Cap screwing mechanism

Abstract

The utility model discloses a cap screwing mechanism which comprises a driving box, an electric telescopic rod is rotatably connected to the lower portion of the driving box, an annular limiting plate is fixedly connected to the outer side of the electric telescopic rod, an annular groove is formed in the driving box, and the annular limiting plate is slidably connected in the annular groove. A rotating mechanism is fixedly connected into the driving box, a first connecting plate is fixedly connected to the lower portion of the electric telescopic rod, two inserting grooves are symmetrically formed in the two sides of the lower portion of the first connecting plate, and two first connecting rods are slidably connected into the two inserting grooves. The electric telescopic rod is arranged to play a role in fixing and supporting the electric telescopic rod, the clamping and fixing structure is arranged to clamp and fix the bottle cap, when the electric telescopic rod is started to screw the bottle cap and the bottle body, the first telescopic spring plays a role in buffering, and the first telescopic spring loses elasticity when the cap is screwed for multiple times.

Description

Technical Field

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

[0002] The capping machine is also called a capping machine, a capping machine or a locking machine. It relies on its capping mechanism to tighten and loosen the bottle caps of plastic bottles and glass bottles after packaging. With the development of society, the capping machine has also developed from an ordinary capping machine to the current vacuum capping machine. In this way, after the items are capped, the reserved space inside the canned bottle remains vacuum, which can greatly improve the shelf life of the product.

[0003] The prior art CN214192494U discloses a vacuum capping machine capping head, which holds the bottle body tightly through an inflatable silicone ring, draws a vacuum into the cavity, prevents air from entering the bottle, and performs vacuum capping through a pneumatic actuator and a capping head, so that the bottle is in a vacuum state. The vacuum capping machine capping head provided by the present application combines the functions of holding the bottle body and vacuum capping, improves processing efficiency, does not need to set up a separate bottle holding mechanism, and reduces the operating costs of the enterprise.

[0004] However, the disadvantage of the above technical solution is that, although it realizes the function of holding the bottle body and vacuum screwing the cap, the spring for buffering the impact force on the bottle body is tightly wrapped by the structure, which is troublesome and cumbersome when the spring fatigues and loses its elasticity and needs to be disassembled and replaced. Therefore, it is necessary to design a screw cap mechanism. Utility Model Content

[0005] The purpose of the utility model is to provide a cover screwing mechanism to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a rotary cover mechanism, comprising a driving box, an electric telescopic rod is rotatably connected to the lower part of the driving box, an annular limit plate is fixedly connected to the outer side of the electric telescopic rod, an annular groove is opened inside the driving box, the annular limit plate is slidably connected in the annular groove, a rotating mechanism is fixedly connected inside the driving box, a first connecting plate is fixedly connected to the lower part of the electric telescopic rod, two slots are symmetrically opened on both sides below the first connecting plate, two first connecting rods are slidably connected in the two slots, two first connecting rods are slidably connected under the two first connecting rods, two second connecting rods are slidably connected in the two first sliding grooves, a first telescopic spring is wound around the outer sides of the two first connecting rods and the second connecting rods, a sliding hole is opened at one end of the two slots, and through-openings are opened laterally correspondingly inside the two first connecting rods, a clamping rod is slidably connected in the sliding hole and the through-opening, one end of the clamping rod is fixedly connected to a pulling plate outside the sliding hole, and a clamping fixing structure is fixedly connected under the two second connecting rods.

[0007] According to the above technical solution, first limit blocks are symmetrically fixedly connected on both sides of the second connecting rod, first limit grooves are symmetrically opened on both sides inside the first sliding groove, and the first limit blocks are slidably connected in the first limit grooves.

[0008] According to the above technical solution, a first slot is opened above the sliding hole, a second telescopic spring is fixedly connected in the first slot, a round head clamping block is fixedly connected to the telescopic end of the second telescopic spring, a semicircular groove is opened above the clamping rod, and the round head end of the round head clamping block is clamped in the semicircular groove.

[0009] According to the above technical solution, the round head clamping block is symmetrically fixedly connected with the second limit blocks on both sides, the first notch is symmetrically opened with second limit grooves on both sides, and the second limit blocks are slidably connected in the second limit grooves.

[0010] According to the above technical solution, the rotating mechanism includes a first servo motor, which is fixedly connected to the right side of the driving box, a worm is fixedly connected to the output end of the first servo motor, a rotating rod is fixedly connected to the top of the electric telescopic rod, a worm wheel is fixedly connected to the outside of the rotating rod, and the worm and the worm wheel are meshed with each other.

[0011] According to the above technical solution, the clamping and fixing structure includes a second connecting plate, a second sliding groove is opened at the bottom of the second connecting plate, a rotating hole is opened on the right side of the second sliding groove, a bidirectional threaded rod is rotatably connected in the rotating hole, a second servo motor is fixedly connected to the right side of the bidirectional threaded rod, and two clamping plates are symmetrically threadedly connected on both sides of the outer side of the bidirectional threaded rod in the second sliding groove.

[0012] Compared with the prior art, the beneficial effect achieved by the utility model is as follows: the utility model, by providing an annular limit plate and an annular groove, plays a fixing and supporting role for the electric telescopic rod, by providing a clamping and fixing structure, clamps and fixes the bottle cap, when the electric telescopic rod is started to screw the bottle cap and the bottle body, the first telescopic spring plays a buffering role, and the first telescopic spring loses its elasticity when the cap is screwed multiple times. By pulling the pulling plate outward, the pulling plate drives the card rod to move outward, so that the card rod moves out of the through-opening, the first connecting rod can be pulled out, and the first telescopic spring sleeved on the outside can be taken out for replacement. After the replacement is completed, the first connecting rod is inserted into the slot, and the card rod can be inserted into the through-opening for fixed connection, which is convenient for disassembly and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall front cross-sectional structure of the utility model;

[0016] Figure 3 The utility model Figure 2 A in the enlarged view;

[0017] Figure 4 The utility model Figure 2 The enlarged view of point B in the figure;

[0018] In the figure: 1, drive box, 2, electric telescopic rod, 3, annular limit, 4, annular groove, 5, rotating mechanism, 6, first connecting plate, 7, slot, 8, first connecting rod, 9, first sliding groove, 10, second connecting rod, 11, first telescopic spring, 12, sliding hole, 13, through-hole, 14, clamping rod, 15, pulling plate, 16, clamping and fixing structure, 17, first limit block, 18, first limit groove, 19, first notch, 20, second telescopic spring, 21, round head clamping block, 22, semicircular groove, 23, second limit block, 24, second limit groove, 25, first servo motor, 26, worm, 27, rotating rod, 28, worm wheel, 29, second connecting plate, 30, second sliding groove, 31, rotating hole, 32, bidirectional threaded rod, 33, second servo motor, 34, clamping plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4The utility model provides a technical solution: a screw cap mechanism, including a driving box 1, an electric telescopic rod 2 is rotatably connected to the lower part of the driving box 1, an annular limit plate 3 is fixedly connected to the outer side of the electric telescopic rod 2, an annular groove 4 is opened inside the driving box 1, the annular limit plate 3 is slidably connected in the annular groove 4, a rotating mechanism 5 is fixedly connected inside the driving box 1, a first connecting plate 6 is fixedly connected to the lower part of the electric telescopic rod 2, two slots 7 are symmetrically opened on both sides of the lower part of the first connecting plate 6, two first connecting rods 8 are slidably connected in the two slots 7, two first connecting rods 8 are slidably connected in the two slots 7, two first sliding grooves 9 are opened below the two first connecting rods 8, two second connecting rods 10 are slidably connected in the two first sliding grooves 9, the outer sides of the two first connecting rods 8 and the second connecting rods 10 are wound and connected with a first telescopic spring 11, a sliding hole 12 is opened at one end of the two slots 7, and through holes 13 are opened horizontally in the interior of the two first connecting rods 8, and the sliding holes 12 and the through holes 13 are correspondingly opened. A card rod 14 is slidably connected, and one end of the card rod 14 is fixedly connected with a pulling plate 15 outside the sliding hole 12. A clamping and fixing structure 16 is fixedly connected to the lower parts of the two second connecting rods 10. The electric telescopic rod 2 is fixedly supported by the annular limit plate 3 and the annular groove 4. The bottle cap is clamped and fixed by the clamping and fixing structure 16. When the electric telescopic rod 2 is started to buckle the bottle cap and the bottle body, the first telescopic spring 11 plays a buffering role. When the first telescopic spring 11 is repeatedly screwed on, the elasticity will be lost. By pulling the pulling plate 15 outward, the pulling plate 15 drives the card rod 14 to move outward, so that the card rod 14 moves out of the through-hole 13, and the first connecting rod 8 can be pulled out, and the first telescopic spring 11 set on the outside can be taken out for replacement. After the replacement is completed, the first connecting rod 8 is inserted into the slot 7, and the card rod 14 is inserted into the through-hole 13 for fixed connection, which is convenient for disassembly and installation.

[0021] according to Figure 3 As shown, the first limiting blocks 17 are symmetrically fixedly connected on both sides of the second connecting rod 10, and the first limiting grooves 18 are symmetrically opened on both sides of the first sliding groove 9. The first limiting blocks 17 are slidably connected in the first limiting grooves 18. The first limiting blocks 17 and the first limiting grooves 18 are provided to limit the second connecting rod 10.

[0022] according to Figure 4 As shown, a first notch 19 is formed above the sliding hole 12, a second telescopic spring 20 is fixedly connected in the first notch 19, a round-head clamping block 21 is fixedly connected to the telescopic end of the second telescopic spring 20, a semicircular groove 22 is formed above the clamping rod 14, and the round-head end of the round-head clamping block 21 is clamped with the semicircular groove 22;

[0023] according to Figure 4As shown, the round head block 21 is symmetrically fixedly connected with the second limit block 23 on both sides, and the first notch 19 is symmetrically provided with the second limit groove 24 on both sides. The second limit block 23 is slidably connected in the second limit groove 24. By providing the second telescopic spring 20, the second telescopic spring 20 pushes the round head block 21 to engage with the semicircular groove 22, so that the clamping rod 14 can be limited and fixed;

[0024] according to Figure 2 As shown, the rotating mechanism 5 includes a first servo motor 25, which is fixedly connected to the right side of the driving box 1, and a worm 26 is fixedly connected to the output end of the first servo motor 25. A rotating rod 27 is fixedly connected to the top of the electric telescopic rod 2, and a worm wheel 28 is fixedly connected to the outer side of the rotating rod 27. The worm 26 and the worm wheel 28 are meshed with each other. When the first servo motor 25 is started, the first servo motor 25 drives the worm 26 to rotate, and the worm 26 and the worm wheel 28 are meshed with each other, so that the worm 26 drives the worm wheel 28 to rotate, and the worm wheel 28 drives the rotating rod 27 to rotate, and the rotating rod 27 drives the electric telescopic rod 2 and the clamping and fixing structure 16 to rotate to screw the cap;

[0025] according to Figure 2 As shown, the clamping and fixing structure 16 includes a second connecting plate 29, a second sliding groove 30 is opened below the second connecting plate 29, a rotating hole 31 is opened on the right side of the second sliding groove 30, a bidirectional threaded rod 32 is rotatably connected in the rotating hole 31, a second servo motor 33 is fixedly connected to the right side of the bidirectional threaded rod 32, and the outer side of the bidirectional threaded rod 32 is symmetrically threadedly connected to clamping plates 34 on both sides in the second sliding groove 30. When the second servo motor 33 is started, the second servo motor 33 drives the bidirectional threaded rod 32 to rotate, and two clamping plates 34 are threadedly connected through the bidirectional threaded rod 32. The rotation of the bidirectional threaded rod 32 drives the two clamping plates 34 to move in relative directions, and the two clamping plates 34 can clamp and fix the bottle cap;

[0026] When the utility model is used, the second servo motor 33 is started, and the second servo motor 33 drives the bidirectional threaded rod 32 to rotate. The bidirectional threaded rod 32 is threadedly connected with two clamping plates 34. The rotation of the bidirectional threaded rod 32 drives the two clamping plates 34 to move in relative directions. The two clamping plates 34 can clamp and fix the bottle cap. The annular limit plate 3 and the annular groove 4 are provided to play a fixed supporting role for the electric telescopic rod 2. The clamping and fixing structure 16 is provided to clamp and fix the bottle cap. When the electric telescopic rod 2 is started to buckle the bottle cap and the bottle body, the first telescopic spring 11 plays a buffering role. The first servo motor 25 is started, and the first servo motor 25 drives the worm 26 to rotate. The worm 26 and the worm wheel 28 are meshed with each other, and the worm 26 drives the worm wheel 28 to rotate. The worm gear 28 drives the rotating rod 27 to rotate, and the rotating rod 27 drives the electric telescopic rod 2 and the clamping and fixing structure 16 to rotate to screw the cap. When the cap is screwed multiple times, the first telescopic spring 11 will lose its elasticity. By pulling the pulling plate 15 outward, the pulling plate 15 drives the clamping rod 14 to move outward, so that the clamping rod 14 moves out of the through-hole 13, and the first connecting rod 8 can be pulled out, and the first telescopic spring 11 set on the outside can be taken out for replacement. After the replacement is completed, the first connecting rod 8 is inserted into the slot 7, and the clamping rod 14 is inserted into the through-hole 13 for fixed connection, which is convenient for disassembly and installation. The components of this device are all universal standard parts or components known to those skilled in the art, and its structure and principle can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A capping mechanism, comprising a drive box (1), characterized in that: The lower part of the driving box (1) is rotatably connected to an electric telescopic rod (2), the outer side of the electric telescopic rod (2) is fixedly connected to an annular limit plate (3), the inner part of the driving box (1) is provided with an annular groove (4), the annular limit plate (3) is slidably connected in the annular groove (4), a rotating mechanism (5) is fixedly connected in the driving box (1), the lower part of the electric telescopic rod (2) is fixedly connected to a first connecting plate (6), two slots (7) are symmetrically provided on both sides of the lower part of the first connecting plate (6), two first connecting rods (8) are slidably connected in the two slots (7), and two first sliding grooves are provided below the two first connecting rods (8) (9), the two first sliding grooves (9) are internally slidably connected to two second connecting rods (10), the outer sides of the two first connecting rods (8) and the second connecting rods (10) are wound with a first telescopic spring (11), one end of the two slots (7) is provided with a sliding hole (12), the interior of the two first connecting rods (8) is correspondingly provided with a through hole (13), the sliding hole (12) and the through hole (13) are slidably connected to a clamping rod (14), one end of the clamping rod (14) is fixedly connected to a pulling plate (15) outside the sliding hole (12), and the lower part of the two second connecting rods (10) is fixedly connected to a clamping fixing structure (16).

2. A capping mechanism according to claim 1, characterized in that: The second connecting rod (10) is symmetrically fixedly connected with first limit blocks (17) on both sides, the first sliding groove (9) is symmetrically provided with first limit grooves (18) on both sides, and the first limit blocks (17) are slidably connected in the first limit grooves (18).

3. A capping mechanism according to claim 2, characterized in that: A first notch (19) is provided above the sliding hole (12), a second telescopic spring (20) is fixedly connected inside the first notch (19), a round-head clamping block (21) is fixedly connected to the telescopic end of the second telescopic spring (20), a semicircular groove (22) is provided above the clamping rod (14), and the round-head end of the round-head clamping block (21) is clamped with the semicircular groove (22).

4. A capping mechanism according to claim 3, characterized in that: The round head clamping block (21) is symmetrically fixedly connected with a second limiting block (23) on both sides, the first notch (19) is symmetrically provided with a second limiting groove (24) on both sides, and the second limiting block (23) is slidably connected in the second limiting groove (24).

5. A capping mechanism according to claim 4, characterized in that: The rotating mechanism (5) comprises a first servo motor (25), the first servo motor (25) is fixedly connected to the right side of the driving box (1), the output end of the first servo motor (25) is fixedly connected to a worm (26), the upper part of the electric telescopic rod (2) is fixedly connected to a rotating rod (27), the outer side of the rotating rod (27) is fixedly connected to a worm wheel (28), and the worm (26) and the worm wheel (28) are meshed with each other.

6. A cap screwing mechanism according to claim 5, characterized in that: The clamping and fixing structure (16) comprises a second connecting plate (29), a second sliding groove (30) is formed below the second connecting plate (29), a rotating hole (31) is formed on the right side of the second sliding groove (30), a bidirectional threaded rod (32) is rotatably connected in the rotating hole (31), a second servo motor (33) is fixedly connected to the right side of the bidirectional threaded rod (32), and two clamping plates (34) are symmetrically threadedly connected on both sides of the outer side of the bidirectional threaded rod (32) in the second sliding groove (30).

Images