JP4350413B2 - Packaged material metering device for automatic packaging machines - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaged material metering and feeding apparatus suitable for use in, for example, a vertical multi-row automatic filling and packaging machine capable of continuously molding a plurality of packaging bags at the same time.
[0002]
[Prior art]
For example, in a vertical multi-row automatic filling and packaging machine as seen in Patent Document 1, each of a hopper that supplies a material to be packaged and a material supply chute arranged in parallel below the hopper, A packaged material metering device having a structure as shown in FIG. 8 is provided to quantify the packaged material to be sealed.
[0003]
[Patent Document 1]
JP-A-9-272511 [0004]
In FIG. 8, 101 is a hopper for charging material to be packaged, 102 is a loading port, 103 is a scraper mounting frame provided so as to surround the loading port 102, and 104 and 105 are mounted on the mounting frame 103. The front and rear scrapers are shown. Reference numeral 110 denotes a weighing plate having an opening in the weighing mass 111. Reference numeral 112 denotes a fixed plate to which the tip of the weighing handle 113 is attached. When the handle 113 is rotated, the weighing plate 110 moves back and forth, and between the shutter 114 and the weighing plate. By changing the opening ratio of the weighing mass 111, the supply amount of the packaging material can be increased or decreased. Reference numeral 115 denotes a rack that meshes with a drive gear 120 that is rotated by a motor (not shown) and slides the weighing plate 110 back and forth with respect to the hopper insertion port 102.
[0005]
According to the above-described packaged material metering device, when the metering plate 110 is slid back and forth while feeding the packaged material from the hopper insertion port 102, the packaged material filled in the metering mass 111 is separated from the front scraper 104 and the rear scraper 104. Since the scraper 105 is sliced and quantified, when the weighing plate 110 returns to the position shown in FIG. 8 and the bottom surface of the weighing mass 111 is opened, the quantified packaging material becomes the lower chute 121. Then, it is supplied to the packaging portion of the automatic packaging machine through the supply pipe 122 and sealed and packaged.
[0006]
[Problems to be solved by the invention]
In the conventional packaging material metering device configured as described above, when the packaging material put in the weighing mass 111 is scraped by the front and rear scrapers 104 and 105, the surplus packaging material after scraping is weighed. There was a problem that it accumulated on the rear side of the plate 110 and overflowed to the outside of the measuring plate 110.
[0007]
When the packaging material overflows, the packaging material falls down as it is to contaminate the automatic packaging machine and its surroundings, and the packaging material overflowing between the heat sealer and the packaging film bites into the seal. Since this may cause problems, it has been desired to solve the problem.
[0008]
The problem of overflowing the material to be packaged occurred mainly on the rear side of the measuring plate 110 because the measuring mass 111 was close to the front side of the measuring plate 110 and the accumulation amount was small.
[0009]
The present invention has been made to solve the above-mentioned problems, and its technical problem is to average the accumulation of surplus packaging material after scraping by the scraper, so that the packaging material is supplied to the metering chamber. An object of the present invention is to provide an apparatus for measuring and supplying a packaging material for an automatic packaging machine so as not to overflow.
[0010]
[Means for Solving the Problems]
(1) In order to solve the above technical problem, in the packaging material weighing and supplying apparatus for automatic packaging machine according to the present invention, the packaging material is fed from the hopper to the weighing mass as described in the first aspect. By sliding the mass back and forth with respect to the hopper, the front and rear scrapers provided at the front and rear of the hopper inlet are quantified by sliding and then dropped into the lower chute for automatic packaging In the packaged material weighing and supplying apparatus for an automatic packaging machine, the weighing mass is configured to be slid in an inclined state with the front side viewed from the lower side with respect to a horizontal plane.
[0011]
(2) Further, according to the present invention, as described in claim 2, the mounting base on which the weighing substrate provided with the weighing mass is slidably attached back and forth is placed with the front side of the front side facing down with respect to the horizontal substrate frame . An angle adjusting means is provided that is pivotally attached to the tilted state, and that is configured so that the tilt angle of the mount relative to the substrate frame can be arbitrarily adjusted by moving the root end side up and down on the root end side of the mount. It is characterized by that.
[0012]
(3) Further, in the present invention, as described in claim 3, the angle adjusting means is a screw that is erected on the substrate frame and is inserted through the root end of the mounting base so as to be movable up and down. It is characterized by being comprised by the axis | shaft and the positioning nut attached to this screw axis | shaft so that rotation was possible.
[0013]
According to the means described in the above (1), the weighing mass slides back and forth in an inclined state in which the front side when viewed from the front is down, that is, in a state of front-down . As a result, the surplus packaging material after being scraped off by the front and rear scrapers moves to the front side, i.e., the front scraper side according to the inclination, and the accumulated amount is averaged. You can solve problems that overflow to the outside.
[0014]
According to the means described in the above (2) and (3), the inclination angle of the weighing mass that slides back and forth in the inclined state with the front side of the front view down, that is, the front-down state, can be arbitrarily adjusted. By adjusting the inclination angle in accordance with the conditions such as the properties and amount of the packaging material, it is possible to smoothly supply the packaged material to the automatic packaging machine side without overflowing the outside.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the above-described packaging material measuring and supplying apparatus for automatic packaging machines according to the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a multi-row automatic filling and packaging machine as an example of an automatic packaging machine embodying the present invention, and FIG. 2 is a perspective view showing a slitter portion and a supply pipe portion of the multi-row automatic filling and packaging machine. The multi-row automatic filling and packaging machine 1 includes a main body frame 1F. A hopper 2 that accommodates the material to be packaged is provided on the upper portion of the main body frame 1F. In the lower part of the hopper 2, the material to be packaged supplied from the hopper 2 can be distributed and supplied to, for example, 10 supply pipes 3 arranged in parallel in a downward direction. 2A is provided.
[0016]
On the upper end side of each supply pipe 3, a former 5 as a forming means for forming a packaging film slit into a plurality of strips by a slit means, which will be described later, and a chute 3H for receiving a material to be packaged are provided. Each former 5 is attached to the holder 6 side by side. A vertical sealer 7 is provided below the former 5. A horizontal sealer 8, a cutter device 9, and a discharge device 10 are provided below the vertical sealer 7.
[0017]
An operation panel box 11 is provided on the front left side of the main body frame 1F. The operation panel box 11 incorporates a CPU for electrically controlling the drive system of the multi-row automatic packaging machine 1. In addition, a patrol light 12 that is turned on when the operation is abnormal is provided at the upper part of the operation panel box 11, and a monitor screen 70 is attached to the front surface of the operation panel box 11.
[0018]
In FIG. 2, reference numeral FH denotes a winding roll around which a wide sheet-like packaging material film is wound, and is pivotally supported on the side of the main body frame 1 </ b> F so as to be rotatable and detachable. The packaging material film F fed out from the take-up roll FH is stretched over a guide roll and a tension roll and guided to a slitter FX. The slitter FX slits the packaging material film F into a plurality of packaging films F ′ along the feeding direction.
[0019]
The slitter FX is comprised from the upper roller 52 provided with the some cutter blade 51 ..., and the lower roller 53 which rolls with this upper roller. Each packaging film F ′ slit by the slitter FX is passed over two guide rolls 54 and 55 and then guided to the former 5. Each packaging film F ′ is pulled out by the reciprocating vertical movement of the horizontal sealer 8.
[0020]
The packaging film F ′ slit by the slitter FX is made into a cylindrical packaging material by the former 5, and is made into a cylindrical bag body by the vertical sealer 7 and the horizontal sealer 8. And the to-be-wrapped material is filled through the supply pipe 3 in the cylindrical bag body which consists of each packaging film F '. After the material to be packaged is filled, the opening on the bag is laterally sealed by the horizontal sealer 8, and the central portion of the horizontal seal is cut by the cutter device 9 and discharged by the discharge device 10.
[0021]
Next, the configuration of the metering device according to the present invention implemented in the multi-row automatic filling and packaging machine 1 configured as described above will be described. FIG. 3 is a side view clearly showing the configuration of the present invention, and FIGS. 4 and 5 are enlarged side views of the main part. In these drawings, 1F ′ is a support for supporting the hopper 2. A frame 1E is a board frame provided horizontally with respect to the main body frame 1F, and 20 is a mounting base attached to the upper surface of the board frame 1E. The whole mounting base 20 has a spring material 21 having a substantially hinge structure at the tip side. Is attached to the substrate frame 1E so as to be movable up and down (turning up and down freely).
[0022]
30 is a main body of the metering device attached to the upper surface of the mounting base 20, 32 is a left and right guide shaft erected on both left and right sides of the upper surface of the main body 30, and 40 is a front-rear direction on the upper surface of the main body 30. The left and right slide plates are slidable in the direction) (all of those provided on the front side of the drawing are omitted). Between these left and right slide plates 40, the left and right sides of the weighing substrate 45 'formed widely horizontally It is fixed in a state where both ends of the bridge are stretched.
[0023]
The entire weighing substrate 45 'is configured to cover the mouths of the chutes 3H of the supply pipes 3 arranged in parallel in the multi-row from the upper surface, and the positions of the chutes 3H are aligned with each other along the sliding direction. In addition, a plurality of long slide holes as the measuring mass 45T are formed in a substantially comb-like shape, and a measuring plate 45 formed in a strip shape is fitted into each of the long slide holes so as to be slidably adjustable. The opening portion of the slide long hole that is not blocked by the measuring plate 45 is a measuring mass 45T. 31 is a guide roller which contacts the upper and lower surfaces of the left and right slide plates 40 and guides the slide of the measuring plate 45 in the left and right direction in the drawing, and 41 is a slide bearing attached to the left and right slide plates 40. The bearing 41 is attached to the guide shaft 32 to guide the slide of the measurement board 45 ′ having the measurement plate 45 and the measurement mass 45T.
[0024]
Reference numeral 35 denotes a support plate (the front side in the drawing is omitted) attached to both sides on the upper surface side of the left and right slide plates 40 with a space in the front and rear (left and right in the drawing), and 36A and 36B are front and rear support members. Front and rear mounting frames 37 and 38 attached to each of the plates 35 and 35 so as to be installed across the upper surface of the weighing substrate 45 ′ are attached to the front and rear mounting frames 36A and 36B of the weighing substrate 45 ′. The scraper is shown before and after being mounted so as to cross the upper surface and so that each lower end portion formed in a knife shape is in light contact with the upper surface of the measuring substrate 45 ′.
[0025]
Reference numeral 34 denotes a wall plate provided at the periphery so as to surround the upper surface of the weighing plate 45 ', and the upper surface of the weighing substrate 45' surrounded by the wall plate 34 serves as a storage chamber for the charged packaging material. . 34H is a wall plate constituting one side of the wall plate 34 provided on the upper surface of the weighing substrate 45 ', and 42 is supported by support pieces 43, 43 attached to the left and right slide plates 40, so that the weighing plate 45 is supported by the weighing substrate. This is a measuring handle that moves forward and backward in the slide long hole 45 'to adjust the volume (size) of the measuring mass 45T that accommodates the packaging material.
[0026]
36 is a mounting plate installed between the front and rear scraper mounting frames 36A and 36B, and 39 is a state where the lower hopper insertion port 39T is faced between the front and rear scrapers 37 and 38 by using this mounting plate 36. As shown in FIG. 1, the entire hopper 39 is widely formed so as to cross the entire weighing substrate 45 ', and the inside of the upper end of the hopper 39 is also wide. A lower end discharge port 2X of the hopper 2 is inserted.
[0027]
FIG. 6 is a view of a portion of the mounting base 20 provided with the angle adjusting means and the weighing mass 45T constituting the present invention as viewed from the back side (right side in FIG. 3), and FIG. 7 is a similar view of the mounting base 20 from the plane. In these drawings and FIG. 3, reference numeral 22 designates a root end portion that can be pivoted back and forth to a bearing portion 23 </ b> K provided on one side upper surface of the substrate frame 1 </ b> E using a mounting shaft 23 (FIG. 3). It is a screw shaft attached so as to be rotatable in the left-right direction. The upper end side of the screw shaft 22 is inserted through a long hole 24 </ b> B formed in the upper surface plate 24 </ b> A of the support plate 24 having a substantially L-shaped cross section provided at the root end portion of the mounting base 20. Projecting upward.
[0028]
25A and 25B are positioning nuts mounted on the screw shaft 22 so as to sandwich the bottom surface and the top surface of the top plate 24A, and the mounting position of the mounting base 20 is moved up and down by adjusting the screwing of these nuts 25A and 25B. Then, the inclination angle θ of the mounting base 20 with respect to the horizontal substrate frame 1E (see FIGS. 4 and 5), that is, the inclination state with the measurement substrate 45 ′ provided with the measurement mass 45T facing downward in front view ( It has a mechanism that allows the front / rear slide angle to be adjusted arbitrarily according to the properties of the packaging material.
[0029]
Reference numeral 28 denotes a connecting shaft operating shaft, the tip end side of which is connected to the left and right slide plates 40 or the root end portions of the measurement substrate 45 ′ using the shaft 40 </ b> A, and the root end side is connected to the eccentric rotating plate 27. . The eccentric rotating plate 27 is provided on the rotating shaft 26 attached to bearings 26A and 26B provided on the root end side of the mounting base 20. 26C is an interlocking sprocket or pulley attached to the rotating shaft 26, 29B is a driving sprocket or pulley attached to the driving rotating shaft 29A of the motor 29 shown in FIG. 3, and 29C is spanned between these two sprockets or pulleys. When the eccentric rotating plate 27 is rotated by these transmission means by the chain or belt, the measuring substrate 45 ′ attached to the slide plate 40 is provided on the tip side where the measuring handle 42 is provided according to the inclination of the mounting base 20. Slide back and forth in a tilted state with the facing down.
[0030]
3 to 5, reference numeral 33 denotes a shutter provided along the bottom surface of the weighing substrate 45 ′. The shutter 33 attached to the main body 30 is connected to the weighing substrate 45 ′ as shown in FIGS. 3 and 4. Slides forward (to the left in the drawing), and each weighing mass 45T is positioned directly above each chute 3H, the bottom surface of the weighing mass 45T is opened to allow the packaging material to fall onto the chute 3H. However, as shown in FIG. 5, when the weighing substrate 45 'slides backward (to the right in the drawing), the bottom surface of the weighing mass 45T is closed to prevent the packaging material from falling.
[0031]
Reference numeral 44 denotes a vibration generating device such as an air vibration which applies vibration to the weighing substrate 45 'to prevent the material to be packaged from adhering to the measuring mass 45T and its peripheral portion. The vibration generating device 44 includes the motor The drive rotating shaft 29A of 29 may be provided with an arm or the like for striking the weighing substrate 45 ′ or its peripheral portion, and the material to be packaged may be removed by vibration caused by the striking.
[0032]
Reference numeral 47 denotes a suction hood that exerts a suction action of the dust collector 46 toward the lower side of each of the weighing masses 45T and the weighing substrate 45 '. The material to be packaged that overflows from the weighing mass 45T to the outside of the chute 3H The hood can suck and prevent the material to be wrapped from scattering.
[0033]
Next, the operation of the present invention will be described.
3 and 4, the weighing substrate 45 ′ is slid to the leftmost side by the eccentric rotating plate 27, the bottom surface of each weighing mass 45 T is opened, and the packaging material quantified by the weighing mass 45 T is on the lower side. The state where it was dropped into the chute 3H is shown.
[0034]
From the charging port 39T of the charging hopper 39, the packaging material is always supplied toward the weighing substrate 45 'between the front and rear scrapers 37, 38. Accordingly, when the weighing substrate 45 ′ is slid back to the right in the drawing in the state shown in FIG. 5 by the rotation of the eccentric rotating plate 27, the bottom surface of the weighing mass 45T is blocked by the shutter 33. Packing material is filled.
[0035]
At this time, since the rear scraper 38 receives the packaging material that moves to the right in the drawing according to the slide of the weighing substrate 45 ′ and exerts the action of pushing the packaging material into each weighing mass 45 T, the packaging material is It is surely filled without gaps. Further, from this filling state, the weighing substrate 45 ′ again performs the forward slide in the left direction shown in FIGS. 3 and 4, and thereafter, the above-described reciprocating slide is continuously repeated. At the time of sliding, in order to quantify the surplus packaging material accumulated on the measuring mass 45T by the front scraper 37, a predetermined amount of the packaging material is dropped into the chute 3H and always decided. Enables the amount of packaged material to be sealed.
[0036]
In the present invention, the entire weighing substrate 45 ′ is in an inclined state with the tip side down, that is, as shown in FIGS. Therefore, the excessively wrapped material is always moved in the forward direction, that is, in the direction of the front scraper 37 by this inclined state , and overflow from the rear scraper 38 side is prevented. Further, the front scraper 37 is in the vicinity of the weighing mass 45T, and the surplus material to be wrapped that has moved to the front scraper 37 side sequentially falls into the weighing mass 45T to reduce the accumulation amount. Can be averaged between the front and rear scrapers 37, 38.
[0037]
Further, according to the present invention, the vibration generating device 44 vibrates the weighing substrate 45 ′, so that the material to be packaged can be prevented from adhering to the weighing substrate 45 ′ and the weighing mass 45T. The packaging material can be sucked by the suction hood 47 and prevented from being scattered or dropped into the automatic packaging machine.
[0038]
Further, in the present invention, since the inclination angle θ of the measurement substrate 45 ′ can be arbitrarily adjusted within a range of 2 ° to 7 °, for example, the inclination angle θ can be set in accordance with the properties of the packaging material. By the way, if the material to be packaged is somewhat viscous, such as powdered milk, the inclination angle θ is set large, and conversely, if it is in a smooth state, such as granulated sugar, the inclination angle By setting θ small, accurate quantitative supply is possible.
[0039]
【The invention's effect】
As described above, according to the packaging material measuring and supplying apparatus for an automatic packaging machine according to the present invention, the amount of surplus material after scraping is averaged between the front and rear scrapers. Prevents the problem of unloading and soiling the lower automatic wrapping machine and its surroundings with overflowing material to be packed, or overflowing material to bite into the seal part and causing a sealing failure The point that prevents the adherence of the packaging material by applying vibration to the weighing mass, the point that the spilled packaging material is sucked by the suction hood, and the inclination angle of the weighing mass are matched to the properties of the packaging material. Combined with the ability to be adjusted, it has the advantage of being able to accurately supply a defined amount of packaging material in a clean and hygienic environment at all times.
[Brief description of the drawings]
FIG. 1 is a front view showing an example of an automatic packaging machine in which a metering device according to the present invention is implemented.
FIG. 2 is a perspective view showing a slitter and a supply pipe in the automatic packaging machine shown in FIG.
FIG. 3 is a side view illustrating an entire packaging material metering and supplying apparatus for an automatic packaging machine according to the present invention.
FIG. 4 is an enlarged side view showing a main part of a packaging material measuring and supplying apparatus for an automatic packaging machine according to the present invention.
FIG. 5 is an enlarged side view of the main part in a state where the measuring mass is similarly slid.
FIG. 6 is a rear view showing a main part of the present invention.
FIG. 7 is a plan view showing the main part of the present invention.
FIG. 8 is a configuration diagram illustrating a configuration of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vertical multi-row automatic filling and packaging machine 1E Substrate frame 1F Main body frame 2 Hopper 2A Weighing supply device 3 Supply pipe 3H Chute 20 Mounting base 24A, 24B Positioning nut 27 Eccentric rotating plate 28 Connection shaft 33 Shutter 37, 38 Front and rear scraper 39T Hopper slot 44 Vibration generator 45 'Weighing board 45 Weighing board 45T Weighing mass 47 Food for drinking

Claims (3)

The material to be packaged is put into the weighing mass from the hopper, and the front and rear scrapers provided before and after the hopper loading opening are quantified by sliding the weighing mass back and forth with respect to the hopper. A packaging material metering device for an automatic packaging machine configured to be automatically packaged by dropping into a lower chute,
A packaging material metering and supplying device for an automatic packaging machine, wherein the weighing mass is configured to slide in an inclined state with the front side in front as viewed from the horizontal plane. A mounting base on which a weighing board provided with a weighing mass is slidably mounted back and forth is pivotally attached to a horizontal board frame in an inclined state with the front side facing down, and on the base end side of this mounting base 2. An automatic wrapping machine package according to claim 1, further comprising angle adjusting means configured to move the root end side up and down to arbitrarily adjust the inclination angle of the mount with respect to the substrate frame. Material metering device.   A screw shaft, wherein the angle adjusting means is erected on the substrate frame, and the root end of the mounting base is movably inserted vertically; and a positioning nut that is screwably attached to the screw shaft; It is comprised by these, The packaging material measurement supply apparatus for automatic packaging machines of Claim 2 characterized by the above-mentioned.

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