A process for the preparation of putty for vehicles

Abstract

This invention relates to the field of putty preparation technology. The invention discloses a process for preparing putty for vehicles, comprising: S1: combining 200 parts of linseed oil resin and 100 parts of bicyclic resin to form a resin main material. The resin main material is conveyed through a resin main material conveying pipe to the surface of a primary conveying mechanism and dispersed in all directions. After passing through the gap between the edge of the primary conveying mechanism and the inner wall of the mixing pipe, it is affected by gravity and slides down the mixing pipe, forming a wall flow. S2: Powdered auxiliary materials are dispersed into the wall flow by the centrifugal force of a secondary conveying mechanism, forming a primary mixed wall flow. This process utilizes the fluidity and viscosity of a large volume of resin. When the large volume of resin is added, gravity forms a thin wall flow. The coordinated rotation of the powdered auxiliary materials and the secondary conveying mechanism generates centrifugal force, dispersing the powdered auxiliary materials into the thinned wall flow. Combining the rotational characteristics of the main shaft with the small volume characteristics of the additives and styrene, a rotating spray method is used to make the process continuous.

Description

Technical Field

[0001] This invention relates to the field of putty preparation technology, specifically a process for preparing putty for vehicles. Background Technology

[0002] In the preparation of putty for vehicles, resin and powdered additives constitute a large proportion. Due to the viscosity of the resin and the small proportion of other additives, the volume of the mixture is too large during mixing. To achieve uniform mixing of the smaller proportions of these additives, a long mixing cycle is required. Summary of the Invention

[0003] The purpose of this invention is to provide a process for preparing body filler for vehicles, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A process for preparing body filler for vehicles, comprising: S1: 200 parts of linseed oil resin and 100 parts of bicyclic resin are combined to form the main resin material. The main resin material is transported to the surface of the primary conveying mechanism through the main resin material conveying pipe and dispersed in all directions. After passing through the gap between the edge of the primary conveying mechanism and the inner wall of the mixing pipe, it is affected by gravity and slides down the mixing pipe to form wall flow. S2: Combine 300 parts of 400-mesh talc powder, 200 parts of 600-mesh talc powder, 200 parts of 1600-mesh talc powder, 20 parts of titanium dioxide, and 10 parts of organic bentonite into a powder auxiliary material. The powder auxiliary material is transported through the resin main material conveying pipe to the upper end face of the rotating secondary conveying mechanism via a powder auxiliary material conveying connection pipe. The secondary conveying mechanism distributes the powder auxiliary material into the wall flow in all directions by centrifugal force, forming a primary mixed wall flow. S3: 4 parts cobalt isooctanoate, 0.3 parts dimethylbenzene, 5 parts wetting dispersant, and 3 parts anti-settling dispersant are combined to form auxiliary materials. The auxiliary materials are transported to the three-stage conveying mechanism through a fixed auxiliary material conveying pipeline. The three-stage conveying mechanism is rotated by the force of the mixing main shaft. The three-stage conveying mechanism disperses the auxiliary materials into the wall flow to form a two-stage mixed wall flow. S4: 40 parts of styrene are conveyed to the fourth-stage conveying mechanism through a styrene conveying rotary pipe. The fourth-stage conveying mechanism is rotated by the force of the mixing main shaft, dispersing the styrene into the wall flow to form a third-stage mixing wall flow, which is then mixed by the subsequent mixing reflux mechanism. S5: The three-stage mixing wall flow falls to the bottom of the mixing tube, the mixing main shaft reverses, the opening end of the bottom mixing fan blade is opposite to the rotation direction, the opening end of the top mixing fan blade is opposite to the rotation direction, the liquid at the top mixing fan blade is affected by the rotation force, enters through the opening end of the top mixing fan blade, passes through the inclined upper vortex chamber, and moves from top to bottom through the opening end of the bottom mixing fan blade. S6: The mixing main shaft rotates forward, the opening end of the bottom mixing fan blade is opposite to the direction of rotation, and the opening end of the top mixing fan blade is opposite to the direction of rotation. The liquid at the bottom mixing fan blade is affected by the rotational force, enters through the opening end of the bottom mixing fan blade, passes through the inclined upper vortex chamber, and is discharged through the opening end of the top mixing fan blade. The liquid moves from bottom to top.

[0005] As a further embodiment of the present invention: the styrene conveying rotary pipe in S4 passes through the bottom end of the mixing spindle, the styrene conveying rotary pipe is rotatably connected to the four-stage conveying mechanism disposed inside the mixing spindle, and a control drive chamber is disposed at the bottom of the mixing pipe, the control drive chamber driving the mixing spindle to rotate.

[0006] As a further embodiment of the present invention: the resin main material conveying pipe is fixedly connected to the top of the mixing pipe, and the bottom end of the resin main material conveying pipe is spaced from the top end of the primary conveying mechanism.

[0007] As a further embodiment of the present invention: the powder auxiliary material conveying connecting pipe passes through the resin main material conveying pipe, and the powder auxiliary material conveying connecting pipe is fixedly connected to the resin main material conveying pipe; the powder auxiliary material conveying connecting pipe passes through the primary conveying mechanism, and the powder auxiliary material conveying connecting pipe is fixedly connected to the primary conveying mechanism.

[0008] As a further embodiment of the present invention: the secondary conveying mechanism is fixedly connected to the top of the mixing main shaft, and the bottom end of the powder auxiliary material conveying connecting pipe is spaced apart from the top surface of the secondary conveying mechanism.

[0009] As a further embodiment of the present invention: the fixed auxiliary agent conveying pipe passes through the powder auxiliary material conveying connecting pipe, the fixed auxiliary agent conveying pipe is fixedly connected to the powder auxiliary material conveying connecting pipe, the fixed auxiliary agent conveying pipe extends into the top hole of the secondary conveying mechanism, the fixed auxiliary agent conveying pipe is sealed to the secondary conveying mechanism through a dynamic sealing structure, and the bottom end of the fixed auxiliary agent conveying pipe is sealed to the tertiary conveying mechanism through a dynamic sealing structure.

[0010] Compared with the prior art, the beneficial effects of the present invention are: This process utilizes the fluidity and viscosity of large-volume resin. When the large-volume resin is added, gravity forms a thin wall flow. Based on this thin flow, the rotational characteristics of the mixing spindle, combined with the coordinated rotation of the powder additives and the secondary conveying mechanism, generate centrifugal force, dispersing the powder additives into the thinned wall flow. Combining the rotational characteristics of the spindle with the small volume characteristics of the additives and styrene, a rotary spraying method is used to make the process continuous. This ensures that the same volume of additives and styrene is sprayed after the resin flow is completely finished, thus solving the problem of long mixing cycles caused by large volume differences in the preparation of putty.

[0011] Based on the above process, the mixing and reflux mechanism utilizes the relative forces caused by forward and reverse rotation to achieve auxiliary mixing from bottom to top and from top to bottom, further increasing the mixing efficiency.

[0012] Furthermore, the application equipment for this process is simpler and more stable, ensuring the application effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional cross-sectional view of an actuator for a process of preparing body filler for vehicles.

[0015] Figure 2 This is a schematic diagram of the operating principle of an actuator for applying body filler to vehicles.

[0016] Figure 3 This is a three-dimensional cross-sectional schematic diagram from another perspective of an actuator for a process of preparing body filler for vehicles.

[0017] Figure 4 This is a cross-sectional schematic diagram of an actuator for a process of preparing body filler for vehicles.

[0018] Figure 5 This is a process flow diagram for preparing body filler for vehicles.

[0019] In the diagram: 1. Mixing pipe; 2. Primary conveying mechanism; 21. Resin main material conveying pipe; 3. Secondary conveying mechanism; 31. Powder auxiliary material conveying connecting pipe; 4. Tertiary conveying mechanism; 41. Additive conveying fixed pipe; 5. Quaternary conveying mechanism; 51. Styrene conveying rotary pipe; 6. Mixing main shaft; 7. Mixing reflux mechanism; 71. Bottom mixing fan blade; 72. Top mixing fan blade; 73. Inclined upward swirl chamber; 8. Control drive chamber. Detailed Implementation

[0020] Please see Figures 1-5 : Example 1: In this embodiment: S1: 200 parts of linseed oil resin and 100 parts of bicyclic resin are combined to form the resin main material. The resin main material is transported to the surface of the primary conveying mechanism 2 through the resin main material conveying pipe 21 and dispersed in all directions. After passing through the gap between the edge of the primary conveying mechanism 2 and the inner wall of the mixing pipe 1, it is affected by gravity and slides down the mixing pipe 1 to form wall flow.

[0021] In this embodiment, 200 parts of linseed oil resin and 100 parts of bicyclic resin are combined as the main resin material. These two materials can be pre-mixed or simultaneously delivered using a spiral mixing tube to the main resin material delivery pipe 21. The main resin material delivery pipe 21 is located above the mixing pipe 1, with a gap between its bottom end and the top surface of the primary conveying mechanism 2. The main resin material falls through the bottom of the main resin material delivery pipe 21 to the primary conveying mechanism 2. Influenced by the primary conveying mechanism 2, the main resin material flows to the gap between the primary conveying mechanism 2 and the side wall of the mixing pipe 1. Due to the gap, the resin flows downwards along the inner wall of the mixing pipe 1. The gap restricts the thickness of the main resin material flowing along the inner wall of the mixing pipe 1, preventing it from becoming too thick. This method allows a large volume of main resin material to flow along the inner wall of the mixing pipe 1, forming a thinner-walled flow, which can then be used for subsequent mixing.

[0022] In this embodiment, S2: 300 parts of 400-mesh talc powder, 200 parts of 600-mesh talc powder, 200 parts of 1600-mesh talc powder, 20 parts of titanium dioxide, and 10 parts of organic bentonite are combined into powder auxiliary materials. The powder auxiliary materials are transported through the powder auxiliary material conveying connection pipe 31 through the resin main material conveying pipe 21 to the upper end face of the rotating secondary conveying mechanism 3. The secondary conveying mechanism 3 is rotated and centrifugally dispersed into the wall flow to form a primary mixed wall flow.

[0023] In this embodiment, the powdered auxiliary material is also a large-volume additive, but its flowability is poor. Therefore, the powdered auxiliary material conveying connection pipe 31 conveys the material to the surface of the secondary conveying mechanism 3. Affected by the rotation of the mixing shaft 6, the secondary conveying mechanism 3 disperses the powdered auxiliary material in all directions under centrifugal force. The dispersed powdered auxiliary material directly enters the resin wall flow, where it is buffered, preventing it from impacting the inner wall of the mixing pipe 1. Simultaneously, the resin flows rapidly downwards, continuously drawing the powdered auxiliary material into the resin wall flow. This ensures that both large-volume components enter the wall flow upon addition. After complete resin addition, the powdered auxiliary material and the main resin material are in a nearly uniformly mixed state. The resin wall flow passing below the secondary conveying mechanism 3 at this point is the primary mixing wall flow.

[0024] In this embodiment, S3: 4 parts cobalt isooctanoate, 0.3 parts dimethylbenzene, 5 parts wetting dispersant, and 3 parts anti-settling dispersant are combined into auxiliary materials. The auxiliary materials are transported to the three-stage conveying mechanism 4 through the auxiliary material conveying fixed pipeline 41. The three-stage conveying mechanism 4 is rotated by the force of the mixing main shaft 6. The three-stage conveying mechanism 4 disperses the auxiliary materials into the wall flow to form a two-stage mixed wall flow.

[0025] In this embodiment, cobalt isooctanoate and dimethylbenzene are used as accelerators. Since the proportion of accelerators and dispersants is very small, they are separated into auxiliary materials and added uniformly. Due to their small proportion, the secondary mixing wall flow is quickly sprayed using a ring-shaped spray method. This causes the auxiliary materials to be unable to mix with the subsequent wall flow. Therefore, the rotation of the mixing spindle 6 is used to convey the auxiliary materials downward through the fixed auxiliary material conveying pipe 41 using a rotary dynamic seal connection. This connects the fixed auxiliary material conveying pipe 41 to the three-stage conveying mechanism 4 inside the mixing spindle 6. The auxiliary materials are then sprayed annularly at the end of the three-stage conveying mechanism 4 onto the secondary mixing wall flow, avoiding the problem of incomplete mixing caused by the rapid loss of auxiliary materials. Furthermore, the kinetic energy of the spindle is used to achieve uniform feeding.

[0026] In this embodiment, S4: 40 parts of styrene are conveyed to the fourth-stage conveying mechanism 5 through the styrene conveying rotary pipe 51. The fourth-stage conveying mechanism 5 is rotated by the force of the mixing main shaft 6, dispersing the styrene into the wall flow to form a third-stage mixing wall flow, which is then mixed by the subsequent mixing return mechanism 7.

[0027] In this embodiment, the styrene conveying rotary pipe 51 in S4 passes through the bottom end of the mixing spindle 6. The styrene conveying rotary pipe 51 is rotatably connected to the four-stage conveying mechanism 5 disposed inside the mixing spindle 6. A control drive chamber 8 is provided at the bottom of the mixing pipe 1, and the control drive chamber 8 drives the mixing spindle 6 to rotate. In this embodiment, because the fixed auxiliary agent conveying pipe 41 and the three-stage conveying mechanism 4 are connected by a rotary seal, their axes are collinear, making it impossible to install other pipes on the top of the mixing shaft 6. To meet usage requirements, a styrene conveying rotary pipe 51 is installed below the mixing shaft 6. The styrene conveying rotary pipe 51 passes through the bottom of the mixing shaft 6 and connects to the four-stage conveying mechanism 5, with a rotary seal between the styrene conveying rotary pipe 51 and the four-stage conveying mechanism 5. The mixing shaft 6 then transmits kinetic energy to the control drive chamber 8 via a transmission sprocket, causing the mixing shaft 6 to rotate. Similarly, the rotating four-stage conveying mechanism 5 sprays styrene through its end onto the secondary mixing wall flow. At this point, the main material is thinned out, allowing the auxiliary materials and styrene to be sprayed in a single layer, solving the problem of mixing large and small volumes.

[0028] In this embodiment, S5: The three-stage mixing wall flow falls to the bottom of the mixing tube 1, the mixing main shaft 6 reverses, the opening end of the bottom mixing fan blade 71 is opposite to the rotation direction, and the opening end of the top mixing fan blade 72 is opposite to the rotation direction. The liquid at the top mixing fan blade 72 is affected by the rotational force, enters through the opening end of the top mixing fan blade 72, passes through the inclined upper vortex chamber 73, and moves from top to bottom through the opening end of the bottom mixing fan blade 71. S6: The mixing main shaft 6 rotates clockwise, the opening end of the bottom mixing fan blade 71 is opposite to the rotation direction, and the opening end of the top mixing fan blade 72 is opposite to the rotation direction. The liquid at the bottom mixing fan blade 71 is affected by the rotational force, enters through the opening end of the bottom mixing fan blade 71, passes through the inclined upper vortex chamber 73, and exits through the opening end of the top mixing fan blade 72. The liquid moves from bottom to top.

[0029] In this embodiment, the above description illustrates the thin-spread mixing of materials during feeding, ensuring that the mixture falling to the bottom of the mixing tube 1 already possesses a certain degree of uniformity. At this point, the mixing main shaft 6 rotates forward or backward with the mixing tube 7. The vertical mixing direction is more difficult due to the influence of the diameter and depth of the mixing tube 1. To ensure stability during use, a simpler mixing fan blade structure leads to greater stability. Therefore, to achieve synchronous horizontal and vertical mixing, relative forces are used to realize both horizontal and vertical mixing.

[0030] In this embodiment, grooves are formed on the bottom mixing fan blade 71 and the top mixing fan blade 72, and the bottom mixing fan blade 71 and the top mixing fan blade 72 are connected through the inclined upper swivel chamber 73. Please refer to [link / reference]. Figure 3The two tanks are located facing the same direction. During clockwise rotation, the back of the top mixing blade 72 contacts the liquid, resulting in horizontal mixing at that height. The tank surface of the bottom mixing blade 71 contacts the liquid and, influenced by the relative force of the bottom mixing blade 71, the liquid enters through it, rises along the inclined upper vortex chamber 73, and flows out through the tank of the top mixing blade 72. The tank of the top mixing blade 72 is opposite to the direction of rotation, so it does not affect the discharge. At this time, the liquid below moves upward, cooperating with the top mixing blade 72 to achieve horizontal mixing. During counter-clockwise rotation, the liquid at the top mixing blade 72, influenced by the relative force, descends along the inclined upper vortex chamber 73 to the bottom mixing blade 71, and is discharged through the bottom mixing blade 71, resulting in liquid discharge from top to bottom.

[0031] In this embodiment, the resin main material conveying pipe 21 is fixedly connected to the top of the mixing pipe 1, and the bottom end of the resin main material conveying pipe 21 is spaced from the top end of the primary conveying mechanism 2.

[0032] In this embodiment, the resin main material conveying pipe 21 primarily conveys resin. The resin main material conveying pipe 21 has the largest diameter and is fixedly connected to the mixing pipe 1, ensuring its stability. The distance between the resin main material conveying pipe 21 and the primary conveying mechanism 2 prevents liquid accumulation in the top space between the primary conveying mechanism 2 and the mixing pipe 1. Because resin has fluidity, the primary conveying mechanism 2 is statically configured. Furthermore, the surface of the primary conveying mechanism 2 is provided with a Teflon structure to increase flow smoothness. If the resin used is too viscous, a cleaning mechanism or a protective gas blowing method can be added to remove residual resin from the surface of the primary conveying mechanism 2.

[0033] In this embodiment, the powder auxiliary material conveying connection pipe 31 passes through the resin main material conveying pipe 21 and is fixedly connected to the resin main material conveying pipe 21. The powder auxiliary material conveying connection pipe 31 passes through the primary conveying mechanism 2 and is fixedly connected to the primary conveying mechanism 2.

[0034] In this embodiment, the secondary conveying mechanism 3 is fixedly connected to the top of the mixing main shaft 6, and the bottom end of the powder auxiliary material conveying connecting pipe 31 is spaced from the top surface of the secondary conveying mechanism 3.

[0035] In this embodiment, the powder auxiliary material conveying connecting pipe 31 passes through the resin main material conveying pipe 21. The powder auxiliary material conveying connecting pipe 31 and the resin main material conveying pipe 21 are concentric. The diameter of the resin main material conveying pipe 21 is smaller than that of the powder auxiliary material conveying connecting pipe 31, so that the powder auxiliary material sprayed from the powder auxiliary material conveying connecting pipe 31 is located in the middle of the secondary conveying mechanism 3. Since the powder additive has poor flowability, the secondary conveying mechanism 3 is rotated by the mixing spindle 6 to disperse the powder to the wall flow area using centrifugal force, while reducing residue. Since the secondary conveying mechanism 3 cannot be connected to the primary conveying mechanism 2, the secondary conveying mechanism 3 is positioned below and driven to rotate by the power of the mixing spindle 6. The material sprayed from the powder auxiliary material conveying connecting pipe 31 will not be on the surface of the primary conveying mechanism 2. Therefore, by connecting one end of the powder auxiliary material conveying connecting pipe 31 to the resin main material conveying pipe 21 and the other end to the primary conveying mechanism 2, the primary conveying mechanism 2 can be fixed without affecting the discharge of the resin main material conveying pipe 21.

[0036] In this embodiment, the fixed auxiliary agent conveying pipe 41 passes through the powder auxiliary material conveying connecting pipe 31, and the fixed auxiliary agent conveying pipe 41 is fixedly connected to the powder auxiliary material conveying connecting pipe 31. The fixed auxiliary agent conveying pipe 41 extends into the top hole of the secondary conveying mechanism 3, and the fixed auxiliary agent conveying pipe 41 is sealed to the secondary conveying mechanism 3 through a dynamic sealing structure. The bottom end of the fixed auxiliary agent conveying pipe 41 is sealed to the tertiary conveying mechanism 4 through a dynamic sealing structure.

[0037] In this embodiment, the fixed auxiliary agent conveying pipe 41 needs to be connected to the three-stage conveying mechanism 4 from above. Therefore, after the fixed auxiliary agent conveying pipe 41 is fixedly connected to the powder auxiliary material conveying connecting pipe 31, the end of the fixed auxiliary agent conveying pipe 41 is rotatably connected to the three-stage conveying mechanism 4. At this time, when the two-stage conveying mechanism 3 and the mixing main shaft 6 rotate, the fixed auxiliary agent conveying pipe 41 and the three-stage conveying mechanism 4 still maintain a sealed connection.

[0038] In this embodiment, a dynamic sealing mechanism can also be provided at the top of the secondary conveying mechanism 3 to rotate and seal with the fixed pipeline 41 for conveying additives.

[0039] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A process for preparing body filler for vehicles, characterized in that: include: S1: 200 parts of linseed oil resin and 100 parts of bicyclic resin are combined to form the main resin material. The main resin material is transported to the surface of the primary conveying mechanism (2) through the main resin material conveying pipe (21) and dispersed in all directions. After passing through the gap between the edge of the primary conveying mechanism (2) and the inner wall of the mixing pipe (1), it is affected by gravity and slides down the mixing pipe (1) to form wall flow. S2: 300 parts of 400-mesh talc powder, 200 parts of 600-mesh talc powder, 200 parts of 1600-mesh talc powder, 20 parts of titanium dioxide, and 10 parts of organic bentonite are combined into powder auxiliary materials. The powder auxiliary materials are transported through the resin main material transport pipe (21) via the powder auxiliary material transport connecting pipe (31) to the upper end of the rotating secondary transport mechanism (3). The secondary transport mechanism (3) is rotated and centrifugally dispersed into the wall flow to form a primary mixed wall flow. S3: 4 parts cobalt isooctanoate, 0.3 parts dimethylbenzene, 5 parts wetting dispersant, and 3 parts anti-settling dispersant are combined as auxiliary materials. The auxiliary materials are transported to the three-stage conveying mechanism (4) through the auxiliary material conveying fixed pipeline (41). The three-stage conveying mechanism (4) is rotated by the force of the mixing main shaft (6). The three-stage conveying mechanism (4) disperses the auxiliary materials into the wall flow to form a two-stage mixed wall flow. S4: 40 parts of styrene are conveyed to the fourth-stage conveying mechanism (5) through the styrene conveying rotary pipe (51). The fourth-stage conveying mechanism (5) is rotated by the force of the mixing main shaft (6), dispersing the styrene into the wall flow to form a three-stage mixing wall flow, which is then mixed by the subsequent mixing return mechanism (7). S5: The three-stage mixing wall flow falls to the bottom of the mixing tube (1), the mixing main shaft (6) reverses, the opening end of the bottom mixing fan blade (71) is opposite to the rotation direction, the opening end of the top mixing fan blade (72) is opposite to the rotation direction, the liquid at the top mixing fan blade (72) is affected by the rotation force, enters through the opening end of the top mixing fan blade (72), passes through the inclined upper vortex chamber (73), and moves from top to bottom through the opening end of the bottom mixing fan blade (71); S6: The mixing spindle (6) rotates forward, the opening end of the bottom mixing fan blade (71) is opposite to the direction of rotation, and the opening end of the top mixing fan blade (72) is opposite to the direction of rotation. The liquid at the bottom mixing fan blade (71) is affected by the rotational force, enters through the opening end of the bottom mixing fan blade (71), passes through the inclined upper swirling chamber (73), and is discharged through the opening end of the top mixing fan blade (72). The liquid moves from bottom to top.

2. The preparation process of putty for vehicles according to claim 1, characterized in that: The styrene conveying rotary pipe (51) in S4 passes through the bottom end of the mixing spindle (6). The styrene conveying rotary pipe (51) is rotatably connected to the four-stage conveying mechanism (5) located inside the mixing spindle (6). A control drive chamber (8) is provided at the bottom of the mixing pipe (1), and the control drive chamber (8) drives the mixing spindle (6) to rotate.

3. The preparation process of putty for vehicles according to claim 2, characterized in that: The resin main material conveying pipe (21) is fixedly connected to the top of the mixing pipe (1), and the bottom end of the resin main material conveying pipe (21) is spaced from the top end of the primary conveying mechanism (2).

4. The preparation process of vehicle body filler according to claim 1, characterized in that: The powder auxiliary material conveying connection pipe (31) passes through the resin main material conveying pipe (21), and the powder auxiliary material conveying connection pipe (31) is fixedly connected to the resin main material conveying pipe (21). The powder auxiliary material conveying connection pipe (31) passes through the primary conveying mechanism (2), and the powder auxiliary material conveying connection pipe (31) is fixedly connected to the primary conveying mechanism (2).

5. The preparation process of putty for vehicles according to claim 1, characterized in that: The secondary conveying mechanism (3) is fixedly connected to the top of the mixing main shaft (6), and the bottom end of the powder auxiliary material conveying connection pipe (31) is spaced from the top surface of the secondary conveying mechanism (3).

6. The preparation process of putty for vehicles according to claim 1, characterized in that: The fixed auxiliary agent conveying pipe (41) passes through the powder auxiliary material conveying connecting pipe (31), the fixed auxiliary agent conveying pipe (41) is fixedly connected to the powder auxiliary material conveying connecting pipe (31), the fixed auxiliary agent conveying pipe (41) extends into the top hole of the secondary conveying mechanism (3), the fixed auxiliary agent conveying pipe (41) is sealed to the secondary conveying mechanism (3) through a dynamic sealing structure, and the bottom end of the fixed auxiliary agent conveying pipe (41) is sealed to the tertiary conveying mechanism (4) through a dynamic sealing structure.

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