Automatic packing device for bottled cleaning agent

Abstract

The utility model discloses a kind of bottled cleaning agent automatic packing device, it includes conveying platform, positioning mechanism, encapsulation subassembly and adjusting mechanism.Conveying platform is equipped with slide rail and sliding block, and sliding block connects bearing plate;Positioning mechanism is connected first clamping arm and second clamping arm by elastic connecting rod, and inside is equipped with flexible gasket;Encapsulation subassembly includes lifting platform and encapsulation head, and encapsulation head bottom is equipped with heat sealing module and compression claw;Adjusting mechanism moves sliding block by screw rod drive.This device can accurately adjust bearing plate position, automatically adapt bottle size, ensure encapsulation sealing property and firmness, simultaneously reduce heat residue by cooling air flue, improve efficiency.Auxiliary support mechanism enhances stability, and is suitable for the automation packaging demand of multiple specifications bottle body.

Description

Technical Field

[0001] This utility model relates to the field of automated packaging equipment technology, and in particular to an automatic packaging device for bottled cleaning agents. Background Technology

[0002] Bottled cleaning agents are common household chemicals widely used for cleaning in homes, industries, and public places. With increasing market demand, the production and packaging efficiency of cleaning agents has become a key focus for the industry. Depending on different usage scenarios and functional requirements, the packaging forms and technologies for bottled cleaning agents are constantly evolving to improve production efficiency and reduce costs. However, in actual production, the packaging process for bottled cleaning agents typically involves multiple steps, including bottle conveying, filling, sealing, and boxing. These steps require a high degree of coordination; otherwise, it may lead to decreased production efficiency or inconsistent packaging quality.

[0003] Currently, some companies use semi-automated equipment to package bottled cleaning agents, but this type of equipment usually relies on manual intervention and is difficult to automate the entire process. Meanwhile, some existing technologies disclose packaging devices with a high degree of automation, such as multi-station rotary table designs for rapid bottle transport and sealing, but these are complex in structure and have high maintenance costs. Furthermore, some equipment has poor adaptability when handling bottles of different sizes, requiring frequent component replacements or parameter adjustments, increasing operational difficulty and time costs.

[0004] During their research and practice, the inventors discovered that while existing automatic packaging devices for bottled cleaning agents can improve efficiency to some extent, there is still room for improvement in terms of flexibility, stability, and economy, especially when meeting diverse production needs. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic packaging device for bottled cleaning agents, which solves the problems mentioned in the background art.

[0006] This utility model is implemented as follows: an automatic packaging device for bottled cleaning agents includes a conveying platform, a positioning mechanism, a packaging component, and an adjusting mechanism. The top of the conveying platform is equipped with a slide rail, on which several sliders are mounted. A support plate is connected above the sliders, and the support plate is used to hold the bottles. The positioning mechanism includes a first clamping arm and a second clamping arm symmetrically arranged on both sides of the conveying platform. The first and second clamping arms are connected by an elastic connecting rod, and flexible gaskets are provided on the inner sides of both the first and second clamping arms. The packaging component includes a lifting platform located at the end of the conveying platform. A packaging head is located on the top of the lifting platform, and a heat-sealing module is located at the bottom of the packaging head. Several clamping claws are distributed around the heat-sealing module. The adjusting mechanism includes a drive unit located below the slide rail. A lead screw is connected to the output end of the drive unit, and the lead screw passes through the slider and is threadedly engaged with the slider.

[0007] The automatic packaging device for bottled cleaning agents also includes:

[0008] The guide rod is fixed at both ends to the two side walls of the conveying platform, and the guide rod passes through the slider and slides with the slider; a compression spring is sleeved on the outside of the guide rod, one end of the compression spring is connected to the slider, and the other end is connected to the side wall of the conveying platform.

[0009] The limiting block is set at both ends of the slide rail, and the top of the limiting block has a groove with a buffer pad embedded in the groove; the inner side of the limiting block is equipped with a photoelectric sensor, which is used to detect the position of the support plate.

[0010] The adjusting rod has one end hinged to the first clamping arm and the other end passing through the conveying platform and connected to a knob. The outer side of the knob is provided with anti-slip texture. The middle part of the adjusting rod is provided with a threaded section, which is threaded with the side wall of the conveying platform.

[0011] The first and second clamping arms each have several protrusions on their inner sides, and the surfaces of the protrusions are coated with a wear-resistant coating. The two ends of the elastic link are connected to the first and second clamping arms respectively by pins, and the middle part of the elastic link has a corrugated elastic section.

[0012] Optionally, the top of the encapsulation head is provided with a cooling air duct, the inlet of which is connected to a fan, and the outlet of which faces the heat sealing module; the side of the encapsulation head is provided with several guide holes, and the inside of the guide holes is provided with a filter screen; the bottom of the encapsulation head is provided with an annular groove, and a sealing ring is embedded in the annular groove.

[0013] Optionally, it also includes an auxiliary support mechanism disposed below the conveying platform, the auxiliary support mechanism comprising:

[0014] The support column is fixed to the ground at its bottom and has a support plate at its top. The top of the support plate has several ball bearings. The side of the support plate has reinforcing ribs. One end of the reinforcing ribs is connected to the support column and the other end is welded to the support plate.

[0015] The adjusting foot is located at the bottom of the support column. The outer side of the adjusting foot is threaded, and the threaded section mates with the nut pre-embedded in the ground. The top of the adjusting foot is equipped with a locking nut, which is used to fix the position of the adjusting foot.

[0016] Optionally, the drive unit includes a motor, the output shaft of which is connected to a reducer, and the output end of the reducer is connected to a lead screw; the motor housing is provided with heat dissipation fins, and the surface of the heat dissipation fins is coated with an anti-corrosion coating; the bottom of the motor is provided with a mounting base, and the four corners of the mounting base are provided with mounting holes, and rubber pads are embedded in the mounting holes;

[0017] Optionally, the lead screw is provided with bearing seats at both ends, a sealing cover is provided on the inner side of the bearing seat, and a felt ring is provided on the inner side of the sealing cover; the surface of the lead screw is provided with a plating layer, and the plating layer is made of nickel-chromium alloy.

[0018] Optionally, the top of the slider is provided with a connecting hole, and a bolt is embedded in the connecting hole. The top of the bolt is connected to the bottom of the support plate. The bottom of the slider is provided with a dovetail groove, which slides in cooperation with the top of the slide rail. The side of the slider is provided with scale lines, which are used to indicate the position of the slider.

[0019] Optionally, the inner side of the clamping claw is provided with an arc-shaped groove, and the surface of the arc-shaped groove is provided with anti-slip texture; the top of the clamping claw is provided with a connecting rod, and a return spring is sleeved on the outer side of the connecting rod. One end of the return spring is connected to the clamping claw, and the other end is connected to the bottom of the encapsulation head.

[0020] Optionally, a flow divider is provided at the outlet of the cooling air duct, and the surface of the flow divider is provided with a plurality of through holes, the diameter of which gradually decreases outward from the center of the flow divider; a filter screen is provided at the inlet of the cooling air duct, and the filter screen is made of stainless steel.

[0021] Optionally, the top of the photoelectric sensor is provided with a protective cover made of transparent plastic; the bottom of the photoelectric sensor is provided with a mounting bracket, one end of which is connected to a limiting block, and the other end is threaded into the photoelectric sensor.

[0022] Optionally, the thread pitch of the adjusting rod is 2mm, the diameter of the knob is 50mm, and the surface of the knob is provided with anti-slip texture; the middle of the adjusting rod is provided with a scale mark, which is used to indicate the rotation angle of the adjusting rod.

[0023] Technical effects of this utility model:

[0024] This invention achieves precise movement of the support plate through the cooperation of a slide rail and a slider, combined with a screw drive unit, thereby improving the stability of bottle conveying. The first and second clamping arms are connected by an elastic link, which can automatically adjust the clamping force according to the size of the bottle, avoiding the need for frequent component replacement. The heat sealing module of the sealing head works in conjunction with the clamping claw to ensure the sealing and firmness of the bottle sealing. The design of the cooling air duct effectively reduces heat residue during the sealing process and improves production efficiency. The auxiliary support mechanism enhances the overall stability of the device through the cooperation of the adjustable feet and support plate, adapting to different ground conditions. The combination of the motor and reducer of the drive unit provides stable driving force, while the heat dissipation fins and anti-corrosion coating extend the service life of the equipment.

[0025] This invention has significant advantages in terms of flexibility, stability and economy, and is especially suitable for the automated packaging needs of bottles of various sizes, solving the problems of complex operation, high maintenance costs and poor adaptability in the prior art. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the automatic packaging device for bottled cleaning agents of this utility model, showing the layout relationship of the conveying platform, positioning mechanism, packaging components and adjustment mechanism.

[0027] Figure 2 This is a partial enlarged view of the positioning mechanism and the support plate of this utility model, showing in detail the first clamping arm, the second clamping arm, the elastic connecting rod, and the cooperation structure between the slider and the slide rail.

[0028] Figure 3 This is a structural schematic diagram of the packaging component of this utility model, which focuses on the composition and connection relationship of the packaging head, heat sealing module, clamping claw and cooling air channel.

[0029] The attached figures are labeled as follows: 1. Conveying platform; 2. Slide rail; 3. Slider; 4. Bearing plate; 5. First clamping arm; 6. Second clamping arm; 7. Elastic connecting rod; 8. Flexible gasket; 9. Lifting platform; 10. Sealing head; 11. Heat sealing module; 12. Clamping claw; 13. Drive unit; 14. Lead screw; 15. Guide rod; 16. Compression spring; 17. Limit block; 18. Photoelectric sensor; 19. Cooling duct; 20. Fan. Detailed Implementation

[0030] This utility model provides an automatic packaging device for bottled cleaning agents, the structure of which is as follows: Figure 1As shown, the assembly includes a conveying platform 1, a slide rail 2, a slider 3, a bearing plate 4, a first clamping arm 5, a second clamping arm 6, an elastic connecting rod 7, a flexible gasket 8, a lifting platform 9, a sealing head 10, a heat sealing module 11, a clamping claw 12, a drive unit 13, a lead screw 14, a guide rod 15, a compression spring 16, a limiting block 17, a photoelectric sensor 18, a cooling air duct 19, and a fan 20. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] A slide rail 2 is installed on the top of the conveying platform 1, extending along the length of the platform. Several sliders 3 are mounted on the slide rail 2. The sliders 3 are engaged with the slide rail 2 via dovetail grooves. A connecting hole is provided on the top of the slider 3, into which a bolt is embedded. The top of the bolt connects to the bottom of the support plate 4. The support plate 4 is used to hold the bottle; its surface is flat and has sufficient strength to support the bottle. The bottom of the slider 3 has a dovetail groove that slides in conjunction with the top of the slide rail 2. The side of the slider 3 also has scale lines to indicate its position on the slide rail 2. A drive unit 13 is located below the slide rail 2. The drive unit 13 includes a motor and a reducer. The output shaft of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to one end of a lead screw 14. The lead screw 14 passes through the slider 3 and is threaded into it. When the motor starts, the lead screw 14 rotates, causing the slider 3 to move along the slide rail 2, thereby achieving precise position adjustment of the support plate 4. The lead screw 14 has bearing seats at both ends, and a sealing cover is provided on the inner side of the bearing seat. A felt ring is provided on the inner side of the sealing cover to prevent dust from entering the bearing seat. The surface of the lead screw 14 is coated with a nickel-chromium alloy, which improves the wear resistance and corrosion resistance of the lead screw 14.

[0032] Guide rods 15 are fixed to both sides of the slide rail 2. The guide rods 15 pass through the slider 3 and slide in cooperation with the slider 3. A compression spring 16 is sleeved on the outer side of the guide rod 15. One end of the compression spring 16 is connected to the slider 3, and the other end is connected to the side wall of the conveying platform 1. The function of the guide rods 15 is to restrict the movement direction of the slider 3, so that it can only move along the length direction of the slide rail 2. At the same time, the compression spring 16 can buffer the impact force generated by the slider 3 during movement, improving the smoothness of the device operation. Limit blocks 17 are set at both ends of the slide rail 2. The top of the limit block 17 has a groove, and a buffer pad is embedded in the groove to absorb the impact force when the slider 3 reaches the two ends of the slide rail 2. A photoelectric sensor 18 is set on the inner side of the limit block 17. The top of the photoelectric sensor 18 is equipped with a protective cover. The protective cover is made of transparent plastic to protect the photoelectric sensor 18 from the influence of the external environment. The bottom of the photoelectric sensor 18 is equipped with a mounting bracket. One end of the mounting bracket is connected to the limit block 17, and the other end is threaded into the photoelectric sensor 18. The photoelectric sensor 18 is used to detect the position of the carrier plate 4. When the carrier plate 4 reaches the designated position, the photoelectric sensor 18 sends a signal to control the drive unit 13 to stop running.

[0033] The conveying platform 1 is symmetrically equipped with positioning mechanisms on both sides. Each positioning mechanism includes a first clamping arm 5 and a second clamping arm 6, connected by an elastic connecting rod 7. The two ends of the elastic connecting rod 7 are connected to the first clamping arm 5 and the second clamping arm 6 respectively via pins. The middle of the elastic connecting rod 7 has a corrugated elastic section that deforms under external force, thereby adjusting the distance between the first clamping arm 5 and the second clamping arm 6. Flexible pads 8 are provided on the inner sides of both the first clamping arm 5 and the second clamping arm 6 to prevent damage to the bottle during clamping. Several protrusions are also provided on the inner sides of the first clamping arm 5 and the second clamping arm 6, with a wear-resistant coating to improve their service life. An adjusting rod is provided on the outer side of the first clamping arm 5. One end of the adjusting rod is hinged to the first clamping arm 5, and the other end passes through the conveying platform 1 and is connected to a knob. The knob has anti-slip textures on its outer side for easy manual rotation by the operator. The adjusting rod has a threaded section in the middle, which engages with the threaded side wall of the conveying platform 1. When the knob is rotated, the adjusting rod moves along the threaded section, thereby pushing the first clamping arm 5 inward or outward to accommodate bottles of different sizes. The thread pitch of the adjusting rod is 2mm, the diameter of the knob is 50mm, and the adjusting rod has a scale mark in the middle to indicate the rotation angle of the adjusting rod.

[0034] A sealing assembly is provided at the end of the conveying platform 1, which includes a lifting platform 9 and a sealing head 10. The sealing head 10 is located at the top of the lifting platform 9, and a heat-sealing module 11 is located at the bottom of the sealing head 10. Several clamping claws 12 are distributed around the heat-sealing module 11. The inner side of each clamping claw 12 has an arc-shaped groove with anti-slip textures to increase friction between the clamping claw 12 and the bottle, ensuring stability of the bottle during the sealing process. A connecting rod is located at the top of each clamping claw 12, and a return spring is fitted onto the outer side of the connecting rod. One end of the return spring is connected to the clamping claw 12, and the other end is connected to the bottom of the sealing head 10. When the heat-sealing module 11 moves downward, the clamping claws 12 press the bottle tightly under the action of the return spring, thus ensuring the sealing performance of the sealing process. A cooling air duct 19 is located at the top of the sealing head 10. A fan 20 is connected to the inlet of the cooling air duct 19, and the outlet of the cooling air duct 19 faces the heat-sealing module 11. A flow divider is provided at the outlet of the cooling air duct 19. The surface of the flow divider has several through holes, the diameter of which gradually decreases outwards from the center of the flow divider, allowing cooling air to be evenly directed towards the heat-sealing module 11, reducing residual heat generated during the sealing process. A filter screen made of stainless steel is provided at the inlet of the cooling air duct 19 to filter impurities in the air and prevent clogging. Several guide holes are provided on the side of the sealing head 10, with filters inside the guide holes to discharge exhaust gases generated during the sealing process. An annular groove is provided at the bottom of the sealing head 10, with a sealing ring embedded within it to prevent cooling air leakage from the bottom of the sealing head 10.

[0035] An auxiliary support mechanism is installed below the conveyor platform 1, comprising a support column and a support plate. The bottom of the support column is fixed to the ground, and the top is equipped with a support plate. Several ball bearings are located on the top of the support plate to reduce friction between the support plate and the conveyor platform 1, improving the stability of the device's operation. Reinforcing ribs are provided on the sides of the support plate, with one end connected to the support column and the other end welded to the support plate, enhancing the overall strength of the auxiliary support mechanism. An adjusting foot is located at the bottom of the support column, with threads on the outer side. The threaded section engages with a nut pre-embedded in the ground, allowing the height of the support column to be adjusted by rotating the adjusting foot to adapt to different ground conditions. A locking nut is located at the top of the adjusting foot to secure its position and prevent loosening during use.

[0036] The working principle of this utility model is as follows: First, the bottle is placed on the support plate 4. The drive unit 13 is started, and the motor drives the lead screw 14 to rotate. The lead screw 14 pushes the slider 3 to move along the slide rail 2 through the threaded engagement. The slider 3 drives the support plate 4 to move between the first clamping arm 5 and the second clamping arm 6. The first clamping arm 5 and the second clamping arm 6 are connected by an elastic connecting rod 7. The elastic segment of the elastic connecting rod 7 deforms, thereby adjusting the distance between the first clamping arm 5 and the second clamping arm 6, so that the bottle is clamped between the first clamping arm 5 and the second clamping arm 6. The photoelectric sensor 18 detects the position of the support plate 4. When the support plate 4 reaches the designated position, the photoelectric sensor 18 sends a signal to control the drive unit 13 to stop running. Then, the lifting platform 9 rises, the sealing head 10 moves downward, the heat sealing module 11 seals the bottle, and the clamping claw 12 presses the bottle tightly under the action of the return spring to ensure the sealing of the sealing process. After encapsulation, the fan 20 in the cooling duct 19 starts, and the cooling air is evenly blown onto the heat sealing module 11 through the distributor plate, reducing the residual heat generated during the encapsulation process. Finally, the drive unit 13 starts again, and the slider 3 drives the carrier plate 4 to move to the next station, completing the entire encapsulation process. In order to enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0037] First, the operator places the bottle to be packaged on the support plate 4, which is connected to the slider 3 by bolts. As the slider 3 moves along the slide rail 2, its dovetail groove at the bottom engages tightly with the slide rail 2, ensuring a stable and precise movement trajectory. After the drive unit 13 is started, the motor drives the reducer, and the reducer's output drives the lead screw 14 to rotate. Since the lead screw 14 passes through the slider 3 and is threaded into it, the rotational motion of the lead screw 14 is converted into linear motion of the slider 3 along the slide rail 2, thereby pushing the support plate 4 towards the positioning mechanism. During this process, the guide rod 15 constrains the direction of movement of the slider 3 to prevent it from deviating, while the compression spring 16 buffers the impact force that may be generated during the movement of the slider 3, improving the smoothness of the device's operation.

[0038] When the support plate 4 moves between the first clamping arm 5 and the second clamping arm 6, the corrugated elastic section of the elastic link 7 deforms, causing the distance between the first clamping arm 5 and the second clamping arm 6 to automatically adjust to fit the size of the bottle. The flexible pad 8 adheres to the surface of the bottle to avoid damage, while the protrusions increase the clamping friction, ensuring the bottle remains stable during clamping. At this time, the photoelectric sensor 18 detects that the support plate 4 has reached the designated position and stops the drive unit 13 via a signal control, thereby completing the precise positioning of the bottle.

[0039] Subsequently, the lifting platform 9 is activated, the sealing head 10 moves downward, and the heat sealing module 11 approaches the top of the bottle to perform the sealing operation. During the sealing process, the clamping claws 12 press the bottle tightly under the action of the return spring, and the anti-slip texture in the arc groove further enhances the friction between the clamping claws 12 and the bottle, ensuring that the bottle does not shift. The heat sealing module 11 heats and seals the top of the bottle, while the sealing ring embedded in the annular groove at the bottom of the sealing head 10 prevents cooling air leakage, ensuring the sealing and reliability of the sealing process.

[0040] After encapsulation, the fan 20 starts, and cooling air enters from the inlet of the cooling duct 19 and is evenly blown onto the heat-sealing module 11 through the distributor plate. The through-hole design on the distributor plate allows the cooling air to be distributed with a gradually decreasing flow rate from the center outwards, effectively reducing residual heat during the encapsulation process. The stainless steel filter at the inlet of the cooling duct 19 filters impurities in the air to prevent duct blockage, while the guide holes on the side of the encapsulation head 10 discharge the exhaust gas generated during the encapsulation process, ensuring a clean working environment.

[0041] Finally, the drive unit 13 restarts, and the lead screw 14 rotates in the opposite direction, driving the slider 3 to move along the slide rail 2 to the next station. During the movement of the slider 3, the buffer pad on the top of the limit block 17 absorbs the impact force when the slider 3 reaches both ends of the slide rail 2, protecting the device from mechanical damage. At the same time, the ball bearings in the auxiliary support mechanism reduce the friction between the support plate and the conveying platform 1, and the adjustable feet at the bottom of the support column can be rotated to adjust the height to adapt to different ground conditions, thereby enhancing the overall stability of the device.

[0042] Through the above steps, this utility model realizes fully automated operation of bottle conveying, positioning, sealing and cooling, which significantly improves production efficiency and packaging quality, while reducing the need for manual intervention and meeting the automated packaging needs of bottles of various specifications.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic packaging device for bottled cleaning agents, comprising a conveying platform (1), a slide rail (2) on the top of the conveying platform (1), a plurality of sliders (3) mounted on the slide rail (2), and a support plate (4) connected above the sliders (3), characterized in that, The automatic packaging device for bottled cleaning agents also includes: The positioning mechanism includes a first clamping arm (5) and a second clamping arm (6) symmetrically arranged on both sides of the conveying platform (1). The first clamping arm (5) and the second clamping arm (6) are connected by an elastic connecting rod (7). The inner sides of the first clamping arm (5) and the second clamping arm (6) are provided with flexible pads (8). The packaging assembly includes a lifting platform (9) located at the end of the conveying platform (1), a packaging head (10) is provided on the top of the lifting platform (9), a heat sealing module (11) is provided at the bottom of the packaging head (10), and a number of clamping claws (12) are distributed around the heat sealing module (11). The adjustment mechanism includes a drive unit (13) located below the slide rail (2), and the output end of the drive unit (13) is connected to a lead screw (14), which passes through the slider (3) and is threadedly engaged with the slider (3).

2. The automatic packaging device for bottled cleaning agents as described in claim 1, characterized in that, It also includes a guide rod (15), the two ends of which are fixed to the two side walls of the conveying platform (1). The guide rod (15) passes through the slider (3) and slides with the slider (3). A compression spring (16) is sleeved on the outside of the guide rod (15). One end of the compression spring (16) is connected to the slider (3), and the other end is connected to the side wall of the conveying platform (1).

3. The automatic packaging device for bottled cleaning agents as described in claim 1, characterized in that, It also includes a limiting block (17), which is set at both ends of the slide rail (2). The top of the limiting block (17) has a groove, and a buffer pad is embedded in the groove. The inner side of the limiting block (17) is provided with a photoelectric sensor (18), which is used to detect the position of the support plate (4).

4. The automatic packaging device for bottled cleaning agents as described in claim 1, characterized in that, It also includes an adjusting rod, one end of which is hinged to the first clamping arm (5), and the other end passes through the conveying platform (1) and is connected to a knob. The outer side of the knob is provided with anti-slip texture, and the middle part of the adjusting rod is provided with a threaded section, which is threaded with the side wall of the conveying platform (1).

5. The automatic packaging device for bottled cleaning agents as described in claim 1, characterized in that, The top of the encapsulation head (10) is provided with a cooling air duct (19), the inlet of the cooling air duct (19) is connected to a fan (20), and the outlet of the cooling air duct (19) faces the heat sealing module (11).

6. The automatic packaging device for bottled cleaning agents as described in claim 1, characterized in that, It also includes an auxiliary support mechanism, which includes a support column and a support plate. The bottom of the support column is fixed to the ground, and the top is provided with a support plate. The top of the support plate is provided with several ball bearings, and the side of the support plate is provided with reinforcing ribs. One end of the reinforcing rib is connected to the support column, and the other end is welded to the support plate.

7. The automatic packaging device for bottled cleaning agents as described in claim 1, characterized in that, The drive unit (13) includes a motor, the output shaft of which is connected to a reducer, the output end of which is connected to a lead screw (14), and the motor housing is provided with heat dissipation fins, the surface of which is coated with an anti-corrosion coating.

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