CN114379869A

CN114379869A - Packaging machine for filling small bags into large bags

Info

Publication number: CN114379869A
Application number: CN202011129820.2A
Authority: CN
Inventors: 娄国平; 何一波; 黄秀峰
Original assignee: Shanghai Jinwe Packaging Machine Co ltd
Current assignee: Shanghai Jinwe Packaging Machine Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2022-04-22
Anticipated expiration: 2040-10-21
Also published as: CN114379869B

Abstract

The invention relates to the technical field of packaging machinery, and discloses packaging machinery for filling small bags into large bags. In order to solve the problem of automatically filling small bags into large bags, the invention provides the following technical scheme. The method is characterized in that: the method comprises the following steps: the device comprises a rack (1), a conveyor belt device, a stacking arrangement system and a circuit system; the front end of the conveying belt device is connected with the small bag (2), and the rear end of the conveying belt device is positioned on one side of the upper part of the stacking arrangement system; the big bag (3) is positioned below the stacking arrangement system; the stacking arrangement system comprises: an arrangement enclosure frame (4), a first bracket device and a second bracket device; the two bracket devices are symmetrically arranged; each of the cradle devices comprises: the supporting plate (6), the telescopic mechanism and the up-and-down action mechanism; the arrangement surrounding frame (4) is symmetrically provided with avoidance structures (4a) for the supporting plate (6) to enter and exit and move up and down. The beneficial effects are that: a plurality of small bags can be automatically stacked in order and placed in the big bag.

Description

Packaging machine for filling small bags into large bags

Technical Field

The invention relates to the technical field of packaging materials, in particular to a packaging machine for filling small bags into large bags.

Background

In a factory, products are often required to be filled into small bags, then a plurality of small bags are filled into a big bag, and then the big bag is put into a warehouse.

In the existing packaging technology, the operation process is as follows: on the production line, after the products are packed into small bags, workers pack a specified number of small bags into a big bag.

Therefore, the labor intensity of workers is high, the used labor is large, the efficiency is low, and the cost is high. Therefore, the related enterprises expect: the operation of filling small bags into large bags can be automated.

Disclosure of Invention

The existing packaging technology is characterized in that the small bag is packaged into the big bag manually, and the automatic operation cannot be carried out.

In order to solve the problem that the small bags can not be filled into the big bags for automatic operation, the invention provides the following technical scheme.

1. A packaging machine for filling a sachet into a sachet, comprising: the device comprises a rack, a transmission belt device, a superposition arrangement system and a circuit system; the circuit system comprises: a detection circuit, a control circuit, and a power supply circuit; the front end of the conveying belt device is connected with the small bags, and the rear end of the conveying belt device is positioned on one side of the upper part of the stacking arrangement system; the big bag is positioned below the stacking arrangement system;

the stacking arrangement system comprises: the arrangement enclosing frame, the first bracket device and the second bracket device; the two bracket devices are symmetrically arranged;

each of the cradle devices comprises: the device comprises a supporting plate, a telescopic mechanism and an up-and-down action mechanism;

the telescopic mechanism comprises a telescopic machine body and a telescopic end; the telescopic end is fixedly connected with the supporting plate;

the up-down action mechanism comprises an up-down mechanism body and an up-down movement end;

the telescopic machine body of the telescopic mechanism is fixedly connected with the up-and-down motion end of the up-and-down motion mechanism;

the arrangement surrounding frame is symmetrically provided with an avoidance structure; the avoidance structure comprises: the support plate enters the entering avoiding structure of the arranging and surrounding frame, the support plate exits the exiting avoiding structure of the arranging and surrounding frame, and the support plate moves up and down to avoid the structure.

2. The supporting plate comprises: the device comprises a plate-shaped supporting plate main body and an L-shaped connecting bracket, wherein the plate-shaped supporting plate main body is horizontally arranged;

the telescopic mechanism comprises: an air compressor and a telescopic cylinder; the telescopic cylinder comprises a cylinder body and a cylinder telescopic end; a compressed gas output interface of the air compressor is connected with a gas circuit of the telescopic cylinder through a gas pipe;

the telescopic end of the telescopic cylinder is fixedly connected with the supporting plate main body through an L-shaped connecting bracket;

the arrangement enclosing frame is a rectangular structure body formed by a front plate, a rear plate, a left plate and a right plate, and the upper end of the front plate is lower than the upper ends of the other three plates; the avoiding structures of the arrangement enclosing frame are symmetrically arranged, and each side of the avoiding structures is of an I-shaped hollow structure; further, the upper side of the I-shaped hollow structure is a transverse hollow structure, the middle of the I-shaped hollow structure is a vertical hollow structure, the lower side of the I-shaped hollow structure is a transverse hollow structure, and the three hollow structures are communicated in a hollow way; the arrangement enclosure frame is fixedly connected with the rack, or the arrangement enclosure frame is fixedly connected with the rack through an enclosure frame bracket;

the up-down action mechanism is a linear module and comprises a linear module body main body and a sliding block; the linear module is fixedly connected with the rack, or the linear module is fixedly connected with the rack through a connecting part; the linear module is set to be in a vertical state, namely the slide block moves up and down;

the cylinder body of the telescopic cylinder is fixedly connected with the sliding block;

the circuit system is electrically connected with the air compressor through an electric wire; the circuit system is electrically connected with the telescopic cylinder through an electric wire; the circuit system is electrically connected with the linear module through an electric wire.

The invention has the beneficial effects that:

for pouches coming from a production line and containing product, a target number of pouches can be stacked in order and placed into a large bag by means of the packaging machine of the present invention. The subsequent operation can be partially or completely completed by an automatic method, and therefore, the invention provides a plurality of further technical schemes for selecting and combining.

Drawings

FIG. 1 is a perspective view of an alignment enclosure;

FIG. 2 is a simplified view of the alignment enclosure and pallet;

FIG. 3 is a perspective view of FIG. 2 with the pallet on the left omitted;

FIG. 4 is a schematic view of the right side pallet entering the alignment enclosure;

FIG. 5 is a schematic illustration of the right side pallet of FIG. 4 lowered one grid;

FIG. 6 is a schematic illustration of the right side pallet of FIG. 4 lowered two compartments;

FIG. 7 is a schematic illustration of the right side pallet of FIG. 4 lowered three compartments;

FIG. 8 is a schematic illustration of the right side pallet of FIG. 4 lowered four compartments;

FIG. 9 is a schematic drawing of the right side pallet of FIG. 8 drawn to the right;

FIG. 10 is a schematic view of an arrangement of enclosure frames, pallets, linear modules and telescopic cylinders;

FIG. 11 is one of the schematic views of the deployment mechanism;

FIG. 12 is a second schematic view of the deployment mechanism;

fig. 13 is one of the schematic perspective views of the action of the opening mechanism 12;

fig. 14 is a second perspective view of the operation of the opening mechanism 12;

fig. 15 is a third perspective view of the actuation of the opening mechanism 12;

fig. 16 is a fourth perspective view showing the operation of the opening mechanism 12;

fig. 17 is a fifth perspective view showing the operation of the opening mechanism 12;

fig. 18 is a sixth perspective view illustrating the operation of the opening mechanism 12;

fig. 19 is a seventh perspective view showing the operation of the opening mechanism 12;

fig. 20 is an eighth schematic perspective view of the actuation of the opening mechanism 12;

FIG. 21 is a ninth schematic perspective view of the actuation of the opening mechanism 12;

FIG. 22 is one of the schematic views of the clamping mechanism showing the big bag not yet clamped;

FIG. 23 is an enlarged fragmentary view taken at I in FIG. 22, at a 1.5: 1 magnification;

FIG. 24 is a left side view of FIG. 23;

FIG. 25 is a schematic view of the common connecting tab of FIG. 23;

FIG. 26 is a left side view of FIG. 25;

FIG. 27 is a top view of FIG. 25;

FIG. 28 is a schematic view of the clamp cylinder of FIG. 23 with the telescoping end extended downward;

FIG. 29 is a schematic view of the lower side of the necking cylinder of FIG. 28 extended;

FIG. 30 is a second schematic view of the operation of the clamping mechanism, showing the big bag clamped;

FIG. 31 is a third schematic view of the gripper mechanism showing the big bag having been closed;

FIG. 32 is a schematic view of the action of the beater mechanism.

FIG. 33 is one of the operational schematics of the automatic big bag refill mechanism;

FIG. 34 is a second schematic view of the operation of the automatic big bag replenishment mechanism;

FIG. 35 is the schematic view of FIG. 33 with the big bag removed;

fig. 36 is a schematic view of fig. 34 with the big bag removed.

FIG. 37 is a schematic view of a carrier device;

FIG. 38 is one of the schematic views of a clasping apparatus;

FIG. 39 is a second schematic view of a clasping apparatus;

fig. 40 is a schematic view of pouch transport to the array enclosure.

Description of reference numerals in the figures

A frame (1); a pouch (2); a big bag (3); an arrangement enclosure frame (4); a front plate (4-1); a rear plate (4-2); a left plate (4-3); a right plate (4-4); an avoidance structure (4 a); a pallet (6); a linear module (8-1); a telescopic cylinder (11); an opening lever separating mechanism (16); an upper suction nozzle (17); an upper suction slide table (18); an updraught bracket (23); a suction nozzle (19); a downdraft cylinder (24); a suction support (25); a servo motor (26); a right-angle speed reducer (27); a mounting bar (28); a first spreader lever (29); a second spreader bar (29-a); a first link (30); a second link (30-a); a turning block (31); a bag opening cylinder (32); a left side link (33); a right side connector (34); a common connection piece (35); a clamping piece (36); a clamp cylinder (37); a closing cylinder (38); a patting block (40); a flapping cylinder (41); a big bag stock platform (43); a big bag stacking platform (44); a catch bar (45); a mounting bracket (47); a trolley (50); an upper rail (51); a lower rail (52); a servo motor (53); a transmission belt (54); a transmission block (55), a wheel (56); a trolley lifting support (57); a bag holding plate (58); a clamp cylinder (59); a left clamp (60); a right clamp (60-1); a left link (61); a right link (61-1); a clamp rotating block (62); a trolley lifting cylinder (66); a clamp mounting plate (68); a belt conveying mechanism (81); an acceleration conveyor belt mechanism (82); a mounting plate (90);

the center of the circle (A) is rotated.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Detailed Description

Therefore, the labor intensity of workers is high, the used labor is large, the efficiency is low, and the cost is high. In order to solve the problems, the invention provides a technical scheme.

Next, the general technical solution of the present invention will be described.

The invention relates to a general technical scheme. A packaging machine for filling a sachet into a sachet, comprising: the device comprises a frame 1, a transmission belt device, a superposition arrangement system and a circuit system; the circuit system comprises: a detection circuit, a control circuit, and a power supply circuit; the front end of the conveying belt device is connected with the small bags 2, and the rear end of the conveying belt device is positioned on one side of the upper part of the stacking arrangement system; the big bag 3 is positioned below the stacking arrangement system;

the stacking arrangement system comprises: the arrangement enclosing frame 4, a first bracket device and a second bracket device; the two bracket devices are symmetrically arranged;

each of the cradle devices comprises: the supporting plate 6, a telescopic mechanism and an up-and-down action mechanism;

the telescopic mechanism comprises a telescopic machine body and a telescopic end; the telescopic end is fixedly connected with the supporting plate 6;

the arrangement surrounding frame 4 is symmetrically provided with avoidance structures 4 a; the avoidance structure 4a includes: an entering avoiding structure for the supporting plate to enter the arranging and surrounding frame 4, a quitting avoiding structure for the supporting plate to quit the arranging and surrounding frame 4, and an up-and-down avoiding structure for the supporting plate 6 to move up and down.

The above is the description of the general technical scheme of the invention; the general technical solution of the invention is explained and explained below.

1. In the present invention, the circuitry comprises: the detection circuit, the control circuit, and the power supply circuit.

a. The detection circuit can be used for detecting a work object, such as the current situation of a small bag, the current situation of a big bag and the like; the detection circuit can also be used for detecting the states of various mechanisms and parts of the packaging machine according to the requirement. The detection circuit usually uses a sensor or a probe and is matched with a subsequent related circuit for detection; sometimes, a pair of infrared diodes (infrared light emitting diode and infrared receiving diode) is used, and then a subsequent circuit is used to know the condition of the object, for example, whether the object exists at the detection position or whether the object passes through at the detection position can be known.

b. The control circuit can be an intelligent circuit, such as a programmable controller, an industrial computer, a small computer, and the like. According to the information fed back by the detection circuit and the software program of the control circuit, a command is sent to the relevant action mechanism and component to generate corresponding action.

2. The conveyor belt device is used for conveying the small bags 2; description of the drawings: the pouch is already filled with product. When the pouch 2 is brought to the end of the rear end of the conveyor means, the pouch 2 falls into the aligning enclosure 4.

The so-called big bag 3 is located below the stacking arrangement, i.e. the big bag 3 is located below the arrangement enclosure 4.

3. The small bag 2 falls down and directly falls into the big bag in the prior art, so that the small bag turns over, is disorderly overlapped, or even is mutually clamped, and the like. In the invention, the small bags 2 are orderly stacked in the arrangement surrounding frame 4 one by one, and after the number of the small bags 2 is over, the lower part of the arrangement surrounding frame 4 is opened and the small bags are placed into the big bag 3 which is already open and waiting.

4. The arrangement surrounding frame 4 is symmetrically provided with avoidance structures 4 a; the avoidance structure 4a includes: an entering avoiding structure for the supporting plate to enter the arranging and surrounding frame 4, a quitting avoiding structure for the supporting plate to quit the arranging and surrounding frame 4, and an up-and-down avoiding structure for the supporting plate 6 to move up and down.

The above description is further illustrated and explained as follows.

Fig. 1 is a schematic perspective view of the arrangement surrounding frame 4, and the arrangement surrounding frame 4 in fig. 1 is symmetrically provided with an i-shaped hollow avoiding structure.

FIG. 2 is a schematic and simplified view of the alignment enclosure 4 and pallet; in fig. 2, the pallet 6 includes: a plate-shaped supporting plate main body which is horizontally arranged, and an L-shaped connecting bracket. When the device works, the left supporting plate 6 and the right supporting plate 6 alternately enter the arrangement enclosing frame 4.

Note: in this patent document, the terms "left" and "right" are used relative to the specific parts and figures; in other words, the term left-right does not apply to the entire packaging machine of the present invention.

Fig. 3 is a perspective view of fig. 2, in which the left-hand pallet 6 is omitted.

The operation of filling five small bags into one large bag will be described below.

a. FIG. 4 is a schematic view of the right side pallet 6 entering the alignment box 4; the right pallet 6 is pushed horizontally into the alignment enclosure 4 from right to left by the telescoping mechanism. The telescoping mechanism is not shown. After the right pallet 6 has entered the array enclosure 4, the first sachet then falls from above.

b. FIG. 5 is a schematic view of the right side pallet 6 of FIG. 4 lowered one grid; the second pouch then falls from above. The lowering of the right pallet 6 is caused by the up-down action mechanism, the distance of the "one grid" being adapted to the thickness of the pouch.

c. FIG. 6 is a schematic view of the right side pallet 6 of FIG. 4 lowered two compartments; subsequently, the third pouch falls from above.

d. FIG. 7 is a schematic illustration of the right side pallet 6 of FIG. 4, after three compartments have been lowered; subsequently, the fourth pouch falls from above.

e. FIG. 8 is a schematic illustration of the right side pallet 6 of FIG. 4 lowered four compartments; subsequently, a fifth pouch falls from above.

Under the above conditions, the five small bags fall down one after another and can be orderly stacked in the arrangement surrounding frame 4. The reason why the small bags can be stacked orderly is that the small bags are limited by the arrangement of the enclosing frames 4 from front to back and from left to right, and the height drop of the small bags falling from the upper surface is small each time.

f. FIG. 9 is a schematic view of the right blade 6 of FIG. 8 drawn out to the right; the right supporting plate is pulled downwards and pulled out rightwards from left to right in the telescopic mechanism. The five pouches then fall together into the big bag. Meanwhile, the left supporting plate enters the arrangement surrounding frame 4 from left to right through the upper part of the left avoiding structure, and a new round of small bags enters.

Then, the right pallet is pulled by the vertical movement mechanism to rise to the initial height, and waits for a command from the control circuit.

The above describes the case where the small bag is filled with the large bag.

Opening the upper end opening of the big bag and placing the big bag with the opened upper end under the arrangement surrounding frame 4, which can be operated by workers; it is preferable if the further technical solutions of the invention described later are selected and combined to be carried out by a machine. The subsequent more operations can be automatically completed by the packaging machine. See the description below for details.

5. The up-down action mechanism, whether the mechanism of the electric principle or the mechanism of the pneumatic principle, comprises a machine body and a moving end of the mechanism; the space position of the machine body is not moved, and the moving end moves upwards or downwards, so that the telescopic machine body and the telescopic end in the telescopic mechanism and the supporting plate 6 are driven to move upwards or downwards.

The general technical solutions of the present invention have been described above, and have been illustrated and explained. Further aspects of the invention are described, illustrated and explained below.

Further technical scheme 1.

Technical solution description. The conveyor belt device include: a belt conveying mechanism 81 disposed at the front and an acceleration belt conveying mechanism 82 disposed at the rear; the conveying speed of the belt mechanism 81 is increased to the conveying speed of the belt mechanism 82, which is higher.

Technical solution description and explanation. Without the acceleration conveyor mechanism 82, if the speed of the conveyor mechanism is relatively slow, that is, the speed of the conveyor is relatively slow, there may be a problem that the pouch sometimes rests at the upper side port of the arrangement enclosure frame due to small inertia, that is, the pouch hangs, and thus a failure is caused. Or, the small bag can not fall down at four corners in parallel because the speed of the conveying belt is low and the inertia is small. In order to solve the problems, an accelerating conveying belt mechanism 82 is added, so that the forward inertia of the small bags is increased, the suspension fault is avoided, and four corners can drop in parallel and the small bags are stacked orderly. The foregoing is understood in conjunction with fig. 40. Whether need add and accelerate transmission band mechanism 82, need be according to actual conditions and decide, if transmission band mechanism 81's transmission speed is very fast, the phenomenon that the pouch does not appear hanging, and the parallel tenesmus in four corners moreover superposes neatly, then can not add and accelerate transmission band mechanism 82.

Further technical scheme 2.

This will be understood with reference to fig. 1, 2, 3 and 10.

FIG. 1 is a perspective view of an alignment enclosure 4; FIG. 2 is a simplified view of the alignment enclosure 4 and pallet; fig. 3 is a perspective view of fig. 2 with the left-hand pallet 6 omitted; fig. 10 is a schematic view of the arrangement enclosure frame 4, the pallet 6, the linear module 8-1, and the telescopic cylinder 11.

The supporting plate 6 comprises: the device comprises a plate-shaped supporting plate main body and an L-shaped connecting bracket, wherein the plate-shaped supporting plate main body is horizontally arranged; the telescopic mechanism comprises: an air compressor and telescopic cylinder 11; the telescopic cylinder comprises a cylinder body and a cylinder telescopic end; the compressed gas output interface of the air compressor is connected with the air passage of the telescopic cylinder through an air pipe.

The circuit system is electrically connected with the air compressor through an electric wire; the circuit system is electrically connected with the telescopic cylinder through an electric wire. Description of the drawings: when the telescopic cylinder 11 receives a stretching or contracting command of the circuit system, the telescopic end of the cylinder generates stretching or contracting action, so that the supporting plate 6 is driven to horizontally stretch or contract.

The telescopic end of the telescopic cylinder is fixedly connected with the supporting plate main body through an L-shaped connecting support.

In fig. 10, the telescopic end of the cylinder on the left side is in an extended state, so that the supporting plate 6 is also in an extended state, i.e. the supporting plate 6 is located inside the arrangement enclosure frame 4; the right cylinder end is in a contracted state, so that the supporting plate 6 is also in a contracted state, namely the supporting plate 6 is positioned outside the arrangement surrounding frame 4.

The arrangement surrounding frame 4 is a rectangular structure body formed by a front plate 4-1, a rear plate 4-2, a left plate 4-3 and a right plate 4-4, and the upper end of the front plate 4-1 is lower than the upper ends of the other three plates. Description of the drawings: the upper end of the front plate 4-1 is shorter than the upper ends of the other three plates, and the advantages are that: when the small bags pass over the upper end of the front plate 4-1 by means of inertia and enter the arrangement enclosure frame 4, the left plate 4-3 and the right plate 4-4 limit the small bags from left to right without deviating direction, the rear plate 4-2 collides with the small bags, and finally the small bags are better dropped into the arrangement enclosure frame 4.

The avoiding structures of the arrangement enclosing frame 4 are symmetrically arranged, and each side of the avoiding structures is of an I-shaped hollow structure; further, the upper side of the I-shaped hollow structure is a transverse hollow structure, the middle of the I-shaped hollow structure is a vertical hollow structure, the lower side of the I-shaped hollow structure is a transverse hollow structure, and the three hollow structures are communicated in a hollow way; the arrangement surrounding frame 4 is fixedly connected with the rack 1, or the arrangement surrounding frame 4 is fixedly connected with the rack 1 through a surrounding frame support.

In the above, the i-shaped hollow structure is understood with reference to fig. 1; the upper end of the front plate 4-1 is shorter than the upper ends of the other three plates, as will be understood with reference to fig. 40.

Further technical scheme 3.

Technical solution description. The up-down action mechanism is a linear module 8-1, which comprises a main body of a linear module body and a slide block; the linear module 8-1 is fixedly connected with the rack 1, or the linear module 8-1 is fixedly connected with the rack 1 through a connecting part; the linear module 8-1 is set to be in a vertical state, namely the slide block moves up and down; the telescopic machine body of the telescopic mechanism is fixedly connected with the sliding block; the circuit system is electrically connected with the linear module 8-1 through an electric wire. This will be explained with reference to fig. 10. Fig. 10 is a schematic view of the arrangement enclosure frame 4, the pallet 6, the linear module 8-1, and the telescopic cylinder 11.

In fig. 10, the telescopic mechanism is a telescopic cylinder. The telescopic end of the telescopic cylinder is fixedly connected with the supporting plate main body through an L-shaped connecting support. The telescopic cylinder 11 is fixedly connected with the sliding block. When the linear module 8-1 receives the ascending or descending command of the circuit system, the sliding block moves upwards or downwards on the main body of the linear module body, so that the telescopic cylinder and the supporting plate 6 are driven to move upwards or downwards together.

The telescopic mechanism can be a telescopic cylinder or other mechanisms, such as a horizontally arranged telescopic mechanism adopting a linear module component; as a linear module of the telescopic mechanism, a slide block is fixedly connected with a supporting plate 6. When the slide block on the linear module component moves horizontally, namely moves horizontally in a telescopic way, the supporting plate 6 can be driven to move horizontally into or out of the arrangement surrounding frame 4.

Note: in the patent document of the present invention, the linear module is also called a linear sliding table, which is called a sliding table for short; which comprises a machine body and a slide block. Under the control of the circuit, the slide block moves linearly relative to the machine body.

Example one

In the present embodiment, the case of the opening mechanism is described; the functions and functions of the opening mechanism include: the big bag 3 is sucked up, spread and placed to the lower side of the arrangement enclosure frame 4. Hereinafter, the structure and composition of the opening mechanism will be described.

The packaging machine comprises: an opening mechanism for sucking, opening and placing the big bag 3 to the lower side of the arrangement surrounding frame 4; the opening mechanism comprises: an upper suction separating mechanism, a lower suction separating mechanism, an opening rod separating mechanism 16, an air compressor, and a vacuum pump;

the upper suction separation mechanism comprises: an upper suction nozzle 17, an upper suction action component and an upper suction valve; the upper suction action assembly comprises an upper suction sliding table 18 and an upper suction bracket 23; the number of the upper suction nozzles 17 is more than four, and the upper suction nozzles are arranged on the upper suction bracket 23; the upper suction bracket 23 is fixedly connected with a slide block in the upper suction sliding table 18; the air suction end of the vacuum pump is connected with one end of the upper air suction valve through an air pipe air passage; the other end of the upper suction valve is connected with the upper suction nozzle 17 through an air pipe air passage; an upper suction valve and an upper suction sliding table 18 which are respectively electrically connected with the circuit system through electric wires;

the lower suction and separation mechanism comprises: a downdraft suction nozzle 19, a downdraft action component and a downdraft air valve; the downdraft action assembly comprises a downdraft air cylinder 24 and a downdraft bracket 25; the number of the lower suction nozzles 19 is more than two, and the lower suction nozzles are arranged on the lower suction bracket 25; the lower suction support 25 is fixedly connected with the telescopic end of the lower suction cylinder 24; the air suction end of the vacuum pump is connected with one end of the lower air suction valve through an air pipe air passage; the other end of the lower air suction valve is connected with the lower suction nozzle 19 through an air pipe air passage; the downdraft air cylinder 24 is connected with the output end of the air compressor through an air pipe air path; a lower suction valve and a lower suction cylinder 24 which are electrically connected to the circuit system through electric wires, respectively;

the spreader bar mechanism 16 includes: a servo motor 26, a right-angle reducer 27, a mounting rod 28, and an opening rod assembly; the servo motor and the right-angle reducer are both fixedly connected with the frame 1; an output shaft of the servo motor is in transmission connection with the right-angle reducer; the output shaft of the right-angle speed reducer is coaxially and fixedly connected with the mounting rod 28;

the spreader bar assembly comprising: a first opening bar 29, a second opening bar 29-a, a first link 30, a second link 30-a, a mounting plate 90, a turning block 31, and a bag opening cylinder 32;

the middle part of the rotating block 31 is rotatably connected with the mounting plate 90, and the lower part of the rotating block is rotatably connected with one end of the first connecting rod 30; the other end of the first link 30 is rotatably connected to the upper portion of the first spreader lever 29; the upper end of the first spreader lever 29 is rotatably connected to the mounting plate 90;

the upper part of the rotating block 31 is rotatably connected with one end of the second connecting rod 30-a; the other end of the second connecting rod 30-a is rotatably connected with the upper part of the second opening bar 29-a; the upper end of the second spreader bar 29-a is rotatably connected to the mounting plate 90;

the bag supporting cylinder 32 is fixedly connected with the mounting plate 90, and the telescopic end of the bag supporting cylinder is rotatably connected with the upper part of the rotating block 31; the bag supporting cylinder 32 is connected with the output end of the air compressor through an air pipe air passage;

the servo motor 26 and the bag opening cylinder 32 are respectively electrically connected with the circuit system through electric wires.

The structure and composition of the opening mechanism are described above; the opening mechanism will be explained and explained below. The description will be made with reference to fig. 11 and 12. FIG. 11 is one of the schematic views of the deployment mechanism; fig. 12 is a second schematic view of the deployment mechanism.

Referring to fig. 11, the following is explained and illustrated.

In the present embodiment, the suction nozzles 17 have four in total. When the control circuit sends out relevant instructions, the slide block in the upper suction sliding table 18 slides upwards or downwards, so that the four upper suction nozzles 17 on the upper suction bracket 23 are driven to move upwards or downwards together. When the control circuit issues a relevant command, the upper suction valve is opened or closed, so that the upper suction nozzle 17 sucks air or stops sucking air.

In the present embodiment, the suck-down nozzles 19 are two in total. When the control circuit sends out relevant instructions, the telescopic end of the downdraft air cylinder 24 extends rightward or retracts leftward, so that the two downdraft suction nozzles 19 on the downdraft bracket 25 are driven to extend rightward or retract leftward together. When the control circuit issues a command, the lower air valve is opened or closed, so that the lower suction nozzle 19 sucks air or stops sucking air.

Referring to fig. 12, the following is explained and illustrated.

A. When the control circuit sends out relevant instructions, the servo motor 26 rotates forwards or backwards; the mounting rod 28 is rotated forward or backward at a desired speed by the deceleration of the right-angle reducer 27.

B. When the mounting rod 28 rotates forward or backward, the first opening rod 29, the second opening rod 29-a, the first link 30, the second link 30-a, the mounting plate 90, the rotating block 31, and the bag opening cylinder 32 are all rotated forward or backward. The spreader lever, reference numeral 29 in fig. 11, is rotated as indicated by the arrow, either clockwise or counterclockwise, within the desired range.

C. When the control circuit sends out a relevant instruction, the telescopic end of the bag opening cylinder 32 extends or retracts, so that the rotating block 31 rotates, the first connecting rod 30 and the second connecting rod 30-a are pulled, and finally the first opening rod 29 and the second opening rod 29-a are opened or retracted. First 29 and second 29-a spreader bars, shown in phantom in fig. 12; the first opening bar 29 and the second opening bar 29-a are contracted as shown by the solid lines in fig. 12.

The structure, composition and principle of action of the opening mechanism have been described, explained and illustrated. The operation of the opening mechanism in actual operation will be described below.

FIG. 13 is one of the schematic perspective views of the action of the opening mechanism; FIG. 14 is a second perspective view of the action of the opening mechanism; fig. 15 is a third perspective view of the action of the opening mechanism; FIG. 16 is a fourth perspective view of the action of the opening mechanism; FIG. 17 is a fifth perspective view of the action of the opening mechanism; FIG. 18 is a sixth schematic perspective view of the action of the opening mechanism; FIG. 19 is a seventh perspective view of the action of the opening mechanism; FIG. 20 is an eighth schematic perspective view of the action of the opening mechanism; fig. 21 is a ninth perspective view schematically showing the operation of the opening mechanism. The reference numbers in the above figures are: a big bag 3; an opening lever separating mechanism 16; an updraught suction nozzle 17; a suck-down suction nozzle 19; the first spreader lever 29.

Now, the following first to seventh explanations will be made with reference to fig. 13 to 21.

First, description will be made with reference to fig. 13.

The four suction nozzles 17 are positioned at high positions; two suction nozzles 19 are located at the left; the opening lever of the opening lever release mechanism 16 is stopped from rotating and is located at a high position.

Description of the drawings: fig. 13 to 21 are simplified in each drawing. In FIG. 13, the suck-up sub-mechanism is drawn with only the suck-up nozzle 17; the lower suction split mechanism only draws a lower suction nozzle 19; the spreader bar mechanism 16 is also treated in a simplified, schematic nature; similar processing is performed for the other figures.

Second, description will be made with reference to fig. 14.

The suction nozzle 17 is lowered from the state of fig. 13 to the state of fig. 14; when the lowering starts, the upper suction valve is opened to suck air into the upper suction nozzle 17, and the detection circuit detects the suction.

Further explanation is provided. The detection circuit can know the suction condition of the suction nozzle through air pressure change and air flow change. Also, the lowering or raising of the suction nozzle 17 is caused by the lowering or raising of the slider in the suction slide table 18, as will be understood with reference to fig. 11.

The four sucking nozzles 17 are synchronous from top to bottom; when the upward surface of the big bag 3 is touched, the upper suction nozzle 17 stops descending, and at this time, the big bag 3 is sucked by the four upper suction nozzles 17.

Further explanation is provided. Once the suction nozzle touches the big bag 3, the suction airflow is reduced, and the air pressure is changed; after the information sent by the detection circuit is obtained, the control circuit commands the sliding block to stop descending. Also, the suction support 23 is provided with a flexible support structure, which can better adapt to the current situation, including the changing height of the stack of big bags 3.

Third, description is made with reference to fig. 15.

When the four sucking-up suction nozzles 17 touch the big bag 3 at the same time, the big bag 3 is sucked; then, the slider in the upper suction slide table 18 is lifted up (as understood with reference to fig. 11), so that the four upper suction nozzles 17 are lifted up together with the big bag 3, as shown in fig. 15.

Fourth, description will be given with reference to fig. 16, 17, and 18.

After the four suction nozzles 17 are lifted up together with the big bag 3, the two suction nozzles 19 are protruded to the right below the big bag 3 and the suction nozzles 19 start sucking. As shown in fig. 16. Description of the drawings: the telescopic end of the lower suction cylinder 24 extends to the right, thereby bringing the two lower suction nozzles 19 of the lower suction bracket 25 together to extend to the right, as will be understood with reference to fig. 11.

Next, the four suction nozzles 17 are lowered together with the big bag 3, and the downward surface of the big bag 3 comes into contact with the suction nozzles 19 and stops being lowered, as shown in fig. 17. At this time, the downward surface of the big bag 3 is sucked by the two suck-down nozzles 19.

Then, the two suction nozzles 19 continue to suck the downward surface of the big bag 3 and keep the position unchanged; and the four suction nozzles 17 are raised to a certain height together with the upward side of the big bag 3 and cause the mouth of the big bag 3 to be pulled apart, see fig. 18.

Fifth, description will be made with reference to fig. 19.

The opening rod 29 in the opening rod separating mechanism rotates anticlockwise and is inserted into the opening of the big bag 3, and at the moment, the pair of opening rods are in a closed state; as shown in fig. 19.

Description of the drawings: referring to fig. 12, when the control circuit issues a relevant command, the servo motor 26 rotates in the forward direction, and the mounting rod 28 rotates in the forward direction at a required speed by the deceleration of the right-angle reducer 27, resulting in the following effects: the first opening bar 29, the second opening bar 29-a, the first link 30, the second link 30-a, the mounting plate 90, the turning block 31, and the pouch opening cylinder 32, which are uniformly rotated in the same direction, so that the opening bar 29 is rotated counterclockwise and inserted into the pouch opening of the large pouch 3.

Sixth, description will be given with reference to fig. 20.

The opening bars spread apart and hold the mouth of the big bag 3, see fig. 20. Next, the four suction nozzles 17 stop sucking air and return to the upper position; the two suction nozzles 19 stop sucking air and return to the left position.

Description of the drawings: referring to fig. 12, the expansion end of the bag expanding cylinder 32 retracts to the right, so that the rotating block 31 rotates clockwise, and the first opening rod 29 and the second opening rod 29-a are expanded, i.e. the pair of opening rods changes from the solid line state to the dotted line state.

Seventh, description is made with reference to fig. 21.

After the opening rod props up the mouth of the big bag 3, the opening rod rotates clockwise together with the big bag 3, see fig. 21. In this way, the big bag 3 is placed on the lower side of the arrangement enclosure 4 with the mouth of the big bag 3 facing upwards to receive the small bags 2 coming down from the arrangement enclosure 4.

Description of the drawings: referring to fig. 12, the servo motor 26 is rotated in the reverse direction, thereby rotating the opening lever 29 clockwise.

The above is a connection step performed sequentially from the first to the seventh.

After the big bag 3 is placed under the aligning enclosure 4, the worker can grasp the bag mouth to continue the following work. If, after the big bag 3 is placed under the arrangement enclosure 4, the following work continues the automation, the technical effect is better, and the following description is related.

Example two

Write to in the first embodiment above: after the big bag 3 is placed under the arrangement enclosing frame 4, the following work is carried out, and the technical effect is better if the automatic operation is continuously carried out. In the second embodiment, a specific mechanism for continuing the automated operation after the big bag 3 is placed under the arrangement enclosure 4 will be described.

The holding mechanism will be described below, which holds the big bag 3 in place. In other words, the holding operation of the big bag 3 which has been spread and has been sent to the lower side of the arrangement surrounding frame 4 is the task to be performed by the holding means.

Hereinafter, the structure and composition of the clamping mechanism will be described.

The packaging machine comprises: the holding mechanism is used for holding the big bag 3 which is spread in place;

the fixture, it sets up in the below of arranging and enclosing frame 4, it includes: the air compressor comprises a first clamping assembly, a second clamping assembly and an air compressor, wherein the first clamping assembly and the second clamping assembly are symmetrically arranged;

each clamping assembly comprises: the device comprises a left connecting piece 33, a right connecting piece 34, a common connecting piece 35, a clamping piece 36 provided with a left hole and a right hole, a clamping cylinder 37 and a closing cylinder 38;

the left connecting piece 33 and the right connecting piece 34 are arranged at the lower side of the arrangement surrounding frame 4;

the upper end of the common connecting piece 35 and the right hole of the clamping piece 36 are rotatably connected with the right connecting piece 34;

the upper end part of the closing cylinder 38 is rotatably connected with the left connecting piece 33, and the lower telescopic end of the closing cylinder is rotatably connected with the common connecting piece 35;

the upper part of the clamping cylinder 37 is rotationally connected with the left hole of the clamping sheet 36, and the lower telescopic end of the clamping cylinder is rotationally connected with the common connecting sheet 35;

the clamping cylinder 37 and the closing cylinder 38 are respectively connected with the air compressor through air pipes, and are respectively electrically connected with a circuit system through electric wires.

The structure and composition of the clamping mechanism are described above; the clamping mechanism is explained and explained below.

The description will be made with reference to fig. 22 to 31.

Fig. 22 is one of the schematic views of the operation of the clamping mechanism, showing the big bag not yet clamped by the clamping mechanism. Since this drawing is used only schematically, simplification and modification are performed in the drawing process of the drawing sheet, and the purpose of explaining the basic principle is to be achieved. Reference numeral 47 in fig. 22 is a mounting bracket; the upper surface of the mounting bracket bears the arrangement surrounding frame 4, and the lower part thereof is hoisted with the clamping mechanism. The mounting bracket is fixedly connected with the frame 1. The clamping mechanism is symmetrically provided with a first clamping component and a second clamping component; the first clamping assembly, which is labeled I and surrounded by a two-dot chain line circle, is a first clamping assembly.

FIG. 23 is an enlarged fragmentary view taken at I in FIG. 22, at a 1.5: 1 magnification; in other words, fig. 23 is a first clamping assembly, which includes: a left connecting piece 33, a right connecting piece 34, a common connecting piece 35, a clamping piece 36 with a left hole and a right hole, a clamping cylinder 37 and a closing cylinder 38.

Fig. 24 is a left side view of fig. 23.

Fig. 25 is a schematic view of the common connecting piece 35 in fig. 23.

Fig. 26 is a left side view of fig. 25.

Fig. 27 is a top view of fig. 25.

Fig. 28 is a view showing the grip cylinder 37 of fig. 23 after its telescopic end is extended downward. After the telescopic end of the clamping cylinder 37 extends downwards, the clamping piece 36 rotates clockwise around point a, and the state in fig. 23 is changed into the state in fig. 28; reference a is the center of the rotation. Description of the drawings: in addition to fig. 28, reference character a is a center of rotation in fig. 23 and 29.

FIG. 29 is a schematic view of FIG. 28 with the lower side of the necking cylinder 38 extended; the stretching out of the lower side of the closing-in cylinder 38 is the stretching out of the telescopic end of the closing-in cylinder 38, and the stretching out causes the common connecting sheet 35, the clamping sheet 36 and the clamping cylinder 37 to rotate together counterclockwise, and the center of the rotation circle is point a.

In fig. 22, the big bag 3 is fed by the opening mechanism; the opening mechanism sends the big bag 3 out, which is detailed in the first embodiment. The big bag 3 in fig. 22 is not yet held by the holding means.

Fig. 30 is a second schematic view of the operation of the clamping mechanism, showing the big bag already clamped. Due to the two symmetrically arranged clamping cylinders 37, the telescopic ends of the two cylinders extend downwards at the same time, which causes the symmetrically arranged clamping pieces 36 to rotate at the same time, so that the two clamping pieces 36 clamp the big bag 3 at the same time.

The relevant successive action conditions are: 1. the open empty big bag is sent to the lower side of the arrangement surrounding frame 4, note: the relevant action principle is described in detail in the first embodiment. 2. The two holding pieces of the holding mechanism hold the big bag 3, and then the opening bar 29 in the opening bar separating mechanism is moved away. 3. The small bag in the arrangement surrounding frame 4 falls into the big bag. 4. The clamping mechanism carries out the bag opening closing operation.

The bag mouth closing operation is completed by the telescopic end of the closing cylinder 38 through the extending action, namely, the common connecting sheet 35, the clamping sheet 36 and the clamping cylinder 37 rotate together, and the rotation is shown as fig. 31 in fig. 30; during the rotation, the two holding pieces 36 always hold the big bag. Fig. 31 is a third schematic view of the gripper mechanism showing the big bag having been closed.

EXAMPLE III

In the second embodiment, if the big bag is of a proper size or is relatively wide, the small bags can be arranged in the big bag. If the big bag is of a relatively compact size, the individual sachets may not be neatly arranged, and for this reason, the sachets may be brought into a neatly arranged state by beating several times from the bottom of the big bag after the sachets are loaded into the big bag, as will be described below.

Flapping is performed by using a flapping mechanism. Beater mechanism includes: a beater block 40, a beater cylinder 41, and an air compressor.

See fig. 32. FIG. 32 is a schematic view of the action of the beater mechanism. The beating block 40 and the beating cylinder 41 are positioned at the lower side of the clamping mechanism; the beating block 40 is arranged at the upper part, and the beating cylinder 41 is arranged at the lower part; the beating block is fixedly connected with the telescopic end of the beating cylinder; the body of the flapping cylinder is fixedly connected with the frame 1 through a bracket. The flapping air cylinder is connected with an air passage of the air compressor through an air pipe; the air compressor obtains power electric energy from the circuit system through an electric wire; and the wiring end of the flapping cylinder is electrically connected with the circuit system.

When the small bags of the target number are all filled in the big bag, the big bag is flapped before closing the mouth as shown in fig. 30.

Under the command of the control circuit of the circuit system, the telescopic end of the beating cylinder performs telescopic motion for several times, so as to drive the beating block 40 to move up and down for several times, as shown in fig. 32; the bottom of the big bag is flapped every time of upward movement, so that the small bags in the big bag can be arranged orderly after being flapped. In FIG. 32, the paddle 40, which is in a relatively low position, is drawn by a thick solid line; while the patting block 40, which is located at a relatively high position, is drawn by a dotted line. After the swatter is finished, the big bag is closed.

Example four

In the first embodiment, the case of the opening mechanism is described.

The functions and functions of the opening mechanism include: the big bag 3 is sucked up, spread and placed to the lower side of the arrangement enclosure frame 4. See fig. 11. Here, there is a problem that further study is required, that is, if the big bag in fig. 11 is used up, if the replenishment is not performed automatically, the machine is stopped, a stack of big bags is fed manually, and then the machine is restarted to continue the operation, thus causing a lot of troubles. To overcome this problem, the present embodiment introduces the following mechanism for automated replenishment of the big bag.

First, an automatic refill big bag mechanism is described, which comprises: a big bag stock platform 43 positioned at the left side, a push-pull component for pushing and pulling left and right, a big bag stacking platform 44 positioned at the right side, and an interception component for intercepting big bags; the pushing assembly comprises a pushing end and a pulling end, and the pushing end is fixedly connected with the big bag stock platform; the big bag stacking platform is provided with more than two through holes; the interception component comprises: upper and lower action ends, an intercepting bar 45, and an intercepting bar support; the number of the intercepting rods 45 is the same as that of the through holes, and the intercepting rods are positioned in the through holes and movably connected with the through holes; the upper action end and the lower action end are fixedly connected with an intercepting rod bracket, and the intercepting rod bracket is fixedly connected with the bottom of the intercepting rod 45; the large-bag stock platform 43 is provided with avoidance grooves for avoiding interception rods, and the number of the avoidance grooves is the same as that of the interception rods; the detection circuit comprises a probe circuit for detecting the condition of the big bag stacking platform 44; the push-pull assembly, the interception assembly and the probe circuit are respectively and electrically connected with the circuit system through electric wires.

Hereinafter, the following description will be made with reference to fig. 33 to 36.

FIG. 33 is one of the operational schematics of the automatic big bag refill mechanism; FIG. 34 is a second schematic view of the operation of the automatic big bag replenishment mechanism; FIG. 35 is the schematic view of FIG. 33 with the big bag removed; fig. 36 is a schematic view of fig. 34 with the big bag removed.

In fig. 33, the ready-to-refill big bag is placed by the worker on the big bag stock platform 43 in advance. When the detection circuitry detects that the big bag stacking platform 44 does not have a big bag, the circuitry is immediately reported; the circuitry then commands the push-pull end of the pusher assembly to extend to the right, thereby pushing the big bag stock platform, with the big bag above, to the right, see fig. 34. In order to move the large bag stocking platform smoothly, the large bag stocking platform needs to be provided with relevant structural members, such as guide rails arranged on two sides of the platform main body, which are omitted and not shown in the figures.

After the big bag stock platform has moved right to the right and is in place, the circuitry then commands the intercepting bar to extend upward and then commands the big bag stock platform to retract leftward, the big bag is intercepted and retained on the big bag stacking platform 44 due to the intercepting action of the intercepting bar. Thus, the big bag can be replenished without stopping the machine. Also, the worker can go round for inspection, and if there is no big bag on the big bag stock platform 43, the big bag can be put in a stack, and then go away, and go round for inspection after a burst.

For the above description, point 3 is additionally described. 1. The detection circuit may use a pair of infrared diodes as probes, one infrared emitting diode and one infrared receiving diode. When a big bag is arranged on the big bag stacking platform 44, the infrared light is shielded; when the big bag stacking platform 44 is empty of big bags, the infrared light is received by the receiving diodes and immediately reported to the circuitry. 2. The pushing assembly can use an air cylinder, so that the pushing end of the pushing assembly is the telescopic end of the air cylinder; the propelling movement subassembly also can be with sharp module, like this, the push-and-pull end of propelling movement subassembly is the slider. 3. The upper and lower active ends of the intercepting member are moved up or down by the command of the circuitry, thereby moving the intercepting bar holder up or down, resulting in an ascending or descending movement of the intercepting bar 45.

EXAMPLE five

After the small bags with the target number are filled into the big bag, the clamping mechanism closes the bag opening, how to sew the bag opening and how to convey the big bag with the sewn bag opening can be completed by a subsequent operation mechanism, and related descriptions are provided below.

First, the following working mechanism is described below.

The rear operation mechanism comprises: a sewing device containing a detection part, a carrying device containing a trolley 50, and a holding device arranged on the trolley 50;

the carrying device comprises: a carriage 50, an upper rail 51, a lower rail 52, a servo motor 53, and a belt 54; the trolley 50 is provided with a transmission block 55, and wheels 56 are arranged at the top and the bottom of the trolley; two ends of the upper guide rail 51 and two ends of the lower guide rail 52 are respectively fixedly connected with the frame 1; the wheels 56 at the top of the trolley 50 are in rolling connection with the upper guide rail 51, and the wheels 56 at the bottom of the trolley 50 are in rolling connection with the lower guide rail 52; the servo motor 53 is fixedly connected with the frame 1 or fixedly connected with the frame 1 through a bracket, the output shaft of the servo motor is in transmission connection with a transmission belt 54, and the transmission belt 54 is connected with a transmission block 55 on the trolley 50;

the holding device comprises: an air compressor, a trolley lifting cylinder 66, a trolley lifting bracket 57, a bag supporting plate 58 and a trolley clamping component;

the trolley lifting cylinder 66 is fixedly connected with the trolley 50, and the telescopic end of the trolley lifting cylinder is fixedly connected with the trolley lifting support 57;

the dolly centre gripping subassembly include: the clamping device comprises a clamping mounting plate 68, a clamp cylinder 59, a left clamp 60, a left connecting rod 61, a clamp rotating block 62, a right clamp 60-1 and a right connecting rod 61-1; the clamping mounting plate 68 is fixedly connected with the upper part of the trolley lifting bracket 57; the middle part of the clamp rotating block 62 is rotatably connected with the clamping mounting plate 68; a clamp cylinder 59 rotatably connected to the clamp mounting plate 68, and having a telescopic end rotatably connected to an upper portion of the clamp rotating block 62; the lower parts of the left clamp 60 and the right clamp 60-1 are respectively connected with a clamping mounting plate 68 in a rotating way; a left connecting rod 61, one end of which is rotatably connected with the left clamp 60 and the other end of which is rotatably connected with the upper part of the clamp rotating block 62; one end of the right connecting rod 60-1 is rotatably connected with the lower part of the clamp rotating block 62, and the other end is rotatably connected with the right clamp 60-1;

the bag supporting plate 58 is fixedly connected with the lower part of the trolley lifting bracket 57;

the sewing equipment is arranged in the corresponding area where the trolley 50 runs;

the air compressor is respectively in air path connection with the trolley lifting cylinder 66 and the clamp cylinder 59 through air pipes; the servo motor 53, the trolley lifting cylinder 66, the clamp cylinder 59 and the sewing equipment are respectively and electrically connected with the circuit system through electric wires.

The following operation mechanism is described above. Next, description will be given with reference to fig. 37, 38, and 39.

Fig. 37 is a schematic view of a carrier device. The upper wheels 56 of the cart 50 are constrained to move on the upper track 51 and the lower wheels 56 are constrained to move on the lower track 52. Under the control of the circuit system, the servo motor 53 rotates forward or backward to drive the transmission belt 54 to rotate forward or backward, and finally the trolley moves leftwards or rightwards through the transmission block 55. Further, the belt 54 includes upper and lower portions, and two end portions, forming a closed loop. The transmission block 55 is fixedly connected with the main body of the trolley 50, i.e. the transmission block 55 and the main body of the trolley 50 do not rotate. The belt 54 is connected to a driving block 55 on the cart 50, and further, only one of the upper portion or the lower portion of the belt 54 is connected to the driving block 55, that is: the upper part of the belt 54 is connected to the driving block 55, while the lower part of the belt 54 is not connected; alternatively, the lower portion of the belt 54 is attached to the drive block 55, while the upper portion of the belt 54 is unattached.

When the belt 54 moves, the drive block 55 is pulled, thereby pulling the cart into motion. As for how to pull, how to connect the transmission belt 54 with the transmission block 55, any one of the following three may be optionally selected.

1. The connection between the belt 54 and the drive block 55 is a friction connection, by means of which the belt 54 frictionally drives the drive block 55 and thus the trolley.

2. The connection between the belt 54 and the driving block 55 is a fixed connection via a connecting member, and when the belt 54 moves, the driving block 55 will be driven to move, so that the cart moves.

3. The belt 54 is a toothed timing belt and the block 55 is a toothed timing wheel. The teeth of the two gears are shallow teeth, and the synchronizing wheel is fixedly connected with the trolley 50, so that the two gears do not rotate. When the synchronous belt moves, the synchronous wheel is pulled, so that the trolley moves.

Also, the real-time position of the cart can be detected by a plurality of probes, for example, infrared transmitting and receiving light pipes (paired light pipes) can be used to form the probes. In this way, although it may happen that the movement of the belt 54 and the movement of the block 55 (trolley) are not perfectly synchronized, since the position of the trolley movement is known by the probe, and the control circuit issues a corresponding command according to the information about the real-time position of the trolley.

Figure 38 is one of the schematic views of a clasping apparatus. 1. The telescopic end of the trolley lifting cylinder 66, which ascends or descends, drives the trolley lifting bracket 57 to ascend or descend, and simultaneously drives the bag supporting plate 58 and the trolley clamping component to ascend or descend. In this figure, the trolley lifting support 57 is in a low position. 2. In the cart clamp assembly, the left clamp 60 and the right clamp 60-1 are in an open position when the telescoping end of the clamp cylinder 59 is in a retracted position.

Figure 39 is a second schematic view of the clasping apparatus. 1. In this figure, the trolley lifting support 57 is in a low position. 2. In fig. 38, the left and right clamps 60 and 60-1 are in an open state; when the related command is sent by the circuit system, the telescopic end of the clamp cylinder 59 extends forwards, the clamp rotating block 62 is pushed to rotate clockwise, the left connecting rod 61 and the right connecting rod 61-1 are pulled together to act, and finally the left clamp 60 and the right clamp 60-1 are closed to be in a clamp state, as shown in fig. 39.

The following working mechanism is described above, and is also explained with reference to fig. 37, 38, and 39. Next, the operation will be described.

When the packaging machine of the present invention is operated, after a target number of small bags are loaded into the big bag and the clamping mechanism closes the mouth of the big bag, the subsequent operation mechanism described above in this embodiment continues to operate.

First, at this point, the big bag is closed and held suspended in the air by the holding mechanism, see the condition of fig. 31. The trolley is moved to the end of one end, i.e. to the big bag position, and the bag support plate 58 is located directly below the big bag 3.

Secondly, under the command of the circuit system, the telescopic end of the trolley lifting cylinder 66 extends out, the trolley lifting bracket 57 rises, the bag supporting plate 58 also rises, and the big bag 3 is supported.

Third, the gripping mechanism releases the big bag when the big bag 3 is lifted.

Fourth, the left and right grippers 60 and 60-1 are opened from the opened state shown in FIG. 38, and are combined to grip the mouth of the big bag 3, as shown in FIG. 39. The loosening and clamping of the left and right clamps is caused by the movement of the telescopic ends of the clamp cylinders 59.

Fifthly, the telescopic end of the trolley lifting cylinder 66 retracts, the trolley lifting bracket 57 descends, and the bag supporting plate 58 descends together with the big bag 3.

Sixthly, the trolley starts to move towards the other end, and in the moving process, when the trolley passes through the sewing equipment, the detected part detects that the sewing operation of the sewing machine head is started, and the trolley moves and is sewn at the same time. After sewing, the trolley continues to move and finally reaches the end point at the other end.

Seventh, the cart reaching the end point, for the big bag that has been sewn, the left and right clamps are released, pushed out by an automated push plate, or removed by a worker.

EXAMPLE six

The packaging machine of the present embodiment is fully automated, as will be described in detail below.

The packaging machine of the embodiment is provided with an automatic big bag replenishing mechanism, and when the big bags on the big bag stacking platform 44 are used up, the big bags can be automatically replenished, and the principle and operation of the packaging machine are shown in the fourth embodiment.

For the pouches already filled with product, the inventive packaging machine of this example functions and aims to: and (4) automatically loading the small bags into the big bag, sewing the opening of the big bag, and finally carrying out the transportation.

The following introduces the full-process automation operation from the first case to the fifth case one by one in the sequence of the production process.

In the first case, pouch transport.

The small bags are conveyed to the upper side of the arrangement enclosing frame 4 of the superposition arrangement system by a conveying belt device and then are flushed into the arrangement enclosing frame 4 by inertia; the conveyor belt device in this embodiment is composed of a conveyor belt mechanism 81 disposed at the front, and an acceleration conveyor belt mechanism 82 disposed at the rear. The transmission speed of the acceleration transmission belt mechanism 82 is higher than that of the transmission belt mechanism 81, so that the problem that the small bags can be hung can be solved, the small bags fall to the arrangement, the posture of the arrangement enclosing frame 4 is better, four corners of the small bags parallel to each other fall, and adverse conditions such as deflection cannot occur.

The above description is understood in conjunction with fig. 40.

In the second case, the small bags are stacked and arranged orderly.

The description will be given by taking eight small bags and one big bag as an example.

Eight pouches entered in two consecutive groups.

In the first group, the first small bag enters the arrangement enclosure frame 4, and then the supporting plate 6 descends for one grid; the second small bag enters the arrangement enclosure frame 4 and is superposed on the first small bag, and then the supporting plate 6 descends one grid; the third small bag enters the arrangement enclosure frame 4 and is superposed on the second small bag, and then the supporting plate 6 descends one grid; the fourth small bag enters the arrangement enclosure frame 4 and is superposed on the third small bag, then the supporting plate 6 is drawn out, and the first group of four small bags which are orderly superposed and arranged fall into the big bag below.

Then, the pallet 6 on the other side enters the arrangement enclosure frame 4, the first small bag of the second group enters the arrangement enclosure frame 4, and then the pallet 6 descends by one grid, and the later situation is the same as the subsequent operation situation corresponding to the first group, and is not described again.

After the eight small bags enter the big bag, the operation of filling the first big bag into the small bags is completed. Then, the eight small bags of the next round are continuously loaded.

And in the third situation, the big bag is taken and sent.

The big bag placed on the big bag stacking platform 44 needs to be picked up, opened, and sent to the lower side of the arrangement enclosure 4. The specific principle and operation are described in detail in the second embodiment.

In the fourth case, the big bag is clamped and filled into the small bag.

The specific sequence of actions is as follows.

1. The clamping mechanism clamps the big bag sent by the opening mechanism; the opening rod of the opening mechanism leaves.

2. With the big bag clamped, the small bag falls in.

3. The bottom of the big bag is beaten from bottom to top by the beating mechanism, so that the arrangement of the small bags in the big bag is more ideal.

4. The clamping mechanism closes the big bag for subsequent operation; for example, sewing work is performed smoothly only when the big bag is closed.

Description of the conditions: the contents of 1, 2 and 4 are understood by referring to the second embodiment; the contents of the above 3 are understood by referring to the third embodiment.

In the fifth case, the big bag is transported and the seal is sewn.

For the big bag filled with small bags, the subsequent operation is to sew and seal the big bag and to convey the big bag out of the packaging machine. The performance of both operations is understood with reference to example five.

Claims

1. A packaging machine for filling small bags into big bags is characterized in that:

the method comprises the following steps: the device comprises a rack (1), a conveyor belt device, a stacking arrangement system and a circuit system; the circuit system comprises: a detection circuit, a control circuit, and a power supply circuit; the front end of the conveying belt device is connected with the small bag (2), and the rear end of the conveying belt device is positioned on one side of the upper part of the stacking arrangement system; the big bag (3) is positioned below the stacking arrangement system;

the stacking arrangement system comprises: an arrangement enclosure frame (4), a first bracket device and a second bracket device; the two bracket devices are symmetrically arranged;

each of the cradle devices comprises: the supporting plate (6), the telescopic mechanism and the up-and-down action mechanism;

the telescopic mechanism comprises a telescopic machine body and a telescopic end; the telescopic end is fixedly connected with the supporting plate (6);

the arrangement surrounding frame (4) is symmetrically provided with avoidance structures (4 a); the avoidance structure (4a) comprises: the support plate enters the entering avoiding structure of the arranging surrounding frame (4), the support plate exits the exiting avoiding structure of the arranging surrounding frame (4), and the support plate (6) moves up and down to avoid the structure.

2. A machine for packaging small and large bags according to claim 1, wherein:

the conveyor belt device include: a conveyor belt mechanism (81) arranged at the front and an acceleration conveyor belt mechanism (82) arranged at the rear;

the conveying speed of the conveying belt mechanism is accelerated, and the conveying speed of the conveying belt mechanism is higher.

3. A machine for packaging small and large bags according to claim 1, wherein:

the supporting plate (6) comprises: the device comprises a plate-shaped supporting plate main body and an L-shaped connecting bracket, wherein the plate-shaped supporting plate main body is horizontally arranged;

the telescopic mechanism comprises: an air compressor and a telescopic cylinder (11); the telescopic cylinder comprises a cylinder body and a cylinder telescopic end; a compressed gas output interface of the air compressor is connected with a gas circuit of the telescopic cylinder through a gas pipe;

the circuit system is electrically connected with the air compressor through an electric wire; the circuit system is electrically connected with the telescopic cylinder through an electric wire;

the arrangement surrounding frame (4) is a rectangular structure body formed by a front plate (4-1), a rear plate (4-2), a left plate (4-3) and a right plate (4-4), and the upper end of the front plate (4-1) is shorter than the upper ends of the other three plates; the avoiding structures of the arrangement enclosing frame (4) are symmetrically arranged, and each side of the avoiding structures is of an I-shaped hollow structure; further, the upper side of the I-shaped hollow structure is a transverse hollow structure, the middle of the I-shaped hollow structure is a vertical hollow structure, the lower side of the I-shaped hollow structure is a transverse hollow structure, and the three hollow structures are communicated in a hollow way; the arrangement surrounding frame (4) is fixedly connected with the rack (1), or the arrangement surrounding frame (4) is fixedly connected with the rack (1) through a surrounding frame support.

4. A machine for packaging small and large bags according to claim 1, wherein:

the up-down action mechanism is a linear module (8-1) which comprises a linear module body main body and a sliding block; the linear module (8-1) is fixedly connected with the rack (1), or the linear module (8-1) is fixedly connected with the rack (1) through a connecting part; the linear module (8-1) is set to be in a vertical state, namely the slide block moves up and down;

the telescopic machine body of the telescopic mechanism is fixedly connected with the sliding block;

the circuit system is electrically connected with the linear module (8-1) through an electric wire.

5. A machine for packaging small and large bags according to claim 1, wherein:

the telescopic mechanism comprises: an air compressor and a telescopic cylinder (11); the telescopic cylinder (11) comprises a cylinder body and a cylinder telescopic end; a compressed gas output interface of the air compressor is connected with a gas circuit of the telescopic cylinder (11) through a gas pipe;

the arrangement surrounding frame (4) is a rectangular structure body formed by a front plate (4-1), a rear plate (4-2), a left plate (4-3) and a right plate (4-4), and the upper end of the front plate (4-1) is shorter than the upper ends of the other three plates; the avoiding structures of the arrangement enclosing frame (4) are symmetrically arranged, and each side of the avoiding structures is of an I-shaped hollow structure; further, the upper side of the I-shaped hollow structure is a transverse hollow structure, the middle of the I-shaped hollow structure is a vertical hollow structure, the lower side of the I-shaped hollow structure is a transverse hollow structure, and the three hollow structures are communicated in a hollow way; the arrangement enclosing frame (4) is fixedly connected with the rack (1), or the arrangement enclosing frame (4) is fixedly connected with the rack (1) through an enclosing frame support;

the cylinder body of the telescopic cylinder (11) is fixedly connected with the sliding block;

the circuit system is electrically connected with the air compressor through an electric wire; the circuit system is electrically connected with the telescopic cylinder (11) through an electric wire; the circuit system is electrically connected with the linear module through an electric wire.

6. A machine for packaging small and large bags according to claim 1, wherein:

the packaging machine comprises: the big bag (3) is opened and placed on the opening mechanism at the lower side of the arrangement enclosing frame (4), the opened big bag (3) is used as a clamping mechanism for clamping operation, and the big bag filled with small bags is used as a post-processing mechanism for conveying and sealing operation.

7. A machine for packaging small and large bags according to claim 1, wherein:

the packaging machine comprises: the opening mechanism is used for sucking, opening and placing the big bag (3) to the lower side of the arrangement enclosing frame (4);

the opening mechanism comprises: an upper suction separating mechanism, a lower suction separating mechanism, a spreader bar separating mechanism (16), an air compressor, and a vacuum pump;

the upper suction separation mechanism comprises: an upper suction nozzle (17), an upper suction action component and an upper suction valve; the upper suction action assembly comprises an upper suction sliding table (18) and an upper suction support (23); the number of the upper suction nozzles (17) is more than four, and the upper suction nozzles are arranged on the upper suction bracket (23); the upper suction bracket (23) is fixedly connected with a sliding block in the upper suction sliding table (18); the air suction end of the vacuum pump is connected with one end of the upper air suction valve through an air pipe air passage; the other end of the upper suction valve is connected with an upper suction nozzle (17) through an air pipe air passage; the upper suction valve and the upper suction sliding table (18) are respectively and electrically connected with the circuit system through electric wires;

the lower suction and separation mechanism comprises: a downdraft suction nozzle (19), a downdraft action component and a downdraft air valve; the downdraft action assembly comprises a downdraft air cylinder (24) and a downdraft bracket (25); the number of the downdraft suction nozzles (19) is more than two, and the downdraft suction nozzles are arranged on the downdraft bracket (25); the lower suction support (25) is fixedly connected with the telescopic end of the lower suction cylinder (24); the air suction end of the vacuum pump is connected with one end of the lower air suction valve through an air pipe air passage; the other end of the lower air suction valve is connected with a lower suction nozzle (19) through an air pipe air passage; the downdraft air cylinder (24) is connected with the output end of the air compressor through an air pipe air passage; a lower suction air valve and a lower suction air cylinder (24) which are respectively and electrically connected with the circuit system through electric wires;

the spreader bar mechanism (16) comprises: a servo motor (26), a right-angle reducer (27), a mounting rod (28), and an opening rod assembly; the servo motor and the right-angle reducer are both fixedly connected with the rack (1); an output shaft of the servo motor is in transmission connection with the right-angle reducer; an output shaft of the right-angle speed reducer is coaxially and fixedly connected with the mounting rod (28);

the spreader bar assembly comprising: a first opening rod (29), a second opening rod (29-a), a first connecting rod (30), a second connecting rod (30-a), a mounting plate (90), a rotating block (31) and a bag opening cylinder (32);

the middle part of the rotating block (31) is rotatably connected with the mounting plate (90), and the lower part of the rotating block is rotatably connected with one end of the first connecting rod (30); the other end of the first connecting rod (30) is rotatably connected with the upper part of the first opening rod (29); the upper end of the first opening rod (29) is rotatably connected with the mounting plate (90);

the upper part of the rotating block (31) is rotatably connected with one end of the second connecting rod (30-a); the other end of the second connecting rod (30-a) is rotatably connected with the upper part of the second opening rod (29-a); the upper end of the second opening rod (29-a) is rotatably connected with the mounting plate (90);

the bag supporting cylinder (32) is fixedly connected with the mounting plate (90), and the telescopic end of the bag supporting cylinder is rotatably connected with the upper part of the rotating block (31); the bag supporting cylinder (32) is connected with the output end of the air compressor through an air pipe air passage;

a servo motor (26) and a bag opening cylinder (32), which are respectively electrically connected with the circuit system through electric wires.

8. A machine for packaging small and large bags according to claim 1, wherein:

the packaging machine comprises: the holding mechanism is used for holding the big bag (3) which is spread in place;

the fixture, it sets up in the below of arranging and enclosing frame (4), it includes: the air compressor comprises a first clamping assembly, a second clamping assembly and an air compressor, wherein the first clamping assembly and the second clamping assembly are symmetrically arranged;

each clamping assembly comprises: the device comprises a left connecting piece (33), a right connecting piece (34), a shared connecting piece (35), a clamping piece (36) provided with a left hole and a right hole, a clamping cylinder (37) and a closing cylinder (38);

the left connecting piece (33) and the right connecting piece (34) are arranged on the lower side of the arrangement surrounding frame (4);

the upper end of the common connecting piece (35) and the right hole of the clamping piece (36) are rotatably connected with the right connecting piece (34);

the upper end part of the closing cylinder (38) is rotationally connected with the left connecting piece (33), and the lower telescopic end of the closing cylinder is rotationally connected with the common connecting piece (35);

the upper part of the clamping cylinder (37) is rotationally connected with the left hole of the clamping sheet (36), and the telescopic end at the lower side of the clamping cylinder is rotationally connected with the common connecting sheet (35);

the clamping cylinder (37) and the closing cylinder (38) are respectively connected with an air compressor through air pipes, and are respectively electrically connected with a circuit system through electric wires.

9. A machine for packaging small and large bags according to claim 1, wherein:

the packaging machine comprises: a flapping mechanism;

beater mechanism, it includes: a patting block (40), a patting cylinder (41), and an air compressor;

the beating block and the beating cylinder are positioned at the lower side of the clamping mechanism; the beating block is arranged on the upper part, and the beating cylinder is arranged on the lower part; the beating block is fixedly connected with the telescopic end of the beating cylinder; the body part of the flapping cylinder is fixedly connected with the frame (1) through a bracket;

the flapping air cylinder is connected with an air passage of the air compressor through an air pipe; the air compressor obtains power electric energy from the circuit system through an electric wire;

and the wiring end of the flapping cylinder is electrically connected with the circuit system.

10. A machine for packaging small and large bags according to claim 1, wherein: the packaging machine comprises an automatic big bag supplementing mechanism;

the automatic big bag supplementing mechanism comprises: the big bag storage platform (43) is positioned on the left side, the push-pull assembly is used for pushing and pulling left and right, the big bag stacking platform (44) is positioned on the right side, and the interception assembly is used for intercepting the big bags;

the pushing assembly comprises a pushing end and a pulling end, and the pushing end is fixedly connected with the big bag stock platform;

the big bag stacking platform is provided with more than two through holes; the interception component comprises: an upper and lower action end, an interception bar (45), and an interception bar support; the number of the intercepting rods (45) is the same as that of the through holes, and the intercepting rods are positioned in the through holes and movably connected with the through holes; the upper action end and the lower action end are fixedly connected with an intercepting rod bracket, and the intercepting rod bracket is fixedly connected with the bottom of an intercepting rod (45);

the large-bag stock platform (43) is provided with avoidance grooves for avoiding interception rods, and the number of the avoidance grooves is the same as that of the interception rods;

the detection circuit comprises a probe circuit for detecting the condition of the big bag stacking platform (44);

the push-pull assembly, the interception assembly and the probe circuit are respectively and electrically connected with the circuit system through electric wires.

11. A machine for packaging small and large bags according to claim 1, wherein: the packaging machine comprises a subsequent operation mechanism;

the rear operation mechanism comprises: the sewing machine comprises a detection part, a carrying device comprising a trolley (50), and a holding device arranged on the trolley (50);

the carrying device comprises: a trolley (50), an upper guide rail (51), a lower guide rail (52), a servo motor (53) and a transmission belt (54); the trolley (50) is provided with a transmission block (55), and wheels (56) are mounted at the top and the bottom of the trolley; two ends of the upper guide rail (51) and two ends of the lower guide rail (52) are respectively fixedly connected with the rack (1); wheels (56) at the top of the trolley (50) are in rolling connection with the upper guide rail (51), and wheels (56) at the bottom of the trolley (50) are in rolling connection with the lower guide rail (52); the servo motor (53) is fixedly connected with the rack (1) or fixedly connected with the rack (1) through a bracket, an output shaft of the servo motor is in transmission connection with a transmission belt (54), and the transmission belt (54) is connected with a transmission block (55) on the trolley (50);

the holding device comprises: the bag lifting device comprises an air compressor, a trolley lifting cylinder (66), a trolley lifting support (57), a bag supporting plate (58) and a trolley clamping component;

the trolley lifting cylinder (66) is fixedly connected with the trolley (50), and the telescopic end of the trolley lifting cylinder is fixedly connected with the trolley lifting support (57);

the dolly centre gripping subassembly include: the clamp comprises a clamping mounting plate (68), a clamp cylinder (59), a left clamp (60), a left connecting rod (61), a clamp rotating block (62), a right clamp (60-1) and a right connecting rod (61-1); the clamping mounting plate (68) is fixedly connected with the upper part of the trolley lifting bracket (57); the middle part of the clamp rotating block (62) is rotationally connected with the clamping mounting plate (68); the clamp cylinder (59) is rotatably connected with the clamping mounting plate (68), and the telescopic end of the clamp cylinder is rotatably connected with the upper part of the clamp rotating block (62); the lower parts of the left clamp (60) and the right clamp (60-1) are respectively connected with the clamping mounting plate (68) in a rotating way; a left connecting rod (61), one end of which is rotatably connected with the left clamp (60), and the other end of which is rotatably connected with the upper part of the clamp rotating block (62); one end of the right connecting rod (60-1) is rotatably connected with the lower part of the clamp rotating block (62), and the other end of the right connecting rod is rotatably connected with the right clamp (60-1);

the bag supporting plate (58) is fixedly connected with the lower part of the trolley lifting bracket (57);

the sewing equipment is arranged in a corresponding area where the trolley (50) runs;

the air compressor is respectively in air path connection with the trolley lifting cylinder (66) and the clamp cylinder (59) through air pipes;

the sewing machine comprises a servo motor (53), a trolley lifting cylinder (66), a clamp cylinder (59) and sewing equipment, wherein the servo motor, the trolley lifting cylinder (66), the clamp cylinder (59) and the sewing equipment are respectively and electrically connected with a circuit system through electric wires.