CN213109867U

CN213109867U - Sealing device of bagging machine

Info

Publication number: CN213109867U
Application number: CN202022017831.3U
Authority: CN
Inventors: 晁书堂; 宋晓飞; 李卫红; 权广宇; 晁旭阳
Original assignee: Henan Leixin Machinery Technology Co ltd
Current assignee: Henan Leixin Machinery Technology Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-05-04
Anticipated expiration: 2030-09-15

Abstract

The utility model relates to a equipment for packing technical field, concretely relates to bagging machine closing device for valve bag. A bagging machine sealing device comprises a bag opening clamping device and an air suction device, wherein the bag opening clamping device comprises a support frame, an air cylinder and a clamping ring, and the clamping ring is of a semi-annular structure and has the same inner diameter as the outer diameter of a discharge pipe; the air suction device comprises a fixed end cover, a first sealing ring, a second sealing ring and a sealing sleeve which are sequentially sleeved on the discharge pipe, an air outlet through hole is formed in the circumferential direction of the fixed end cover, an air inlet through hole is formed in the axial direction of the sealing sleeve, the fixed end cover is in threaded connection with the sealing sleeve, the outer wall of the sealing sleeve, which is close to the right end face, is in a conical shape, and a gap exists between the inner side of the end cover base and the sealing sleeve and is communicated with the air outlet through hole. The sealing device can reduce dust leakage when the valve bag is packaged, can quickly discharge air in the valve bag, and is easy to disassemble, assemble and maintain.

Description

Sealing device of bagging machine

Technical Field

The utility model relates to a equipment for packing technical field, concretely relates to bagging machine closing device for valve bag.

Background

The valve bag, commonly called as a bottom pasting bag, is an international popular packaging bag, is fed from a top or bottom valve port, and is formed into a square body after being filled with materials by adopting special bagging machine equipment, so that the stacked bag is neat and attractive. The valve bag is mainly used for packaging powdery or granular solid materials and flexible articles such as edible powder, chemical fertilizer, synthetic materials, explosive, grains, salt, mineral substances and the like. The concept of the valve bag and the corresponding bagging machine (filling machine) can be fully understood from the specification and drawings of the air bag sealing bag of the valve bag filling opening disclosed in the chinese utility model patent publication No. CN2844005Y, the automatic bagging mechanism of the valve bag filling machine disclosed in CN101870375A, and the valve bag automatic filling machine disclosed in CN 101885385A.

When the existing bagging machine works, the bag opening of the valve bag is sleeved on the discharge pipe of the bagging machine through the automatic bagging mechanism, and then materials enter the valve bag through the discharge pipe to finish filling. In order to avoid the in-process at the filling material among the prior art, the landing of valve pocket, generally the briquetting on the cylinder drive piston rod comes to seal and fix the sack of valve pocket, but because the clearance is great between the sack of ejection of compact mouth and valve pocket, and ejection of compact mouth is the rigid member, this has just caused a large amount of dust to spill over from the clearance, and at the material filling in-process, the gas in the valve pocket if can not in time discharge, not only will reduce packing speed and packing quality, still will increase the dust and follow the sack overflow volume, thereby it is more serious to make the dust reveal.

Disclosure of Invention

Many, the slow scheduling problem of packing speed of raise dust for solving current valve bag bagging machine existence, the utility model provides a dust when reducible valve bag packing is revealed, can discharge valve bag interior air fast, and the bagging machine closing device of easy dismouting.

In order to achieve the above object, the utility model provides a following technical scheme:

a bagging machine sealing device comprises a bag opening clamping device and an air suction device, wherein the bag opening clamping device comprises a support frame fixed on a bagging machine frame, an air cylinder fixed on the support frame and a clamping ring fixed on an air cylinder guide rod of the air cylinder, the clamping ring is of a semi-annular structure, the inner diameter of the clamping ring is the same as the outer diameter of a discharge pipe, and the bag opening clamping device is symmetrically arranged on two sides of the discharge pipe; the air suction device comprises a fixed end cover, a first sealing ring, a second sealing ring and a sealing sleeve, the fixed end cover comprises an end cover base and an end cover body with a cylindrical hollow structure, an end cover shaft hole is formed in the center of the end cover base, an inner circumference of the end cover body is provided with an inner end cover thread, an air outlet through hole penetrating through the side wall of the end cover body is formed in the end cover body close to the end cover base, the inner diameter of the end cover shaft hole is the same as the outer diameter of the discharging pipe, and the fixed end cover is fixed on the frame of the bagging machine and sleeved on the outer wall of the discharging pipe through the end cover; the sealing sleeve is sleeved on the outer wall of the discharge pipe and comprises a sleeve section, a sealing ring sleeve and a sleeve section which are integrally formed, the inner diameters of the sleeve section, the sealing ring sleeve and the sleeve section are all the same as the outer diameter of the discharge pipe, sealing sleeve external threads corresponding to the internal threads of the end cover are arranged on the outer wall of the sleeve section, which is close to the end face, is in a conical shape, an air inlet through hole which penetrates through the sleeve section, the sealing ring sleeve and the sleeve section is axially arranged on the wall of the sealing sleeve, and the sleeve section is in threaded connection with the end cover body; the first sealing ring is sleeved on the outer wall of the discharge pipe between the end cover base and one section of the sleeve, the inner diameter of the first sealing ring is the same as the outer diameter of the discharge pipe, and the outer diameter value of the first sealing ring is smaller than the length from the lower edge of the air inlet through hole to the axis of the sealing sleeve; the second sealing ring is sleeved on the outer wall of the section of the sleeve between the sealing ring sleeve and the end cover body, and the inner diameter of the second sealing ring is the same as the outer diameter of the section of the sleeve; when the end cover body is screwed on the sleeve section in a threaded manner, the end surfaces of the two sides of the first sealing ring respectively prop against the end cover base and the sleeve section, and a gap exists between the end surface of the inner side of the end cover base and the end surface of the sleeve section and is communicated with the air outlet through hole.

Preferably, a connecting flange is integrally formed on the end cover base, and the fixed end cover is fixed on the frame of the bagging machine through the connecting flange.

Preferably, an annular boss is arranged on the end face of the inner side of the end cover base, and the outer diameter of the annular boss is smaller than or equal to that of the first sealing ring.

Preferably, an elastic gasket is fixed on the inner wall of the clamping ring.

Preferably, the air inlet through holes are formed in a plurality of numbers and are uniformly distributed on the sealing sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the bag mouth clamping device with the clamping ring and the air cylinder is arranged, so that the bag mouth of the valve bag can be quickly and effectively fixed on the discharge pipe in a sealing manner, and the escape of dust is avoided; through setting up the getter device who constitutes by fixed end cover, first sealing washer, second sealing washer and sealing sleeve, can be quick with air and dust suction in the valve bag, improve filling efficiency, this getter device equipment convenient and fast, the commonality is strong moreover, is not afraid of the jam.

2. The outer wall of the sleeve section close to the end face is conical, so that the air inlet area of the air inlet through hole is increased, and the air inlet efficiency from the inside of the bag to the inside of the air inlet through hole is improved.

3. When the end cover body is screwed on one section of the sleeve, the first sealing ring and the second sealing ring can seal an air passage consisting of the air inlet through hole and the air outlet through hole, so that air and dust in the valve port bag are sucked from the bag to the dust collecting device communicated with the air outlet through hole in a single direction.

4. The connecting flange is arranged on the end cover base, so that the end cover base can be conveniently detached, and maintenance is facilitated; in order to enlarge the gap between the end surface of the inner side of the end cover base and the end surface of one section of the sleeve so as to improve the air suction efficiency, the end surface of the inner side of the end cover base is provided with the annular boss, so that the radial size of the first sealing ring can be reduced, the first sealing ring can be more effectively propped, and the effective sealing is realized; the elastic gasket is fixed on the inner wall of the clamping ring, so that the clamping force can be improved and the untight sealing caused by rigid clamping can be avoided when the clamping ring clamps the bag opening of the valve bag; the air inlet through holes can be uniformly distributed and arranged in a plurality of ways so as to improve the air and dust discharge efficiency.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the utility model at the operation.

Fig. 2 is a schematic structural view illustrating the components of the present invention.

Fig. 3 is a schematic diagram showing a longitudinal cross-sectional structure of the aerator according to the present invention after being mounted on the tapping pipe.

Fig. 4 is a schematic structural view of the bag mouth clamping device of the present invention.

Fig. 5 is a schematic structural view of the fixing end cap of the present invention.

Fig. 6 is a schematic structural view of the sealing sleeve according to the present invention.

In the figure: 1. the device comprises a bag mouth clamping device, 11, a support frame, 12, an air cylinder, 13, a clamping ring, 14, an elastic gasket, 2, an air suction device, 21, a fixed end cover, 211, an end cover base, 212, an end cover body, 213, an end cover shaft hole, 214, an end cover internal thread, 215, an air outlet through hole, 216, a connecting flange, 217, an annular boss, 22, a first sealing ring, 23, a second sealing ring, 24, a sealing sleeve, 241, a sleeve section, 242, a sealing ring sleeve, 243, a sleeve section, 244, a sealing sleeve external thread, 245, an air inlet through hole, 3 and a discharge pipe.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Example (b):

referring to the attached drawings 1-6, the sealing device of the bagging machine comprises a bag opening clamping device 1 and an air suction device 2, wherein the bag opening clamping device 1 comprises a support frame 11 fixed on a frame of the bagging machine, an air cylinder 12 fixed on the support frame 11 and a clamping ring 13 fixed on an air cylinder guide rod of the air cylinder 12, the clamping ring 13 is of a semi-annular structure, the inner diameter of the clamping ring is the same as the outer diameter of a discharge pipe 3, the bag opening clamping devices 1 are symmetrically arranged on two sides of the discharge pipe 3, and an elastic gasket 14 is bonded on the inner wall of the clamping ring 13. After the automatic bagging mechanism sleeves the valve bag on the discharge pipe 3 during working, the bag opening clamping device 1 can automatically start the air cylinder 12 and drive the clamping ring 13 to clamp the bag opening and seal the inside and the outside of the valve bag, so that the low efficiency of the air suction device in sucking air in the bag due to the escape of dust or large gaps is avoided. By providing the resilient gasket 14, the bag mouth can be clamped more effectively, and the problem of poor sealing due to rigid connection can be avoided.

The air suction device 2 comprises a fixed end cover 21, a first sealing ring 22, a second sealing ring 23 and a sealing sleeve 24, wherein the fixed end cover 21 comprises an end cover base 211 and an end cover body 212 with a cylindrical hollow structure, an end cover shaft hole 213 is formed in the center of the end cover base 211, an end cover internal thread 214 is formed in the inner circumference of the end cover body 212, an air outlet through hole 215 penetrating through the side wall of the end cover body 212 is formed in the end cover body 212 close to the end cover base 211, the air outlet through hole 215 is communicated with air suction equipment, the air suction equipment is communicated with dust collection equipment, the inner diameter of the end cover shaft hole 213 is identical to the outer diameter of the discharge pipe 3, a connecting flange 216 is integrally formed on the end cover base 211, and the fixed end cover 21 is fixed on a bagging machine. The end cover base 21 can be conveniently disassembled and maintained through the connecting flange 216.

The sealing sleeve 24 is sleeved on the outer wall of the discharge pipe 3 and comprises a sleeve section 241, a sealing ring sleeve 242 and a sleeve section 243 which are integrally formed, the inner diameters of the sleeve section 241, the sealing ring sleeve 242 and the sleeve section 243 are the same as the outer diameter of the discharge pipe 3, a sealing sleeve external thread 244 corresponding to the end cover internal thread 214 is arranged on the outer wall of the sleeve section 241, the outer wall of the sleeve section 243 close to the end face is conical, an air inlet through hole 245 penetrating through the sleeve section 241, the sealing ring sleeve 242 and the sleeve section 243 is axially arranged on the wall of the sealing sleeve 24, and the sleeve section 241 is in threaded connection with the end cover body 212. The fixed end cover 21 is connected with the sealing sleeve 24 through threads, and the air inlet through holes 245 are formed in a plurality of numbers and are uniformly distributed on the sealing sleeve 24. The outer wall of the sleeve section 243 close to the end surface is conical and is uniformly provided with a plurality of air inlet through holes 245, so that the air inlet area of the air inlet through holes can be increased, and the air inlet efficiency of the air inlet through holes 245 is improved.

The first sealing ring 22 is sleeved on the outer wall of the discharge pipe 3 between the end cover base 211 and the sleeve section 241, the inner diameter of the first sealing ring 22 is the same as the outer diameter of the discharge pipe 3, and in order to avoid the first sealing ring 22 blocking the air inlet through hole 245, the outer diameter of the first sealing ring 22 is smaller than the length from the lower edge of the air inlet through hole 245 to the axis of the sealing sleeve 24. The second sealing ring 23 is sleeved on the outer wall of the sleeve section 241 between the sealing ring sleeve 242 and the end cover body 212, and the inner diameter of the second sealing ring 23 is the same as the outer diameter of the sleeve section 241. By arranging the first sealing ring 22 and the second sealing ring 23, when the air suction device works, the channel formed by the air inlet through hole 245 and the air outlet through hole 215 can be sealed with the outside, and the one-way circulation channel for dust and air in the valve bag to enter from the air inlet through hole 245 and to exit from the air outlet through hole 215 is realized.

When the suction device is installed and starts to work, that is, when the end cover body 212 is screwed to the sleeve section 241, the end surfaces of the two sides of the first sealing ring 22 respectively abut against the end cover base 211 and the sleeve section 241, and a gap exists between the end surface of the inner side of the end cover base 211 and the end surface of the sleeve section 241 and is communicated with the air outlet through hole 215. At the moment, air and dust enter the dust collecting device from the bag of the valve bag through the air inlet through hole 245, a gap between the end surface of the inner side of the end cover base 211 and the end surface of the sleeve section 241 and the air outlet through hole 215 under the suction force of the air suction device, so that the air and dust in the bag are discharged out of the bag, and the problem of efficiency reduction caused by overlarge internal pressure of the air and dust in the bag during material filling is avoided. In order to further increase the gap distance between the gaps to provide a larger suction force and to prevent clogging, the radial dimension of the first seal ring 22 needs to be increased, but the sealing capability is reduced after the radial dimension is increased, so that an annular boss 217 may be provided on the inner end surface of the end cover base 211, the outer diameter of the annular boss 217 is not more than the outer diameter of the first seal ring 22, and the annular boss 217 is integrally formed with the end cover base 211. The annular boss structure can ensure the sealing effect on the premise of not increasing the radial size of the first sealing ring 22.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a bagging machine closing device, includes sack clamping device and getter device, its characterized in that: the bag mouth clamping device comprises a support frame fixed on a frame of the bagging machine, an air cylinder fixed on the support frame and a clamping ring fixed on an air cylinder guide rod of the air cylinder, the clamping ring is of a semi-annular structure, the inner diameter of the clamping ring is the same as the outer diameter of the discharge pipe, and the bag mouth clamping device is symmetrically arranged on two sides of the discharge pipe; the air suction device comprises a fixed end cover, a first sealing ring, a second sealing ring and a sealing sleeve, the fixed end cover comprises an end cover base and an end cover body with a cylindrical hollow structure, an end cover shaft hole is formed in the center of the end cover base, an inner circumference of the end cover body is provided with an inner end cover thread, an air outlet through hole penetrating through the side wall of the end cover body is formed in the end cover body close to the end cover base, the inner diameter of the end cover shaft hole is the same as the outer diameter of the discharging pipe, and the fixed end cover is fixed on the frame of the bagging machine and sleeved on the outer wall of the discharging pipe through the end cover; the sealing sleeve is sleeved on the outer wall of the discharge pipe and comprises a sleeve section, a sealing ring sleeve and a sleeve section which are integrally formed, the inner diameters of the sleeve section, the sealing ring sleeve and the sleeve section are all the same as the outer diameter of the discharge pipe, sealing sleeve external threads corresponding to the internal threads of the end cover are arranged on the outer wall of the sleeve section, which is close to the end face, is in a conical shape, an air inlet through hole which penetrates through the sleeve section, the sealing ring sleeve and the sleeve section is axially arranged on the wall of the sealing sleeve, and the sleeve section is in threaded connection with the end cover body; the first sealing ring is sleeved on the outer wall of the discharge pipe between the end cover base and one section of the sleeve, the inner diameter of the first sealing ring is the same as the outer diameter of the discharge pipe, and the outer diameter value of the first sealing ring is smaller than the length from the lower edge of the air inlet through hole to the axis of the sealing sleeve; the second sealing ring is sleeved on the outer wall of the section of the sleeve between the sealing ring sleeve and the end cover body, and the inner diameter of the second sealing ring is the same as the outer diameter of the section of the sleeve; when the end cover body is screwed on the sleeve section in a threaded manner, the end surfaces of the two sides of the first sealing ring respectively prop against the end cover base and the sleeve section, and a gap exists between the end surface of the inner side of the end cover base and the end surface of the sleeve section and is communicated with the air outlet through hole.

2. The bagging machine sealing device of claim 1, wherein: the end cover base is integrally provided with a connecting flange, and the fixed end cover is fixed on the bagging machine frame through the connecting flange.

3. The bagging machine sealing device of claim 2, wherein: an annular boss is arranged on the end face of the inner side of the end cover base, and the outer diameter of the annular boss is smaller than or equal to that of the first sealing ring.

4. A bagging machine sealing device according to claim 3, wherein: an elastic gasket is fixed on the inner wall of the clamping ring.

5. The bagging machine sealing device of claim 4, wherein: the air inlet through holes are formed in a plurality of positions and are uniformly distributed on the sealing sleeve.