CN211288314U

CN211288314U - Snap-in power double-stroke cylinder of steel belt binding machine for packaging

Info

Publication number: CN211288314U
Application number: CN202021244183.9U
Authority: CN
Inventors: 易楠; 周旭; 屈卓
Original assignee: Shenyang Yide Technology Co ltd
Current assignee: Shenyang Yide Technology Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2020-08-18
Anticipated expiration: 2030-07-01

Abstract

The utility model belongs to the field of packaging machinery, a two stroke cylinder of power are detained in biting of steel band strapper of packing usefulness is related to, including little cylinder, little piston rod, big cylinder and big piston, little cylinder is fixed in the upper end of big cylinder, little piston is located little cylinder, separate into upper and lower two parts with little cylinder, the upper portion of little cylinder is equipped with little jar and stretches out the gas port, big piston is located big cylinder, separate into upper and lower two parts with big cylinder, the one end of little piston rod is connected to little piston, the other end of little piston rod is located big cylinder and is located the upside of big piston, the one end of big piston rod is connected to big piston, the other end of big piston rod is located outside the lower extreme of big cylinder, the upper portion of big cylinder is equipped with big cylinder and stretches out the gas port, the lower part of big cylinder is equipped with big cylinder withdrawal. The utility model discloses can satisfy the demand of steel band bundling machine engagement mechanism two-stage stroke and thrust.

Description

Snap-in power double-stroke cylinder of steel belt binding machine for packaging

Technical Field

The utility model belongs to the packaging machinery field relates to a steel band strapper's of packing usefulness stings knot power double stroke cylinder, especially is used for the stinging knot power double stroke cylinder that the steel band of heavy material or goods was tied up.

Background

The cylinder is an important component structure in a pneumatic transmission system and a control system and is a cylindrical metal part for guiding the piston to perform linear reciprocating motion in the cylinder. Which guides the piston to perform a linear reciprocating movement in the cylinder to drive the reciprocating movement of the structural assembly connected thereto. In many cases, when the driving is realized by using the air cylinder, the piston rod of the air cylinder needs to have two fixed strokes.

The double-stroke cylinder used by the prior steel belt binding machine for packaging is mostly standard cylinder diameter and double pistons. Under the condition of the same pressure of compressed air, the output force difference of two strokes cannot be realized. The steel-band bundling machine requires a smaller force for the first stroke, and a relatively larger pushing force is required for the second stroke and the first stroke than for the first stroke, so that high-quality bundling can be realized. The existing double-stroke cylinder is difficult to meet the requirement of steel belt bundling.

Disclosure of Invention

Purpose of the utility model

The utility model discloses a solve the problem that current double stroke cylinder is hardly satisfied the steel band and ties up the requirement, provide a steel band strapper's that packing was used interlock power double stroke cylinder, can satisfy the demand that the steel band strapper was engaged in and is detained mechanism two-stage stroke and thrust.

Technical scheme

A snap-in power double-stroke cylinder of a steel belt strapping machine for packaging comprises a small cylinder barrel, a small piston rod, a large cylinder barrel and a large piston, wherein the small cylinder barrel is fixed at the upper end of the large cylinder barrel, the small piston is positioned in the small cylinder barrel and divides the small cylinder barrel into an upper part and a lower part, the upper part of the small cylinder barrel is provided with a small cylinder extending air port, the large piston is positioned in the large cylinder barrel and divides the large cylinder barrel into an upper part and a lower part, the small piston is connected with one end of the small piston rod, the other end of the small piston rod is positioned in the large cylinder barrel and positioned at the upper side of the large piston, the large piston is connected with one end of a large piston rod, the other end of the large piston rod is positioned outside the lower end of the large cylinder barrel, the upper part of the large cylinder barrel;

the lower end of the large cylinder barrel is connected with an extension barrel, and the other end of the large piston rod penetrates through not only the large cylinder bottom plate, but also the extension barrel;

a large piston rod guide ring is arranged between the large piston rod and the extension cylinder, a large piston guide ring is arranged between the large piston and the side wall of the large cylinder, and a small piston rod guide ring is arranged between the upper end plate of the large cylinder and the small piston rod.

Furthermore, the lower end and the upper end of the large cylinder barrel are respectively provided with a large cylinder bottom plate and a large cylinder upper end plate, and the upper end of the small cylinder barrel is provided with a small cylinder upper end plate; the big cylinder retraction air port is arranged on the big cylinder bottom plate, the big cylinder extension air port is arranged on the big cylinder upper end plate, the lower end of the small cylinder barrel is fixed on the big cylinder upper end plate, the small cylinder barrel is sealed by the big cylinder upper end plate, the upper end of the small cylinder barrel is sealed by the small cylinder upper end plate, and the small cylinder extension air port is arranged on the small cylinder upper end plate.

Furthermore, a small piston seal is arranged on the small piston and between the small piston and the side wall of the small cylinder barrel, a small piston rod seal is arranged on the large cylinder upper end plate and between the large cylinder upper end plate and the small piston rod, a large piston seal is arranged on the large piston and between the large piston and the side wall of the large cylinder barrel, and a large piston rod seal is arranged on the extension barrel and between the extension barrel and the large piston rod.

Furthermore, the upper end of the large piston is provided with a soft material which is positioned below the small piston rod.

Further, the soft material is polyurethane.

Furthermore, the large piston comprises a large piston upper part and a large piston lower part, the large piston is sealed between the large piston upper part and the large piston lower part, and large piston guide rings are arranged between the large piston upper part and the large piston lower part and the side wall of the large cylinder barrel.

Advantages and effects

The utility model has two cylinders with different sizes, and has double strokes; when the input compressed air pressure is the same, the output pressure of the air cylinders with different cylinder diameter ratios is different; the structure design is simple, and after the cylinder is mounted on the binding machine, the cylinder is dismounted, repaired and maintained on line.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic front view of the present invention;

fig. 3 is a schematic view of the side structure of the present invention.

Description of reference numerals: 1. a small cylinder barrel; 2. a small piston; 3. sealing the small piston; 4. a small piston rod; 5. the small piston rod is sealed; 6. a large cylinder barrel; 7. a large piston; 8. sealing a large piston; 9. a large piston rod; 10. sealing a large piston rod; 11. a large piston rod guide ring; 12. a vat base plate; 13. a large piston guide ring; 14. a small piston rod guide ring; 15. the big cylinder extends out of the air port; 16. the small cylinder extends out of the air port; 17. the big cylinder retracts to the air port; 18. an upper end plate of the small cylinder; 19. an upper end plate of the large cylinder; 20. the cartridge is extended.

Detailed Description

The invention will be further explained with reference to the drawings:

as shown in fig. 1, 2 and 3, a snap-in power double-stroke cylinder of a steel band binding machine for packaging comprises a small cylinder barrel 1 and a small piston 2, the small piston rod 4, big cylinder 6 and big piston 7, 1 screwed connection of small cylinder is fixed in the upper end of big cylinder 6, small piston 2 is located small cylinder 1, separate into upper and lower two parts with small cylinder 1, the upper portion of small cylinder 1 is equipped with the little jar and stretches out gas port 16, big piston 7 is located big cylinder 6, separate into upper and lower two parts with big cylinder 6, the one end of small piston 2 threaded connection small piston rod 4, the other end of small piston rod 4 is located big cylinder 6 and is located the upside of big piston 7, big piston 7 threaded connection big piston rod 9's one end, the other end of big piston rod 9 is located outside the lower extreme of big cylinder 6, the upper portion of big cylinder 6 is equipped with big jar and stretches out gas port 15, the lower part of big cylinder 6 is equipped with big jar withdrawal gas port 17.

The lower end and the upper end of the large cylinder barrel 6 are respectively provided with a large cylinder bottom plate 12 and a large cylinder upper end plate 19, and the upper end of the small cylinder barrel 1 is provided with a small cylinder upper end plate 18; the lower end of the large cylinder barrel 6 is closed through a large cylinder bottom plate 12, the lower end of the large cylinder bottom plate 12 is connected with an extension barrel 20 through screws, and the other end of the large piston rod 9 penetrates through the large cylinder bottom plate 12 and also penetrates through the extension barrel 20.

The big cylinder retraction air port 17 is arranged on the big cylinder bottom plate 12 and is used for connecting the lower part in the big cylinder 6 with an air device outside the big cylinder 6, the upper end of the big cylinder 6 is sealed by a big cylinder upper end plate 19, the big cylinder extension air port 15 is arranged on the big cylinder upper end plate 19 and is used for connecting the upper part in the big cylinder 6 with the air device outside the big cylinder 6, the lower end of the small cylinder barrel 1 is fixed on the big cylinder upper end plate 19, the small cylinder barrel 1 is sealed by the big cylinder upper end plate 19, the upper end of the small cylinder barrel 1 is sealed by a small cylinder upper end plate 18, and the small cylinder extension air port 16 is arranged on the small cylinder upper end plate 18. A large piston rod guide ring 11 is arranged between a large piston rod 9 and an extension cylinder 20, a large piston 7 comprises a large piston upper part and a large piston lower part which are connected together through screws, a large piston seal 8 is arranged between the side walls of the large piston 7 and the large cylinder 6, the large piston seal 8 is arranged between the large piston upper part and the large piston lower part, large piston guide rings 13 are arranged between the large piston upper part and the large piston lower part and the side wall of the large cylinder 6, and a small piston rod guide ring 14 is arranged between a large cylinder upper end plate 19 and a small piston rod 4. A small piston seal 3 is arranged on the small piston 2 and between the small piston 2 and the side wall of the small cylinder barrel 1, a small piston rod seal 5 is arranged on the large cylinder upper end plate 19 and between the large cylinder upper end plate 19 and the small piston rod 4, and a large piston rod seal 10 is arranged on the extension cylinder 20 and between the extension cylinder 20 and the large piston rod 9. The upper end of the large piston 7 is provided with a soft material which is positioned below the small piston rod 4, and the soft material is preferably polyurethane, so that collision noise can be effectively reduced.

When the double-stroke cylinder works, firstly, the small cylinder extends out of the air port 16 to be inflated, the small piston 2 and the small piston rod 4 extend downwards with a small thrust, and the large piston 7 and the large piston rod 9 are pushed to extend downwards for a small displacement. The large cylinder extension port 15 is then inflated and the large piston 7 and the large piston rod 9 extend downward with a large push force for a large displacement. Finally, when the cylinder is reset, the large cylinder retraction air port 17 is inflated, the large piston 7 and the large piston rod 9 retract upwards, and meanwhile, the small piston rod 4 is pushed upwards, so that the small piston 2 retracts upwards and returns to the initial position, and a working cycle is completed.

The small cylinder barrel 1, the small piston 2, the small piston rod 4, the large cylinder barrel 6, the large piston 7 and the large piston rod 9 are all preferably made of aluminum alloy, and the small piston type cylinder is light in weight and high in strength. The large piston rod guide rings 11, the large piston guide rings 13 and the small piston rod guide rings 14 are preferably in two groups, which is more favorable for the movement of the small piston rod 4 and the large piston rod 9.

"big" and "little" be relative, for example little cylinder 1 is than big cylinder 6's height and diameter is little. Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes in different forms based on the above description, and all embodiments cannot be exhausted here, and all obvious variations or changes induced by the technical solutions of the present invention are still in the protection scope of the present invention.

Claims

1. The utility model provides a two stroke cylinder of power are detained in biting of steel band strapper of packing usefulness which characterized in that: comprises a small cylinder barrel (1), a small piston (2), a small piston rod (4), a large cylinder barrel (6) and a large piston (7), wherein the small cylinder barrel (1) is fixed at the upper end of the large cylinder barrel (6), the small piston (2) is positioned in the small cylinder barrel (1) and divides the small cylinder barrel (1) into an upper part and a lower part, the upper part of the small cylinder barrel (1) is provided with a small cylinder extending air port (16), the large piston (7) is positioned in the large cylinder barrel (6) and divides the large cylinder barrel (6) into an upper part and a lower part, the small piston (2) is connected with one end of the small piston rod (4), the other end of the small piston rod (4) is positioned in the large cylinder barrel (6) and positioned at the upper side of the large piston (7), the large piston (7) is connected with one end of a large piston rod (9), the other end of the large piston rod (9) is positioned outside the lower end of the large cylinder barrel (6), the upper part of the large cylinder barrel, the lower part of the big cylinder barrel (6) is provided with a big cylinder retraction air port (17);

the lower end of the large cylinder barrel (6) is connected with an extension barrel (20), and the other end of the large piston rod (9) penetrates through the large cylinder bottom plate (12) and also penetrates through the extension barrel (20);

a large piston rod guide ring (11) is arranged between the large piston rod (9) and the extension cylinder (20), a large piston guide ring (13) is arranged between the large piston (7) and the side wall of the large cylinder (6), and a small piston rod guide ring (14) is arranged between the large cylinder upper end plate (19) and the small piston rod (4).

2. The snap-in power double stroke cylinder of the steel strip binding machine for packing as claimed in claim 1, wherein: the lower end and the upper end of the large cylinder barrel (6) are respectively provided with a large cylinder bottom plate (12) and a large cylinder upper end plate (19), and the upper end of the small cylinder barrel (1) is provided with a small cylinder upper end plate (18); the large cylinder retraction air port (17) is arranged on the large cylinder bottom plate (12), the large cylinder extension air port (15) is arranged on the large cylinder upper end plate (19), the lower end of the small cylinder barrel (1) is fixed on the large cylinder upper end plate (19), the small cylinder barrel (1) is closed through the large cylinder upper end plate (19), the upper end of the small cylinder barrel (1) is closed through the small cylinder upper end plate (18), and the small cylinder extension air port (16) is arranged on the small cylinder upper end plate (18).

3. The snap-in power double stroke cylinder of the steel strip binding machine for packing as claimed in claim 1, wherein: be equipped with little piston seal (3) on little piston (2) between the lateral wall that is located little piston (2) and little cylinder (1), be equipped with little piston rod seal (5) on big cylinder upper end plate (19) between lieing in big cylinder upper end plate (19) and little piston rod (4), be equipped with big piston seal (8) on big piston (7) between lieing in big piston (7) and big cylinder (6) lateral wall, be equipped with big piston rod seal (10) on extension section of thick bamboo (20) between extension section of thick bamboo (20) and big piston rod (9).

4. The snap-in power double stroke cylinder of the steel strip binding machine for packing as claimed in claim 1, wherein: the upper end of the large piston (7) is provided with a soft material which is positioned below the small piston rod (4).

5. The snap-in power double stroke cylinder of the steel strip wrapping machine for packing as claimed in claim 4, wherein: the soft material is polyurethane.

6. The snap-in power double stroke cylinder of the steel strip binding machine for packing as claimed in claim 3, wherein: the large piston (7) comprises a large piston upper part and a large piston lower part, a large piston seal (8) is positioned between the large piston upper part and the large piston lower part, and large piston guide rings (13) are arranged between the large piston upper part and the large piston lower part and the side wall of the large cylinder (6).