JP4152159B2 - Tea bag manufacturing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tea bag manufacturing apparatus used for manufacturing a tea bag, and more particularly to a tea bag manufacturing apparatus that facilitates an adjustment operation of a seal state.
[0002]
[Prior art]
As shown in FIG. 8, the tea bag manufacturing apparatus interposes the packaging material A between the ultrasonic horn 109 and the receiving member 107, emits ultrasonic waves from the ultrasonic horn 109, seals the packaging material A, and tees. Manufacture bags.
The seal molding mechanism 101 of the tea bag manufacturing apparatus rotates a hand-operated adjustment screw 105 having a dial 103 on the head, moves the receiving member 107 in the front-rear direction, and applies the pressing force of the receiving member 107 to the ultrasonic horn 109. The packaging material A is set to have an appropriate sealing state.
[0003]
However, in order to turn the adjusting screw 105, the tea bag manufacturing apparatus must be temporarily stopped and the safety cover opened before it can be adjusted. Therefore, until the desired sealing state is obtained, the safety cover of the tea bag manufacturing apparatus is opened and the adjustment screw 105 is turned, the safety cover is closed and the tea bag manufacturing apparatus is started to check the sealing state. There is a problem that the efficiency of the adjustment work is considerably poor and a quick adjustment work cannot be performed.
[0004]
In addition, it takes a certain amount of time for the ultrasonic horn 109 to start operating until it reaches a stable range. Therefore, in order to perform continuous sealing, it is necessary to keep the ultrasonic horn 109 in an always operating state.
However, the ultrasonic horn 109 that performs sealing in the horizontal direction is in direct contact with the receiving member 107 until the next packaging material A is sent after the sealing is completed, and the receiving member 107 is subjected to ultrasonic shock. The damage and wear are also a problem because they are receiving.
[0005]
[Problems to be solved by the invention]
The present invention has been made paying attention to the above-mentioned conventional problems, and is capable of adjusting the pressing force of the receiving member against the action portion of the ultrasonic horn while performing the sealing operation of the packaging material. The object is to provide an apparatus.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problem, the tea bag manufacturing apparatus according to claim 1 includes an ultrasonic horn that generates ultrasonic waves, a receiving member that is provided to face an action portion of the ultrasonic horn, and the receiving member. The packaging material sent between the ultrasonic horn for the vertical seal and the receiving member has drive means for moving back and forth with respect to the action part of the ultrasonic horn for the vertical seal and the horizontal seal, respectively. A cylindrical packaging material that has been vertically sealed into a cylindrical shape and sent between the ultrasonic horn for horizontal sealing and the receiving member is laterally sealed and cut, and a tea bag to be filled with tea leaves from now on. any in tea bag manufacturing device for manufacturing the tea bag by lateral seal part of the upper portion of the lower already teabag tea sheets filled with lateral sealing portion of is formed, in and for the lateral sealing for longitudinal seal The drive means is composed of an air cylinder, and further includes a rectifier for adjusting the air pressure of the air cylinder and an operation unit connected thereto, so that an appropriate seal state can be set at the time of sealing by remote operation of the operation unit. The position of the receiving member is adjusted, and in the case of horizontal sealing, when the unsealing operation is performed between the horizontal seal and cut, the receiving member is retracted to a position where it does not directly contact the action part of the ultrasonic horn, It is characterized in that it is configured to return to the adjustment position at the time of sealing work .
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the tea bag manufacturing apparatus 1 which concerns on embodiment of this invention is demonstrated.
The outline of the whole structure of the tea bag manufacturing apparatus 1 is demonstrated first, and the detail of the specific structure of the seal molding mechanism 31 is demonstrated after that.
The tea bag manufacturing apparatus 1 is a so-called bag making and filling apparatus, and forms a tea bag T by a sheet-like packaging material A wound up in a roll shape. That is, as shown in FIG. 7, the packaging material A is folded in two by forming a fold line L in the longitudinal center, and the side edge a of the packaging material A facing the fold line L is sealed in the longitudinal direction. A shaped packaging material A is formed.
[0011]
Next, after sealing and cutting the lower part of the packaging material A in the lateral direction, a tea bag T filled with a predetermined amount of tea leaves B and further sealed and cut in the lateral direction at the upper part to form a tea bag T sealed on three sides. Manufacture continuously.
The seal at the side edge a of the tea bag T is a vertical seal portion V, and the seal at the top and bottom of the tea bag T is a horizontal seal portion H. The upper and lower seals of the tea bag T are simultaneously formed by a single sealing and cutting operation.
[0012]
As shown in FIG. 1, the tea bag manufacturing apparatus 1 is in a deployed state in which the hopper 5 that stores tea leaves B, the feeding wheel 7 that sets the packaging material A, and the feeding wheel 7 are placed above the apparatus body 3. The guide roller 9 that guides the packaging material A up and down, and the unfolded packaging material A that is guided and conveyed by the guide roller 9 in a cylindrical shape from the inside so that a fold line L is formed at the center in the longitudinal direction. A packaging material formation guide unit 11 to be bent, a measuring unit 13 for measuring the amount of tea leaves B to be filled and supplying the packaging material A and an input chute 15 are provided.
[0013]
A support rod 17 that supports a cylindrical packaging material A that extends downward from the packaging material formation guide portion 11 from the inside and a seal molding portion 31 that will be described later are provided on the upper portion of the apparatus main body 3.
A discharge chute 19 for discharging the completed tea bag T is provided at the lower part of the apparatus main body 3.
As a material of the packaging material A of the tea bag T manufactured by the tea bag manufacturing apparatus 1, a non-woven fabric made of polyethylene such as a non-woven fabric made of polyethylene fiber, a non-woven fabric made of polypropylene fiber, or a non-woven fabric made of nylon can be applied.
The tea leaves B filled in the packaging material A include green tea, black tea, coffee and the like.
[0014]
The seal molding mechanism 31 is a so-called ultrasonic seal type seal molding mechanism. The seal molding mechanism 31 includes an ultrasonic horn 33 that generates ultrasonic waves, and a receiving roll 37 as a receiving member provided to face the end surface of the ultrasonic horn 33 on the side of the operating portion 35.
The receiving roll 37 and the ultrasonic horn 33 of the tea bag T are provided with two sets for forming the vertical seal portion V and forming the horizontal seal portion H.
The action portion 35 of the ultrasonic horn 33 has a shape that gradually decreases in a taper shape and reaches a small-diameter portion having a round bar shape.
[0015]
As shown in an enlarged view in FIG. 6, the receiving roll 37 has a disk shape and is rounded on the peripheral surface thereof.
The receiving roll 37 is attached to a slider 43 of an air cylinder 41 as a driving means, and can advance and retract with respect to the ultrasonic horn 33. The air cylinder 41 is connected to a regulator 45 that keeps the pressure of the air sent to the air cylinder 41 at a desired value. An operation unit 47 is provided on the front surface of the apparatus main body 3, and an operation button 48 is disposed on the operation unit 47. By operating the operation button 48, an on-off valve (not shown) is opened and closed to supply and stop air sent from a compressor (not shown) to the regulator 45.
[0016]
As shown in FIG. 2, an ultrasonic horn 33 and a receiving roll 37 are provided in the horizontal seal molding portion 49 that forms the horizontal seal portion H of the tea bag T. The horizontal seal molding part 49 is provided with a holder 51, and this holder 51 is formed in a U-shape in plan view having an opening 52. The holder 51 holds an ultrasonic horn 33 and a receiving roll 37. The ultrasonic horn 33 is fixed to the holder 51, and the receiving roll 37 is attached to the ultrasonic horn 33 so as to be movable in the approaching / separating direction.
[0017]
Reference numeral 53 denotes a rodless cylinder, which is located above the ultrasonic horn 33. A shaft holder 57 is fixed to the lower surface of the holder 51. The shaft holder 57 is connected to the rodless cylinder 53 and is slidably supported on the guide shaft 55.
[0018]
Reference numeral 59 denotes a sandwiching arm, and the sandwiching arm 59 includes a pair of left and right arm elements 61 and 63. The arm elements 61 and 63 are slidably held by a sandwiching shifter 69 so that they can approach and separate in the thickness direction of the packaging material A. One arm element 61 is provided with two pressing members 65 made of silicone rubber and formed in a column shape in the vertical direction. The other arm element 63 is formed with a tapered contact surface 67 that contacts the peripheral surface of the pressing member 65 at a position corresponding to the pressing member 65.
[0019]
As shown in FIG. 5, the vertical seal molding portion 71 that forms the vertical seal portion V of the tea bag T includes an ultrasonic horn 33 and a receiving roll 37. These ultrasonic horns 33 are fixed to the apparatus main body 3, and the receiving roll 37 is attached to the ultrasonic horn 33 so as to be movable in the approaching / separating direction.
Further, the vertical seal molding portion 71 is provided with an upper facing roller 73 above the ultrasonic horn 33 and the receiving roll 37 and a lower facing roller 75 below.
The upper facing roller 73 is a member that holds the side edge a of the folded packaging material A from the outside, and the lower facing roller 75 is a member that holds the vertical seal portion V of the packaging material A that has a cylindrical shape. The packaging material A is held in tension between the upper facing roller 73 and the lower facing roller 75.
[0020]
Next, operation | movement of the tea bag manufacturing apparatus 1 is demonstrated.
The packaging material A wound up in a roll shape is attached to the feeding wheel 7, and the starting end thereof is fed out and wound between the upper and lower guide rollers 9, and then bent into a U shape by the packaging material formation guide portion 11. , And supplied to the vertical seal molding unit 71.
The packaging material A that has reached the vertical seal molding portion 71 is held in a cylindrical shape by the upper facing roller 73 with its side edges a being overlapped.
[0021]
In this state, the packaging material A is sent downward by the upper facing roller 73 by one pitch corresponding to the height dimension of the tea bag T, and the ultrasonic horn 33 and the receiving roll 37 positioned below the upper facing roller 73. And the longitudinal seal portion V is formed. Further, the vertical sealing portion V is formed, and the cylindrical packaging material A is further sent downward by the lower facing roller 75 positioned below, and reaches the horizontal seal forming portion 49.
The packaging material A reaching the side seal molding portion 49 is in a tension state so that the arm shifter 69 extends to bring the arm elements 61 and 63 closer to each other and the packaging material A is not displaced by the pressing member 65 and the contact surface 67. Hold the packaging material A.
[0022]
Next, the rodless cylinder 53 is actuated, and the holder 51 initially waiting on the front side (lower left in FIG. 2) travels outward toward the packaging material A. Since the ultrasonic horn 33 and the receiving roll 37 travel in the forward path together with the holder 51, the lower part of the packaging material A sent from above is thereby sealed and cut in the lateral direction.
Then, a predetermined amount of tea leaves B measured by the measuring unit 13 passes through the charging chute 15 and is filled into the packaging material A. Further, the packaging material A is fed downward by one pitch by the feeding operation of the upper facing roller 73 and the lower facing roller 75, the rodless cylinder 53 is operated, and the ultrasonic horn 33 and the receiver held by the holder 51 are received. The roll 37 travels in a backward direction toward the standby position on the near side.
[0023]
As a result, the upper part of the packaging material A is sealed and cut in the lateral direction, and the holding operation by the holding arm 59 is released by the expanding operation of the arm elements 61 and 63, and the tea bag T in a bag-like shape is sealed on the three sides downward. Is discharged through the discharge chute 19.
The lower part of the packaging material A held by the upper facing roller 73 and the lower facing roller 75 is simultaneously sealed by the sealing and cutting. Then, filling of tea leaves B, feeding by one pitch by the upper facing roller 73 and the lower facing roller 75, holding of the packaging material A by the sandwiching arm 59, sealing and cutting by the ultrasonic horn 33 and the receiving roll 37 are performed. The tea bag T is manufactured, and the tea bag T is continuously manufactured by repeating the same operation.
[0024]
Next, an operation for adjusting the seal state of the vertical seal portion V or the horizontal seal portion H will be described.
In this case, by pressing the operation button 48 arranged in the operation unit 47 without opening the safety cover 77, the receiving roll 37 can be operated while sealing the packaging material A, and the sealing state can be adjusted. That is, when the operation button 48 is pressed, air is supplied to the regulator 45, and the slider 43 of the air cylinder 41 is moved by an extremely small stroke by remote operation, whereby the receiving roll 37 is moved to the action portion 35 of the ultrasonic horn 33. Move close to and away from each other. Therefore, if the pressing force with respect to the action part 35 of the ultrasonic horn 33 is adjusted via the packaging material A of the receiving roll 37 while observing the sealing state of the vertical seal part V or the horizontal seal part H, the tea bag manufacturing apparatus 1 The operation of setting an appropriate sealing state can be performed while sealing the packaging material A without repeating stop and start. Therefore, the adjustment operation of the sealing state of the packaging material A can be performed efficiently and quickly.
[0025]
Note that, after the end of the horizontal seal and cut, the slider 43 of the air cylinder 41 may be contracted to retract to a position where the receiving roll 37 does not contact the ultrasonic horn 33. In this case, when performing the next sealing and cutting, the slider 43 of the air cylinder 41 is again extended to return the receiving roll 37 to the original position. By doing so, it is possible to avoid a state in which the end face of the ultrasonic horn 33 on the side of the acting portion 35 and the receiving member 37 are in direct contact without the packaging material A when unsealed, and the damage and wear of the receiving member are reduced. it can.
[0026]
Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change without departing from the gist of the present invention. include.
For example, the receiving member is not limited to a disk shape like the receiving roll 37 shown in the above embodiment, and various shapes can be adopted. Further, instead of the combination of the air cylinder 41 and the regulator 45 as a driving means or a movement amount adjusting means, a combination of a rack and pinion mechanism and a gear head, a combination of a motor cylinder and a linear encoder, etc. are provided. It is also possible to adopt a configuration that controls movement.
[0027]
In the illustrated embodiment, the receiving roll 37 is driven by the air cylinder 41 on both the horizontal seal molding portion 49 and the vertical seal molding portion 71 side. On either side, a dial-type adjusting screw can be used as a driving means for the receiving roll 37.
[0028]
【The invention's effect】
According to the tea bag manufacturing apparatus of the present invention, the pressing force of the receiving member against the action portion of the ultrasonic horn can be adjusted while performing the operation of sealing the packaging material without repeating the stop and start. Thus, the adjustment operation of the seal state can be performed efficiently and quickly.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a tea bag manufacturing apparatus to which a seal molding mechanism according to an embodiment of the present invention is applied.
FIG. 2 is a perspective view showing a lateral seal molding portion of the seal molding mechanism according to the embodiment of the present invention.
FIG. 3 is a side sectional view showing a horizontal seal molding portion of FIG. 2;
4 is a plan view showing a horizontal seal molding portion of FIG. 2. FIG.
FIG. 5 is a perspective view showing a vertical seal molding portion of the seal molding mechanism according to the embodiment of the present invention.
6 is an enlarged side sectional view showing the periphery of the receiving roll in FIG. 3;
FIG. 7 is an explanatory view showing a change in shape of the packaging material from the packaging material until the tea bag is manufactured.
FIG. 8 is a side sectional view showing a conventional seal molding mechanism.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tea bag manufacturing apparatus 3 Apparatus main body 5 Hopper 7 Feeding wheel 9 Guide roller 11 Packaging material formation guide part 13 Weighing part 15 Input chute 17 Supporting rod 19 Unloading chute 31 Seal molding mechanism 33 Ultrasonic horn 35 Action part 37 Receiving roll (receiving) Element)
39 Contact part 41 Air cylinder (drive means)
43 Slider 45 Regulator (Movement adjustment means)
47 Operation part 48 Operation button 49 Horizontal seal molding part 51 Holder 52 Opening 53 Rodless cylinder 55 Guide shaft 57 Shaft holder 59 Clamping arm 61, 63 Arm element 65 Pressing member 67 Abutting surface 69 Clamping shifter 71 Vertical seal molding part 73 Upper facing roller 75 Lower facing roller 77 Safety cover S Packaging material A Packaging material T Tea bag B Tea leaves L Folding line V Vertical seal part H Horizontal seal part a Side edge

Claims (1)

An ultrasonic horn for generating ultrasonic waves, a receiving member provided opposite to the action part of the ultrasonic horn, and a driving means for moving the receiving member forward and backward with respect to the action part of the ultrasonic horn are for vertical sealing. And the horizontal sealing ultrasonic horn and the receiving member, the packaging material sent between the vertical sealing ultrasonic horn and the receiving member is vertically sealed into a cylindrical shape. The cylindrical packaging material sent between the members is laterally sealed and cut, and the laterally sealed portion at the lower part of the teabag to be filled with tea leaves and the upper side of the teabag already filled with tea leaves in tea bag manufacturing device for manufacturing the tea bag by the sealing portion is formed, both the for longitudinal sealing in a transverse sealing driving means is formed of an air cylinder, further the air cylinder It includes a rectifier that adjusts the atmospheric pressure and an operation unit connected thereto, and the position of the receiving member is adjusted so that an appropriate seal state can be set during sealing by remote operation of the operation unit. It is configured that the receiving member retracts to a position where it does not directly contact the action part of the ultrasonic horn during the unsealing operation between the sealing and cutting in the direction, and returns to the adjustment position during the sealing operation. Tea bag manufacturing apparatus characterized by the above.

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