CN110816965A - Rice dumpling pairing equipment and method - Google Patents

Abstract

The invention discloses a rice dumpling pairing device and a method, the rice dumpling pairing device comprises a support frame, a main conveying line is installed on the support frame, a weighing conveying belt used for weighing rice dumplings and conveying the rice dumplings onto the main conveying line is arranged at the head end of the main conveying line, a plurality of material stirring devices are arranged at intervals along the main conveying line, a sub-conveying line is arranged on the left side and/or the right side of each material stirring device, and the material stirring devices are used for stirring and conveying the rice dumplings on the main conveying line onto the sub-conveying line. According to the equipment and the method for pairing the zongzi, the zongzi is weighed through the weighing conveyer belt, then the weighed zongzi is conveyed to the main conveyer line, the weighing data of the zongzi is transmitted to the controller, the controller controls the material shifting device to shift and convey the zongzi which can be paired to the same sub-conveyer line according to signals sent by the first sensor and the encoder, the pairing of the zongzi is achieved through a production line mode, the pairing efficiency is improved, and the labor cost is reduced.

Description

Rice dumpling pairing equipment and method

Technical Field

The invention relates to the technical field of food packaging, in particular to rice dumpling pairing equipment and a rice dumpling pairing method.

Background

The rice dumpling is a traditional snack of Chinese nationality and is a necessary food for families at noon festival. Because the preparation of zongzi needs through a plurality of processes such as bubble rice, wrap rice with the zongzi leaf, boil, add modern society life rhythm and accelerate, every noon festival, ordinary family does not make the zongzi by oneself, purchases the zongzi finished product from the supermarket mostly, and the zongzi of food factory preparation can be sold in the supermarket through the packing is cold-stored, and cold-stored zongzi can eat after going back to heat, and the edible mode is simple swift.

At present, although the sizes and weights of manufactured zongzi in a food factory are relatively close, because the zongzi can not be made into a standardized product after all, the weights of the zongzi have obvious differences, after a plurality of zongzi are randomly selected and placed in a packaging box, the total weight differences of the zongzi in different packaging boxes are obvious after the weight differences of the single zongzi are accumulated, so that the zongzi are not suitable for being sold in a unified pricing mode after being packaged in the box, and the zongzi packaged in the box are obviously more popular.

Although the weight of a single rice dumpling is obviously different, if the two rice dumplings are matched, the two rice dumplings with the total weight close to the average value can be easily prepared, a plurality of groups of matched rice dumplings are randomly selected for packing, the total weight difference of the rice dumplings in different packing boxes can be basically ignored, so that the rice dumplings packed in the boxes can be priced uniformly, and the rice dumplings with the corresponding amount can be purchased by the expenditure of consumers.

Because the zongzi output of food factory is huge, if pair the zongzi through the manual work, work load is big, and the cost of labor is high, and is inefficient, and the going on the market of zongzi generally around the noon festival, needs the efficient zongzi of short time in to pair, consequently, it is necessary to design an efficient, with low costs zongzi and pairs the device.

Disclosure of Invention

The invention aims to provide rice dumpling matching equipment, and solves the technical problem that rice dumplings are inconvenient to match in the prior art.

To solve the above technical problem, a first aspect of the present invention is:

designing a zongzi pairing device, including:

a support frame;

the main conveying line is arranged on the support frame;

the material shifting devices are mounted on the support frame and are arranged at intervals along the main conveying line; the material shifting device comprises a support saddle spanned on the main conveying line, a first motor is mounted on the support saddle, an output shaft of the first motor is in driving connection with a rotating shaft, and a plurality of material shifting plates arranged along the axial direction are arranged on the peripheral surface of the rotating shaft;

a sub-conveying line is arranged on the left side and/or the right side of each material poking device, and the material poking devices are used for poking the rice dumplings on the main conveying line to the sub-conveying line;

the weighing conveyer belt is arranged at the head end of the main conveyer line and used for weighing the rice dumplings and conveying the rice dumplings onto the main conveyer line;

a first sensor used for sensing the rice dumplings is arranged at the head end of the main conveying line, the main conveying line is driven by a second motor, and an output shaft of the second motor is connected with an encoder in a driving manner; zongzi pairs equipment be equipped with first sensor, encoder signal connection are in order to control according to the received signal the controller of first motor.

Preferably, the surface of the material poking plate is coated with a soft layer.

Preferably, the branch transfer chain is a baffle conveyer belt driven by a third motor, second sensors used for sensing the baffles on the branch transfer chain are arranged on two sides of the branch transfer chain, and the controller is in signal connection with the second sensors to control the third motor according to received signals.

Preferably, still include feeding system, feeding system is including arranging the conveyer belt and accelerating the conveyer belt, the conveying speed of accelerating the conveyer belt is greater than arrange the conveyer belt, accelerate the conveyer belt, weigh conveyer belt, main transfer chain and arrange in order.

Preferably, the upper surface of arranging the conveyer belt is equipped with the baffle, the baffle is followed the length direction who arranges the conveyer belt extends to be convenient for the zongzi to follow the baffle is arranged into one row.

Preferably, the front end of arranging the conveyer belt still is equipped with reason material conveyer belt, the one end of reason material conveyer belt is located arrange the conveyer belt top and be close to the baffle for the zongzi drops and arranges the tip of reason material conveyer belt with in the clearance between the baffle.

Preferably, a protection cage is arranged above the material stirring device, and the protection cage is arranged on the supporting frame.

The second aspect of the present invention is:

a zongzi pairing method is designed, and the zongzi pairing equipment adopting any one of the first aspect of the invention comprises the following steps:

(1) sampling and weighing all manufactured zongzi, and calculating the average total weight and the error range of any two zongzi;

(2) temporary storage of the matched rice dumplings:

the rice dumplings are weighed by the weighing conveyer belt and then conveyed to the main conveyer belt, one rice dumpling on the main conveyer belt is pushed to the sub-conveyer belts through the material pushing device to be temporarily stored as paired rice dumplings, only one paired rice dumpling is temporarily stored on each sub-conveyer belt, and the weight of each paired rice dumpling is recorded;

(3) finding matched rice dumplings for the matched rice dumplings:

if the difference value between the total weight of a certain rice dumpling on the main conveying line and the paired rice dumpling temporarily stored on a certain branch conveying line and the average total weight is within the error range, determining that the rice dumpling on the main conveying line is the paired rice dumpling; when the paired rice dumplings are conveyed to a material poking device corresponding to the matched paired rice dumplings along a main conveying line, the paired rice dumplings are poked to a corresponding material poking conveying line through the material poking device, so that the paired rice dumplings and the paired rice dumplings are converged;

(4) after being paired zongzi on certain branch transfer chain is sought to find to pair the zongzi and is joined, should divide the transfer chain will be paired zongzi and pair zongzi and export in the lump and deposit, should divide the transfer chain vacant back, continue to keep in according to step (2) and step (3) and be paired zongzi and seek to pair the zongzi.

The invention has the main beneficial technical effects that:

according to the equipment and the method for pairing the zongzi, the zongzi is weighed through the weighing conveyer belt, then the weighed zongzi is conveyed to the main conveyer line, the weighing data of the zongzi is transmitted to the controller, the controller controls the material shifting device to shift the zongzi which can be paired to the same sub-conveyer line according to signals sent by the first sensor and the encoder, and the zongzi is paired in a production line mode.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of a rice dumpling pairing apparatus of the present invention.

Fig. 2 is an exploded schematic view of a material stirring device in an embodiment of the rice dumpling pairing apparatus of the present invention.

Fig. 3 is a front view of a main conveyor line in an embodiment of the rice dumpling pairing apparatus of the present invention.

Fig. 4 is an exploded schematic view of the main conveying line and the sub-conveying line in an embodiment of the rice dumpling matching apparatus of the present invention.

Fig. 5 is an exploded schematic view of a distribution and conveying line in an embodiment of the rice dumpling pairing apparatus of the present invention.

Fig. 6 is an enlarged view of a portion a in fig. 1.

Fig. 7 is a left side view of an embodiment of the rice dumpling pairing apparatus of the present invention.

Fig. 8 is a control block diagram of an embodiment of a rice dumpling pairing apparatus of the present invention.

Fig. 9 is a schematic overall structure diagram of an embodiment of the rice dumpling pairing apparatus of the present invention.

Fig. 10 is a flowchart of an embodiment of a zongzi pairing method according to the present invention.

In the drawings, each reference numeral means: the device comprises a support frame 1, a main conveying line 2, a support beam 21, a driven roller 211, a driving roller 212, a belt 22, a second motor 23, a second speed reducer 24, a first sensor 25, an encoder 26, a material stirring device 3, a support 31, a first motor 32, a bearing seat 33, a first speed reducer 34, a rotating shaft 35, a material stirring plate 36, a fixed disc 37, a clamping groove 371, a conveying channel 38, a branch conveying line 4, a partition plate belt 41, a partition plate 411, a support 42, a rear support leg 43, a front support plate 44, a third motor 45, a third speed reducer 46, a second sensor 47, a weighing conveying belt 5, rice dumplings 6, a material sorting conveying belt 71, an arrangement conveying belt 72, a baffle 721, an acceleration conveying belt 73, a protection cage 8 and a support rod 81.

Detailed Description

The following examples are intended to illustrate the present invention in detail and should not be construed as limiting the scope of the present invention in any way.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. References to "first," "second," etc. (if any) in this application are intended to distinguish between similar elements and not necessarily to describe a particular order or sequence.

Example 1:

a rice dumpling pairing device, please refer to fig. 1 to 9.

As shown in fig. 1, the rice dumpling pairing device provided by the embodiment of the invention comprises a support frame 1, wherein the support frame 1 mainly plays a supporting role, a main conveying line 2 and four material shifting devices 3 are arranged on the support frame, and the material shifting devices 3 are arranged at intervals along the main conveying line 2.

A branch conveying line 4 is respectively arranged on the left side and the right side of each material poking device 3, and a weighing conveying belt 5 is arranged at the head end of the main conveying line 2. Weighing conveyer belt 5 is used for weighing zongzi 6 and carries on main transfer chain 2, and weighing conveyer belt 5 can adopt the model to be CW 150's weight sorting conveyer, divides the side of the adjacent main transfer chain 2 of tip of transfer chain 4 to be used for dialling zongzi 5 on the main transfer chain 4 through dialling material device 3 and send to on dividing transfer chain 4.

Specifically, as shown in fig. 2, each material shifting device 3 includes a support 31 straddling a main conveying line, the adjacent material shifting devices 3 share one support, each material shifting device 3 is supported by two supports 31, a first motor 32 is mounted on one support 31, a bearing seat 33 is mounted on the other support 31, an output shaft of the first motor 32 is connected with a first speed reducer 34, an output shaft of the first speed reducer 34 is drivingly connected with a rotating shaft 35, and the other end of the rotating shaft 35 is mounted on the bearing seat 33 through a bearing.

The outer peripheral surface of the rotating shaft 35 is provided with a plurality of material shifting plates 36 arranged along the axial direction, two ends of the rotating shaft 35 are respectively provided with a fixed disc 37, the fixed disc 37 is evenly provided with eight clamping grooves 371 along the axial direction, and two ends of the material shifting plates 36 are correspondingly fixed in the clamping grooves 371. Both sides face cladding of switch plate 36 has the soft layer, and the soft layer can adopt food level soft plastics, prevents that switch plate 36 from smashing the zongzi when dialling and send the zongzi.

As shown in fig. 4, between the upper side of the main conveying line 2 and the lower side of the support 31, there is a Zongzi conveying channel 38, and two lowest material shifting plates 36 of the material shifting device 3 are respectively located at two sides of the Zongzi conveying channel 38, so as to prevent the material shifting plates 36 from blocking the Zongzi 6 on the Zongzi conveying channel 38. First motor 32 is servo motor, and when needs were dialled zongzi 6 on the main conveyor line 2 and was sent to the branch transfer chain 4 of one side on, first motor 32 drive pivot 35 corotation or 45 degrees of reversal to drive switch board 36 and rotate 45 degrees, like this, two switch boards 36 of the downside of setting aside material device 3 are located zongzi transfer passage 38's both sides all the time, and switch board 36 can not block follow-up zongzi and pass through.

Further, as shown in fig. 4, the main conveying line 2 and the branch conveying line 4 are both belt conveyors. The main conveying line 2 comprises a supporting beam 21 and a belt 22, wherein the front end of the supporting beam 21 is provided with a driven roller 211, the rear end of the supporting beam 21 is provided with a driving roller 212, and the belt 22 is arranged between the driving roller 212 and the driven roller 211; the end of the supporting beam 21 is provided with a second motor 23, an output shaft of the second motor 23 is connected with a second speed reducer 24, and an output shaft of the second speed reducer 24 is connected with a driving roller 212 of the main conveying line 2, so that the main conveying line 2 is driven by the second motor 23.

As shown in fig. 5, the separating conveyor line 4 is a separator conveyor belt, and includes a separator belt 41, a bracket 42, a rear leg 43, and a front support plate 44, wherein a plurality of separators 411 are disposed at intervals on an outer circumferential surface of the separator belt 41, a driving roller and a driven roller of the separator belt 41 are respectively mounted at front and rear ends of the bracket 42, the front end of the bracket 42 is mounted on the front support plate 44, the rear end of the bracket is mounted on the rear leg 43, the front support plate 44 is fixed on a corresponding side of the support beam 21, and the rear leg 43 is supported on the ground. One side of the front supporting plate 44 is provided with a third motor 45, an output shaft of the third motor 45 is in driving connection with a third speed reducer 46, and an output shaft of the third speed reducer 46 is connected with a driving roller of the partition plate belt 41, so that the branch conveying line 4 is driven by the third motor 45.

Further, as shown in fig. 6, a first sensor 25 for sensing the zongzi is arranged at the head end of the main conveying line 2, the first sensor 25 is an ohm dragon photoelectric switch with the model number of E3Z-T61, the first sensor 25 is installed on the side of the supporting beam 21, and when the zongzi passes through the main conveying line 2, the first sensor 25 can sense a signal; further, as shown in fig. 7, an encoder 26 is connected to the driving roller of the main conveyor line 2 in a driving manner, and when the second motor 23 rotates, the encoder 26 follows the rotation.

As shown in fig. 8, this zongzi pairs equipment still be equipped with first sensor 25, encoder 26 signal connection is with the controller according to the first motor 32 of received signal control, the controller adopts PLC, 5 also signal connection on the conveyer belt of weighing 5 to the controller, the conveyer belt of weighing 5 sends the controller with the weight information of the zongzi of calling out, the controller pairs the zongzi according to the weighing information that 5 transmission of the conveyer belt of weighing was come, and dial two zongzi that will pair through the first motor 32 of control and send to same branch transfer chain 4 on.

The controller controls the material stirring device 3 to stir and send the rice dumplings to the sub-conveying line 4 as follows: when the zongzi moves to first sensor 25 department, first sensor 25 sends a signal to the controller, and the controller begins to calculate the distance of removal of this zongzi on main transfer chain 2 according to the signal that encoder 26 transmitted, and when the distance that moves reached main transfer chain 2 and corresponds to the branch transfer chain 4 department of being dialled and send, this divides material device 3 that dials that transfer chain 4 corresponds to dial this zongzi and send to this branch transfer chain 4 on.

As shown in fig. 5, second sensors 47 for sensing the partitions 411 on the branch lines 4 are disposed on two sides of the support 42 of the branch line 4, the second sensors 47 are also implemented by an ohron photoelectric switch with model number E3Z-T61, and the second sensors 47 can sense signals when each partition 411 passes by the second sensor 47.

The controller is in signal connection with the second sensor to control the third motor 45 in dependence of the received signal. As shown in fig. 8 again, after the controller records that two paired zongzi are dialled to the branch transfer chain 4 each time, the controller controls the third motor 45 to start, and the third motor 45 drives the baffle belt 41 to rotate one check, namely, rotates the distance of the interval size of two baffles 411, and simultaneously, when the belt 41 rotates one check, the second sensor senses that the next baffle arrives, sends a signal to the controller, and the controller controls the third motor 45 to stop rotating, and a set of paired zongzi can be stored between two adjacent baffles 411.

And (4) manually boxing the matched rice dumplings at the tail end of the distribution conveying line 4.

Further, as shown in fig. 9, the zongzi pairing device further comprises a feeding system, the feeding system comprises a material arranging conveyer belt 71, an arranging conveyer belt 72 and an accelerating conveyer belt 73, the arranging conveyer belt 72, the accelerating conveyer belt 43, the weighing conveyer belt 5 and the main conveyer belt 2 are sequentially arranged, the material arranging conveyer belt 71 is arranged on one side of the head end of the arranging conveyer belt 72, a baffle 721 is arranged on the upper surface of the arranging conveyer belt 72, the baffle 721 is mounted on the frame of the arranging conveyer belt 72, a certain distance is kept between the baffle 721 and the upper surface of the arranging conveyer belt 72, and friction between the baffle 721 and the arranging conveyer belt 72 is prevented. The baffles 721 extend along the length of the aligning conveyor 72 so that the zongzi are aligned in a row along the baffles 721.

The end of the material arranging conveyer belt 71 is located above the arranging conveyer belt 72 and close to the baffle 721, so that the rice dumplings fall and are arranged in the gap between the end of the material arranging conveyer belt 71 and the baffle 721, the width of the gap between the end of the material arranging conveyer belt 71 and the baffle 721 is slightly larger than the width of one rice dumpling, and after the rice dumplings fall into the gap between the end of the material arranging conveyer belt 71 and the baffle 721, the rice dumplings can be arranged in a row in the gap.

The conveying speed of the former sorting conveyor belt 71 is designed to be 2 m/min, the conveying speed of the aligning conveyor belt 72 is designed to be 16 m/min, the conveying speed of the accelerating conveyor belt 73 is designed to be 40 m/min, the conveying speed of the weighing conveyor belt 5 is designed to be 80 m/min, and the conveying speed of the main conveyor line 2 is designed to be 60 m/min. Conveyer belt 73's the transport speed with higher speed is greater than range conveyer belt 72, reach behind conveyer belt 73 with higher speed when range conveyer belt 72 front end's a zongzi, conveyer belt 73 with higher speed conveys this zongzi immediately on weighing conveyer belt 5, the transfer speed of weighing conveyer belt 5 is also very fast, the zongzi after weighing conveyer belt 5 will weigh conveys main transfer chain 2 rapidly, guarantee to weigh on the conveyer belt 5 only to a zongzi each time, and the zongzi interval arrangement on main transfer chain 2, in order to pair on main transfer chain 2.

Further, still be equipped with protection cage 8 above dialling the material device, be equipped with bracing piece 81 on the support 31 of installing on support frame 1, protection cage 8 is installed on bracing piece 81. The protection cage 8 that sets up is in order to prevent to dial the too big zongzi departure that leads to of thrust when material device 3 is dialled the zongzi and can not accurately fall on dividing transfer chain 4.

Example 2:

a method for matching rice dumplings, please refer to fig. 10.

As shown in fig. 10, the zongzi pairing method using the zongzi pairing apparatus in embodiment 1 includes the following steps:

s100, sampling and weighing all manufactured rice dumplings, and calculating the average total weight and the error range of any two rice dumplings.

The zongzi comparative standard of batch production of mill, the size of every zongzi, weight itself are more close, and the average total weight and the error band of two arbitrary zongzi can be calculated in the sampling, and the probability that two zongzi that can mate each other were selected in the later stage is also great.

S200, temporary storage of the matched rice dumplings:

the zongzi conveys main transfer chain after the conveyer belt of weighing weighs, dials the zongzi that sends a main transfer chain through dialling the material device and keeps in on dividing the transfer chain for being paired zongzi, and each divides only keeps in on the transfer chain and is paired zongzi, records each and is paired the weight of zongzi.

In this step, because the zongzi is that one is weighing at the conveyer belt of weighing, only select a zongzi earlier as being paired zongzi, can select in the zongzi in the back can with this be paired zongzi assorted and mate the zongzi. The controller records the weight of the matched rice dumplings and which distribution line to store.

S300, finding matched rice dumplings for the matched rice dumplings:

if the difference value between the total weight and the average total weight of a certain rice dumpling on the main conveying line and the matched rice dumpling temporarily stored on a certain branch conveying line is within an error range, determining that the rice dumpling on the main conveying line is the matched rice dumpling; when should pair the zongzi and follow main transfer chain and convey the assorted and be paired the material device of dialling that the zongzi corresponds, will pair the zongzi through dialling the material device and dial and send to corresponding branch transfer chain on, make and be paired the zongzi and pair the zongzi and converge.

In this step, the controller superposes the weight of the zongzi of pairing that weighs after with the prerecorded in proper order by the weight of the zongzi of pairing, seeks the zongzi that can pair for being paired the zongzi. If the later-weighed rice dumplings can not be matched with any one of the previous matched rice dumplings, the later-weighed rice dumplings are transferred to an empty sub-conveying line to be temporarily stored as matched rice dumplings; if no spare branch conveying line exists, the rice dumplings weighed later are directly conveyed to the tail of the main conveying line to be collected, and then the rice dumplings collected at the tail of the main conveying line are placed on the material conveying line again to be subjected to secondary circulation pairing.

S400, after being paired zongzi on some branch transfer chain is sought to find and is paired zongzi and converge, should divide the transfer chain will be paired zongzi and pair zongzi and export together and deposit, should divide the transfer chain vacant back, continue to keep in according to step S200 and step S300 and be paired zongzi and look for and pair zongzi.

In this step, collect zongzi that has paired and the bagging-off through the manual work at the end of dividing the transfer chain, then will pair and the zongzi after the bagging-off transports vacuum packaging machine through the conveyer belt and packs.

Based on the embodiment, the zongzi pairing method provided by the invention adopts the assembly line type zongzi pairing equipment to pair the zongzi, and a plurality of pairs of paired zongzi are put into each packaging box, so that the weight of the zongzi stored in each packaging box is standardized, and the zongzi boxing and pricing are unified. The rice dumpling matching equipment is used for matching rice dumplings and can also be used for matching any other objects needing matching.

While the present invention has been described in detail with reference to the drawings and the embodiments, those skilled in the art will understand that various specific parameters in the above embodiments can be changed without departing from the spirit of the present invention, and a plurality of specific embodiments are formed, which are common variation ranges of the present invention, and will not be described in detail herein.

Claims (8)

1. A zongzi pairs equipment, its characterized in that includes:

a support frame;

the main conveying line is arranged on the support frame;

the material stirring devices are arranged on the support frame and are arranged at intervals along the main conveying line, each material stirring device comprises a support saddle which is arranged on the main conveying line in a crossing mode, a first motor is arranged on each support saddle, an output shaft of each first motor is connected with a rotating shaft in a driving mode, and a plurality of material stirring plates which are arranged in the axial direction are arranged on the outer peripheral surface of each rotating shaft;

a sub-conveying line is arranged on the left side and/or the right side of each material poking device, and the material poking devices are used for poking the rice dumplings on the main conveying line to the sub-conveying line;

the weighing conveyer belt is arranged at the head end of the main conveyer line and used for weighing the rice dumplings and conveying the rice dumplings onto the main conveyer line;

a first sensor used for sensing the rice dumplings is arranged at the head end of the main conveying line, the main conveying line is driven by a second motor, and an output shaft of the second motor is connected with an encoder in a driving manner; zongzi pairs equipment be equipped with first sensor, encoder signal connection are in order to control according to the received signal the controller of first motor.

2. The rice dumpling matching device of claim 1, wherein the branch conveying line is a partition conveying belt driven by a third motor, second sensors for sensing the partition on the branch conveying line are arranged on two sides of the branch conveying line, and the controller is in signal connection with the second sensors to control the third motor according to received signals.

3. The rice dumpling pairing device of claim 1, further comprising a feeding system, wherein the feeding system comprises an arrangement conveying belt and an acceleration conveying belt, the conveying speed of the acceleration conveying belt is higher than that of the arrangement conveying belt, and the arrangement conveying belt, the acceleration conveying belt, the weighing conveying belt and the main conveying line are arranged in sequence.

4. The rice dumpling mating apparatus of claim 3, wherein a baffle is provided on the upper surface of the arrangement conveyor belt, the baffle extending along the length direction of the arrangement conveyor belt so that rice dumplings are arranged in a row along the baffle.

5. The rice dumpling pairing device according to claim 3, wherein a material arranging conveying belt is further arranged at the front end of the arranging conveying belt, one end of the material arranging conveying belt is located above the arranging conveying belt and close to the baffle, so that rice dumplings fall down and are arranged in a gap between the end of the material arranging conveying belt and the baffle.

6. The rice dumpling pairing equipment of claim 1, wherein a protection cage is arranged above the material stirring device, and the protection cage is installed on the supporting frame.

7. The rice dumpling mating apparatus of claim 1, wherein a surface of the kick-out plate is coated with a soft layer.

8. A zongzi pairing method characterized in that the zongzi pairing apparatus of any one of claims 1 to 7 is used, comprising the steps of:

(1) sampling and weighing all manufactured zongzi, and calculating the average total weight and the error range of any two zongzi;

(2) temporary storage of the matched rice dumplings:

the rice dumplings are weighed by the weighing conveyer belt and then conveyed to the main conveyer belt, one rice dumpling on the main conveyer belt is pushed to the sub-conveyer belts through the material pushing device to be temporarily stored as paired rice dumplings, only one paired rice dumpling is temporarily stored on each sub-conveyer belt, and the weight of each paired rice dumpling is recorded;

(3) finding matched rice dumplings for the matched rice dumplings:

if the difference value between the total weight of a certain rice dumpling on the main conveying line and the paired rice dumpling temporarily stored on a certain branch conveying line and the average total weight is within the error range, determining that the rice dumpling on the main conveying line is the paired rice dumpling; when the paired rice dumplings are conveyed to a material poking device corresponding to the matched paired rice dumplings along a main conveying line, the paired rice dumplings are poked to a corresponding material poking conveying line through the material poking device, so that the paired rice dumplings and the paired rice dumplings are converged;

(4) after being paired zongzi on certain branch transfer chain is sought to find to pair the zongzi and is joined, should divide the transfer chain will be paired zongzi and pair zongzi and export in the lump and deposit, should divide the transfer chain vacant back, continue to keep in according to step (2) and step (3) and be paired zongzi and seek to pair the zongzi.

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