A synchronous belt type multi-range mechanism

Abstract

The present invention relates to the technical field of packaging equipment, and in particular to a synchronous belt type double-stroke mechanism, which adopts a single power to realize double-stroke extension and retraction of a three-stage structure, completes material delivery, saves space and cost, and has good practicality; it includes a primary guide rail slider, a servo synchronous belt assembly and a secondary guide rail slider; it also includes a primary base plate, a secondary base plate, a fixed assembly, a sliding assembly and a mounting arm, the secondary base plate is slidably mounted on the primary base plate through the primary guide rail slider, the fixed assembly is mounted on the primary base plate, the servo synchronous belt assembly is mounted on the secondary base plate, a synchronous belt is provided on the servo synchronous belt assembly, the upper end of the fixed assembly is connected to the lower part of the synchronous belt, the mounting arm is slidably mounted on the secondary base plate through the secondary guide rail slider, the secondary guide rail slider is parallel to the synchronous belt, the outer end of the mounting arm is installed with a functional mechanism for accessory delivery, one end of the sliding assembly is connected to the inner end of the mounting arm, and the other end of the sliding assembly is connected to the upper part of the synchronous belt.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, in particular to a synchronous belt type multi-range mechanism. Background Art

[0002] In the packaging industry, the packing station often takes into account the process of putting some accessories into the box. Packing accessories include one or more types of certificates, paper pads or instructions. In the packing process, the bottom paper pad, packaging products (multi-layer products may have middle paper pads or vertical partitions), certificates (instructions), top paper pads, etc. are put in one by one through the accessory delivery equipment according to the process. In some cases, the top paper pad is put in first, and the certificate (instructions) is put into the box later. In traditional packaging equipment, most of the accessory delivery process is decomposed into multiple steps, but this equipment will take up a lot of space; a small number of accessories are concentrated in the same station. The packing equipment and the accessory delivery equipment must be designed to avoid each other so that the accessory delivery equipment completely avoids the packing equipment, otherwise it will affect the overall volume and function of the station equipment.

[0003] The accessory delivery device includes a telescopic structure and a functional mechanism. The telescopic structure drives the functional mechanism to move and avoid the packing equipment, allowing the functional mechanism to extend to the packaging box opening and drop the accessories into the box. Existing telescopic structures generally have a dual-powered structure, where one power source extends and moves the other power source and the functional mechanism to avoid the packaging equipment at the workstation; the other power source retracts and moves the functional mechanism to the packaging box opening. However, this telescopic structure significantly increases the space occupied and the cost of use, making it impractical and in need of improvement. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a synchronous belt-type double-stroke mechanism that adopts a single power to achieve double-stroke extension and retraction of a three-stage structure, completes material delivery, saves space and cost, and has good practicality.

[0005] The cam is mounted on a platform, and the cam is mounted on a platform that is adapted to move the gears of the driver and the user, and the cam is mounted on a platform that is adapted to move the gears of the driver and the user, and the cam is mounted on a platform that is adapted to move the gears of the driver and the user, and the cam is mounted on a platform that is adapted to move the gears of the driver and the user, and the cam is mounted on a platform that is adapted to move the gears of the driver and the user, The structure is installed on the outer end of the mounting arm, and the servo synchronous belt assembly drives the synchronous belt to rotate. Since the fixing assembly fixes the lower part of the synchronous belt, the servo synchronous belt assembly drives the secondary base plate to slide along the primary guide rail slider on the primary base plate. At the same time, the upper part of the synchronous belt drives the mounting arm to slide along the secondary guide rail slider on the secondary base plate at the same time through the sliding assembly, and the displacement of the sliding assembly is the superposition of its own displacement and the displacement of the secondary base plate. When the servo synchronous belt assembly drives the synchronous belt input displacement to be A, the secondary base plate displacement is A, and the sliding assembly displacement is A+A=2A, which doubles the stroke. Compared with the traditional delivery telescopic structure, the overall structure is a three-level structure, which is connected by two sets of guide rail sliders to realize the guidance and movement of the functional mechanism. It is precisely positioned by the servo synchronous belt assembly, which not only drives the servo synchronous belt assembly itself and the secondary base plate to move, but also superimposes on the movement of the mounting arm and the functional mechanism. Single power realizes structural expansion and contraction, completes material delivery, saves space and cost, and has good practicality.

[0006] Preferably, the servo synchronous belt assembly includes a vertical plate, a driven synchronous wheel, an active synchronous wheel, a reducer and a servo motor. The vertical plate is mounted on the secondary bottom plate, and the vertical plate is parallel to the primary guide rail slider and the secondary guide rail slider. The driven synchronous wheel and the active synchronous wheel are rotatably mounted on the two ends of the side wall of the vertical plate respectively. The driven synchronous wheel and the active synchronous wheel are on the same horizontal plane. The synchronous belt is sleeved on the driven synchronous wheel and the active synchronous wheel. The reducer is mounted on the other side wall of the vertical plate. The output shaft of the reducer is connected to the active synchronous wheel. The servo motor is mounted on the reducer. The output shaft of the servo motor is connected to the input shaft of the reducer. The lower part of the synchronous belt is fixed The components are connected, and the upper part of the synchronous belt is connected to the sliding component; the driven synchronous wheel and the active synchronous wheel rotate to support the synchronous belt, the output shaft of the servo motor drives the reducer to run, the output shaft of the reducer drives the active synchronous wheel to rotate, and the active synchronous wheel drives the synchronous belt to rotate. The lower part of the synchronous belt drives the driven synchronous wheel, the active synchronous wheel and the vertical plate to move in the opposite direction under the fixing action of the fixed component. At the same time, the upper part of the synchronous belt drives the sliding component to move, and makes the moving directions of the vertical plate and the sliding component the same, thereby doubling the stroke. By using the servo motor and the reducer, the displacement of the synchronous belt can be accurately positioned, thereby accurately controlling the functional mechanism to accurately deliver accessories.

[0007] Preferably, it also includes an adjustment groove, an adjustment groove is set on one end of the vertical plate, and the shaft of the driven synchronous wheel is installed in the adjustment groove; the driven synchronous wheel is moved in the adjustment groove to adjust the distance between the driven synchronous wheel and the active synchronous wheel, thereby adjusting the tension of the synchronous belt and facilitating the disassembly and assembly of the synchronous belt.

[0008] Preferably, the fixing assembly includes a fixing plate, a lower connecting plate and a lower pressure plate, the fixing plate is installed on the primary base plate, the upper end of the fixing plate extends above the secondary base plate, one end of the lower connecting plate is installed on the top of the fixing plate, the other end of the lower connecting plate is supported on the lower end surface of the lower part of the synchronous belt, and the lower pressure plate clamps the lower part of the synchronous belt on the lower connecting plate through multiple bolts; the fixing plate, the lower connecting plate and the lower pressure plate connect the primary base plate and the synchronous belt transmission, and the cooperation of the lower connecting plate and the lower pressure plate facilitates clamping and loosening of the lower part of the synchronous belt, thereby adjusting the initial position of the secondary base plate, which is easy to operate and practical.

[0009] Preferably, it also includes a long slot. A long slot is provided in the middle of the secondary base plate. The long slot is parallel to the slide rail of the secondary guide rail slider. The long slot avoids the fixed plate. The length of the long slot limits the stroke of the secondary base plate. By setting the long slot to avoid and limit the fixed plate, the length of the long slot limits the stroke of the secondary base plate, thereby preventing the slider and slide rail of the primary guide rail slider from falling out, and the practicality is good.

[0010] Preferably, the sliding assembly includes an upper connecting arm and an upper pressure plate, one end of the upper connecting arm is connected to the mounting arm by a bolt, and the other end of the upper connecting arm is pressed on the upper end surface of the upper part of the synchronous belt, and the upper pressure plate clamps the upper part of the synchronous belt on the upper connecting arm through multiple bolts; the upper connecting arm and the upper pressure plate drive the mounting arm and the synchronous belt, and the cooperation between the upper connecting arm and the upper pressure plate facilitates the clamping and loosening of the upper part of the synchronous belt, thereby adjusting the initial position of the mounting arm, which is easy to operate and has good practicality.

[0011] Preferably, it also includes teeth, and synchronous teeth are provided on the inner side walls of the synchronous belt, and teeth are provided on the lower end surface of the lower pressure plate and the upper end surface of the upper pressure plate, and the teeth match the synchronous teeth; by providing teeth on the lower pressure plate and the upper pressure plate, it is beneficial to improve the displacement positioning accuracy of the synchronous belt, and at the same time, the stability of the lower connecting plate and the lower pressure plate clamping the synchronous belt is higher than the stability of the upper connecting arm and the upper pressure plate clamping the synchronous belt.

[0012] Preferably, it also includes a limit plate, which is installed on the secondary base plate. The limit plate is located at the end of the slide rail of the secondary guide rail slider away from the mounting arm, and the limit plate limits the slider of the secondary guide rail slider; the slider of the secondary guide rail slider is limited by the limit plate, and then the mounting arm is limited to prevent the slider from falling off the slide rail, thereby improving safety.

[0013] Preferably, it also includes multiple oiling nozzles, and oiling nozzles are provided on the sliders of the primary guide rail slider and the secondary guide rail slider, and lubricating oil is added to the sliders through the multiple oiling nozzles; by providing the oiling nozzles, it is convenient to add lubricating oil to the sliders, thereby improving the sliding smoothness of the sliders and slide rails of the primary guide rail slider and the secondary guide rail slider.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: when working, the functional mechanism of a suitable delivery accessory is installed on the outer end of the mounting arm, and the servo synchronous belt assembly drives the synchronous belt to rotate. Since the fixing assembly fixes the lower part of the synchronous belt, the servo synchronous belt assembly drives the secondary base plate to slide along the primary guide rail slider on the primary base plate. At the same time, the upper part of the synchronous belt drives the mounting arm to slide simultaneously along the secondary guide rail slider on the secondary base plate through the sliding assembly, and the displacement of the sliding assembly is the superposition of its own displacement and the displacement of the secondary base plate. When the servo synchronous belt assembly drives the synchronous belt input displacement A, the secondary base plate displacement is A, and the sliding assembly displacement is A+A=2A, thereby doubling the stroke. Compared with the traditional delivery telescopic structure, the overall structure is a three-level structure, and the three-level structure is connected by two sets of guide rail sliders to realize the guidance and movement of the functional mechanism. The servo synchronous belt assembly is precisely positioned, which not only drives the servo synchronous belt assembly itself and the secondary base plate to move, but also superimposes on the movement of the mounting arm and the functional mechanism. Single power realizes structural telescopic expansion and completes material delivery, saving space and cost, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic structural diagram of the present invention in an elongated state;

[0017] Figure 3 It is a schematic structural diagram of the present invention in a contracted state;

[0018] Figure 4 is an axonometric structural diagram of the present invention in a contracted state;

[0019] Figure 5 It is a structural diagram of the first-level base plate, first-level guide rail slider and fixed components;

[0020] Figure 6 It is a schematic diagram of the exploded structure of the secondary base plate, servo timing belt assembly, fixed assembly, secondary guide rail slider and sliding assembly;

[0021] Figure 7 It is a schematic diagram of the structure of the sliding assembly and the mounting arm;

[0022] Markings in the accompanying drawings: 1. Primary base plate; 2. Primary guide rail slider; 3. Secondary base plate; 4. Servo synchronous belt assembly; 5. Fixed assembly; 6. Secondary guide rail slider; 7. Sliding assembly; 8. Synchronous belt; 9. Vertical plate; 10. Driven synchronous wheel; 11. Active synchronous wheel; 12. Reducer; 13. Servo motor; 14. Fixed plate; 15. Lower connecting plate; 16. Lower pressure plate; 17. Mounting arm; 18. Upper connecting arm; 19. Upper pressure plate; 20. Adjustment groove; 21. Tooth pattern; 22. Limit plate; 23. Oil nozzle; 24. Long notch. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present invention, the present invention will be described clearly, completely, and accurately below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided for the purpose of providing a more comprehensive disclosure of the present invention.

[0024] Example 1

[0025] like Figures 1 to 4As shown, a synchronous belt type double-stroke mechanism, the present invention is mainly developed for the delivery of packing accessories in the packaging industry, such as delivery of certificate of conformity, paper padding, etc., and is used in workstations that need to pack and deliver accessories (certificates of conformity, partitions, etc.), without affecting the continuous delivery process of the front and rear materials. It includes a primary guide rail slider 2, a servo synchronous belt assembly 4 and a secondary guide rail slider 6. The primary guide rail slider 2 and the secondary guide rail slider 6 both include slide rails and multiple sliders slidably mounted on the slide rails; it also includes a primary bottom plate 1, a secondary bottom plate 3, a fixed assembly 5, a sliding assembly 7 and a mounting arm 17. The primary bottom plate 1 is installed in the packing On the equipment, the secondary base plate 3 is slidably installed on the primary base plate 1 through the primary guide rail slider 2, the fixed component 5 is installed on the primary base plate 1, the servo synchronous belt component 4 is installed on the secondary base plate 3, and the servo synchronous belt component 4 is provided with a synchronous belt 8, which is parallel to the primary guide rail slider 2. The upper end of the fixed component 5 is connected to the lower part of the synchronous belt 8, and the mounting arm 17 is slidably installed on the secondary base plate 3 through the secondary guide rail slider 6. The secondary guide rail slider 6 is parallel to the synchronous belt 8. The outer end of the mounting arm 17 is installed with a functional mechanism for accessory delivery, and one end of the sliding component 7 is connected to the inner end of the mounting arm 17. The other end of the sliding assembly 7 is connected to the upper part of the synchronous belt 8; the servo synchronous belt assembly 4 includes a vertical plate 9, a driven synchronous wheel 10, an active synchronous wheel 11, a reducer 12 and a servo motor 13. The vertical plate 9 is mounted on the secondary base plate 3. The vertical plate 9 is parallel to the primary guide rail slider 2 and the secondary guide rail slider 6. The driven synchronous wheel 10 and the active synchronous wheel 11 are rotatably mounted on the two ends of the side wall of the vertical plate 9 respectively. The driven synchronous wheel 10 and the active synchronous wheel 11 are on the same horizontal plane. The synchronous belt 8 is mounted on the driven synchronous wheel 10 and the active synchronous wheel 11. The reducer 12 is mounted on the other side wall of the vertical plate 9. The output shaft of the reducer 12 is connected to the active synchronous wheel 11, the servo motor 13 is installed on the reducer 12, the output shaft of the servo motor 13 is connected to the input shaft of the reducer 12, the lower part of the synchronous belt 8 is connected to the fixed component 5, and the upper part of the synchronous belt 8 is connected to the sliding component 7; it also includes an adjustment groove 20, an adjustment groove 20 is set on one end of the vertical plate 9, and the shaft of the driven synchronous wheel 10 is installed in the adjustment groove 20; it also includes a plurality of oiling nozzles 23, and oiling nozzles 23 are set on the sliders of the primary guide rail slider 2 and the secondary guide rail slider 6, and lubricating oil is added to the sliders through the multiple oiling nozzles 23.

[0026] The driven synchronous wheel 10 and the active synchronous wheel 11 rotate and support the synchronous belt 8, and move the driven synchronous wheel 10 in the adjustment groove 20, so as to adjust the distance between the driven synchronous wheel 10 and the active synchronous wheel 11, thereby adjusting the tension of the synchronous belt 8, and facilitating the disassembly and assembly of the synchronous belt 8. By setting the oiling nozzle 23, it is convenient to add lubricating oil to the slider, thereby improving the sliding smoothness of the sliders and slide rails of the primary guide rail slider 2 and the secondary guide rail slider 6. When working, the functional mechanism of the appropriate delivery accessory is installed on the outer end of the mounting arm 17, and the output shaft of the servo motor 13 drives the reducer 12 to operate, and the output shaft of the reducer 12 drives the active synchronous wheel 11 to rotate, and the active synchronous wheel 11 drives the synchronous belt 8 to rotate. The lower part of the synchronous belt 8 drives the driven synchronous wheel 10, the active synchronous wheel 11 and the vertical plate 9 to move in the opposite direction under the fixing action of the fixing component 5, so that the vertical plate 9 drives the secondary base plate 3 to slide along the primary guide rail slider 2 on the primary base plate 1, and at the same time, the upper part of the synchronous belt 8 passes through the upper connecting arm 18 and The upper pressure plate 19 drives the mounting arm 17 to slide simultaneously on the secondary base plate 3 along the secondary guide rail slider 6, and makes the movement direction of the vertical plate 9 and the sliding assembly 7 the same. The displacement of the mounting arm 17 is the superposition of its own displacement and the displacement of the secondary base plate 3. When the servo motor 13 and the reducer 12 drive the synchronous belt 8 through the active synchronous wheel 11 to input a displacement A, the secondary base plate 3 is displaced A, and the mounting arm 17 displacement is A+A=2A, which doubles the stroke. Compared with the traditional telescopic structure, the overall structure is a three-level structure. The three-level structure is connected by two sets of guide rail sliders to realize the guidance and movement of the functional mechanism. It is precisely positioned by the servo synchronous belt assembly 4, which not only drives the servo synchronous belt assembly 4 itself and the secondary base plate 3 to move, but also superimposes on the movement of the mounting arm 17 and the functional mechanism. Single power realizes structural telescopic, completes material delivery, saves space and cost, and uses the servo motor 13 and the reducer 12 to accurately locate the displacement of the synchronous belt 8, thereby accurately controlling the functional mechanism to accurately deliver accessories.

[0027] Example 2

[0028] like Figures 5 to 7As shown, a synchronous belt type multi-stroke mechanism includes a primary guide rail slider 2, a servo synchronous belt assembly 4 and a secondary guide rail slider 6. The primary guide rail slider 2 and the secondary guide rail slider 6 each include a slide rail and a plurality of slides slidably mounted on the slide rail; further comprising a primary base plate 1, a secondary base plate 3, a fixed assembly 5, a sliding assembly 7 and a mounting arm 17. The primary base plate 1 is mounted on the packaging equipment, the secondary base plate 3 is slidably mounted on the primary base plate 1 through the primary guide rail slider 2, the fixed assembly 5 is mounted on the primary base plate 1, the servo synchronous belt assembly 4 is mounted on the secondary base plate 3, and a synchronous belt assembly 4 is provided on the servo synchronous belt assembly 4. Belt 8, the synchronous belt 8 is parallel to the primary guide rail slider 2, the upper end of the fixed component 5 is connected to the lower part of the synchronous belt 8, the mounting arm 17 is slidably mounted on the secondary base plate 3 through the secondary guide rail slider 6, the secondary guide rail slider 6 is parallel to the synchronous belt 8, the outer end of the mounting arm 17 is installed with a functional mechanism for accessory delivery, one end of the sliding component 7 is connected to the inner end of the mounting arm 17, and the other end of the sliding component 7 is connected to the upper part of the synchronous belt 8; the fixed component 5 includes a fixed plate 14, a lower connecting plate 15 and a lower pressing plate 16, the fixed plate 14 is mounted on the primary base plate 1, and the upper end of the fixed plate 14 extends out of the secondary base plate 3 Above, one end of the lower connecting plate 15 is mounted on the top of the fixed plate 14, and the other end of the lower connecting plate 15 is supported on the lower end surface of the lower part of the synchronous belt 8, and the lower pressure plate 16 clamps the lower part of the synchronous belt 8 on the lower connecting plate 15 through a plurality of bolts; it also includes a long notch 24, a long notch 24 is provided in the middle of the secondary bottom plate 3, the long notch 24 is parallel to the slide rail of the secondary guide rail slider 6, the long notch 24 avoids the fixed plate 14, and the length of the long notch 24 limits the stroke of the secondary bottom plate 3; the sliding assembly 7 includes an upper connecting arm 18 and an upper pressure plate 19, one end of the upper connecting arm 18 is connected to the mounting arm 17 through Bolt connection, the other end of the upper connecting arm 18 is pressed on the upper end surface of the upper part of the synchronous belt 8, and the upper pressure plate 19 clamps the upper part of the synchronous belt 8 on the upper connecting arm 18 through multiple bolts; it also includes teeth 21, and synchronous teeth are provided on the inner side wall of the synchronous belt 8. The lower end surface of the lower pressure plate 16 and the upper end surface of the upper pressure plate 19 are both provided with teeth 21, and the teeth 21 match the synchronous teeth; it also includes a limit plate 22, the limit plate 22 is installed on the secondary base plate 3, the limit plate 22 is located at the end of the slide rail of the secondary guide rail slider 6 away from the mounting arm 17, and the limit plate 22 limits the slider of the secondary guide rail slider 6.

[0029] The fixing plate 14, the lower connecting plate 15 and the lower pressing plate 16 drive the connection between the primary base plate 1 and the synchronous belt 8. The cooperation between the lower connecting plate 15 and the lower pressing plate 16 facilitates the clamping and loosening of the lower portion of the synchronous belt 8, thereby adjusting the initial position of the secondary base plate 3. The fixing plate 14 is avoided and limited by setting a long notch 24. The length of the long notch 24 limits the stroke of the secondary base plate 3 to prevent the slider and the slide rail of the primary guide rail slider 2 from being separated. The upper connecting arm 18 and the upper pressing plate 19 drive the connection between the mounting arm 17 and the synchronous belt 8. The cooperation between 18 and the upper pressure plate 19 facilitates the clamping and loosening of the upper part of the synchronous belt 8, thereby adjusting the initial position of the mounting arm 17. By providing the tooth pattern 21 on the lower pressure plate 16 and the upper pressure plate 19, it is beneficial to improve the displacement positioning accuracy of the synchronous belt 8. At the same time, the stability of the lower connecting plate 15 and the lower pressure plate 16 clamping the synchronous belt 8 is higher than the stability of the upper connecting arm 18 and the upper pressure plate 19 clamping the synchronous belt 8. The slider of the secondary guide rail slider 6 is limited by the limit plate 22, and then the mounting arm 17 is limited to prevent the slider from falling off the slide rail.

[0030] like Figures 1 to 7 As shown, a synchronous belt type multi-range mechanism of the present invention, when working, first installs the functional mechanism of the appropriate delivery attachment to the outer end of the mounting arm 17, the output shaft of the servo motor 13 drives the reducer 12 to operate, the output shaft of the reducer 12 drives the active synchronous wheel 11 to rotate, the active synchronous wheel 11 drives the synchronous belt 8 to rotate, the lower part of the synchronous belt 8 drives the driven synchronous wheel 10, the active synchronous wheel 11 and the vertical plate 9 to move in the opposite direction under the fixing action of the fixing plate 14, the lower connecting plate 15 and the lower pressure plate 16, and at the same time the upper part of the synchronous belt 8 drives The upper connecting arm 18, the upper pressure plate 19 and the mounting arm 17 move, and the movement directions of the vertical plate 9 and the mounting arm 17 are the same, so that the secondary base plate 3 slides on the primary base plate 1 along the primary guide rail slider 2, and the mounting arm 17 slides on the secondary base plate 3 along the secondary guide rail slider 6 at the same time, and the displacement of the mounting arm 17 is the superposition of its own displacement and the displacement of the secondary base plate 3. When the servo synchronous belt assembly 4 drives the synchronous belt 8 to input a displacement of A, the displacement of the secondary base plate 3 is A, and the displacement of the sliding assembly 7 is A+A=2A, thereby doubling the stroke.

[0031] The main functions achieved by the present invention are:

[0032] 1. The overall structure is three-level, and two sets of guide rail sliders are used to connect the three-level structure to achieve the guidance and movement of the functional mechanism;

[0033] 2. The servo motor 13 is precisely positioned, which not only drives the servo timing belt assembly 4 itself and the secondary base plate 3 to move, but also superimposes the installation arm 17 and the functional mechanism to move;

[0034] 3. Use single power to realize structural expansion and contraction, avoid packing equipment and complete material delivery.

[0035] Save space and cost.

[0036] The installation method, connection method or setting method of a synchronous belt type multi-range mechanism of the present invention are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects; the primary guide rail slider 2, secondary guide rail slider 6, servo synchronous belt assembly 4, synchronous belt 8, driven synchronous wheel 10, active synchronous wheel 11, reducer 12, servo motor 13, and oiling nozzle 23 of a synchronous belt type multi-range mechanism of the present invention are purchased on the market, and technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in this field to pay creative labor.

[0037] All technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention pertains. The terms used in the present specification are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A synchronous belt type multi-range mechanism, comprising a primary guide rail slider (2), a servo synchronous belt assembly (4) and a secondary guide rail slider (6), wherein the primary guide rail slider (2) and the secondary guide rail slider (6) both comprise a slide rail and a plurality of sliders slidably mounted on the slide rail; characterized in that: The utility model also includes a first-level base plate (1), a second-level base plate (3), a fixed component (5), a sliding component (7) and a mounting arm (17), wherein the first-level base plate (1) is mounted on the packing equipment, the second-level base plate (3) is slidably mounted on the first-level base plate (1) through the first-level guide rail slider (2), the fixed component (5) is mounted on the first-level base plate (1), the servo synchronous belt component (4) is mounted on the second-level base plate (3), a synchronous belt (8) is provided on the servo synchronous belt component (4), the synchronous belt (8) is parallel to the first-level guide rail slider (2), the upper end of the fixed component (5) is connected to the lower part of the synchronous belt (8), the mounting arm (17) is slidably mounted on the second-level base plate (3) through the second-level guide rail slider (6), the second-level guide rail slider (6) is parallel to the synchronous belt (8), the outer end of the mounting arm (17) is mounted with a functional mechanism for attaching accessories, one end of the sliding component (7) is connected to the inner end of the mounting arm (17), and the other end of the sliding component (7) is connected to the upper part of the synchronous belt (8); The servo synchronous belt assembly (4) includes a vertical plate (9), a driven synchronous wheel (10), a driving synchronous wheel (11), a speed reducer (12) and a servo motor (13). The vertical plate (9) is mounted on the secondary bottom plate (3). The vertical plate (9) is parallel to the primary guide rail slider (2) and the secondary guide rail slider (6). The driven synchronous wheel (10) and the driving synchronous wheel (11) are rotatably mounted on both ends of the side wall of the vertical plate (9). The driven synchronous wheel (10) and the driving synchronous wheel (11) are on the same horizontal plane. The synchronous belt (8) is mounted on the driven synchronous wheel (10) and the active synchronous wheel (11), the reducer (12) is mounted on the other side wall of the vertical plate (9), the output shaft of the reducer (12) is connected to the active synchronous wheel (11), the servo motor (13) is mounted on the reducer (12), the output shaft of the servo motor (13) is connected to the input shaft of the reducer (12), the lower part of the synchronous belt (8) is connected to the fixed component (5), and the upper part of the synchronous belt (8) is connected to the sliding component (7); The fixing assembly (5) includes a fixing plate (14), a lower connecting plate (15) and a lower pressing plate (16), wherein the fixing plate (14) is mounted on the primary bottom plate (1), the upper end of the fixing plate (14) extends above the secondary bottom plate (3), one end of the lower connecting plate (15) is mounted on the top end of the fixing plate (14), the other end of the lower connecting plate (15) is supported on the lower end surface of the lower portion of the synchronous belt (8), and the lower pressing plate (16) clamps the lower portion of the synchronous belt (8) on the lower connecting plate (15) through a plurality of bolts; It also includes a long notch (24), the middle part of the secondary bottom plate (3) is provided with the long notch (24), the long notch (24) is parallel to the slide rail of the secondary guide rail slider (6), the long notch (24) avoids the fixed plate (14), and the length of the long notch (24) limits the travel of the secondary bottom plate (3); The sliding assembly (7) includes an upper connecting arm (18) and an upper pressure plate (19), one end of the upper connecting arm (18) is connected to the mounting arm (17) by a bolt, the other end of the upper connecting arm (18) is pressed on the upper end surface of the upper part of the synchronous belt (8), and the upper pressure plate (19) clamps the upper part of the synchronous belt (8) on the upper connecting arm (18) by a plurality of bolts.

2. A synchronous belt type multi-range mechanism according to claim 1, characterized in that: It also includes an adjustment groove (20), wherein the adjustment groove (20) is provided on one end of the vertical plate (9), and the shaft of the driven synchronous wheel (10) is installed in the adjustment groove (20).

3. A synchronous belt type multi-range mechanism according to claim 1, characterized in that: It also includes tooth patterns (21), the inner side walls of the synchronous belt (8) are provided with synchronous teeth, the lower end surface of the lower pressing plate (16) and the upper end surface of the upper pressing plate (19) are provided with tooth patterns (21), and the tooth patterns (21) match the synchronous teeth.

4. A synchronous belt type multi-range mechanism according to claim 1, characterized in that: It also includes a limit plate (22), which is installed on the secondary bottom plate (3). The limit plate (22) is located at the end of the slide rail of the secondary guide rail slider (6) away from the installation arm (17), and the limit plate (22) limits the slider of the secondary guide rail slider (6).

5. The synchronous belt type multi-range mechanism according to claim 1, characterized in that: It also includes a plurality of oiling nozzles (23), and the slide blocks of the primary guide rail slide block (2) and the secondary guide rail slide block (6) are both provided with oiling nozzles (23), and lubricating oil is added to the slide blocks through the plurality of oiling nozzles (23).

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