Injection nozzle of rubber injection molding machine

Abstract

The utility model discloses an injection nozzle of a rubber injection molding machine, which relates to the technical field of rubber injection molding and comprises an injection nozzle body, a power mechanism is movably mounted in the injection nozzle body, and a driving mechanism is fixedly mounted at the upper end of the outer side of the injection nozzle body. By the adoption of the structure, the first motor is started to drive the transmission belt wheel to rotate, then the transmission belt synchronously drives the two sets of lead screws to rotate, the sliding rod slides up and down in the side rail, the installation rail and the injection nozzle cover are driven to move up and down, and when the injection nozzle cover needs to be disassembled, the sliding plate slides in the installation rail, and the injection nozzle cover can be easily removed; during installation, the lead screw drives the sliding rod to move upwards, the injection nozzle cover is stably arranged on the outer side of the injection nozzle body in a sleeving mode, through the design, the adaptation capacity of the device is improved, injection nozzle covers of different models are allowed to be rapidly replaced, the stability in the installation process is ensured, and the overall performance and use convenience of the device are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rubber injection molding, and particularly relates to an injection nozzle of a rubber injection molding machine. Background Technique

[0002] A rubber injection molding machine is a device used for producing rubber products. Its working principle is mainly to inject preheated rubber into a mold and vulcanize it at a certain time and temperature to obtain the required rubber products. There are various types of rubber injection molding machines. According to the different injection volumes, they can be divided into micro injection machines, small injection machines, medium injection machines, large injection machines, etc. Different types of rubber injection molding machines are suitable for different scales of production requirements. The injection nozzle of a rubber injection molding machine, also known as a nozzle, is an important component of the rubber injection molding machine;

[0003] A Chinese patent with the publication number "CN219748761U" discloses an injection nozzle structure, which includes an injection nozzle cap, an injection nozzle body, and a connection device. The connection device includes a rectangular frame, a connection block, a fixing component, and an auxiliary component. The rectangular frame is fixedly connected to the injection nozzle cap, the connection block is fixedly connected to the rectangular frame, the fixing component is arranged on the injection nozzle cap, and the auxiliary component is arranged on the injection nozzle cap. The injection nozzle cap is installed on the injection nozzle body through the rectangular frame, so that the connection block is inserted into the injection nozzle body, increasing the friction force between the injection nozzle cap and the injection nozzle body, and fixing the injection nozzle cap through the fixing component, so that the injection nozzle cap maintains a stable state on the injection nozzle body. Thus, during long-term use, the injection nozzle cap can also maintain a stable state on the injection nozzle body, and it is convenient to disassemble the injection nozzle cap.

[0004] The above-mentioned device adopts magnetic adsorption type auxiliary fixation during use. However, when high-temperature molten material flows inside the injection nozzle, it will cause the overall injection nozzle to be in a high-temperature state. When high temperature contacts the magnet, it will form thermal excitation. At a relatively high temperature, the atoms and electrons inside the magnet are excited by thermal energy, which will increase their thermal motion, and the direction of the magnetic moment becomes unstable, resulting in a decrease in magnetism. According to Curie's law, the relationship between the magnetic strength of a magnetic material and temperature conforms to Curie's law, that is, within a certain temperature range, the magnetic strength is inversely proportional to the temperature. When the temperature exceeds a certain value, the magnetic strength drops sharply until it loses magnetism. The thermomagnetic effect is that in a magnetic field, an increase in temperature will cause the direction of the magnetic moment to shift, thereby reducing the magnetic strength. It can be seen that the existing device has certain defects and deficiencies during use, and the overall stability is poor, and it needs to be improved. Content of the Utility Model

[0005] Aiming at the problems mentioned in the background technique, the purpose of the utility model is to provide an injection nozzle of a rubber injection molding machine to solve the problems raised in the background technique.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] An injection nozzle of a rubber injection molding machine comprises an injection nozzle body, a power mechanism is movably installed inside the injection nozzle body, a driving mechanism is fixedly installed on the outer upper end of the injection nozzle body, a mounting mechanism is fixedly installed on the bottom of the driving mechanism, and an injection nozzle cover is installed on the bottom of the injection nozzle body through the mounting mechanism;

[0008] The mounting mechanism includes side rails, which are fixedly mounted on both sides of the injection nozzle body, a screw rod is rotatably connected inside the side rails, a sliding rod is threadedly connected to the outer surface of the screw rod, the sliding rod is slidably connected to the inside of the side rails, a mounting rail is fixedly mounted on the bottom of the sliding rod, a slide plate is slidably connected to the inside of the mounting rail, the bottom of the slide plate is fixedly connected to both sides of the top of the injection nozzle cover, and the top of the screw rod is fixedly connected to the bottom of the driving mechanism.

[0009] As an optimal technical solution, the driving mechanism includes a side frame, a transmission pulley and a mounting frame, the side frame is fixedly mounted on the upper end of one side of the injection nozzle body, the mounting frame is fixedly mounted on the upper end of the other side of the injection nozzle body, a first motor is fixedly mounted on the top of the mounting frame, the top of the side rails are rotatably connected with transmission pulleys, the transmission pulleys are connected by transmission belts, the bottom of the transmission pulley is rotatably connected to the top of the side rail, and the bottom of the transmission pulley is fixedly connected to the top of the screw rod.

[0010] As a preferred technical solution, an arc frame is fixedly installed on the outer side of the mounting frame, and the transmission belt on the outer surface of the transmission pulley is rotatably connected to the outer side of the arc frame.

[0011] As an optimal technical solution, the overall cross-sectional shape of the slide rod and the slide plate is set to a convex shape, the internal cross-sectional shape of the side rail and the mounting rail is also set to a convex shape, and the inner wall of the side rail and the inner wall of the mounting rail are fixedly connected with wear-resistant gaskets.

[0012] As a preferred technical solution, a delivery tube is fixedly mounted on an upper end of one side of the injection nozzle body, and a mounting plate is fixedly mounted on an outer end of the delivery tube.

[0013] As a preferred technical solution, mounting holes are provided at equal intervals on the outer side of the mounting plate, the mounting holes are arranged as countersunk holes, and the mounting plate is arranged as a circular ring.

[0014] As a preferred technical solution, the power mechanism includes a top cover which is fixedly installed on the top of the injection nozzle body. A second motor is fixedly installed on the top of the top cover. The output end of the second motor penetrates through the top cover and is fixedly installed with a rotating shaft which is rotatably connected to the inside of the injection nozzle body. A stirring auger is fixedly installed on the outer surface of the rotating shaft.

[0015] In summary, the present utility model mainly has the following beneficial effects:

[0016] First, by starting the first motor to drive the belt pulley to rotate, and then synchronously driving the two lead screws to rotate through the transmission belt, the sliding rod slides up and down in the side rail, thereby driving the mounting rail and the injection nozzle cover to move up and down. When the injection nozzle cover needs to be disassembled, it can be easily removed by sliding the sliding plate in the mounting rail; during installation, the lead screw drives the sliding rod to move up, and the injection nozzle cover is stably sleeved outside the injection nozzle body. This design not only improves the adaptability of the device, allows for quick replacement of injection nozzle covers of different models, but also ensures the stability during installation, enhancing the overall performance and usability of the device.

[0017] Second, by setting the power mechanism in this device, an effective connection and efficient injection with the injection molding machine are achieved. The device is connected to the injection molding machine through the mounting plate and its mounting holes at the outer end of the delivery pipe, receiving the molten fluid material. During the injection process, the second motor is started to drive the stirring auger to rotate in the injection nozzle body, forming a spiral extrusion effect, thereby optimizing the flow performance of the material in the injection nozzle, enhancing the injection pressure, and ensuring the stable and efficient outflow of the material. This design not only improves the stability of the injection process, but also helps to improve the product quality and reduce problems such as air pockets or defective products caused by uneven injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic rear view structural diagram of the present utility model;

[0020] Figure 3 is a schematic structural diagram of the overall unfolded state of the present utility model;

[0021] Figure 4 is the Figure 3 magnified structural diagram at A of the present utility model.

[0022] Reference numerals: 1, injection nozzle body; 2, power mechanism; 21, top cover; 22, second motor; 23, rotating shaft; 24, stirring auger; 3, drive mechanism; 31, side frame; 32, belt pulley; 33, mounting bracket; 34, first motor; 35, arc-shaped frame; 4, injection nozzle cover; 5, mounting mechanism; 51, side rail; 52, lead screw; 53, slide bar; 54, mounting rail; 55, slide plate; 6, delivery pipe; 7, mounting disc; 8, mounting hole. Detailed implementation mode Embodiment

[0023] Reference Figures 1 to 4 For a rubber injection molding machine injection nozzle in this embodiment, it includes an injection nozzle body 1. A power mechanism 2 is movably installed inside the injection nozzle body 1. A drive mechanism 3 is fixedly installed at the upper end of the outer side of the injection nozzle body 1. An installation mechanism 5 is fixedly installed at the bottom of the drive mechanism 3. The bottom of the injection nozzle body 1 is installed with an injection nozzle cover 4 through the installation mechanism 5;

[0024] The installation mechanism 5 includes side rails 51. The side rails 51 are fixedly installed on both sides of the injection nozzle body 1. A lead screw 52 is rotatably connected inside the side rails 51. A slide bar 53 is threadedly connected to the outer surface of the lead screw 52. The slide bar 53 is slidably connected inside the side rails 51. The bottom of the slide bar 53 is fixedly installed with a mounting rail 54. A slide plate 55 is slidably connected inside the mounting rail 54. The bottom of the slide plate 55 is fixedly connected to both sides of the top of the injection nozzle cover 4. The top of the lead screw 52 is fixedly connected to the bottom of the drive mechanism 3. The power mechanism 2 is movably installed inside the injection nozzle body 1 and is used to drive or stir fluid materials during the injection process. The drive mechanism 3 is installed at the upper end of the outer side of the injection nozzle body 1 and is connected to the injection nozzle cover 4 through the installation mechanism 5 at the bottom. The installation mechanism 5 includes side rails 51, lead screw 52, slide bar 53, mounting rail 54 and slide plate 55. The side rails 51 are fixed on both sides of the injection nozzle body 1. The lead screw 52 rotates inside the side rails 51 and is threadedly connected to the slide bar 53. The slide bar 53 slides inside the side rails 51. The mounting rail 54 is fixedly installed at its bottom. The slide plate 55 is slidably connected inside the mounting rail 54. The bottom of the slide plate 55 is fixedly connected to both sides of the top of the injection nozzle cover 4. In this way, when the lead screw 52 rotates, the slide bar 53 will move up and down, thereby driving the mounting rail 54 and the slide plate 55 to move up and down, and can quickly adjust the disassembly and assembly of the injection nozzle cover 4.

[0025] Reference Figures 1 - 4, the driving mechanism 3 includes a side frame 31, a belt pulley 32 and a mounting frame 33. The side frame 31 is fixedly installed at the upper end of one side of the injection nozzle body 1, and the mounting frame 33 is fixedly installed at the upper end of the other side of the injection nozzle body 1. A first motor 34 is fixedly installed on the top of the mounting frame 33. Belt pulleys 32 are rotatably connected to the top of the side rails 51. The belt pulleys 32 are connected by a transmission belt. The bottom of the belt pulley 32 is rotatably connected to the top of the side rail 51, and the bottom of the belt pulley 32 is fixedly connected to the top of the lead screw 52. In terms of the driving mechanism 3, a combination of a side frame 31, a belt pulley 32, a transmission belt and a first motor 34 is adopted. The side frame 31 and the mounting frame 33 are respectively fixed at the upper ends of both sides of the injection nozzle body 1. The mounting frame 33 is equipped with a first motor 34. At the top of the side rail 51, belt pulleys 32 are rotatably connected. These belt pulleys 32 are connected by a transmission belt. In particular, the bottom of the belt pulley 32 is not only rotatably connected to the top of the side rail 51, but also fixedly connected to the top of the lead screw 52. Such a design allows the first motor 34 to be started to drive the belt pulley 32 to rotate, and then the power is transmitted to the belt pulley 32 on the other side through the transmission belt, realizing the synchronous rotation of the belt pulleys 32 on both sides. Since the bottom of the belt pulley 32 is fixedly connected to the top of the lead screw 52, the lead screw 52 will also rotate accordingly. The rotation of the lead screw 52 will drive the slide bar 53 threadedly connected thereto to slide up and down inside the side rail 51, thereby driving the mounting rail 54, the slide plate 55 and the connected injection nozzle cover 4 to move up and down, facilitating the quick disassembly and assembly of the injection nozzle cover 4.

[0026] Reference Figures 3 - 4 , an arc-shaped frame 35 is fixedly installed on the outside of the mounting frame 33. The transmission belt on the outer surface of the belt pulley 32 is rotatably connected to the outside of the arc-shaped frame 35. The design of adding an arc-shaped frame 35 on the outside of the mounting frame 33. The main function of this arc-shaped frame 35 is to provide stable support and guidance for the transmission belt, ensuring the stable rotation of the transmission belt on the outer surface of the belt pulley 32. Specifically, the transmission belt is connected between the belt pulleys 32 through the outer surface of the belt pulley 32. At the same time, another part of the transmission belt is rotatably connected to the outside of the arc-shaped frame 35. Such a design makes the transmission belt more stable during the transmission process, reducing the possibility of reduced transmission efficiency or equipment failure caused by the shaking or deviation of the transmission belt. In addition, the arc-shaped frame 35 can also help maintain the tension of the transmission belt, preventing transmission failure caused by the slack of the transmission belt. By reasonably designing the shape and size of the arc-shaped frame 35, the transmission effect of the transmission belt can be further optimized, improving the overall performance and stability of the equipment.

[0027] Reference Figures 1 - 3The overall cross-sectional shape of the slide bar 53 and the slide plate 55 is set to a convex shape, and the internal cross-sectional shape of the side rail 51 and the mounting rail 54 is also set to a convex shape. The inner wall of the side rail 51 and the inner wall of the mounting rail 54 are fixedly connected with wear-resistant gaskets, and the internal cross-sectional shape of the side rail 51 and the mounting rail 54 is also correspondingly set to a convex shape to ensure that the slide bar 53 and the slide plate 55 can slide stably and smoothly therein. This convex cross-sectional design not only enhances the contact area between the slide bar 53, the slide plate 55 and the side rail 51, the mounting rail 54, thereby improving the sliding stability, but also makes the sliding process smoother and reduces the resistance caused by friction. In addition, in order to further improve the sliding performance and service life, the inner wall of the side rail 51 and the inner wall of the mounting rail 54 are fixedly connected with wear-resistant gaskets. These wear-resistant gaskets are usually made of wear-resistant materials, such as high molecular polymers or special alloys, which can effectively reduce the friction and wear between the slide bar 53, the slide plate 55 and the side rail 51, the mounting rail 54, thereby extending the service life of the equipment.

[0028] refer to Figures 1 - 3 A delivery pipe 6 is fixedly installed on the upper end of one side of the injection nozzle body 1, and a mounting plate 7 is fixedly installed on the outer end of the delivery pipe 6. A mounting plate 7 is fixedly installed on the outer end of the delivery pipe 6. This mounting plate 7 is used to connect and fix the delivery pipe 6 to the injection molding machine or other related equipment. The mounting plate 7 is usually designed with appropriate connection interfaces or holes to match the corresponding interfaces or holes on the injection molding machine or other equipment, thereby ensuring the stable installation and reliable connection of the delivery pipe 6. This design not only simplifies the installation process of the delivery pipe 6 and improves the assembly efficiency of the equipment, but also enhances the overall stability and reliability of the equipment. At the same time, the mounting plate 7 also provides convenience for the maintenance and replacement of the equipment. When the delivery pipe 6 needs to be repaired or replaced, it can be easily completed by removing the mounting plate 7.

[0029] refer to Figures 1 - 2 , mounting holes 8 are opened at equal intervals on the outside of the mounting plate 7, and the mounting holes 8 are set as countersunk holes. The mounting plate 7 is set as a circular ring. Mounting holes 8 are opened at equal intervals on the outside of the mounting plate 7, and these mounting holes 8 are set as countersunk holes, which helps to ensure that the heads of the connecting bolts or screws can be completely sunk into the holes, making the surface of the mounting plate 7 smoother and reducing the safety hazards caused by the protruding heads of the bolts or screws. In addition, the mounting plate 7 is designed to be a circular ring. This shape not only meets the installation requirements of the conveying pipe 6, but also ensures that the mounting plate 7 can be evenly distributed on the outside of the conveying pipe 6, thereby enhancing the stability of the mounting plate 7. The circular ring design also enables the mounting plate 7 to disperse the force more evenly when subjected to force, thereby improving its bearing capacity.

[0030] refer to Figure 3, the power mechanism 2 includes a top cover 21. The top cover 21 is fixedly installed on the top of the injection nozzle body 1. A second motor 22 is fixedly installed on the top of the top cover 21. The output end of the second motor 22 penetrates through the top cover 21 and is fixedly installed with a rotating shaft 23. The rotating shaft 23 is rotatably connected to the inside of the injection nozzle body 1. A stirring auger 24 is fixedly installed on the outer surface of the rotating shaft 23. The top cover 21 is fixedly installed on the top of the injection nozzle body 1, providing a closed and stable environment to protect the internal power mechanism 2 from external interference. A second motor 22 is fixedly installed on the top of the top cover 21, serving as the driving force source of the entire power mechanism 2. The output end of the second motor 22 penetrates through the top cover 21 and is connected to the rotating shaft 23 fixedly installed inside. When the second motor 22 is started, it drives the rotating shaft 23 to rotate inside the injection nozzle body 1. This rotation is not a simple rotation but is accompanied by specific functions and purposes. A stirring auger 24 is fixedly installed on the outer surface of the rotating shaft 23, which conveys materials from one position to another by rotating. Here, the main function of the stirring auger 24 is to convey the molten rubber from the inlet of the injection nozzle body 1 to the outlet, ensuring the continuity and stability of the injection process. Driven by the second motor 22, the stirring auger 24 can rotate inside the injection nozzle body 1, continuously pushing the molten rubber forward. This design not only improves the efficiency and accuracy of rubber injection but also ensures the uniformity and stability of the rubber during injection, thus improving the quality of the product.

[0031] Principle of use and advantages: By setting the driving mechanism 3 and the mounting mechanism 5, during the use of this device, the first motor 34 can be started to operate. The first motor 34 drives the belt pulley 32 to rotate. The belt pulleys 32 are connected by a transmission belt. The two belt pulleys 32 are assisted by the transmission belt to drive both belt pulleys 32 to rotate synchronously. When both belt pulleys 32 rotate, they can assist in driving the lead screws 52 inside the two side rails 51 to rotate. By the rotation of the lead screws 52, the sliding rods 53 can be driven to slide up and down inside the side rails 51. By the up and down sliding of the sliding rods 53, the mounting rails 54 can be assisted to move up and down. By moving the mounting rail 54 downward, the injection nozzle cover 4 can be removed from the bottom of the injection nozzle body 1. At this time, the injection nozzle cover 4 can be removed by adjusting the sliding of the sliding plate 55 inside the mounting rail 54. This makes the whole device easy to disassemble and replace the injection nozzle cover 4, improving the adaptability of the whole device during use. At the same time, during the installation process, when the lead screw 52 drives the sliding rod 53 to move upward, the injection nozzle cover 4 can be driven to move upward and sleeved on the outside of the injection nozzle body 1. Through the mutual fixation of the lead screw 52 and the sliding rod 53, the injection nozzle cover 4 can be stably installed. This makes the device easy to disassemble and assemble while having strong stability.

[0032] By setting the power mechanism 2, during the use of this device, it can be assisted to connect with an injection molding machine through the mounting plate 7 at the outer end of the conveying pipe 6 and the mounting holes 8 on its outer side. During the practical process, the injection molding machine transports the molten fluid material into the interior of the injection nozzle body 1. At this time, by starting the second motor 22 to operate, the stirring auger 24 is driven by the second motor 22 to rotate inside the injection nozzle body 1. The rotation of the stirring auger 24 forms a spiral extrusion, promoting the material to flow more efficiently and stably inside the injection nozzle body 1, enabling the injection material to flow out of the interior of the injection nozzle body 1 with a higher pressure. The overall injection stability is strong, which can improve the product quality and avoid the situation of hollow and defective products during injection.

Claims

1. An injection nozzle of a rubber injection molding machine, comprising an injection nozzle body (1), characterized in that: A power mechanism (2) is movably installed inside the injection nozzle body (1), a driving mechanism (3) is fixedly installed on the upper end of the outer side of the injection nozzle body (1), a mounting mechanism (5) is fixedly installed on the bottom of the driving mechanism (3), and an injection nozzle cover (4) is installed on the bottom of the injection nozzle body (1) via the mounting mechanism (5); The mounting mechanism (5) comprises a side rail (51), wherein the side rail (51) is fixedly mounted on both sides of the injection nozzle body (1), wherein a screw rod (52) is rotatably connected inside the side rail (51), wherein the outer surface of the screw rod (52) is threadedly connected to a slide rod (53), wherein the slide rod (53) is slidably connected inside the side rail (51), wherein a mounting rail (54) is fixedly mounted on the bottom of the slide rod (53), wherein a slide plate (55) is slidably connected inside the mounting rail (54), wherein the bottom of the slide plate (55) is fixedly connected to both sides of the top of the injection nozzle cover (4), and the top of the screw rod (52) is fixedly connected to the bottom of the driving mechanism (3).

2. The injection nozzle of a rubber injection molding machine according to claim 1, characterized in that: The driving mechanism (3) comprises a side frame (31), a transmission pulley (32) and a mounting frame (33); the side frame (31) is fixedly mounted on an upper end of one side of the injection nozzle body (1); the mounting frame (33) is fixedly mounted on an upper end of the other side of the injection nozzle body (1); a first motor (34) is fixedly mounted on the top of the mounting frame (33); the tops of the side rails (51) are rotatably connected to the transmission pulleys (32); the transmission pulleys (32) are connected to each other via a transmission belt; the bottom of the transmission pulley (32) is rotatably connected to the top of the side rail (51); and the bottom of the transmission pulley (32) is fixedly connected to the top of the screw rod (52).

3. The injection nozzle of a rubber injection molding machine according to claim 2, characterized in that: An arc frame (35) is fixedly mounted on the outer side of the mounting frame (33), and a transmission belt on the outer surface of the transmission pulley (32) is rotatably connected to the outer side of the arc frame (35).

4. The injection nozzle of a rubber injection molding machine according to claim 3, characterized in that: The overall cross-sectional shapes of the slide bar (53) and the slide plate (55) are both arranged in a convex shape, the internal cross-sectional shapes of the side rail (51) and the mounting rail (54) are also arranged in a convex shape, and the inner walls of the side rail (51) and the mounting rail (54) are both fixedly connected with wear-resistant gaskets.

5. The injection nozzle of a rubber injection molding machine according to claim 1, characterized in that: A delivery tube (6) is fixedly mounted on the upper end of one side of the injection nozzle body (1), and a mounting plate (7) is fixedly mounted on the outer end of the delivery tube (6).

6. The injection nozzle of a rubber injection molding machine according to claim 5, characterized in that: The outer side of the mounting plate (7) is provided with mounting holes (8) at equal intervals, the mounting holes (8) are arranged as countersunk holes, and the mounting plate (7) is arranged in a circular ring shape.

7. The injection nozzle of a rubber injection molding machine according to claim 5, characterized in that: The power mechanism (2) comprises a top cover (21), wherein the top cover (21) is fixedly mounted on the top of the injection nozzle body (1), a second motor (22) is fixedly mounted on the top of the top cover (21), an output end of the second motor (22) passes through the top cover (21) and a rotating shaft (23) is fixedly mounted thereon, the rotating shaft (23) is rotatably connected to the inside of the injection nozzle body (1), and a stirring auger (24) is fixedly mounted on the outer surface of the rotating shaft (23).

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