Transverse heat sealing device of chrysanthemum packaging machine

Abstract

The utility model belongs to the field of chrysanthemum packaging, and provides a transverse heat sealing device of a chrysanthemum packaging machine, which comprises a machine table, a material guide cylinder and a vertical plate are respectively arranged in the front and the back of the machine table, a film drawing mechanism and a transverse heat sealing mechanism are respectively arranged at the upper position and the lower position of the vertical plate corresponding to the material guide cylinder, and a wide opening is arranged below the vertical plate. A fixing frame is arranged in the wide opening, a pair of sliding rods is arranged in the fixing frame, a pair of front-back sliding seats are arranged on the sliding rods, a transverse heat sealing plate is arranged on the inner sides of the sliding seats, a pair of connecting plates is rotationally arranged at the rear end of the fixing frame, a short plate is rotationally arranged above the connecting plates, and a long plate is rotationally arranged below the connecting plates. And the long plate and the short plate are rotationally connected with the front sliding seat and the rear sliding seat respectively. Before transverse heat sealing is carried out on the sealing position of the inner packaging bag, the side wall of the inner packaging bag is shifted through the shifting block, so that the opening of the inner packaging bag is close to coincide, and the sealing effect of the inner packaging bag can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chrysanthemum packaging field especially, it relates to a kind of transverse heat sealing device of chrysanthemum packing machine. BACKGROUND

[0002] In order to prolong the shelf life, freshness of chrysanthemum and other mobile solid small particle materials, facilitate collection and better adapt to the needs of different levels of consumers and use, chrysanthemum on the market will adopt small bag, and chrysanthemum is packaged in small bags. The general steps are to weigh chrysanthemum first, then to pack the weighed chrysanthemum into a film inner bag, and then to pack the loaded inner bag into an outer bag to realize the packaging of chrysanthemum.

[0003] When chrysanthemum is packaged into a film inner bag, the film inner bag is generally longitudinally sealed by a longitudinal sealing mechanism first, and then the film inner bag is quantitatively filled into the bag by a feeding cylinder. After the filling is completed, the transverse sealing is realized by a transverse sealing mechanism. The existing transverse sealing mechanism generally includes a fixed frame, a pair of slidable transverse heat sealing plates are arranged in the fixed frame, and the two transverse heat sealing plates are driven by a cylinder. During the transverse heat sealing process, the two cylinders simultaneously drive the transverse heat sealing plates to move, and the transverse heat sealing plates will push the opening of the film inner bag inward until the heat sealing is completed. Although this can also complete the heat sealing, the transverse heat sealing plates may damage the film inner bag during the pushing process, thereby reducing the heat sealing effect. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the purpose of the utility model is to provide a transverse heat sealing device of chrysanthemum packing machine, which aims to solve the problem of poor heat sealing effect of the transverse heat sealing device of the existing chrysanthemum packing machine.

[0005] The utility model adopts the following technical solutions:

[0006] The transverse heat sealing device includes a machine table, a material guiding cylinder and a vertical plate are arranged in front of and behind the machine table respectively, a film pulling mechanism and a transverse heat sealing mechanism are arranged on the vertical plate at positions corresponding to the material guiding cylinder, a wide opening is formed in the lower part of the vertical plate, a fixed frame is arranged in the wide opening, a pair of sliding rods are arranged in the fixed frame, a pair of front and rear sliding seats are arranged on the sliding rods, a transverse heat sealing plate is arranged on the inner side of the sliding seat, a pair of connecting plates are rotatably arranged at the rear end of the fixed frame, a short plate is rotatably arranged above the connecting plates, and a long plate is rotatably arranged below the connecting plates, the long plate and the short plate are rotatably connected with the front and rear sliding seats respectively, a heat sealing cylinder for driving the rear sliding seat to move is further arranged on the fixed frame, a pair of fixed plates are arranged on the front sliding seat, a fixed seat is arranged on the fixed plate, a pair of upper and lower fixed rods are arranged on the fixed seat, a push block is arranged at the inner end of the fixed rod, and the transverse heat sealing plate is located between the upper and lower fixed rods.

[0007] Further, the upper portion of the vertical plate is provided with a pair of notches, the pulling film mechanism comprises a sliding frame installed on the back of the vertical plate, a pair of adjusting seats are slidably arranged on the sliding frame, a connecting barrel is transversely arranged on the adjusting seat, a vertical plate is arranged at the front end of the connecting barrel, a driving motor is arranged at the rear end of the connecting barrel, a pair of up-down pulling film wheels are rotatably arranged on the vertical plate, a belt is arranged between the same pair of pulling film wheels, and the driving motor is used for driving the down pulling film wheel to rotate.

[0008] Further, the upper portion of the vertical plate is provided with a pair of notches, the pulling film mechanism comprises a sliding frame installed on the back of the vertical plate, a pair of adjusting seats are slidably arranged on the sliding frame, a connecting barrel is transversely arranged on the adjusting seat, a vertical plate is arranged at the front end of the connecting barrel, a driving motor is arranged at the rear end of the connecting barrel, a pair of up-down pulling film wheels are rotatably arranged on the vertical plate, a belt is arranged between the same pair of pulling film wheels, and the driving motor is used for driving the down pulling film wheel to rotate.

[0009] Further, two long grooves are respectively arranged on the two transverse heat sealing plates, a pair of cutting air cylinders are arranged in the front sliding seat, and a toothed bar is connected to the driving shaft of the cutting air cylinder and located in the front long groove.

[0010] The beneficial effects of the present application are as follows: the transverse sealing position of the inner packaging bag is located between the two pairs of shifting blocks, when the front and rear sliding seats move towards each other, the two fixed plates move towards the rear together with the front sliding seat, the four shifting blocks move towards the rear and push the side of the sealing position of the inner packaging bag towards the other side, and when the sealing position of the inner packaging bag is close to overlap, the front and rear transverse heat sealing plates heat seal the inner packaging bag. Before transverse heat sealing the sealing position of the inner packaging bag, the shifting blocks shift the side wall of the inner packaging bag, so that the opening of the inner packaging bag is close to overlap, which greatly improves the sealing effect of the inner packaging bag. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a whole view of the transverse heat sealing mechanism provided by the present application.

[0012] Figure 2 It is a schematic view of the pulling film mechanism provided by the present application.

[0013] Figure 3 It is a schematic view of the transverse heat sealing device of the chrysanthemum packaging machine provided by the present application. DETAILED DESCRIPTION

[0014] In order to make the patent purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0015] In order to illustrate the technical solutions of the present application, the following specific examples are used for illustration.

[0016] For the convenience of description, only the parts related to the embodiments of the present application are shown.

[0017] In combination Figures 1-3 As shown in the drawings, the transverse heat sealing device comprises a machine table 1, a material guiding cylinder 2 and a vertical plate 3 are arranged in the machine table 1 respectively, a film pulling mechanism and a transverse heat sealing mechanism are arranged on the vertical plate 3 respectively corresponding to the material guiding cylinder 2, a wide opening 4 is arranged below the vertical plate 3, a fixing frame 5 is arranged in the wide opening 4, a pair of slide rods 6 are arranged in the fixing frame 5, a pair of front and rear slide seats are arranged on the slide rods 6, wherein the front slide seat is marked as 71 and the rear slide seat is marked as 72. A transverse heat sealing plate 8 is arranged on the inner side of the slide seat, a pair of connecting plates 9 are rotatably arranged at the rear end of the fixing frame 5, a short plate 10 is rotatably arranged above the connecting plates 9 and a long plate 11 is rotatably arranged below the connecting plates 9, the long plate 11 and the short plate 10 are rotatably connected with the front slide seat 71 and the rear slide seat 72 respectively, a heat sealing cylinder 12 for driving the rear slide seat 72 to move is further arranged on the fixing frame 5, a pair of fixing plates 13 are arranged on the front slide seat 71, fixing seats 14 are arranged on the fixing plates 13, a pair of upper and lower fixing rods 15 are arranged on the fixing seats 14, a pushing block 16 is arranged at the inner end of the fixing rod 15, and the transverse heat sealing plate 8 is located between the upper and lower fixing rods 15.

[0018] In order to prolong the shelf life and fresh-keeping period of chrysanthemum and other flowable solid small particle materials, the chrysanthemum can be packaged by using a packaging machine. In the present embodiment, a feeding hopper is arranged above the packaging machine, a film unwinding wheel is arranged in the packaging machine, the bottom of the feeding hopper is in communication with the top of the material guiding cylinder, an inner bag film roll is arranged on the film unwinding wheel, and a longitudinal heat sealing mechanism is further arranged on the front surface of the vertical plate and above the transverse heat sealing mechanism.

[0019] When the chrysanthemum is packaged by using the packaging machine, the inner bag film is tightly attached to the material guiding cylinder, the inner bag film passes through the longitudinal heat sealing mechanism and the transverse heat sealing mechanism in turn under the traction of the film pulling mechanism, and then a current inner packaging bag with an opening is formed, the chrysanthemum is quantitatively poured into the inner packaging bag through the material guiding cylinder, the film pulling mechanism continues to pull the inner bag film to move downward by a certain distance, then the transverse heat sealing mechanism performs transverse heat sealing on the opening of the current inner packaging bag, and at the same time, a next inner packaging bag with an opening is formed.

[0020] When the inner packaging bag is to be transversely heat sealed by using the transverse heat sealing mechanism, the heat sealing cylinder drives the rear slide seat to move forward by a small distance, the connecting plate is pulled to rotate reversely by the short plate during the forward movement of the rear slide seat, and the front slide seat slides backward under the linkage of the long plate. That is, both of the front and rear slide seats move toward the opening direction of the inner packaging bag, until the transverse heat sealing of the inner packaging bag is completed by the two transverse heat sealing plates. Then the heat sealing cylinder drives the rear slide seat to move backward by a small distance, and the two transverse heat sealing plates move reversely by a small distance, in preparation for transverse heat sealing of the next inner packaging bag with an opening.

[0021] In the above-mentioned heat sealing process, the two pairs of pushing blocks are located outside the inner packaging bag and face the opening of the inner packaging bag, i.e. the transverse sealing position of the inner packaging bag is located between the upper and lower pushing blocks. When the front and rear sliding seats move towards each other, the two fixed plates move towards the rear together with the front sliding seat, and the four pushing blocks move towards the rear and push one side of the inner packaging bag towards the other side. When the sealing position of the inner packaging bag approaches to overlap, the front and rear transverse heat sealing plates heat seal it. Before transversely heat sealing the sealing position of the inner packaging bag, the side wall of the inner packaging bag is pushed by the pushing blocks to make the opening of the inner packaging bag approach to overlap, which greatly improves the sealing effect of the inner packaging bag.

[0022] In the structure, as Figure 1 , two long grooves 17 are formed on the two transverse heat sealing plates 8, a pair of cutting cylinders 18 is arranged inside the front sliding seat 71, the driving shaft of the cutting cylinder 18 is connected with a tooth bar 19, and the tooth bar 19 is located in the front long groove, and the tooth bar 18 is located in the front transverse heat sealing plate.

[0023] After transversely heat sealing the inner packaging bag, the two cutting cylinders are simultaneously driven to move the tooth bar rearward until the tooth bar moves into the rear long groove, and the tooth bar can cut the current inner packaging bag, and the current inner packaging bag falls and is discharged. The tooth bar can form a tearable tooth surface on the inner packaging bag, which is convenient for subsequent opening of the inner packaging bag.

[0024] As a preferred structure, as Figures 2-3 , a pair of notches 20 are formed on the upper part of the vertical plate 3, the film pulling mechanism includes a sliding frame 21 installed on the back of the vertical plate 3, a pair of adjusting seats 22 are slidably arranged on the sliding frame 21, a connecting cylinder 23 is transversely arranged on the adjusting seat 22, a vertical plate 24 is arranged at the front end of the connecting cylinder 23 after penetrating out of the notch 20, a driving motor 25 is arranged at the rear end of the connecting cylinder 23, a pair of upper and lower film pulling wheels 25 are rotatably arranged on the vertical plate 24, a belt 26 is sleeved between the two film pulling wheels 25, the driving motor 25 is used to drive the lower film pulling wheel 25 to rotate, and a pushing cylinder 27 is further arranged on the sliding frame 21 to push the adjusting seat to slide.

[0025] Before the inner bag film is pulled by the pulling mechanism, the two pulling wheels need to be away from the material guiding cylinder by a small distance, the inner bag film is sleeved on the material guiding cylinder, and the inner bag film is tightly attached to the material guiding cylinder. Then the two pushing cylinders simultaneously drive the adjusting seat to slide inward, the two vertical plates move inward until the two belts are tightly attached to the material guiding cylinder. Then the two driving motors simultaneously drive the lower pulling wheel to rotate, so that the two belts rotate and pull the inner bag film downward. As a specific structure, a linkage shaft is arranged in the connecting cylinder, the front end of the linkage shaft is connected with the shaft rod of the lower pulling wheel, and the driving shaft of the driving motor is connected with the rear end of the linkage shaft. When the lower pulling wheel needs to be rotated, the driving motor drives the linkage shaft to rotate, thereby driving the lower pulling wheel.

[0026] In the above structure, as Figure 2 , the upper end of the vertical plate 24 is provided with an adjusting groove 28, the shaft rod of the upper pulling wheel 25 is slidably arranged in the adjusting groove 28 through a sliding block 29, and the top of the vertical plate 24 is screwed downward with an adjusting screw rod 30, the bottom of the adjusting screw rod 30 is connected with the sliding block 29.

[0027] In actual process, the tightness of the two belts can be adjusted. If the belt needs to be loosened, the adjusting screw rod is only needed to be screwed, the adjusting screw rod drives the sliding block to slide downward in the adjusting groove by a small distance, the upper pulling wheel moves close to the lower pulling wheel by a small distance, and the belt is gradually loosened in the process.

[0028] The above only describes the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A transverse heat sealing device for a chrysanthemum packaging machine, characterized in that: The cam is provided with a pair of upper and lower fixing rods, and the inner ends of the fixing rods are provided with a shift block, and the transverse heat sealing plate is located between the upper and lower fixing rods.

2. The transverse heat sealing device of the chrysanthemum packaging machine according to claim 1, characterized in that: A pair of slots are provided above the vertical plate, and the film-pulling mechanism includes a slide mounted on the back of the vertical plate, a pair of adjustment seats being slidably provided on the slide, a connecting tube being horizontally provided on the adjustment seat, a vertical plate being provided after the front end of the connecting tube passes through the slot, and a driving motor being provided at the rear end, a pair of upper and lower film-pulling wheels being rotatably provided on the vertical plate, a belt being provided between the same pair of film-pulling wheels, the driving motor being used to drive the lower film-pulling wheel to rotate, and a pushing cylinder being provided on the slide for pushing the adjustment seat to slide.

3. The transverse heat sealing device of the chrysanthemum packaging machine according to claim 2, characterized in that: An adjustment slot is provided above the vertical plate, and the shaft of the upper film pulling wheel is slidably installed in the adjustment slot through a slider. An adjustment screw is screwed downwardly into the top of the vertical plate, and the bottom of the adjustment screw is connected to the slider.

4. The transverse heat sealing device of the chrysanthemum packaging machine according to claim 3, characterized in that: Two long grooves are respectively opened on the two transverse heat sealing plates. A pair of cutting cylinders are provided inwardly of the front slide seat. The driving shafts of the cutting cylinders are connected with tooth bars, and the tooth bars are located in the front long grooves.

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