CN106494932A - Preservative film packaging machine - Google Patents

Abstract

The invention discloses preservative film packaging machine.Easy infection bacterium when existing semi-automatic preservative film packaging machine is encapsulated, full-automatic preservative film packaging machine is not suitable for supermarket or self-employed worker uses.Device, preservative film shearing device, fresh-keeping film clamp device and pallet riser action are pullled in the controller control preservative film circulation of the present invention；Preservative film is nested with preservative film optical axis, and one end is pullled device through preservative film circulation and constantly pulled out；The preservative film of pull-out is cut off by preservative film shearing device after preservative film gripping means grips；Preservative film both sides after fresh-keeping film clamp device causes to cut off while pallet riser conveying pallet rises wrap pallet, cause the another both sides of preservative film to wrap pallet while artificial taking-up pallet.The present invention solves health concerns, and preservative film utilization rate is lifted, improve production efficiency.

Description

Plastic wrap packaging machine

technical field

The invention belongs to the technical field of food packaging and sealing, and in particular relates to a fresh-keeping film packaging machine capable of automatically sealing and packaging food.

Background technique

Most of the existing plastic wrap packaging machines are semi-automatic, with a single function, and can only complete cutting. The manual packaging is mainly used. Using a hot knife to cut consumes a lot of energy, and the cutting is not smooth. It often needs to be broken manually. The utilization rate is very low, and multi-layer packaging is required to completely seal. After the packaging is completed, the plastic wrap is partially exposed, and the plastic wrap needs to be pulled manually every time it is packaged. The fully automatic machinery on the market has high cost, complex structure, large floor space, complex replacement of plastic wrap, high power consumption of the equipment, the use of a fully enclosed structure is easy to cause sanitary dead ends, and the maintenance cost of the equipment is high, and the market application area is narrow , not suitable for supermarkets or self-employed use.

Contents of the invention

The purpose of the present invention is to provide a fresh-keeping film encapsulation machine to improve the efficiency of food packaging and save time and cost in view of the deficiencies of the prior art.

The invention comprises a fresh-keeping film circulation pulling device, a fresh-keeping film clamping device, a fresh-keeping film cutting device, a tray lifting device, a fresh-keeping film optical axis, a frame and a controller. The fresh-keeping film circulation pulling device includes two transmission assemblies arranged up and down. The transmission assembly includes a motor, a bearing seat, a belt transmission mechanism and two drive shafts connected at both ends through the belt transmission mechanism; both ends of the drive shaft are supported on the frame through the bearing seat; one of the drive shafts is driven by the motor . In the two transmission assemblies, the upper conveyor belt with the transmission mechanism is in contact with the corresponding lower conveyor belt with the transmission mechanism, and the two motors are arranged at the same end with the same rotational speed and opposite directions.

The fresh-keeping film clamping device includes a lower splint, a first electric push rod, an upper splint, a traction rope, a second electric push rod and a pulley. The bottom of the lower splint is driven by the first electric push rod, and forms a sliding pair with the frame; the lower splint is provided with a notch; the two upper splints are centered, and one end is fixed on a traction rope, and the other end are all fixed on another traction rope; each traction rope is wound on two pulleys hinged at both ends of the frame; the second electric push rod drives one of the upper splints from the outside; the bottom surface of the upper splint is in contact with the upper, Contact face alignment setting for the lower conveyor belt.

The motor, the first electric push rod and the second electric push rod are all controlled by the controller. The fresh-keeping film cutting device is arranged on a side close to the optical axis of the fresh-keeping film, and is located between the drive shaft of the transmission assembly and the lower splint of the fresh-keeping film clamping device. The tray lifting device is arranged below the plastic wrap clamping device and is aligned with the notch opened on the lower splint.

The fresh-keeping film cutting device includes a third electric push rod, a toothed knife and a connecting piece; the third electric push rod is controlled by a controller; the top of the connecting piece is driven by the third electric push rod, and the toothed knife is fixed at the bottom of the connector.

The pallet lifting device includes a lifting platform and a fourth electric push rod. The fourth electric push rod is arranged below the plastic wrap clamping device and is controlled by the controller; the bottom of the lift table is driven by the fourth electric push rod and forms a sliding pair with the frame; the overall dimensions of the lift table Match the notch size of the lower splint of the plastic wrap clamping device; when the fourth electric push rod is at the maximum push distance, the top surface of the lifting platform is 1-2mm lower than the bottom surface of the upper splint of the plastic wrap clamping device.

The lifting platform is provided with a gravity sensor, and the signal output end of the gravity sensor is connected with the controller.

Beneficial effects of the present invention:

1. Complete automatic wrapping and cutting, solve hidden dangers of hygiene, improve utilization rate of plastic wrap, and improve production efficiency.

2. The driving method is simpler and the failure rate is reduced.

3. Small size and light weight, simple structure, low cost, easy maintenance and cleaning, good packaging effect, wider object-oriented, in line with market demand, used in vegetable markets and fruit supermarkets for packaging fresh food, fruit plates, etc.

Description of drawings

Fig. 1-1 is the perspective view of the overall structure of the present invention;

Fig. 1-2 is the structural stereogram after removing frame of the present invention;

Fig. 2 is the structural stereogram of fresh-keeping film circulation pulling device among the present invention;

Fig. 3-1 is the perspective view of the structure of the plastic wrap clamping device in the present invention;

Fig. 3-2 is the assembling schematic diagram of upper splint and traction rope in the present invention;

Figure 3-3 is a schematic diagram of the assembly of the middle and lower splints and the first electric push rod of the present invention;

Fig. 4 is the structural representation of fresh-keeping film cutting device among the present invention;

Fig. 5 is a structural perspective view of the tray lifting device in the present invention.

detailed description

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Figures 1-1 and 1-2, the plastic wrap packaging machine includes a plastic wrap loop pulling device 1, a plastic wrap clamping device 2, a plastic wrap cutting device 3, a tray lifting device 4, a plastic wrap optical axis 5, and a machine. frame and controller. The controller controls the action of the fresh-keeping film circular pulling device 1, the fresh-keeping film cutting device 2, the fresh-keeping film clamping device 3 and the tray lifting device 4; Pull out; the pulled out plastic wrap is clamped by the plastic wrap clamping device 2 and then cut off by the plastic wrap cutting device 3; the tray lifting device 4 transports the tray up and at the same time the plastic wrap clamping device 2 wraps both sides of the cut plastic wrap For the tray, manually take out the tray while making the other two sides of the plastic wrap wrap the tray.

As shown in FIG. 2 , the fresh-keeping film circulation pulling device 1 includes two transmission assemblies arranged up and down. The transmission assembly includes a motor, a bearing housing 1-1, a belt transmission mechanism 1-2 and two driving shafts 1-3 connected by belt transmission mechanisms at both ends; both ends of the driving shaft 1-3 are supported by bearing housings 1-1 On the frame; the motor drives one of the drive shafts 1-3. In the two transmission assemblies, the upper conveyor belt with the transmission mechanism is in contact with the corresponding lower conveyor belt with the transmission mechanism, and the two motors are arranged at the same end with the same rotational speed and opposite directions.

As shown in Figures 3-1, 3-2 and 3-3, the plastic wrap clamping device 2 includes a lower splint 2-1, a first electric push rod 2-2, an upper splint 2-3, a traction rope 2-4, The second electric push rod 2-5 and pulley 2-6. The bottom of the lower splint 2-1 is driven by the first electric push rod 2-2, and forms a sliding pair with the frame; the lower splint 2-1 is provided with a notch; the two upper splints 2-3 are centered, and one end is even Be fixed on a traction rope 2-4, and the other end is fixed on another traction rope 2-4; Every traction rope 2-4 is wound on two pulleys 2-6 hinged at the two ends of the frame; Two electric push rods 2-5 drive one of the upper splints 2-3 from the outside; the bottom surface of the upper splint 2-3 is aligned with the contact surfaces of the upper and lower conveyor belts.

As shown in Figures 1-1 and 1-2, the cling film cutting device 3 is arranged on the side close to the optical axis 5 of the cling film, and is located between the driving shaft 1-3 of the transmission assembly and the lower splint 2- of the cling film clamping device. between 1. The tray lifting device 4 is arranged below the fresh-keeping film clamping device 2, and is aligned with the notch provided by the lower splint 2-1.

As shown in Figure 4, the plastic wrap cutting device 3 includes a third electric push rod 3-1, a toothed knife 3-2 and a connecting piece 3-3; drive, the toothed knife 3-2 is fixed on the bottom of the connector 3-3.

As shown in FIG. 5 , the tray lifting device 4 includes a lifting platform 4-1 and a fourth electric push rod 4-2. The fourth electric push rod 4-2 is arranged below the plastic wrap clamping device 2; the bottom of the lift table 4-1 is driven by the fourth electric push rod 4-2, and forms a sliding pair with the frame; the lift table 4-1 The overall size matches the notch size provided by the lower splint 2-1 of the plastic wrap clamping device; when the fourth electric push rod 4-2 is in the maximum push distance, the top surface of the lifting table 4-1 is larger than that of the plastic wrap clamping device. The bottom surface of the upper splint 2-3 is 1-2mm lower, so that the upper splint 2-3 can smoothly contact the pallet placed on the lifting platform 4-1. The lifting platform 4-1 is provided with a gravity sensor, and the signal output terminal of the gravity sensor is connected with the controller.

The motor, the first electric push rod 2-2, the second electric push rod 2-5, the third electric push rod 3-1 and the fourth electric push rod 4-2 are all controlled by the controller.

working principle:

The fresh-keeping film is sleeved on the optical axis 5 of the fresh-keeping film, and one end is sandwiched between the upper and lower conveyor belts with transmission mechanisms. When packaging is required, the tray is placed on the lifting platform 4-1. The controller first controls the two motors to rotate in opposite directions at the same speed, and the plastic wrap is pulled out along with the upper and lower conveyor belts with transmission mechanisms until the motors Stop turning. After the fresh-keeping film is pulled to the working state, the controller controls the first electric push rod 2-2 to work, raises the lower splint to clamp the fresh-keeping film, then the fresh-keeping film cutting device works, and the third electric push rod 3-1 goes down Advancing, the toothed knife 3-2 moves downwards to cut the plastic wrap, and then follows the third electric push rod 3-1 to retract. Then, the fourth electric push rod 4-2 works to make the lifting platform 4-1 rise, and the maximum height that the lifting platform 4-1 can rise during work is 1-2 mm lower than the bottom surface of the upper splint 2-3.

After the lifting platform reaches the highest working position, the second electric push rod 2-5 pushes one of the upper splints 2-3 to move inwardly, and at the same time, the other upper splint also moves inwardly under the action of the traction rope. Clamping plates 2-3 move towards each other to cover both sides of the plastic wrap on the bottom of the tray. When the second electric push rod 2-5 is retracted, the two upper splints 2-3 move opposite to each other. When the tray is manually taken out, the other two sides of the plastic wrap wrap the tray. At this time, a tray is packaged, and each device returns immediately. Initial working condition, ready for next packing.

Claims (4)

1. Preservative film packaging machine, comprising a preservative film circulation pulling device, a preservative film clamping device, a preservative film cutting device, a tray lifting device, a preservative film optical axis, a frame and a controller, characterized in that: the preservative film circulation The pulling device includes two transmission assemblies arranged up and down; the transmission assembly includes a motor, a bearing seat, a belt transmission mechanism, and two drive shafts whose two ends are connected through the belt transmission mechanism; both ends of the drive shaft pass through the bearing seat Supported on the frame; the motor drives one of the drive shafts; in the two transmission assemblies, the upper conveyor belt with the transmission mechanism is in contact with the corresponding lower conveyor belt with the transmission mechanism, and the two motors are set at the same end, with the same speed and steering on the contrary; The fresh-keeping film clamping device includes a lower splint, a first electric push rod, an upper splint, a traction rope, a second electric push rod and a pulley; the bottom of the lower splint is driven by the first electric push rod, and is connected with the frame It constitutes a sliding pair; the lower splint is provided with a notch; the two upper splints are centered, and one end is fixed on one traction rope, and the other end is fixed on the other traction rope; each traction rope is wound on the hinged Two pulleys at both ends of the frame; the second electric push rod drives one of the upper splints from the outside; the bottom surface of the upper splint is aligned with the contact surface of the upper and lower conveyor belts; The motor, the first electric push rod, and the second electric push rod are all controlled by the controller; the described fresh-keeping film cutting device is arranged on the side close to the optical axis of the fresh-keeping film, and is located between the drive shaft of the transmission assembly and the fresh-keeping film. Between the lower splints of the clamping device; the tray lifting device is arranged below the plastic wrap clamping device, and is aligned with the notch opened on the lower splint. 2. The fresh-keeping film packaging machine according to claim 1, characterized in that: said fresh-keeping film cutting device comprises a third electric push rod, a toothed knife and a connector; said third electric push rod is controlled by a controller Control; the top of the connecting piece is driven by the third electric push rod, and the toothed knife is fixed at the bottom of the connecting piece. 3. The fresh-keeping film packaging machine according to claim 1, characterized in that: the tray lifting device includes a lifting table and a fourth electric push rod; the fourth electric push rod is arranged below the plastic wrap clamping device , and is controlled by the controller; the bottom of the lifting platform is driven by the fourth electric push rod, and forms a sliding pair with the frame; the external dimensions of the lifting platform match the size of the slot opened by the lower splint of the plastic wrap clamping device; When the fourth electric push rod is in the maximum push distance, the top surface of the lifting platform is 1-2mm lower than the bottom surface of the upper splint of the plastic wrap clamping device. 4. The fresh-keeping film packaging machine according to claim 3, characterized in that: the lifting platform is provided with a gravity sensor, and the signal output terminal of the gravity sensor is connected to the controller.