Jacking and pressing device for fast-adjusting torque screw cap head

Abstract

The utility model discloses a jacking device of a quick torque-adjusting cap screwing head, which is characterized in that a connector is adaptively connected with an external cap screwing machine, a cap pressing rod is inserted in the center of the connector, the lower end of the cap pressing rod is elastically and movably connected with a lower pressing rod through a bearing piece, and a rebounding mechanism is adaptively and hermetically mounted on the periphery of the lower pressing rod. The screw cap head assembly is simple in structure, can be installed in various screw cap head assemblies in a matched mode as a whole, and is convenient to replace as a whole; and due to the arrangement of the springback mechanism, when the downward pressing rod and the cap grabbing device are used in cooperation, after the cap grabbing device makes contact with a bottle cap, the bottle cap which shakes can be straightened in time, swing during cap screwing is reduced, and the bottle cap is accurately pressed into a bottle opening at a time for cap sealing.

Description

Technical Field

[0001] The utility model relates to the technical field of capping machines, in particular to a top pressing device of a fast-adjusting torque capping head. Background Art

[0002] The capping machine is also called a capping machine, a capping machine or a capping machine. It is used to tighten and loosen the caps of plastic bottles and glass bottles after packaging.

[0003] The power transmission of the capping head part of the capping machine is inseparable from the pressing mechanism. The pressing mechanism usually adopts a lifting drive mechanism (such as a cam drive mechanism) to drive the capping gripper to lift and lower as a whole. The capping gripper is provided with a claw for grabbing the lid, and the claw is driven by the corresponding driving cylinder to move. After the capping gripper is lowered as a whole, the driving cylinder corresponding to the claw drives the claw to grab the lid, and then the capping gripper is driven to rotate as a whole by the rotating driving mechanism, so as to tighten the lid to the container. When the capping gripper grabs the lid, the lid is easily skewed, which causes the lid and the container to be poorly matched during the operation of the pressing mechanism. In severe cases, it may even cause the lid to fail to be screwed normally or cause the product to leak and be damaged; in addition, since the claw driving cylinder needs to be activated after the capping gripper is lowered to a predetermined position as a whole, it is necessary to accurately adjust the stroke position of the claw driving cylinder. In actual production, this requires repeated adjustment of the number of pulses of the encoder of the claw driving cylinder to achieve this, which is more troublesome in actual use.

[0004] Therefore, designing a pressing device for a quick-adjusting torque capping head to simplify the positioning of the bottle caps that need to be capped and reduce the skew or swing of the capping bottle caps has become a direction for further improvement. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a pressing device for a quick-adjusting torque capping head.

[0006] The utility model provides the following technical solution: a pressing device for a quick-adjust torque capping head, comprising a connecting head, a capping rod, a lower pressing rod and a rebound mechanism, wherein the connecting head is adaptably connected to an external capping machine, a capping rod is inserted into the center of the connecting head, the lower end of the capping rod is elastically and movably connected to the lower pressing rod through a bearing member, and a rebound mechanism is adaptably sealed and installed on the outer periphery of the lower pressing rod.

[0007] Preferably, the rebound mechanism comprises a moving shaft, a rebound guide sleeve, a rebound key, a rebound guide seat, a rebound pull block, a spring top ring, an upper guide sleeve, a first spring, a second spring and a third spring, the lower end of the connecting head is sealed and fixed with a moving shaft, the outer side of the lower end of the moving shaft is provided with a rebound guide sleeve, the lower end of the rebound guide sleeve is in contact with the rebound key, the two rebound keys are relatively attached to the lower part of the moving shaft, the outer side of the rebound key is provided with a rebound guide seat, and the lower end of the rebound guide seat is fixed with a rebound pull block; the upper end of the rebound guide seat is provided with a spring top ring, and a first spring is clamped between the spring top ring and the outer periphery of the moving shaft; the moving shaft is fixed with an upper guide sleeve, the upper guide sleeve is provided with a lower pressure rod, the upper outer periphery of the lower pressure rod is provided with a second spring, the lower part of the lower pressure rod is provided with a third spring, and the second spring and the third spring are not in contact with each other.

[0008] Preferably, the bearing component includes a plane bearing and a bearing mounting seat, the upper end of the lower pressure rod is provided with a bearing mounting seat, a plane bearing is fitted and installed in the bearing mounting seat, and the plane bearing is fit and connected to the lower end of the pressure cover rod; a gap is left between the outer wall of the bearing mounting seat and the inner wall of the connecting head.

[0009] Preferably, a limiting boss is provided in the middle of the bearing mounting seat, an upper end of a second spring is abutted on the limiting boss, and a lower end of the second spring is abutted against the inner side of the moving shaft.

[0010] Preferably, a limiting ring is provided on the lower pressure rod, the upper guide sleeve is abutted against the upper end surface of the limiting ring, the upper end of the third spring is abutted against the lower end surface of the limiting ring, and the lower end of the third spring is abutted against the inner side of the rebound pull block.

[0011] Preferably, a waterproof pad is provided at the connection between the rebound pull block and the rebound guide seat.

[0012] Preferably, the wire diameters and inner diameters of the first spring, the second spring and the third spring decrease successively.

[0013] Preferably, a mounting groove is provided at the upper end of the moving shaft, a sealing ring is provided in the mounting groove, and the sealing ring is coated on the outer wall of the connecting head.

[0014] Preferably, the upper guide sleeve is made of PEK material.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The utility model is connected to an external capping machine through a connecting head, a capping rod is inserted in the center of the connecting head, the lower end of the capping rod is elastically connected to the lower pressure rod through a bearing, and a rebound mechanism is installed on the outer periphery of the lower pressure rod in a seal. The utility model has a simple structure and can be installed in a variety of capping head assemblies as a whole, and is convenient to replace as a whole; the setting of the rebound mechanism enables the lower pressure rod and the cap grabbing gripper to be used in coordination, and the cap grabbing gripper can promptly straighten the shaking bottle cap after contacting the bottle cap and reduce the swing during capping, so that the bottle cap can be accurately pressed into the bottle mouth for capping at one time without adjusting the claw driving cylinder.

[0017] (2) The upper guide sleeve, the moving shaft and the rebound guide seat of the rebound mechanism of the utility model cooperate with each other to realize double-ear positioning of the lower pressure rod, so that the lower pressure rod and the capping rod are more vertical during use and the positioning of the bottle cap is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the motion shaft structure of the utility model;

[0021] Figure 4 It is a cross-sectional view of the rebound guide seat of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the push rod of the utility model. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] like Figures 1 to 5 As shown, a pressing device for a quick-adjust torque capping head includes a connecting head 1, a capping rod 2, a lower pressing rod 3, a moving shaft 4, a rebound guide sleeve 5, a rebound key 6, a rebound guide seat 7, a rebound pull block 8, a spring top ring 9, an upper guide sleeve 10, a first spring 11, a second spring 12, a third spring 13, a plane bearing 14, a bearing mounting seat 15, a limit ring 16, a waterproof pad 17, a sealing ring 18 and a wrench position 19.

[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figures 1 to 5 As shown, the connector 1 is adapted to be connected with an external capping machine, a capping rod 2 is inserted in the center of the connector 1, the lower end of the capping rod 2 is elastically connected to a lower pressing rod 3 through a top pressing bearing, and a rebound mechanism is adapted to be sealed and installed on the outer periphery of the lower pressing rod 3. Specifically, the rebound mechanism includes a moving shaft 4, a rebound guide sleeve 5, a rebound key 6, a rebound guide seat 7, a rebound pull block 8, a spring top ring 9, an upper guide sleeve 10, a first spring 11, a second spring 12 and a third spring 13. The moving shaft 4 is sealed and fixed at the lower end of the connecting head 1. Specifically, an upper sealing ring 20 is provided at the connection between the lower end of the connecting head 1 and the moving shaft 4; a rebound guide sleeve 5 is provided on the outer side of the lower end of the moving shaft 4, and the lower end of the rebound guide sleeve 5 is in contact with the rebound key 6. The two rebound keys 6 are relatively attached to the lower part of the moving shaft 4. A rebound guide seat 7 is provided on the outer side of the rebound key 6, and a rebound pull block 8 is fixed at the lower end of the rebound guide seat 7; a spring top ring 9 is provided on the upper end of the rebound guide seat 7, and an adjustment screw (not shown in this figure, which is a common adjustment screw on the market) is provided on the spring top ring 9, and the top pressure can be adjusted by the adjustment screw.

[0028] A first spring 11 is sandwiched between the spring top ring 9 and the outer periphery of the moving shaft 4. The first spring 11 can effectively buffer the pressure between the spring top ring 9 and the moving shaft 4, and maintain the coaxiality between the rebound guide seat 7, the moving shaft 4 and the spring top ring 9; an upper guide sleeve 10 is fixedly provided in the moving shaft 4, and a lower pressure rod 3 is passed through the upper guide sleeve 10. A second spring 12 is sleeved on the outer periphery of the upper part of the lower pressure rod 3, and a third spring 13 is sleeved on the lower part of the lower pressure rod 3. The second spring 12 and the third spring 13 are coaxial and do not contact each other.

[0029] A limiting boss is provided in the middle of the bearing mounting seat 15, on which the upper end of the second spring 12 is abutted, and the lower end of the second spring 12 is abutted against the inner side of the moving shaft 4; a limiting ring 16 is provided on the lower pressure rod 3, and the upper guide sleeve 10 is abutted against the upper end surface of the limiting ring 16, the upper end of the third spring 13 is abutted against the lower end surface of the limiting ring 16, and the lower end of the third spring 13 is abutted against the inner side of the rebound pull block 8. The third spring 13 is used to keep the rebound path of the lower pressure rod 3 after it is extended consistent with the initial extended state, so as to maintain the verticality and positioning of the cover pressing action; the wire diameters and inner diameters of the first spring 11, the second spring 12 and the third spring 13 are successively reduced and coaxially arranged, so as to evenly disperse and reduce the vibration rebound force during the cover screwing process.

[0030] The upper guide sleeve 10, the moving shaft 4 and the rebound guide seat 7 cooperate with each other to realize double-ear positioning of the lower pressing rod 3, so that the lower pressing rod 3 and the capping rod 2 are more vertical during use and the positioning of the bottle cap is more accurate.

[0031] The bearing component includes a plane bearing 14 and a bearing mounting seat 15. The upper end of the lower pressure rod 3 is sleeved with a bearing mounting seat 15. The plane bearing 14 is adapted to be installed in the bearing mounting seat 15. The plane bearing 14 is adapted to be connected to the lower end of the pressure cover rod 2. A gap is left between the outer wall of the bearing mounting seat 15 and the inner wall of the connecting head 1 to facilitate the up and down movement of the pressure cover rod 2.

[0032] A waterproof pad 17 is provided at the connection between the rebound pull block 8 and the rebound guide seat 7, and a mounting groove is provided at the upper end of the moving shaft 4. A sealing ring 18 is provided in the mounting groove. The sealing ring 18 is covered on the outer wall of the connecting head 1 to ensure the sealing of the top pressure device during use and facilitate subsequent cleaning.

[0033] The upper guide sleeve 10 is made of PEK, which is a ketone-based, semi-crystalline, high-performance engineering thermoplastic. With its high thermal dimensional stability, low flammability, excellent chemical resistance and excellent mechanical properties over a wide temperature range, it is often used in demanding applications in various markets. Because PEK can still maintain its strength at elevated temperatures, it is often used in applications with vibration or cyclic load conditions, and applications where components must withstand high mechanical loads for a long time at high temperatures, such as gears, shafts, bushings, bearings and rotating precision parts in the micro-aerospace and automotive industries.

[0034] The pressing rod 3 is provided with a wrench position 19 to facilitate replacement of the pressing rods 3 of different specifications.

[0035] The utility model has a simple structure and can be installed in various screw capping head assemblies as a whole, and is convenient to replace as a whole. The setting of the rebound mechanism enables the lower pressing rod 3 and the cap grabbing device to be used in coordination. After the cap grabbing device contacts the bottle cap, it can promptly straighten the shaking bottle cap and reduce the swing when screwing the cap, so that the bottle cap can be accurately pressed into the bottle mouth for sealing at one time.

[0036] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of rights of the present invention. Therefore, modifications, equivalent changes, improvements, etc. made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A pressing device for a quick-adjust torque capping head, characterized in that: The invention comprises a connecting head (1), a capping rod (2), a lower pressing rod (3) and a rebound mechanism. The connecting head (1) is adaptably connected to an external capping machine. A capping rod (2) is inserted into the center of the connecting head (1). The lower end of the capping rod (2) is elastically and movably connected to the lower pressing rod (3) via a bearing. The outer periphery of the lower pressing rod (3) is adaptably sealed and mounted with a rebound mechanism.

2. The pressing device for a fast-adjusting torque capping head according to claim 1, characterized in that: The rebound mechanism comprises a motion shaft (4), a rebound guide sleeve (5), a rebound key (6), a rebound guide seat (7), a rebound pull block (8), a spring top ring (9), an upper guide sleeve (10), a first spring (11), a second spring (12) and a third spring (13); the motion shaft (4) is sealed and fixedly provided at the lower end of the connector (1); a rebound guide sleeve (5) is provided on the outer side of the lower end of the motion shaft (4); the lower end of the rebound guide sleeve (5) is in contact with the rebound key (6); the two rebound keys (6) are relatively attached to the lower part of the motion shaft (4); the outer side of the rebound key (6) is provided with a A rebound guide seat (7), wherein a rebound pull block (8) is fixedly arranged at the lower end of the rebound guide seat (7); a spring top ring (9) is arranged at the upper end of the rebound guide seat (7), and a first spring (11) is sandwiched between the spring top ring (9) and the outer periphery of the moving shaft (4); an upper guide sleeve (10) is fixedly arranged in the moving shaft (4), a lower pressure rod (3) is passed through the upper guide sleeve (10), a second spring (12) is sleeved on the upper outer periphery of the lower pressure rod (3), and a third spring (13) is sleeved on the lower part of the lower pressure rod (3), and the second spring (12) and the third spring (13) are not in contact with each other.

3. The pressing device for a fast-adjusting torque capping head according to claim 2, characterized in that: The bearing component comprises a plane bearing (14) and a bearing mounting seat (15); the upper end of the lower pressure rod (3) is sleeved with the bearing mounting seat (15); the plane bearing (14) is fitted and mounted in the bearing mounting seat (15); the plane bearing (14) is fitted and connected to the lower end of the pressure cover rod (2); a gap is left between the outer wall of the bearing mounting seat (15) and the inner wall of the connector (1).

4. The pressing device for a fast-adjusting torque capping head according to claim 3, characterized in that: A limiting boss is provided in the middle of the bearing mounting seat (15), the upper end of a second spring (12) is abutted against the limiting boss, and the lower end of the second spring (12) is abutted against the inner side of the moving shaft (4).

5. The pressing device for a fast-adjusting torque capping head according to claim 4, characterized in that: The lower pressure rod (3) is provided with a limiting ring (16), the upper guide sleeve (10) is arranged against the upper end surface of the limiting ring (16), the upper end of the third spring (13) is arranged against the lower end surface of the limiting ring (16), and the lower end of the third spring (13) is arranged against the inner side of the rebound pull block (8).

6. A pressing device for a fast-adjusting torque capping head according to claim 2 or 4, characterized in that: A waterproof pad (17) is provided at the connection between the rebound pull block (8) and the rebound guide seat (7).

7. The pressing device for a fast-adjusting torque capping head according to claim 5, characterized in that: The wire diameters and inner diameters of the first spring (11), the second spring (12) and the third spring (13) are successively reduced.

8. The pressing device for a fast-adjusting torque capping head according to claim 6, characterized in that: The upper end of the moving shaft (4) is provided with a mounting groove, a sealing ring (18) is provided in the mounting groove, and the sealing ring (18) is covered on the outer wall of the connecting head (1).

9. The pressing device for a fast-adjusting torque capping head according to claim 7, characterized in that: The upper guide sleeve (10) is made of PEK material.

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