Bag opening clamping device of packaging machine

Abstract

The utility model relates to a bag opening clamping device of a packaging machine, and belongs to the technical field of packaging machines. Comprising a supporting ring, a spring, a sleeve, a connecting rod, a tightening rope and an electric telescopic rod. Sleeves are evenly arranged on the inner side face of the supporting ring in the circumferential direction at intervals. A connecting rod is slidably mounted in the sleeve; one end of the spring is fixedly connected with the connecting rod, and the other end of the spring is fixedly connected with the supporting ring; positioning rings are arranged at the free ends of the connecting rods; one end of the tightening rope is fixedly connected with the supporting ring, and the other end of the tightening rope sequentially penetrates through all the positioning rings in the circumferential direction of the supporting ring and then extends outwards from the supporting ring. An electric telescopic rod is arranged on the supporting ring, and the free end of the tightening rope is fixedly connected with the electric telescopic rod. The electric telescopic rod is adopted to pull the tightening rope, so that a ring defined by the tightening rope is shrunk, a packaging bag is firmly bound to the discharging pipe, the structure is simple, binding is rapid, the structure is firm, meanwhile, the ring defined by the tightening rope is driven by the spring to be evenly expanded and shrunk, and damage to the packaging bag is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a bag mouth clamping device for a packaging machine. Background Technology

[0002] The ton bag packaging machine for bottom-blown furnace and converter ash discharge points was originally designed to use inflatable airbags at the ash discharge port to clamp and fix the bag opening, thus firmly connecting the bag opening to the machine's feed pipe. However, in actual operation, these airbags frequently fail and have a very short service life. This situation makes it impossible to use the inflatable airbags to fix the bag opening during ash discharge operations, thus necessitating manual bag tying as a substitute.

[0003] Manual bag-tying has many drawbacks. From an occupational health perspective, since dust and other harmful substances are released during the ash disposal process, manual bag-tying exposes operators to this environment for extended periods, undoubtedly increasing health risks. Furthermore, the frequent manual bag-tying process, requiring manual tying of the bag opening each time ash is released, is time-consuming and severely impacts overall work efficiency. Utility Model Content

[0004] To solve or partially solve the problems existing in related technologies, this utility model provides a bag mouth clamping device for a packaging machine, which aims to provide a new device for connecting the bag mouth of a packaging bag to the feed pipe of the packaging machine.

[0005] The above-mentioned bag mouth clamping device for a packaging machine includes a support ring, a spring, a sleeve, a connecting rod, a tightening rope, and an electric telescopic rod;

[0006] The inner surface of the support ring is provided with sleeves evenly spaced around its circumference, and the sleeves are arranged radially along the support ring; a connecting rod is slidably installed inside the sleeve; a spring is installed inside the sleeve, with one end fixedly connected to the connecting rod and the other end fixedly connected to the support ring; a positioning ring is provided at the free end of the connecting rod; one end of the tightening rope is fixedly connected to the support ring, and the other end passes through all the positioning rings in sequence around the circumference of the support ring and extends outward from the support ring; an electric telescopic rod is provided on the support ring, and the free end of the tightening rope is fixedly connected to the end of the electric telescopic rod.

[0007] In some designs, the outer circumferential surface of the support ring is provided with a waist-shaped clearance hole for the free end of the tightening rope to pass through.

[0008] The side of the support ring is provided with a positioning hole corresponding to the position of the clearance hole, and the positioning bolt passes through the positioning hole and is threadedly screwed into the nut.

[0009] The electric telescopic rod is positioned on one side of the positioning hole; the tightening rope is draped over the positioning bolt.

[0010] In some schemes, the connecting point of the tightening rope and the positioning ring and the line of the positioning bolt are tangent to the discharge pipe of the packaging machine.

[0011] In some schemes, the extension direction of the electric telescopic rod is perpendicular to the connecting point of the tightening rope and the positioning ring and the line of the positioning bolt.

[0012] In some schemes, the tightening rope is sleeved with a rubber tube.

[0013] The technical scheme provided by the utility model can have the following beneficial effects:

[0014] The utility model discloses a packaging machine bag opening clamping device, which comprises a supporting ring, a spring, a sleeve pipe, a connecting rod, a tightening rope, an electric telescopic rod, a let -in hole, a positioning hole and a positioning bolt.

[0015] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and other objects, features and advantages of the utility model will become more apparent from the following detailed description of exemplary embodiments of the utility model, taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the several views, and wherein:

[0017] Figure 1 is the structural schematic view of the packaging machine bag opening clamping device shown in the utility model embodiment;

[0018] Figure 2 is another structural schematic view of the packaging machine bag opening clamping device shown in the utility model embodiment;

[0019] Reference signs:

[0020] 1, supporting ring; 2, spring; 3, sleeve pipe; 4, connecting rod; 5, tightening rope; 6, electric telescopic rod; 7, let -in hole; 8, positioning hole; 9, positioning bolt; 10, nut; 11, positioning ring. DETAILED DESCRIPTION

[0021] The utility model will be described in further detail below in conjunction with the drawings and specific embodiments, but the protection scope of the utility model is not limited to the content.

[0022] Please refer to Figure 1 and Figure 2The application provides a bag mouth clamping device of a packaging machine, which comprises a supporting ring 1, a spring 2, a sleeve 3, a connecting rod 4, a tightening rope 5 and an electric telescopic rod 6.

[0023] The inner side surface of the supporting ring 1 is uniformly and spacedly provided with the sleeves 3 in the circumferential direction, and the sleeves 3 are arranged in the radial direction of the supporting ring 1. The number of the sleeves 3 can be set according to the size of the supporting ring 1. The connecting rod 4 is slidably installed in the sleeve 3. The spring 2 is installed in the sleeve 3, and one end of the spring 2 is fixedly connected with the connecting rod 4, and the other end of the spring 2 is fixedly connected with the supporting ring 1. The sleeve 3, the connecting rod 4 and the spring 2 form a rod member which can be elongated or shortened in the radial direction of the supporting ring 1, and the rod member can provide a certain tension. The free end of the connecting rod 4 is provided with a positioning ring 11, and the axial direction of the positioning ring 11 is perpendicular to the circumferential direction of the supporting ring 1. One end of the tightening rope 5 is fixedly connected with the supporting ring 1, and the other end of the tightening rope 5 is sequentially threaded through all the positioning rings 11 in the circumferential direction of the supporting ring 1 and then extends outward from the supporting ring 1, and the tightening rope 5 forms a loop in the supporting ring 1. The electric telescopic rod 6 is arranged on the supporting ring 1, and the free end of the tightening rope 5 is fixedly connected with the end of the electric telescopic rod 6.

[0024] When the bag mouth needs to be bound, the electric telescopic rod 6 is elongated to tension the tightening rope 5, and the loop formed by the tightening rope 5 is reduced, so that the bag mouth of the packaging bag is firmly bound on the discharging pipe. The binding efficiency is high, the structure is simple, the structure is firm, and the failure rate is low. When the electric telescopic rod 6 is shortened, the loop formed by the tightening rope 5 is uniformly enlarged under the elastic force of the spring 2, so that the bag mouth of the packaging bag is loosened, and the packaging bag can be taken off. In the device, the spring 2 is arranged, so that the loop formed by the tightening rope 5 can be uniformly enlarged or reduced, so that different positions of the tightening rope 5 can be synchronously contacted with the packaging bag, thereby reducing the damage of the tightening rope 5 to the packaging bag.

[0025] In some specific embodiments, a waist-shaped accommodation hole 7 is formed on the outer circumferential surface of the supporting ring 1 for the free end of the tightening rope 5 to pass through; a positioning hole 8 corresponding to the position of the accommodation hole 7 is formed on the side surface of the supporting ring 1, and a positioning bolt 9 is screwed with a nut 10 after passing through the positioning hole 8; the electric telescopic rod 6 is arranged on one side of the positioning hole 8, the tightening rope 5 is arranged on the positioning bolt 9, and when in use, the position of the positioning bolt 9 can be adjusted to adjust the extension direction of the connecting point of the tightening rope 5 and the positioning ring 11 and the connecting line of the positioning bolt 9, so that the connecting point of the tightening rope 5 and the positioning ring 11 and the connecting line of the positioning bolt 9 are tangent to the discharge pipe of the packaging machine, and thus the circle surrounded by the tightening rope 5 is matched with the size of the discharge pipe, and when the electric telescopic rod 6 is elongated, the stress of all the springs 2 is equal, effectively ensuring that the circle surrounded by the tightening rope 5 can be uniformly expanded or reduced.

[0026] In the embodiment, the extension direction of the electric telescopic rod 6 is perpendicular to the connecting line of the connecting point of the tightening rope 5 and the positioning ring 11 and the positioning bolt 9, so that the stress direction of the electric telescopic rod 6 is always along the elongation direction of the electric telescopic rod 6, the electric telescopic rod 6 does not bear torque, and thus the stable operation of the electric telescopic rod 6 is effectively ensured, and the service life of the device is improved.

[0027] In the embodiment, the tightening rope 5 is sleeved with a rubber tube, the setting of the rubber tube increases the stress area of the packaging bag, effectively avoids the problem that the packaging bag is broken, and simultaneously, through the elastic deformation of the rubber tube, the packaging bag can be effectively clamped, the sealing performance of the bag opening of the packaging bag and the discharge pipe is improved, and the problem of dust overflow is effectively avoided.

[0028] The above has described the embodiments of the utility model, the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used in this paper is intended to best explain the principles, practical applications or improvements of the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed in this paper.

Claims

1. A packaging bag mouth clamping device characterized by: It comprises a support ring (1), a spring (2), a sleeve (3), a connecting rod (4), a tightening rope (5), an electric telescopic rod (6); The inner side of the support ring (1) is uniformly spaced with sleeves (3) around its circumferential direction, and the sleeves (3) are arranged along the radial direction of the support ring (1); The connecting rod (4) is slidably installed in the sleeve (3); The spring (2) is installed in the sleeve (3), and one end is fixedly connected with the connecting rod (4), and the other end is fixedly connected with the support ring (1); The free end of the connecting rod (4) is provided with a positioning ring (11); One end of the tightening rope (5) is fixedly connected with the support ring (1), and the other end is sequentially threaded through all the positioning rings (11) around the circumferential direction of the support ring (1) and then extends outward from the support ring (1); The support ring (1) is provided with an electric telescopic rod (6), and the free end of the tightening rope (5) is fixedly connected with the end of the electric telescopic rod (6).

2. The bag opening clamping device of a packaging machine according to claim 1, wherein: A waist-shaped accommodation hole (7) is formed on the outer circumferential surface of the support ring (1) for the free end of the tightening rope (5) to pass through; A positioning hole (8) corresponding to the accommodation hole (7) is formed on the side surface of the support ring (1), and a positioning bolt (9) is screwed with a nut (10) after passing through the positioning hole (8); The electric telescopic rod (6) is arranged on one side of the positioning hole (8), and the tightening rope (5) is arranged on the positioning bolt (9).

3. The bag opening clamping device of a packaging machine according to claim 2, wherein: The connecting point of the tightening rope (5) and the positioning ring (11) and the line connecting the positioning bolt (9) are tangent to the discharge pipe of the packaging machine.

4. The bag opening clamping device of a packaging machine according to claim 3, wherein: The extension direction of the electric telescopic rod (6) is perpendicular to the line connecting the connecting point of the tightening rope (5) and the positioning ring (11) and the positioning bolt (9).

5. The bag opening clamping device of a packaging machine according to claim 1, wherein: A rubber tube is sleeved on the tightening rope (5).

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