Modifier sample micro-foaming experiment drying oven

Abstract

The utility model provides a modifier sample micro-foaming experiment drying oven which comprises a drying oven main body, a heating device and an oven door used for sealing a baking chamber, wherein the drying oven main body is internally provided with the baking chamber; the grid tray is composed of a frame and a plurality of criss-cross fixing rods fixed to the inner side of the frame, a hollow gap is defined by the fixing rods and the frame, and a plurality of fixing clamping edges used for bearing the frame are symmetrically arranged on the two sides of the baking chamber; the auxiliary tray comprises an outer frame, a net face arranged on the inner side of the outer frame and pressing mechanisms arranged on the two sides of the outer frame and used for fixing the edge of the temperature-resistant paper, and a clamping structure matched with the fixing rod is formed at the lower end of the outer frame. Therefore, the problems that the sample droops and deforms and the edge of the temperature-resistant paper curls are effectively solved, the stability and heating uniformity of the modifier sample in a micro-foaming experiment can be improved, and the accuracy and reliability of a test result are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of modifier foaming equipment, especially modifier sample microfoaming experiment oven. BACKGROUND

[0002] As a substitute material, modifier is widely used in soft leather, sports floor, hard floor and PVC pipeline fields, aiming to realize cost saving by reducing the use amount of PVC, while ensuring that the quality and performance of products are not affected. In the research and development process of modifier, a plurality of tests need to be carried out according to the special requirements of different application fields, including but not limited to aging test and micro-expansion test, so as to evaluate whether the physical and chemical properties meet the corresponding standards.

[0003] At present, when carrying out micro-expansion test of modifier, the conventional method is to cut the modifier into a specified size (for example, 10*10 cm) according to the industry standard, then fix the modifier sample on the temperature-resistant paper, and then integrally place it on the grid tray in the oven, start the oven and carry out standardized test under the preset temperature condition.

[0004] However, the existing oven structure still has some problems when carrying out micro-expansion test of modifier:

[0005] In the currently used oven, in order to ensure the uniformity of heating, the gap of the grid tray is generally large. When the modifier sample on the temperature-resistant paper is placed on the tray, due to the existence of the grid gap, a hollow is formed under the sample, which not only may cause the sample to sag or change shape, but also may affect the uniformity of heating and the accuracy of the final test result.

[0006] In addition, under high temperature environment, the edge of the temperature-resistant paper carrying the modifier sample is easy to curl. This curling will block part of the area of the sample, further interfere with the uniform distribution of heat, and thus adversely affect the test result.

[0007] Therefore, the present inventors specially designed the modifier sample microfoaming experiment oven, and the present case was thus generated. CONTENT OF THE UTILITY MODEL

[0008] In order to solve the above problems, the technical scheme of the utility model is as follows:

[0009] The modifier sample microfoaming experiment oven comprises:

[0010] An oven main body, which is provided with a baking chamber, a heating device and a door for closing the baking chamber;

[0011] Grid tray, by the frame and a plurality of vertical and horizontal interlaced and fixed to the inside of the frame fixed rod, a plurality of fixed rod and frame between the enclosed gap formed by the hollow, the baking chamber both sides symmetrically arranged a plurality of for bearing frame fixed card along;

[0012] Auxiliary tray, including the outer frame, the net surface arranged in the inner side of the outer frame and the pressing mechanism arranged on both sides of the outer frame and used for fixing the edge of the temperature-resistant paper, the lower end of the outer frame forms the clamping structure matched with the fixed rod.

[0013] Preferably, the pressing mechanism comprises a rotating shaft structure and a pressing ring extending to the upper end of the net surface.

[0014] Preferably, the rotating shaft structure comprises two fixed seats and a pressing shaft rotatably arranged between the two fixed seats, the pressing ring is buckled on the pressing shaft, and one end of the pressing shaft is wound with a torsional spring to make the pressing ring have the tendency of elastically pressing the net surface.

[0015] Preferably, the two ends of the torsional spring are fixed on the pressing shaft and the top of the outer frame respectively.

[0016] Preferably, the pressing ring comprises two buckle parts and a pressing part, the pressing part is U-shaped and the two ends are fixed on the buckle parts respectively, and the side away from the buckle part of the pressing part is bent downward to form a pressing segment.

[0017] Preferably, the lower end of the buckle part forms an arc-shaped clamping groove matched with the pressing shaft, the arc-shaped clamping groove penetrates through the buckle part along the horizontal direction to make the buckle part smoothly clamped into the pressing shaft, and the lower end opening of the arc-shaped clamping groove is smaller than the diameter of the pressing shaft.

[0018] Preferably, a friction pad for increasing friction is embedded in the inside of the arc-shaped clamping groove.

[0019] Preferably, the end of the pressing shaft away from the torsional spring is provided with a sheet-shaped gripping part convenient for the user to hold, and the outer frame extends outwardly at one end along the length direction and has a handle rail, and a handle slot is provided on the handle rail.

[0020] Preferably, the pressing rings on both sides of the outer frame are symmetrically arranged and each is provided with four.

[0021] Preferably, the clamping structure is a plurality of sheet-shaped fixed plates integrally extending downward along the outer frame, the lower end of the fixed plate is provided with a clamping groove matched with the fixed rod, and the distance between adjacent clamping grooves on the same side of the outer frame is the same as the distance between adjacent two parallel distributed fixed rods.

[0022] The beneficial effects of the utility model are as follows:

[0023] The utility model discloses a supplementary tray is additionally arranged, and the more compact net surface is used to bear the temperature resistant paper and the modified agent sample, makes it be in the steady state, and the subsequent micro -inflation test is convenient.

[0024] Meanwhile, through the pressing mechanism arranged at the both sides of the net surface, the edge of the temperature resistant paper can be fixed, so that it is stably pressed during the micro -inflation test, and the curling of the edge of the temperature resistant paper is avoided to shield the modified agent sample.

[0025] In conclusion, the utility model discloses a supplementary tray is additionally arranged, and the more compact net surface is used to bear the temperature resistant paper and the modified agent sample, makes it be in the steady state, and the subsequent micro -inflation test is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0026] The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the utility model, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute improper limitation to the utility model.

[0027] Among them:

[0028] Figure 1 It is the overall structure schematic diagram of the utility model;

[0029] Figure 2 It is the opening state schematic diagram of the oven main part in the utility model;

[0030] Figure 3 It is the local structure schematic diagram of the grid tray and supplementary tray in the utility model;

[0031] Figure 4 It is the local structure schematic diagram of the supplementary tray in the utility model;

[0032] Figure 5 It is the explosion structure schematic diagram of the supplementary tray in the utility model;

[0033] Figure 6 It is Figure 4 The local amplification structure schematic diagram of A area in;

[0034] Figure 7 It is the local structure schematic diagram of the highlight clamping structure in the utility model;

[0035] Figure 8 It is the local sectional structure schematic diagram of the highlight pressing ring and pressing shaft in the utility model.

[0036] Label explanation:

[0037] 10, oven body; 11, baking chamber; 12, oven door; 20, grid tray; 21, frame; 30, auxiliary tray; 40, outer frame; 41, handle side; 42, handle groove; 50, mesh surface; 60, pressing mechanism; 61, rotating shaft structure; 611, fixed seat; 612, pressing shaft; 613, torsional spring; 614, first clamping groove; 615, clamping block; 616, gripping part; 62, pressing ring; 621, clamping part; 622, pressing part; 623, pressing section; 624, arc-shaped clamping groove; 625, friction pad; 70, clamping structure; 71, clamping groove. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects of the present application more clear, specific embodiments will be described in detail below with reference to the drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0039] Please refer to Figures 1 to 8 , which is a modified agent sample micro-foaming experimental oven as the best embodiment of the present application, comprising: an oven body 10, a grid tray 20 and an auxiliary tray 30.

[0040] The oven body 10 is provided with a baking chamber 11, a heating device and an oven door 12 for closing the baking chamber 11;

[0041] In this embodiment, the oven body 10 is a common laboratory oven, which forms a baking chamber 11 of a certain size inside, and the heating device heats the baking chamber 11 to raise the temperature inside the baking chamber 11, thereby facilitating the corresponding baking test. The oven door 12 is used to close the baking chamber 11 to avoid affecting the internal temperature of the baking chamber 11.

[0042] The grid tray 20 is composed of a frame 21 and a plurality of fixed rods arranged longitudinally and transversely inside the frame 21. The fixed rods and the frame 21 form a hollow gap therebetween, and a plurality of fixed clamping edges for bearing the frame 21 are symmetrically arranged on both sides of the baking chamber 11.

[0043] The auxiliary tray 30 comprises an outer frame 40, a mesh surface 50 arranged inside the outer frame 40, and a pressing mechanism 60 arranged on both sides of the outer frame 40 for fixing the edges of temperature-resistant paper. The lower end of the outer frame 40 forms a clamping structure 70 cooperating with the fixed rods.

[0044] Preferably, as shown in Figure 4 , 5 , 6, the pressing mechanism 60 comprises a rotating shaft structure 61 and a pressing ring 62 extending to the upper end of the mesh surface 50.

[0045] Specifically, as shown in Figure 5 , 6, 7, the rotating shaft structure 61 comprises two fixed seats 611 and a compression shaft 612 rotatably arranged between the two fixed seats 611, and the compression ring 62 is buckled to the compression shaft 612, and one end of the compression shaft 612 is provided with a torsion spring 613 to make the compression ring 62 have a tendency to elastically compress the mesh surface 50.

[0046] Therefore, the compression shaft 612 is elastically limited by the torsion spring 613, and always has a tendency to turn to the mesh surface 50, and when the compression ring 62 is buckled to the compression shaft 612, the compression ring 62 can always be kept in a state of compressing the mesh surface 50 under the driving of the torsion spring 613, so that the compression process of the corner of the temperature-resistant paper can be conveniently realized when the temperature-resistant paper is placed on the mesh surface 50.

[0047] Preferably, as shown in Figure 6 , 7 , the two ends of the torsion spring 613 are fixed to the compression shaft 612 and the top of the outer frame 40 respectively, and in the embodiment, the end of the compression shaft 612 is provided with a first clamping groove 614 along the axial direction, one side of the fixed seat 611 is integrally provided with a clamping block 615, the clamping block 615 is provided with a second clamping groove (not shown in the figure), and the two ends of the torsion spring 613 are respectively inserted into the first clamping groove 614 and the second clamping groove, so as to realize the elastic rotation limiting of the compression shaft 612.

[0048] Preferably, as shown in Figure 6 , 7 , 8, the compression ring 62 comprises two buckling parts 621 and a compression part 622, the compression part 622 is in a U shape and the two ends are fixed to the buckling parts 621 respectively, and the side of the compression part 622 away from the buckling parts 621 is bent downward to form a compression section 623, and in the embodiment, the buckling parts 621 and the compression part 622 are integrally formed by high-temperature-resistant nylon, and the downwardly bent compression section 623 makes the compression part 622 more convenient to compress and fix the edge of the temperature-resistant paper, so that the user can more conveniently lift the compression ring 62 by the compression ring 62 made of nylon, and then the edge of the temperature-resistant paper can be compressed and fixed after being placed.

[0049] Preferably, as shown in Figure 8 , the lower end of the buckling part 621 forms an arc-shaped clamping groove 624 embedded with the compression shaft 612, the arc-shaped clamping groove 624 penetrates the buckling part 621 along the horizontal direction to make the buckling part 621 smoothly buckle into the compression shaft 612, the lower end opening of the arc-shaped clamping groove 624 is smaller than the diameter of the compression shaft 612, and a friction pad 625 for increasing friction is embedded in the inner side of the arc-shaped clamping groove 624, so that the friction between the arc-shaped clamping groove 624 and the compression shaft 612 can be increased by the friction pad 625, and the compression ring 62 can more stably rotate and swing with the compression shaft 612.

[0050] In addition, according to the buckle connection relationship between the buckle part 621 and the compression shaft 612, the position of the compression ring 62 can be adjusted according to the quantity and position of the measured modified agent sample, and the corresponding position of the temperature-resistant paper edge can be fixed by buckling into the compression shaft 612, which is more convenient and efficient.

[0051] Preferably, as shown in Figure 4 、 5 The end of the compression shaft 612 away from the torsional spring 613 is provided with a sheet-shaped gripping part 616 for conveniently gripping by the user's hand, and the outer frame 40 extends outwardly at one end along the length direction and has a handle rail 41, and the handle rail 41 is provided with a handle slot 42 penetratingly arranged thereon, so that the gripping part 616 can be conveniently gripped by the user to rotate the compression shaft 612, so that the compression rings 62 on the compression shaft 612 are uniformly swung, thereby facilitating the uniform operation and fixation of the edges of the temperature-resistant papers on the same side.

[0052] Preferably, as shown in Figure 4 、 5 The compression rings 62 on both sides of the outer frame 40 are symmetrically arranged and each have four, and the edges of the temperature-resistant papers of two groups of measured modified agent samples can be stably compressed and fixed at one time by the eight compression rings 62 symmetrically arranged on both sides, thereby improving the fixation efficiency of the auxiliary tray 30.

[0053] Preferably, as shown in Figure 7 The clamping structure 70 is a plurality of sheet-shaped fixed plates integrally extending downward along the outer frame 40, the lower end of the fixed plate is provided with a clamping groove 71 embedded with the fixed rod, and the interval between adjacent clamping grooves 71 on the same side of the outer frame 40 is the same as the interval between the adjacent two fixed rods distributed in parallel.

[0054] Therefore, by arranging the clamping groove 71, the auxiliary tray 30 can be stably clamped with the fixed rod of the grid tray 20, and the stability of the connection between the auxiliary tray 30 and the grid tray 20 is further improved.

[0055] The beneficial effects of the utility model are as follows:

[0056] The utility model adds an auxiliary tray 30, uses a more dense mesh surface 50 to bear the temperature-resistant paper and the modified agent sample, so that the temperature-resistant paper and the modified agent sample are in a stable state, and subsequent micro-expansion tests are facilitated.

[0057] Meanwhile, the edges of the temperature-resistant paper can be fixed by the compression mechanism 60 arranged on both sides of the mesh surface 50, so that the edges of the temperature-resistant paper are stably pressed during the micro-expansion test, and the temperature-resistant paper is prevented from being curled and shielding the modified agent sample.

[0058] In conclusion, the utility model discloses through the additional auxiliary tray 30, the stable support and the fixation of temperature resistant paper and modifier, thereby effectively solve the sample droop deformation and temperature resistant paper edge curl problem, not only can improve the stability and heating uniformity of modifier sample in micro -foaming experiment, still significantly improved the accuracy and reliability of test result.

[0059] The utility model has been described above in conjunction with the drawings, obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various non-essential improvements of the method concept and technical scheme of the utility model are adopted, or the concept and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. Modifier sample micro-foaming experimental oven, characterized in that, include: An oven body (10) is provided with a baking chamber (11), a heating device, and a door (12) for closing the baking chamber (11); The grid tray (20) is composed of a frame (21) and a plurality of fixed rods that are crisscrossed and fixed to the inner side of the frame (21); a hollow gap is formed between the plurality of fixed rods and the frame (21); and a plurality of fixed edges for supporting the frame (21) are symmetrically provided on both sides of the baking chamber (11); The auxiliary tray (30) comprises an outer frame (40), a mesh surface (50) provided on the inner side of the outer frame (40), and a clamping mechanism (60) provided on both sides of the outer frame (40) and used to fix the edge of the heat-resistant paper. The lower end of the outer frame (40) forms a clamping structure (70) that cooperates with the fixing rod.

2. The modifier sample micro-foaming experimental oven according to claim 1, characterized in that: The pressing mechanism (60) comprises a rotating shaft structure (61) and a pressing ring (62) extending to the upper end of the mesh surface (50).

3. The modifier sample micro-foaming experimental oven according to claim 2, characterized in that: The rotating shaft structure (61) includes two fixed seats (611) and a compression shaft (612) rotatably arranged between the two fixed seats (611). The compression ring (62) is snap-connected to the compression shaft (612). A torsion spring (613) is wound around one end of the compression shaft (612) so that the compression ring (62) has a tendency to elastically compress the mesh surface (50).

4. The modifier sample micro-foaming experimental oven according to claim 3, characterized in that: The two ends of the torsion spring (613) are respectively fixed to the pressing shaft (612) and the top of the outer frame (40).

5. The modifier sample micro-foaming experimental oven according to claim 3, characterized in that: The clamping ring (62) comprises two buckle portions (621) and a clamping portion (622). The clamping portion (622) is U-shaped and has two ends respectively fixed to the buckle portions (621). The side of the clamping portion (622) away from the buckle portion (621) is bent downward to form a clamping section (623).

6. The modifier sample micro-foaming experimental oven according to claim 5, characterized in that: The lower end of the snap-fit ​​portion (621) forms an arc-shaped snap-fitting groove (624) engaged with the clamping shaft (612). The arc-shaped snap-fitting groove (624) passes through the snap-fit ​​portion (621) in a horizontal direction so that the snap-fit ​​portion (621) can be smoothly clamped into the clamping shaft (612). The lower end opening of the arc-shaped snap-fitting groove (624) is smaller than the diameter of the clamping shaft (612).

7. The modifier sample micro-foaming experimental oven according to claim 6, characterized in that: A friction pad (625) for increasing friction is embedded inside the arc-shaped slot (624).

8. The modifier sample micro-foaming experimental oven according to claim 3, characterized in that: The end of the clamping shaft (612) away from the torsion spring (613) is provided with a sheet-shaped gripping portion (616) for easy grasping by a user's hand, and the outer frame (40) is provided with a handle edge (41) extending outward along one end of the outer frame (40) in the longitudinal direction, and a handle groove (42) is provided through the handle edge (41).

9. The micro-foaming experimental oven for modifier samples according to any one of claims 2 to 7, characterized in that: The clamping rings (62) on both sides of the outer frame (40) are symmetrically arranged, and four of them are provided.

10. The modifier sample micro-foaming experimental oven according to claim 1, characterized in that: The clamping structure (70) is a plurality of sheet-like fixing plates integrally extending downward along the outer frame (40). The lower ends of the fixing plates are provided with clamping grooves (71) engaged with the fixing rods. The spacing between adjacent clamping grooves (71) located on the same side of the outer frame (40) is the same as the spacing between two adjacent parallel fixing rods.

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