CN220298878U - Novel bulk food packaging equipment - Google Patents

Abstract

The novel bulk food packaging equipment comprises a power module, a workbench, a bin, a vibrating motor, an electric rotary valve, a discharge shell, an electric push rod, a weight sensing circuit and a supporting mechanism; the bin is arranged at the rear upper end of the workbench, the vibrating motor is arranged at the outer end of the bin, the feeding pipe of the electric rotary valve is connected with the discharging pipe of the bin, the upper end of the discharging shell is provided with an opening, the lower end of the discharging pipe is arranged on the opening, two sets of electric push rods are respectively arranged at the front of the rear of the workbench, clamping blocks are respectively arranged at the inner sides of movable columns of the two sets of electric push rods, the inner sides of the clamping blocks are respectively provided with an opening, and normally closed power switches A are respectively arranged in the openings of the two clamping blocks; the supporting mechanism comprises a fixed pipe, a fixed rod and a supporting seat, and the power module and the weight sensing circuit are arranged in the element box and are electrically connected. Compared with automatic packaging equipment, the novel automatic packaging equipment has the advantages of simple and compact structure and low cost, and accordingly brings convenience to staff and improves working efficiency compared with manual packaging. The utility model has good application prospect.

Description

Novel bulk food packaging equipment

Technical Field

The utility model relates to the technical field of production and packaging equipment, in particular to novel bulk food packaging equipment.

Background

In small food manufacturers or bulk food shops, for example, semi-automatic bulk food packaging machines are generally used to load food bags with a certain amount of bulk food (such as bulk fried bean food, chestnut, etc.) for production cost reasons. The existing semiautomatic bulk food packaging machine generally comprises a bin, a valve, a workbench and the like, when in loading, a worker places a packaging bag on the workbench and is positioned at the lower end of the valve, beverage enters the packaging bag after the valve is opened, and the valve is closed after the packaging bag is properly loaded.

Along with the development of industrial technology, the technology of bulk food packaging machines has also advanced to a certain extent, such as patent numbers 201721847698.6 and patent names automatic bag-blowing food packaging machines in China, and the content of the technology records that the technology has the advantages that when a packaging bag clamp with adhesive tape is opened, the bag mouth of a packaging bag can be driven to be opened, and the packaging bag can be fully opened by matching with a high-pressure bag-blowing air nozzle, so that food can be conveniently put into the packaging bag. The above-mentioned patent, although somewhat convenient for opening the package, is limited in structure and has the following drawbacks as in the prior art. The method comprises the following steps: before packaged food is put into the packaging bags through the food putting device and the discharging hole, workers are required to weigh the food into each packaging bag one by one, or a valve is arranged at the lower end of the discharging hole, a large amount of food is pre-loaded into the food putting device, the valve is manually opened each time so that a certain amount of food enters the packaging bags, and the food is weighed later (the packaging amount is not met after weighing, less food is supplemented, and more food is taken out), the operation mode can bring inconvenience to the workers, and automatic control of feeding or stopping of feeding cannot be realized. And two,: the adhesive tape arranged on the clamping surface of the packaging bag clamp is used for sticking the opening of the packaging bag, and in practical conditions, after the adhesive tape is used for a period of time, the adhesive tape is required to be replaced, so that inconvenience can be brought to staff, and the production cost is correspondingly increased. In summary, there is still a great technical room for improvement in the existing bulk food packaging equipment, and it is particularly necessary to provide a bulk food packaging device which can bring convenience to the staff and can improve the working efficiency.

Disclosure of Invention

In order to overcome the defects of the prior bulk food packaging machine as described in the background due to the limited structure, the utility model provides a novel bulk food packaging device which is convenient for staff and correspondingly improves the production efficiency by providing two sets of electric push rods which can clamp the upper end of a packaging bag and automatically weigh food entering the packaging bag after the packaging bag is sleeved at the outer end of a discharge shell by the staff under the combined action of related mechanisms and automatically turn off the power supply of the related mechanisms after the weight is enough.

The technical scheme adopted for solving the technical problems is as follows:

the novel bulk food packaging equipment comprises a power module, a workbench, a bin, a vibrating motor, an electric rotary valve, a discharge shell and an electric push rod, and is characterized by also comprising a weight sensing circuit and a supporting mechanism; the hopper is arranged at the rear upper end of the workbench, the vibrating motor is arranged at the outer end of the hopper, the feeding pipe of the electric rotary valve is connected with the discharging pipe of the hopper, the upper end of the discharging shell is provided with an opening, and the lower end of the discharging pipe is arranged on the opening; the two sets of electric push rods are respectively arranged at the rear front end of the workbench, clamping blocks are respectively arranged at the inner sides of movable columns of the two sets of electric push rods, openings are formed at the inner sides of the clamping blocks, and normally closed power switches A are respectively arranged in the openings of the two clamping blocks; the supporting mechanism comprises a fixed pipe, a fixed rod and a supporting seat, wherein the lower end of the fixed pipe is arranged in front of the lower end of the workbench, the lower end of the fixed rod is movably sleeved at the upper end in the fixed pipe, the lower end of the supporting seat is arranged at the upper end of the fixed rod, a screw is arranged on the side of the fixed pipe, a weight sensor is matched with the weight sensing circuit, an open slot is formed in the upper end of the supporting seat, and the weight sensor is arranged in the open slot; the power module and the weight sensing circuit are arranged in the element box; the power output end of the weight sensing circuit is electrically connected with the power input end of the vibrating motor and the electric rotary valve.

Further, the lower end of the discharging shell is of an open structure, and the outer diameter of the discharging shell is smaller than that of the packaging bag.

Further, the stress surface of the weight sensor is positioned at the upper end and is higher than the height of the open slot of the supporting seat.

Further, the distance between the upper end of the discharging shell and the upper end of the supporting seat is smaller than the height of the packaging bag.

Further, the buttons of the power switch A in the two clamp block openings are positioned on the inner sides, and the wiring ends of the two power switches A are respectively electrically connected in series between the power input ends of the two sets of electric push rods.

Further, the weight sensing circuit comprises a relay, an NPN triode, a resistor, an adjustable resistor, a power switch B and a buzzer which are electrically connected, the relay is connected with the weight sensor through a lead, the positive power input end and the control power input end of the relay are connected with the positive power input end of the weight sensor and one end of the power switch B, the signal output end of the weight sensor is connected with one end of the first resistor, the other end of the first resistor is connected with one end of the adjustable resistor and one end of the second resistor, the other end of the second resistor is connected with the base electrode of the NPN triode, the collector electrode of the NPN triode is connected with the negative power input end of the relay, the other end of the adjustable resistor is connected with the emitter of the NPN triode and the negative power input end of the buzzer, and the normally open contact end of the relay is connected with the positive power input end of the buzzer.

The utility model has the beneficial effects that: this novel staff overlaps wrapping bag outside the end back at ejection of compact shell, and the clamp splice of two sets of electric putter can press from both sides tight with wrapping bag upper end, and can the automatic stop motion after pressing from both sides tight, and weight sensing circuit can carry out automatic weighing to the food that gets into in the wrapping bag, can automatic shutdown vibrating motor, electric rotary valve's power after the weight is enough, just accomplish the ration packing of bagged food after the clamp splice of staff control electric putter and wrapping bag both sides end separation, the utility model discloses compare in automatic packaging equipment simple structure compactness, with low costs, corresponding brought convenience for the staff, improved work efficiency compared with manual packaging. Based on the above, the utility model has good application prospect.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic view of the whole three-dimensional structure and a partial enlarged structure of the present utility model.

Fig. 2 is a circuit diagram of the present utility model.

Detailed Description

The novel bulk food packaging equipment shown in fig. 1 and 2 comprises a power module U1, a power switch S1, a workbench 1, a bin 2, a vibrating motor M2, an electric rotary valve M3, a discharging shell 3, an electric push rod M1, a weight sensing circuit 4 and a supporting mechanism; the upper end of the hopper 2 is of an open structure, the lower end of the hopper 2 is conical, the rear side of the hopper 2 is welded at the front part of the rear upper end of the workbench 1, the vibrating motor M2 is arranged at the front outer end of the hopper 2 through a screw nut, the upper end feeding pipe of the electric rotary valve M3 is connected with the lower side of a discharging pipe 5 (communicated with the inside of the hopper) in the middle of the lower end of the hopper 2 through threads, an opening is formed in the middle of the upper end of the rectangular discharging shell 3, and the lower end of the discharging pipe 5 is welded on the opening; the two sets of electric push rods M1 are arranged, the cylinder bodies of the two sets of electric push rods M1 are respectively and transversely arranged on two sides of the front middle part of the workbench 1 through screw nuts, the movable columns of the electric push rods M1 are positioned on the inner sides, the inner sides of the movable columns of the two sets of electric push rods are respectively welded with a rectangular clamping block 6, the middle part of the inner side end of each clamping block 6 is provided with an opening 61, and normally closed contact button type power switches AD1 and D2 are respectively adhered in the two clamping block openings 61 by using glue; the supporting mechanism comprises a fixed pipe 71, a fixed rod 72 and a supporting seat 73, wherein the lower end of the fixed pipe 71 is welded at the front middle part of the lower end of the workbench 1, the lower end of the fixed rod 72 is movably sleeved at the inner upper end of the fixed pipe, the middle part of the lower end of the supporting seat 73 is welded at the upper end of the fixed rod 72, a screw hole is formed in the right upper side of the fixed pipe, a manual screw 74 is screwed into the screw hole, a weight sensor U2 is matched with the weight sensing circuit, an open slot 75 is formed in the middle part of the upper end of the supporting seat 73, and the weight sensor U2 is arranged in the open slot 75 through a screw nut; the power module U1, the power switch S1 and the weight sensing circuit 5 are arranged in the element box 8, and the element box 8 is arranged at the right part of the rear front end of the workbench 1 through a screw nut.

As shown in fig. 1 and 2, the discharge shell 3 is hollow and has an open bottom, and the outer diameter of the discharge shell 3 is smaller than that of the package bag. The stress surface of the weight sensor U2 is positioned at the upper end and slightly higher than the open groove 75 of the supporting seat. The distance between the upper end of the discharging shell 3 and the upper end of the supporting seat 73 is smaller than the height of the packaging bag. The buttons of the power switches AD1 and D2 in the two clamping block openings are respectively positioned at the inner sides, after the two clamping blocks 6 are contacted with the left side end and the right side end of the discharging shell 3, the internal contacts of the power switches AD1 and D2 are opened, and the two wiring ends of the two power switches A AD1 and D2 are respectively connected in series between the 3 pin of the power switch S1 and the positive power input end of the two sets of electric push rods M1 through wires. The weight sensing circuit comprises a relay K1, an NPN triode Q1, resistors R1 and R2, an adjustable resistor RP1, a power switch BS2 and a buzzer B which are connected through circuit board wiring, wherein the relay K1 is connected with the NPN triode Q1, the power switch BS2 and the buzzer B through wires (wires connected with the weight sensor U2 are led out downwards from openings at the lower end of an opening slot), the positive power input end and a control power input end of the relay K1 are connected with one end of the positive power input end 1 of the weight sensor U2, the signal output end 3 of the weight sensor U2 is connected with one end of the first resistor R1, the other end of the first resistor R1 is connected with one end of the adjustable resistor RP1, one end of the second resistor R2 is connected with the base of the NPN triode Q1, the collector of the NPN triode Q1 is connected with the negative power input end of the relay K1, the other end of the adjustable resistor RP1 is connected with the emitter of the NPN triode Q1, the negative power input end of the buzzer B is connected with the positive contact end of the normally open of the relay K1 is connected with the power input end of the buzzer B. The power input ends 1 and 2 pins of the power module U1 and the alternating current 220V power supply are respectively connected through wires, the power output ends 3 and 4 pins of the power module U1 and the power input ends 1 and 2 pins of the power switch S1, the other end of the power switch BS2 and the emitter of the NPN triode Q1 are respectively connected through wires, the normally closed contact end of the power output end relay K1 of the weight sensing circuit and the emitter of the NPN triode Q1 are respectively connected with the power input ends of the vibrating motor M2 and the electric rotary valve M3 through wires, and the power output ends 3, 4 pins and 5 pins and 6 pins of the power switch S1 are respectively connected with the positive and negative power input ends of the two sets of electric push rods M1 through wires. The handles of the power switch S1 and the power switch BS2 are positioned outside the front end opening of the element box.

As shown in fig. 1 and 2, after the 220V ac power enters the power input end of the power module U1, the 3 and 4 pins of the power module U1 output stable dc12V power to enter the power switch S1 and the power input end of the weight sensing circuit. The staff adds bulk food to be packaged into the bin 2 in advance (for sanitation, the bin can be covered); then the height of the packaging bag to be packaged is adjusted according to the requirement, the height of the supporting seat 73 is adjusted, the manual screw 74 is loosened, then the supporting seat 73 is moved up or down according to the requirement, so that the lower end of the packaging bag is positioned at the upper end of the supporting seat, the upper end of the subsequent packaging bag is sleeved at the outer side end of the discharging shell, and the distance between the upper end of the discharging shell and the upper end of the supporting seat is smaller than the height of the packaging bag; after the adjustment, the worker screws the screw 74, and the inner side of the screw 74 is tightly contacted with the outer side end of the fixing rod 72, so that the fixing rod 72 is not displaced (as long as the specification of the packaging bag is inconvenient, the subsequent height adjustment of the supporting seat is not needed). During packaging, a worker sleeves the open part at the upper end of the packaging bag around the outer side end of the discharging shell (the lower end of the packaging bag is positioned at the upper end of the weight sensor), then dials the handle of the power switch S1 leftwards, so that the 1 foot, the 2 foot, the 3 foot and the 4 foot of the power switch S1 are respectively communicated, the power input ends of the positive electrode power supply and the negative electrode power supply of the two sets of electric push rods M1 are powered on, the movable columns of the two sets of electric push rods M1 push the clamping blocks 6 to move towards the inner side end, and the two sides of the packaging bag are gradually clamped at the two sides outside the discharging shell; after the two clamping blocks 6 are contacted with the left side end and the right side end of the discharging shell 3, the internal contacts of the power switches AD1 and D2 are opened, so that the two sets of electric push rods M1 are not used for pushing the clamping blocks to move, and the purpose of automatically clamping the packaging bag is achieved. Then, a worker turns on a power switch BS2, a 12V direct current power supply enters a vibrating motor M2 and a power input end of an electric rotary valve M3 through a relay control power input end and a normally closed contact end, the vibrating motor M2 is electrified to generate vibration, food in a bin can enter an upper end feeding pipe of the electric rotary valve M3, and a motor reducing mechanism of the electric rotary valve M3 drives a rice-shaped valve plate to rotate after the electric rotary valve M3 is electrified, so that raw materials in the bin can continuously enter a packaging bag. When the food in the packaging bag does not reach the set quantity of the adjustable resistor RP2 (the later exchange principle), the weight of the stress surface of the weight sensor U3 is smaller, the voltage signal output by the 3 feet of the weight sensor U3 is smaller, the voltage signal is divided by the resistor R1 and the adjustable resistor RP1, the voltage is reduced by the resistor R2, the current is limited, the voltage enters the base electrode of the NPN triode Q1 and is lower than 0.7V, the NPN triode Q1 is cut off, the relay K1 cannot be electrified and is attracted, the vibrating motor M2 and the electric rotary valve M3 continuously work, and the food continuously enters the packaging bag. When food in the packaging bag reaches the set quantity of the adjustable resistor RP1, the weight of the stress surface of the weight sensor U3 is larger, the voltage signal output by the 3 feet of the weight sensor U3 is larger, the voltage signal is divided by the resistor R1 and the adjustable resistor RP1, the voltage signal is reduced and limited by the resistor R2, the voltage signal enters the NPN triode Q1, the base electrode of the packaging bag is higher than 0.7V, the conduction collector output low level of the NPN triode Q1 enters the negative electrode power supply input end of the relay K1, the relay K1 is electrified and attracts the control power supply input end and the normally closed contact end to be closed, the control power supply input end and the normally open contact end to be opened, then the vibration motor M2 and the electric rotary valve M do not work any more, the food also does not continuously enter the packaging bag (after the electric rotary valve M3 is powered off, the motor reducing mechanism does not drive the rice-shaped valve plate to rotate, so raw materials in the bin can not continuously enter the packaging bag, and the weight sensor U3 has the weight of the weight sensor because the height of the packaging bag is higher than the height of the upper end of the discharging shell and the supporting seat, the outer side of the discharging shell is in a bending certain height state, and the weight of the bending position is not ignored and acts on the weight sensor U3). The buzzer B sounds after the relay K1 is electrified and the power-on control power supply input end and the normally open contact end are closed, so that a worker can intuitively know the food quantity in the packaging bag. Then, the worker turns off the power switch BS2 (the buzzer B does not sound any more) and dials the handle of the power switch S1 rightwards, so that the 1, 2, 5 and 6 pins of the power switch S1 are respectively communicated, the negative and positive electrode power input ends of the two sets of electric push rods M1 are powered on, the movable columns of the two sets of electric push rods M1 drive the clamping blocks 6 to move towards the side ends of the belt, the clamping blocks are gradually separated from the two sides of the packaging bag, the power switch S1 is turned off after the clamping blocks are at a certain position, and the packaged food bags are taken down from the discharging shell, so that the whole packaging flow is completed. The process is completely consistent with the process, and the food packaging operation of the next packaging bag can be carried out.

Fig. 1 and 2 show, through the foregoing, this novel staff overlaps the wrapping bag behind the ejection of compact shell outer end, only need simple switch operation, two sets of electric putter's clamp splice can press from both sides tight with the wrapping bag upper end, and can automatic stop motion after pressing from both sides tight, weight sensing circuit can carry out automatic weighing to the food that gets into in the wrapping bag, can automatic shutdown vibrating motor after the weight is enough, electric rotary valve's power, just accomplish the ration packing of bagged food after staff's control electric putter's clamp splice and wrapping bag both sides end separation, this novel compare in automatic packaging equipment simple structure compactness, with low costs, corresponding convenience has been brought for the staff, compare with manual packaging has improved work efficiency (do not need manual weighing, do not satisfy the packing volume after having reduced weighing, less then supplementary food, more take out partial food and bring inconvenience for the staff, and improved work efficiency). In fig. 2, the resistances of the resistors R1 and R2 are 12K and 4.7K, respectively. The model Q1 of NPN transistor is 9013. The relay K1 is a DC12V relay. The power supply module U1 is a finished product of a switching power supply module from alternating current 220V to direct current 12V. The specification of the adjustable resistor RP1 is 470K (the embodiment is adjusted to 23.9K), the handle (the side end element box is marked with a number representing weight) of the adjustable resistor RP1 is positioned outside the front end opening of the element box, and when the resistance value of the adjustable resistor RP1 is adjusted to be larger, the voltage division is larger by a technician, so that when the voltage signal output by the 3 pin of the subsequent weight sensor U2 is low (namely, the food amount in the packaging bag is relatively small), the NPN triode Q1 is conducted, namely, the weight threshold of the food in the packaging bag set by the novel type is smaller; the technician adjusts the resistance value of the adjustable resistor RP1 to be smaller, and the partial pressure of the adjustable resistor RP1 is smaller, so that the NPN triode Q1 is conducted only when the voltage signal output by the 3 pin of the subsequent weight sensor U2 is high (namely, the food in the packaging bag is relatively more), namely, the weight threshold of the food in the packaging bag set by the novel weight sensor U2 is changed; the specific weight setting technician adjusts according to the desired weight of the food to be loaded into the packaging belt. The electric push rod M1 is a finished product of the reciprocating electric telescopic rod. The vibration motor M1 is a vibration motor finished product with working voltage of 12V and 300W. The electric rotary valve M3 has a working voltage of 12V and a power of 50W, and comprises a motor reducing mechanism, a rice-shaped valve plate and a volute, wherein the upper end and the lower end of the volute are respectively provided with a feed pipe and a discharge pipe, the motor reducing mechanism is arranged outside the rear end of the volute, the front end of a power output shaft is rotationally positioned in the middle part of the volute, the middle part of the valve plate is arranged outside the power output shaft, and the front end and the rear end of the valve plate, the circumference outer side and the volute are only spaced by 0.5 mm. Therefore, food can not enter through the feed pipe and fall out through the discharge pipe when not rotating.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is limited to the details of the foregoing exemplary embodiments, and that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, the embodiments do not include only a single embodiment, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and embodiments may be suitably combined to form other embodiments that will be understood by those skilled in the art.

Claims (6)

1. The novel bulk food packaging equipment comprises a power module, a workbench, a bin, a vibrating motor, an electric rotary valve, a discharge shell and an electric push rod, and is characterized by also comprising a weight sensing circuit and a supporting mechanism; the hopper is arranged at the rear upper end of the workbench, the vibrating motor is arranged at the outer end of the hopper, the feeding pipe of the electric rotary valve is connected with the discharging pipe of the hopper, the upper end of the discharging shell is provided with an opening, and the lower end of the discharging pipe is arranged on the opening; the two sets of electric push rods are respectively arranged at the rear front end of the workbench, clamping blocks are respectively arranged at the inner sides of movable columns of the two sets of electric push rods, openings are formed at the inner sides of the clamping blocks, and normally closed power switches A are respectively arranged in the openings of the two clamping blocks; the supporting mechanism comprises a fixed pipe, a fixed rod and a supporting seat, wherein the lower end of the fixed pipe is arranged in front of the lower end of the workbench, the lower end of the fixed rod is movably sleeved at the upper end in the fixed pipe, the lower end of the supporting seat is arranged at the upper end of the fixed rod, a screw is arranged on the side of the fixed pipe, a weight sensor is matched with the weight sensing circuit, an open slot is formed in the upper end of the supporting seat, and the weight sensor is arranged in the open slot; the power module and the weight sensing circuit are arranged in the element box; the power output end of the weight sensing circuit is electrically connected with the power input end of the vibrating motor and the electric rotary valve.

2. The novel bulk food packaging device of claim 1, wherein the lower end of the discharge housing is of an open configuration and the outer diameter of the discharge housing is less than the outer diameter of the package.

3. The novel bulk food packaging device of claim 1, wherein the load-bearing surface of the weight sensor is located at the upper end and is higher than the open slot height of the support base.

4. The novel bulk food packaging device of claim 1, wherein the distance between the upper end of the discharge housing and the upper end of the support base is less than the height of the package.

5. The novel bulk food packaging device of claim 1, wherein the buttons of the power switch a are located on the inner sides in the openings of the two clamping blocks, and the wiring terminals of the two power switches a are respectively electrically connected in series between the power input ends of the two sets of electric push rods.

6. The novel bulk food packaging device according to claim 1, wherein the weight sensing circuit comprises a relay, an NPN triode, a resistor, an adjustable resistor, a power switch B and a buzzer which are electrically connected, the relay, the control power input and the weight sensor are connected through wires, the signal output end of the weight sensor is connected with one end of a first resistor, the other end of the first resistor is connected with one end of the adjustable resistor, one end of a second resistor is connected with the base electrode of the NPN triode, the collector electrode of the NPN triode is connected with the negative power input end of the relay, the other end of the adjustable resistor is connected with the emitter of the NPN triode and the negative power input end of the buzzer, and the normally open contact end of the relay is connected with the positive power input end of the buzzer.