CN210681362U - Heat sealing device for multi-row bagged packaging machine - Google Patents

Abstract

The utility model discloses a heat sealing device for a multi-row bag packaging machine, which comprises a material bag forming mechanism, a longitudinal sealing mechanism and a transverse sealing mechanism which are all fixed with a frame; the longitudinal sealing mechanism comprises a longitudinal sealing rotating arm structure; horizontal seal mechanism includes ball screw mechanism, support direction displacement mechanism and horizontal involution mechanism: the transverse sealing mechanism completes transverse sealing of the packaging bag under the synergistic action of the ball screw mechanism and the supporting guide displacement mechanism. The utility model discloses the heat-seal device wrapping bag adopts the horizontal reciprocating motion one shot forming of back of the body formula material bag, and its involution mode is unique, and the seal is strong, no gas leakage, fold phenomenon. Meanwhile, the full servo system adopted by the mechanism is accurate in action, high in speed and free of maintenance. Because the utility model discloses in have and indulge and seal swinging boom structure, when installation, the debugging to removable part, convenient and fast can open, form pivot formula structure. The safety coefficient and the working efficiency of the operation are greatly improved.

Description

Heat sealing device for multi-row bagged packaging machine

Technical Field

The utility model relates to a packaging machinery, more specifically the utility model relates to a device that is used for bagged food or medicine multiseriate fillet (or dysmorphism) to seal form packaging machinery.

Background

At present, in food and medicine packaging production mechanical equipment, heat sealing of a packaging bag is the most common and practical bag making mode applied to composite packaging materials. Generally, the quality of the seal depends on whether it has good heat seal strength and a good appearance. The factors for determining the quality of the heat-sealing bag mainly comprise six aspects: first, heat sealing temperature. The selection of the heat sealing temperature of the composite film has close relation with the performance, thickness, bag making machine speed, hot air pressure and the like of the composite substrate, and directly influences the heat sealing strength. The seal-peeling temperature of the composite film is determined by the viscous flow temperature or melting temperature of the heat-sealing material, and the heat-sealing temperature cannot exceed the decomposition temperature of the heat-sealing material. The temperature between the viscous flow temperature and the decomposition temperature is the heat sealing temperature range of the heat sealing material, and is a key factor for influencing and controlling the heat sealing quality. The wider the heat-sealing temperature range, the better the heat-sealing performance, and the easier and more stable the quality control. Meanwhile, the heat sealing temperature of the composite film cannot be higher than the heat setting temperature of the printing substrate. Otherwise, shrinkage and wrinkling at the heat-sealed portion may occur, reducing the heat-seal strength and the impact resistance of the bag. The printing base material has good temperature resistance, such as BOPET, BOPA and the like, and the production rate can be improved by increasing the heat sealing temperature; poor temperature resistance of printed substrates, such as BOPP, strives to use lower heat seal temperatures while ensuring heat seal strength by increasing pressure, reducing production speed or selecting low temperature heat seal materials. And secondly, heat sealing pressure. The magnitude of the heat-seal pressure is related to the properties, thickness, heat-seal width, etc. of the composite film. The polar heat sealing material has higher activation performance, and the temperature rise has larger influence on the reduction of the viscosity, so the required heat sealing pressure is smaller, and the phenomenon that the melting material at the heat sealing part is extruded to influence the heat sealing effect is prevented. PE and PP are non-polar materials, so that the activation performance is extremely low, the required pressure is high, and the heat sealing strength and the interface sealing performance are facilitated. The heat-sealing pressure should increase as the thickness of the composite film increases. If the heat sealing pressure is insufficient, the two layers of films are difficult to heat seal, and air bubbles clamped between the welding lines are difficult to exhaust; too high heat sealing pressure may extrude away molten material, damaging the weld edge and causing root breaking. The heat-seal pressure is calculated taking into account the width and actual surface area of the heat-seal block required. The wider the width of the heat seal block, the greater the pressure required. And thirdly, the heat sealing speed. The heat-sealing speed reflects the bag-making efficiency of the packaging machine and is also an important factor influencing the heat-sealing strength and appearance. The faster the heat-sealing speed is, the higher the heat-sealing temperature is, so as to ensure that the heat-sealing strength and the heat-sealing state reach the optimal values; at the same heat-sealing temperature and pressure, the slower the heat-sealing speed, the more complete and stronger the fusion of the heat-seal material, but without causing root breaking. At present, the heat sealing time of the bag making machine produced in China is mainly determined by the bag making speed of a packaging machine. Increasing the heat seal time necessitates a reduction in bag making speed and a reduction in production efficiency. And fourthly, cooling. The cooling process is a process of shaping the weld joint which is just fused and sealed by using lower temperature under certain pressure, eliminating stress concentration, reducing the contraction of the weld joint, improving the appearance flatness of the bag and improving the heat sealing strength. And fifthly, heat sealing times. The longitudinal and transverse heat sealing of most bag making machines adopts a hot plate welding method, the longitudinal heat sealing times depend on the ratio of the effective length of the heat sealing block to the bag length, and the transverse heat sealing times are determined by the number of groups of heat sealing devices of the machine. Good heat sealing generally requires more than 2 heat seals. In order to meet the requirement of heat sealing of the wide edge, a transverse heat sealing device is often added, and the heat sealing times are increased so as to reduce the heat sealing temperature and reduce the necking phenomenon. For packaging bags with longer specifications, a multiple feeding technology can be adopted, so that the feeding length of each time is reduced to one half or one third of the bag length, the production efficiency is reduced, and some bag making machines increase the length of a longitudinal heat sealing block to increase the heat sealing times and ensure the heat sealing quality. And sixthly, heat sealing the gaps of the blocks. The heat seal block gap refers to a pressing distance by which a predetermined heat seal pressure is transmitted to the heat seal surface when the upper heat seal block contacts the bottom plate. At the same film thickness and the same heat-sealing speed, the heat-sealing block gap is small, the heat-sealing time is relatively short, and the heat-sealing strength of the product is reduced. The heat seal block gap is generally set to 1.0 to 1.5mm, which is related to the film thickness, transfer performance, bag making speed, etc.

In summary, the above factors should be considered in the sealing system of the packaging machine to ensure the quality and efficiency of heat-sealing bag making.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned prior art, the utility model provides a heat sealing device for multiseriate packagine machine in bags uses the utility model discloses heat sealing device wrapping bag adopts back of the body to seal formula pocket and violently seals reciprocating motion one shot forming, and its involution mode is unique, and the seal is strong, no gas leakage, fold phenomenon. Meanwhile, the full servo system adopted by the mechanism is accurate in action, high in speed and free of maintenance.

In order to solve the technical problem, the utility model provides a heat sealing device for a multi-row bag packaging machine, which comprises a material bag forming mechanism, a longitudinal sealing mechanism and a transverse sealing mechanism, wherein the material bag forming mechanism, the longitudinal sealing mechanism and the transverse sealing mechanism are fixed with a frame;

the longitudinal sealing mechanism comprises a longitudinal sealing fixed large plate, four groups of longitudinal sealing guide sleeve components and two far longitudinal cylinders, the four groups of longitudinal sealing guide sleeve components are respectively arranged at the left end and the right end of the longitudinal sealing fixed large plate in pairs, and the longitudinal sealing fixed large plate is fixed on the rack; the two far longitudinal cylinders are respectively arranged between the two groups of longitudinal sealing guide sleeve parts positioned at the same end; the rear ends of two groups of longitudinal sealing guide sleeve components at the same end are connected with a rear connecting plate, and the piston rod end of the far longitudinal cylinder is tightly locked at the middle part of the rear connecting plate through a cylinder connecting column; the front ends of two groups of longitudinal sealing guide sleeve parts at the same end are connected with a supporting shaft block; the supporting shaft blocks at the left end and the right end are respectively provided with an upper section of longitudinal shaft sleeve and a lower section of longitudinal shaft sleeve which are coaxial, and a pin shaft passes through the two sections of longitudinal shaft sleeves at the two ends; the pin shaft at the left end is connected with a left end opening and closing or locking mechanism; a longitudinal sealing rotating arm is connected to the pin shaft at the right end, one end of the longitudinal sealing rotating arm is connected with the pin shaft at the right end, and the other end of the longitudinal sealing rotating arm is connected with or disconnected from the opening and closing or locking mechanism at the left end; the rear side of the longitudinal sealing rotating arm is provided with a longitudinal sealing block module driven by a longitudinal moving structure;

the material bag forming mechanism comprises a longitudinal supporting block and two longitudinal rear fixing plates, the rear ends of the two longitudinal supporting blocks are fastened on the longitudinal sealing fixing large plate, the front ends of the two longitudinal supporting blocks are respectively fixed with the longitudinal rear fixing plates, an intermediate connecting fixing plate is installed on the longitudinal rear fixing plates, an upper material bag former is installed at the top end of the intermediate connecting fixing plate and comprises N arc grooves, and N groups of longitudinal sealing formers are arranged in front of the intermediate connecting fixing plate; the longitudinal sealing former consists of a longitudinal sealing former rear plate and a longitudinal sealing former front forming block which are fixed in front of the middle connecting fixing plate, a longitudinal sealing film pressing plate is arranged in front of the longitudinal sealing former, and a longitudinal sealing guide diaphragm is arranged at the upper part of the longitudinal sealing former; the rear plate of the longitudinal sealing former and the longitudinal sealing front forming block are folded to form a material bag arc surface, and the material bag arc surfaces of the N groups of longitudinal sealing formers are respectively communicated with the N arc grooves on the former on the material bag up and down and are positioned at the same axial position;

horizontal seal mechanism includes ball screw mechanism, support direction displacement mechanism and horizontal involution mechanism: the ball screw mechanism comprises a transverse sealing lifting ball screw driven by a servo motor, the bottom of the transverse sealing lifting ball screw is supported by a transverse sealing screw bearing seat, and the transverse sealing screw bearing seat is fixed with the rack; the upper part of the transverse sealing lifting ball screw is provided with a mounting nut, the mounting nut is provided with a transverse sealing moving connecting plate, and the transverse sealing moving connecting plate is fixed with a transverse sealing connecting plate; the supporting guide displacement mechanism comprises four wallboard fixing plates fixed with the rack, the four wallboard fixing plates are symmetrically arranged in a left-right and up-down mode respectively, a guide shaft fixing plate is fixed on each of the two wallboard fixing plates which are bilaterally symmetrical at the upper part, a middle supporting plate is fixed on each of the two wallboard fixing plates which are bilaterally symmetrical at the lower part, and an auxiliary lifting cylinder is installed on the outer side of each middle supporting plate; two transverse sealing up-down moving guide shafts are arranged between the guide shaft fixing plate and the middle supporting plate on the same left or right side, and a cushion pad is arranged below the root parts of the transverse sealing up-down moving guide shafts; the outer edge of the guide shaft fixing plate is provided with a longitudinal sealing air blowing pipe; the transverse sealing mechanism comprises a main frame, a transverse reinforcing plate is arranged in the middle of the upper portion of the main frame, the main frame comprises two transverse sealing side connecting plates, a transverse sealing rear plate and a transverse sealing front plate, and an adjusting guide shaft and a transverse sealing guide shaft are fixed between the transverse sealing rear plate and the transverse sealing front plate; the adjusting guide shaft and the transverse sealing guide shaft are respectively provided with two first linear bearings, the two first linear bearings are sleeved with a front transverse sealing moving fixed plate and a rear transverse sealing moving fixed plate, the front of the rear transverse sealing moving fixed plate is provided with a rear transverse sealing block with a transverse sealing heating rod, the rear of the front transverse sealing moving fixed plate is provided with a front transverse sealing block with a transverse sealing heating rod, the two ends of the upper part of the front transverse sealing moving fixed plate are respectively provided with a transverse sealing short rack, the two ends of the lower part of the rear transverse sealing moving fixed plate are respectively provided with a transverse sealing short rack, the transverse sealing side connecting plate is provided with two second linear bearings, and the middle positions of the inner sides of the two transverse sealing side connecting plates are respectively provided with a transverse sealing gear meshed with the upper transverse sealing short rack and the; a transverse sealing cylinder is arranged on the outer side of the transverse sealing front plate, the top end of a cylinder rod of the transverse sealing cylinder is connected with a floating joint, and the floating joint penetrates into the main frame through a through hole in the transverse sealing front plate and is connected with a transverse sealing movable fixing plate at the front end;

two second linear bearings are arranged on each transverse sealing side connecting plate in the transverse sealing mechanism, and the tops of two transverse sealing up-down moving guide shafts on the same left or right side in the supporting guide displacement mechanism are respectively matched with the two second linear bearings on each transverse sealing side connecting plate; a piston rod end fixing seat is mounted at the bottom end of a transverse sealing front plate in the transverse sealing mechanism, the piston rod end fixing seat is coaxial with a piston rod of an auxiliary lifting cylinder in the support guide displacement mechanism, and the piston rod end of the auxiliary lifting cylinder is fixed with the piston rod end fixing seat; thereby connecting the transverse sealing mechanism with the supporting guide displacement mechanism; and a transverse sealing connecting plate in the ball screw mechanism is fixed with a transverse sealing rear plate in the transverse sealing mechanism, so that the transverse sealing mechanism is connected with the ball screw mechanism.

Further, the utility model is used for a heat sealing device of a multi-row bag packaging machine, wherein,

the bottom of horizontal involution mechanism is equipped with wrapping bag exhaust structure, wrapping bag exhaust structure includes the laminating is fixed with two exhaust fixed plates on two horizontal sealed movable fixing plates around in the horizontal involution mechanism, all is fixed with vertical exhaust front bezel on two relative inboards of exhaust fixed plate, with the gas outgoing in the wrapping bag when two horizontal sealed movable fixing plates of horizontal sealing move around the horizontal involution mechanism.

The distance between the two exhaust front plates in the exhaust structure of the packaging bag is determined according to the amount of the materials in the packaging bag.

The longitudinal sealing guide sleeve component comprises a linear bearing guide sleeve, a longitudinal sealing moving guide shaft is arranged in the linear bearing guide sleeve, a thrust step is arranged in the middle of the linear bearing guide sleeve, and a copper-based steel ball retaining sleeve and a pressure spring are sleeved on the longitudinal sealing moving guide shaft and positioned at two ends of the thrust step; four corners of the large longitudinal sealing fixing plate are provided with through holes, each through hole penetrates through one longitudinal sealing guide sleeve component, and each longitudinal sealing guide sleeve component is fixed on the large longitudinal sealing fixing plate through a flange of a linear bearing guide sleeve of each longitudinal sealing guide sleeve component; the longitudinal sealing movable guide shaft penetrates through a copper-based steel ball retaining sleeve in the linear bearing guide sleeve, the rear ends of the longitudinal sealing movable guide shafts on the two longitudinal sealing guide sleeve components on the same side of the longitudinal sealing fixed large plate are simultaneously connected with the rear connecting plate, and the front end of the longitudinal sealing movable guide shaft is simultaneously connected with the supporting block; one pressure spring on the longitudinal sealing movable guide shaft is pressed between one copper-based steel ball retaining sleeve and the rear connecting plate, and the other pressure spring on the longitudinal sealing movable guide shaft is pressed between the other copper-based steel ball retaining sleeve and the supporting block.

The left end opening and closing or locking mechanism comprises a left rotating block sleeved on a pin shaft at the left end, a connecting rotating plate is fixed on the left rotating block, a rotating shaft is arranged on the connecting rotating plate, a supporting plate is arranged at the bottom of the connecting rotating plate, the rotating shaft is connected with one end of a fixed baffle, a rotating shaft is fastened on the fixed baffle, and a handle is arranged on the rotating shaft; the rotating handle drives the fixed baffle to rotate around the rotating shaft through the rotating shaft.

The longitudinal sealing rotating arm comprises a front supporting block and a rear supporting block connected with a pin shaft at the right end, an upper connecting plate and a lower connecting plate are connected between the front supporting block and the rear supporting block, a middle connecting plate is arranged between the two connecting plates, a switch baffle is arranged on the front supporting block, and the supporting plate supports the switch baffle from the lower part; the switch baffle is provided with a baffle shaft and a handle knob; the rotating handle drives the fixed baffle to rotate around the rotating shaft through the rotating shaft, so that the fixed baffle is lapped on the blocking shaft or separated from the blocking shaft.

The longitudinal moving structure comprises a first longitudinal moving cylinder and a second longitudinal moving cylinder, the first longitudinal moving cylinder is fixed on the front side of the front supporting block, the second longitudinal moving cylinder is fixed on the rear supporting block, and the axes of piston rods of the first longitudinal moving cylinder and the second longitudinal moving cylinder are parallel; the first longitudinal moving cylinder and the second longitudinal moving cylinder are respectively provided with a longitudinal moving guide shaft which is coaxially connected with a respective piston rod, two ends of the longitudinal sealing block module are respectively fixed with a first box type linear bearing seat matched with the longitudinal moving guide shaft, the first box type linear bearing seat and the longitudinal moving guide shaft which are matched with each other form a guide shaft sliding block mechanism, and the first longitudinal moving cylinder and the second longitudinal moving cylinder drive the longitudinal sealing block module to move axially along the longitudinal moving guide shaft.

The bottom of the intermediate junction fixed plate among the pocket forming mechanism is equipped with indulges to seal and beats a mouthful mechanism, indulge to seal and beat a mouthful mechanism including fixing indulge on the intermediate junction fixed plate and beat a mouthful backing plate, indulge to beat and be fixed with on the backing plate and indulge and beat a mouthful big board, the bottom of indulging to beat a mouthful big board is provided with and indulges to seal and beats a mouthful cylinder, indulge to seal the both sides of beating a mouthful cylinder and be the box linear bearing seat of second respectively, all be equipped with in two box linear bearing seats of second and indulge and beat a mouthful guide shaft, indulge the piston rod of sealing and beat a mouthful cylinder and two one end of indulging and beat a mouthful guide shaft and equally divide and do not be connected with one end of indulging the backup pad of beating, the other end of three indulging the backup pad of beating mouthful all links to each other end with the one side of.

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

to the above prior art requirement, the utility model provides a involution mechanism that is used for multiseriate food, medicine packaging machinery. The mechanism is used for producing a packaging machine of a back-sealed packaging bag. In order to obtain good bag making sealing effect, good heat sealing strength and good and beautiful sealing appearance, the mechanism is designed with great pertinence in the following aspects.

(1) The utility model is used for multiseriate packagine machine in bags's heat-seal device, its heat-seal temperature is by the operating panel independent control of mainframe box, and the temperature is adjustable, and heat time is adjustable.

(2) The heat sealing pressure of the longitudinal sealing part is provided by the pressure of a die spring in a longitudinal sealing block in the longitudinal sealing mechanism and the pressure of a longitudinal moving cylinder, and the pressure can be adjusted by adjusting the pressure of the die spring according to the factors such as the performance, the thickness, the material of the composite film and the like. The cross seal pressure is provided by the cross seal cylinder pressure.

(2) In this aspect of heat-seal speed and cooling condition, the utility model discloses the heat-seal device has adopted to indulge the design that seals the mechanism and violently seal the mechanism two parts and go on respectively, comprises indulging the mechanism and violently sealing the mechanism respectively, indulges to seal and violently seals the temperature and control respectively, has special cooling system of blowing to cool off. Meanwhile, the mechanism adopts a full servo system, and is accurate in action, high in speed and free of maintenance.

(4) The utility model discloses the horizontal involution number of times of heat-seal device is one shot forming, and the width is direct by the size decision of the piece that seals, and the heat-seal quality can be guaranteed in the mode combination increase and decrease heat-seal number of times that vertical involution part can increase heat-seal block length. In order to meet the requirements of different sealing bag sizes, the longitudinal sealing block can be provided with different length sizes, lines of the transverse sealing part and the sealing shape (packaging shape) of the material bag, and only the sealing block needs to be replaced.

(5) The utility model discloses the vertical swing arm structure that seals of sealing device's indulging of sealing mechanism can make installation, the debugging of the removable part in vertical sealing device, convenient and fast's opening forms pivot formula structure. The safety coefficient and the working efficiency of the operation are greatly improved.

Drawings

Fig. 1-1 is a schematic perspective view of a heat sealing device for a multi-row pouch packaging machine according to the present invention;

FIG. 1-2 is a front view of the heat sealing apparatus shown in FIG. 1-1;

FIGS. 1-3 are top views of the heat sealing apparatus of FIGS. 1-1;

FIGS. 1-4 are side views of the heat sealing apparatus of FIGS. 1-1;

FIG. 2-1 is a schematic perspective view of a longitudinal sealing mechanism of the heat sealing apparatus shown in FIG. 1-1;

FIG. 2-2 is a schematic perspective view of the longitudinal sealing mechanism shown in FIG. 2-1 from another perspective;

2-3 are schematic perspective views of the longitudinal sealing mechanism shown in FIG. 2-2 from another perspective;

FIG. 3-1 is a schematic perspective view of a longitudinal sealing guide sleeve mechanism in the longitudinal sealing mechanism shown in FIG. 2-1;

FIG. 3-2 is a side view of the longitudinal containment guide sleeve mechanism shown in FIG. 3-1;

FIG. 3-3 is a front view of the longitudinal sealing guide sleeve mechanism shown in FIG. 3-1;

FIG. 4-1 is a schematic perspective view of a longitudinal sealing rotating arm in the longitudinal sealing mechanism shown in FIG. 2-1;

FIG. 4-2 is a schematic perspective view of another perspective view of the rotary arm shown in FIG. 4-1;

FIG. 4-3 is a schematic perspective view of another perspective view of the rotary arm shown in FIG. 4-2;

FIG. 5 is a top view of the rotary arm of the longitudinal seal of FIG. 4-1;

FIG. 6 is a schematic perspective view of a vertical sealing block module in the vertical sealing rotary arm shown in FIG. 4-1;

FIG. 7 is a top view of the vertical seal block module of FIG. 6;

FIG. 8-1 is a schematic perspective view of one of the vertical seal blocks of the vertical seal block module shown in FIG. 7;

FIG. 8-2 is a schematic perspective view of the vertical sealing block of FIG. 8-1 from another perspective;

FIG. 9 is a cross-sectional view of the longitudinal seal block shown in FIG. 8-1;

FIG. 10-1 is a schematic perspective view of a frame and a pouch forming mechanism of the longitudinal sealing mechanism shown in FIG. 1-1;

FIG. 10-2 is a schematic perspective view of the bag forming mechanism of FIG. 10-1 from another perspective;

FIG. 10-3 is a schematic perspective view of the bag forming mechanism of FIG. 10-2 from another perspective;

FIG. 10-4 is a front view of the bag forming mechanism of FIG. 10-3;

fig. 10-5 is a side view of the pocket forming mechanism of fig. 10-3;

FIG. 10-6 is a top view of the pocket forming mechanism shown in FIG. 10-3;

FIG. 11-1 is a schematic perspective view of a longitudinal sealing and opening mechanism of the longitudinal sealing mechanism shown in FIG. 2-3;

FIG. 11-2 is a schematic perspective view of the longitudinal sealing mechanism shown in FIG. 11-1 from another perspective;

FIG. 12 is a bottom view of the longitudinal sealing and breaching mechanism of FIG. 11-1;

FIG. 13-1 is a schematic perspective view of a cross sealing mechanism in the heat sealing apparatus of FIG. 1;

FIG. 13-2 is a schematic perspective view of the cross sealing mechanism of FIG. 13-1 from another perspective;

FIG. 14-1 is a front view of the cross-sealing mechanism shown in FIG. 13-1;

FIG. 14-2 is a side view of the cross-sealing mechanism shown in FIG. 13-1;

FIG. 15 is a schematic perspective view of a ball screw mechanism of the cross sealing mechanism shown in FIG. 13-1;

FIG. 16 is a schematic perspective view of a support guide displacement mechanism of the horizontal sealing mechanism shown in FIG. 13-1;

FIG. 17-1 is a schematic perspective view of a cross sealing mechanism of the cross sealing mechanism of FIG. 13-1;

FIG. 17-2 is a schematic perspective view of the cross-sealing mechanism of FIG. 17-1 from another perspective;

fig. 18 is a top view of the cross-sealing mechanism of fig. 17-1.

In the figure:

1-longitudinal sealing guide sleeve component 2-rear connecting plate 3-cylinder connecting column

4-far longitudinal cylinder 5-fixed small piece 6-pin shaft

7-left rotating block 8-rotating shaft 9-connecting rotating plate

10-gear shaft 11-switch baffle 12-supporting plate

13-first longitudinal moving cylinder 14-front supporting block 15-upper and lower connecting plates

16-middle connecting plate 17-rear supporting block 18-supporting shaft block

19-longitudinal sealing dust blowing pipe 22-longitudinal sealing former 23-dust blowing pipe locking support

26-rotating shaft 27-handle knob 28-longitudinal opening large plate

29-second box type linear bearing seat 30-longitudinal sealing and opening cylinder 31-longitudinal opening support plate

32-longitudinal sealing block module 33-fixed baffle 34-linear bearing guide sleeve

35-pressure spring 36-copper-based steel ball retaining sleeve 37-longitudinal sealing movable guide shaft

38-floating joint 39-longitudinal moving guide shaft 40-first box type linear bearing seat

41-longitudinal moving cylinder 42-longitudinal moving connecting block 43-longitudinal sealing block

44-heating rod 45-longitudinal sealing press shaft 46-thin cylinder backing plate

47-longitudinal sealing fixed block 48-longitudinal sealing clapboard 49-thick cylinder cushion plate

50-shaft sleeve 51-die pressure spring 52-longitudinal seal adjusting nut

53-longitudinal supporting block 54-middle connecting fixing plate 55-longitudinal rear fixing plate

56-longitudinal sealing former back plate 57-longitudinal sealing front forming block 58-longitudinal sealing film pressing plate

59-longitudinal sealing guide membrane 60-longitudinal sealing backing plate 61-longitudinal sealing and opening mechanism

62-longitudinal tapping fixing plate 63-longitudinal tapping guide shaft 64-tapping knife

65-knife pressing plate 66-longitudinal sealing fixing large plate 67-longitudinal sealing mechanism

68-transverse sealing mechanism 69-pocket upper former 70-ball screw mechanism

71-upper nut 72-transverse sealing connecting plate 73-transverse sealing movable connecting plate

74-transverse sealing lifting ball screw 75-transverse sealing screw bearing seat 76-coupler

77-transverse sealing rear motor fixing seat 78-servo motor 80-support guiding displacement mechanism

81-wallboard fixing plate 82-transverse sealing up-down moving guide shaft 83-guide shaft fixing plate

84-middle support plate 85-reinforcing plate 86-auxiliary lifting cylinder

87-cushion pad 88-longitudinal sealing air blowing pipe 89-longitudinal sealing air blowing pipe fixing block

90-transverse sealing mechanism 91-transverse sealing rear plate 92-transverse sealing reinforcing plate

93-rear transverse sealing block 94-transverse reinforcing plate 95-transverse sealing movable fixing plate

96-adjusting guide shaft 97-first linear bearing 98-transverse sealing side connecting plate

99-transverse sealing short rack 100-transverse sealing gear 101-transverse sealing front plate

102-transverse sealing cylinder 103-front transverse sealing block 104-transverse sealing guide shaft

105-exhaust fixing plate 106-exhaust front plate 107-exhaust reinforcing plate

108-second linear bearing 109-transverse sealing heating rod 110-floating joint

111-horizontal sealing heat insulation board

Detailed Description

The present invention will be further described with reference to the following drawings and specific examples, but the following examples are by no means limiting the present invention.

As shown in fig. 1-1, fig. 1-2, fig. 1-3 and fig. 1-4, the present invention provides a heat sealing device for a multi-row bag packaging machine, which comprises a bag forming mechanism, a longitudinal sealing mechanism 67 and a transverse sealing mechanism 68, all of which are fixed to a frame.

As shown in fig. 2-1, fig. 2-2, fig. 2-3, fig. 3-1, fig. 3-2, and fig. 3-3, the longitudinal sealing mechanism 67 includes a longitudinal sealing fixing large plate 66, four groups of longitudinal sealing guide sleeve components 1, and two far longitudinal cylinders 4, the four groups of longitudinal sealing guide sleeve components 1 are respectively installed on the left and right ends of the longitudinal sealing fixing large plate 66 two by two, and the longitudinal sealing fixing large plate 66 is fixed on the frame. The longitudinal sealing guide sleeve component 1 comprises a linear bearing guide sleeve 34, a longitudinal sealing movable guide shaft 37 is arranged in the linear bearing guide sleeve 34, a thrust step is arranged in the middle of the linear bearing guide sleeve 34, and a copper-based steel ball retaining sleeve 36 and a pressure spring 35 are sleeved on the longitudinal sealing movable guide shaft 37 and positioned at two ends of the thrust step; four corners of the large longitudinal sealing fixing plate 66 are provided with through holes, each through hole penetrates through one longitudinal sealing guide sleeve component 1, and each longitudinal sealing guide sleeve component 1 is fixed on the large longitudinal sealing fixing plate 66 through a flange of a linear bearing guide sleeve 34; the longitudinal sealing movable guide shaft 37 penetrates through the copper-based steel ball retaining sleeve 36 in the linear bearing guide sleeve 34, the rear ends of the longitudinal sealing movable guide shafts 37 on the two longitudinal sealing guide sleeve components 1 on the same side on the longitudinal sealing fixed large plate 66 are simultaneously connected with the rear connecting plate 2, and the front ends of the two longitudinal sealing movable guide shafts 37 are simultaneously connected with the supporting shaft block 18 (including a shaft sleeve); one compression spring 35 on the longitudinal sealing movable guide shaft 37 is compressed between one copper-based steel ball retaining sleeve 36 and the rear connecting plate 2, and the other compression spring 35 on the longitudinal sealing movable guide shaft 37 is compressed between the other copper-based steel ball retaining sleeve 36 and the supporting shaft block 18.

The two far longitudinal cylinders 4 are respectively arranged between the two groups of longitudinal sealing guide sleeve parts 1 at the same end; the rear ends of two groups of longitudinal sealing guide sleeve components 1 at the same end are connected with a rear connecting plate 2, and the piston rod end of the far longitudinal cylinder 4 is tightly locked at the middle part of the rear connecting plate 2 through a cylinder connecting column 3; the front ends of two groups of longitudinal sealing guide sleeve parts 1 at the same end are connected with a supporting shaft block 18; the supporting shaft blocks 18 at the left end and the right end are respectively provided with an upper longitudinal shaft sleeve and a lower longitudinal shaft sleeve which are coaxial, and a pin shaft 6 passes through the two longitudinal shaft sleeves at the two ends; the pin shaft 6 at the left end is connected with a left end opening and closing or locking mechanism; the pin shaft 6 at the right end is connected with a longitudinal sealing rotating arm. As shown in fig. 2-1, 2-2 and 2-3, the left-end opening/closing or locking mechanism includes a left rotating block 7 sleeved on a pin 6 at the left end (i.e., a supporting shaft block 18 at the left end is connected with the left rotating block 7 through the pin 6 and a fixing small piece 5), a connecting rotating plate 9 is fixed on the left rotating block 7, a rotating shaft 26 is arranged on the connecting rotating plate 9, a supporting plate 12 is installed at the bottom of the connecting rotating plate 9, the rotating shaft 26 is connected with one end of a fixing baffle 33, a rotating shaft 8 is fastened on the fixing baffle 33, and a handle is installed on the rotating shaft 8; the rotating handle drives the fixed baffle 33 to rotate around the rotating shaft 26 through the rotating shaft 8.

As shown in fig. 4-1, 4-2, 4-3 and 5, one end of the longitudinal sealing rotating arm is connected with a pin shaft 6 at the right end, and the other end of the longitudinal sealing rotating arm is connected with or disconnected from a left-end opening and closing or locking mechanism; the rear side of the longitudinal sealing rotating arm is provided with a longitudinal sealing block module 32 driven by a longitudinal moving structure; the longitudinal sealing rotating arm comprises a front supporting block 14 and a rear supporting block 17 connected with a pin shaft at the right end, an upper connecting plate 15 and a lower connecting plate 15 are connected between the front supporting block 14 and the rear supporting block 17, a middle connecting plate 16 is arranged between the two connecting plates 15, a switch baffle plate 11 is arranged on the front supporting block 14, and the switch baffle plate 11 is supported by the supporting plate 12 from the lower part; the switch baffle plate 11 is provided with a baffle shaft 10 and a handle knob 27; the rotating handle drives the fixed baffle 33 to rotate around the rotating shaft 26 through the rotating shaft 8, so that the fixed baffle 33 is lapped on the blocking shaft 10 or separated from the blocking shaft 10. The longitudinal movement structure comprises a first longitudinal movement cylinder 13 and a second longitudinal movement cylinder 41, the first longitudinal movement cylinder 13 is fixed on the front side of the front supporting block 14, the second longitudinal movement cylinder 41 is fixed on the rear supporting block 17, and the axes of the piston rods of the first longitudinal movement cylinder 13 and the second longitudinal movement cylinder 41 are parallel; the first longitudinal moving cylinder 13 and the second longitudinal moving cylinder 41 are both provided with longitudinal moving guide shafts 39 coaxially connected with respective piston rods, both ends of the longitudinal sealing block module 32 are fixed with first box-type linear bearing seats 40 matched with the longitudinal moving guide shafts 39, and the first box-type linear bearing seats 40 matched with each other and the longitudinal moving guide shafts 39 form a guide shaft slider mechanism.

The first longitudinal moving cylinder 13 and the second longitudinal moving cylinder 41 drive the longitudinal sealing block module 32 to move axially along the longitudinal moving guide shaft 39. Because there may be a distance between the two first box-type linear bearing seats 40 and the longitudinal seal block module 32, the top end of the piston rod of the first longitudinal movement cylinder 13 may be connected with a longitudinal movement connecting block 42 through a floating joint 38, and a thin cylinder backing plate 46 is fixed between the longitudinal movement connecting block 42 and the first box-type linear bearing seat 40 at the end; the same is true. Another longitudinal moving connecting block can be connected to the top end of the piston rod of the second longitudinal moving cylinder 41 through another floating joint, and a thick cylinder backing plate 49 is fixed between the longitudinal moving connecting block and the first box-type linear bearing seat 40 at the end (the thickness is opposite, and the distance between the first box-type linear bearing seat at the end and the longitudinal sealing block module 32 is determined); as shown in fig. 5, 6 and 7, it can be seen that the longitudinal seal block module 32 is fixedly mounted between the thin cylinder liner plate 46 and the thick cylinder liner plate 49.

As shown in fig. 8-1, 8-2 and 9, the vertical sealing block module 32 includes a plurality of vertical sealing blocks 43, a heating rod 44 is inserted into each vertical sealing block 43, a vertical sealing shaft 45 (stepped shaft) is connected to a side surface of each vertical sealing block 43, each vertical sealing block 43 is fixed by a vertical sealing fixing block 47, a shaft sleeve 50 is arranged in each vertical sealing fixing block 47, one end of each shaft sleeve 50 is a shaft shoulder, the other end of each shaft sleeve 50 is provided with an external thread to be screwed with a vertical sealing adjusting nut 52, and a mold pressure spring 51 is arranged between the stepped shaft of each vertical sealing shaft 45 and the vertical sealing adjusting nut 52. The end of the longitudinal sealing pressure shaft 45 is provided with a screw rod with external threads, and the screw rod penetrates out of a middle hole of the longitudinal sealing adjusting nut 52. As shown in fig. 5 and 7, adjacent longitudinal sealing fixing blocks 47 are connected by a longitudinal sealing partition plate 48.

As shown in fig. 10-1, fig. 10-2, fig. 10-3, fig. 10-4, fig. 10-5, and fig. 10-6, the pocket forming mechanism includes two longitudinal support blocks 53 and a longitudinal rear fixing plate 55, rear ends of the two longitudinal support blocks 53 are fastened to the longitudinal sealing fixing plate 66 (i.e., are fixedly connected to a frame of the apparatus), front ends of the two longitudinal support blocks 53 are respectively fixed to the longitudinal rear fixing plate 55, an intermediate connecting fixing plate 54 is mounted on the longitudinal rear fixing plate 55, a pocket upper former 69 is mounted at a top end of the intermediate connecting fixing plate 54, the pocket upper former 69 includes N arc grooves, and N groups of longitudinal sealing formers 22 are disposed in front of the intermediate connecting fixing plate 54; the longitudinal sealing former 22 consists of a longitudinal sealing former rear plate 56 and a longitudinal sealing former front forming block 57 which are fixed in front of the intermediate connecting fixing plate 54, when a film is replaced or debugged, the longitudinal sealing former rear plate 56 and the intermediate connecting fixing plate 54 cannot be detached, the longitudinal sealing former forming block 57 can be detached, a front-back opening and closing mode is adopted to facilitate film replacement, debugging and the like, a longitudinal sealing film plate 58 is arranged in front of the longitudinal sealing former 22, and a longitudinal sealing guide film plate 59 is arranged at the upper part of the longitudinal sealing former 22; as can be seen from fig. 10-4, 10-5 and 10-6, the longitudinal seal former rear plate 56 and the longitudinal seal former front forming block 57 are folded to form a pocket arc surface, and the pocket arc surfaces of the N groups of longitudinal seal formers 22 are respectively communicated with the N arc grooves on the pocket upper former 69 and are in coaxial positions; as shown in fig. 1-1 and fig. 2-2, a dust blowing pipe locking bracket 23 is arranged above the intermediate connection fixing plate 54, a longitudinal sealing dust blowing pipe 19 is fixed on the dust blowing pipe locking bracket 23, and an air outlet of the longitudinal sealing dust blowing pipe 19 is positioned at a position right opposite to the lower part of the bag upper former 69.

The bottom of the intermediate connection fixing plate 54 in the material bag forming mechanism is provided with a longitudinal sealing and opening mechanism 61, as shown in fig. 11-1, 11-2 and 12, the longitudinal sealing and opening mechanism 61 comprises a longitudinal opening base plate 60 fixed on the intermediate connection fixing plate 54, a longitudinal opening big plate 28 is fixed on the longitudinal opening base plate 60, a longitudinal sealing and opening cylinder 30 is arranged at the bottom of the longitudinal opening big plate 28, two sides of the longitudinal sealing and opening cylinder 30 are respectively provided with a second box type linear bearing seat 29, longitudinal opening guide shafts 63 are respectively arranged in the two second box type linear bearing seats 29, one end of a piston rod of the longitudinal sealing and opening cylinder 30 and one end of the two longitudinal opening guide shafts 63 are respectively connected with one end of a longitudinal opening supporting plate 31, the other ends of the three longitudinal opening supporting plates 31 are respectively connected with one surface of the same opening fixing plate 62, the other surface of the opening fixing plate 62 is provided with a plurality of cutter pressing plates 65, a punching knife 64 is fastened between each knife pressing plate 65 and the longitudinal punching fixing plate 62.

As shown in fig. 13-1, 13-2, 14-1 and 14-2, the traverse sealing mechanism 68 includes a ball screw mechanism 70, a support guide displacement mechanism 80 and a traverse sealing mechanism 90.

As shown in fig. 15, the ball screw mechanism 70 includes a horizontal sealing lifting ball screw 74 driven by a servo motor 78, the servo motor 78 is fixed on a horizontal sealing rear motor fixing seat 77, the horizontal sealing rear motor fixing seat 77 is installed on the rack, an output shaft end of the servo motor 78 is connected with the horizontal sealing lifting ball screw 74 through a coupling 76, a bottom of the horizontal sealing lifting ball screw 74 is supported by a horizontal sealing screw bearing seat 75, and the horizontal sealing screw bearing seat 75 is fixed with the rack; the upper portion of horizontal seal lift ball 74 is equipped with encirclement nut 71, it moves connecting plate 73 to be equipped with horizontal seal on the nut 71 to go up, be fixed with horizontal seal connecting plate 72 on the horizontal seal moves connecting plate 73, goes up encirclement nut 71 and horizontal seal lift ball 74 and forms ball screw cooperation.

As shown in fig. 16, the supporting and guiding displacement mechanism 80 includes four wall plate fixing plates 81 fixed to the frame, the four wall plate fixing plates 81 are symmetrically arranged in left-right and up-down directions, a guide shaft fixing plate 83 is fixed to each of the upper left-right symmetric wall plate fixing plates 81, a middle supporting plate 84 is fixed to each of the lower left-right symmetric wall plate fixing plates 81, a reinforcing plate 85 is disposed at the bottom of the middle supporting plate 84 located below the middle supporting plate, and an auxiliary lifting cylinder 86 is installed outside the middle supporting plate 84; two transverse sealing up-down moving guide shafts 82 are arranged between the guide shaft fixing plate 83 and the middle support plate 84 on the same left or right side, and a cushion pad 87 is arranged below the root parts of the transverse sealing up-down moving guide shafts 82; a longitudinal sealing air blowing pipe fixing block 89 is fixed on the outer edge of the guide shaft fixing plate 83, and a longitudinal sealing air blowing pipe 88 is installed on the longitudinal sealing air blowing pipe fixing block 89.

As shown in fig. 17-1 and 17-2, the transverse sealing mechanism 90 includes a main frame, a transverse reinforcing plate 94 is disposed at a middle position of an upper portion of the main frame, the main frame includes two transverse sealing side connecting plates 98, a transverse sealing rear plate 91 and a transverse sealing front plate 101, a transverse sealing reinforcing plate 92 is disposed on the transverse sealing rear plate 91, and an adjusting guide shaft 96 and a transverse sealing guide shaft 104 are fixed between the transverse sealing rear plate 91 and the transverse sealing front plate 101; the adjusting guide shaft 96 and the transverse sealing guide shaft 104 are both provided with two first linear bearings 97, the two first linear bearings 97 are sleeved with a front transverse sealing moving fixing plate 95 and a rear transverse sealing moving fixing plate 95, the front of the rear transverse sealing moving fixing plate 95 is provided with a rear transverse sealing block 93 with a transverse sealing heating rod 109, the rear of the front transverse sealing moving fixing plate 95 is provided with a front transverse sealing block 103 with a transverse sealing heating rod 109, and transverse sealing heat insulation plates 111 are arranged between the transverse sealing moving fixing plate 95 and the front transverse sealing block 103 as well as between the rear transverse sealing block 93 and the front transverse sealing block 103, as shown in fig. 18. Two ends of the upper part of the front transverse sealing moving fixing plate 95 are respectively provided with a transverse sealing short rack 99, two ends of the lower part of the rear transverse sealing moving fixing plate 95 are respectively provided with a transverse sealing short rack 99, the transverse sealing side connecting plates 98 are provided with two second linear bearings 108, and the middle positions of the inner sides of the two transverse sealing side connecting plates 98 are respectively provided with a transverse sealing gear 100 meshed with the upper and lower transverse sealing short racks 99; the outside of the horizontal sealing front plate 101 is provided with a horizontal sealing cylinder 102, the top end of the cylinder rod of the horizontal sealing cylinder 102 is connected with a floating joint 110, and the floating joint 110 penetrates into the main frame through a through hole on the horizontal sealing front plate 101 and is connected with a horizontal sealing movable fixing plate 95 at the front end.

The bottom of horizontal involution mechanism 90 is equipped with wrapping bag exhaust structure, wrapping bag exhaust structure includes the laminating is fixed with two exhaust fixed plates 105 on two horizontal sealed removal fixed plates 95 around in horizontal involution mechanism 90, all is fixed with vertical exhaust front bezel 106 on two relative inboards of exhaust fixed plate 105, with the gas outgoing in the wrapping bag when two horizontal sealed removal fixed plates 95 of horizontal sealed removal fixed plates around horizontal involution mechanism 90 are removed. The distance between the two vented front panels 106 in the venting structure of the bag is determined by the amount of material in the bag.

As shown in fig. 17-1, 17-2 and 18, two second linear bearings 108 are disposed on each of the transverse sealing side connecting plates 98 in the transverse sealing mechanism 90, and the two transverse sealing up-and-down moving guide shafts 82 on the same left or right side in the support guide displacement mechanism 80 are respectively engaged with the two second linear bearings 108 on each of the transverse sealing side connecting plates 98; as shown in fig. 16, a piston rod end fixing seat is installed at the bottom end of the transverse sealing front plate 101 in the transverse sealing mechanism 90, the piston rod end fixing seat is coaxial with the piston rod of the auxiliary lifting cylinder 86 in the support guide displacement mechanism 80, and the piston rod end of the auxiliary lifting cylinder 86 is fixed to the piston rod end fixing seat; thereby connecting the cross-sealing mechanism 90 to the support and guide displacement mechanism 80.

As shown in fig. 13-1, 13-2 and 15, the cross seal connecting plate 72 of the ball screw mechanism 70 is fixed to the cross seal rear plate 91 of the cross seal mechanism 90, thereby connecting the cross seal mechanism 90 to the ball screw mechanism 70.

The utility model discloses the working process of heat sealing device is, as shown in figure 1-1, figure 1-2, figure 1-3 and figure 1-4, figure 2-1, figure 2-2 and figure 2-3, when carrying out the package encapsulation, the piston rod of far indulging cylinder 4 stretches out, and cylinder spliced pole 3 promotes back connecting plate 2 and moves backward, under the effect of indulging a guide pin bushing mechanism 1, both ends supporting shaft piece 18 drives preceding supporting block 14 and back supporting block 17 and whole indulging a seal piece module 32 and get into work area. After the dust of the packaging bag film is removed by compressed air blown out from an air blowing port of the longitudinal sealing dust blowing pipe 19, the packaging bag film enters a longitudinal sealing mechanism 67 along a material bag upper former 69, as shown in fig. 10-3, fig. 10-4 and fig. 10-6, a cylindrical strip-shaped bag is formed under the action of a longitudinal sealing former rear plate 56 and a longitudinal sealing front forming block 57, two sides of the film are folded to form a longitudinal sealing edge of the strip-shaped bag, the longitudinal sealing edge is attached to the inclined surface of the longitudinal sealing front forming block 57 under the action of a longitudinal sealing guide diaphragm 59 and a longitudinal sealing diaphragm plate 58, as shown in fig. 4-1, fig. 4-2 and fig. 5, piston rods of a first longitudinal moving cylinder 13 and a second longitudinal moving cylinder 41 extend out, a longitudinal moving connecting block 42 connected to the tail end of a floating joint 38 is pushed out, a longitudinal sealing block module 32 is folded with the longitudinal sealing front forming block 57, and the sealing edge of the strip; the piston rod of the longitudinal sealing and opening cylinder 30 retracts, the longitudinal opening supporting plate 31 pulls back the longitudinal opening fixing plate, and as shown in fig. 11-1, fig. 11-2 and fig. 12, the opening knife 64 fixed on the longitudinal sealing and opening mechanism 61 cuts an edge of the longitudinal sealing edge; when the piston rods of the first longitudinal moving cylinder 13 and the second longitudinal moving cylinder 41 retract, the longitudinal moving connecting block 42 connected to the tail end of the floating joint 38 is pulled back, the longitudinal sealing block module 32 is separated from the longitudinal pre-sealing forming block 57, and the longitudinal sealing edge of the strip-shaped bag is sealed; at this time, the piston rod of the vertical sealing and opening-opening cylinder 30 extends out, the opening knife 64 returns to the original position, and the vertical sealing and opening operation is completed. As shown in fig. 16, the vertical sealing blowpipe attached to the outer edge of the guide shaft fixing plate 83 blows compressed air to cool the vertical sealing edge that has just been sealed.

As shown in fig. 13-1, 13-2 and 15, the output torque of the servo motor 78 is transmitted to the horizontal sealing elevating ball screw 74 of the ball screw mechanism 70 through the coupling 76, and the upper nut 71 drives the horizontal sealing moving connecting plate 72, the horizontal sealing connecting plate 73 and the entire horizontal sealing mechanism 90 connected thereto to move upward along the horizontal sealing up-down moving guide shaft 82 of the support guide displacement mechanism 80 under the cooperation of the ball screw nuts to reach the horizontal sealing up position. As shown in fig. 17-1, 17-2 and 18, when the piston rod of the horizontal sealing cylinder 102 is extended, the front horizontal sealing movable fixing plate 95 connected to the floating joint 110 at the top end of the piston rod moves backwards, the horizontal sealing short rack 99 installed at the upper end of the horizontal sealing movable fixing plate 95 moves backwards at the same time, so that the horizontal sealing gear 100 engaged with the horizontal sealing movable fixing plate rotates, and due to the engagement relationship, the horizontal sealing short rack 99 installed at the lower end of the rear horizontal sealing movable fixing plate 95 moves forwards at the same time, so that the rear horizontal sealing movable fixing plate 95 drives the rear horizontal sealing block 93 and the front horizontal sealing block 103 installed on the front horizontal sealing movable fixing plate 95 to move towards each other and close for horizontal sealing. The servo motor 78 reverses the output torque and the transverse sealing mechanism 90 carries the back sealed package down to the transverse sealing lower position (the distance between the transverse sealing upper position and the transverse sealing lower position is one bag length and less than the length of the longitudinal sealing block 25). The piston rod of the transverse sealing cylinder 102 retracts, the front transverse sealing movable fixing plate 95 moves forwards, the transverse sealing short rack 99 at the upper end moves forwards, the transverse sealing gear 100 rotates reversely, the transverse sealing short rack 99 which is meshed with the transverse sealing movable fixing plate and is arranged at the lower end of the rear transverse sealing movable fixing plate 95 moves backwards, the rear transverse sealing movable fixing plate 95 also moves backwards, the front sealing block 103 and the rear sealing block 93 which finish transverse sealing of the material bag are clamped to be separated, and transverse sealing is finished. In the transverse sealing process, when the front transverse sealing block 103 and the rear transverse sealing block 93 are closed, the two lower exhaust front plates 106 extrude the material bag to be sealed, at the moment, the gas which is too full in the material bag can be extruded and discharged from the sealing position to be sealed at the upper part, and thus, the sealed packaging bag cannot be too full.

During normal production work, the longitudinal sealing mechanism 67 and the transverse sealing mechanism 68 are always in a sealing work area, when all packages are sealed, the piston rod of the longitudinal cylinder 4 retracts, the cylinder connecting column 3 pulls the rear connecting plate 2 to move forwards, and under the action of the longitudinal sealing guide sleeve mechanism 1, the supporting shaft blocks 18 at the two ends drive the front supporting block 14, the rear supporting block 17 and the whole longitudinal sealing block module 32 to exit from the sealing work area.

Although the present invention and the heat sealing device for a multiple row bag packaging machine have been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit of the present invention, and all of them fall within the protection scope of the present invention.

Claims (8)

1. A heat sealing device for a multi-row bag packaging machine comprises a material bag forming mechanism, a longitudinal sealing mechanism (67) and a transverse sealing mechanism (68) which are fixed with a machine frame; the method is characterized in that:

the longitudinal sealing mechanism (67) comprises a longitudinal sealing fixed large plate (66), four groups of longitudinal sealing guide sleeve components (1) and two far longitudinal cylinders (4), the four groups of longitudinal sealing guide sleeve components (1) are respectively arranged at the left end and the right end of the longitudinal sealing fixed large plate (66) in pairs, and the longitudinal sealing fixed large plate (66) is fixed on the rack; two far longitudinal cylinders (4) are respectively arranged between two groups of longitudinal sealing guide sleeve parts (1) at the same end; the rear ends of two groups of longitudinal sealing guide sleeve components (1) at the same end are connected with a rear connecting plate (2), and the piston rod end of the far longitudinal cylinder (4) is tightly locked at the middle part of the rear connecting plate (2) through a cylinder connecting column (3); the front ends of two groups of longitudinal sealing guide sleeve parts (1) at the same end are connected with a supporting shaft block (18); the supporting shaft blocks (18) at the left end and the right end are respectively provided with an upper section of longitudinal shaft sleeve and a lower section of longitudinal shaft sleeve which are coaxial, and a pin shaft (6) passes through the two sections of longitudinal shaft sleeves at the two ends; a left end opening and closing or locking mechanism is connected on the pin shaft (6) at the left end; a longitudinal sealing rotating arm is connected to a pin shaft (6) at the right end, one end of the longitudinal sealing rotating arm is connected with the pin shaft (6) at the right end, and the other end of the longitudinal sealing rotating arm is connected with or disconnected from an opening and closing or locking mechanism at the left end; a longitudinal sealing block module (32) driven by a longitudinal moving structure is arranged at the rear side of the longitudinal sealing rotating arm;

the material bag forming mechanism comprises two longitudinal supporting blocks (53) and a longitudinal rear fixing plate (55), the rear ends of the two longitudinal supporting blocks (53) are fastened on the longitudinal sealing fixing large plate (66), the front ends of the two longitudinal supporting blocks (53) are respectively fixed with the longitudinal rear fixing plate (55), an intermediate connecting fixing plate (54) is mounted on the longitudinal rear fixing plate (55), a material bag upper former (69) is mounted at the top end of the intermediate connecting fixing plate (54), the material bag upper former (69) comprises N arc grooves, and N groups of longitudinal sealing formers (22) are arranged in front of the intermediate connecting fixing plate (54); the longitudinal sealing former (22) consists of a longitudinal sealing former rear plate (56) and a longitudinal sealing former front forming block (57), the longitudinal sealing former rear plate is fixed in front of the intermediate connecting fixing plate (54), a longitudinal sealing film plate (58) is arranged in front of the longitudinal sealing former (22), and a longitudinal sealing guide film plate (59) is arranged at the upper part of the longitudinal sealing former; the longitudinal seal former rear plate (56) and the longitudinal seal former front forming block (57) are folded to form a material bag arc surface, and the material bag arc surfaces of the N groups of longitudinal seal formers (22) are respectively communicated with the N arc grooves on the material bag upper former (69) up and down and are positioned at the same axial position;

the transverse sealing mechanism (68) comprises a ball screw mechanism (70), a supporting guide displacement mechanism (80) and a transverse sealing mechanism (90):

the ball screw mechanism (70) comprises a transverse sealing lifting ball screw (74) driven by a servo motor (78), the bottom of the transverse sealing lifting ball screw (74) is supported by a transverse sealing screw bearing seat (75), and the transverse sealing screw bearing seat (75) is fixed with the rack; an upper camp nut (71) is arranged at the upper part of the transverse sealing lifting ball screw (74), a transverse sealing moving connecting plate (73) is arranged on the camp nut (71), and a transverse sealing connecting plate (72) is fixed on the transverse sealing moving connecting plate (73);

the supporting guide displacement mechanism (80) comprises four wallboard fixing plates (81) fixed with the rack, the four wallboard fixing plates (81) are respectively and symmetrically arranged in the left-right direction and the up-down direction, a guide shaft fixing plate (83) is fixed on each of the two wallboard fixing plates (81) which are bilaterally symmetrical at the upper part, a middle supporting plate (84) is fixed on each of the two wallboard fixing plates (81) which are bilaterally symmetrical at the lower part, and an auxiliary lifting cylinder (86) is installed on the outer side of each middle supporting plate (84); two transverse sealing up-down moving guide shafts (82) are arranged between the guide shaft fixing plate (83) and the middle supporting plate (84) on the same left or right side, and a cushion pad (87) is arranged below the root parts of the transverse sealing up-down moving guide shafts (82); the outer edge of the guide shaft fixing plate (83) is provided with a longitudinal sealing air blowing pipe (88);

the transverse sealing mechanism (90) comprises a main frame, a transverse reinforcing plate (94) is arranged in the middle of the upper portion of the main frame, the main frame comprises two transverse sealing side connecting plates (98), a transverse sealing rear plate (91) and a transverse sealing front plate (101), and an adjusting guide shaft (96) and a transverse sealing guide shaft (104) are fixed between the transverse sealing rear plate (91) and the transverse sealing front plate (101); two first linear bearings (97) are respectively arranged on the adjusting guide shaft (96) and the transverse sealing guide shaft (104), a front transverse sealing moving fixing plate (95) and a rear transverse sealing moving fixing plate (95) are sleeved on the two first linear bearings (97), a rear transverse sealing block (93) with a transverse sealing heating rod (109) is arranged in front of the rear transverse sealing moving fixing plate (95), a front transverse sealing block (103) with a transverse sealing heating rod (109) is arranged behind the front transverse sealing moving fixing plate (95), two transverse sealing short racks (99) are respectively arranged at two ends of the upper part of the front transverse sealing moving fixing plate (95), two transverse sealing short racks (99) are respectively arranged at two ends of the lower part of the rear transverse sealing moving fixing plate (95), two second linear bearings (108) are arranged on the transverse sealing side connecting plates (98), and transverse sealing gears (100) meshed with the upper transverse sealing short rack (99) and the lower transverse sealing short rack (99) are respectively arranged at the middle positions of the inner sides of the two transverse sealing side connecting plates (98); a transverse sealing cylinder (102) is arranged on the outer side of the transverse sealing front plate (101), the top end of a cylinder rod of the transverse sealing cylinder (102) is connected with a floating joint (110), and the floating joint (110) penetrates into the main frame through a through hole in the transverse sealing front plate (101) and is connected with a transverse sealing movable fixing plate (95) at the front end;

two second linear bearings (108) are arranged on each transverse sealing side connecting plate (98) in the transverse sealing mechanism (90), and two transverse sealing up-down moving guide shafts (82) on the same left or right side in the supporting guide displacement mechanism (80) are respectively matched with the two second linear bearings (108) on each transverse sealing side connecting plate (98); a piston rod end fixing seat is installed at the bottom end of a transverse sealing front plate (101) in the transverse sealing mechanism (90), the piston rod end fixing seat is coaxial with a piston rod of an auxiliary lifting cylinder (86) in the supporting and guiding displacement mechanism (80), and the piston rod end of the auxiliary lifting cylinder (86) is fixed with the piston rod end fixing seat; thereby connecting the transversal sealing mechanism (90) with the support-guide-displacement mechanism (80);

and a transverse sealing connecting plate (72) in the ball screw mechanism (70) is fixed with a transverse sealing rear plate (91) in the transverse sealing mechanism (90), so that the transverse sealing mechanism (90) is connected with the ball screw mechanism (70).

2. The heat sealing device for multiple columns of bag packaging machines according to claim 1, wherein the bottom of the transverse sealing mechanism (90) is provided with a bag venting structure, the bag venting structure comprises two venting fixed plates (105) attached to the front and back transverse sealing movable fixed plates (95) in the transverse sealing mechanism (90), a vertical venting front plate (106) is fixed on the opposite inner sides of the two venting fixed plates (105), and the front and back transverse sealing movable fixed plates (95) of the transverse sealing mechanism (90) vent the gas in the bag while moving transversely.

3. A heat sealing apparatus for a multi-row pouch packaging machine according to claim 2, wherein the distance between two vented front panels (106) in the venting structure of the package is determined according to the amount of material in the package.

4. The heat sealing device for the multiple columns of the bagged packaging machines according to claim 1, characterized in that the longitudinal sealing guide sleeve component (1) comprises a linear bearing guide sleeve (34), a longitudinal sealing movable guide shaft (37) is arranged in the linear bearing guide sleeve (34), a thrust step is arranged at the middle part of the linear bearing guide sleeve (34), and copper-based steel ball retaining sleeves (36) and a pressure spring (35) are sleeved on the longitudinal sealing movable guide shaft (37) and positioned at two ends of the thrust step; four corners of the large longitudinal sealing fixing plate (66) are provided with through holes, each through hole penetrates through one longitudinal sealing guide sleeve component (1), and each longitudinal sealing guide sleeve component (1) is fixed on the large longitudinal sealing fixing plate (66) through a flange of a linear bearing guide sleeve (34);

the longitudinal sealing movable guide shaft (37) penetrates through a copper-based steel ball retaining sleeve (36) in the linear bearing guide sleeve (34), the rear ends of the longitudinal sealing movable guide shafts (37) on two longitudinal sealing guide sleeve components (1) on the same side of the longitudinal sealing fixed large plate (66) are simultaneously connected with the rear connecting plate (2), and the front ends of the two longitudinal sealing movable guide shafts (37) are simultaneously connected with the supporting shaft block (18); one pressure spring (35) on the longitudinal seal moving guide shaft (37) is pressed between one copper-based steel ball retaining sleeve (36) and the rear connecting plate (2), and the other pressure spring (35) on the longitudinal seal moving guide shaft (37) is pressed between the other copper-based steel ball retaining sleeve (36) and the supporting shaft block (18).

5. The heat sealing device for the multiple columns of the bagged packaging machines according to claim 1, wherein the left end opening and closing or locking mechanism comprises a left rotating block (7) sleeved on a left end pin shaft (6), a connecting rotating plate (9) is fixed on the left rotating block (7), a rotating shaft (26) is arranged on the connecting rotating plate (9), a supporting plate (12) is arranged at the bottom of the connecting rotating plate (9), the rotating shaft (26) is connected with one end of a fixed baffle (33), a rotating shaft (8) is fastened on the fixed baffle (33), and a handle is arranged on the rotating shaft (8); the rotating handle drives the fixed baffle (33) to rotate around the rotating shaft (26) through the rotating shaft (8).

6. The heat-sealing device for multi-column pouch packaging machines according to claim 5, wherein the longitudinal sealing rotating arm comprises a front supporting block (14) and a rear supporting block (17) connected with a pin shaft at the right end, an upper connecting plate and a lower connecting plate (15) are connected between the front supporting block (14) and the rear supporting block (17), a middle connecting plate (16) is arranged between the two connecting plates (15), a switch baffle plate (11) is arranged on the front supporting block (14), and the switch baffle plate (11) is supported by the supporting plate (12) from below; the switch baffle (11) is provided with a baffle shaft (10) and a handle knob (27); the rotating handle drives the fixed baffle (33) to rotate around the rotating shaft (26) through the rotating shaft (8), so that the fixed baffle (33) is lapped on the baffle shaft (10) or separated from the baffle shaft (10).

7. The heat-sealing device for multi-row pouch packaging machines according to claim 6, wherein said longitudinal-movement structure comprises a first longitudinal-movement cylinder (13) and a second longitudinal-movement cylinder (41), said first longitudinal-movement cylinder (13) being fixed to the front side of said front support block (14), said second longitudinal-movement cylinder (41) being fixed to the rear support block (17), the axes of the piston rods of said first longitudinal-movement cylinder (13) and said second longitudinal-movement cylinder (41) being parallel; the first longitudinal moving cylinder (13) and the second longitudinal moving cylinder (41) are respectively provided with a longitudinal moving guide shaft (39) which is coaxially connected with a respective piston rod, two ends of the longitudinal sealing block module (32) are respectively fixed with a first box type linear bearing seat (40) matched with the longitudinal moving guide shaft (39), the first box type linear bearing seats (40) matched with each other and the longitudinal moving guide shaft (39) form a guide shaft sliding block mechanism, and the first longitudinal moving cylinder (13) and the second longitudinal moving cylinder (41) drive the longitudinal sealing block module (32) to axially move along the longitudinal moving guide shaft (39).

8. The heat sealing device for multiple columns of bagged packaging machines according to claim 1, wherein the bottom of the intermediate connecting fixing plate (54) in the bag forming mechanism is provided with a longitudinal sealing and opening mechanism (61), the longitudinal sealing and opening mechanism (61) comprises a longitudinal opening base plate (60) fixed on the intermediate connecting fixing plate (54), a longitudinal opening large plate (28) is fixed on the longitudinal opening base plate (60), a longitudinal sealing and opening cylinder (30) is arranged at the bottom of the longitudinal opening large plate (28), two sides of the longitudinal sealing and opening cylinder (30) are respectively provided with a second box-type linear bearing seat (29), a longitudinal opening guide shaft (63) is arranged in each of the two second box-type linear bearing seats (29), a piston rod of the longitudinal sealing and opening cylinder (30) and one end of each of the two longitudinal opening guide shafts (63) are respectively connected with one end of a longitudinal opening supporting plate (31), the other ends of the three longitudinal opening support plates (31) are connected with one surface of the same opening fixing plate (62), a plurality of knife pressing plates (65) are arranged on the other surface of the opening fixing plate (62), and a opening cutter (64) is fastened between each knife pressing plate (65) and the longitudinal opening fixing plate (62).

Images