of the first rack part and the tooth groove of the second rack part. The lifting movement of the gear 41 has a certain guiding property, which ensures the stability of displacement.

[0051] Further, the gear 41 and the rack 42 are arranged in multiple groups one by one, and the driving component is selectively connected with the gear 41 of one group. For example, the gear 41 and the rack 42 are arranged in four groups, and the four groups are arranged at equal intervals along the circumferential direction of the shell 1, which further ensures the stability of the lifting process. Other embodiments can also be arranged in two groups, three groups, five groups or more groups, which are not limited in the embodiment.

[0052] Optionally, the pressure control assembly 4 in other embodiments can also be a linear module, a lifting cylinder or the like, which can realize the lifting operation of the pressing component 3, and is not limited in detail.

[0053] Continuing to refer to Figure 3The pressure applying part 3 comprises a support frame 31 and a pressure block 32, the gear 41 is rotatably arranged on the support frame 31, the test piece is arranged in the support frame 31 and the top end part of the test piece is arranged outside the support frame 31, and the pressure block 32 is arranged above the support frame 31 and is pressed on the top end of the test piece. The rotation of the gear 41 drives the support frame 31 to move upwards, the support frame 31 is in contact with the pressure block 32 and supports the weight of part of the pressure block 32, so as to reduce the pressure of the pressure block 32 pressed on the test piece, on the contrary, the rotation of the gear 41 drives the support frame 31 to move downwards, the force supported by the support frame 31 gradually acts on the test piece, so as to increase the pressure of the pressure block 32 pressed on the test piece, so as to realize the accurate adjustment of the pressure.

[0054] In other embodiments, the pressure block 32 is provided with a plurality of pressure blocks 32, and the plurality of pressure blocks 32 are stacked, and the specific number can be selected according to the requirements.

[0055] Exemplarily, taking the operation of the adhesive strength timing and pressure device provided by the embodiment by using the JC / T907-2018 standard as an example for description:

[0056] Firstly, the test piece is horizontally arranged on the base 2; the preset pressure value is set by the digital display instrument 11, that is, the weight of 1.6kg±0.015kg is applied to the test piece; the preset pressure time is set, that is, 30 seconds are kept;

[0057] Then, the button is started, the controller sends a signal to the driving part, the driving part drives the gear 41 to rotate, so as to adjust the support frame 31 and the pressure block 32 to move downwards, when the pressure applying part 3 reaches the preset pressure value and is stable, the timer starts 30 seconds countdown;

[0058] Finally, the countdown is over, the driving part is adjusted to rotate again, so as to adjust the support frame 31 to move upwards, and the support frame 31 supports the pressure block 32 to move upwards synchronously to leave the surface of the test piece, so as to complete the timing and pressure of the test piece.

[0059] Obviously, the above embodiments of the utility model are only examples for clearly describing the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A timed and pressure-controlled device for bonding strength, characterized in that, include: The housing (1) is hollow; A pressure-applying component (3) and the test specimen to be pressured are located inside the housing (1), and the pressure-applying component (3) presses against the test specimen; A pressure control component (4) is disposed on the pressure application component (3) and connected to the housing (1). The pressure control component (4) is configured to adjust the pressure application component (3) in the vertical direction to adjust the magnitude of the pressure applied to the specimen.

2. The bonding strength timing and pressure control device according to claim 1, characterized in that, A digital display instrument (11) is provided on the housing (1), and the digital display instrument (11) is electrically connected to a controller, which is electrically connected to the drive component of the pressure control assembly (4).

3. The bonding strength timing and pressure control device according to claim 2, characterized in that, The controller is also electrically connected to a timer, which is electrically connected to the digital display instrument (11).

4. The bonding strength timing and pressure control device according to any one of claims 1-3, characterized in that, The pressure control component (4) includes: Gear (41), which is rotatably disposed on the outside of the pressure-applying component (3) via a rotating shaft; A rack (42) is disposed on the inner wall of the housing (1). The length direction of the rack (42) extends in the vertical direction. The circumference of the gear (41) meshes with the tooth groove of the rack (42). A drive component is disposed in the housing (1) and its output end is connected to the gear (41).

5. The bonding strength timing and pressure control device according to claim 4, characterized in that, The gears (41) and racks (42) are provided in multiple sets in a one-to-one correspondence, and the drive component is selectively connected to one set of gears (41).

6. The bonding strength timing and pressure control device according to claim 5, characterized in that, The gear (41) and the rack (42) are respectively provided in four sets, and the four sets are arranged at equal intervals along the circumference of the housing (1).

7. The bonding strength timing and pressure control device according to claim 4, characterized in that, The pressure-applying component (3) includes: The test specimen is placed inside the support frame (31) and its top part extends out of the support frame (31). The gear (41) is rotatably mounted on the support frame (31). A pressure block (32) is located above the support frame (31) and presses against the top of the specimen.

8. The bonding strength timing and pressure control device according to claim 7, characterized in that, Multiple pressure blocks (32) are provided, and multiple pressure blocks (32) are stacked.

9. The bonding strength timing and pressure control device according to any one of claims 1-3, characterized in that, The top and bottom of the shell (1) are open.

10. The bonding strength timing and pressure control device according to claim 9, characterized in that, The bonding strength timing and pressure device also includes a base (2), and the outer side of the housing (1) is provided with a support leg. The housing (1) is set above the base (2) through the support leg, and the specimen is placed on the upper end surface of the base (2).

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