Sample preparation device for coiled material seam stripping sample

Abstract

The utility model relates to a sample preparation device for a coiled material seam stripping sample, and belongs to the field of coiled material performance test sample preparation, the sample preparation device comprises a warming structure, oppositely arranged compression roller structures and a movable clamp, an axial accommodating area is arranged between the oppositely arranged compression roller structures, the warming structure is internally provided with a space for accommodating a flaming device, and the movable clamp is arranged in the space. The side wall of the warming structure comprises two channels which are hollow and symmetrically arranged in a conical shape, flaming outlets are formed in the tail ends of the inner edges of the channels, the channels are used for containing two coiled material samples to be spliced, and the front ends of the coiled material samples penetrate through the axial containing area and are clamped by the clamp. According to the sample preparation device, the heating uniformity and the pressing degree controllability of the prepared coiled material seam stripping sample can be improved, so that the test uniformity and stability of the prepared sample are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sample preparation for performance testing of a roll material, and in particular to a sample preparation device for a roll material joint peeling sample. BACKGROUND

[0002] For building waterproofing roll materials, relevant national standards specify specific performance evaluation indicators, such as the important indicator of joint peeling strength. However, although the national standards specify the joint peeling strength, they do not limit the preparation process of the roll material joint peeling sample.

[0003] The inventors found in research and development that the related art has the following technical problems: due to different sample preparation processes, differences in the degree of human involvement, etc., the preparation temperature and the pressing degree of the roll material joint peeling sample obtained will have large differences, resulting in uneven heating of the final obtained test sample, and large fluctuations in the corresponding test performance. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the test uniformity and stability of the prepared sample, the present application provides a sample preparation device for a roll material joint peeling sample.

[0005] The sample preparation device for a roll material joint peeling sample provided by the embodiments of the present application adopts the following technical solutions:

[0006] A sample preparation device for a roll material joint peeling sample, comprising: a baking fire structure, oppositely arranged pressure roller structures, and a movable clamp, the oppositely arranged pressure roller structures having an axial accommodation area between them, the baking fire structure having a space inside for accommodating a fire spraying device, the side wall of the baking fire structure comprising two channels that are hollow and symmetrically arranged in a conical shape, and the inner edge ends of the channels forming a fire spraying outlet, the channels being used to accommodate two roll material samples to be spliced, and the front ends of the roll material samples passing through the axial accommodation area and being clamped by the clamp.

[0007] In some embodiments, the fire spraying device comprises a spray gun, the axial direction of the spray gun being equal to the included angle formed by each of the two channels, and the included angle being any angle between 20° and 80°, including the end point value.

[0008] In some embodiments, the pressure roller structure is used to controllably press the joint part of any two roll material samples in the axial accommodation area; the pressure roller structure comprises: a first support structure, oppositely arranged first and second pressure rollers with adjustable spacing, the first support structure having a first sliding groove distributed along the vertical direction, the first pressure roller being provided with a first assembly shaft, the first assembly shaft being assembled with the first sliding groove and being able to slide up and down along the first sliding groove and being locked and fixed at a predetermined position.

[0009] In some embodiments, the pressing roller structure further comprises a second supporting structure, the second supporting structure is provided with a T-shaped sliding groove, the T-shaped sliding groove comprises a second sliding groove distributed along a vertical direction and a third sliding groove penetrating through the second sliding groove and distributed along a horizontal direction, the second sliding groove is arranged opposite to the first sliding groove; the second pressing roller is provided with a second assembly shaft, the second assembly shaft is assembled with the T-shaped sliding groove and can slide left and right along the third sliding groove, slide up and down along the second sliding groove and be locked and fixed at a preset position; when the sample preparation device is in an idle state, the second pressing roller is in a suspended state by being assembled with the third sliding groove; when the sample preparation device is in a sample preparation state, the second pressing roller adjusts the distance between the first pressing roller by being assembled with the second sliding groove.

[0010] In some embodiments, when the sample preparation device is in a sample preparation state, the distance between the second pressing roller and the first pressing roller is set to be a preset proportion of the sum of the thicknesses of the two roll samples, and the preset proportion is 85% to 100%.

[0011] In some embodiments, the clamp comprises a clamping part, the clamping part is provided with an assembly moving part, the assembly moving part is provided with a track inside, and the assembly moving part moves along the track under the driving action and drives the clamping part to move synchronously.

[0012] In some embodiments, the track is marked with a scale, the track is provided with a movable limiting part penetrating through, and the movable limiting part can be fixed and locked at a set position based on the scale, the set position is related to the pressing length of the roll sample.

[0013] In some embodiments, the side wall of the heating structure is a high-temperature-resistant structure that can withstand the corresponding flame temperature of the flame device.

[0014] In some embodiments, the sample preparation device further comprises oppositely arranged positioning roller structures, the positioning roller structures and the pressing roller structures are spaced apart along a horizontal direction; the positioning roller structures and the pressing roller structures together form the axial accommodation area along an axial direction; the positioning roller structures comprise two oppositely arranged positioning rollers, one of the following conditions is met: one positioning roller is fixed in position, and the other positioning roller is movable along a vertical direction; or, both positioning rollers are movable along the vertical direction. Among them, the positioning rollers and the pressing rollers opposite to each other in the positioning roller structures and the pressing roller structures are used for positioning the front ends of the two roll samples in an extension surface; the moving direction of the clamp is parallel to the extension surface.

[0015] In some embodiments, the movable positioning roller in the above positioning roller structure is in the following structural form: the movable positioning roller is provided with a third assembly shaft, the third assembly shaft is assembled with a fourth sliding groove distributed along the vertical direction on the third support structure and can slide up and down along the fourth sliding groove and be locked and fixed at a preset position.

[0016] In summary, the technical scheme provided by the embodiments of the present application has at least one of the following beneficial technical effects:

[0017] (1) By setting the roasting structure, two roll samples are placed in the two channels symmetrically arranged in the inner wall of the roasting structure, and the front end overlap of the two roll samples passes through the fire outlet, and the roasting is performed by the fire spraying device arranged in the inner accommodating space of the roasting structure. Since the two channels of the roasting structure are symmetrically arranged in a conical shape, the roasting degree of the two roll samples by the fire spraying device is equivalent, and the heating is uniform. At the same time, the front end overlap of the two roll samples is heated and diffused after roasting, and the front end of the two roll samples forms a joint surface, and the relative pressure roller structure is used for controllable tight pressing treatment, which improves the joint strength of the joint surface and also improves the uniformity of the stress of the joint surface during sample preparation. At the same time, with the movement of the clamp, the length of the joint part of the two roll samples gradually increases, and the remaining part is still in a separated state along the two channels, which meets the required sample preparation requirements. This sample preparation device can improve the uniformity of heating and the controllability of pressing degree of the prepared roll seam peeling sample, thereby effectively improving the test uniformity and stability of the prepared sample.

[0018] (2) The axial direction of the spray gun is equal to the included angle formed by the two channels, and the included angle is any angle between 20° and 80°. Different angles correspond to the replacement of the roasting structure or the adjustment of the taper angle of the waterproof structure itself. Under the condition that the distance between the spray gun and the fire outlet is the same, different angles correspond to differences in roasting concentration and roasting temperature, so that the sample preparation device can adapt to the sample preparation temperature conditions of waterproof rolls of various materials and various thicknesses, and improve the applicability in different scenarios.

[0019] (3) By setting the first assembly shaft on the first pressure roller, the first assembly shaft is assembled with the first sliding groove provided on the first support structure and can slide up and down along the first sliding groove and be locked and fixed at a preset position, so as to adjust the distance between the first pressure roller and the second pressure roller, thereby controlling the pressure on the joint part of any two roll samples in the axial accommodating area.

[0020] (4) By setting the second support structure with a T-shaped sliding groove, when the sample preparation device is in an idle state, the second compression roller is suspended by assembling with the third sliding groove distributed along the horizontal direction in the T-shaped sliding groove; when the sample preparation device is in a sample preparation state, the second compression roller adjusts the distance between the first compression roller by assembling with the second sliding groove distributed along the vertical direction in the T-shaped sliding groove, and only needs to slide along the T-shaped sliding groove to switch from the suspended state to the sample preparation state, which is convenient and can quickly realize controllable pressing on the joint part of any two roll sample in the axial containing area based on the distance between the second compression roller and the first compression roller.

[0021] (5) Since the track is marked with a scale and a movable limiting piece is provided through the track, the movable limiting piece can be fixed and locked at a set position based on the scale, and when different roll samples are prepared, the movable limiting piece can be fixed and locked at the corresponding set position according to the pressing length, so that during sample preparation, the limiting of the farthest distance of the clamp movement can be realized based on the movable limiting piece, thereby realizing automatic and accurate control of the sample preparation pressing length.

[0022] (6) By setting the positioning roller structure, the positioning roller and the compression roller on the opposite side of the compression roller structure are used to position the front end of the two roll samples; the moving direction of the clamp is parallel to the extension surface, so that no additional vertical force is generated during the movement of the front end of the two roll samples, and only the smooth pressing force is applied by the compression roller structure, thereby ensuring the stability of sample preparation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of a roll joint peeling sample preparation device provided by an embodiment of the present application.

[0024] Figure 2 is a structural schematic view of a roll joint peeling sample preparation device provided by another embodiment of the present application in an idle state.

[0025] Figure 3 is a structural schematic view of a roll joint peeling sample preparation device provided by another embodiment of the present application in a sample preparation state.

[0026] Figure 4 is a structural schematic view of a roll joint peeling sample preparation device provided by another embodiment of the present application.

[0027] Figure 5A is a state schematic view of two roll samples to be spliced in the two channels of the oven structure when starting sample preparation in an idle state of a roll joint peeling sample preparation device provided by an embodiment of the present application.

[0028] Figure 5B FIG. 6 is a schematic view of a state of a sample preparation device for a web seam peel sample in a sample preparation state, in which the front ends of two web samples are held by a movable clamp, baked by a fire outlet, positioned by a positioning roller and a pressing roller, and pressed by the pressing roller.

[0029] Figure 5C FIG. 7 is a schematic view of a state of a sample preparation device for a web seam peel sample in a sample preparation state, in which the clamp with the joint of the two web samples is moved and positioned by a movable positioning roller to realize automatic and accurate control of the sample preparation pressing length.

[0030] KEY:

[0031] 1 - sample preparation device

[0032] 101 - axial accommodation area

[0033] 11 - baking fire structure

[0034] 111 - channel; 112 - fire outlet

[0035] 13 - pressing roller structure

[0036] 130 - first support structure; 1301 - first sliding groove

[0037] 131 - first pressing roller; 1311 - first assembly shaft

[0038] 132 - second support structure; 1321 - T-shaped sliding groove

[0039] 133 - second pressing roller; 1331 - second assembly shaft

[0040] 15 - movable clamp

[0041] 151 - clamping part; 1511 - assembly moving part

[0042] 152 - track; 153 - movable limiting part

[0043] 12 - positioning roller structure

[0044] 120 - third support structure; 1201 - fourth sliding groove

[0045] 121 - fixed positioning roller

[0046] 122 - movable positioning roller; 1221 - third assembly shaft

[0047] 14 - fire spraying device

[0048] 141 - Ignition source; 142 - Spray gun;

[0049] 143-Flame monitoring agency. Detailed Implementation

[0050] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0051] 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.

[0052] This application provides a sample preparation device for seam peeling samples of waterproof membranes. This sample preparation device can be used to prepare seam peeling samples of various types of waterproof membranes, such as, but not limited to, seam peeling samples of asphalt waterproof membranes, polymer-modified asphalt waterproof membranes, and synthetic polymer waterproof membranes.

[0053] Figure 1 This is a schematic diagram of the sample preparation device for a roll seam peeling sample provided in one embodiment of this application.

[0054] Reference Figure 1 As shown, a sample preparation device 1 for a roll material seam peeling sample according to an embodiment includes: a heating structure 11, opposing pressure roller structures 13, and a movable clamp 15. The opposing pressure roller structures 13 have an axial accommodating area 101 between them. Figure 1 The axial accommodating area 101 is indicated by a dashed box. The heating structure 11 has a space inside for accommodating the flame-spraying device 14. The side wall of the heating structure 11 includes two hollow, cone-shaped, symmetrically arranged channels 111, with flame-spraying outlets 112 formed at the inner edges of the channels. The channels 111 are used to accommodate two roll samples to be spliced, and the front ends of the roll samples pass through the axial accommodating area 101 and are held by the clamps 15.

[0055] In some embodiments, the sidewalls of the heating structure 11 are made of high-temperature resistant material or a high-temperature resistant coating, capable of withstanding the flame temperature corresponding to the flame-spraying device 14. That is, the roll samples located in the two channels of the sidewall are protected by the sidewall, while the overlapping ends of the two roll samples at the flame outlet 112 are heated. The flame-spraying device 14 includes: a fire source 141; a spray gun 142 connected to the fire source 141 via a passage; and a flame-spraying monitoring mechanism 143 disposed on the passage. In some embodiments, the fire source 141 is a gas source, and the spray gun 142 is a windproof combustion head. The flame-spraying monitoring mechanism 143 regulates the gas flow rate by monitoring the gas pressure.

[0056] The aforementioned pressure roller structure 13 is used to apply controllable pressure to the joint portion of any two roll samples within the aforementioned axial accommodating region 101. The aforementioned clamp 15 is movable. Figure 1 The dashed arrows also indicate the direction of movement of the clamp 15.

[0057] The sample preparation process based on the sample preparation device of this embodiment is exemplified as follows: Two roll samples are placed in the two channels 111 of the heating structure 11, and when the overlapping front ends of the two roll samples pass through the flame outlet 112, they are heated by the flame device 14. Since the two channels 111 of the heating structure are arranged in a conical symmetrical manner, the flame emitted by the flame device 14 heats the two roll samples to a similar degree, resulting in uniform heating. At the same time, after the overlapping front ends of the two roll samples are heated, thermal melting and interface diffusion occur, and a joint surface is formed at the front ends of the two roll samples. At the same time, the pressure roller structure 13, which is arranged opposite to each other, performs a tight pressing process to improve the joint strength of the joint surface. Since the pressure roller structure performs a pressing process on each sample, it can also improve the uniformity of the joint force during the sample preparation process. Meanwhile, as the clamp moves, the length of the joint part of the two roll samples gradually increases, while the remaining part remains separated along the channel, achieving the required sample preparation requirements. This sample preparation device 1 can improve the heating uniformity and compressibility of the prepared roll seam peeling sample, thereby effectively improving the test uniformity and stability of the prepared sample.

[0058] In some embodiments, refer to Figure 1 As shown, the flame-spraying device 14 includes a spray gun 142. The axial direction of the spray gun 142 is equal to the angle formed by the two channels 111, that is, the spray gun 142 is placed on the central axis corresponding to the two channels. In some embodiments, the included angle is any angle between 20° and 80°, including the endpoint value.

[0059] The axial direction of the spray gun 142 forms an angle equal to that of the two channels 111, and the angle is any angle between 20° and 80°. Different angles correspond to the replacement of the heating structure or the adjustable cone angle of the waterproof structure itself. Under the condition that the distance between the spray gun and the spray outlet is the same, different angles correspond to differences in heating concentration and heating temperature, so that the sample preparation device 1 can be adapted to the sample preparation temperature conditions of waterproof membranes of various materials and thicknesses, thereby improving the applicability of different scenarios.

[0060] In some embodiments, the pressure roller structure 13 is used to apply controllable pressure to the joint portion of any two roll samples within the axial accommodating region 101. The following is in conjunction with... Figure 1 , Figure 2 and Figure 3 To describe the possible implementation structures of the pressure roller structure 13.

[0061] Reference Figure 1 As shown, in some embodiments, the pressure roller structure 13 includes: a first support structure 130, a first pressure roller 131 and a second pressure roller 133 that are arranged opposite each other and whose spacing is adjustable.

[0062] The first support structure 130 has a first slide groove 1301 distributed along the vertical direction, and the first pressure roller 131 is provided with a first assembly shaft 1311. The first assembly shaft 1311 is assembled with the first slide groove 1301 and can slide up and down along the first slide groove 1301 and be locked and fixed in a preset position.

[0063] In this embodiment, the second pressure roller 133 can be configured as a fixed pressure roller. The distance between the first pressure roller 131 and the second pressure roller 133 is adjusted by adjusting the vertical position of the first pressure roller 131, thereby controlling the pressing force between the first pressure roller 131 and the second pressure roller 133. In this embodiment, the first pressure roller 131 and the second pressure roller 133 are arranged opposite to each other, and their respective vertical positions are not limited. Figure 1 In the example, the first pressure roller 131 is located below and the second pressure roller 133 is located above; in reality, their positions can be interchanged.

[0064] In this embodiment, by providing a first assembly shaft 1311 on the first pressure roller 131, the first assembly shaft 1311 is assembled with a first slide groove 1301 provided on the first support structure 130 and can slide up and down along the first slide groove 1301 and be locked and fixed in a preset position, thereby realizing that the distance between the first pressure roller 131 and the second pressure roller 133 is adjustable, thereby enabling controllable pressure to be applied to the joint portion of any two roll samples in the axial accommodating area 101.

[0065] In other embodiments, reference is made to Figure 2 and Figure 3As shown in the drawings, the above-mentioned compression roller structure 13, in addition to the aforementioned first support structure 130, the first compression roller 131 and the second compression roller 133 which are oppositely arranged and have adjustable spacing, further comprises a second support structure 132.

[0066] In the compression roller structure in the present embodiment, the oppositely arranged first compression roller and the second compression roller are both capable of position adjustment along the vertical direction, and the compression roller located at the upper side (for example, the second compression roller 133) is further capable of achieving a suspended state by assembly with the T-shaped sliding slot.

[0067] In the present embodiment, with reference to Figure 2 and Figure 3 As shown in the drawings, the second support structure 132 has a T-shaped sliding slot 1321, and the T-shaped sliding slot 1321 comprises a second sliding slot distributed along the vertical direction and a third sliding slot penetrating through the second sliding slot and distributed along the horizontal direction. The second sliding slot is oppositely arranged with the first sliding slot 1301. The second compression roller 133 is provided with a second assembly shaft 1331, and the second assembly shaft 1331 is assembled with the T-shaped sliding slot 1321 and is capable of sliding left and right along the third sliding slot, sliding up and down along the second sliding slot and being locked and fixed at a preset position.

[0068] With reference to Figure 2 As shown in the drawings, when the sample preparation device 1 is in an idle state, the second compression roller 133 is in a suspended state by assembly with the third sliding slot distributed along the horizontal direction in the T-shaped sliding slot 1321.

[0069] With reference to Figure 3 As shown in the drawings, when the sample preparation device 1 is in a sample preparation state, the second compression roller 133 adjusts the spacing with the first compression roller 131 by assembly with the second sliding slot distributed along the vertical direction in the T-shaped sliding slot 1321.

[0070] By combining Figure 2 and Figure 3It can be understood that in the embodiment, the first pressure roller and the second pressure roller are both movable structures. When the sample preparation device 1 is in an idle state, the second pressure roller 133 is in a suspended state by being assembled with a third sliding groove distributed along a horizontal direction in the T-shaped sliding groove 1321. When the sample preparation device 1 is in a sample preparation state, the second pressure roller 133 is moved to a second sliding groove along the third sliding groove through a second assembly shaft 1331. The second pressure roller 133 adjusts the distance between the first pressure roller 131 by being assembled with the second sliding groove. The state switching is convenient and can quickly realize controllable pressure on the joint part of any two roll sample in the axial containing area based on the weight of the upper pressure roller (corresponding to the second pressure roller 133) and the distance between the lower pressure roller (corresponding to the first pressure roller 131).

[0071] It should be noted that in the embodiment, although the first pressure roller 131 is located below and the second pressure roller 133 is located above in the Figure 2 , in fact, the positions of the two can be exchanged. Correspondingly, the support structure matched with the pressure roller can also be exchanged or not.

[0072] In some embodiments, the adjustment of the pressure can be realized by replacing the weight of the upper pressure roller in the pressure roller structure, which is convenient and fast. The detailed structure of the pressure roller includes a cylindrical body, an assembly shaft axially extending from both sides of the body, and an axle part for moving in the corresponding sliding groove (such as a T-shaped sliding groove or a first sliding groove) and a locking part for locking at the end.

[0073] In some embodiments, when the sample preparation device 1 is in a sample preparation state, the distance between the second pressure roller 133 and the first pressure roller 131 is set to be equal to a preset ratio of the sum of the thicknesses of the two roll samples, and the preset ratio is 85% to 100%.

[0074] Since the two roll samples will be deformed after baking, resulting in a decrease in thickness, by setting the preset ratio, the tight pressing of the joint of the two roll samples can be realized.

[0075] Figure 4 is a structural schematic view of a roll joint peeling sample preparation device provided by another embodiment of the application.

[0076] In some embodiments, referring to Figure 4 , the clamp 15 includes a clamping part 151 for clamping the front ends of the two roll samples (the front end is from Figure 4The clamping part 151 is described along the moving direction indicated by the arrow; the clamping part 151 is provided with an assembly moving part 1511, the assembly moving part 1511 is provided with a track 152 inside, and the assembly moving part 1511 moves along the track 152 under the driving action and drives the clamping part 151 to move synchronously.

[0077] In some embodiments, the track 152 is marked with a scale, the track 152 is provided with a movable limiting part 153, and the movable limiting part 153 can be fixed and locked at a set position based on the scale, and the set position is related to the pressing length of the roll sample.

[0078] In this embodiment, since the track 152 is marked with a scale and the track is provided with a movable limiting part 153, the movable limiting part can be fixed and locked at a set position based on the scale, and when different roll samples are prepared, the movable limiting part can be fixed and locked at the corresponding set position according to the pressing length, so that during the sample preparation, the movable limiting part 153 can limit the maximum distance of the movement of the clamp 15, thereby realizing the automatic and accurate control of the sample preparation pressing length.

[0079] In some embodiments, referring to Figure 4 In addition to the baking structure 11, the oppositely arranged pressing roller structure 13, and the movable clamp 15, the sample preparation device 1 also includes: oppositely arranged positioning roller structures 12, the positioning roller structures 12 and the pressing roller structure 13 have a spacing along the horizontal direction; the positioning roller structures 12 and the pressing roller structure 13 together form the axial containing area 101 along the axial direction.

[0080] The positioning roller structure 12 includes two oppositely arranged positioning rollers, and the two positioning rollers are one of the following:

[0081] One positioning roller is fixed in position, and the other positioning roller is movable along the vertical direction; or,

[0082] Both positioning rollers are movable along the vertical direction.

[0083] The positioning roller structure 12 and the positioning roller and the pressing roller on the opposite side of the pressing roller structure 13 are used to position the front end of the two roll samples along the extension surface; and the moving direction of the clamp 15 is parallel to the extension surface. In this way, it can be ensured that no additional vertical force is generated during the movement of the front ends of the two roll samples along with the clamp 15, and only a smooth pressing force is applied by the pressing roller structure, thereby ensuring the stability of the sample preparation.

[0084] In Figure 4A fixed positioning roller 121 and another movable positioning roller 122 are shown as examples.

[0085] In some embodiments, with reference to Figure 4 As shown in the figure, the movable positioning roller 122 in the positioning roller structure 12 is in the following structural form: the movable positioning roller 122 is provided with a third assembly shaft 1221, the third assembly shaft 1221 is used to be assembled with a fourth sliding groove 1201 distributed along the vertical direction on the third support structure 120 and can slide up and down along the fourth sliding groove 1201 and be locked and fixed at a preset position.

[0086] In this embodiment, by providing the positioning roller structure 12, the positioning roller and the pressing roller in the opposite side of the positioning roller structure 12 and the pressing roller structure 13 are used to position the front ends of the two roll samples; the moving direction of the clamp is parallel to the extension surface, so that no additional vertical force is generated during the movement of the clamp at the front ends of the two roll samples, only a smooth pressing force is applied by the pressing roller structure, and the sample preparation stability is ensured.

[0087] Figure 5A is a schematic diagram of the state of the two roll samples to be spliced in the two channels of the baking structure when the roll sample preparation device for the roll joint peeling sample provided by an embodiment of the present application starts to prepare samples in an idle state.

[0088] With reference to Figure 5A As shown in the figure, a simplified structure of the sample preparation device 1 containing the positioning roller structure 12 and the pressing roller structure 13 is shown, and in the idle state, the pressing roller (for example, the second pressing roller 133) located at the upper side of the pressing roller structure 13 is in a suspended state by being assembled with the third sliding groove distributed along the horizontal direction in the T-shaped sliding groove 1321 of the second support structure 132. When the sample preparation device 1 starts to prepare samples from the idle state, the two roll samples to be spliced are respectively placed into the two channels 111 of the baking structure 11. In Figure 5A In the figure, the roll sample in the upper channel is described as the first roll sample 21, and the roll sample in the lower channel is described as the second roll sample 22.

[0089] Figure 5B is a schematic diagram of the state of the two roll samples in the sample preparation device for the roll joint peeling sample provided by an embodiment of the present application in the sample preparation state, in which the front ends of the two roll samples are clamped by the movable clamp, are baked by the fire outlet, are positioned by the positioning roller and the pressing roller, and are pressed by the pressing roller.

[0090] With reference to Figure 5BAs shown, in the sample preparation state, the clamp 15 clamps the front ends of the first and second web samples 21 and 22, the first pressure roller 131 and the opposite fixed positioning roller 121 form an extension surface, and the two web samples pass through the channel and the flame outlet 112 and penetrate the extension surface; by moving the second pressure roller 133 in the upper pressure roller structure 13 to the second vertical sliding groove along the T-shaped sliding groove, adjusting the distance between the first pressure roller 131 and the second pressure roller 133, and adjusting the distance between the two positioning rollers, for example, adjusting the distance between the movable positioning roller 122 and the fixed positioning roller 121, so that the front ends of the two web samples are tightly fitted.

[0091] At this time, the flame device 14 is started to bake the web samples, and the positioning of the positioning roller structure and the pressure roller structure and the controllable pressing of the pressure roller structure are realized to prepare the web joint peeling sample.

[0092] The preparation process is as follows: the first and second web samples 21 and 22 are respectively placed in the two channels 111 of the baking structure 11, and the front end of the two web samples is baked by the flame device 14 when passing through the flame outlet 112. Due to the symmetrical conical arrangement of the two channels 111 of the baking structure, the baking degree of the two web samples by the flame device 14 is equivalent, and the heating is uniform; at the same time, the front end of the two web samples is heated and diffused after being baked, and the front end of the two web samples forms a joint surface, and the relative positioning roller structure 12 and the pressure roller structure 13 are simultaneously subjected to horizontal extension surface positioning, and the relative pressure roller structure 13 is subjected to tight pressing treatment, thereby improving the joint strength and uniformity of the joint stress of the joint surface.

[0093] Figure 5C It is an embodiment of the present application to provide a sample preparation device for a web joint peeling sample. In the sample preparation state, the clamp moves the joint of the two web samples and is limited by the movable positioning roller to realize the automatic and accurate control of the sample preparation pressing length.

[0094] Reference Figure 5C ​As shown, with the movement of the clamp 15, the length of the joint part of the first and second coiled material samples 21 and 22 gradually becomes longer, and the remaining part is still in a separated state along the channel, achieving the required sample preparation requirements. Since the track 152 is marked with a scale and a movable limiting piece 153 is arranged through the track, the movable limiting piece can be fixed and locked at a set position based on the scale, and the movable limiting piece can be fixed and locked at the corresponding set position according to the pressing length when different coiled material samples are prepared, so that the limiting of the farthest distance of the clamp 15 during sample preparation can be realized based on the movable limiting piece 153, thereby realizing the automatic and accurate control of the sample preparation pressing length.

[0095] In summary, the various sample preparation devices 1 provided by the embodiments of the present disclosure can improve the uniformity of heating and the controllability of pressing degree of the coiled material joint peeling sample, thereby effectively improving the test uniformity and stability of the prepared sample.

[0096] In the present application, the term "a plurality of" refers to at least two or at least two more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, or detachable connection, or integral connection; "connecting" can be direct connection, or indirect connection through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0097] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A sample preparation device (1) for peeling samples of roll material seams, characterized in that, include: The heating structure (11), the pressure roller structure (13) arranged opposite each other, and the movable clamp (15) are provided. The pressure roller structure (13) arranged opposite each other has an axial accommodating area (101). The heating structure (11) has a space inside for accommodating the flame-spraying device (14). The side wall of the heating structure (11) includes two hollow and conical symmetrically arranged channels (111) with flame-spraying outlets (112) formed at the inner edge of the channels. The channels (111) are used to accommodate two roll samples to be spliced, and the front end of the roll sample passes through the axial accommodating area (101) and is clamped by the clamp (15).

2. The sample preparation apparatus (1) according to claim 1, characterized in that: The flame-spraying device (14) includes a spray gun (142), the axial direction of which is equal to the angle formed by the two channels (111) and the angle is any angle between 20° and 80°, including the endpoint value.

3. The sample preparation apparatus (1) according to claim 1, characterized in that, The pressure roller structure (13) is used to apply controllable pressure to the joint portion of any two roll samples within the axial accommodating area (101); The pressure roller structure (13) includes: a first support structure (130), a first pressure roller (131) and a second pressure roller (133) arranged opposite to each other with adjustable spacing. The first support structure (130) has a first groove (1301) distributed along the vertical direction. The first pressure roller (131) is provided with a first assembly shaft (1311). The first assembly shaft (1311) is assembled with the first groove (1301) and can slide up and down along the first groove (1301) and be locked and fixed in a preset position.

4. The sample preparation apparatus (1) according to claim 3, characterized in that, The pressure roller structure (13) further includes: a second support structure (132), the second support structure (132) having a T-shaped groove (1321), the T-shaped groove (1321) including a second groove distributed along the vertical direction and a third groove that communicates with the second groove and is distributed along the horizontal direction, the second groove being disposed opposite to the first groove (1301); the second pressure roller (133) is provided with a second assembly shaft (1331), the second assembly shaft (1331) being assembled with the T-shaped groove (1321) and being able to slide left and right along the third groove, slide up and down along the second groove, and be locked and fixed in a preset position; When the sample preparation device (1) is in an idle state, the second pressure roller (133) is in a suspended state by being assembled with the third chute; When the sample preparation device (1) is in the sample preparation state, the second pressure roller (133) adjusts the distance between itself and the first pressure roller (131) by assembling with the second slide groove.

5. The sample preparation apparatus (1) according to claim 4, characterized in that, When the sample preparation device (1) is in the sample preparation state, the distance between the second pressure roller (133) and the first pressure roller (131) is set to a preset ratio equal to the sum of the thicknesses of the two roll samples, and the preset ratio is 85% to 100%.

6. The sample preparation apparatus (1) according to claim 1, characterized in that, The clamp (15) includes: a clamping part (151), on which an assembly moving part (1511) is provided, and a track (152) is provided through the assembly moving part (1511). Under the driving action, the assembly moving part (1511) moves along the track (152) and drives the clamping part (151) to move synchronously.

7. The sample preparation apparatus (1) according to claim 6, characterized in that, The track (152) is marked with a scale, and a movable limiting member (153) is provided through the track (152). The movable limiting member (153) can be fixed and locked in a set position based on the scale. The set position is related to the pressing length of the roll sample.

8. The sample preparation apparatus (1) according to claim 1, characterized in that, The sidewall of the heating structure (11) is a high-temperature resistant structure that can withstand the flame temperature corresponding to the flame-spraying device (14).

9. The sample preparation apparatus (1) according to any one of claims 1-8, characterized in that, It also includes: a positioning roller structure (12) arranged opposite to each other, the positioning roller structure (12) and the pressure roller structure (13) being spaced apart in the horizontal direction; the positioning roller structure (12) and the pressure roller structure (13) arranged opposite to each other together form the axial accommodating area (101) in the axial direction. The positioning roller structure (12) includes two positioning rollers arranged opposite each other, wherein the two positioning rollers are one of the following: One positioning roller is fixed in position, while the other positioning roller is movable along the vertical direction; or... Both positioning rollers can move vertically. The positioning roller and pressure roller in the positioning roller structure (12) and the pressure roller structure (13) located on opposite sides are used to position the front end of the two roll samples on the extended surface; the moving direction of the clamp (15) is parallel to the extended surface.

10. The sample preparation apparatus (1) according to claim 9, characterized in that, The movable positioning roller (122) in the positioning roller structure (12) has the following structural form: The movable positioning roller (122) is provided with a third assembly shaft (1221), which is used to assemble with a fourth slide groove (1201) distributed vertically on the third support structure (120) and can slide up and down along the fourth slide groove (1201) and be locked in a preset position.

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