JPS63178901A - Bagging device for tea - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Fields of application of the N-leaf This invention is a tea bagging system in which processed tea (raw tea) is placed in a special bag called a large bag by the exact weight. This II
! It is an IIT.

(0) Conventional technology At a rough tea factory, several tons to tens of tons of tea can be produced per day during the peak tea season. Because the unit price of tea is decreasing day by day, the tea bagging work is often done early in the morning before the tea is released, so it is short *+'! You need to complete bagging the tea within 1+.

In addition, the weight of tea put into a large sea bag is usually 9 in 30, so it is necessary to accurately measure it.

Conventionally, there are devices that automatically add tea to a large sea bag and measure the tea, such as the invention disclosed in Japanese Patent Application Laid-Open No. 59-2095N.

(8) Problems to be Solved by the Invention The above-mentioned conventional invention uses a packet conveyor chute that can be switched to input a large amount of tea or a small amount of tea.
Below the chute, a weighing pool, conveyor hopper, and large sea bag holder are arranged in sequence.

However, first, a large amount of tea is added to one measuring pool, and then a small amount is added, so the time required to add a small amount becomes longer.
#l It takes a long time to complete the final measurement of tea, resulting in poor efficiency. By the way, when switching from the above-mentioned large amount input to small amount input, the +
k (almost input 1!!) is produced, so considering the margin, the time required for inputting a small amount naturally increases to some extent. Therefore, the time required for bagging the tea increases, which is not efficient.

In addition, approximately 30 kg of tea is weighed in one weighing pool, and a conveyor hopper is installed below the weighing pool, so the equipment becomes large and can be installed on a narrow site in a mountainous area. It is unsuitable for use in rough tea factories where there is a lot of waste.

The object of the present invention is to provide a tea bagging device I that does not have the drawbacks of the prior art as described above.

(d) Means for Solving the Problems In order to achieve the above object, the present invention provides a tea supply conveyor equipped with an input chute at its input end, and an H@L/ A shack that can be opened and closed, a weighing conveyor disposed below the input chute, a large sea bag holder that removably holds the large sea bag and is swingable and disposed below the delivery ledge of the weighing conveyor, and the above-mentioned input chute. It consists of a branching chute branched from the holder, and a withdrawal means capable of transporting large sea bags that have fallen off from the holder to a platform scale installed below the branching chute.

(This) Embodiment Figures M1 to M5 show embodiments of this invention, and modifications of this invention will also be explained based on the drawings.

1 is a packet conveyor (tea supply conveyor) equipped with an input chute 2 at its upper tea input end 11, and a tea temporary storage and 8 sets at its lower tea reception end 12. A lifting conveyor 13 connected to the assembly machine is connected.

do.

Immediately below the input chute 2, a weighing conveyor 3 is installed.The weighing conveyor 3 has an F! joy belt 31 on its bottom surface that can be operated and stopped freely, and on the endless belt 31 there are left and right walls 32 and a starting end. ! 33 and the delivery end ! 234 which is suspended like a curtain and can be freely tilted, the tea can be transferred to the storage section 30.
Further, the housing portion 30 and the entire endless belt 31 are placed on a platform scale 35 using a load cell.

A holder 4 for a large sea bag 49 is disposed below the delivery end of the weighing conveyor 3. The holder 4 consists of a substantially cylindrical chute 41 having a slightly smaller diameter than the inlet of the large sea bag 49, a band 42 for tightening the large sea bag, and a shoe 44.

A small vibrating conveyor 25 is disposed on the side of the input chute 2, close to the input port 24 at the lower end of the 0-branch chute 23 in which the branch chute 23 branches downward. A precision platform scale 5 is mounted 11T on the floor below the sending end of the photographing conveyor 25.

Platform scale 5
In the meantime, a conveyor 6 for transporting the large sea bags 49 is provided.

7 is the contact point of the limit switch 51 for checking the total [L] of the platform scale 35.5 and the large sea bag 49 on the platform scale 5 (the contact signal of No. 8 and each command switch on the surface is input, and the air cylinder 22.43 and endless belt 31 of weighing conveyor 3
It is a control panel that appropriately drives the camera, camera conveyor 25.13, packet conveyor 1, drive unit 44, transport conveyor 6, etc., and its block diagram is shown in Figure 3, and its flowchart is shown in Figure 4.5I21. Now, in order to bag tea in this embodiment, first, place a large sea bag 49 on the lower part of the chute 41 of the holder 4 and press it temporarily. Then, the air cylinder 22 is extended to open the shutter 21 of the chute 2, and at the same time the packet conveyor 1 and the vibration conveyor 13v! are driven. ), the tea is taken out in small quantities from the combination machine, and is passed through the vibrating conveyor 13, the packet conveyor 1, and the chute 2 into the storage section 30 of the weighing conveyor 3. Of course, if there is no tea on the vibrating conveyor 13 after the start W, no tea is added during that time.

The tea by the packet conveyor 1 and the vibration conveyor 13 are immediately closed (the air cylinder 22 is contracted), and the weight W1 of the tea delivered into the storage part 30 is exaggerated. Incidentally, the time required for this measurement is assumed to be T1. After weighing, wireless belt 3
1, the tea in the storage section 30 moves toward the delivery end, pushes open the delivery end wall 34, and falls into the large sea bag 49 held by the holder 4. Large sea bag 49 is shoot 4
1, so that the tea that falls is evenly packed from the bottom.

When the wireless belt 31 is driven at T2 for a few seconds, the brown color disappears, so the wireless belt 31 is stopped and the shirt starter 21 is driven again.
It opens and closes for about 1 second. At V, the tea is being supplied by the packet conveyor 1 etc. even during the period [(T1 +72) time] when the shutter 21 is closed, so the tea accumulated in the chute 2 is also added to the tea. and placed into the storage section 30.

And in the same way as above, the 11 amount W of tea supplied to □ during that time
2, the endless belt 31 is driven at T2 for several seconds, and the tea placed in the container 30 is placed in the large groove bag 49.

In this way, while the opening/closing of the shack 21, the weighing, and the driving of the endless bench 31 are repeated in sequence, the packet conveyor 1 and the like are temporarily stopped after passing the tea W1 to the large sea bag 49. Then, when the inside of the storage section 30 is empty, the packet conveyor 1 etc. are moved again, the shutter 21 is also opened, and tea is continuously thrown in, and the thrown weight W n + l is totaled, 11 ! do. The total SW (=W
1 +W2 +W3+...+Wn +Wn + 1)
However, when the value exceeds the next predetermined value SW2, the packet conveyor 1 and the like are stopped, and the shutter 21 is also closed. Then, the wireless belt 31 is driven to the maximum (diamond brown Wn+1
When I put one large bag of 49, the air cylinder 43v
! It also separates from the temporary pressing member 44 and falls downward.

By the way, the above-mentioned predetermined values SWi and SW2 for the total SW of the added weight of tea are set in advance by calculation as follows. That is, in this invention, as described above, a large amount of tea is intermittently repeatedly supplied into the large sea bag 49 via the chute 2 and the weighing conveyor 3, which is a large amount of tea that is almost continuously supplied by the packet conveyor 1 or the like. There is also a small amount feeding method in which tea is fed little by little via a branch chute 23 and a vibrating conveyor 25, which will be described below. Then, most of the 11 permissible input weight 5W3 (9 to 30) of tea into the large sea bag 49 is added by the above-mentioned large amount, and the remaining small amount is added to a small amount of liters.
Input by input. The weight that serves as a guideline for transitioning from this large amount of input to small amount of input is the above-mentioned predetermined value SW2. In the embodiment, in order to shorten the time required to add a small amount of tea and also take into consideration the possibility that some extra tea in the packet may be added when the packet conveyor 1 is stopped, S W 2 = 29 [
Let it be kql. In addition, in the embodiment, the target value S w 2 (29
[kql), 1 in the storage section 30 of the weighing conveyor 3
Since the l1ffl of tea that can be stored at a time has been reduced to less than a fraction of the amount, the tea in the storage section 30 is fed n+1 times as described above, and the amount of tea per hour is reduced by the conveyor 1 or the like. Supply of! II In addition, the number of times the above tea is required to be added n
+1 changes. Therefore, the value W of one tea injection Mffl is set in advance, for example, 7 [kql], and the actual tea injection weight w1 is repeated during T.
If there is a maximum value among ~Wn that exceeds the above value W, that value is replaced as the value of the above bond W. Then, the target value SW
The value obtained by subtracting this value W from 2 is set as the predetermined value SW1. Therefore, as mentioned above, the total SW of the weight of the tea thrown into the large sea bag 49 from the storage section 30 exceeds the predetermined 11 sWl at 1 hour of the nth time, so the batchwise repeated feeding ends there. However, at the next (n+1)th time, tea is supplied into the storage section 30 until the next total SW exceeds the next predetermined value SW2. Then, the tea can be quickly and accurately poured into the large groove bag 49 at a weight that is approximately equal to the target l111SW2 when a large amount is poured.

Returning to the front, when the large bag 49 into which approximately jisW2 of tea has been input due to the large quantity input is detached from the holder 4 and falls, it falls onto the starting end of the conveyor 6 disposed below. Then, the transport conveyor 6 carries out #l-like weighing value SW.
Since the weight of the tea is less than 3, the weight of the tea is measured using the platform scale 5, and the tea is fed into the large sea bag 4 by adding the above-mentioned small amount until the final weight value SW3 (usually 30 to 9) is reached.

That is, tea is thrown into the branching chute 23 during the above-mentioned large quantity feeding, and the tea accumulates with the bottom surface of the photographing conveyor 25, so when the vibrating conveyor 25 is operated, the tea is sent out. Tea is continuously poured in very small amounts into a large sea bag 49 located 11V above the end. When the TIi amount of tea in the large groove bag 49 reaches the final weighing value SW3, the photographing conveyor 25 is stopped by a command from the control 11117 connected to the platform scale 5.
9 is removed by an operator or by an appropriate actuator such as τ, and transported to the next packing process.

On the other hand, by the time a small amount of tea is put into this large sea bag 49, the holder 4 has already become the king. Attach it and add a small amount of tea: Go to M line and add a large amount of tea as described above.

Then, the tea that is continuously supplied from the pre-blending machine is kneaded in this way and then packed into bags.

In this embodiment, the weighing conveyor 3 is made small and a large amount of tea is repeatedly put into the large sea bag 49 in batches, so that the measurement of tea is stopped except once for @bond. It is possible to perform more accurate measurement, and the weight body can be made smaller.

In addition, a shutter 21vP is provided on the input chute 2 so that the weighing conveyor 3 measures and discharges the tea, and the tea that is continuously supplied from the packet conveyor 1 etc. is temporarily stored in the input chute 2. Therefore, it is possible to input a large amount of tea in batches by the measuring conveyor 3 without interrupting the continuous supply of tea by the packet conveyor 1 or the like.

Moreover, since the conveyance of the coffee beans 49 is automatically carried out while the small amount of tea is being added in parallel, the transition from adding a large amount to adding a small amount of tea is automatically performed.

By the way, in the embodiment, a means for detecting excess tea is provided in the final part of the vibrating conveyor 13 by suspending a plate piece 15 from the tip of the contact of the limit switch 14. When the amount of tea consumed changes, the tea accompaniment such as Packet Koshibeya 1! 8 quantity, then (weighing conveyor 3
The one-time total iimwn changes greatly and often exceeds predictions! The extraction of tea in machine a is stopped, and the vibration conveyor 13 is operated intermittently at regular intervals. Then, the tea is stably supplied by the packet conveyor 1.

(f) Effects of the Invention Although it is very important to put a small amount of tea into the large groove bag 49 in order to match the amount of tea ii to the final measurement 11sW3,
Even if the total input tray is small, it takes a relatively long time to input. In this invention, a large amount of tea can be inputted via the inputting chute 2 and the weighing conveyor 3, and a small amount of tea can be inputted via the branching chute 23, respectively, into different large sea bags 49, so that Bagging operations including accurate final calculations can be carried out in a significantly short time,
The efficiency of tea bagging operations is improved.

In addition, since the total weight of tea when transitioning from large amount to small amount is added by the weighing conveyor 3 and multiplied by 11, the total weight becomes very close to the predetermined value SW2. of! ! It can be made smaller than the weight of the mold, which shortens the time required to charge a small quantity, allowing more time for operations such as conveying the large groove bag 49 and removing the large groove bag after the bagging operation is completed.
You can carry it with you. In addition, since the input end of the input chute 2 can be quickly closed by the shutter 21, when the packet conveyor 1 is stopped, the tea in the packets is 1.
Since there is no need for 2 times the amount of money and the tea can be added more directly to the meter, the entire device can be made smaller and a narrower rough tea pot can also be installed.

[BRIEF DESCRIPTION OF THE DRAWINGS] M1 and 2121 are the front view and left side view showing the embodiment of the present invention, respectively, and Figures 3.4 and 5 are the control panel 7, respectively.
FIG. 2 is a block diagram and a flowchart diagram. 1... Packet conveyor (tea supply conveyor) 2...
Input chute 21...Shutter 3...Weighing conveyor 23...Branch chute 5...Base scale 6...Transportation conveyor

Claims (1)

[Claims] A tea supply conveyor equipped with a charging chute at its charging end, a shutter that can be opened and closed attached to the charging end of the charging chute, a weighing conveyor disposed below the charging chute, and a large sea bag that is detachably held. A large sea bag holder that is swingable and placed under the sending end of the weighing conveyor, a branch chute branched off from the above-mentioned input chute, and a platform scale installed below the branch chute to transport the large sea bag that has fallen off from the holder. A tea bagging device comprising a conveying means capable of transporting tea.