Singeing machine with low temperature protection function

Abstract

The application discloses a singeing machine with a low-temperature protection function, which comprises a singeing machine box body, the singeing machine box body is provided with a heat preservation mechanism for low-temperature protection when the electric heating plate is disabled, the top of the heat preservation mechanism is provided with a linkage mechanism, the singeing machine box body is provided with a shielding mechanism for forming a sealed cavity inside the first square groove, the shielding mechanism is provided with a positioning mechanism for limiting the movement of the shielding mechanism, the shielding mechanism moves synchronously with the heat preservation mechanism through the linkage mechanism, and the heat preservation mechanism comprises a heat-resistant frame and a heat-resistant plate. The heat-resistant frame, the heat-resistant plate, the sealing block, the baffle, the supporting plate, the sliding frame, the guide block, the tension spring and the bearing plate are matched and arranged, the heat-resistant plate and the heat-resistant frame are combined to seal the electric heating plate, thereby being favorable for low-temperature protection of the electric heating plate when the electric heating plate is disabled, reducing the time for heating to a specified position when the electric heating plate is continuously used, and facilitating operation.

Description

Technical Field

[0001] This invention relates to the field of singeing machines, and particularly to a singeing machine with a low-temperature protection function. Background Technology

[0002] A singeing machine is a commonly used device for burning off the fuzz on the surface of fabrics. There are various types of singeing machines and different singeing methods. Singeing machines usually use two adjacent red-hot metal surfaces to transport the fabric between the two metal surfaces. As the fuzz on the metal surfaces rubs against them, it is burned off, giving the fabric a smooth surface.

[0003] Some existing singeing machines typically include a housing, multiple guide rollers, a heating plate, and heating tubes. The top of the housing is equipped with a ventilation opening to ventilate the interior of the housing. The heating tubes are fixed to the heating plate. There are two heating plates and two heating tubes, arranged vertically. The heating plate is fixed inside the housing. The guide rollers can transport the fabric, allowing it to pass between the upper and lower heating plates to singe the nap on the surface of the fabric.

[0004] After processing a roll of fabric, further processing is required. Typically, the singeing machine is stopped for a period of time to save power. Because the chamber has ventilation openings, convection occurs between the openings and the outside air, causing the air inside the singeing machine chamber to flow out. This results in heat loss from the singeing machine chamber, causing the heating plate to continuously dissipate heat and become too cold. Consequently, when the machine is to be used again, the heating plate needs to be heated to the required temperature for a certain period of time. This makes it difficult to provide low-temperature protection for the heating plate when the singeing machine is stopped, which presents certain limitations. Summary of the Invention

[0005] The purpose of this invention is to provide a singeing machine with low-temperature protection function and its temperature control method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a singeing machine with low-temperature protection function, comprising:

[0007] The singeing machine housing has an electric heating plate fixedly connected inside the singeing machine housing, and a first square groove and a second square groove are respectively opened on the top and two sides of the singeing machine housing.

[0008] The singeing machine housing is equipped with a heat preservation mechanism for low-temperature protection when the electric heating plate is not in use. The top of the heat preservation mechanism is equipped with a linkage mechanism. The top of the singeing machine housing is equipped with a shielding mechanism for forming a sealed cavity inside the first square groove. The shielding mechanism is equipped with a positioning mechanism for limiting the movement of the shielding mechanism. The shielding mechanism moves synchronously with the heat preservation mechanism through the linkage mechanism.

[0009] The heat-insulating mechanism includes a heat-resistant frame and a heat-resistant plate. The heat-resistant plate is located at the bottom of the heat-resistant frame. The heat-resistant frame is slidably disposed outside the electric heating plate. The heat-resistant frame is used to cooperate with the heat-resistant plate to form a sealed heat-insulating cavity around the electric heating plate.

[0010] Preferably, the heat preservation mechanism further includes:

[0011] A sealing block, the bottom end of which is fixedly connected to a heat-resistant plate, is used to connect and position the heat-resistant frame and the heat-resistant plate.

[0012] A baffle, the bottom end of which is fixedly connected to a heat-resistant frame, is used to control the closing and opening of the inner cavity of the second square groove;

[0013] A support plate is fixedly connected to the inside of the singeing machine housing. A sliding frame for driving the vertical movement of the heat-resistant frame and guiding the vertical movement of the heat-resistant frame is slidably arranged on the support plate. A bearing plate is fixedly connected to one side of the support plate.

[0014] A tension spring is fixedly connected between the sliding frame and the support plate, and the tension spring is used to drive the sliding frame to move vertically up and down.

[0015] Preferably, one side of the sliding frame is fixedly connected to the heat-resistant frame, one side of the support plate is provided with a first sliding groove, the sliding frame is slidably inserted into the inner cavity of the first sliding groove, guide blocks are fixedly connected to both sides of the sliding frame, guide grooves are provided on both sides of the inner wall of the first sliding groove, and the guide blocks are slidably inserted into the inner cavity of the guide grooves.

[0016] Preferably, the shielding mechanism includes a protective plate located at the top of the singeing machine housing. The protective plate is used to form a sealed protection for the interior of the first square groove. A sliding plate is fixedly connected to the bottom of the protective plate to drive the protective plate to slide horizontally. A fixing rod for guiding the horizontal movement of the sliding plate is slidably inserted through one side of the sliding plate. A positioning plate is fixedly connected to one end of the fixing rod. A mounting bolt is threaded through one side of the inner wall of the first square groove. One end of the mounting bolt is threaded through the positioning plate. A through groove is opened at the top of the protective plate.

[0017] Preferably, the top of the singeing machine housing is provided with a first sliding groove, and the sliding plate and the positioning plate are slidably inserted into the inner cavity of the second sliding groove. The outer wall of the fixing rod is fitted with a spring for driving the sliding plate to move horizontally. One end of the spring is in contact with the sliding plate, and the other end of the spring is in contact with the positioning plate.

[0018] Preferably, the linkage mechanism includes a linkage rope and a guide shaft. One end of the linkage rope is fixedly connected to a sliding plate, and the other end of the linkage rope is fixedly connected to a heat-resistant frame. The linkage rope is used to make the sliding plate and the heat-resistant frame move synchronously. The guide shaft is fixedly connected to the inside of the singeing machine housing. The guide shaft is used to guide the movement of the linkage rope. The outer wall of the linkage rope is in contact with the outer wall of the guide shaft. A limiting ring for limiting the movement position of the linkage rope is fixedly inserted through the outer wall of the guide shaft. The linkage rope is located between adjacent limiting rings.

[0019] Preferably, the positioning mechanism includes a fixed frame, a limiting rod, and a drive plate. The bottom end of the fixed frame is fixedly connected to the protective plate. The limiting rod is slidably inserted into the inner cavity of the fixed frame. The limiting rod is used to limit the position of the protective plate after it has moved. The top end of the limiting rod is fixedly connected to the drive plate. The drive plate is used to drive the limiting rod to move up and down in the vertical direction.

[0020] Preferably, the limiting rod is slidably inserted into the inner cavity of the through groove, the top of the singeing machine housing is provided with a limiting groove, the limiting rod is slidably inserted into the inner cavity of the limiting groove, and the bottom end of the drive plate is fixedly connected with an elastic rope for driving the drive plate to move vertically, and the bottom end of the elastic rope is fixedly connected to the protective plate.

[0021] Preferably, both sides of the singeing machine housing are slidably provided with sliding plates for sealing and protecting the inside of the singeing machine housing. The sides of the sliding plates are fixedly connected with insert plates that slidably insert into the singeing machine housing. The inner cavity of the first square groove is embedded with a protective net, and the inner cavity of the second square groove is embedded with a protective net.

[0022] A method for controlling the temperature of a singeing machine includes temperature control software, wherein the temperature control software includes:

[0023] Temperature monitoring module, which is used to monitor the singeing temperature in real time;

[0024] The data processing module is connected to the temperature monitoring module via a data stream. The data processing module receives temperature data monitored by the temperature monitoring module and processes the temperature data. The data processing module includes a data storage module and a data upload module. The data storage module is used to save the monitored temperature data and form a database. The data upload module is used to upload the real-time monitored temperature data to the backend computer so that the supervisor can observe it.

[0025] The control module is connected to the data processing module via control flow. The control module is used to receive data transmitted by the data processing module, make processing decisions on the data, output results, and adjust the singeing temperature.

[0026] The human-machine interaction module transmits data with the control module via data stream. The human-machine interaction module provides a user interface, enabling users to set temperature control parameters, view the current temperature value, and control the status of the equipment.

[0027] The technical effects and advantages of this invention are as follows:

[0028] This invention utilizes a combination of a heat-resistant frame, a heat-resistant plate, a sealing block, a baffle, a support plate, a sliding frame, a guide block, a tension spring, and a bearing plate. The heat-resistant frame is slidably fitted onto the heating plate, and the combination of the heat-resistant plate and the heat-resistant frame seals the heating plate. This facilitates low-temperature protection of the heating plate when it is shut down, reduces the time required to heat to the designated position when it is to be used again, and makes operation more convenient.

[0029] This invention utilizes a combination of a protective plate, a sliding plate, a fixed rod, a spring, a positioning plate, and mounting bolts. The sliding plate allows the protective plate to slide on the singeing machine housing, and the spring force pushes the sliding plate to move. The protective plate shields the inner cavity of the first square groove, which helps to keep the inside of the singeing machine housing warm and protect it. At the same time, it helps to seal the inner cavity of the first square groove when the singeing machine housing is not in use, which helps to prevent external dust from continuously entering.

[0030] This invention utilizes a combination of a linkage rope and a guide shaft. When the protective plate moves, it drives the sliding plate to move, which in turn causes the linkage rope to pull the heat-resistant frame to move, raising the heat-resistant frame from the outside of the electric heating plate. At the same time, it opens the inner cavity of the first square groove, which facilitates the continued use of the electric heating plate and makes synchronous operation convenient. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0032] Figure 2This is a front cross-sectional view of the present invention.

[0033] Figure 3 This is a schematic diagram of the fitting structure of the heat-resistant plate in this invention.

[0034] Figure 4 This is a schematic diagram of the front cross-sectional structure of the protective plate of the present invention.

[0035] Figure 5 This is a front cross-sectional view of the support plate of the present invention.

[0036] Figure 6 This is a schematic diagram of the heat-resistant frame structure of the present invention.

[0037] Figure 7 This is a block diagram of the temperature control software structure of the present invention.

[0038] Figure 8 This is a structural block diagram of the data processing module of the present invention.

[0039] In the diagram: 1. Singeing machine housing; 2. Electric heating plate; 3. Protective net; 4. Protective net; 5. Insulation mechanism; 51. Heat-resistant frame; 52. Heat-resistant plate; 53. Sealing block; 54. Baffle; 55. Support plate; 56. Sliding frame; 57. Guide block; 58. Tension spring; 59. Bearing plate; 6. Linkage mechanism; 61. Linkage rope; 62. Guide shaft; 7. Shielding mechanism; 71. Protective plate; 72. Sliding plate; 73. Fixing rod; 74. Spring; 75. Positioning plate; 76. Mounting bolt; 8. Positioning mechanism; 81. Fixing frame; 82. Limiting rod; 83. Elastic rope; 84. Drive plate; 9. Slide plate. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] This invention provides, for example Figure 1-8The singeing machine shown includes a singeing machine housing 1. An electric heating plate 2 is fixedly connected inside the singeing machine housing 1. A first square groove and a second square groove are respectively opened on the top and two sides of the singeing machine housing 1. Slide plates 9 are slidably arranged on both sides of the singeing machine housing 1 for sealing and protecting the inside of the singeing machine housing 1, which helps to shield the inside of the singeing machine housing 1 and thus helps to protect the inside of the singeing machine housing 1 from dust. Insert plates that slide into the singeing machine housing 1 are fixedly connected to the sides of the slide plates 9. A protective net 3 is embedded in the inner cavity of the first square groove to protect the inner cavity of the first square groove. A protective net 4 is embedded in the inner cavity of the second square groove to protect the inner cavity of the second square groove.

[0042] The singeing machine housing 1 is equipped with a heat preservation mechanism 5 for low-temperature protection when the electric heating plate 2 is not in use. The top of the heat preservation mechanism 5 is equipped with a linkage mechanism 6. The top of the singeing machine housing 1 is equipped with a shielding mechanism 7 for forming a sealed cavity inside the first square groove. The shielding mechanism 7 is equipped with a positioning mechanism 8 for limiting the movement of the shielding mechanism 7. The shielding mechanism 7 moves synchronously with the heat preservation mechanism 5 through the linkage mechanism 6.

[0043] The heat insulation mechanism 5 includes a heat-resistant frame 51 and a heat-resistant plate 52. The heat-resistant frame 51, the heat-resistant plate 52, and the sealing block 53 are all heat-insulating materials. The heat-resistant frame 51 and the heat-resistant plate 52 are conducive to sealing the electric heating plate 2, facilitating heat insulation protection of the electric heating plate 2, preventing the electric heating plate 2 from being too low, and reducing the heating time for the next use. The heat-resistant plate 52 is located at the bottom of the heat-resistant frame 51. The heat-resistant frame 51 is slidably disposed on the outside of the electric heating plate 2. The heat-resistant frame 51 is used to cooperate with the heat-resistant plate 52 to form a sealed heat-insulating cavity around the electric heating plate 2.

[0044] The insulation mechanism 5 also includes a sealing block 53, which facilitates the connection and positioning of the heat-resistant frame 51 and the heat-resistant plate 52, and facilitates the sealing of the interior of the heat-resistant frame 51. The bottom end of the sealing block 53 is fixedly connected to the heat-resistant plate 52. The sealing block 53 is used to connect and position the heat-resistant frame 51 and the heat-resistant plate 52. The baffle 54 is used to shield the inner cavity of the second square groove, thereby preventing external dust from entering along the inner cavity of the second square groove. The bottom end of the baffle 54 is fixedly connected to the heat-resistant frame 51. The baffle 54 is used to control the closing and opening of the inner cavity of the second square groove. The support plate 55 is used to facilitate the sliding of the sliding frame 56, and facilitates the sliding support of the sliding frame 56. The support plate 55 is fixedly connected to the interior of the singeing machine housing 1. The support plate 55 is slidably equipped with a sliding frame 56 for driving the vertical movement of the heat-resistant frame 51 and guiding the vertical movement of the heat-resistant frame 51. The sliding frame 56 is L-shaped, and the sliding frame 56 is used to support the heat-resistant frame 51. The support plate 55 is fixedly connected to a bearing plate 59 on one side, which helps to support the tension spring 58. The tension of the tension spring 58 is less than the elastic force of the spring 74. The tension of the tension spring 58 is conducive to pulling the heat-resistant frame 51 to move, and facilitates the heat-resistant frame 51 to return to its original position after movement. The tension spring 58 is fixedly connected between the sliding frame 56 and the bearing plate 59. The tension spring 58 is used to drive the sliding frame 56 to move vertically up and down. One side of the sliding frame 56 is fixedly connected to the heat-resistant frame 51. A first sliding groove is opened on one side of the support plate 55. The sliding frame 56 is slidably inserted into the inner cavity of the first sliding groove. Guide blocks 57 are fixedly connected to both sides of the sliding frame 56, which helps to vertically guide the sliding of the sliding frame 56 and at the same time prevents the sliding frame 56 from detaching from the support plate 55 at will. Guide grooves are opened on both sides of the inner wall of the first sliding groove. Guide blocks 57 are slidably inserted into the inner cavity of the guide groove.

[0045] The shielding mechanism 7 includes a protective plate 71, which effectively shields the inner cavity of the first square groove, thereby providing dust protection and heat insulation for the interior of the singeing machine housing 1. The protective plate 71 is located at the top of the singeing machine housing 1 and forms a sealed protection for the interior of the first square groove. A sliding plate 72 is fixedly connected to the bottom end of the protective plate 71 to drive the protective plate 71 to slide horizontally, facilitating the movement of the protective plate 71 and making it easy to operate. A fixed rod 73 is slidably inserted and connected to one side of the sliding plate 72 to guide the horizontal movement of the sliding plate 72, facilitating the sliding of the sliding plate 72 and guiding the deformation of the spring 74. A positioning plate 75 is fixedly connected to one end of the fixed rod 73 to facilitate the positioning of the spring 74. The rod 73 provides support, facilitating the installation of the fixed rod 73. A mounting bolt 76 is threadedly connected to one side of the inner wall of the first square groove, which facilitates the installation and removal of the positioning plate 75, and consequently the installation and removal of the spring 74. One end of the mounting bolt 76 is threadedly connected to the positioning plate 75. A through groove is provided at the top of the protective plate 71, and a first sliding groove is provided at the top of the singeing machine housing 1. Both the sliding plate 72 and the positioning plate 75 are slidably connected to the inner cavity of the second sliding groove. A spring 74 is sleeved on the outer wall of the fixed rod 73 to drive the sliding plate 72 to move horizontally. The elasticity of the spring 74 facilitates the movement of the sliding plate 72, making it easy for the sliding plate 72 and the protective plate 71 to return to their original positions after movement, and facilitating repeated operation of the protective plate 71. One end of the spring 74 is in contact with the sliding plate 72, and the other end of the spring 74 is in contact with the positioning plate 75.

[0046] The linkage mechanism 6 includes a linkage rope 61 and a guide shaft 62. It facilitates the movement of the sliding plate 72 pulling the heat-resistant frame 51, and makes it easy for the protective plate 71 and the heat-resistant frame 51 to move synchronously. The guide shaft 62 helps to guide the movement of the linkage rope 61 and prevents the linkage rope 61 from deviating from its position at will. One end of the linkage rope 61 is fixedly connected to the sliding plate 72, and the other end of the linkage rope 61 is fixedly connected to the heat-resistant frame 51. The linkage rope 61 is used to make the sliding plate 72 and the heat-resistant frame 51 move synchronously. The guide shaft 62 is fixedly connected to the inside of the singeing machine housing 1. The guide shaft 62 is used to guide the movement of the linkage rope 61. The outer wall of the linkage rope 61 is in contact with the outer wall of the guide shaft 62. A limiting ring for limiting the movement position of the linkage rope 61 is fixedly inserted through the outer wall of the guide shaft 62. The linkage rope 61 is located between adjacent limiting rings.

[0047] The positioning mechanism 8 includes a fixed frame 81, a limiting rod 82, and a drive plate 84. The limiting rod 82 facilitates sliding within the mechanism, limiting the relative position of the protective plate 71 and the singeing machine housing 1. This facilitates the limiting of the protective plate 71 when it blocks the interior of the first square groove, making it easier to install the heat-resistant frame 51 and the heat-resistant plate 52. The drive plate 84 facilitates pulling the limiting rod 82, allowing for easy pulling operations. The bottom end of the fixed frame 81 is fixedly connected to the protective plate 71, and the limiting rod 82 is slidably inserted into the inner cavity of the fixed frame 81. The limiting rod 82 is used to control the position of the protective plate 71 after it has moved. The position is defined, and the top of the limiting rod 82 is fixedly connected to the drive plate 84. The drive plate 84 is used to drive the limiting rod 82 to move up and down in the vertical direction. The limiting rod 82 is slidably inserted into the inner cavity of the through groove. The top of the singeing machine housing 1 is provided with a limiting groove, and the limiting rod 82 is slidably inserted into the inner cavity of the limiting groove. The bottom end of the drive plate 84 is fixedly connected to an elastic rope 83 for driving the drive plate 84 to move vertically. The tension of the elastic rope 83 is conducive to pulling the drive plate 84 to move, making it easy for the drive plate 84 and the limiting rod 82 to return to their original positions after movement, and making it easy to repeat the operation of the limiting rod 82. The bottom end of the elastic rope 83 is fixedly connected to the protective plate 71.

[0048] A temperature control method for a singeing machine includes temperature control software, which comprises a temperature monitoring module for real-time monitoring of the singeing temperature, a data processing module connected to the temperature monitoring module via a data stream for receiving and processing the temperature data, including a data storage module and a data upload module. The data storage module saves the monitored temperature data and forms a database, while the data upload module uploads the real-time monitored temperature data to a backend computer for monitoring. A control module connected to the data processing module via a control stream receives data from the data processing module, makes processing decisions, outputs results, and adjusts the singeing temperature. A human-machine interface module transmits data to the control module via a data stream, providing a user interface for setting temperature control parameters, viewing the current temperature value, and controlling the equipment status.

[0049] How to use this invention:

[0050] When the singeing machine housing 1 needs to be used, the heat-resistant frame 51 is in the following condition: Figure 2As shown, when the singeing machine housing 1 is stopped for a period of time, the protective plate 71 is pushed to move, causing the protective plate 71 to drive the sliding plate 72 to move. The sliding plate 72 slides on the fixed rod 73, and the sliding plate 72 compresses the spring 74. The spring 74 generates elastic force on the sliding plate 72. At the same time, the sliding plate 72 releases the linkage rope 61. At this time, the tension spring 58 is in a stretched state. The tension of the tension spring 58 pulls the sliding frame 56, causing the sliding frame 56 to drive the heat-resistant frame 51 to move downward.

[0051] Simultaneously, the protective plate 72 drives the limiting rod 82 to move, causing the limiting rod 82 to slide and intersect with the inner cavity of the limiting groove. At this time, the position of the protective plate 72 is limited. At the same time, the bottom end of the heat-resistant frame 51 moves to fit with the top end of the heat-resistant plate 52, and the sealing block 53 slides and intersects with the inner cavity of the heat-resistant frame 51, thereby providing heat preservation protection for the electric heating plate 2. At the same time, the heat-resistant frame 51 drives the baffle 54 to block the inner cavity of the second square groove, and the protective plate 71 blocks the inner cavity of the first square groove. The state is as shown in Figure 3. If the singeing machine housing 1 is not used, the sliding plate 9 can be inserted into the singeing machine housing 1 to provide dust protection for the inside of the singeing machine housing 1.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A singeing machine with low-temperature protection function, comprising: The singeing machine housing (1) has an electric heating plate (2) fixedly connected inside it. The top and two sides of the singeing machine housing (1) are respectively provided with a first square groove and a second square groove. The singeing machine housing (1) is characterized by having an internal insulation mechanism (5) for low-temperature protection when the electric heating plate (2) is not in use, a linkage mechanism (6) is provided on the top of the insulation mechanism (5), a shielding mechanism (7) is provided on the top of the singeing machine housing (1) for forming a sealed cavity inside the first square groove, a positioning mechanism (8) is provided on the shielding mechanism (7) for limiting the movement of the shielding mechanism (7), and the shielding mechanism (7) moves synchronously with the insulation mechanism (5) through the linkage mechanism (6). The heat insulation mechanism (5) includes a heat-resistant frame (51) and a heat-resistant plate (52). The heat-resistant plate (52) is located at the bottom of the heat-resistant frame (51). The heat-resistant frame (51) is slidably disposed outside the electric heating plate (2). The heat-resistant frame (51) is used to cooperate with the heat-resistant plate (52) to form a sealed heat-insulating cavity around the electric heating plate (2). The insulation mechanism (5) also includes: A sealing block (53) is fixedly connected to a heat-resistant plate (52) at its bottom end. The sealing block (53) is used to connect and position the heat-resistant frame (51) and the heat-resistant plate (52). Baffle (54), the bottom end of which is fixedly connected to the heat-resistant frame (51), the baffle (54) is used to control the closing and opening of the inner cavity of the second square groove; Support plate (55) is fixedly connected to the inside of the singeing machine housing (1). A sliding frame (56) for driving the heat-resistant frame (51) to move vertically and guiding the vertical movement of the heat-resistant frame (51) is slidably provided on the support plate (55). A bearing plate (59) is fixedly connected to one side of the support plate (55). A tension spring (58) is fixedly connected between the sliding frame (56) and the bearing plate (59). The tension spring (58) is used to drive the sliding frame (56) to move vertically up and down. One side of the sliding frame (56) is fixedly connected to the heat-resistant frame (51). A first sliding groove is provided on one side of the support plate (55). The sliding frame (56) is slidably inserted into the inner cavity of the first sliding groove. Guide blocks (57) are fixedly connected to both sides of the sliding frame (56). Guide grooves are provided on both sides of the inner wall of the first sliding groove. The guide blocks (57) are slidably inserted into the inner cavity of the guide grooves.

2. A singeing machine with low-temperature protection function according to claim 1, characterized in that, The shielding mechanism (7) includes a protective plate (71), which is located at the top of the singeing machine housing (1). The protective plate (71) is used to form a sealed protection for the inside of the first square groove. The bottom end of the protective plate (71) is fixedly connected to a sliding plate (72) for driving the protective plate (71) to slide in the horizontal direction. A fixed rod (73) for guiding the horizontal movement of the sliding plate (72) is slidably inserted on one side of the sliding plate (72). A positioning plate (75) is fixedly connected to one end of the fixed rod (73). A mounting bolt (76) is threadedly inserted on one side of the inner wall of the first square groove. One end of the mounting bolt (76) is threadedly inserted into the positioning plate (75). A through groove is opened at the top of the protective plate (71).

3. A singeing machine with low-temperature protection function according to claim 2, characterized in that, The top of the singeing machine housing (1) is provided with a second sliding groove. The sliding plate (72) and the positioning plate (75) are slidably inserted into the inner cavity of the second sliding groove. The outer wall of the fixing rod (73) is fitted with a spring (74) for driving the sliding plate (72) to move horizontally. One end of the spring (74) is in contact with the sliding plate (72), and the other end of the spring (74) is in contact with the positioning plate (75).

4. A singeing machine with low-temperature protection function according to claim 2, characterized in that, The linkage mechanism (6) includes a linkage rope (61) and a guide shaft (62). One end of the linkage rope (61) is fixedly connected to the sliding plate (72), and the other end of the linkage rope (61) is fixedly connected to the heat-resistant frame (51). The linkage rope (61) is used to make the sliding plate (72) and the heat-resistant frame (51) move synchronously. The guide shaft (62) is fixedly connected to the inside of the singeing machine housing (1). The guide shaft (62) is used to guide the movement of the linkage rope (61). The outer wall of the linkage rope (61) is in contact with the outer wall of the guide shaft (62). The outer wall of the guide shaft (62) is fixedly connected with a limiting ring for limiting the movement position of the linkage rope (61). The linkage rope (61) is located between adjacent limiting rings.

5. A singeing machine with low-temperature protection function according to claim 1, characterized in that, The positioning mechanism (8) includes a fixed frame (81), a limiting rod (82), and a drive plate (84). The bottom end of the fixed frame (81) is fixedly connected to the protective plate (71). The limiting rod (82) is slidably inserted into the inner cavity of the fixed frame (81). The limiting rod (82) is used to limit the position of the protective plate (71) after it moves. The top end of the limiting rod (82) is fixedly connected to the drive plate (84). The drive plate (84) is used to drive the limiting rod (82) to move up and down in the vertical direction.

6. A singeing machine with low-temperature protection function according to claim 5, characterized in that, The limiting rod (82) is slidably inserted into the inner cavity of the through groove. The top of the singeing machine housing (1) is provided with a limiting groove. The limiting rod (82) is slidably inserted into the inner cavity of the limiting groove. The bottom end of the drive plate (84) is fixedly connected with an elastic rope (83) for driving the drive plate (84) to move vertically. The bottom end of the elastic rope (83) is fixedly connected to the protective plate (71).

7. A singeing machine with low-temperature protection function according to claim 1, characterized in that, Both sides of the singeing machine housing (1) are slidably provided with sliding plates (9) for sealing and protecting the inside of the singeing machine housing (1). The sides of the sliding plates (9) are fixedly connected with insert plates that are slidably inserted into the singeing machine housing (1). The inner cavity of the first square groove is provided with a protective net (3), and the inner cavity of the second square groove is provided with a protective net (4).

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