CN210761667U

CN210761667U - Two-stage lifting device for pressing plate of bag making machine

Info

Publication number: CN210761667U
Application number: CN201921684497.8U
Authority: CN
Inventors: 王根乐
Original assignee: Langfang Zhongfeng Machinery Technology Co ltd
Current assignee: Langfang Zhongfeng Machinery Technology Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-16
Anticipated expiration: 2029-10-10

Abstract

The utility model provides a system bag machine's clamp plate two-stage elevating gear, includes the middle clamp plate of product folding device, this middle clamp plate is connected with a lift drive and front and back drive that can drive it and reciprocate and back-and-forth movement, its characterized in that, lift drive adopt can divide the two-stage lift drive that two-stage drive middle clamp plate goes up and down. The utility model has the advantages that: the upper and lower driving cylinders or the multi-position cylinders are utilized, the middle pressing plate can move upwards to leave the plastic bag when being reset, and then moves backwards to reset, so that the phenomenon that the indentation is leveled in the process of moving backwards is effectively avoided, and the folding effect is ensured.

Description

Two-stage lifting device for pressing plate of bag making machine

Technical Field

The utility model relates to a clamp plate two-stage elevating gear of system bag machine belongs to the folding device's of plastic bag preparation equipment component.

Background

The material bag making machine in the prior art generally comprises a front process, a finished product input unit, a product folding device, a product transferring unit, a bundling unit and a product output unit, wherein the front process comprises a feeding unit, a heat seal cutting unit and a notching unit, the finished product input unit inputs a plastic bag finished product which is notched by the notching unit to form a vest shape onto the product folding device, the plastic bag finished product is folded by the product input unit and is conveyed to the bundling unit by the product transferring unit to be bundled, and finally the plastic bag finished product is output by the product output unit to complete the whole bag making process. The product folding device comprises: a front angle folding mechanism for folding the two lifting belts at the front end of the vest-shaped plastic bag finished product towards the middle; a front flap for folding the front portion of the plastic bag product back; a rear flap for folding the rear portion of the plastic bag product forward; the front corner folding mechanism is arranged in front of the front folding plate, the rear folding plate is arranged behind the front folding plate, two guide plates which are arranged in parallel are arranged below the front folding plate and the rear folding plate, and two side pressing plates which are provided with opposite openings and can move up and down and relatively are respectively arranged above two ends of each guide plate; an n-shaped bracket connected with the racks on the two sides is arranged above the guide plate, an inserting plate is arranged below the n-shaped bracket, a front indentation plate and a rear indentation plate are respectively arranged in front of and behind the inserting plate, and the inserting plate, the indentation plates and the rear indentation plates are respectively connected with the guide rod through a driving device arranged on the n-shaped bracket; a front creasing plate notch corresponding to the front folded plate notch is arranged in the middle of the lower side of the front creasing plate; the rear part of the middle pressure plate is connected with a middle pressure plate driving device which can drive the middle pressure plate to deflect and move back and forth along the guide rail.

When the folding device works, after a stack of plastic bags are conveyed to the upper surface of the product folding device by the product input unit, the middle pressing plate reaches the upper part of the plastic bags from the back and moves downwards to press the plastic bags, and then the two lifting belts at the front end of the plastic bags are folded towards the middle by the folding device; meanwhile, the front creasing plate and the rear creasing plate are creased downwards on the plastic bag, and then the middle pressing plate is moved away and reset; then the front folded plate is folded upwards and backwards; and finally, the rear folded plate is folded upwards and forwards to complete the whole folding process. In the process, the middle pressing plate moves backwards after the indentation to reset, the lower part of the middle pressing plate rubs with the plastic bag, the indentation pressed by the indentation plate is flattened, and the folding effect is poor.

Disclosure of Invention

The utility model aims at providing a clamp plate two-stage elevating gear of system bag machine to the intermediate pressure board that solves prior art existence moves the indentation that the in-process that resets backward can extrude the indentation board and evens out, influences the problem of folding effect.

The technical scheme of the utility model is that: the utility model provides a system bag machine's clamp plate two-stage elevating gear, includes the middle clamp plate of product folding device, this middle clamp plate is connected with a lift drive and front and back drive that can drive it and reciprocate and back-and-forth movement, its characterized in that, lift drive adopt can divide the two-stage lift drive that two-stage drive middle clamp plate goes up and down.

The front and rear driving device comprises a guide rail, a base plate and a front and rear driving cylinder, the rear end of the guide rail is hinged with the rack, the base plate is connected on the guide rail in a sliding manner, the middle pressing plate is connected on the base plate, and two ends of the front and rear driving cylinder are respectively connected with the rack and the base plate; the two-stage lifting driving device is arranged between the lower surface of the front end of the guide rail and the rack, and adopts a multi-position cylinder or a first up-down driving cylinder and a second up-down driving cylinder which are connected in series up and down.

The front and back driving device comprises a guide rail, a base plate and a front and back driving cylinder, the guide rail is respectively arranged on the machine frames at the two sides, the two ends of the base plate are connected on the guide rail through sliding blocks, the two ends of the front and back driving cylinder are respectively connected between the sliding blocks and the machine frames, and the middle pressing plate is connected on the base plate; the two-stage lifting driving device is arranged between the sliding block and the base plate, and adopts a multi-position cylinder or a first up-down driving cylinder and a second up-down driving cylinder which are connected in series up and down. The utility model has the advantages that: the upper and lower driving cylinders or the multi-position cylinders are utilized, the middle pressing plate can move upwards to leave the plastic bag when being reset, and then moves backwards to reset, so that the phenomenon that the indentation is leveled in the process of moving backwards is effectively avoided, and the folding effect is ensured.

Drawings

FIG. 1 is a schematic structural view (section B-B in FIG. 2) of one embodiment of the present invention (assembled with a folding device);

FIG. 2 is a cross-sectional view A-A of FIG. 1 (without the front creasing plate, insert plate, and rear creasing plate);

fig. 3 is a schematic structural view of another embodiment of the present invention (assembled with a folding device);

FIG. 4 is a cross-sectional view C-C of FIG. 3;

FIG. 5 is a schematic structural view of the width-adjustable intermediate platen of the present invention;

fig. 6 is a bottom view of fig. 5.

Description of reference numerals: 1. the bag pressing and bending machine comprises a machine frame, 6, a bag pressing and bending hook, 7, a bending hook driving cylinder, 8, a front folding plate, 81, a front folding plate notch, 10, a front creasing plate, 11, an inserting plate, 12, a rear creasing plate, 13, a cylinder, 14, a cylinder, 15, a cylinder, 16, two side pressing plates, 17, a rear folding plate, 18, a middle pressing plate, 181, a hollow part, 19, a base plate, 20, a pressing plate guide rail, 21, a guide rail, 22, a hinge shaft, 23, a cross beam (connected with the machine frame), 24, a front and rear driving cylinder, 26, a first upper and lower driving cylinder, 27, a second upper and lower driving cylinder, 28, a sliding block, 31, a guide plate, 34, an n-shaped bracket, 35 and a pressing.

Detailed Description

Referring to fig. 1 and 2, the utility model relates to a clamp plate two-stage elevating gear of system bag machine, including folding device, product folding device include: a preceding angle folding mechanism for carrying two of undershirt form plastic bag finished product front end and taking folding to the centre for with the off-the-shelf front portion of plastic bag 8 of folding backward, be equipped with in the front end middle part of this front folded plate 8 and can upwards swing backward press a bag hook 6, press a bag hook 6 and drive the cylinder 7 by the hook drive cylinder 7 of installation under front folded plate 8 front end, be equipped with in the middle part of this topside and be used for through this front folded plate breach 81 that presses a bag hook 6. A rear flap 17 for folding the rear portion of the plastic bag product forward; the front corner folding mechanism is arranged in front of a front folding plate 8, a rear folding plate 17 is arranged behind the front folding plate 8, two guide plates 31 arranged in parallel are arranged below the space between the front folding plate and the rear folding plate, and two side pressing plates 16 with opposite openings and capable of moving up and down and relatively are respectively arranged above two ends of each guide plate 31; an n-shaped bracket 34 connected with the frames on two sides is arranged above the guide plate 31, an inserting plate 11 is arranged below the n-shaped bracket 34, a front indentation plate 10 and a rear indentation plate 12 are respectively arranged in front of and behind the inserting plate 11, and the inserting plate 11, the indentation plate 10 and the rear indentation plate 12 are respectively connected with the guide rod through a driving device arranged on the n-shaped bracket 34 (in the embodiment, the driving device of the front indentation plate 10 adopts a cylinder 13, two guide rods are respectively arranged on two sides of the cylinder 13; the driving devices of the inserting plate 11 and the rear indentation plate 12 respectively adopt a cylinder 14 and a cylinder 15, and two guide rods are also arranged on two sides of the cylinder 14 and the cylinder 15). An intermediate pressure plate 18 is arranged above the rear part of the frame 1, the front end of the intermediate pressure plate is in a 45-degree trapezoid shape (namely, two angles at the front end are in 45-degree chamfers), and the intermediate pressure plate 18 is connected with a lifting driving device and a front and rear driving device which can drive the intermediate pressure plate to move up and down and move back and forth.

The middle part of the middle pressing plate 18 is a hollow 181, and the hollow area (the front end of which can be through or closed) is slightly larger than the profile range of the cross sections of the inserting plate 11, the front indentation plate 10 and the rear indentation plate 12. Therefore, the creasing step (the front creasing plate 10 and the rear creasing plate 12 move downwards to press folding marks on the plastic bag) can be carried out while the front first-step folding (the two front creasing plates 3 move towards the middle to fold the carrying belt of the plastic bag towards the middle) is carried out, so that the time of the whole folding process is shortened (from 11 seconds to 9 seconds through experiments), and the working efficiency of the machine is obviously improved.

The above are all the prior art.

The utility model discloses the main improvement part of this embodiment is: the front and back driving device comprises a guide rail 21, a base plate 19 and a front and back driving cylinder 24, the rear end of the guide rail 21 is hinged to a cross beam 23 connected to the rack 1 through a hinge shaft 22, the base plate 19 is connected to the guide rail 21 through a sliding block 28 in a sliding mode, an intermediate pressing plate is connected to the base plate 19, and two ends of the front and back driving cylinder 24 are respectively connected with the rack and the base plate 19. The two-stage lifting driving device is arranged between the lower surface (through a cross beam) of the front end of the guide rail 21 and the frame 1, and adopts a first up-down driving cylinder 26 and a second up-down driving cylinder 27 which are connected in series up and down. The two-stage lift driving device may also employ a multi-position type cylinder (instead of the first up-down driving cylinder 26 and the second up-down driving cylinder 27).

Referring to fig. 3 and 4, the modified portions of this embodiment are: the front and back driving device comprises a guide rail 21, a base plate 19 and a front and back driving cylinder 24, the guide rail 21 is respectively arranged on the machine frame at the two sides, the two ends of the base plate 19 are respectively connected on the corresponding guide rail 21 through a sliding block 28, the two ends of the front and back driving cylinder 24 are respectively connected between the sliding block 28 and the machine frame, and the middle pressing plate 18 is connected on the base plate 19; the two-stage lifting drive device is provided between the slide 28 and the base plate 19, and is the same as in the previous embodiment.

The utility model discloses utilize two to drive actuating cylinder or multiposition type cylinder from top to bottom, can utilize the second to drive actuating cylinder 27 from top to bottom when middle clamp plate 18 resets and move up one section distance (a plurality of millimeters) with guide rail 21's front end rebound, it leaves the plastic bag to drive middle clamp plate 18 synchronous motion that makes progress, then move backward and reset again, the phenomenon that middle clamp plate 18 was evened up the indentation of preceding indentation board 10 with back indentation board 12 extrusion on the plastic bag in the process of moving back has effectively been avoided, folding effect has been guaranteed (there is not the indentation to lead to folding time folding the fold line appear irregular arch).

In addition, referring to fig. 5 and 6, the intermediate press plate 18 is composed of two bilaterally symmetrical parts, which are slidably connected to a transverse press plate rail 20 on a base plate 19, the base plate 19 being slidably connected to the longitudinal rail 21; between the two parts is mounted a press plate width adjustment device 35 for adjusting the distance between the two parts. The pressure plate width adjusting device 35 can adopt the conventional technology, for example, a screw rod with opposite spiral and two nuts arranged on different spiral of the screw rod are adopted, the two nuts are respectively connected with the two half supporting plates or the two half supporting plates, the distance between the two nuts can be adjusted by rotating the screw rod, and the screw rod can also be driven by a motor; the air cylinder can also be used for driving the adjusting object; or any device known in the art that can adjust the separation between two components. The whole width of the middle pressing plate 18 is adjusted through the pressing plate width adjusting device 35, so that the device is suitable for production of products with different widths, and the applicability of the device is improved.

Claims

1. The utility model provides a system bag machine's clamp plate two-stage elevating gear, includes the middle clamp plate of product folding device, this middle clamp plate is connected with a lift drive and front and back drive that can drive it and reciprocate and back-and-forth movement, its characterized in that, lift drive adopt can divide the two-stage lift drive that two-stage drive middle clamp plate goes up and down.

2. The two-stage lifting device for the pressing plate of the bag making machine as claimed in claim 1, wherein the front and rear driving device comprises a guide rail, a base plate and a front and rear driving cylinder, the rear end of the guide rail is hinged with the frame, the base plate is slidably connected with the guide rail, the intermediate pressing plate is connected with the base plate, and the two ends of the front and rear driving cylinder are respectively connected with the frame and the base plate; the two-stage lifting driving device is arranged between the lower surface of the front end of the guide rail and the rack, and adopts a multi-position cylinder or a first up-down driving cylinder and a second up-down driving cylinder which are connected in series up and down.

3. The two-stage lifting device for the pressing plate of the bag making machine as claimed in claim 1, wherein said front and rear driving means comprises a guide rail, a base plate and a front and rear driving cylinder, the guide rail is mounted on the frame on both sides, both ends of the base plate are connected to the guide rail through a slider, both ends of the front and rear driving cylinder are connected between the slider and the frame, respectively, and said intermediate pressing plate is connected to the base plate; the two-stage lifting driving device is arranged between the sliding block and the base plate, and adopts a multi-position cylinder or a first up-down driving cylinder and a second up-down driving cylinder which are connected in series up and down.