Full-automatic cap screwing mechanism

Abstract

The utility model discloses a full-automatic cap screwing mechanism which comprises a cap screwing support and a fixing base, a rotary driving assembly is installed on the fixing base, a sleeve shaft assembly and a clamping jaw assembly are sequentially arranged at the lower end of the rotary driving assembly, a rotary main sleeve is arranged outside the sleeve shaft assembly, and a clamping driving assembly is installed on the rotary main sleeve. The rotating main sleeve is rotationally installed outside the sleeve shaft assembly, the clamping jaw assembly comprises a clamping jaw base and a plurality of jaw strips evenly hinged to the peripheral face of the clamping jaw base, the upper ends of the jaw strips are movably connected with the sleeve shaft assembly, and the lower ends of the jaw strips extend out of the rotating main sleeve. The rotating driving assembly and the clamping driving assembly are respectively connected with the clamping jaw assembly through the sleeve shaft assembly, rotating and clamping actions of the clamping jaw assembly are achieved, so that cap screwing and cap unloading actions are achieved, the clamping jaw assembly enables a plurality of jaw strips to gather towards the middle and extend outwards through lifting of a lifting shaft, and therefore a barrel cover is fixed. The cap screwing device is simple in overall structure, not limited by the material of the barrel cover and high in cap screwing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic capping, in particular to a full-automatic capping mechanism. Background Art

[0002] At present, the production of packaging lines is becoming more and more automated, which can save labor and improve efficiency. For bottle caps with convex structures, automatic capping mechanisms in the form of grippers or vacuum are usually used, such as the Chinese utility model with authorization announcement number CN 211847087 U. However, for some barrel caps with concave structures, the gripper form is not applicable, and the vacuum form can only be applied to barrel caps with smaller sizes. For some large barrels, due to the large overall volume of the barrel caps and insufficient vacuum suction, some automatic lines use capping machines in the form of embedded magnets. Capping machines with this structure not only have a large workload, but also have low efficiency, cannot keep up with the speed of the automatic production line, and are limited in application scenarios. They can only be applied to the capping operations of some iron barrel caps. Utility Model Content

[0003] The utility model aims to solve the shortcomings of the prior art and proposes a fully automatic capping mechanism which is not restricted by the material of the barrel cover, has a simple structure and high capping efficiency.

[0004] The technical solution to achieve the purpose of this utility model is:

[0005] The cam is an assembly made of a plurality of teeth, the teeth of the cam being arranged on a pair of camshafts, the teeth of the cam being arranged on a pair of camshafts, the teeth of the cam being arranged on a pair of camshafts, the teeth of the cam being arranged on a pair of camshafts, the teeth of the cam being arranged on a pair of camshafts, the teeth of the cam being arranged on a pair of camshafts, the teeth of the cam being arranged on a pair of camshafts, the teeth of the cam being arranged on a pair of camshafts

[0006] Furthermore, the rotary drive assembly includes a motor and a universal joint fixedly connected to an output shaft of the motor, and the other end of the universal joint is fixedly connected to the first shaft sleeve.

[0007] Furthermore, a plurality of tension springs are connected to the bottom of the fixed seat, the other end of the tension springs is connected to the main seat, a plurality of floating guide rods are connected between the main seat and the fixed seat, and the universal joint limiter is arranged in the main seat.

[0008] Furthermore, a reinforcement plate is fixedly connected between adjacent guide rods.

[0009] Furthermore, the outer sleeve of the rotating main sleeve is provided with a movable sleeve, the bottom of the movable sleeve is fixedly connected with a copper sleeve, the top is provided with a compression spring and a distance rod, the rotating main sleeve and the main seat are aligned with through holes, the lower end of the distance rod is tightened on the movable sleeve, the upper end gap passes through the through hole and the limiting plate is tightened.

[0010] Furthermore, an annular boss is provided on the top outer circumference of the copper sleeve, an L-shaped plate is symmetrically provided on the outer circumference of the movable sleeve, the bottom of the L-shaped plate extends to the bottom of the annular boss and is provided with an adjusting bolt, and the other end of the adjusting bolt abuts against the copper sleeve.

[0011] Furthermore, a first cylinder is fixedly installed on the top of the screw cap bracket, a piston rod of the first cylinder is vertically arranged downward and connected to a fixed seat, a linear guide is fixedly installed on the side of the screw cap bracket, and the fixed seat is fixedly connected to a sliding block of the linear guide.

[0012] Furthermore, the clamping drive assembly includes a second cylinder symmetrically fixedly mounted on the rotating main sleeve, a piston rod of the second cylinder is vertically arranged downward and fixedly connected to a movable seat, and a bearing assembly is connected between the movable seat and the second sleeve.

[0013] Furthermore, a waist-shaped through groove is provided on the outer circumference of the rotating main sleeve, photoelectric detection switches are symmetrically installed on both sides of the waist-shaped through groove, and a sensing block is fixedly installed on the movable seat, which passes through the waist-shaped through groove and extends between the two photoelectric detection switches.

[0014] Furthermore, the claw bar includes a first extension section, a second extension section, a third extension section and a fourth extension section which are connected in sequence, the second extension section is vertically arranged and hinged to the clamping claw seat, the first extension section is horizontally arranged and has a waist-shaped hole, a pin shaft passing through the waist-shaped hole is fixed on the lifting shaft, and the third extension section and the fourth extension section are respectively arranged to be inclined downward in the same direction and opposite direction to the first extension section.

[0015] By adopting the above technical solution, the utility model has the following beneficial effects:

[0016] (1) The utility model connects the rotating drive assembly and the clamping drive assembly to the clamping claw assembly respectively by setting a sleeve shaft assembly, thereby realizing the rotation and clamping action of the clamping claw assembly, thereby realizing the screwing and removing action of the cover. The clamping claw assembly adopts a plurality of claw bars hinged on the clamping claw seat. The plurality of claw bars gather toward the middle and stretch outward through the lifting and lowering of the lifting shaft. When stretched, they abut against the inner wall of the barrel cover with the concave structure, thereby fixing the barrel cover. Otherwise, they are separated from the barrel cover. The overall structure is simple, not limited by the barrel cover material, and the screwing efficiency is high.

[0017] (2) The utility model connects the motor and the first shaft sleeve through a universal joint, thereby realizing floating installation of the rotating main sleeve and the clamping claw assembly. It can automatically compensate for barrels of different heights and barrel mouth deviations, and is suitable for barrel covers of more specifications.

[0018] (3) The utility model can achieve floating and limit the universal joint to a certain extent by arranging the tension spring, the guide rod and the fixed seat, thereby preventing the rotating main sleeve and the clamping claw assembly from floating too much.

[0019] (4) The utility model connects a plurality of guide rods into a whole by providing a reinforcing plate, thereby ensuring that the plurality of guide rods are parallel to each other and move synchronously, thereby avoiding interference with the lifting movement of the lifting shaft.

[0020] (5) The utility model provides a movable sleeve and a copper sleeve, so that the barrel cover can be covered in advance before the clamping claw assembly fixes the barrel cover, thereby achieving preliminary positioning of the barrel cover and further improving the positioning accuracy of the screw cover. By providing a compression spring and a distance rod, the height of the copper sleeve can be easily adjusted to adapt to barrel covers of different heights.

[0021] (6) The utility model realizes the assembly of the copper sleeve and the movable sleeve by the cooperation of the L-shaped plate and the annular boss, and realizes rapid locking and fixing by adjusting the bolt, so as to facilitate the rapid replacement of different copper sleeves and meet the use of barrel covers of different specifications.

[0022] (7) The utility model drives the fixed seat to move up and down by extending and retracting the first cylinder, has a simple structure and is easy to control. By setting a linear guide rail, the stability of the lifting movement is ensured.

[0023] (8) The clamping drive assembly of the utility model realizes the rotational connection between the movable seat and the second sleeve through the bearing assembly, and drives the second sleeve to rise and fall through the extension and retraction of the second cylinder, thereby realizing the lifting and lowering of the lifting shaft, and at the same time will not cause the second cylinder to rotate.

[0024] (9) The utility model detects the relative change distance between the movable seat and the rotating main sleeve by setting a photoelectric detection switch and a sensing block that cooperate with each other, thereby detecting whether the cover removal and cover rotation are completed.

[0025] (10) The claw bar of the utility model adopts a special structure. A waist-shaped hole is set on the first extension section, and the movable connection between the claw bar and the lifting shaft is realized through the cooperation of the waist-shaped hole and the pin shaft. When the lifting shaft descends, the fourth extension section of the claw bar is driven to expand outward, thereby clamping the inner wall of the barrel cover to fix the barrel cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein:

[0027] Figure 1 It is a three-dimensional diagram of the utility model;

[0028] Figure 2 It is a cross-sectional view of the utility model;

[0029] Figure 3 It is a partial enlarged view of the utility model;

[0030] Figure 4 It is a schematic diagram of the claw strip structure of the utility model.

[0031] The reference numerals in the accompanying drawings are:

[0032] Screw cap bracket 1, fixed seat 2, rotation drive assembly 3, motor 3-1, universal joint 3-2, sleeve shaft assembly 4, first sleeve 4-1, second sleeve 4-2, third sleeve 4-3, lifting shaft 4-4, clamping claw assembly 5, clamping claw seat 5-1, claw bar 5-2, first extension section 5-2-1, second extension section 5-2-2, third extension section 5-2-3, fourth extension section 5-2-4, rotating main sleeve 6, clamping drive assembly 7, second cylinder 7-1, movable seat 7-2, first cylinder 8, linear guide 9, main seat 10, guide rod 11, reinforcement plate 12, movable sleeve 13, L-shaped plate 13-1, copper sleeve 14, annular boss 14-1, compression spring 15, distance rod 16, limit plate 17, adjusting bolt 18, photoelectric detection switch 19, induction block 20. DETAILED DESCRIPTION

[0033] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] (Example 1)

[0035] like Figures 1 to 4The fully automatic capping mechanism shown comprises a capping support 1, a fixed seat 2, a rotating drive assembly 3, a sleeve shaft assembly 4, a clamping claw assembly 5, a rotating main sleeve 6 and a clamping driving assembly 7, wherein the fixed seat 2 is mounted on the capping support 1 in a liftable manner, the rotating drive assembly 3 is mounted on the fixed seat 2, and the lower end is connected to the sleeve shaft assembly 4 and the clamping claw assembly 5 in sequence. The rotating main sleeve 6 is sleeved on the sleeve shaft assembly 4, and the clamping driving assembly 7 is mounted on the rotating main sleeve 6. The sleeve shaft assembly 4 comprises a first sleeve 4-1 fixedly connected to the output end of the rotating drive assembly 3, a second sleeve 4-2 sleeved outside the first sleeve 4-1, a third sleeve 4-3 sleeved at the lower part of the second sleeve 4-2 and fixedly connected to the first sleeve 4-1, and a lifting shaft 4-4 with a coaxial gap arranged in the first sleeve 4-1 and fixedly connected to the second sleeve 4-2, and the rotating main sleeve 6 is rotatably mounted outside the third sleeve 4-3. The clamping drive assembly 7 is installed on the rotating main sleeve 6, and the output end is connected to the second sleeve 4-2 in rotation, so that the lifting shaft 4-4 is driven to move up and down through the second sleeve 4-2. The clamping claw assembly 5 includes a clamping claw seat 5-1 fixedly connected to the third sleeve 4-3 and four claw strips 5-2 evenly hinged on the outer peripheral surface of the clamping claw seat 5-1. The upper end of each claw strip 5-2 is movably connected to the lifting shaft 4-4, and the lower end extends to the outside of the rotating main sleeve 6. The claw strips 5-2 are driven to gather toward the middle and stretch outward through the lifting shaft 4-4. When stretched, they abut against the inner wall of the barrel cover with an inner concave structure, thereby fixing the barrel cover. Otherwise, they are separated from the barrel cover, and the first sleeve 4-1 is driven to rotate through the rotating drive assembly 3, and then the clamping claw seat is driven to rotate through the third sleeve 4-3, so as to realize the rotation of the barrel cover fixed by the claw strips, and complete the action of screwing and unscrewing the cover. The overall structure is simple, not limited by the barrel cover material, and the screwing efficiency is high.

[0036] Specifically, the claw bar 5-2 includes a first extension section 5-2-1, a second extension section 5-2-2, a third extension section 5-2-3 and a fourth extension section 5-2-4 connected in sequence, the second extension section 5-2-2 is vertically arranged and hinged with the clamping claw seat 5-1, the first extension section 5-2-1 is horizontally arranged and has a waist-shaped hole, and a pin that passes through the waist-shaped hole is fixed on the lifting shaft 4-4 to realize the movable connection between the claw bar 5-2 and the lifting shaft 4-4. The third extension section 5-2-3 and the fourth extension section 5-2-4 are respectively arranged in the same direction and the opposite direction as the first extension section 5-2-1 and tilted downward. When the lifting shaft 4-4 descends, the fourth extension section 5-2-4 of the claw bar 5-2 is driven to expand outward, thereby clamping the inner wall of the barrel cover to fix the barrel cover.

[0037] The top of the screw cap bracket 1 is fixedly mounted with a first cylinder 8, and the side is fixedly mounted with a linear guide rail 9. The piston rod of the first cylinder 8 is vertically arranged downward and connected to the fixed seat 2, and the fixed seat 2 is fixedly connected to the sliding block of the linear guide rail 9. The fixed seat 2 is driven to move up and down by the extension and contraction of the first cylinder 8. The structure is simple and the control is convenient. The linear guide rail 9 is arranged to ensure the stability of the lifting movement.

[0038] The rotary drive assembly 3 includes a motor 3-1 and a universal joint 3-2 fixedly connected to the output shaft of the motor 3-1. The other end of the universal joint 3-2 is fixedly connected to the first shaft sleeve 4-1, thereby realizing the floating installation of the rotating main sleeve 6 and the clamping claw assembly 5. It can automatically compensate for barrels of different heights and barrel mouth deviations, and is suitable for barrel covers of more specifications. A group of tension springs are connected to the bottom of the fixed seat 2, four groups in total, and the other ends of the four groups of tension springs are commonly connected to the main seat 10. Four guide rods 11 are connected between the main seat 10 and the fixed seat 2. The upper end of each guide rod 11 is adapted to penetrate the fixed seat 2, and the lower end gap penetrates the main seat 10, thereby realizing the floating setting, which can not only limit the main seat 10 but also ensure that the main seat 10 has a certain floating space. The universal joint 3-2 penetrates the main seat 10 and is limitedly set in the main seat 10 to prevent the rotating main sleeve 6 and the clamping claw assembly 5 from floating too much. A reinforcing plate 12 is fixedly connected between adjacent guide rods 11 to ensure that the plurality of guide rods 11 are parallel to each other and move synchronously, thereby avoiding interference with the lifting movement of the lifting shaft.

[0039] The outer sleeve of the rotating main sleeve 6 is provided with a movable sleeve 13, the bottom of the movable sleeve 13 is fixedly connected with a copper sleeve 14, the top is provided with a compression spring 15 and a distance rod 16, the rotating main sleeve 6 and the main seat 10 are aligned with through holes, the lower end of the distance rod 16 is screwed on the movable sleeve 13, and the upper end gap passes through the through hole and tightens the limit plate 17. By setting the movable sleeve 13 and the copper sleeve 14, the barrel cover can be covered in advance before the clamping jaw assembly 5 fixes the barrel cover, the initial positioning of the barrel cover is achieved, and the positioning accuracy of the rotating cover is further improved. The copper sleeve 14 is made of copper and can play a good friction function, so that it will not generate a lot of friction when removing the cover and rotating the cover, which will affect the function. By setting the compression spring 15 and the distance rod 16, it is easy to adjust the height of the copper sleeve 14, so as to adapt to barrel covers of different heights. The top outer circumference of the copper sleeve 14 is provided with an annular boss 14-1, and the outer circumference of the movable sleeve 13 is symmetrically provided with an L-shaped plate 13-1, and the bottom of the L-shaped plate 13-1 extends to the bottom of the annular boss 14-1 and is provided with an adjusting bolt 18, and the other end of the adjusting bolt 18 abuts against the copper sleeve 14. The copper sleeve 14 and the movable sleeve 13 are assembled by the cooperation of the L-shaped plate 13-1 and the annular boss 14-1, and the adjusting bolt 18 is used to achieve rapid locking and fixing, so that different copper sleeves 14 can be quickly replaced to meet the use of barrel covers of different specifications.

[0040] The clamping drive assembly 5 includes a second cylinder 7-1 symmetrically fixedly mounted on the rotating main sleeve 6, the piston rod of the second cylinder 7-1 is vertically downwardly arranged and fixedly connected to a movable seat 7-2, and a bearing assembly is connected between the movable seat 7-2 and the second sleeve 4-2, thereby realizing a rotational connection. The second sleeve 4-2 is lifted and lowered by the extension and contraction of the second cylinder 7-1, thereby realizing the lifting and lowering of the lifting shaft 4-4, and at the same time, the second cylinder 7-1 will not be caused to rotate with it. The outer peripheral surface of the rotating main sleeve 6 is provided with a waist-shaped through groove 6-1, and photoelectric detection switches 19 are symmetrically installed on both sides of the waist-shaped through groove 6-1. A sensor block 20 that penetrates the waist-shaped through groove 6-1 and extends between the two photoelectric detection switches 19 is fixedly installed on the movable seat 7-2. By setting the photoelectric detection switch 19 and the sensor block 20 that cooperate with each other, the relative change distance between the movable seat 7-2 and the rotating main sleeve 6 is detected, and then it is detected whether the unloading and capping is completed.

[0041] In this embodiment, the rotating drive assembly 3 and the clamping drive assembly 7 are connected to the clamping assembly 5 respectively by setting the sleeve shaft assembly 4, so as to realize the rotation and clamping action of the clamping assembly 5, thereby realizing the action of screwing and unloading the cover. The clamping assembly 5 adopts a plurality of claw strips 5-2 hinged on the clamping jaw seat 5-1, and realizes the plurality of claw strips 5-2 to gather in the middle and stretch outward through the lifting and lowering of the lifting shaft 4-4. When stretching, the claw strips 5-2 abut against the inner wall of the barrel cover of the concave structure, thereby fixing the barrel cover, and vice versa, the barrel cover is separated, the overall structure is simple, not limited by the barrel cover material, and the screwing efficiency is high. In addition, the entire clamping jaw assembly 5 has a certain floating space, and can automatically compensate for barrel covers of different heights and barrel mouth deviations. The design of the tension spring can also swing well according to this deviation, so as not to misalign the cover during work. When removing or screwing the cover, the photoelectric detection switch 19 can be used to detect whether the claw strip 5-2 enters the cover. When the detection is completed, the claw strip 5-2 is extended through the second cylinder 7-1 to firmly support the inner side of the cover, and the cover is removed through the motor 3-1. After the cover is removed, the second cylinder 7-1 returns to the initial position, and the cover does not fall off the screw cap head. When screwing the cover, the claw strip 5-2 rotates in the opposite direction to screw the cover. After the cover is screwed, the claw strip 5-2 is released and the cylinder is reset.

[0042] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic capping mechanism, characterized in that: The cam is provided with a first end fixedly mounted on the support frame, and a second end fixedly mounted on the support frame can be lifted and lowered, and a rotation driving assembly is installed on the fixed seat, and a sleeve shaft assembly and a clamping jaw assembly are provided in sequence at the lower end of the sleeve shaft assembly, and a rotating main sleeve is provided outside the sleeve shaft assembly, and a clamping driving assembly is installed on the rotating main sleeve, and the sleeve shaft assembly comprises a first sleeve fixedly connected to an output end of the rotating driving assembly, a second sleeve sleeve mounted outside the first sleeve, a third sleeve sleeve mounted at the lower part of the second sleeve and fixedly connected to the first sleeve, and a lifting shaft with a coaxial gap arranged in the first sleeve and fixedly connected to the second sleeve, the rotating main sleeve is rotatably installed outside the third sleeve, and the output end of the clamping driving assembly is rotatably connected to the second sleeve, and the clamping jaw assembly comprises a clamping jaw seat fixedly connected to the third sleeve and a plurality of claw strips evenly hinged on the outer circumferential surface of the clamping jaw seat, the upper end of the claw strip is movably connected to the lifting shaft, and the lower end extends outside the rotating main sleeve.

2. The fully automatic capping mechanism according to claim 1, characterized in that: The rotary drive assembly includes a motor and a universal joint fixedly connected to the output shaft of the motor, and the other end of the universal joint is fixedly connected to the first shaft sleeve.

3. The fully automatic capping mechanism according to claim 2, characterized in that: The bottom of the fixed seat is connected to multiple groups of tension springs, the other end of the tension spring is connected to the main seat, multiple floating guide rods are connected between the main seat and the fixed seat, and the universal joint limiter is set in the main seat.

4. The fully automatic capping mechanism according to claim 3, characterized in that: A reinforcement plate is fixedly connected between adjacent guide rods.

5. The fully automatic capping mechanism according to claim 3, characterized in that: The outer sleeve of the rotating main sleeve is provided with a movable sleeve, the bottom of the movable sleeve is fixedly connected with a copper sleeve, the top is provided with a compression spring and a distance rod, the rotating main sleeve and the main seat are aligned with through holes, the lower end of the distance rod is tightened on the movable sleeve, the upper end gap passes through the through hole and tightens the limiting plate.

6. The fully automatic capping mechanism according to claim 5, characterized in that: The top outer circumference of the copper sleeve is provided with an annular boss, the outer circumference of the movable sleeve is symmetrically provided with an L-shaped plate, the bottom of the L-shaped plate extends to the bottom of the annular boss and is provided with an adjusting bolt, and the other end of the adjusting bolt abuts against the copper sleeve.

7. The fully automatic capping mechanism according to claim 1, characterized in that: A first cylinder is fixedly installed on the top of the screw cap bracket, a piston rod of the first cylinder is vertically arranged downward and connected to a fixed seat, a linear guide is fixedly installed on the side of the screw cap bracket, and the fixed seat is fixedly connected to a sliding block of the linear guide.

8. The fully automatic capping mechanism according to claim 1, characterized in that: The clamping drive assembly includes a second cylinder symmetrically fixedly mounted on the rotating main sleeve, a piston rod of the second cylinder is vertically arranged downward and fixedly connected to a movable seat, and a bearing assembly is connected between the movable seat and the second sleeve.

9. The fully automatic capping mechanism according to claim 8, characterized in that: The outer circumference of the rotating main sleeve is provided with a waist-shaped through groove, and photoelectric detection switches are symmetrically installed on both sides of the waist-shaped through groove. The movable seat is fixedly installed with a sensing block that penetrates the waist-shaped through groove and extends between the two photoelectric detection switches.

10. The fully automatic capping mechanism according to claim 1, characterized in that: The claw bar includes a first extension section, a second extension section, a third extension section and a fourth extension section which are connected in sequence. The second extension section is vertically arranged and hinged to the clamping claw seat. The first extension section is horizontally arranged and has a waist-shaped hole. A pin shaft passing through the waist-shaped hole is fixed on the lifting shaft. The third extension section and the fourth extension section are respectively arranged to be inclined downward in the same direction and opposite direction to the first extension section.

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