Hot melt adhesive drying device for vehicle

Abstract

The utility model discloses a hot melt adhesive drying device for a vehicle, which relates to the technical field of hot melt adhesive drying equipment and comprises a drying oven, a discharging barrel rotatably arranged in the drying oven and a drying machine mounted on the outer wall of the drying oven, one side of the drying oven and one side of the discharging barrel are open, and a box cover is hinged to the open end of the discharging barrel. The output end of the drying machine is communicated with an air pipe, the tail end of the air pipe penetrates into the inner side of the drying oven, and the pressure relief mechanism is used for enhancing the use safety of the drying oven; through the arrangement of the pressure relief mechanism, when the drying machine is started and the internal pressure of the drying oven is gradually increased, the shielding sealing plate in the sealing part can slide upwards along the inner wall of the pressure relief cylinder under the action of the pressure, and then when the shielding sealing plate slides upwards to the pressure relief opening and the opening of the shielding pressure relief opening is not blocked, the pressure relief cylinder is closed. Therefore, high-pressure gas in the oven can be quickly discharged outwards through the pressure relief opening, the pressure in the oven is properly weakened, and the situation that the safety of the oven is affected when the oven is used due to the fact that the pressure difference inside and outside the oven is too large is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot melt adhesive drying equipment technical field, concretely relates to a kind of hot melt adhesive drying device for vehicle. BACKGROUND

[0002] Hot melt adhesive is a solvent-free, 100% solid water-free fusible polymer. Hot melt adhesive is solid at room temperature, and becomes a liquid that can flow and has certain viscosity when heated to a certain temperature. The hot melt adhesive after melting is light brown or white. Hot melt adhesive is composed of basic resin, tackifier, viscosity regulator and antioxidant. The basic resin of hot melt adhesive is the copolymer of ethylene and vinyl acetate at high temperature and high pressure. The proportion and quality of basic resin determine the basic performance of hot melt adhesive.

[0003] The prior art patent No. CN221666444U drying device for hot melt adhesive production, the above-mentioned patent by setting rotation unit driven by motor main shaft rotation, make the main shaft drive discharge barrel rotation, make inside hot melt raw material large range up and down, make the turning more uniform, avoid hot melt raw material accumulation, lead to uneven drying, solve the problem of limitation of oven rotation in use process in background technology, part of the material cannot be turned evenly, there is uneven drying problem, by setting discharging unit under the action of hydraulic cylinder drive hydraulic rod telescopic, make the push plate move along the inner wall of discharge barrel, push out the hot melt adhesive after drying, improve discharging efficiency;

[0004] However, when the hot melt adhesive raw material is added into the discharge barrel and the box cover is closed, the oven inside is sealed, and when the drying machine is opened to continuously input hot air into the oven to dry the raw material, the pressure inside the oven also gradually increases. After a certain period of time, there is a significant pressure difference between the inside and outside of the oven, and the box cover is extremely easy to burst or deform under the pressure difference, which seriously affects the safety of the oven during use. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, a hot melt adhesive drying device for vehicle is provided, which solves the problem of the prior art that when the hot melt adhesive raw material is added into the discharge barrel and the box cover is closed, the oven inside is sealed, and when the drying machine is opened to continuously input hot air into the oven to dry the raw material, the pressure inside the oven also gradually increases. After a certain period of time, there is a significant pressure difference between the inside and outside of the oven, and the box cover is extremely easy to burst or deform under the pressure difference, which seriously affects the safety of the oven during use.

[0006] In order to achieve the above object, the utility model adopts the technical scheme: a kind of hot melt adhesive drying device for vehicle, including oven, rotatable setting in the discharge barrel of the oven and installing on the drying machine of the oven outer wall, the oven and the side of the discharge barrel are all open, the open end of the discharge barrel is hinged with lid, the output end of the drying machine is connected with air pipe, the end of the air pipe penetrates into the inside of the oven, further including pressure relief mechanism for enhancing the safety of the oven when using;

[0007] The pressure relief mechanism includes a pressure relief cylinder fixedly penetrating the inner wall of the top end of the oven and a plurality of pressure relief openings around the pressure relief cylinder located on the outer cylinder wall of the oven, and the pressure relief cylinder has a sealing part corresponding to the pressure relief openings built-in, and the pressure relief cylinder has a rotating shielding part built-out for preventing dust from entering the inside of the pressure relief openings.

[0008] Preferably, the sealing part is a shielding sealing plate with one end open, and the outer wall of the shielding sealing plate is attached to the inner wall of the pressure relief cylinder through a rubber pad.

[0009] Preferably, the rotating shielding part includes a plurality of L-shaped connecting frames around the outer wall of the pressure relief cylinder, the vertical section of the connecting frame corresponds to the pressure relief opening, and the open inside of the top of the pressure relief cylinder is horizontally fixed with a mounting bracket, and the mounting bracket is provided with a power assembly.

[0010] Preferably, the power assembly includes a driving internal threaded sleeve vertically rotatingly arranged in the central inner wall of the mounting bracket and a connecting sleeve fixed to the top end face of the driving internal threaded sleeve, and the horizontal section of the connecting frame is fixedly connected with the outer wall of the connecting sleeve.

[0011] Preferably, a transmission screw is threaded through the inside of the mounting bracket, and the bottom end of the transmission screw is fixedly connected with the shielding sealing plate.

[0012] Preferably, a telescopic rod is fixed between the mounting bracket and the shielding sealing plate.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) By the setting of pressure relief mechanism, when the drying machine is opened and the internal pressure of the oven is gradually increased, the shielding sealing plate in the sealing part can slide along the inner wall of the pressure relief cylinder under the action of pressure, and then when the shielding sealing plate slides through the pressure relief opening, the high-pressure gas in the oven can be quickly discharged outward through the pressure relief opening without plugging the pressure relief opening, which appropriately weakens the internal pressure of the oven and avoids the difference between the internal and external pressures of the oven being too large, affecting the safety of the oven when using.

[0015] (2) through the setting of the rotating shielding part, when the pressure inside and outside the oven is balanced to a certain extent, the shielding sealing plate is reset under its own gravity with the driving screw rod, thereby driving the reverse rotation of the inner threaded rotating sleeve under the threaded structure, reversely deflecting the connecting frame to the position corresponding to the pressure relief port, sealing the pressure relief port, and effectively preventing dust and impurities in the external air from entering the pressure relief port and causing plugging inside the pressure relief port. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is an internal structure schematic view of the utility model;

[0018] Figure 3 It is the utility model Figure 2 A structure schematic view of the utility model.

[0019] Reference signs in the drawings are:

[0020] 1, oven; 2, box cover; 3, discharge barrel; 4, motor; 5, push plate; 6, hydraulic cylinder; 7, driving screw rod; 8, drying machine; 9, air pipe; 10, pressure relief cylinder; 11, pressure relief port; 12, shielding sealing plate; 13, connecting frame; 14, mounting frame; 15, telescopic rod; 16, driving inner threaded rotating sleeve; 17, connecting sleeve. DETAILED DESCRIPTION

[0021] The following description is used to disclose the utility model so that those skilled in the art can realize the utility model. The preferred embodiments in the following description are only as examples, and those skilled in the art can think of other obvious variations.

[0022] Referring to Figure 1 , Figure 2 and Figure 3 As shown in the figure, a hot melt adhesive drying device for vehicle includes an oven 1, a discharge barrel 3 rotatably arranged in the oven 1, and a drying machine 8 mounted on the outer wall of the oven 1. One side of the oven 1 and the discharge barrel 3 is open. The open end of the discharge barrel 3 is hinged with a box cover 2. The output end of the drying machine 8 is connected with an air pipe 9, and the end of the air pipe 9 penetrates into the inside of the oven 1.

[0023] The closed end of the oven 1 is provided with a motor 4. The output shaft of the motor 4 penetrates into the oven 1 and is fixedly connected with the closed end of the discharge barrel 3.

[0024] The inside of the discharge barrel 3 is slidably provided with a push plate 5. The inner wall of the innermost side of the discharge barrel 3 is provided with a hydraulic cylinder 6. The telescopic end of the hydraulic cylinder 6 is fixedly connected with the push plate 5.

[0025] In use, open the box cover 2, put the hot melt adhesive raw material into the discharge barrel 3, then close the box cover 2, seal the inner cavity of the oven 1, then start the dryer 8, the hot air can be continuously input into the inner cavity of the oven 1 through the air pipe 9 to dry the raw material, in this process, the motor 4 drives the discharge barrel 3 to rotate, so that the hot melt adhesive raw material in the discharge barrel 3 is turned back and forth, thereby improving the drying efficiency, after drying, open the box cover 2, start the hydraulic cylinder 6, drive the push plate 5 to extend and retract under the action of the hydraulic cylinder 6, make the push plate 5 move along the inner wall of the discharge barrel 3, and push the dried hot melt adhesive raw material out.

[0026] However, when the dryer 8 is turned on to continuously input hot air into the oven 1, the pressure in the oven 1 also gradually increases, after a certain period of time, there is a significant pressure difference between the inside and outside of the oven 1, and the box cover 2 is extremely easy to burst or deform under the pressure difference, which seriously affects the safety of the oven 1 in use;

[0027] Therefore, referring to Figure 2 and Figure 3 It is worth noting that it also includes a pressure relief mechanism for enhancing the safety of the oven 1 in use;

[0028] The pressure relief mechanism includes a pressure relief cylinder 10 fixedly arranged in the inner wall of the top end of the oven 1 and a plurality of pressure relief ports 11 arranged around the cylinder wall of the pressure relief cylinder 10 outside the oven 1, and the pressure relief cylinder 10 is internally provided with a sealing part corresponding to the pressure relief port 11;

[0029] The sealing part is a shielding sealing plate 12 with one end open, and the outer wall of the shielding sealing plate 12 is attached to the inner wall of the pressure relief cylinder 10 through a rubber pad;

[0030] Through the arrangement of the pressure relief mechanism, when the dryer 8 is turned on to gradually increase the pressure in the oven 1, the shielding sealing plate 12 in the sealing part can slide along the inner wall of the pressure relief cylinder 10 under the action of the pressure, and when the shielding sealing plate 12 slides through the pressure relief port 11 and no longer blocks the opening of the pressure relief port 11, the high-pressure gas in the oven 1 can be quickly discharged to the outside through the pressure relief port 11, appropriately weakening the pressure in the oven 1, avoiding the pressure difference between the inside and outside of the oven 1 being too large, and affecting the safety of the oven 1 in use.

[0031] However, after the raw material is dried, water vapor is generated, which is discharged to the outside through the pressure relief port 11, which is extremely easy to cause the inside of the pressure relief port 11 to be wet, and if the opening on one side of the pressure relief port 11 is directly exposed to the outside, dust and impurities in the external air will enter the inside of the pressure relief port 11 and be absorbed by the water vapor, which will easily cause the inside of the pressure relief port 11 to be blocked over a long period of time, affecting the rate of hot air discharge to the outside;

[0032] Therefore, referring to Figure 1 and Figure 3As shown, it is worth mentioning that the pressure relief cylinder 10 is externally provided with a rotating shielding part for preventing dust from entering the inside of the pressure relief port 11;

[0033] The rotating shielding part comprises a plurality of L-shaped connecting frames 13 which are circumferentially attached to the outer wall of the pressure relief cylinder 10, the vertical section of the connecting frame 13 corresponds to the pressure relief port 11, and the open top of the pressure relief cylinder 10 is horizontally fixed with a mounting frame 14, and the mounting frame 14 is provided with a power assembly;

[0034] The power assembly comprises a driving internal threaded rotating sleeve 16 vertically arranged in the central inner wall of the mounting frame 14 and a connecting sleeve 17 fixed to the top end surface of the driving internal threaded rotating sleeve 16, and the horizontal section of the connecting frame 13 is fixedly connected with the outer wall of the connecting sleeve 17;

[0035] A transmission screw 7 is threadedly penetrated into the inside of the mounting frame 14, and the bottom end of the transmission screw 7 is fixedly connected with the shielding sealing plate 12;

[0036] Through the arrangement of the rotating shielding part, when the shielding sealing plate 12 is pressed and slides on the inside of the pressure relief cylinder 10, the transmission screw 7 can synchronously penetrate the inside of the driving internal threaded rotating sleeve 16 with the shielding sealing plate 12, so that the driving internal threaded rotating sleeve 16 is rotated with the connecting sleeve 17 carried by the threaded structure, and then the connecting frame 13 is deflected to one side, thereby unsealing the pressure relief port 11, so as to facilitate the outward discharge of hot gas;

[0037] When the pressure relief reaches a certain degree, and the pressure difference between the inside and outside of the oven 1 is balanced, the shielding sealing plate 12 is lowered and reset under its own gravity with the transmission screw 7, so that the driving internal threaded rotating sleeve 16 is again reversed under the threaded structure, and the connecting frame 13 is reversely deflected to the position corresponding to the pressure relief port 11, thereby sealing the pressure relief port 11, and effectively preventing dust and impurities in the external air from entering the inside of the pressure relief port 11, thereby blocking the inside of the pressure relief port 11.

[0038] Further, referring to Figure 3 As shown, it is worth mentioning that the mounting frame 14 and the shielding sealing plate 12 are fixedly connected with an extension rod 15;

[0039] Through the arrangement of the extension rod 15, when the shielding sealing plate 12 is pressed and slides on the inside of the pressure relief cylinder 10, the extension rod 15 can synchronously perform a contraction movement with the shielding sealing plate 12, so as to limit the movement track of the shielding sealing plate 12.

[0040] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A hot melt adhesive drying device for vehicles, comprising an oven (1), a feeding barrel (3) rotatably arranged in the oven (1), and a drying machine (8) installed on the outer wall of the oven (1), the oven (1) and one side of the feeding barrel (3) are both open, the open end of the feeding barrel (3) is hinged with a cover (2), the output end of the drying machine (8) is connected with an air pipe (9), and the tail end of the air pipe (9) penetrates into the inside of the oven (1), characterized in that, The safety pressure relief mechanism is used to enhance the safety of the oven (1) in use. The safety pressure relief mechanism comprises a pressure relief cylinder (10) fixed in the inner wall of the top end of the oven (1) and a plurality of pressure relief openings (11) around the pressure relief cylinder (10) on the outer cylinder wall of the oven (1), and the pressure relief cylinder (10) is provided with a sealing part corresponding to the pressure relief opening (11), and the pressure relief cylinder (10) is provided with a rotating shielding part for preventing dust from entering the inside of the pressure relief opening (11).

2. The hot melt adhesive drying device for vehicle according to claim 1, characterized in that, The sealing part is a shielding sealing plate (12) with one end open, and the outer wall of the shielding sealing plate (12) is attached to the inner wall of the pressure relief cylinder (10) through a rubber pad.

3. The hot melt adhesive drying device for vehicle according to claim 2, characterized in that, The rotating shielding part comprises a plurality of L-shaped connecting frames (13) attached to the outer wall of the pressure relief cylinder (10), the vertical section of the connecting frame (13) corresponds to the pressure relief opening (11), and the open top of the pressure relief cylinder (10) is horizontally fixed with a mounting frame (14), and the mounting frame (14) is provided with a power assembly.

4. The hot melt adhesive drying device for vehicle according to claim 3, characterized in that, The power assembly comprises a driving internal threaded rotating sleeve (16) vertically arranged in the central inner wall of the mounting frame (14) and a connecting sleeve (17) fixed to the top end surface of the driving internal threaded rotating sleeve (16), and the horizontal section of the connecting frame (13) is fixedly connected with the outer wall of the connecting sleeve (17).

5. The hot melt adhesive drying device for vehicle according to claim 4, characterized in that, The inside of the mounting frame (14) is threaded through a transmission screw rod (7), and the bottom end of the transmission screw rod (7) is fixedly connected with the shielding sealing plate (12).

6. The hot melt adhesive drying device for vehicle according to claim 3, characterized in that, The mounting frame (14) and the shielding sealing plate (12) are fixedly connected with an extension rod (15).

Images