Device for detecting air tightness of kiln frame

Abstract

The utility model discloses a device for detecting the air tightness of a kiln frame, which comprises a first-stage support, a second-stage support, a bearing platform, a kiln frame to be tested and at least one driving unit, and is characterized in that the bearing platform is positioned between the first-stage support and the second-stage support; a stop plate is installed on the second-stage support, the kiln frame is placed on the bearing table, the driving unit is fixedly installed on the first-stage support, a sealing baffle is installed at the movable end of the driving unit, and a plurality of sealing strips are arranged on the inner side of the sealing baffle and the stop plate. The driving unit is used for driving the sealing baffle to reciprocate in the horizontal direction, the sealing strip is used for being matched with the stopping baffle and the sealing baffle to seal the kiln frame, the sealing baffle is driven by the driving unit to move in the horizontal direction, and the sealing baffle pushes the kiln frame to move towards the stopping baffle. When the sealing baffle presses the kiln frame on the stopping baffle, the sealing baffle is matched with the sealing strip to enable the inner cavity of the kiln frame to be in a sealed state, so that the air tightness of the kiln frame is tested, and the sealing device has the advantages of being good in sealing performance and low in cost.

Description

Technical Field

[0001] This utility model relates to the technical field of kilns, and in particular to a device for detecting the airtightness of kiln frames. Background Technology

[0002] In the production of new energy lithium battery kilns, due to their special structure, the airtightness requirements of these kilns are very high. Currently, in the airtightness testing of lithium battery kilns, corresponding sealing baffles of different sizes and specifications need to be matched. The sealing baffles are not interchangeable, resulting in low availability. As the production volume increases, the production cost also increases. Secondly, the airtightness test takes a long time, and due to the weight of the sealing baffles, the operation is difficult and requires a lot of human resources.

[0003] Therefore, based on the above-mentioned technical problems, this application proposes a low-cost device for detecting the airtightness of kiln racks. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cost-effective device for testing the airtightness of kiln frames.

[0005] To achieve the above objectives, this utility model provides a device for testing the airtightness of a kiln frame, characterized in that it includes a primary support, a secondary support, a support platform, a kiln frame to be tested, and at least one drive unit. The support platform is located between the primary and secondary supports. A stop plate is installed on the secondary support. The kiln frame is placed on the support platform. The drive unit is fixedly installed on the primary support, and a sealing baffle is installed on the movable end of the drive unit. Both the inner side of the sealing baffle and the stop plate are provided with several sealing strips. The drive unit drives the sealing baffle to reciprocate horizontally. The sealing strips cooperate with the stop plate and the sealing baffle to seal the kiln frame. As the drive unit drives the sealing baffle to move horizontally, the sealing baffle pushes the kiln frame towards the stop plate. When the sealing baffle presses the kiln frame tightly against the stop plate, the sealing strips, in conjunction with the sealing strips, seal the inner cavity of the kiln frame, thereby performing an airtightness test on the kiln frame.

[0006] Furthermore, two slide rails are installed on the support platform, with one end of the slide rail extending horizontally to the bottom of the kiln frame and the other end extending horizontally into the primary support.

[0007] Furthermore, a support base is formed on the outer side of the sealing baffle, and at least two pulleys that slide in cooperation with the slide rail are symmetrically arranged at the bottom end of the support base.

[0008] Furthermore, the kiln frame is externally connected to a vacuum pump.

[0009] Further, the air pressure sensor is used for monitoring the air pressure in the inner cavity of the kiln frame.

[0010] Further, the sealing strip is made of silica gel.

[0011] Further, the sealing baffle and the stop baffle have an outer dimension greater than that of the kiln frame at both ends.

[0012] The utility model has the advantages that:

[0013] Different from the conventional design of the sealing baffle of corresponding size for the kiln frame of each size, the sealing baffle is designed as a movable structure, and the kiln frame is sealed in cooperation with the sealing strip, so that the loss of the kiln frame is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the detection device in the embodiment.

[0015] Figure 2 It is a front view of the detection device in the embodiment Figure 1 .

[0016] Figure 3 It is a front view of the detection device in the embodiment Figure 2 .

[0017] 1 - primary support, 11 - driving unit, 12 - sealing baffle, 13 - support seat, 14 - pulley, 2 - secondary support, 21 - stop baffle, 3 - bearing table, 31 - slide rail, 4 - kiln frame, 5 - sealing strip, 6 - air pressure sensor. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the drawings. The preferred embodiments of the utility model are shown in the drawings. However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0019] Referring to the drawings Figure 1 , 3As shown, in the embodiment, a device for detecting the air tightness of a kiln frame comprises a first support 1, a second support 2, a bearing table 3, a kiln frame 4 to be tested, and at least one, preferably four, symmetrically arranged driving units 11, wherein the bearing table 3 is located between the first support 1 and the second support 2, and the bottoms of the first support 1 and the second support 2 are fixed to the ground of a workshop; a stop plate 21 is installed on the second support 2, the kiln frame 4 is placed on the bearing table 3, the driving unit 11 is fixedly installed on the first support, and a sealing stop plate 12 is installed on the movable end of the driving unit 11, and a plurality of sealing strips 5 are arranged on the inner side of the sealing stop plate 12 and the stop plate 21; the driving unit 11 is used to drive the sealing stop plate 12 to move back and forth in the horizontal direction, the sealing strips 5 are used to seal the kiln frame 4 in cooperation with the stop plate 21 and the sealing stop plate 12, and the sealing strips 5 are made of silica gel, and the sealing stop plate 12 is driven by the driving unit 11 to move in the horizontal direction, so that the sealing stop plate 12 pushes the kiln frame 4 to move towards the stop plate 21; when the sealing stop plate 12 presses the kiln frame 4 tightly on the stop plate 21, the sealing strips 5 cooperate to make the inner cavity of the kiln frame 4 in a sealed state, so as to test the air tightness of the kiln frame 4; specifically, one driving unit 11 can be arranged at the center position of the first support 1, or four symmetrically arranged driving units 11 can be arranged on the first support 1 (the number of driving units 11 can be selected according to actual needs), the sealing stop plate 12 is driven by the driving unit 11 to press the kiln frame 4 tightly on the stop plate 21, and then the sealing strips 5 on the sealing stop plate 12 and the stop plate 21 further seal the kiln frame 4, wherein the position distribution of the sealing strips 5 arranged on the stop plate 21 and the sealing stop plate 12 is positioned according to the size of the kiln frame 4 to be tested; in addition, by selecting the silica gel sealing strips 5, the damage of the kiln frame 4 caused by the contact between the sealing strips 5 and the kiln frame 4 during the pressing process is avoided under the premise of ensuring the sealing effect, so as to protect the integrity of the kiln frame 4 and reduce the production cost.

[0020] Referring to the drawings Figure 1 , 3As shown, in the embodiment, two slide rails 31 are installed on the bearing table 3, one end of the slide rail 31 extends horizontally to the bottom of the kiln frame 4, and the other end extends horizontally into the first support 1; secondly, the support seat 13 is formed on the outer side of the sealing baffle 12, and the bottom end of the support seat 13 is symmetrically provided with at least two, preferably four, sliding wheels 14 that are in sliding cooperation with the slide rails 31. Specifically, through the sliding cooperation of the slide rails 31 and the sliding wheels 14, and at the same time cooperating with the driving of the sealing baffle 12 by the driving unit 11, the sealing baffle 12 realizes horizontal reciprocating movement, avoids the sealing baffle 12 from causing too large load on the driving unit 11 due to its excessive mass, thereby improving the stability of the overall operation and reducing the required maintenance cost; secondly, the length of the above-mentioned slide rail 31 can be set according to the length of the kiln frame 4 to be measured, so as to avoid the situation that the sealing baffle 12 driven by the driving unit 11 cannot press the kiln frame 4 tightly due to the too small length of the slide rail 31, thereby affecting the air tightness detection.

[0021] Referring to the accompanying drawings Figure 1 、 2 As shown, further, the outer dimensions of the sealing baffle 12 and the stop baffle 21 are greater than the outer dimensions of the two ends of the kiln frame 4, thereby ensuring the sealing function of the kiln frame 4.

[0022] Referring to the accompanying drawings Figure 1 As shown, in the embodiment, a gas pressure sensor 6 is further included, which is used to monitor the gas pressure in the inner cavity of the kiln frame 4; secondly, the kiln frame 4 is connected with a vacuum pumping device, specifically, the vacuum pumping device can be selected by outsourcing, and the inner cavity of the kiln frame 4 in a sealed state is subjected to vacuum pumping treatment by the vacuum pumping device, thereby realizing the air tightness test of the kiln frame 4, in addition, the operator can monitor the gas pressure value in the inner cavity of the kiln frame 4 in real time through the gas pressure sensor 6, which is convenient for the operator to judge whether the air tightness of the kiln frame 4 is qualified.

[0023] In order to facilitate explanation and description, the following further explains and describes the specific working process of the detection device in the embodiment.

[0024] S1 According to the size of the kiln frame 4 to be measured, the sealing strip 5 is positioned and installed on the sealing baffle 12 and the stop baffle 21;

[0025] S2 Place the kiln frame 4 to be measured on the bearing table 3;

[0026] S3 The driving unit 11 drives the sealing baffle 12 to move towards the position of the kiln frame 4, so that the sealing baffle 12 contacts one end of the kiln frame 4;

[0027] S4 When the sealing baffle 12 pushes the other end of the kiln frame 4 to the stop baffle 21 and presses it tightly, the sealing strip 5 on the sealing baffle 12 and the stop baffle 21 realizes the sealing function of the kiln frame 4;

[0028] S5 The vacuumizing device is used to vacuumize the kiln frame 4 in a sealed state;

[0029] S6 Within a specified test time, the operator determines whether the air tightness of the kiln frame 4 meets the requirements according to the air pressure detected by the air pressure sensor 6 in the inner cavity of the kiln frame 4;

[0030] S7 When the air tightness of the kiln frame 4 meets the requirements, the driving unit 11 is used to drive the sealing baffle 12 away from the kiln frame 4, and then the kiln frame 4 is transferred to the next process;

[0031] S8 When the air tightness of the kiln frame 4 does not meet the requirements, the driving unit 11 is used to drive the sealing baffle 12 away from the kiln frame 4, and then the kiln frame 4 is transferred to the corresponding process for rework.

[0032] The above embodiments are only the preferred embodiments of the present application, and do not limit the present application in any form. Any skilled person in the art, without departing from the technical scheme of the present application, can make more possible changes and modifications, or modifications to the technical scheme of the present application by using the disclosed technical content, which are all equivalent embodiments of the present application. Therefore, any equivalent changes within the technical scheme of the present application, according to the idea of the present application, should be covered within the protection scope of the present application.

Claims

1. A device for detecting the airtightness of a kiln frame, characterized in that: The device includes a primary support (1), a secondary support (2), a support platform (3), a kiln frame (4) to be tested, and at least one drive unit (11). The support platform (3) is located between the primary support (1) and the secondary support (2). A stop plate (21) is installed on the secondary support (2). The kiln frame (4) is placed on the support platform (3). The drive unit (11) is fixedly installed on the primary support. A sealing baffle (12) is installed on the movable end of the drive unit (11). Several sealing strips (5) are provided on the inner side of the sealing baffle (12) and the stop plate (21). The drive unit (11) is used to drive the sealing baffle (12) to move back and forth in the horizontal direction. The sealing strip (5) is used to cooperate with the stop plate (21) and the sealing baffle (12) to seal the kiln frame (4). As the drive unit (11) drives the sealing baffle (12) to move in the horizontal direction, the sealing baffle (12) pushes the kiln frame (4) toward the stop plate (21). When the sealing baffle (12) presses the kiln frame (4) onto the stop plate (21), the sealing strip (5) makes the inner cavity of the kiln frame (4) in a sealed state, thereby performing an airtightness test on the kiln frame (4).

2. The device for detecting the airtightness of a kiln frame according to claim 1, characterized in that: Two slide rails (31) are installed on the support platform (3). One end of the slide rail (31) extends horizontally to the bottom of the kiln frame (4), and the other end extends horizontally into the first-level support (1).

3. The device for detecting the airtightness of a kiln frame according to claim 1, characterized in that: A support base (13) is formed on the outer side of the sealing baffle (12), and at least two pulleys (14) that slide and cooperate with the slide rail (31) are symmetrically arranged at the bottom end of the support base (13).

4. The device for detecting the airtightness of a kiln frame according to claim 1, characterized in that: The kiln frame (4) is externally connected to a vacuum pump.

5. The device for detecting the airtightness of a kiln frame according to claim 1, characterized in that: It also includes a pressure sensor (6) for monitoring the air pressure inside the kiln frame (4).

6. The device for detecting the airtightness of a kiln frame according to claim 1, characterized in that: The sealing strip (5) is made of silicone.

7. The device for detecting the airtightness of a kiln frame according to claim 1, characterized in that: The outer dimensions of the sealing baffle (12) and the stop baffle (21) are larger than the outer dimensions of both ends of the kiln frame (4).

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