Constant temperature drying oven for rubber preheating

Abstract

The present application relates to dry equipment technical field, and disclose a kind of constant temperature drying oven for rubber preheating, including oven, oven includes cabinet and is installed in the front maintenance bin plate of cabinet by hinged from top to bottom movable, filler bin plate, the bottom of cabinet is fixedly installed with fixed plate, the top wall of the inner chamber of cabinet is also installed with heater, one side of the outer wall of cabinet is installed with driving mechanism, the inner chamber of cabinet is movably provided with positioning mechanism, the surface of positioning mechanism is installed with the spraying mechanism in the inner chamber of cabinet, the top of the inner chamber of cabinet is also installed with temperature detector;The present application is provided with driving mechanism and positioning mechanism and temperature detector, it is favorable to temperature detector bottom temperature measuring end to detect and intelligently identify the rubber surface temperature rising process, and after preheating ends, automatically rubber body separates from high temperature area and enters low temperature area of waiting to discharge, reduce the heat loss in the drying cabinet when rubber body discharges, improve the constant temperature of rubber continuous preheating.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drying equipment, more particularly to a constant-temperature drying oven for rubber preheating. BACKGROUND

[0002] The rubber preheating technology is widely used in rubber processing and can be used for preheating various rubber products such as tires, conveyor belts, rubber pipes and rubber gaskets. Rubber preheating can improve production efficiency and product quality.

[0003] The existing Chinese invention patent (CN108800780B) discloses a drying oven, which relates to the field of drying equipment. The drying oven comprises a box body, a box door, an exhaust pipe connected to the inside of the box body, a first cavity provided in the box body, a second cavity connected to the first cavity, a heating sheet provided in the first cavity, a blower connected to the second cavity and aligned with the first cavity on the side wall of the box body, air outlets provided on the bottom wall and the side wall of the box body, a rotating shaft rotatably connected to the bottom wall of the box body, a fan blade provided on one end of the rotating shaft in the first cavity and a support frame provided on the other end of the rotating shaft in the box body, and a tray provided on the support frame. The drying oven has the following advantages and effects: the tray and the material are indirectly driven to rotate by the blower, the material is blown and dried in multiple directions, the heating surface of the material in the drying oven is more uniform, overheating damage of the material due to uneven heating is avoided, the drying quality and efficiency are improved, the waste of energy and resources is reduced, and the drying rate of the material is improved.

[0004] However, the existing drying oven on the market still has some deficiencies in the preheating process of rubber. How to preheat the rubber by itself, separate the water vapor generated during the heating process of the rubber and the rubber body, automatically separate the rubber body from the high-temperature zone to the low-temperature zone for discharging after the preheating is completed, and reduce the heat loss in the drying oven during the discharging of the rubber body to improve the constant-temperature capability of the rubber during continuous preheating and improve the economic efficiency are problems that need to be solved.

[0005] Therefore, there is an urgent need for a new constant-temperature drying oven for rubber preheating. SUMMARY

[0006] In order to overcome the above-mentioned defects of the prior art, the present application provides a constant-temperature drying oven for rubber preheating to solve the problem of how to preheat the rubber by itself, separate the water vapor generated during the heating process of the rubber and the rubber body, automatically separate the rubber body from the high-temperature zone to the low-temperature zone for discharging after the preheating is completed, and reduce the heat loss in the drying oven during the discharging of the rubber body to improve the constant-temperature capability of the rubber during continuous preheating and improve the economic efficiency.

[0007] The rubber preheating constant-temperature drying box has the advantages that the rubber preheating constant-temperature drying box is capable of achieving the functions of preheating, drying and constant-temperature drying of rubber, and the rubber preheating constant-temperature drying box is capable of achieving the functions of preheating, drying and constant-temperature drying of rubber.

[0008] The driving mechanism comprises a sealing cover, an electric push rod, a rack, a gear, a fixed rotating shaft, a fixed block, a first movable rod, a limiting shaft, a second movable rod and a fixed rod.

[0009] The positioning mechanism comprises a mounting pedestal, a baking table top, a limiting belt, an isolation cover, a servo motor and a roller shaft.

[0010] With the continuous increase of the temperature of the rubber bound to the surface of the baking table top, the temperature detection end at the bottom of the temperature detector detects the temperature rising process of the rubber surface and forms temperature information, and when the temperature threshold value is reached, a temperature judgment signal is output to the controller, the temperature judgment signal is received by the controller and a control instruction is output to the electric push rod and the mounting pedestal, the movable end of the electric push rod is driven to retract the rack connected thereto inward, the whole positioning mechanism is moved downward, the output shaft of the servo motor is driven to drive the roller shaft and the baking table top fixedly sleeved on the surface of the roller shaft, the baking table top is reversely rotated around the roller shaft as the axis, the baking table top is reversely rotated by 180 degrees, the positioning mechanism is moved downward to the initial position, the wide sidewall of the baking table top blocks the top of the L-shaped liquid drop cavity, the L-shaped liquid drop cavity is blocked, the mounting pedestal and the baking table top divide the inner cavity of the box into two independent chambers, and the warm gas in the upper chamber of the box is blocked in the sealed space.

[0011] Further, the sealing cover is fixedly installed on the outer wall of the box, one side wall of the bottom of the sealing cover is fixedly penetrated by the fixed end of the electric push rod, the movable end of the electric push rod is fixedly connected with the rack, the top surface of the rack and the contact surface of the gear are in meshing relationship, the gear is movably sleeved on the surface of the fixed rotating shaft, the fixed rotating shaft is fixedly installed on the outer wall of the box through the fixed block connected thereto, the back surface of the gear is fixedly connected with one end of the first movable rod movably sleeved on the surface of the fixed rotating shaft, the other end of the first movable rod is movably sleeved with the limiting shaft, the limiting shaft is further fixedly sleeved with one bottom end of the second movable rod, and the top end of the second movable rod away from the limiting shaft is fixedly sleeved with the fixed rod.

[0012] Further, a sliding groove for fixing the up-and-down movement of the rod is formed on the side wall of the box body, and the end of the fixing rod away from the second movable rod is fixedly connected with the side wall of the mounting pedestal.

[0013] Further, when the movable end of the electric push rod drives the connected rack to be in a fully retracted state, the second movable rod connected with the fixing rod is driven to be at the bottom end of the sliding groove through the gear, the first movable rod and the limiting shaft.

[0014] Further, the rack, the gear, the fixed rotating shaft, the fixed block, the first movable rod, the limiting shaft, the second movable rod, the fixing rod and the sliding groove are all sealed in the inner cavity of the sealing cover.

[0015] Further, the four corners of the mounting pedestal are movably penetrated by the columns at the corners of the inner cavity of the box body, the inside of the mounting pedestal is movably provided with a baking table top, the surface of the baking table top is provided with a limiting belt for binding rubber, one end of the mounting pedestal is fixedly provided with an isolation cover, the inside of the isolation cover is provided with a servo motor, and the output shaft of the servo motor is fixedly connected with a roller shaft penetrating the inside of the baking table top.

[0016] Further, the baking table top is provided in a double-layer structure, the upper layer has a smaller cross-sectional width than the lower layer, and when the narrow end of the baking table top is upward and the wide end is downward, the L-shaped drip cavity formed in the side wall of the mounting pedestal has a gap between the narrow side wall of the baking table top, so that water can drip through the gap.

[0017] Further, the spraying mechanism comprises a movable sub-rod, a fixed mother pipe, a spraying head and a hose, the movable sub-rod is fixedly penetrated through the side wall of the mounting pedestal, the bottom end of the movable sub-rod is movably penetrated in the inner cavity of the fixed mother pipe, the bottom of the fixed mother pipe is fixedly installed on the inner side wall of the box body, the bottom end of the fixed mother pipe is fixedly installed with the spraying head, and the inner cavity of the fixed mother pipe is fixedly connected with the gas supply source through the hose.

[0018] Further, the liquid collecting mechanism comprises a liquid collecting box installed on the bottom surface of the inner cavity of the box body and a sewage valve installed on the side wall of the liquid collecting box, the output end of the sewage valve penetrates the side wall of the fixed plate, the outer end of the hose extends to the side wall of the fixed plate and is connected with the output end of the gas supply source after penetrating the wall body of the fixed plate, and the gas supply source can be a blower.

[0019] The technical effects and advantages of the present application are as follows:

[0020] The application has the temperature detection end of the bottom of the temperature detector to detect and intelligently identify the rubber surface temperature rising process, after the preheating temperature of the rubber reaches the predetermined temperature value, the movable end of the electric push rod drives the connected rack to retract inward, so that the positioning mechanism moves downward, the output shaft of the servo motor drives the connected roller shaft and the baking table surface fixed on the surface of the roller shaft, so that the baking table surface reversely rotates, the positioning mechanism moves downward to the original position, at this time, the wide side wall of the baking table surface will block the top of the L-shaped liquid drop cavity, the rubber is preheated, the water vapor generated during the heating process of the rubber and the rubber body are separated, after the preheating is finished, the rubber body is automatically separated from the high temperature area and enters the low temperature area for discharging, and at the same time, the heat loss in the drying box body is reduced when the rubber body is discharged, so that the constant temperature capacity of the rubber continuous preheating is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure one side view schematic diagram of the application.

[0022] Figure 2 It is another side view schematic diagram of the whole structure of the application.

[0023] Figure 3 It is a whole structure and its local section structure schematic diagram of the application.

[0024] Figure 4 It is a Figure 3 Structure schematic diagram of A in the application.

[0025] Figure 5 It is a connection structure schematic diagram of the internal structure of the box body and the driving mechanism of the application.

[0026] Figure 6 It is a positioning mechanism, spraying mechanism and liquid collecting mechanism structure schematic diagram of the application.

[0027] Figure 7 It is a Figure 6 Structure schematic diagram of B in the application.

[0028] Figure 8 It is a Figure 6 Structure schematic diagram of C in the application.

[0029] The figure marks are: 1, oven; 101, box body; 102, heater; 103, maintenance warehouse board; 104, filler warehouse board; 105, fixed plate; 106, chute; 2, driving mechanism; 201, sealing cover; 202, electric push rod; 203, rack; 204, gear; 205, fixed rotating shaft; 206, fixed block; 207, first movable rod; 208, limiting shaft; 209, second movable rod; 210, fixed rod; 3, positioning mechanism; 301, mounting pedestal; 302, baking table top; 303, limiting belt; 304, isolation cover; 305, servo motor; 306, roller shaft; 307, L-shaped liquid drop cavity; 4, spraying mechanism; 401, movable sub-rod; 402, fixed mother pipe; 403, spraying head; 404, hose; 5, stand column; 6, liquid collecting mechanism; 601, liquid collecting box; 602, blowdown valve; 7, temperature detector; 8, controller. DETAILED DESCRIPTION

[0030] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application, and in addition, the forms of each structure described in the following embodiments are only examples, and the constant temperature drying oven for rubber preheating involved in the present application is not limited to each structure described in the following embodiments, and all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0031] Reference Figures 1-8 The present application provides a constant temperature drying oven for rubber preheating, which comprises an oven 1, the oven 1 comprises a box body 101 and a maintenance warehouse board 103 and a filler warehouse board 104 which are installed on the front of the box body 101 from top to bottom by hinges, a fixed plate 105 is fixedly installed at the bottom of the box body 101, and a heater 102 is further installed on the top wall of the inner cavity of the box body 101;

[0032] A driving mechanism 2 is installed on one side of the outer wall of the box body 101, a positioning mechanism 3 is movably arranged in the inner cavity of the box body 101, a spraying mechanism 4 is installed on the surface of the positioning mechanism 3 and located in the inner cavity of the box body 101, the four corners of the positioning mechanism 3 are movably sleeved with stand columns 5 installed at the corners of the inner cavity of the box body 101, a liquid collecting mechanism 6 is installed at the bottom of the inner cavity of the box body 101, a temperature detector 7 is further installed at the top of the inner cavity of the box body 101, and a controller 8 is further installed on the other side of the outer wall of the box body 101;

[0033] With the rubber temperature bound to the surface of the baking platform 302 rising, the temperature detection end at the bottom of the temperature detector 7 detects the heating process of the rubber surface and forms temperature information, and when reaching the set temperature threshold, outputs a temperature judgment signal to the controller 8. The controller 8 receives the temperature judgment signal and outputs a control instruction to the electric push rod 202 and the mounting seat 301, controls the active end of the electric push rod 202 to retract the connected rack 203 inward, so that the positioning mechanism 3 moves downward as a whole, and controls the output shaft of the servo motor 305 to drive the roller shaft 306 and the baking platform 302 fixed on the surface of the roller shaft 306 to rotate counterclockwise around the roller shaft 306 as the axis, so that the baking platform 302 rotates counterclockwise by 180 degrees, and the positioning mechanism 3 moves downward to the initial position. At this time, the wide side wall of the baking platform 302 will block the top of the L-shaped liquid drop cavity 307, and the L-shaped liquid drop cavity 307 will be blocked. At this time, the mounting seat 301 and the baking platform 302 will separate the upper and lower layers of the inner cavity of the box 101 into two independent cavities, so that the warm gas in the upper cavity of the box 101 is sealed in a closed space.

[0034] Referring to Figures 3-5 , the driving mechanism 2 includes a sealing cover 201, an electric push rod 202, a rack 203, a gear 204, a fixed rotating shaft 205, a fixed block 206, a first movable rod 207, a limiting shaft 208, a second movable rod 209, and a fixed rod 210. The sealing cover 201 is fixedly installed on the outer wall of the box 101, and the bottom side wall of the sealing cover 201 is fixedly penetrated by the fixed end of the electric push rod 202. The active end of the electric push rod 202 is fixedly connected with the rack 203. The top surface of the rack 203 and the contact surface of the gear 204 are in meshing relationship. The gear 204 is movably sleeved on the surface of the fixed rotating shaft 205. The fixed rotating shaft 205 is fixedly installed on the outer wall of the box 101 through the fixed block 206 connected thereto. The back surface of the gear 204 is fixedly connected with one end of the first movable rod 207 movably sleeved on the surface of the fixed rotating shaft 205. The other end of the first movable rod 207 is movably sleeved with the limiting shaft 208. The limiting shaft 208 is also fixedly sleeved with one bottom end of the second movable rod 209. The top end of the second movable rod 209 away from the limiting shaft 208 is fixedly sleeved with the fixed rod 210.

[0035] In this embodiment, it is necessary to specifically explain that the side wall of the box 101 is also provided with a sliding groove 106 for the up-down movement of the fixed rod 210. The end of the fixed rod 210 away from the second movable rod 209 is fixedly connected with the side wall of the mounting seat 301.

[0036] When the movable end of the electric push rod 202 drives the rack 203 connected thereto to be in the fully retracted state, the second movable rod 209 connected to the fixed rod 210 is driven by the gear 204, the first movable rod 207 and the limiting shaft 208 to be at the bottom end of the sliding groove 106.

[0037] The rack 203, the gear 204, the fixed rotating shaft 205, the fixed block 206, the first movable rod 207, the limiting shaft 208, the second movable rod 209, the fixed rod 210 and the sliding groove 106 are all sealed in the inner cavity of the sealing cover 201 for sealing treatment.

[0038] Referring to Figures 5-8 The positioning mechanism 3 comprises a mounting pedestal 301, a baking table 302, a limiting belt 303, an isolation cover 304, a servo motor 305 and a roller shaft 306. The mounting pedestal 301 is movably penetrated by the upright column 5 at the corners of the inner cavity of the box body 101. The baking table 302 is movably arranged inside the mounting pedestal 301. The baking table 302 is provided with the limiting belt 303 for binding rubber on the surface. The isolation cover 304 is fixedly installed at one end of the mounting pedestal 301. The servo motor 305 is installed inside the isolation cover 304. The output shaft of the servo motor 305 is fixedly connected with the roller shaft 306 which is fixedly penetrated through the inside of the baking table 302.

[0039] In this embodiment, it is particularly pointed out that the baking table 302 is provided with a double-layer structure with the upper layer having a smaller cross-sectional width than the lower layer. When the narrow end of the baking table 302 is turned upward and the wide end is turned downward, the L-shaped drip cavity 307 formed in the side wall of the mounting pedestal 301 has a gap between the narrow side wall of the baking table 302 to allow water to drip through.

[0040] Referring to Figure 5 And Figure 6 And Figure 8 The spraying mechanism 4 comprises a movable sub-rod 401, a fixed main pipe 402, a spraying head 403 and a hose 404. The movable sub-rod 401 is fixedly penetrated through the side wall of the mounting pedestal 301. The bottom end of the movable sub-rod 401 is movably penetrated through the inner cavity of the fixed main pipe 402. The bottom of the fixed main pipe 402 is fixedly installed on the inner side wall of the box body 101. The bottom end of the fixed main pipe 402 is fixedly installed with the spraying head 403. The inner cavity of the fixed main pipe 402 is fixedly connected with the gas supply source through the hose 404.

[0041] The liquid collecting mechanism 6 comprises a liquid collecting box 601 installed on the bottom surface of the inner cavity of the box body 101 and a drain valve 602 installed on the side wall of the liquid collecting box 601. The output end of the drain valve 602 is penetrated through the side wall of the fixed plate 105.

[0042] In this embodiment, it needs to be specifically pointed out that the outer end of the hose 404 extends to the side wall of the fixed plate 105 and penetrates through the wall of the fixed plate 105 and is connected with the output end of the air supply source, and the air supply source can be provided as a blower.

[0043] The working principle of the present application is as follows:

[0044] S1, open the filler bin plate 104, install the rubber to be preheated on the surface of the baking table top 302, and bind the rubber to be preheated on the surface of the baking table top 302 with the limiting belt 303 outside the baking table top 302, then close the filler bin plate 104, and press the start button of the servo motor 305 on the surface of the controller 8 to control the output shaft of the servo motor 305 to drive the roller shaft 306 connected thereto and the baking table top 302 fixedly sleeved on the surface of the roller shaft 306 to make the baking table top 302 rotate 180 degrees in the positive direction, so that the rubber to be preheated bound on the surface of the baking table top 302 by the limiting belt 303 is adjusted from vertical downward to vertical upward;

[0045] S2, press the start button of the electric push rod 202 on the surface of the controller 8 to control the movable end of the electric push rod 202 to drive the rack 203 connected thereto to extend outward, and in the process of moving outward, the gear 204 meshing with the top of the rack 203 will rotate along the surface of the fixed rotating shaft 205 installed outside the side wall of the box body 101 through the fixed block 206, and the first movable rod 207 fixedly connected to the back of the gear 204 will rotate around the fixed rotating shaft 205, and the end of the first movable rod 207 away from the gear 204 will lift the limiting shaft 208 movably sleeved thereto and the second movable rod 209 fixedly sleeved at the end of the limiting shaft 208 upward, and the fixed rod 210 sleeved at the end of the second movable rod 209 away from the limiting shaft 208 will move in the sliding slot 106 in the side wall of the box body 101 from bottom to top, and push the mounting pedestal 301 connected with the fixed rod 210 upward, and the whole positioning mechanism 3 moves upward along the surface of the stand 5 movably sleeved at four corners, until the rack 203 connected with the electric push rod 202 extends to the maximum length, at this time, the first movable rod 207 and the limiting shaft 208 are completely unfolded, so that the positioning mechanism 3 moves to the top of the inner cavity of the box body 101 and is close to the bottom of the heater 102, and the preheating process of the rubber is carried out, and at this time, the rubber bound on the surface of the baking table top 302 touches the temperature measuring end of the temperature detector 7 at the bottom;

[0046] S3, simultaneously with S3, during the process of upward movement of the positioning mechanism 3, the mounting pedestal 301 will drive the movable sub-rod 401 fixedly sleeved therewith to stretch upward along the inner cavity of the fixed mother pipe 402, so that the pressure between the fixed mother pipe 402 and the inner cavity of the movable sub-rod 401 gradually decreases and forms negative pressure, and then the gas output by the gas supply source is sucked into the inner cavity of the fixed mother pipe 402 through the hose 404, and the water vapor generated during the rubber heating process will be dripped into the inside of the liquid collecting box 601 through the L-shaped drip cavity 307 opened in the narrow side wall of the mounting pedestal 301 for storage;

[0047] S4, accompanying the continuous increase of the temperature of the rubber bound on the surface of the baking table 302, the temperature detection end at the bottom of the temperature detector 7 detects the heating process of the rubber surface and forms temperature information, and when the temperature threshold value set by it is reached, a temperature judgment signal is output to the controller 8, the controller 8 receives the temperature judgment signal and outputs control instructions to the electric push rod 202 and the mounting pedestal 301, the movable end of the electric push rod 202 drives the rack 203 connected thereto to retract inward, that is, the driving process opposite to S2, so that the positioning mechanism 3 moves downward, at the same time, the output shaft of the servo motor 305 drives the roller shaft 306 connected thereto and the baking table 302 fixedly sleeved on the surface of the roller shaft 306 to make reverse circumferential rotation around the roller shaft 306, so that the baking table 302 rotates reversely by 180 degrees, that is, the driving process opposite to S1, so that the positioning mechanism 3 moves downward to the initial position, at this time, the wide side wall of the baking table 302 will block the top of the L-shaped drip cavity 307, and the L-shaped drip cavity 307 will be blocked, at this time, the mounting pedestal 301 and the baking table 302 will separate the upper and lower layers of the inner cavity of the box 101 into two independent cavities, so that the warm gas in the upper cavity of the box 101 is locked in a closed space and does not dissipate;

[0048] S5, simultaneously with S4, during the process of upward movement of the positioning mechanism 3, the mounting pedestal 301 will drive the movable sub-rod 401 fixedly sleeved therewith to stretch upward along the inner cavity of the fixed mother pipe 402, so that the pressure between the fixed mother pipe 402 and the inner cavity of the movable sub-rod 401 gradually decreases and forms negative pressure, and then the gas output by the gas supply source is sucked into the inner cavity of the fixed mother pipe 402 through the hose 404, and the water vapor generated during the rubber heating process will be dripped into the inside of the liquid collecting box 601 through the L-shaped drip cavity 307 opened in the narrow side wall of the mounting pedestal 301 for storage;

[0049] S6, open the filler bin plate 104 again, take out the preheated rubber from the limiting belt 303 outside the baking table 302, and then perform the cycle operation process of S1-S5 to perform the rubber integrated automatic continuous constant temperature preheating operation.

[0050] The above merely describes a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art should understand that, within the technical scope disclosed by the present application, equivalent substitutions or modifications can be made according to the technical plan of the present application and its improved conception, and these should all be included in the protection of the present application.

Claims

1. A constant temperature drying oven for rubber preheating, comprising an oven (1), wherein the oven (1) comprises a box body (101) and an inspection compartment plate (103) and a filler compartment plate (104) that are movably installed from top to bottom on the front of the box body (101) via hinges, a fixing plate (105) is fixedly installed at the bottom of the box body (101), and heaters (102) are also installed on both sides of the top wall of the inner cavity of the box body (101), characterized in that: The driving mechanism (2) is installed on one side of the outer wall of the box (101), the positioning mechanism (3) is movably arranged in the inner cavity of the box (101), the two sides of the surface of the positioning mechanism (3) are installed with the spraying mechanism (4) located in the inner cavity of the box (101), the four corners of the positioning mechanism (3) are movably sleeved with the stand (5) installed at the corner of the inner cavity of the box (101), the liquid collecting mechanism (6) is installed at the bottom of the inner cavity of the box (101), the temperature detector (7) is also installed at the top of the inner cavity of the box (101), and the controller (8) is also installed on the other side of the outer wall of the box (101). The driving mechanism (2) comprises a sealing cover (201), an electric push rod (202), a rack (203), a gear (204), a fixed rotating shaft (205), a fixed block (206), a first movable rod (207), a limiting shaft (208), a second movable rod (209) and a fixed rod (210). The positioning mechanism (3) comprises a mounting pedestal (301), a baking table top (302), a limiting belt (303), an isolation cover (304), a servo motor (305) and a roller shaft (306). With the continuous rise of the temperature of the rubber surface bound on the surface of the baking table top (302), the temperature detection end at the bottom of the temperature detector (7) detects the heating process of the rubber surface and forms temperature information, and when the temperature threshold value is reached, a temperature judgment signal is output to the controller (8), the temperature judgment signal is received by the controller (8) and a control instruction is output to the electric push rod (202) and the mounting pedestal (301), the movable end of the electric push rod (202) drives the rack (203) connected thereto to retract inward, so that the positioning mechanism (3) moves downward as a whole, and the output shaft of the servo motor (305) drives the roller shaft (306) and the baking table top (302) fixedly sleeved on the surface of the roller shaft (306) to rotate counterclockwise around the roller shaft (306) as the axis, so that the baking table top (302) rotates counterclockwise by 180 degrees, and the positioning mechanism (3) moves downward to the initial position, at this time, the wide side wall of the baking table top (302) will block the top of the L-shaped liquid drop cavity (307), and the L-shaped liquid drop cavity (307) is blocked, at this time, the mounting pedestal (301) and the baking table top (302) divide the upper and lower layers of the inner cavity of the box (101) into two independent cavities, so that the warm gas in the upper cavity of the box (101) is blocked in the sealed space.

2. The constant temperature drying oven for rubber preheating according to claim 1, characterized in that: The sealing cover (201) is fixedly installed on the outer wall of the box body (101), one side wall of the bottom of the sealing cover (201) is fixedly penetrated by the fixed end of the electric push rod (202), the movable end of the electric push rod (202) is fixedly connected with the rack (203), the top surface of the rack (203) and the contact surface of the gear (204) are in meshing relationship, the gear (204) is movably sleeved on the surface of the fixed rotating shaft (205), the fixed rotating shaft (205) is fixedly installed on the outer wall of the box body (101) through the fixed block (206) connected therewith, the back surface of the gear (204) is fixedly connected with one end of the first movable rod (207) movably sleeved on the surface of the fixed rotating shaft (205), the other end of the first movable rod (207) is movably sleeved with the limiting shaft (208), the limiting shaft (208) is also fixedly sleeved with one bottom end of the second movable rod (209), and the top end, away from the limiting shaft (208), of the second movable rod (209) is fixedly sleeved with the fixed rod (210).

3. The constant temperature drying oven for rubber preheating according to claim 1, characterized in that: The side wall of the box body (101) is also provided with a sliding groove (106) for the up-down movement of the fixed rod (210), and the end, away from the second movable rod (209), of the fixed rod (210) is fixedly connected with the side wall of the mounting pedestal (301).

4. The constant temperature drying oven for rubber preheating according to claim 1, characterized in that: When the movable end of the electric push rod (202) drives the rack (203) connected therewith to be in the completely contracted state, the second movable rod (209) connected with the fixed rod (210) is driven by the gear (204), the first movable rod (207) and the limiting shaft (208) to be in the position at the bottom end of the sliding groove (106).

5. The constant temperature drying oven for rubber preheating according to claim 1, characterized in that: The rack (203), the gear (204), the fixed rotating shaft (205), the fixed block (206), the first movable rod (207), the limiting shaft (208), the second movable rod (209), the fixed rod (210) and the sliding groove (106) are all sealed in the inner cavity of the sealing cover (201).

6. The constant temperature drying oven for rubber preheating according to claim 1, characterized in that: The four corners of the mounting pedestal (301) are movably penetrated by the stand (5) at the corners in the inner cavity of the box body (101), the inside of the mounting pedestal (301) is movably provided with the baking table top (302), the surface of the baking table top (302) is provided with the limiting belt (303) for binding rubber, one end of the mounting pedestal (301) is fixedly installed with the isolation cover (304), the inside of the isolation cover (304) is installed with the servo motor (305), and the output shaft of the servo motor (305) is fixedly connected with the roller shaft (306) fixedly penetrating the inside of the baking table top (302).

7. The thermostatic drying oven for rubber preheating according to claim 1, characterized in that: The baking table top (302) is provided as a double-layer structure, the upper layer has a smaller cross section width than the lower layer, and when the narrow end of the baking table top (302) is upward and the wide end is downward, the L-shaped drip cavity (307) formed in the side wall of the mounting pedestal (301) has a gap capable of allowing water to drip through between the narrow side wall of the baking table top (302).

8. The thermostatic drying oven for rubber preheating according to claim 1, characterized in that: The spraying mechanism (4) comprises a movable sub-shaft (401), a fixed female pipe (402), a spraying head (403) and a hose (404), wherein the movable sub-shaft (401) is fixedly penetrated through the side wall of the mounting pedestal (301), the bottom end of the movable sub-shaft (401) is movably penetrated in the inner cavity of the fixed female pipe (402), the bottom of the fixed female pipe (402) is fixedly installed on the inner side wall of the box body (101), the bottom end of the fixed female pipe (402) is fixedly installed with the spraying head (403), and the inner cavity of the fixed female pipe (402) is fixedly connected with the gas supply source through the hose (404).

9. The thermostatic drying oven for rubber preheating according to claim 8, characterized in that: The liquid collecting mechanism (6) comprises a liquid collecting box (601) installed on the bottom surface of the inner cavity of the box body (101) and a blowdown valve (602) installed on the side wall of the liquid collecting box (601), the output end of the blowdown valve (602) is penetrated through the side wall of the fixed plate (105), the outer end of the hose (404) extends to the side wall of the fixed plate (105) and is connected with the output end of the gas supply source after being penetrated through the wall body of the fixed plate (105), and the gas supply source can be a blower.

Images