Raw material mixing device for hose production

Abstract

The invention relates to the technical field of mixing, in particular to a hose production raw material mixing device which comprises a mixing tank, a dual-drive mixing mechanism is arranged in the mixing tank, and a first hose raw material mixing rod and a second hose raw material mixing rod can be synchronously driven to rotate together through a first rotating motor and a transmission mechanism. When the equipment is used, the two power sources can be used alternately, so that the situation that the service life of the equipment is shortened due to overheating and performance reduction caused by long-time operation of a single driving source is prevented, and raw materials with corresponding doses can be automatically added into the mixing tank through the automatic additive adding mechanism when the raw materials are added, so that the raw materials are uniformly mixed, and the production efficiency is improved. According to the technical scheme, the quality of the hose is ensured, the service life of equipment is prolonged, and the reliability of the equipment is improved; the problems that the service life of a motor is shortened due to overload of the motor possibly caused by a driving system for a long time, and manual adding precision is low when raw materials are added are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoses, in particular to a raw material mixing device for hose production. BACKGROUND

[0002] The raw material mixing device for hose production plays a crucial role in the hose production process, which mainly mixes various raw materials to ensure the quality of the hose product.

[0003] The raw material mixing device for hose production is usually composed of a mixing tank, a stirring support, a driving mechanism, a foot and other auxiliary components. The mixing tank is used to load and mix raw materials, while the driving mechanism drives the stirring support to rotate to mix the raw materials evenly. The foot is used to support the entire device to ensure its stability during operation.

[0004] However, if the device is used for a long time, the driving mechanism for driving the stirring support will be in a running state for a long time, which may cause the driving motor and transmission components to overheat, resulting in performance degradation or damage. Long-term operation may cause the motor to overload, thereby shortening the service life of the motor. When adding raw materials, various additives are manually added. Since the addition is manual, it cannot guarantee accurate addition of the corresponding amount of additives each time, and the precision is low. During the manual addition process, the operator may directly contact harmful additives, causing harm to the human body. Therefore, it does not meet the existing needs, and we propose a raw material mixing device for hose production. SUMMARY

[0005] The present application aims to provide a raw material mixing device for hose production to solve the problems mentioned in the background art, such as long-term use of the device, the driving mechanism for driving the stirring support being in a running state for a long time, which may cause the driving motor and transmission components to overheat, resulting in performance degradation or damage. Long-term operation may cause the motor to overload, thereby shortening the service life of the motor. When adding raw materials, various additives are manually added. Since the addition is manual, it cannot guarantee accurate addition of the corresponding amount of additives each time, and the precision is low. During the manual addition process, the operator may directly contact harmful additives, causing harm to the human body.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a raw material mixing device for hose production, comprising a mixing tank, a double-drive mixing mechanism is arranged in the mixing tank, the double-drive mixing mechanism comprises a first rotary motor, a first hose raw material mixing rod, a square connector, a second hose raw material mixing rod, a square connecting groove, a second roller bearing ring, two connecting rods and a transmission mechanism, the first hose raw material mixing rod is connected to the output shaft of the first rotary motor, the square connector is fixed to the middle position of the lower end surface of the first hose raw material mixing rod, the square connecting groove is located in the middle position of the upper end surface of the second hose raw material mixing rod, and the square connector is inserted into the inside of the square connecting groove;

[0007] The second roller bearing ring is located outside the second hose raw material mixing rod, the two connecting rods are respectively located on the two sides inside the second roller bearing ring, and the two ends of the connecting rod are respectively fixed between the second roller bearing ring and the second hose raw material mixing rod, and the transmission mechanism can drive the second roller bearing ring to rotate;

[0008] A tank cover is fixedly installed on the upper end surface of the mixing tank, a plurality of automatic additive adding mechanisms are fixedly installed on the outer side of the upper end surface of the tank cover, the automatic additive adding mechanism comprises a transparent internal threaded pipe, an electric valve, a dose adjusting plate, a through port, a sealing plate, an opening and closing mechanism and a lifting adjusting mechanism, and a capacity scale is engraved on the outer surface of the transparent internal threaded pipe;

[0009] The electric valve is installed in the middle position of the lower end surface of the transparent internal threaded pipe, the dose adjusting plate is located on the lower side inside the transparent internal threaded pipe, the dose adjusting plate and the transparent internal threaded pipe are connected through a threaded structure, and the lifting adjusting mechanism can drive the dose adjusting plate to move up and down in the transparent internal threaded pipe;

[0010] The through port is located in the middle position of the upper end surface of the dose adjusting plate, the sealing plate is located in the inside of the through port, and the opening and closing mechanism can drive the sealing plate to move up and down.

[0011] Preferably, the control panel is fixedly installed on one side of the outer surface of the mixing tank, and the automatic additive adding mechanism and the double-drive mixing mechanism are electrically connected with the control panel.

[0012] Preferably, the inner wall section shape of the square connecting groove is a square, the outer surface of the square connector is matched with the inner wall of the square connecting groove, and the square connector and the square connecting groove are connected in sliding mode.

[0013] Preferably, the transmission mechanism comprises a second rotary motor, an output shaft of the second rotary motor is connected with a rotary transmission shaft through a shaft coupling, an outer surface of the rotary transmission shaft is fixedly sleeved with a pinion, and the pinion is engaged with a large gear fixed in a middle position of an outer surface of a second roller bearing ring.

[0014] A discharge port is arranged in a middle position of a lower end surface of the mixing tank.

[0015] Preferably, the lifting adjusting mechanism comprises a square slot, an inner surface of the square slot is provided with a square plate, the inner surface of the square slot and the square plate are both square in shape, and an outer surface of the square plate is in close contact with the inner surface of the square slot.

[0016] Preferably, a motor protection shell is fixedly arranged in a middle position of an upper end surface of the square plate, a stepping motor is fixedly arranged in a middle position of an inner surface of the motor protection shell, an output shaft of the stepping motor is connected with a transmission shaft through a shaft coupling, and a circular plate is fixedly connected to the transmission shaft, and an upper end surface of the circular plate is connected to the square plate through a roller bearing.

[0017] Preferably, a first roller bearing ring is arranged below the circular plate, and is connected to the transparent inner threaded tube through a roller bearing, two vertical transmission rods are fixedly arranged on both sides of an upper end surface of the first roller bearing ring, and penetrate the dose adjusting plate, a connecting groove is arranged in a middle position of an upper end surface of the transmission rod, and a connecting head is inserted into the connecting groove, and is fixed to the circular plate.

[0018] Preferably, the opening and closing mechanism comprises an anti-invasion shell, an opening and closing stepping motor is fixedly arranged in a middle position of an inner surface of the anti-invasion shell, an inner threaded through hole is arranged below the opening and closing stepping motor, a lifting threaded rod is arranged in the inner threaded through hole and matched with an inner thread of the inner threaded through hole, and the lifting threaded rod is connected to the sealing plate through a roller bearing.

[0019] Preferably, a square insertion groove is arranged in a middle position of an upper end surface of the lifting threaded rod, a square shaft is arranged in the square insertion groove, and an upper end surface of the square shaft is connected to an output shaft of the opening and closing stepping motor through a shaft coupling, a cross section of an inner wall of the square insertion groove is square in shape, an outer surface of the square shaft is in close contact with the inner wall of the square insertion groove, and the square shaft is connected to the square insertion groove in a sliding manner.

[0020] Preferably, an arc-shaped metal cover plate is arranged behind the second rotary motor and on an outer surface of the mixing tank, and the mixing tank is fixed to the arc-shaped metal cover plate through screws.

[0021] The present invention can synchronously drive the first hose raw material mixing rod and the second hose raw material mixing rod to rotate together through the first rotating motor and the transmission mechanism. Every time the mixing tank produces a batch of hose raw materials, a driving source for driving the first hose raw material mixing rod and the second hose raw material mixing rod to rotate is replaced. The above technical solution can prevent a single driving source from running for a long time, thereby causing it to overheat, reduce its performance and shorten its service life, and the two sets of driving sources can back up each other. When one driving source fails, the other driving source can take over immediately, reducing the risk of production interruption. The above technical solution can improve the service life and reliability of the equipment.

[0022] The present invention also pours different additives into the interior of multiple transparent internally threaded tubes installed on the upper end surface of the tank cover before using the equipment, and then adjusts the dosage adjustment plate located inside the transparent internally threaded tube to the scale of the corresponding dosage through the control panel, and opens the through port located on the outer surface of the dosage adjustment plate. When the through port is opened, a portion of the additive will flow through the through port to the bottom of the dosage adjustment plate. When the bottom of the dosage adjustment plate is filled with the additive, the corresponding dosage of the additive can be obtained by closing the through port. Subsequently, in the process of adding the raw materials of the hose, the corresponding dosage of the additive can be automatically added to the interior of the mixing tank through the electric valve installed on the lower end surface of the transparent internally threaded tube. Through the above technical solution, the amount of each additive added can be accurately controlled, thereby ensuring the quality of each batch of hoses and reducing the chance of contact between the operator and the additive, thereby improving the safety protection of the equipment for the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0024] Figure 2 This is a front view of the internal structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 A magnified view of the structure at point A;

[0026] Figure 4 For the present invention Figure 3 A magnified view of the structure at C in the middle;

[0027] Figure 5 For the present invention Figure 2 A magnified view of the structure at B in the middle;

[0028] Figure 6 For the present invention Figure 5 Enlarged view of the structure at point D in the middle. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0030] Please refer to Figures 1 to 6 The raw material mixing device for hose production provided by the present application comprises a mixing tank 1, and a double-drive mixing mechanism is arranged in the mixing tank 1. The double-drive mixing mechanism comprises a first rotary motor 5, a first hose raw material mixing rod 6, a square connecting head 7, a second hose raw material mixing rod 8, a square connecting groove 9, a second roller bearing ring 10, two connecting rods 11 and a transmission mechanism. The first hose raw material mixing rod 6 is connected to the output shaft of the first rotary motor 5. The square connecting head 7 is fixed to the middle position of the lower end surface of the first hose raw material mixing rod 6. The square connecting groove 9 is located in the middle position of the upper end surface of the second hose raw material mixing rod 8, and the square connecting head 7 is inserted into the square connecting groove 9.

[0031] The second roller bearing ring 10 is located outside the second hose raw material mixing rod 8. The two connecting rods 11 are respectively located on the two sides inside the second roller bearing ring 10, and the two ends of the connecting rod 11 are respectively fixed between the second roller bearing ring 10 and the second hose raw material mixing rod 8. The transmission mechanism can drive the second roller bearing ring 10 to rotate.

[0032] A control panel 3 is fixedly installed on one side of the outer surface of the mixing tank 1, and the additive automatic adding mechanism 2 and the double-drive mixing mechanism are electrically connected with the control panel 3. The additive automatic adding mechanism 2 and the double-drive mixing mechanism can be controlled through the control panel 3.

[0033] The inner wall cross section of the square connecting groove 9 is a square shape. The outer surface of the square connecting head 7 is fitted with the inner wall of the square connecting groove 9, and the square connecting head 7 is slidably connected with the square connecting groove 9. When the device needs to be used, the raw materials of the hose are added into the mixing tank 1. Then the first rotary motor 5 is started to drive the first hose raw material mixing rod 6 connected thereto to rotate. Since the outer surface of the square connecting head 7 fixed to the lower end surface of the first hose raw material mixing rod 6 is fitted with the inner wall of the square connecting groove 9 located on the upper end surface of the second hose raw material mixing rod 8, the second hose raw material mixing rod 8 will rotate together with the first hose raw material mixing rod 6 when the first hose raw material mixing rod 6 rotates. The first hose raw material mixing rod 6 and the second hose raw material mixing rod 8 rotate to uniformly stir the raw materials of the hose.

[0034] The transmission mechanism provided by the present invention includes a second rotating motor 15, the output shaft of the second rotating motor 15 is connected to a rotating transmission shaft 14 through a coupling, a small gear 13 is fixedly sleeved on the outer surface of the rotating transmission shaft 14, and the small gear 13 is engaged with a large gear 12 fixed to the middle position of the outer surface of the second roller bearing ring 10.

[0035] Furthermore, a discharge port 16 is provided below the transmission mechanism and is installed in the middle position of the lower end surface of the mixing tank 1; when the hose raw materials inside the mixing tank 1 are evenly stirred, the first rotary motor 5 is turned off, and the raw materials are discharged through the discharge port 16. Thereafter, when the raw materials are added again for a second stirring operation, the second rotary motor 15 is started, and the second rotary motor 15 can drive the rotating transmission shaft 14 connected thereto and the small gear 13 fixedly sleeved on the outer surface of the rotating transmission shaft 14 to rotate. The rotating small gear 13 can drive the large gear 12 meshing with it and the second roller bearing ring 10 fixed to the large gear 12 to rotate. When the second roller bearing ring 10 rotates, the second hose raw material mixing rod 8 connected thereto through two connecting rods 11 will rotate synchronously. When the second hose raw material mixing rod 8 During rotation, the first hose raw material mixing rod 6 connected to it through the square connecting head 7 and the square connecting groove 9 will rotate together. When the mixing operation of the hose raw material is completed by the rotating first hose raw material mixing rod 6 and the second hose raw material mixing rod 8, the second rotating motor 15 is turned off and it is discharged through the discharge port 16. For the next mixing operation, the first rotating motor 5 is used to drive the first hose raw material mixing rod 6 and the second hose raw material mixing rod 8 to rotate. The above technical solution can prevent a single drive source from running for a long time, thereby causing it to overheat, reduce its performance and shorten its service life, and the two sets of drive sources can back up each other. When one drive source fails, the other drive source can take over immediately, reducing the risk of production interruption. The above technical solution improves the service life and reliability of the equipment.

[0036] When assembling the tank cover 4, it is necessary to align the square connector 7 located in the middle position of the lower end surface of the first hose raw material mixing rod 6 with the square connecting groove 9 located on the upper end surface of the second hose raw material mixing rod 8. When the tank cover 4 is placed on the mixing tank 1, the square connector 7 will also be inserted into the inside of the square connecting groove 9 to connect the two. When the interior of the mixing tank 1 needs to be cleaned and the tank cover 4 is removed, the square connector 7 will also move away from the inside of the square connecting groove 9. The above technical solution can prevent the first rotating motor 5 and the transmission structure from being rigidly connected through a single hose raw material mixing rod, thereby preventing the tank cover 4 from being unable to be removed.

[0037] The upper end face of the mixing tank 1 is fixedly provided with a tank cover 4, and a plurality of automatic additive adding mechanisms 2 are fixedly arranged on the outer side of the upper end face of the tank cover 4. The automatic additive adding mechanism 2 comprises a transparent inner threaded pipe 201, an electric valve 212, a dose adjusting plate 213, a through opening 214, a sealing plate 221, an opening and closing mechanism, and a lifting adjusting mechanism. The outer surface of the transparent inner threaded pipe 201 is provided with a capacity scale.

[0038] The electric valve 212 is arranged at the middle position of the lower end face of the transparent inner threaded pipe 201, and the dose adjusting plate 213 is arranged at the lower side inside the transparent inner threaded pipe 201. The dose adjusting plate 213 is connected with the transparent inner threaded pipe 201 through a threaded structure. The lifting adjusting mechanism can drive the dose adjusting plate 213 to move up and down inside the transparent inner threaded pipe 201.

[0039] The through opening 214 is arranged at the middle position of the upper end face of the dose adjusting plate 213, and the sealing plate 221 is arranged inside the through opening 214. The opening and closing mechanism can drive the sealing plate 221 to move up and down.

[0040] Please continue to refer to Figures 1 to 6 The lifting adjusting mechanism comprises a square groove 202 and a square plate 203 arranged inside the square groove 202. The inner wall of the square groove 202 and the cross section of the square plate 203 are both square. The outer surface of the square plate 203 is in close contact with the inner wall of the square groove 202. A motor protection shell 204 is fixedly arranged at the middle position of the upper end face of the square plate 203. A stepping motor 205 is fixedly arranged at the middle position inside the motor protection shell 204. The output shaft of the stepping motor 205 is connected with a transmission shaft 206 through a coupling. The lower end face of the transmission shaft 206 is fixedly connected with a circular plate 207 which is connected with the square plate 203 through a roller bearing.

[0041] Specifically, before using the mixing tank 1, the motor protection shell 204 is removed. When the motor protection shell 204 is removed, the square plate 203 fixedly arranged at the lower end face of the motor protection shell 204 will also move away from the inside of the square groove 202 arranged at the middle position of the upper end face of the transparent inner threaded pipe 201. Then, the additive is poured into the inside of the transparent inner threaded pipe 201 through the opened square groove 202. After the additive is added, the square plate 203 arranged at the lower end face of the motor protection shell 204 is aligned with the square groove 202, and then the square plate 203 is placed back to the original position. Through the square plate 203 and the square groove 202, it can be prevented that when the stepping motor 205 arranged at the upper end face of the square plate 203 rotates the transmission shaft 206, the motor protection shell 204 rotates due to the rotating force.

[0042] The lower side of the circular plate 207 is provided with a first roller bearing ring 211 connected to the inner wall of the lower end of the transparent inner threaded tube 201 through a roller bearing, the upper end surface of the first roller bearing ring 211 is fixedly provided with a vertical transmission rod 209 penetrating the dose adjustment plate 213, the middle position of the upper end surface of the transmission rod 209 is provided with a connecting groove 210, and a connecting head 208 is inserted into the connecting groove 210, the upper end surface of the connecting head 208 is fixedly connected to the circular plate 207; when the motor protective shell 204 is removed, the connecting head 208 will also be removed from the inside of the connecting groove 210, and when the motor protective shell 204 is placed back to the original position, the two connecting heads 208 need to be aligned with the two connecting grooves 210 respectively, and when the motor protective shell 204 is placed back to the original position, the two connecting heads 208 will also be inserted into the inside of the two connecting grooves 210 respectively.

[0043] When the additive is added, the stepper motor 205 is started, and the circular plate 207 and the two connecting heads 208 fixed to the lower end surface of the circular plate 207 can be driven to rotate by the stepper motor 205, since the connecting head 208 is inserted into the connecting groove 210 on the upper end surface of the transmission rod 209, when the two connecting heads 208 rotate, the two transmission rods 209 will rotate together, since the two transmission rods 209 are vertically penetrating the dose adjustment plate 213, when the two transmission rods 209 rotate simultaneously, the dose adjustment plate 213 will be driven to rotate, through the transmission of the internal threads of the transparent inner threaded tube 201, the rotating dose adjustment plate 213 will move up and down, at this time, the dose adjustment plate 213 is moved to the scale corresponding to the required additive content, and the position can be observed by the capacity scale marked on the outer surface of the transparent inner threaded tube 201.

[0044] The opening and closing mechanism of the application comprises a anti-invasion shell 215, an opening and closing stepper motor 216 is fixedly installed at the middle position of the inside of the anti-invasion shell 215, an inner threaded through hole 218 is arranged below the opening and closing stepper motor 216, a lifting threaded rod 219 matched with the inner threads of the inner threaded through hole 218 is arranged in the inner threaded through hole 218, and the lower end surface of the lifting threaded rod 219 is connected to the sealing plate 221 through a roller bearing; a square insertion slot 220 is arranged at the middle position of the upper end surface of the lifting threaded rod 219, a square shaft 217 with the upper end surface connected to the output shaft of the opening and closing stepper motor 216 through a shaft coupling is arranged in the square insertion slot 220, the cross section shape of the inner wall of the square insertion slot 220 is a square, the outer surface of the square shaft 217 is matched with the inner wall of the square insertion slot 220, and the square shaft 217 is connected to the square insertion slot 220 through sliding.

[0045] Specifically, when the dose adjustment plate 213 is moved to the corresponding position, the opening and closing stepper motor 216 is started, and the square shaft 217 connected to the opening and closing stepper motor 216 can be rotated. Since the outer surface of the square shaft 217 is in contact with the inner wall of the square slot 220 on the upper end surface of the lifting threaded rod 219, when the square shaft 217 rotates, the lifting threaded rod 219 will rotate synchronously. Through the transmission of the internal thread hole 218, the rotating lifting threaded rod 219 will move up and down. At this time, the lifting threaded rod 219 is moved upward, and the sealing plate 221 connected to the lower end surface of the lifting threaded rod 219 will gradually move away from the inside of the opening 214. When the sealing plate 221 completely moves away from the inside of the opening 214, the additive poured into the inside of the transparent internal threaded tube 201 will flow to the lower part of the dose adjustment plate 213 through the opened opening 214. When the lower part of the dose adjustment plate 213 is filled with the additive, the corresponding dose of additive can be obtained by closing the opening 214. Then, in the process of adding the hose raw material, the corresponding dose of additive can be automatically added to the inside of the mixing tank 1 through the electric valve 212 installed on the lower end surface of the transparent internal threaded tube 201. Through the above technical solution, the amount of each additive added can be accurately controlled, so as to ensure the quality of each batch of hoses and reduce the opportunity of operators contacting the additive, thereby improving the safety protection of the equipment for the operators.

[0046] The rear of the second rotary motor 15 is provided with an arc-shaped metal cover plate located on the outer surface of the mixing tank 1, and the mixing tank 1 and the arc-shaped metal cover plate are fixed by screws. The arc-shaped metal cover plate can protect the second rotary motor 15, and when the second rotary motor 15 fails, the arc-shaped metal cover plate can be removed for maintenance.

[0047] It will be apparent to those skilled in the art that the application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. Therefore, the embodiments should be considered in all aspects as exemplary and not restrictive, and the scope of the application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be included in the application.

Claims

1. A raw material mixing device for hose production, comprising a mixing tank, characterized in that: The mixing tank is provided with a dual-drive mixing mechanism, which includes a first rotary motor, a first hose raw material mixing rod, a square connector, a second hose raw material mixing rod, a square connecting groove, a second roller bearing ring, two connecting rods and a transmission mechanism, wherein the first hose raw material mixing rod is connected to the output shaft of the first rotary motor, the square connector is fixed to the middle position of the lower end surface of the first hose raw material mixing rod, the square connecting groove is located at the middle position of the upper end surface of the second hose raw material mixing rod, and the square connector is inserted into the inside of the square connecting groove; The second roller bearing ring is located outside the second hose raw material mixing rod, and the two connecting rods are respectively located on both sides of the second roller bearing ring, and the two ends of the connecting rod are respectively fixed between the second roller bearing ring and the second hose raw material mixing rod, and the transmission mechanism can drive the second roller bearing ring to rotate; The upper end surface of the mixing tank is fixedly mounted with a tank cover, and the outer side of the upper end surface of the tank cover is fixedly mounted with multiple automatic additive adding mechanisms, the automatic additive adding mechanisms comprising a transparent internally threaded tube, an electric valve, a dosage adjustment plate, a through port, a sealing plate, an opening and closing mechanism, and a lifting adjustment mechanism, and the outer surface of the transparent internally threaded tube is engraved with a capacity scale; The electric valve is installed in the middle position of the lower end surface of the transparent internally threaded tube. The dose adjustment plate is located on the lower side of the transparent internally threaded tube. The dose adjustment plate and the transparent internally threaded tube are connected by a threaded structure. The lifting adjustment mechanism can drive the dose adjustment plate to move up and down inside the transparent internally threaded tube. The through opening is located in the middle of the upper end surface of the dose adjustment plate, and the sealing plate is located inside the through opening. The opening and closing mechanism can drive the sealing plate to move up and down.

2. The raw material mixing device for hose production according to claim 1, characterized in that: A control panel is fixedly mounted on one side of the outer surface of the mixing tank, and the automatic additive adding mechanism and the dual-drive mixing mechanism are both electrically connected to the control panel.

3. The raw material mixing device for hose production according to claim 1, characterized in that: The inner wall cross-section of the square connecting groove is a square. The outer surface of the square connecting head fits the inner wall of the square connecting groove, and the square connecting head and the square connecting groove are slidably connected.

4. The raw material mixing device for hose production according to claim 1, characterized in that: The transmission mechanism includes a second rotary motor, the output shaft of which is connected to a rotary transmission shaft via a coupling, a small gear fixedly sleeved on the outer surface of the rotary transmission shaft, and the small gear meshes with a large gear fixed to a middle position of the outer surface of the second roller bearing ring; A material discharge port is provided below the transmission mechanism and is installed in the middle position of the lower end surface of the mixing tank.

5. The raw material mixing device for hose production according to claim 1, characterized in that: The lifting adjustment mechanism includes a square groove, a square plate is provided inside the square groove, the shape of the inner wall of the square groove and the cross-section of the square plate are both square, and the outer surface of the square plate fits the inner wall of the square groove.

6. The raw material mixing device for hose production according to claim 5, characterized in that: A motor protective shell is fixedly provided in the middle position of the upper end surface of the square plate, and a stepper motor is fixedly installed in the middle position inside the motor protective shell. The output shaft of the stepper motor is connected to a transmission shaft through a coupling, and the lower end surface of the transmission shaft is fixedly connected to a circular plate whose upper end surface is connected to the square plate through a roller bearing.

7. The raw material mixing device for hose production according to claim 6, characterized in that: A first roller bearing ring is provided below the circular plate and is located on the inner wall of the lower end of the transparent internally threaded tube and is connected to the transparent internally threaded tube through a roller bearing. A transmission rod that is vertically movable and penetrates the dose adjustment plate is fixed on both sides of the upper end surface of the first roller bearing ring. A connecting groove is provided in the middle position of the upper end surface of the transmission rod, and a connecting head fixed between its upper end surface and the circular plate is inserted into the inside of the connecting groove.

8. The raw material mixing device for hose production according to claim 1, characterized in that: The opening and closing mechanism includes an anti-infection shell, an opening and closing stepping motor is fixedly installed in the middle position inside the anti-infection shell, an internal threaded through hole is provided below the opening and closing stepping motor, a lifting threaded rod matching its internal thread is provided inside the internal threaded through hole, and the lower end surface of the lifting threaded rod is connected to the sealing plate through a roller bearing.

9. The raw material mixing device for hose production according to claim 8, characterized in that: A square slot is provided in the middle position of the upper end surface of the lifting threaded rod, and a square rotating shaft is provided inside the square slot, whose upper end surface is connected to the output shaft of the opening and closing stepping motor through a coupling. The inner wall cross-section of the square slot is a square, the outer surface of the square rotating shaft is in contact with the inner wall of the square slot, and the square rotating shaft and the square slot are slidingly connected.

10. The raw material mixing device for hose production according to claim 4, characterized in that: A curved metal cover plate is provided behind the second rotating motor and is located on the outer surface of the mixing tank, and the mixing tank and the curved metal cover plate are fixed by screws.

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