CN201494664U

CN201494664U - Counting and weighting device of bag-in-bag automatic packaging machine

Info

Publication number: CN201494664U
Application number: CN200920134499XU
Authority: CN
Inventors: 林孝亮; 林汉城
Original assignee: SHANTOU OCEANIA POINT PACKAGING MACHINERY CO Ltd
Current assignee: SHANTOU OCEANIA POINT PACKAGING MACHINERY CO Ltd
Priority date: 2009-07-29
Filing date: 2009-07-29
Publication date: 2010-06-02
Anticipated expiration: 2019-07-29

Abstract

The utility model discloses a counting and weighing device of a bag-in-bag automatic packaging machine. A first movable guide plate capable of swinging is arranged under a weighing hopper and connected with a first cylinder; a quality product collecting mechanism is arranged under one end of the first movable guide plate, and a small bag recovering mechanism is arranged under the other end of the first movable guide plate; a CPU (central processing unit) is further provided and connected with a control circuit of the first cylinder and a weighing sensor respectively; the weighing hopper is provided with an outlet opening and closing mechanism driven by a second cylinder, and the CPU is connected with a control circuit of the second cylinder; a storing hopper is arranged above the weighing hopper and provided with an opening and closing switch mechanism driven by a third cylinder; and a small bag delivery mechanism is arranged above the storing hopper and equipped with a counting electric eye. The utility model can automatically count and weight small bags in every batch, and shunt according to weighing results, thereby not only saving labor, but also improving work efficiency, and further improving the speed of the whole production line.

Description

The counting weighting apparatus of bag automatic packaging unit in the bag

Technical field

The utility model belongs to the technical field of package packing machine, relates in particular to the counting weighting apparatus of bag automatic packaging unit in a kind of bag.

Background technology

Bag automatic packaging unit is used for materials such as soymilk, oatmeal, the cake pouch of packing in the bag, and a plurality of pouches encapsulation are entered in the sack.Before the pouch of each batch is packed a sack into, must accurately control the bag number of pouch, and the total weight of each pouch of the sack of packing into weighed, if the total weight error of each pouch material within allowed band, pouch that then will this batch is sent into subsequent processing and is packed; Otherwise if the total weight error of each pouch material surpasses allowed band, pouch that then must this batch is sent recovery back to.

In the prior art, aforesaid operations mainly uses the hopper that has LOAD CELLS to claim to finish by the workman: sort out the pouch of setting number by the workman earlier, being placed on hopper then deserves to be called and weighs, claim to show the result by hopper, if weighing results is qualified, then the whole hopper tray that claims of hopper is tumbled automatically, and the pouch of this batch is poured out hopper tray, then sends into subsequent processing and packs; Otherwise, if the pouch weighing results nonconformity of this batch, then must by the workman will this batch each pouch take recovery away from the hopper of weighing.

Existing above-mentioned mode of operation has the following disadvantages: 1, degree of automation is low, labor intensive, and inefficiency, and influence the speed of whole production line; 2, because the hopper tray that claims of hopper must be pressed in the LOAD CELLS top, so hopper tray can not resemble and in the bottom folding brake mechanism is set the common hopper, and promptly the hopper tray bottom can not be opened; Order about the mode that each pouch leaves hopper tray and also can only adopt the mode of tumbling, and can only tumble to a direction, the rotational angle of the action of tumbling must reach more than 50 °, is blocked and can not pour out smoothly by the sidewall of hopper tray otherwise have indivedual pouches.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned shortcoming and the counting weighting apparatus of bag automatic packaging unit in a kind of bag is provided, and it can be counted, weigh the pouch of each batch automatically, and shunts according to weighing results.

Its purpose can realize by following scheme: the counting weighting apparatus of bag automatic packaging unit comprises frame in this bag, LOAD CELLS is installed and the hopper of weighing on the frame, the hopper of weighing is connected on the LOAD CELLS, its principal feature is, be provided with the first movable guide plate that can swing below the hopper of weighing, the first movable guide plate is connected with first cylinder that drives its swing; Be provided with the certified products collecting mechanism below an end of the first movable guide plate, the other end below of the first movable guide plate is provided with the pouch recovering mechanism; Also be provided with central process unit, central process unit connects the control circuit and the LOAD CELLS of first cylinder respectively, and central process unit is controlled the action of first cylinder according to the weighing results of LOAD CELLS; The hopper of weighing is provided with the discharging opening open-and-close mechanism by second air cylinder driven, and central process unit connects the control circuit of second cylinder; The weigh top of hopper is provided with the storing hopper, and the storing hopper is provided with the folding brake mechanism by the 3rd air cylinder driven; Be provided with the pouch connecting gear above the storing hopper, the pouch connecting gear is equipped with the counting electric eye; Described central process unit is provided with counting unit, the counting unit connection count electric eye of central process unit; Counting unit is calculated from the quantity of the pouch of counting electric eye front process in the 3rd cylinder feed motion generation each time back of storing hopper; Central process unit is according to the 3rd cylinder action of the mode of operation control storing hopper of the count results of counting unit and second cylinder.

Be preferably, the hopper of weighing comprises fixed position and the rotatable position that matches each other, the hopper fixed position of wherein weighing comprises the left side wall that is connected as a single entity, the left-half of front side wall, the left-half of rear wall, the rotatable position of the hopper of weighing comprises the right side wall that is connected as a single entity, the right half part of front side wall, the right half part of rear wall, the rotatable position of the hopper of weighing is provided with the horizontal rotating shaft that extends along fore-and-aft direction, the rotatable position of the whole hopper of weighing is suspended on the horizontal rotating shaft, the two ends of horizontal rotating shaft are bearing in the left-half of front side wall respectively, the left-half of rear wall, and the center of gravity at the rotatable position of hopper of weighing is positioned at the lower right of horizontal rotating shaft; The hypomere of right side wall and the hypomere of left side wall form vee shape under the clamping state; The rotatable position of the hopper of weighing is by described second air cylinder driven.In the present specification, be " left " with LOAD CELLS with respect to the orientation at the hopper place of weighing, the level vertical with left and right directions is to being exactly " fore-and-aft direction ".

Be more preferably, the left side wall of the hopper of weighing is fixedly connected on LOAD CELLS.The whole hopper of weighing all is carried on the LOAD CELLS.

Right side wall hypomere fixed outside at the hopper of weighing is connected with projection; The discharging opening open-and-close mechanism of the described hopper of weighing comprises rack-mounted lever, and the piston rod of the drive end of lever and described second cylinder is hinged, and the driven end of leverage is positioned at below the projection.

The pouch connecting gear also is provided with the second movable guide plate that can swing, and the second movable guide plate is connected with the four-cylinder that drives its swing; A wherein end of the second movable guide plate is positioned at storing hopper top, and the other end of the second movable guide plate is positioned at pouch recovering mechanism top; Described counting electric eye is arranged between the storing hopper and the second movable guide plate; Central process unit also connects the control circuit of four-cylinder, and central process unit is controlled the action of four-cylinder according to the mode of operation of the count results of counting unit and the 3rd cylinder.

The utlity model has following advantage and effect:

1, the utility model can be counted automatically to the pouch that enters the storing hopper, when the pouch that enters the storing hopper reaches setting numerical value (being the quantity of pouch in each sack), if the pouch in the weighing bucket empties, then central process unit is controlled the action of the 3rd cylinder, the folding brake mechanism of storing hopper is opened, so the pouch of this batch drops in the hopper of weighing; After this, weighing sensor is always weighed to the pouch of this batch; After weighing bucket is always weighed to a plurality of pouches, the discharging opening open-and-close mechanism of weighing bucket is opened, make pouch leave under the hopper, central process unit is according to weighing results signal control first cylinder action of LOAD CELLS simultaneously, if weighing results meets the requirements, then first cylinder makes the first movable guide plate rotate to the direction of certified products collecting mechanism, if instead weighing results is undesirable, then tilts to the pouch recovering mechanism.So, behind the pouch process counting, up-to-standard batch of automatic stream certified products of total weight collecting mechanism, batch automatic stream pouch recovering mechanism of off gauge.

2, when the pouch that enters the storing hopper reaches setting quantity (being the quantity of pouch in each sack), if the pouch in the weighing bucket does not empty (promptly second cylinder discharging opening open-and-close mechanism that do not drive weighing bucket is as yet opened) as yet, under this state, pouch from the place ahead still can be transported to the pouch connecting gear continuously, then central process unit is controlled the four-cylinder action, make the second movable guide plate swing of pouch connecting gear, make pouch automatic stream pouch recovering mechanism, avoid continuing to be stacked in the storing hopper, the pouch quantity that guarantees to enter each batch in the storing hopper can excess.

3, owing to realize the automation shunting, not only saving is artificial, and increases work efficiency, thereby improves the speed of production of whole production line.

4,, avoided tumble pouch in the mode of tradition may be subjected to the problem of bucket wall retardance because weighing bucket bottom can be opened, so during the utility model work, each pouch falls smooth and easy.

5, second cylinder and leverage are installed on the frame, and need not be carried on the LOAD CELLS, and when LOAD CELLS is weighed, the end of leverage can not contact the hopper side wall of weighing (also temporarily breaking away from the sidewall projection certainly), thereby LOAD CELLS is when weighing, leverage and cylinder can not apply any application force to LOAD CELLS, can not influence the accuracy rate of weighing results.

Description of drawings

Fig. 1 is the structure and the working state schematic representation of a kind of specific embodiment of the utility model.

Fig. 2 is that the first movable guide plate in embodiment illustrated in fig. 1 reclaims guide plate to pouch and rotates the bevelled view.

Fig. 3 is the discharging opening open-and-close mechanism of the hopper of weighing in embodiment illustrated in fig. 1 view of (during closure state) when being in the normal state.

Fig. 4 is the scheme drawing of the discharging opening open-and-close mechanism of the hopper of weighing in embodiment illustrated in fig. 1 when being in open mode.

Fig. 5 is the vertical cross section structural representation of hopper of weighing in embodiment illustrated in fig. 3.

Fig. 6 is an A-A cross-sectional view among Fig. 5.

Fig. 7 is that the second movable guide plate in embodiment illustrated in fig. 1 reclaims load-transfer device to pouch and rotates the bevelled view.

The specific embodiment

The counting weighting apparatus of bag automatic packaging unit comprises frame 1 in Fig. 1, the bag shown in Figure 2, and frame 1 is equipped with the LOAD CELLS 2 and the hopper of weighing, and the hopper of weighing is connected on the LOAD CELLS; Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, the hopper of weighing comprises fixed position 31 and the rotatable position 32 that matches each other, the hopper fixed position of wherein weighing comprises left side wall 33, the left-half 341 of front side wall, the left-half 351 of rear wall, left side wall 33, the left-half 341 of front side wall, the left-half 351 of rear wall is connected as a single entity, the rotatable position of the hopper of weighing comprises right side wall 36, the right half part 342 of front side wall, the right half part 352 of rear wall, right side wall 36, the right half part 342 of front side wall, the right half part 352 of rear wall is connected as a single entity, the rotatable position 32 of the hopper of weighing is provided with the horizontal rotating shaft 37 that extends along fore-and-aft direction, the rotatable position 32 of the whole hopper of weighing is suspended on the horizontal rotating shaft 37, the two ends of horizontal rotating shaft 37 are bearing in the left-half 341 of front side wall respectively, the left-half 351 of rear wall, and the center of gravity G at the rotatable position 32 of hopper of weighing is positioned at the lower right of horizontal rotating shaft 37; The hypomere of the hypomere of right side wall 36 and left side wall 33 forms vee shape under the clamping state; The left side wall 33 of hopper of weighing is fixedly connected on LOAD CELLS 2, the left-half 351 of the left-half 341 of hopper front side wall, rear wall is connected as a single entity with left side wall 33 owing to weigh, and the rotatable position rotating shaft of the hopper of weighing is supported on the left-half of front side wall, the left-half of rear wall, therefore the whole hopper of weighing is carried on the LOAD CELLS.Hypomere fixed outside at the right side wall of hopper is connected with flange 39; The hopper of weighing is provided with the discharging opening open-and-close mechanism that is driven by second cylinder 38, this discharging opening open-and-close mechanism comprises rack-mounted lever, the drive end 391 of leverage and the piston rod of second cylinder 38 are hinged, the driven end 392 of leverage be positioned at below the flange 39 and with flange 39 running-fits.

Fig. 1, shown in Figure 2 is provided with first movable guide plate 4, the first movable guide plates 4 that can swing and is provided with first cylinder 41 that horizontal rotating shaft 42, the first movable guide plates are connected with its swing of driving below the hopper of weighing; The other end below that is provided with certified products bunker for collecting 5, the first movable guide plates below an end of the first movable guide plate is provided with pouch and reclaims guide plate 51, and pouch reclaims guide plate 51 belows and is provided with pouch recovery load-transfer device 52; The weigh top of hopper is provided with storing hopper 6, the right side wall 61 of storing hopper and left side wall 62 lower ends form vee shape at closure state, the right side wall top of storing hopper is provided with horizontal rotating shaft 63, right side wall 61 bottoms of storing hopper 6 can drive and make right side wall 61 around horizontal rotating shaft 63 rotations by the 3rd cylinder 64, and said mechanism has formed the folding brake mechanism of storing hopper by the 3rd air cylinder driven.Be provided with pouch connecting gear 7 above storing hopper 6, pouch connecting gear 7 is equipped with counting electric eye 71; The pouch connecting gear also is provided with second movable guide plate 72, the second movable guide plates 72 that can swing and is connected with the four-cylinder 73 that drives its swing; A wherein end of the second movable guide plate 72 is positioned at storing hopper 6 tops, and the other end of the second movable guide plate 72 is positioned at pouch and reclaims load-transfer device 52 tops; Described counting electric eye 71 is arranged between the storing hopper 6 and the second movable guide plate 72.

This counting weighting apparatus also is provided with central process unit, and central process unit connects the control circuit and the LOAD CELLS of first cylinder 41 respectively, and central process unit is controlled the action of first cylinder according to the weighing results of LOAD CELLS; Central process unit also connects the control circuit of second cylinder 38 and the control circuit of the 3rd cylinder 64.Be provided with counting unit in the central process unit, the counting unit connection count electric eye 71 of central process unit; Counting unit is calculated from the quantity of the pouch of counting electric eye 71 front processes in the 3rd cylinder 64 feed motion generation each time back of storing hopper; Central process unit is according to the action of the 3rd cylinder 64 of the mode of operation control storing hopper of the count results of counting unit and second cylinder.Central process unit also connects the control circuit of four-cylinder, and central process unit is controlled the action of four-cylinder according to the mode of operation of the count results of counting unit and the 3rd cylinder.

The working process and the principle of the foregoing description are as follows:

Pouch is constantly sent by pouch connecting gear 7, and falls in the storing hopper 6 behind encapsulation material on the manufacturing line, and when each pouch process counting electric eye 71 next door, counting unit is counted in the way; When count results reaches when setting numerical value (i.e. the pouch quantity of packing in sack), central process unit judges whether the inferior material of last consignment of in the hopper of weighing empties, and judge whether the hopper of weighing is in closure state (operating state according to second cylinder is judged), the inferior material of last consignment of if weigh in the hopper empties, and the hopper of weighing is in closure state, then central process unit makes 64 actions of the 3rd cylinder, the right side wall 61 that drives the storing hopper rotates counterclockwise, so storing hopper 6 is opened, drop in the hopper of weighing under one batch pouch is whole.After pouch dropped to the hopper of weighing, central process unit was controlled the 3rd cylinder counteragent, and the right side wall 61 that drives the storing hopper clockwise rotates, make again the storing hopper folding brake mechanism closure, counting unit is restarted counting.

Fig. 3, Fig. 5, shown in Figure 6, when the hopper of weighing is in the normal state, the driven end 392 of leverage is positioned at below the flange 39 and with flange and breaks away from, both do not contact, this moment is because the center of gravity G at the rotatable position 32 of hopper of weighing is positioned at the lower right of horizontal rotating shaft 37, the gravity at the rotatable position of the hopper of therefore weighing 32 self can produce clws moment, the rotatable position 32 of the hopper of weighing is kept and fixed position 31 clampings, the hypomere of the hypomere of right side wall 36 and left side wall 33 forms vee shape under the clamping state, so the normality of the hopper of weighing is closure state.Under closure state, under one batch pouch is whole, drop in the hopper of weighing, central process unit makes LOAD CELLS begin to weigh, weigh obtain a result after, central process unit is controlled 38 actions of second cylinder, the piston rod of second cylinder 38 is moved downward, activation lever clockwise rotates, driven end 392 upward movements of linkage, and promote flange 39 around horizontal rotating shaft 37 rotations, so the rotatable position 32 of the hopper of weighing rotates counterclockwise around horizontal rotating shaft 37, the discharging opening open-and-close mechanism of the hopper of weighing is opened, as shown in Figure 4, each pouch drops out the hopper of weighing; After this, central process unit is controlled second cylinder, 38 counteragents, make the piston rod upward movement of second cylinder 38, activation lever rotates counterclockwise, the driven end 392 of leverage moves downward, the driven end 392 of leverage is broken away from flange 39, and the rotatable position 32 of the hopper of weighing clockwise rotates around horizontal rotating shaft 37 under the self gravitation effect, and the hopper of weighing returns to closed normality.

After LOAD CELLS is weighed, if weighing results meets the requirements, then central process unit is controlled the action of first cylinder, the first movable guide plate 4 is tilted to the direction of certified products collecting mechanism, as shown in Figure 1, one batch the pouch that drops from the hopper of weighing all drops to the certified products bunker for collecting 5 down, finishes the work of weighing of counting, and after this pouch of this batch continues to be sent to subsequent processing and packs; If instead weighing results is undesirable, then central process unit is controlled the first cylinder counteragent, making the first movable guide plate 4 reclaim guide plate 51 to pouch tilts, as shown in Figure 2, one batch the pouch that drops from the hopper of weighing all drops to pouch recovery guide plate 51 down, and continue to be slipped to pouch and reclaim load-transfer device 52, reclaiming load-transfer device 52 by pouch and send recovery back to, each pouch is recovered to manufacturing line the place ahead and reconfigures.

Shown in Figure 7, in the above-mentioned working process, pouch from the place ahead can be transported to pouch connecting gear 7 continuously, if entering the pouch of storing hopper reaches when setting quantity (being the quantity of pouch in each sack), pouch in the weighing bucket does not empty as yet that (promptly second cylinder discharging opening open-and-close mechanism that do not drive weighing bucket is as yet opened, central process unit is not controlled the reason that weighing bucket opens to be had multiple, for example certain operation at rear is blocked), under this state, then central process unit is controlled four-cylinder 73 actions, the second movable guide plate counter-clockwise swing that makes the pouch connecting gear is to state shown in Figure 7, guiding pouch automatic stream pouch reclaims load-transfer device 52, avoid continuing to be stacked in the storing hopper 6, the pouch quantity that guarantees to enter each batch in the storing hopper 6 can excess.

Claims

1. the counting weighting apparatus of bag automatic packaging unit in the bag, comprise frame, LOAD CELLS is installed and the hopper of weighing on the frame, the hopper of weighing is connected on the LOAD CELLS, it is characterized in that: be provided with the first movable guide plate that can swing below the hopper of weighing, the first movable guide plate is connected with first cylinder that drives its swing; Be provided with the certified products collecting mechanism below an end of the first movable guide plate, the other end below of the first movable guide plate is provided with the pouch recovering mechanism; Also be provided with central process unit, central process unit connects the control circuit and the LOAD CELLS of first cylinder respectively, and central process unit is controlled the action of first cylinder according to the weighing results of LOAD CELLS; The hopper of weighing is provided with the discharging opening open-and-close mechanism by second air cylinder driven, and central process unit connects the control circuit of second cylinder; The weigh top of hopper is provided with the storing hopper, and the storing hopper is provided with the folding brake mechanism by the 3rd air cylinder driven; Be provided with the pouch connecting gear above the storing hopper, the pouch connecting gear is equipped with the counting electric eye; Described central process unit is provided with counting unit, the counting unit connection count electric eye of central process unit; Counting unit is calculated from the pouch quantity of counting electric eye front process in the 3rd cylinder feed motion generation each time back of storing hopper; Central process unit is controlled the action of the 3rd cylinder according to the mode of operation of the count results of counting unit and second cylinder.

2. the counting weighting apparatus of bag automatic packaging unit in the bag according to claim 1, it is characterized in that: the hopper of weighing comprises fixed position and the rotatable position that matches each other, the fixed position of hopper of wherein weighing comprises the left side wall that is connected as a single entity, the left-half of front side wall, the left-half of rear wall, the weigh rotatable position of hopper comprises the right side wall that is connected as a single entity, the right half part of front side wall, the right half part of rear wall, the rotatable position of the hopper of weighing is provided with the horizontal rotating shaft that extends along fore-and-aft direction, the rotatable position of the whole hopper of weighing is suspended on this horizontal rotating shaft, the two ends of this horizontal rotating shaft are bearing in the left-half of front side wall respectively, the left-half of rear wall, and the center of gravity at the rotatable position of hopper of weighing is positioned at the lower right of horizontal rotating shaft; The hypomere of right side wall and the hypomere of left side wall form vee shape under the clamping state; The rotatable position of the hopper of weighing is by described second air cylinder driven.

3. the counting weighting apparatus of bag automatic packaging unit in the bag according to claim 2, it is characterized in that: the left side wall of the hopper of weighing is fixedly connected on LOAD CELLS.

4. the counting weighting apparatus of bag automatic packaging unit in the bag according to claim 2, it is characterized in that: the right side wall hypomere fixed outside at the hopper of weighing is connected with projection; The discharging opening open-and-close mechanism of the described hopper of weighing comprises rack-mounted lever, and the piston rod of the drive end of lever and described second cylinder is hinged, and the driven end of leverage is positioned at below the projection.

5. the counting weighting apparatus of bag automatic packaging unit in the bag according to claim 3, it is characterized in that: the right side wall hypomere fixed outside at the hopper of weighing is connected with projection; The discharging opening open-and-close mechanism of the described hopper of weighing comprises lever, and the piston rod of the drive end of lever and described second cylinder is hinged, and the driven end of leverage is positioned at below the projection.

6. according to the counting weighting apparatus of bag automatic packaging unit in any one described bag of claim 1 to 5, it is characterized in that: described pouch connecting gear also is provided with the second movable guide plate that can swing, and the second movable guide plate is connected with the four-cylinder that drives its swing; A wherein end of the second movable guide plate is positioned at storing hopper top, and the other end of the second movable guide plate is positioned at pouch recovering mechanism top; Described counting electric eye is installed between the storing hopper and the second movable guide plate; Central process unit also connects the control circuit of four-cylinder, and central process unit is controlled the action of four-cylinder according to the mode of operation of the count results of counting unit and the 3rd cylinder.