Coating drying equipment

Abstract

The invention belongs to the technical field of coating and drying, and discloses coating and drying equipment which comprises a drying box and a placing table, a power motor is arranged at the top of the drying box, deformation type blowing and drying parts are symmetrically arranged in the drying box, and communicating parts are arranged at the upper ends and the lower ends of the deformation type blowing and drying parts in a communicating mode. Through the air pump, the distribution part, the pushing assembly and the deformation type blowing and drying part, when an actual workpiece is dried, deformation of the deformation type blowing and drying part is controlled by changing the input amount of pressure air according to the external structure condition of the workpiece, the posture change from is achieved, and the special-shaped outer side face of the workpiece is adapted; for the convex and concave structural surfaces, adaptive hot air blowing is realized by changing the angles of the corresponding air outlet holes, so that the drying effect is greatly improved, uniform drying treatment is ensured, the problem of incomplete drying due to local dead angles is avoided, the final drying efficiency is greatly improved, and the use effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of coating and drying, and in particular relates to coating and drying equipment. Background Art

[0002] Coating drying equipment is an industrial equipment used for drying coatings. It is widely used in coating, spraying, painting and other processes to ensure that the coating is dried and cured within a certain period of time.

[0003] During use, the coating drying equipment in the prior art usually places the workpiece in a drying box, cooperates with the internal drying equipment and hot air blowing, and completes the drying process of the painted part on the outer side of the workpiece during rotation. However, due to the irregular state of the outer side of some workpieces, there are a large number of structural features such as depressions and protrusions. In the current blowing and drying process, the direction of hot air blowing is fixed, which is difficult to adapt to the outer side of the irregular workpiece. There are dead corners in the actual hot air drying process, the overall drying uniformity is low, the actual drying quality is poor, and the efficiency is low. Summary of the invention

[0004] The object of the present invention is to provide a coating drying device to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a coating drying equipment, comprising a drying box and a placing table, a power motor is provided on the top of the drying box, a variable type blowing and drying section is symmetrically provided inside the drying box, upper and lower ends of the variable type blowing and drying section are connected with connecting parts, a connecting piece is fixedly connected between the left and right groups of connecting parts, the upper end of the connecting piece passes through the drying box and is fixedly connected to the output shaft of the power motor, a pushing component is fixedly connected to the side of the variable type blowing and drying section, the other end of the pushing component is fixedly connected to a distribution part, the connecting part is symmetrically fixedly connected to the upper and lower sides of the distribution part, an air pump and an electric push rod are respectively provided on the outside of the distribution part, a switching mechanism is provided inside the distribution part, the electric push rod controls the distribution part to be independently connected with the connecting part and the pushing component through the switching mechanism, an air outlet is provided on the front of the variable type blowing and drying section, and an electric heating tube is fixedly provided inside.

[0006] Preferably, the modified purge and drying section includes a purge frame one, a purge frame two, an adapter slot, an adapter block, a connecting frame and an intermediate shaft, the adapter slot is opened at the top of the purge frame one, the adapter block is fixedly connected to the bottom of the purge frame two, the intermediate shaft moves through the purge frame one and the adapter block, the adapter block is located in the adapter slot, the intermediate shaft is fixedly connected in the connecting frame, the connecting frame is located on the outside of the connection between the purge frame one and the purge frame two, the air outlet is opened on the front of the purge frame one and the purge frame two, and the electric heating tube is fixedly installed inside the purge frame one and the purge frame two.

[0007] Preferably, the connecting portion comprises a connecting frame and an elastic tube, the elastic tube is fixed on the connecting frame, the connecting frame is fixedly connected to the outside of the distribution portion, and both remote ends of the purge frame 1 and the purge frame 2 are fixedly connected to the elastic tube.

[0008] Preferably, the pushing assembly includes a sleeve, a push rod and a spring, the sleeve is fixedly connected to the outer side surface of the distribution part, one end of the push rod is fixedly connected to the connecting frame, and the other end is movably sleeved in the sleeve, one end of the spring is fixedly connected to the inner end of the push rod, and the other end is fixed to the end surface of the distribution part and is located in the sleeve.

[0009] Preferably, the distribution part includes a connecting cover, a No. 1 port and a No. 2 port, wherein the No. 1 port is provided on the outer surface of the connecting cover and is connected to the connecting frame, and the No. 2 port is provided on the end surface of the connecting cover and is connected to the sleeve.

[0010] Preferably, the switching mechanism includes a movable ring, a conducting tube, a bent rod and a sealing plug. The conducting tube is fixedly sleeved inside the connecting cover, and one end is nested in the No. 2 port. The movable ring is movably sleeved inside the connecting cover, and movably sleeved on the outside of the conducting tube. One end of the bent rod is fixed on the movable ring, and the other end is fixed on the sealing plug. The sealing plug faces the conducting tube, and the size of the sealing plug is adapted to the size of the inner cavity of the conducting tube.

[0011] Preferably, the movable end of the electric push rod passes through the connecting cover and is fixedly connected to the movable ring, and the air outlet end of the air pump is connected to the inside of the connecting cover.

[0012] Preferably, the top of the connecting piece is rotatably sleeved in the drying box through a bearing, the placing table is fixed to the bottom of the inner cavity of the drying box, the modified blowing and drying parts are symmetrically distributed on both sides of the placing table, an opening and closing door is provided on the front of the drying box, and the power motor is fixed to the top of the drying box through a support.

[0013] Preferably, the side of the pushing assembly is fixedly connected to an auxiliary control assembly, and the top of the drying box is fixedly provided with a protrusion assembly, the auxiliary control assembly includes a connecting pipe, a connecting cylinder, a movable plug, a second spring, a top rod and a positioning rod, one end of the connecting pipe is fixedly connected to the outside of the pushing assembly and is connected to the inside of the pushing assembly, the connecting cylinder is fixedly connected to the top of the connecting pipe, the movable plug is movably sleeved in the connecting cylinder, the second spring is fixedly connected to the inside of the connecting cylinder, and the upper end is fixedly connected to the movable plug, the top rod is fixedly connected to the top of the movable plug, and the upper end movably passes through the top of the connecting cylinder, and the positioning rod is fixed in the connecting cylinder and is located above the movable plug.

[0014] Preferably, the protrusion assembly includes a mounting ring, an arc-shaped protrusion, a hydraulic push rod and a mounting frame, the arc-shaped protrusion is fixedly connected to the bottom of the mounting ring, the hydraulic push rod is fixed to the top of the drying box, one end of the mounting frame is fixedly connected to the mounting ring, and the other end is fixedly connected to the movable end of the hydraulic push rod, the bottom of the arc-shaped protrusion is movable through the drying box and extends to the interior, the arc-shaped protrusion is located on the rotation path of the top rod, and the two sides of the bottom of the arc-shaped protrusion are symmetrical and inclined.

[0015] The beneficial effects of the present invention are as follows: (1) The present invention utilizes an air pump, a distribution part, a pushing assembly, and a variable-type blowing and drying part. When the actual workpiece is dried, the input amount of the pressurized air is changed according to the external structure of the workpiece to control the deformation of the variable-type blowing and drying part, and the posture is changed from "<" "I" to ">" to adapt to the special-shaped outer side of the workpiece. For the convex and concave structural surfaces, the angle of the corresponding air outlet is changed to achieve adaptive hot air blowing, which greatly improves the drying effect, ensures uniform drying, avoids the problem of incomplete drying in local dead corners, greatly improves the final drying efficiency, and has a good use effect.

[0016] (2) The present invention reuses the distribution part, as well as the movable ring, the conducting tube and the sealing plug in the distribution part, and uses an air pump to realize deformation adjustment of the variable form blowing and drying part. After completing the deformation control, the air outlet direction is quickly switched through the movement of the movable ring to guide the pressurized air into the variable form blowing and drying part, and cooperates with the electric heating tube to complete the hot air treatment and dry the workpiece. The drying equipment has a compact structure, and the action of first adjusting and then blowing is continuous. No additional power equipment is required, and deformation control and hot air blowing and drying can be quickly realized.

[0017] (3) The present invention reuses the pushing component and the variable-type purge and drying section, cooperates with the auxiliary control component connected to the side of the pushing component, and utilizes the raised component on the top of the drying box to control the downward movement of the arc-shaped protrusion, so that the arc-shaped protrusion moves to the moving path of the top rod in the auxiliary control component, and forms intermittent squeezing and pushing during the rotation process. The squeezing and pushing effect is used to compress the air in the connecting cylinder, and the internal air pressure is enhanced when the pushing component is sealed. The air pressure is used to push the variable-type purge and drying section to actively deform, and cooperates with multiple groups of arc-shaped protrusions to dynamically change different angles during the rotation process to adapt to more complex outer surfaces of workpieces, thereby further improving the drying effect of the outer surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a cross-sectional schematic diagram of the present invention; Figure 3It is a schematic diagram of the positions of the protrusion assembly and the auxiliary control assembly of the present invention; Figure 4 It is a schematic diagram of the connection between the purge and drying part and the pushing component of the modified form of the present invention; Figure 5 This is a schematic diagram of the explosion of the purge drying section of the modified form of the present invention; Figure 6 It is a cross-sectional schematic diagram of the purge frame 1 of the present invention; Figure 7 It is a schematic diagram of the connecting portion of the present invention; Figure 8 It is an exploded schematic diagram of the propulsion assembly of the present invention; Fig. 9 is a cross-sectional schematic diagram of the distribution portion of the present invention; Fig.10 is a cross-sectional schematic diagram of the auxiliary control assembly of the present invention; Fig.11 Schematic diagram of the protrusion assembly of the present invention.

[0019] In the figure: 1, drying box; 2, power motor; 3, connecting piece; 4, connecting part; 41, connecting frame; 42, elastic tube; 5, variable type purge drying part; 51, purge frame 1; 52, purge frame 2; 53, adapter slot; 54, adapter block; 55, connecting frame; 56, intermediate shaft; 6, pushing assembly; 61, sleeve; 62, push rod; 63, spring 1; 7, distribution part; 71, connecting cover; 72, No. 1 port; 73, No. 2 port; 8, placing table ; 9. Air outlet; 10. Electric heating tube; 11. Air pump; 12. Electric push rod; 13. Movable ring; 14. Conducting tube; 15. Bending rod; 16. Sealing plug; 17. Auxiliary control component; 171. Connecting tube; 172. Connecting tube; 173. Movable plug; 174. Spring 2; 175. Top rod; 176. Positioning rod; 18. Protrusion component; 181. Mounting ring; 182. Arc-shaped protrusion; 183. Hydraulic push rod; 184. Mounting frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 11As shown, an embodiment of the present invention provides a coating drying equipment, including a drying box 1 and a placing table 8, a power motor 2 is provided on the top of the drying box 1, and a variable-type purge and drying section 5 is symmetrically provided inside the drying box 1, and the upper and lower ends of the variable-type purge and drying section 5 are connected with a connecting section 4, and a connecting piece 3 is fixedly connected between the left and right groups of connecting sections 4, and the upper end of the connecting piece 3 passes through the drying box 1 and is fixedly connected to the output shaft of the power motor 2, and a pushing component 6 is fixedly connected to the side of the variable-type purge and drying section 5, and the other end of the pushing component 6 is fixedly connected to a distribution section 7, and the communication section 4 is symmetrically fixedly connected to the upper and lower sides of the distribution section 7, and an air pump 11 and an electric push rod 12 are respectively provided on the outside of the distribution section 7, and a switching mechanism is provided inside the distribution section 7, and the electric push rod 12 controls the distribution section 7 to be independently connected with the connecting section 4 and the pushing component 6 through the switching mechanism, and an air outlet 9 is provided on the front of the variable-type purge and drying section 5, and an electric heating tube 10 is fixedly provided inside.

[0022] Embodiment 1: When in use, the painted workpiece to be dried is placed on the placing table 8 of the drying box 1, and the shape of the variable-type purge drying section 5 is adjusted according to the external shape of the workpiece. When the structure of the outer side of the workpiece is consistent and does not change much, the air pump 11 is directly started, and the pressurized air is input into the distribution part 7, and is input into the second port 73 along the guide pipe 14, and is input into the pushing assembly 6, pushing the push rod 62 to move, stretching the spring 1 63, the push rod 62 to move, and driving the connecting frame 55 in the variable-type purge drying section 5 to move, so that the purge frame 2 52 and the purge frame 1 51 connected to the upper and lower rotations rotate and keep synchronously vertical, driving the spring 1 63 to move. The elastic tube 42 is deformed, and the air outlet 9 in the purge frame 2 52 and the purge frame 1 51 is vertically oriented to the outer side of the workpiece. The electric push rod 12 is started, and the movable ring 13 is driven to move along the guide tube 14, driving the sealing plug 16 to seal the guide tube 14, and the No. 1 port 72 is opened, and the air pump 11 is kept started, and the electric heating tube 10 is started at the same time. The air pump 11 inputs the pressurized air into the connecting cover 71, and inputs it into the inside of the purge frame 2 52 and the purge frame 1 51 through the No. 1 port 72, the connecting frame 41, and the elastic tube 42, and at the same time blows it out along the air outlet 9 and toward the outer side of the workpiece, and the power motor 2 is started to drive the connecting piece 3 to rotate. And drive the connecting parts 4 on both sides to rotate, so that the two sets of modified blowing and drying parts 5 rotate around the outer side of the workpiece to complete the hot air surrounding blowing and drying; when the outer side of the workpiece has a large number of protrusions, first keep the sealing plug 16 in the guide tube 14 moved out, keep the air pump 11 stopped, push the pressure air in the assembly 6 to automatically evacuate, and the spring 1 63 drives the push rod 62 to maintain the initial state, so that the purge frame 2 52 and the purge frame 1 51 in the modified blowing and drying part 5 maintain the "<" shape, then seal the guide tube 14, start the air pump 11 and the power motor 2, and as the "<" type arrangement of the purge frame 2 52 and the purge frame 1 51 blow around the workpiece Sweep, blow the heated hot air to each surface of the outside of the special-shaped workpiece to complete comprehensive hot air blowing and drying; when the outer side of the workpiece has a large number of concave surfaces, start the air pump 11 and cooperate with the guide tube 14 to continuously ventilate the pushing component 6, and the pressurized air causes the push rod 62 to drive the deformed blowing and drying part 5 to deform, so that the purge frame 2 52 and the purge frame 1 51 maintain a “>” shape and face the workpiece, then seal the guide tube 14, and introduce pressurized air into the connecting part 4, start the power motor 2, and the purge frame 2 52 and the purge frame 1 51 arranged in a “>” shape rotate around the outside of the special-shaped workpiece to fully blow and dry the outer concave surfaces.

[0023] Firstly, by utilizing the air pump 11, the distribution part 7, the pushing assembly 6 and the variable form blowing and drying part 5, when the actual workpiece is being dried, according to the external structure of the workpiece, by changing the input amount of the pressurized air, the deformation of the variable form blowing and drying part 5 is controlled, and the posture is changed from "<" "I" to ">", so as to adapt to the special-shaped outer side surface of the workpiece, and for the raised and recessed structural surfaces, by changing the angle of the corresponding air outlet 9, adaptive hot air blowing is achieved, which greatly improves the drying effect, ensures uniform drying, avoids the problem of incomplete drying in local dead corners, greatly improves the final drying efficiency, and has a good use effect.

[0024] In addition, by reusing the distribution part 7, as well as the movable ring 13, the conducting tube 14 and the sealing plug 16 in the distribution part 7, the air pump 11 is used to realize the deformation adjustment of the variable form blowing and drying part 5. After completing the deformation control, the air outlet direction is quickly switched through the movement of the movable ring 13, and the pressurized air is guided to enter the variable form blowing and drying part 5. The electric heating tube 10 is cooperated to complete the hot air treatment and dry the workpiece. The drying equipment has a compact structure, and the blowing action is continuous after the adjustment. There is no need to provide additional power equipment, and deformation control and hot air blowing and drying can be quickly realized.

[0025] Embodiment 2: When the outer side of the special-shaped workpiece is more complicated, the sealing plug 16 is kept to seal the guide tube 14, the movable ring 13 opens the No. 1 port 72, the air pump 11 is started and the pressurized air is input into the connecting part 4, and guided to the variable form blowing and drying part 5, and the protrusion assembly 18 is started at the same time. The hydraulic push rod 183 in the protrusion assembly 18 drives the mounting ring 181 and the arc-shaped protrusion 182 to move downward and stop. As the power motor 2 drives the variable form blowing and drying part 5 to rotate, the auxiliary control assembly 17 on one side of the pushing assembly 6 follows the rotation, and the top rod 175 in the auxiliary control assembly 17 intermittently squeezes relative to the arc-shaped protrusion 182 during the rotation process, and compresses the air inside the connecting tube 172 during the squeezing. While compressing the spring 2 174, the internal air pressure of the connected pushing assembly 6 increases, and the internal air pressure increases and acts on the push rod 62, and pushes the variable form blowing and drying part 5 to deform, and as the rotation process, the variable form blowing and drying part 5 intermittently deforms, and the outer side of the special-shaped workpiece is subjected to hot air blowing and drying at different angles.

[0026] First, by reusing the pushing component 6 and the modified purge and drying section 5, in conjunction with the auxiliary control component 17 connected to the side of the pushing component 6, and utilizing the raised component 18 on the top of the drying box 1, by controlling the downward movement of the arc-shaped protrusion 182, the arc-shaped protrusion 182 is moved to the moving path of the top rod 175 in the auxiliary control component 17, and intermittent squeezing and pushing are formed during the rotation process. The air in the connecting cylinder 172 is compressed by the squeezing and pushing action. When the pushing component 6 is in a sealed state, the internal air pressure is enhanced, and the air pressure is used to push the modified purge and drying section 5 to actively deform. In conjunction with multiple groups of arc-shaped protrusions 182, different angles are dynamically changed during the rotation process to adapt to more complex outer sides of workpieces, thereby further improving the drying effect of the outer sides.

[0027] Among them, the modified purging and drying section 5 includes a purging frame 1 51, a purging frame 2 52, an adapter groove 53, an adapter block 54, a connecting frame 55 and an intermediate shaft 56. The adapter groove 53 is opened at the top of the purging frame 1 51, the adapter block 54 is fixedly connected to the bottom of the purging frame 2 52, the intermediate shaft 56 moves through the purging frame 1 51 and the adapter block 54, the adapter block 54 is located in the adapter groove 53, the intermediate shaft 56 is fixedly connected in the connecting frame 55, the connecting frame 55 is located on the outside of the connection between the purging frame 1 51 and the purging frame 2 52, the air outlet 9 is opened on the front of the purging frame 1 51 and the purging frame 2 52, and the electric heating tube 10 is fixedly installed inside the purging frame 1 51 and the purging frame 2 52.

[0028] By utilizing the variable form of blowing and drying section 5 to rotate and deform the blowing frame 1 51 and the blowing frame 2 52, the direction of the air outlet 9 is changed to adapt to the outer side surfaces of different workpieces, complete drying and blowing, and avoid dead corners. The electric heating tube 10 is energized and heated to heat the circulating air volume and form hot air for blowing out.

[0029] Among them, the connecting part 4 includes a connecting frame 41 and an elastic tube 42, the elastic tube 42 is fixed on the connecting frame 41, the connecting frame 41 is fixedly connected to the outside of the distribution part 7, and the two remote ends of the purge frame 1 51 and the purge frame 2 52 are fixedly connected to the elastic tube 42.

[0030] The connecting portion 4 realizes gas conduction, supports and connects the variable-type purge drying portion 5, and utilizes the elastic tube 42 to adapt to the swing and twist of the purge frame 1 51 and the purge frame 2 52 to maintain stable gas conduction.

[0031] Among them, the pushing assembly 6 includes a sleeve 61, a push rod 62 and a spring 63. The sleeve 61 is fixedly connected to the outer surface of the distribution part 7, one end of the push rod 62 is fixedly connected to the connecting frame 55, and the other end is movably sleeved in the sleeve 61, one end of the spring 63 is fixedly connected to the inner end of the push rod 62, and the other end is fixed to the end surface of the distribution part 7 and is located in the sleeve 61.

[0032] The pushing assembly 6 realizes the pushing of the push rod 62 through the pressure air inputted from the inside, thereby controlling the swinging and twisting of the purge frame 1 51 and the purge frame 2 52 in the variable purge and drying section 5 .

[0033] Among them, the distribution part 7 includes a connecting cover 71, a No. 1 port 72 and a No. 2 port 73. The No. 1 port 72 is opened on the outer surface of the connecting cover 71 and is connected to the connecting frame 41. The No. 2 port 73 is opened on the end surface of the connecting cover 71 and is connected to the sleeve 61. The switching mechanism includes a movable ring 13, a conducting tube 14, a bent rod 15 and a sealing plug 16. The conducting tube 14 is fixedly sleeved inside the connecting cover 71, and one end is nested in the No. 2 port 73. The movable ring 13 is movably sleeved inside the connecting cover 71 and movably sleeved on the outside of the conducting tube 14. One end of the bent rod 15 is fixed on the movable ring 13, and the other end is fixed on the sealing plug 16. The sealing plug 16 faces the conducting tube 14. The size of the sealing plug 16 is adapted to the inner cavity size of the conducting tube 14. The movable end of the electric push rod 12 passes through the connecting cover 71 and is fixedly connected to the movable ring 13. The air outlet end of the air pump 11 is connected to the inside of the connecting cover 71.

[0034] The distribution part 7 connects the output air of the air pump 11, and cooperates with the switching mechanism to realize the output of the internal air in different directions. Before drying, the air is introduced into the pushing component 6 to realize the swinging and twisting of the purge frame 1 51 and the purge frame 2 52. After adjustment, the air is introduced into the connecting part 4, and cooperates with the variable purge drying part 5 to realize hot air purge.

[0035] Among them, the top of the connecting part 3 is rotatably sleeved in the drying box 1 through a bearing, the placement table 8 is fixed at the bottom of the inner cavity of the drying box 1, the variable purge and drying part 5 is symmetrically distributed on both sides of the placement table 8, the front of the drying box 1 is provided with an opening and closing door, and the power motor 2 is fixed to the top of the drying box 1 through a support.

[0036] The connecting piece 3 realizes the synchronous rotation of the connecting part 4 symmetrical on both sides and the variable blowing and drying part 5 .

[0037] Among them, the side of the pushing component 6 is fixedly connected with an auxiliary control component 17, and the top of the drying box 1 is fixedly provided with a protrusion component 18. The auxiliary control component 17 includes a connecting pipe 171, a connecting tube 172, a movable plug 173, a spring 174, a top rod 175 and a positioning rod 176. One end of the connecting pipe 171 is fixedly connected to the outside of the pushing component 6 and is connected to the inside of the pushing component 6. The connecting tube 172 is fixedly connected to the top of the connecting pipe 171. The movable plug 173 is movably sleeved in the connecting tube 172. The spring 174 is fixedly connected to the inside of the connecting tube 172, and the upper end is fixedly connected to the movable plug 173. The top rod 175 is fixedly connected to the top of the movable plug 173, and the upper end It moves through the top of the connecting cylinder 172, the positioning rod 176 is fixed in the connecting cylinder 172, and is located above the movable plug 173. The protrusion assembly 18 includes a mounting ring 181, an arc-shaped protrusion 182, a hydraulic push rod 183 and a mounting frame 184. The arc-shaped protrusion 182 is fixedly connected to the bottom of the mounting ring 181, the hydraulic push rod 183 is fixed to the top of the drying box 1, one end of the mounting frame 184 is fixedly connected to the mounting ring 181, and the other end is fixedly connected to the movable end of the hydraulic push rod 183. The bottom of the arc-shaped protrusion 182 moves through the drying box 1 and extends to the inside. The arc-shaped protrusion 182 is located on the rotation path of the top rod 175, and the two sides of the bottom of the arc-shaped protrusion 182 are symmetrical and inclined.

[0038] The auxiliary control component 17 cooperates with the protrusion component 18. When the pushing component 6 is sealed and rotated for blowing and drying, the air pressure in the pushing component 6 is intermittently enhanced through the intermittent squeezing effect, thereby controlling the gradual deformation of the variable-shaped blowing and drying part 5. During the rotating blowing, the dynamic change has a more sufficient angle, further improving the effect of blowing and drying the special-shaped surface.

[0039] The working principle and use process of the present invention are as follows: when in use, the painted workpiece to be dried is placed on the placing table 8 of the drying box 1, and the shape of the variable-type purge drying section 5 is adjusted according to the external shape of the workpiece. When the structure of the outer side surface of the workpiece is consistent and does not change much, the air pump 11 is directly started, and the pressurized air is input into the distribution section 7, and is input into the second port 73 along the guide pipe 14, and is input into the pushing assembly 6, pushing the push rod 62 to move, stretching the spring 1 63, and the push rod 62 to move, and driving the connecting frame 55 in the variable-type purge drying section 5 to move, so that the purge frame 2 52 and the purge frame 1 51 connected to the upper and lower rotations rotate and keep the same The second step is vertical, which drives the elastic tube 42 to deform. The air outlet 9 in the purge frame 2 52 and the purge frame 1 51 is vertically oriented to the outer side of the workpiece. The electric push rod 12 is started, which drives the movable ring 13 to move along the guide tube 14, drives the sealing plug 16 to seal the guide tube 14, and the No. 1 port 72 is opened. The air pump 11 is kept started, and the electric heating tube 10 is started at the same time. The air pump 11 inputs the pressurized air into the connecting cover 71, and inputs it into the inside of the purge frame 2 52 and the purge frame 1 51 through the No. 1 port 72, the connecting frame 41, and the elastic tube 42, and at the same time blows it out along the air outlet 9 and toward the outer side of the workpiece. The power motor 2 is started, which drives the connecting cover 71 to move. The component 3 rotates and drives the connecting parts 4 on both sides to rotate, so that the two sets of modified blowing and drying parts 5 rotate around the outer side of the workpiece to complete the hot air surrounding blowing and drying; when the outer side of the workpiece has a large number of protrusions, first keep the sealing plug 16 in the guide tube 14 moved out, keep the air pump 11 stopped, push the pressure air in the assembly 6 to automatically evacuate, and the spring 1 63 drives the push rod 62 to maintain the initial state, so that the purge frame 2 52 and the purge frame 1 51 in the modified blowing and drying part 5 maintain the "<" shape, then seal the guide tube 14, start the air pump 11 and the power motor 2, and as the "<" type arrangement of the purge frame 2 52 and the purge frame 1 51 rotate around the workpiece, the purge frame 2 52 and the purge frame 1 51 rotate around the workpiece. The workpiece is purged, and the heated hot air is blown to each surface of the outer side of the special-shaped workpiece to complete comprehensive hot air purging and drying; when the outer side of the workpiece has a large number of concave surfaces, the air pump 11 is started and the guide pipe 14 is cooperated to continuously ventilate the push component 6, and the push rod 62 drives the deformed purging and drying part 5 to deform under the pressure air, so that the purge frame 2 52 and the purge frame 1 51 maintain the ">" shape and face the workpiece, and then the guide pipe 14 is sealed, and the pressure air is introduced into the connecting part 4, and the power motor 2 is started, and the purge frame 2 52 and the purge frame 1 51 arranged in the ">" shape rotate around the outer side of the special-shaped workpiece to fully purge and dry the outer concave surface;When the outer side of the special-shaped workpiece is more complicated, the sealing plug 16 is kept to seal the guide tube 14, the movable ring 13 opens the No. 1 port 72, the air pump 11 is started and the pressurized air is input into the connecting part 4, and guided to the variable-type blowing and drying part 5, and the protruding assembly 18 is started at the same time. The hydraulic push rod 183 in the protruding assembly 18 drives the mounting ring 181 and the arc-shaped protrusion 182 to move downward and stop. As the power motor 2 drives the variable-type blowing and drying part 5 to rotate, the auxiliary control assembly 17 on one side of the push assembly 6 rotates with it, and the top rod 175 in the auxiliary control assembly 17 intermittently squeezes the arc-shaped protrusion 182 during the rotation process, and compresses the air inside the connecting cylinder 172 during the squeezing. While compressing the spring 2 174, the internal air pressure of the connected push assembly 6 increases, and the internal air pressure increases and acts on the push rod 62, and pushes the variable-type blowing and drying part 5 to deform. In addition, during the rotation process, the variable-type blowing and drying part 5 is intermittently deformed, and the outer side of the special-shaped workpiece is subjected to hot air blowing and drying at different angles. ;

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coating drying device, comprising a drying box (1) and a placing table (8), characterized in that: The top of the drying box (1) is provided with a power motor (2), and the interior of the drying box (1) is symmetrically provided with a modified blowing and drying section (5), and the upper and lower ends of the modified blowing and drying section (5) are both connected with a connecting section (4), and a connecting piece (3) is fixedly connected between the left and right groups of the connecting sections (4), and the upper end of the connecting piece (3) passes through the drying box (1) and is fixedly connected to the output shaft of the power motor (2), and a pushing component (6) is fixedly connected to the side of the modified blowing and drying section (5), and the pushing component (6) The other end of the distribution part (7) is fixedly connected to the distribution part (7), the communication part (4) is symmetrically fixedly connected to the upper and lower sides of the distribution part (7), the outside of the distribution part (7) is respectively provided with an air pump (11) and an electric push rod (12), the inside of the distribution part (7) is provided with a switching mechanism, the electric push rod (12) controls the distribution part (7) to be independently connected with the communication part (4) and the pushing component (6) through the switching mechanism, and the front side of the modified blowing and drying part (5) is provided with an air outlet (9), and an electric heating pipe (10) is fixedly provided inside.

2. A coating drying equipment according to claim 1, characterized in that: The modified purge drying section (5) comprises a purge frame 1 (51), a purge frame 2 (52), an adaptor groove (53), an adaptor block (54), a connecting frame (55) and an intermediate shaft (56); the adaptor groove (53) is arranged at the top of the purge frame 1 (51); the adaptor block (54) is fixedly connected to the bottom of the purge frame 2 (52); the intermediate shaft (56) movably passes through the purge frame 1 (51) and the adaptor block (54); the adaptor block (54) is located in the adaptor groove (53); the intermediate shaft (56) is fixedly connected to the connecting frame (55); the connecting frame (55) is located at the outer side of the connection between the purge frame 1 (51) and the purge frame 2 (52); the air outlet (9) is arranged at the front sides of the purge frame 1 (51) and the purge frame 2 (52); and the electric heating tube (10) is fixedly installed inside the purge frame 1 (51) and the purge frame 2 (52).

3. A coating drying equipment according to claim 2, characterized in that: The communication portion (4) comprises a communication frame (41) and an elastic tube (42), wherein the elastic tube (42) is fixed on the communication frame (41), the communication frame (41) is fixedly connected to the outside of the distribution portion (7), and both remote ends of the purge frame 1 (51) and the purge frame 2 (52) are fixedly connected to the elastic tube (42).

4. A coating drying equipment according to claim 3, characterized in that: The pushing assembly (6) comprises a sleeve (61), a push rod (62) and a spring (63); the sleeve (61) is fixedly connected to the outer surface of the distribution portion (7); one end of the push rod (62) is fixedly connected to the connecting frame (55), and the other end is movably sleeved in the sleeve (61); one end of the spring (63) is fixedly connected to the inner end of the push rod (62), and the other end is fixed to the end surface of the distribution portion (7) and is located in the sleeve (61).

5. A coating drying equipment according to claim 4, characterized in that: The distribution portion (7) comprises a connecting cover (71), a first port (72) and a second port (73); the first port (72) is provided on the outer surface of the connecting cover (71) and is in communication with the connecting frame (41); the second port (73) is provided on the end surface of the connecting cover (71) and is in communication with the sleeve (61).

6. A coating drying equipment according to claim 5, characterized in that: The switching mechanism comprises a movable ring (13), a conducting tube (14), a bent rod (15) and a sealing plug (16); the conducting tube (14) is fixedly sleeved inside the connecting cover (71), and one end is nested in the No. 2 port (73); the movable ring (13) is movably sleeved inside the connecting cover (71), and movably sleeved on the outside of the conducting tube (14); one end of the bent rod (15) is fixed on the movable ring (13), and the other end is fixed on the sealing plug (16); the sealing plug (16) faces the conducting tube (14), and the size of the sealing plug (16) is adapted to the size of the inner cavity of the conducting tube (14).

7. A coating drying equipment according to claim 6, characterized in that: The movable end of the electric push rod (12) passes through the connecting cover (71) and is fixedly connected to the movable ring (13), and the air outlet end of the air pump (11) is connected to the interior of the connecting cover (71).

8. The coating drying equipment according to claim 1, characterized in that: The top of the connecting member (3) is rotatably sleeved in the drying box (1) via a bearing, the placement table (8) is fixed to the bottom of the inner cavity of the drying box (1), the modified purge drying section (5) is symmetrically distributed on both sides of the placement table (8), the front of the drying box (1) is provided with an opening and closing door, and the power motor (2) is fixed to the top of the drying box (1) via a support.

9. The coating drying equipment according to claim 1, characterized in that: The side of the pushing component (6) is fixedly connected to an auxiliary control component (17), and the top of the drying box (1) is fixedly provided with a protrusion component (18). The auxiliary control component (17) comprises a connecting pipe (171), a connecting tube (172), a movable plug (173), a second spring (174), a top rod (175) and a positioning rod (176). One end of the connecting pipe (171) is fixedly connected to the outside of the pushing component (6) and is connected to the inside of the pushing component (6). The connecting tube (172) is fixedly connected to the outside of the pushing component (6) and is connected to the inside of the pushing component (6). 2) is fixedly connected to the top of the connecting tube (171), the movable plug (173) is movably sleeved in the connecting tube (172), the second spring (174) is fixedly connected to the inside of the connecting tube (172), and the upper end is fixedly connected to the movable plug (173), the top rod (175) is fixedly connected to the top of the movable plug (173), and the upper end movably passes through the top of the connecting tube (172), and the positioning rod (176) is fixed in the connecting tube (172) and is located above the movable plug (173).

10. The coating drying equipment according to claim 9, characterized in that: The protrusion assembly (18) comprises a mounting ring (181), an arc-shaped protrusion (182), a hydraulic push rod (183) and a mounting frame (184); the arc-shaped protrusion (182) is fixedly connected to the bottom of the mounting ring (181); the hydraulic push rod (183) is fixed to the top of the drying box (1); one end of the mounting frame (184) is fixedly connected to the mounting ring (181), and the other end is fixedly connected to the movable end of the hydraulic push rod (183); the bottom of the arc-shaped protrusion (182) is movable through the drying box (1) and extends to the inside; the arc-shaped protrusion (182) is located on the rotation path of the top rod (175); and the two sides of the bottom of the arc-shaped protrusion (182) are symmetrical and are inclined surfaces.

Images