Bag aligning machine for packaging bags

Abstract

The utility model discloses a bag aligning machine for packaging bags, which is characterized in that a mounting base is arranged on a rack, a bag clamping and conveying mechanism is mounted on the mounting base, the bag clamping and conveying mechanism comprises a first deflection seat and a second deflection seat which are mounted on the mounting base in a deflection manner, and the first deflection seat and the second deflection seat are respectively provided with a first conveying frame and a second conveying frame; a first bag clamping mechanism and a second bag clamping mechanism are mounted on the mounting base, the first bag clamping mechanism comprises a first bag clamping bottom plate, the first bag clamping bottom plate is mounted on the mounting base through a position adjusting structure, a first bag clamping lifting seat is mounted on the first bag clamping bottom plate, and a first clamping jaw mounting plate is mounted on the first bag clamping lifting seat; according to the bag aligning machine, the upper bag opening can be aligned before edge folding of the upper bag opening of the packaging bag, it is guaranteed that the bag openings of the packaging bag are located at the same position every time edge folding is conducted, and the edge folding quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of bagging machines of packing bag in powder packing technology field, and particularly to a kind of bagging machines of packing bag. BACKGROUND

[0002] In powder packing technology, powder is filled into bag by packing machine and then conveyed to heat bonding machine by conveying belt for heat bonding, and heat bonding is mainly to seal the upper opening of packing bag. The upper seal of packing bag after heat bonding needs to be folded on edge folding machine, and since the sealed packing bag may be inclined during conveying, the folding cannot be accurate every time if the bag opening is inclined when folding on edge folding and sewing machine. Moreover, since the inclination angle of bag opening of packing bag is different every time, the height of bag opening is also different, and if folding directly, the state after folding every time is different, so that subsequent sewing action is inconsistent. SUMMARY

[0003] The utility model solves the technical problem that a kind of bagging machines of packing bag can carry out the flat processing of upper bag opening before the folding of upper bag opening of packing bag, ensure that the bag opening of packing bag is in the same position every time when folding, and guarantee the quality of folding.

[0004] To solve the above technical problem, the technical scheme of the utility model is as follows: a kind of bagging machines of packing bag, comprising a rack, the rack is provided with a mounting seat, the mounting seat is installed with bag clamping and conveying mechanism for clamping the bag opening of packing bag, the rack is provided with conveying roller line for supporting and transporting the packing bag downstream of bag clamping and conveying mechanism, the bag clamping and conveying mechanism includes first and second deflection seats installed on the mounting seat, the first and second deflection seats are respectively provided with first and second conveying frames, the first and second conveying frames are respectively provided with first and second conveying pulley groups, the first and second conveying pulley groups are respectively provided with first and second conveying belts, the first driving pulley of first conveying pulley group and the second driving pulley of second conveying pulley group are respectively connected with rotary power device through rotary transmission mechanism, the first and second deflection seats are driven by deflection power device.

[0005] The installation base is provided with a first bag clamping mechanism and a second bag clamping mechanism, which are identical in structure and located above the first conveying belt wheel set and the second conveying belt wheel set, the first bag clamping mechanism comprises a first bag clamping bottom plate installed on the installation base, the first bag clamping bottom plate is installed on the installation base through a position adjusting structure, a first bag clamping lifting seat is vertically and slidingly installed on the first bag clamping bottom plate, a first clamping jaw installation plate is installed on the first bag clamping lifting seat, a first clamping jaw driven by a first opening and closing power device is installed on the first clamping jaw installation plate, a rubber pad is detachably installed at the end of the first clamping jaw, and a first lifting power device for driving the first bag clamping lifting seat to lift is arranged between the first bag clamping bottom plate and the first bag clamping lifting seat.

[0006] As a preferred scheme, the first clamping jaw comprises a first clamping jaw monomer and a second clamping jaw monomer, the upper end of the first clamping jaw monomer is hingedly connected to the first clamping jaw installation plate through a first hinge shaft, the middle part of the second clamping jaw monomer is hingedly connected to the first clamping jaw installation plate through a second hinge shaft, the first opening and closing power device is a first opening and closing cylinder, one end of the first opening and closing cylinder is hingedly connected to the first clamping jaw installation plate, the other end of the first opening and closing cylinder is hingedly connected to the upper end of the second clamping jaw monomer, a first synchronous hinge shaft is arranged on one side of the first clamping jaw monomer, a second synchronous hinge shaft is arranged on one side of the second clamping jaw monomer, a synchronous opening and closing connecting rod is arranged between the first synchronous hinge shaft and the second synchronous hinge shaft, the first synchronous hinge shaft and the second synchronous hinge shaft are located between the first hinge shaft and the second hinge shaft, the first synchronous hinge shaft is located below the line connecting the first hinge shaft and the second hinge shaft, and the second synchronous hinge shaft is located above the line connecting the first hinge shaft and the second hinge shaft.

[0007] As a preferred scheme, the position adjusting structure comprises a first vertical slot and a first adjusting bolt, the first vertical slot is arranged on the first bag clamping bottom plate, a first horizontal slot is further arranged on the installation base, the first adjusting bolt is constrained in the first vertical slot and fixes the first bag clamping bottom plate and the installation base through a nut, and the first adjusting bolt is also simultaneously constrained in the first horizontal slot.

[0008] As a preferred scheme, the installation base is slidingly installed on the rack, a lead screw nut mechanism for adjusting the height of the installation base is arranged on the rack and the installation base, and an adjusting hand wheel is arranged on the lead screw of the lead screw nut mechanism.

[0009] As a preferred scheme, the first and second swing seats are identical in structure, the first swing seat comprises two swing rods and a first horizontal connecting beam, upper ends of the swing rods are hinged to the mounting seat, two ends of the first horizontal connecting beam are connected to lower ends of the two swing rods, the first and second conveying frames are identical in structure, the first conveying frame comprises a conveying beam fixed to the first horizontal connecting beam, the first conveying pulley set comprises the first driving pulley and the first driven pulley and a plurality of intermediate conveying pulleys between the first driving pulley and the first driven pulley, the intermediate conveying pulleys are rotatably installed on the conveying beam, the first driving pulley and the first driven pulley are rotatably installed on the first driving frame and the first driven frame respectively, the first driving frame and the first driven frame are fixed to the first horizontal connecting beam and located at two ends of the conveying beam, and the first conveying belt is installed between the first driving pulley and the first driven pulley.

[0010] As a preferred scheme, the rotary power device is a rotary motor, the rotary motor is fixed to the mounting seat, the rotary transmission mechanism comprises a driving gear and a driven gear which are rotatably installed on the mounting seat and are mutually clamped, the driving gear is fixed to an output shaft of the rotary motor, a gear shaft of the driving gear and a wheel shaft of the first driving pulley are connected through a universal joint transmission shaft, and a gear shaft of the driven gear and a wheel shaft of the second driving pulley are also connected through a universal joint transmission shaft.

[0011] As a preferred scheme, the first and second swing seats are further provided with a constraint structure for constraining a bag opening of a packaging bag.

[0012] As a preferred scheme, the constraint structure comprises a first constraint plate fixed to the first horizontal connecting beam and a second constraint plate fixed to the second horizontal connecting beam of the second swing seat, and the first and second constraint plates are matched to constrain the bag opening of the packaging bag.

[0013] As a preferred scheme, the first and second constraint plates are identical in mounting mode, a connecting plate is arranged on a side surface of the first constraint plate, a strip-shaped hole is arranged on the connecting plate, a connecting bolt is constrained in the strip-shaped hole, and the connecting plate is fixed to the first horizontal connecting beam through the connecting bolt.

[0014] As a preferred scheme, the mounting seat is further provided with a position detection sensor for detecting a position of a bag opening of a packaging bag.

[0015] The utility model discloses the effect is: because the bag of packing bag's bag -aligning machine, including frame, be provided with mounting base on the frame, the mounting base is installed with the bag -clamping conveying mechanism for clamping the bag mouth of packing bag, the downstream of bag -clamping conveying mechanism is provided with the conveying roller line for supporting transportation the packing bag on the frame, the bag -clamping conveying mechanism includes the first eccentric seat and the second eccentric seat of eccentric installation with mounting base, first conveying frame and second conveying frame are installed respectively to the first eccentric seat and the second eccentric seat, first conveying pulley group and second conveying pulley group are rotatably installed on first conveying frame and second conveying frame respectively, first conveying belt and second conveying belt are arranged on first conveying pulley group and second conveying pulley group respectively, the first driving wheel of first conveying pulley group and the second driving wheel of second conveying pulley group are connected with rotary power device through rotary transmission mechanism respectively, the first eccentric seat and the second eccentric seat are driven by eccentric power device;

[0016] The mounting base is installed with first bag -clamping mechanism and second bag -clamping mechanism, the structure of first bag -clamping mechanism and second bag -clamping mechanism is same and is located above first conveying pulley group and second conveying pulley group, the first bag -clamping mechanism includes the first bag -clamping bottom plate of installation on the mounting base, the first bag -clamping bottom plate is installed on the mounting base through position adjusting structure, first bag -clamping lifting seat is vertically slidingly installed on the first bag -clamping bottom plate, first clamping jaw mounting plate is installed on the first bag -clamping lifting seat, first clamping jaw is installed on the first clamping jaw mounting plate and is driven by first opening and closing power device, rubber pad is detachably installed on the tail end of first clamping jaw, first lifting power device that drives the first bag -clamping lifting seat lifting is arranged between the first bag -clamping bottom plate and first bag -clamping lifting seat, first eccentric seat and second eccentric seat are driven by eccentric power device and are eccentric after first, the convenience powder packing bag's entry, then rotary power device and rotary transmission mechanism cooperate and drive first driving wheel and second driving wheel, so that first conveying belt and second conveying belt start transmission, then first eccentric seat and second eccentric seat are eccentric reset to the bag mouth of powder packing bag and be clamped and conveyed simultaneously, the surface of first conveying belt and second conveying belt can make the bag mouth even, then the bag -clamping of powder packing bag is conveyed to the below of first bag -clamping mechanism and second bag -clamping mechanism,

[0017] The installation position of the first bag clamping bottom plate is adjusted by the position adjusting mechanism, then the first lifting power device drives the first bag clamping lifting seat to lift, so that the first clamping jaw approaches the bag opening downward, then the first opening and closing power device drives the first clamping jaw to close, then the first lifting power device drives the first clamping jaw to hold the bag opening and then rises, and the second bag clamping mechanism is the same, so that the packaging bag is lifted, the bag opening is accurately upwardly released, and then is limited and conveyed to the downstream conveying roller line by the first conveying belt and the second conveying belt; the bag opening aligning device can align the bag opening before the bag opening is folded on the packaging bag, ensures that the bag opening of the packaging bag is at the same position each time when the bag opening is folded, and guarantees the folding quality.

[0018] In addition, the first clamping jaw comprises a first clamping jaw body and a second clamping jaw body, the upper end of the first clamping jaw body is hingedly connected to the first clamping jaw mounting plate through a first hinge shaft, the middle part of the second clamping jaw body is hingedly connected to the first clamping jaw mounting plate through a second hinge shaft, the first opening and closing power device is a first opening and closing cylinder, one end of the first opening and closing cylinder is hingedly connected to the first clamping jaw mounting plate, the other end of the first opening and closing cylinder is hingedly connected to the upper end of the second clamping jaw body, one side of the first clamping jaw body is provided with a first synchronous hinge shaft, one side of the second clamping jaw body is provided with a second synchronous hinge shaft, a synchronous opening and closing connecting rod is arranged between the first synchronous hinge shaft and the second synchronous hinge shaft, the first synchronous hinge shaft and the second synchronous hinge shaft are located between the first hinge shaft and the second hinge shaft, the first synchronous hinge shaft is located below the line connecting the first hinge shaft and the second hinge shaft, and the second synchronous hinge shaft is located above the line connecting the first hinge shaft and the second hinge shaft; by the extension of the piston rod of the first opening and closing cylinder, the end of the second clamping jaw body is inwardly closed, and at the same time, the synchronous opening and closing connecting rod drives the end of the first clamping jaw body to be inwardly closed; conversely, the retraction of the piston rod of the first opening and closing cylinder can make the end of the second clamping jaw body outwardly open, and at the same time, the synchronous opening and closing connecting rod drives the end of the first clamping jaw body to be outwardly open, so as to ensure the stable and accurate opening and closing of the bag opening.

[0019] In addition, the position adjusting structure comprises a first vertical slot and a first adjusting bolt, the first vertical slot is arranged on the first bag clamping bottom plate, the first adjusting bolt is constrained in the first vertical slot and fixes the first bag clamping bottom plate and the mounting base through a nut, and the first adjusting bolt is also constrained in the first horizontal slot; in this way, the height position of the first bag clamping bottom plate can be adjusted through the first vertical slot to adapt to packaging bags of different heights, and the horizontal position of the first bag clamping bottom plate can also be adjusted, so that the bag opening of the packaging bag is clamped at different horizontal positions.

[0020] The mounting base is lifted and slid on the frame, a screw nut mechanism is arranged on the frame and the mounting base to adjust the height of the mounting base, a screw rod of the screw nut mechanism is provided with an adjusting hand wheel, the mounting height of the whole bag clamping and conveying mechanism, the first bag clamping mechanism and the second bag clamping mechanism is adjusted, different sizes of packaging bags can be adapted, and the flexibility of the whole is improved.

[0021] The first deflection seat and the second deflection seat are the same in structure, the first deflection seat comprises two deflection rods and a first horizontal connecting beam, the upper ends of the deflection rods are hinged on the mounting base, the two ends of the first horizontal connecting beam are connected with the lower ends of the two deflection rods, the first conveying frame and the second conveying frame are the same in structure, the first conveying frame comprises a conveying beam fixed on the first horizontal connecting beam, the first conveying belt wheel set comprises the first driving wheel and the first driven wheel and a plurality of intermediate conveying wheels between the first driving wheel and the first driven wheel, the intermediate conveying wheels are rotatably arranged on the conveying beam, the first driving wheel and the first driven wheel are rotatably arranged on the first driving frame and the first driven frame respectively, the first driving frame and the second driving frame are fixed on the first horizontal connecting beam and located at the two ends of the conveying beam, and the first conveying belt is arranged between the first driving wheel and the first driven wheel; the first deflection seat is deflected, the first conveying belt wheel set is also deflected synchronously, and the stable and accurate clamping and conveying of the powder packaging bag are ensured.

[0022] The rotating power device is a rotating motor, the rotating motor is fixed on the mounting base, the rotating transmission mechanism comprises a driving gear and a driven gear which are rotatably arranged on the mounting base and are mutually pinched, the driving gear is fixed with the output shaft of the rotating motor, the gear shaft of the driving gear and the wheel shaft of the first driving wheel are in transmission connection through the universal joint transmission shaft, and the gear shaft of the driven gear and the wheel shaft of the second driving wheel are also in transmission connection through the universal joint transmission shaft; the rotating motor drives the driving gear to rotate and drives the driven gear to rotate, the first driving wheel and the second driving wheel can be effectively driven, the first driving wheel and the second driving wheel can be effectively driven when the first driving wheel and the second driving wheel are deflected through the universal joint transmission shaft, and the use effect is improved.

[0023] The first deflection seat and the second deflection seat are further provided with a constraint structure for constraining the bag opening of the packaging bag; the clamping and conveying effect of the bag opening of the powder packaging bag is further improved.

[0024] The constraint structure comprises a first constraint plate fixed on the first horizontal connecting beam and a second constraint plate fixed on the second horizontal connecting beam of the second deflection seat, and the first constraint plate and the second constraint plate cooperatively constrain the bag opening of the packaging bag; the contact area with the powder packaging bag is increased, and the flatness of the bag opening during clamping is improved.

[0025] And since the first constraint plate and the second constraint plate are installed in the same way, the side surface of the first constraint plate is provided with a connecting plate, the connecting plate is provided with a strip-shaped hole, a connecting bolt is constrained in the strip-shaped hole, and the connecting plate is fixed with the first horizontal connecting beam through the connecting bolt; the installation positions of the first constraint plate and the second constraint plate can be adjusted along the extending direction of the strip-shaped hole through the strip-shaped hole, so that the distance between the first constraint plate and the second constraint plate is changed, and different packaging bags are adapted.

[0026] And since the mounting base is further provided with a position detection sensor for detecting the position of the bag opening of the packaging bag; the first bag clamping mechanism and the second bag clamping mechanism can be accurately and stably clamped on the bag opening through the position detection sensor, and the use effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] The utility model will be further explained in connection with the drawings and examples.

[0028] Figure 1 It is the perspective view of the utility model embodiment;

[0029] Figure 2 It is the structure schematic view of screw nut mechanism on the mounting base of the utility model embodiment;

[0030] Figure 3 It is the structure schematic view of the first deflection seat and the second deflection seat of the utility model embodiment;

[0031] Figure 4 It is Figure 3 It is the enlarged view of A place;

[0032] Figure 5 It is the structure schematic view of the first conveying frame and the second conveying frame of the utility model embodiment;

[0033] Figure 6 It is the structure schematic view of the first bag clamping mechanism of the utility model embodiment;

[0034] Figure 7 It is the structure schematic view of the second bag clamping mechanism of the utility model embodiment

[0035] Figure 8 It is the front view of the position adjusting structure of the utility model embodiment;

[0036] In the drawing: 1, frame; 2, mounting base; 3, first deflection seat; 4, second deflection seat; 5, first conveying belt; 6, second conveying belt; 7, first driving wheel; 8, second driving wheel; 9, deflection rod; 10, first horizontal connecting beam; 11, conveying beam; 12, first driven wheel; 13, intermediate conveying wheel; 14, first driving frame; 15, first driven frame; 16, second horizontal connecting beam; 17, second driven wheel; 18, second driving frame; 19, second driven frame; 20, rotary motor; 21, driving gear; 22, driven gear; 23, deflection air cylinder; 24, first curved arm; 25, second curved arm; 26, synchronous connecting rod; 27, first hinged point; 28, second hinged point; 29, first constraint plate; 30, second constraint plate; 31, connecting plate; 32, strip-shaped hole; 33, connecting bolt;

[0037] 34, first bag clamping bottom plate; 35, first bag clamping lifting seat; 36, first clamping jaw mounting plate; 37, rubber pad; 38, second bag clamping bottom plate; 39, second bag clamping lifting seat; 40, second clamping jaw mounting plate; 41, first lifting motor; 42, second lifting motor; 43, first clamping jaw unit; 44, second clamping jaw unit; 45, first hinged shaft; 46, second hinged shaft; 47, first opening and closing air cylinder; 48, first synchronous hinged shaft; 49, second synchronous hinged shaft; 50, synchronous opening and closing connecting rod; 51, third clamping jaw unit; 52, fourth clamping jaw unit; 53, third hinged shaft; 54, fourth hinged shaft; 55, second opening and closing air cylinder; 56, third synchronous hinged shaft; 57, fourth synchronous hinged shaft; 58, mounting step groove; 59, central hole; 60, first vertical strip hole; 61, first adjusting bolt; 62, second vertical strip hole; 63, second adjusting bolt; 64, first horizontal strip hole; 65, second horizontal strip hole; 66, adjusting hand wheel; 67, screw-nut mechanism; 68, position detection sensor; 69, position adjusting support. DETAILED DESCRIPTION

[0038] The utility model will be described in further detail below through specific embodiments.

[0039] As Figures 1 to 8As shown, a bag aligning machine for packaging bags comprises a frame 1, a mounting base 2 is arranged on the frame 1, a bag clamping conveying mechanism for clamping the bag opening of the packaging bag is mounted on the mounting base 2, a conveying roller line for supporting and conveying the packaging bag is arranged on the frame 1 downstream of the bag clamping conveying mechanism, the bag clamping conveying mechanism comprises a first swing seat 3 and a second swing seat 4 which are swing-mounted on the mounting base 2, the first swing seat 3 and the second swing seat 4 are respectively provided with a first conveying frame and a second conveying frame, the first conveying frame and the second conveying frame are respectively provided with a first conveying belt 5 wheel set and a second conveying belt 6 wheel set, the first conveying belt 5 wheel set and the second conveying belt 6 wheel set are respectively provided with a first conveying belt 5 and a second conveying belt 6, the first driving wheel 7 of the first conveying belt 5 wheel set and the second driving wheel 8 of the second conveying belt 6 wheel set are respectively connected with a rotary power device through a rotary transmission mechanism, and the first swing seat 3 and the second swing seat 4 are driven by a swing power device.

[0040] The mounting base 2 is provided with a first bag clamping mechanism and a second bag clamping mechanism, the first bag clamping mechanism and the second bag clamping mechanism are the same in structure and are located above the first conveying belt 5 wheel set and the second conveying belt 6 wheel set, the first bag clamping mechanism comprises a first bag clamping bottom plate 34 mounted on the mounting base 2, the first bag clamping bottom plate 34 is mounted on the mounting base 2 through a position adjusting structure, a first bag clamping lifting seat 35 is vertically and slidingly mounted on the first bag clamping bottom plate 34, a first clamping jaw mounting plate 36 is mounted on the first bag clamping lifting seat 35, a first clamping jaw driven by a first opening and closing power device is mounted on the first clamping jaw mounting plate 36, a rubber pad 37 is detachably mounted at the end of the first clamping jaw, and a first lifting power device for driving the first bag clamping lifting seat 35 to lift is arranged between the first bag clamping bottom plate 34 and the first bag clamping lifting seat 35.

[0041] The second bag clamping mechanism also comprises a second bag clamping bottom plate 38 mounted on the mounting base 2, the second bag clamping bottom plate 38 is mounted on the mounting base 2 through the same position adjusting structure, a second bag clamping lifting seat 39 is vertically and slidingly mounted on the second bag clamping bottom plate 38, a second clamping jaw mounting plate 40 is mounted on the second bag clamping lifting seat 39, a second clamping jaw driven by a second opening and closing power device is mounted on the second clamping jaw mounting plate 40, a rubber pad 37 is detachably mounted at the end of the second clamping jaw, and a second lifting power device for driving the second bag clamping lifting seat 39 to lift is arranged between the second bag clamping bottom plate 38 and the second bag clamping lifting seat 39.

[0042] The first lifting power device comprises a first lifting motor 41, the second lifting power device comprises a second lifting motor 42, and the first lifting motor 41 and the second lifting motor 42 respectively drive the first bag clamping lifting seat 35 and the second bag clamping lifting seat 39 to lift stably

[0043] As shown in Figure 6 the first clamping jaw comprises a first clamping jaw body 43 and a second clamping jaw body 44, the upper end of the first clamping jaw body 43 is hingedly connected to the first clamping jaw mounting plate 36 through a first hinge shaft 45, the middle part of the second clamping jaw body 44 is hingedly connected to the first clamping jaw mounting plate 36 through a second hinge shaft 46, the first opening and closing power device is a first opening and closing cylinder 47, one end of the first opening and closing cylinder 47 is hingedly connected to the first clamping jaw mounting plate 36, the other end of the first opening and closing cylinder 47 is hingedly connected to the upper end of the second clamping jaw body 44, one side of the first clamping jaw body 43 is provided with a first synchronous hinge shaft 48, one side of the second clamping jaw body 44 is provided with a second synchronous hinge shaft 49, a synchronous opening and closing connecting rod 50 is arranged between the first synchronous hinge shaft 48 and the second synchronous hinge shaft 49, the first synchronous hinge shaft 48 and the second synchronous hinge shaft 49 are both located between the first hinge shaft 45 and the second hinge shaft 46, and the first synchronous hinge shaft 48 is located below the line connecting the first hinge shaft 45 and the second hinge shaft 46, and the second synchronous hinge shaft 49 is located above the line connecting the first hinge shaft 45 and the second hinge shaft 46;

[0044] the second clamping jaw comprises a third clamping jaw body 51 and a fourth clamping jaw body 52, the upper end of the third clamping jaw body 51 is hingedly connected to the second clamping jaw mounting plate 40 through a third hinge shaft 53, the middle part of the fourth clamping jaw body 52 is hingedly connected to the second clamping jaw mounting plate 40 through a fourth hinge shaft 54, the second opening and closing power device is a second opening and closing cylinder 55, one end of the second opening and closing cylinder 55 is hingedly connected to the second clamping jaw mounting plate 40, the other end of the second opening and closing cylinder 55 is hingedly connected to the upper end of the fourth clamping jaw body 52, one side of the third clamping jaw body 51 is provided with a third synchronous hinge shaft 56, one side of the fourth clamping jaw body 52 is provided with a fourth synchronous hinge shaft 57, a synchronous opening and closing connecting rod 50 is also arranged between the third synchronous hinge shaft 56 and the fourth synchronous hinge shaft 57, the third synchronous hinge shaft 56 and the fourth synchronous hinge shaft 57 are both located between the third hinge shaft 53 and the fourth hinge shaft 54, and the third synchronous hinge shaft 56 is located below the line connecting the third hinge shaft 53 and the fourth hinge shaft 54, and the fourth synchronous hinge shaft 57 is located above the line connecting the third hinge shaft 53 and the fourth hinge shaft 54; by the extension of the piston rod of the first opening and closing cylinder 47, the end of the second clamping jaw body 44 is inwardly merged, at the same time, the synchronous opening and closing connecting rod 50 will drive the end of the first clamping jaw body 43 to be inwardly merged; on the contrary, the retraction of the piston rod of the first opening and closing cylinder 47 can make the end of the second clamping jaw body 44 outwardly open, at the same time, the synchronous opening and closing connecting rod 50 will drive the end of the first clamping jaw body 43 to be outwardly open, ensuring the stable and accurate opening and closing of the bag opening; the second clamping jaw is also driven in the same way.

[0045] In the embodiment, the lower end of the first jaw body 43 is provided with a mounting step groove 58, a connecting stud is arranged on the mounting step groove 58, a central hole 59 is arranged on the rubber pad 37 and sleeved on the connecting stud, the rubber pad 37 is sleeved on the connecting stud and fixed by a compression nut; the mounting step groove 58 can quickly position and install the position, the rubber pad 37 can be firmly installed, and the replacement is convenient, and the use effect is improved; the connecting stud can; the second jaw body 44, the third jaw body 51 and the fourth jaw body 52 are all fixedly provided with the mounting step groove 58.

[0046] As shown in Figure 1 , Figure 2 and Figure 8 , the position adjusting structure comprises a first vertical slot 60 and a first adjusting bolt 61, the first vertical slot 60 is arranged on the first bag clamping bottom plate 34, the mounting seat 2 is also provided with a first horizontal slot 64, the first adjusting bolt 61 is constrained in the first vertical slot 60 and fixes the first bag clamping bottom plate 34 and the mounting seat 2 by a nut, and the first adjusting bolt 61 is also constrained in the first horizontal slot 64; the first bag clamping bottom plate 34 is provided with two first vertical slots 60 arranged above and below, so as to ensure firm installation, and the first bag clamping bottom plate 34 can adjust the height position through the first vertical slot 60 to adapt to packaging bags of different heights; the second bag clamping bottom plate 38 is also provided with a corresponding second vertical slot 62 and a second adjusting bolt 63 nut; the mounting seat 2 is also provided with a second horizontal slot 65, and the second adjusting bolt 63 is also constrained in the second horizontal slot 65, so as to adjust the horizontal position of the first bag clamping bottom plate 34 and the second bag clamping bottom plate 38, thereby clamping the horizontal position of the bag opening of the packaging bag.

[0047] As shown in Figure 2 , the mounting seat 2 is slidably installed on the rack 1, the rack 1 and the mounting seat 2 are provided with a lead screw nut mechanism 67 for adjusting the height of the mounting seat 2, and the lead screw of the lead screw nut mechanism 67 is provided with an adjusting hand wheel 66; the lead screw is driven to rotate by rotating the adjusting hand wheel 66, the nut is lifted, the installation height of the bag clamping conveying mechanism, the first bag clamping mechanism and the second bag clamping mechanism is adjusted as a whole, different sizes of packaging bags can be adapted, the overall flexibility is improved, and installation is facilitated.

[0048] As shown in Figure 1 and Figure 3As shown, the first and second eccentric seats 3 and 4 are identical in structure, the first eccentric seat 3 comprises two eccentric rods 9 and a first horizontal connecting beam 10, the upper ends of the eccentric rods 9 are hinged to the mounting seat 2, the two ends of the first horizontal connecting beam 10 are connected to the lower ends of the two eccentric rods 9, the first and second conveying frames are identical in structure, the first conveying frame comprises a conveying beam 11 fixed to the first horizontal connecting beam 10, the first conveying belt 5 wheel set comprises the first driving wheel 7 and the first driven wheel 12, and a plurality of intermediate conveying wheels 13 between the first driving wheel 7 and the driven wheel, the intermediate conveying wheels 13 are rotatably mounted on the conveying beam 11, the first driving wheel 7 and the first driven wheel 12 are rotatably mounted on the first driving frame 14 and the first driven frame 15 respectively, the first driving frame 14 and the second driving frame 18 are fixed to the first horizontal connecting beam 10 and located at the two ends of the conveying beam 11, and the first conveying belt 5 is installed between the first driving wheel 7 and the first driven wheel 12;

[0049] The second eccentric seat 4 also has two eccentric rods 9 and a second horizontal connecting beam 16, and the second conveying frame is provided with a conveying beam 11 mounted on the second horizontal connecting beam 16, the second conveying belt 6 wheel set comprises the second driving wheel 8 and the second driven wheel 17, and a plurality of intermediate conveying wheels 13 are also provided between the second driving wheel 8 and the second driven wheel 17 and mounted on the conveying beam 11, and the second driving wheel 8 and the second driven wheel 17 are also mounted on the second driving frame 18 and the second driven frame 19 respectively, and the second driving frame 18 and the second driven frame 19 are also located at the two ends of the conveying beam 11, and the second conveying belt 6 is located between the second driving wheel 8 and the second driven wheel 17; to ensure that the first conveying belt 5 wheel set also synchronously eccentric when the first eccentric seat 3 is eccentric, and the second eccentric seat 4 and the second conveying belt 6 wheel set are also the same, to ensure the stability and accuracy of clamping and conveying the packaging bag of the powder.

[0050] In the embodiment, the rotating power device is a rotating motor 20, the rotating motor 20 is fixed to the mounting seat 2, the rotating transmission mechanism comprises a driving gear 21 and a driven gear 22 which are clamped to each other and rotatably mounted on the mounting seat 2, the driving gear 21 is fixed to the output shaft of the rotating motor 20, the gear shaft of the driving gear 21 and the wheel shaft of the first driving wheel 7 are connected by a universal joint transmission shaft, and the gear shaft of the driven gear 22 and the wheel shaft of the second driving wheel 8 are also connected by a universal joint transmission shaft; first, the rotating motor 20 drives the driving gear 21 to rotate to drive the driven gear 22 to rotate, which can effectively drive the first driving wheel 7 and the second driving wheel 8, and through the universal joint transmission shaft, the first driving wheel 7 and the second driving wheel 8 can also be effectively driven when they are eccentric, which improves the use effect; the universal joint transmission shaft is a structure existing on the market, which is not shown in the drawing and will not be described in detail.

[0051] Further, the swing power device comprises a swing cylinder 23, which is hinged between the swing rod 9 of the first swing seat 3 and the swing rod 9 of the second swing seat 4, and a synchronous connecting rod 26 is arranged between the first swing seat 3 and the second swing seat 4; the swing cylinder 23 is extended and retracted to make the first swing seat 3 and the second swing seat 4 swing synchronously, thereby ensuring the stability of the clamped and conveyed powder packaging bag.

[0052] As shown in Figure 4 , the synchronous connecting mechanism comprises a first curved arm 24, a second curved arm 25 and a synchronous connecting rod 26, the first curved arm 24 is arranged on the swing rod 9 of the first swing seat 3, the second curved arm 25 is arranged on the swing rod 9 of the second swing seat 4, and the synchronous connecting rod 26 is hinged between the first curved arm 24 and the second curved arm 25, the hinged point between the synchronous connecting rod 26 and the first curved arm 24 is a first hinged point 27, the hinged point between the synchronous connecting rod 26 and the second curved arm 25 is a second hinged point 28, the first hinged point 27 is located above the swing center of the first swing seat 3, the second hinged point 28 is located below the swing center of the second swing seat 4, and the line connecting the swing center of the first swing seat 3 and the first hinged point 27 is parallel to the line connecting the swing center of the second swing seat 4 and the second hinged point 28; therefore, when the first swing seat 3 swings outward, the first curved arm 24 will swing inward, and the second curved arm 25 will be driven to swing outward by the synchronous connecting rod 26, thereby forming linkage and ensuring synchronous swing.

[0053] As shown in Figure 1 and Figure 3 , the first swing seat 3 and the second swing seat 4 are further provided with a constraint structure for constraining the bag opening of the packaging bag; thereby further improving the clamping and conveying effect of the bag opening of the powder packaging bag.

[0054] Further, the constraint structure comprises a first constraint plate 29 fixed on the first horizontal connecting beam 10 and a second constraint plate 30 fixed on the second horizontal connecting beam 16 of the second swing seat 4, and the first constraint plate 29 and the second constraint plate 30 cooperate to constrain the bag opening of the packaging bag; thereby increasing the contact area with the powder packaging bag and improving the flatness of the bag opening during clamping.

[0055] The first constraint plate 29 and the second constraint plate 30 are installed in the same way, the side of the first constraint plate 29 is provided with a connecting plate 31, the connecting plate 31 is provided with a strip-shaped hole 32, the connecting plate 31 is fixed with the first horizontal connecting beam 10 through a connecting bolt 33, the second constraint plate 30 is also provided with a connecting plate 31, and the connecting plate 31 is installed on the second horizontal connecting beam 16 through the strip-shaped hole 32, the installation positions of the first constraint plate 29 and the second constraint plate 30 can be adjusted along the extending direction of the strip-shaped hole 32 through the strip-shaped hole 32, so that the distance between the first constraint plate 29 and the second constraint plate 30 is changed, and different packaging bags are adapted.

[0056] In the embodiment, the installation base 2 is further provided with a position detection sensor 68 for detecting the position of the bag opening of the packaging bag, the position detection sensor 68 is installed on the installation base 2 through horizontal sliding adjustment of a position adjustment support 69, and corresponds to the first clamping jaw and the second clamping jaw, so that the first bag clamping mechanism and the second bag clamping mechanism can be accurately and stably clamped on the bag opening, and the use effect is improved.

[0057] The working principle of the embodiment is as follows: first, the height of the installation base 2 is adjusted by rotating the adjusting hand wheel 66 to drive the lead screw to rotate and drive the nut to lift, then the first swing base 3 and the second swing base 4 are swung outward relative to each other by the swing cylinder 23, then the rotating motor 20 drives the driving gear 21 to rotate to drive the driven gear 22 to rotate, and then the first driving wheel 7 and the second driving wheel 8 are driven through the universal joint transmission shaft, so that the first conveying belt 5 and the second conveying belt 6 are driven to convey, when the powder packaging bag is conveyed, the first swing base 3 and the second swing base 4 are swung inward relative to each other, the first constraint plate 29 and the second constraint plate 30 cooperate to constrain the bag opening of the packaging bag, when the powder packaging bag is conveyed to below the first bag clamping mechanism and the second bag clamping mechanism, the position detection sensor 68 detects whether there is a powder packaging bag, then the first lifting motor 41 and the second lifting motor 42 respectively drive the first bag clamping lifting base 35 and the second bag clamping lifting base 39 to descend, the first opening and closing cylinder 47 and the second opening and closing cylinder 55 respectively drive the first clamping jaw single body 43, the second clamping jaw single body 44 and the third clamping jaw single body 51 and the fourth clamping jaw single body 52 to combine and clamp two ends of the bag opening of the packaging bag, and then the first bag clamping lifting base 35 and the second bag clamping lifting base 39 are driven to ascend to lift the packaging bag, so that the bag opening of the packaging bag is erected.

[0058] The above-described embodiment is only a description of the preferred embodiment of the present application, and is not intended to limit the scope of the present application, and various modifications and improvements of the technical scheme of the present application made without departing from the design spirit of the present application shall fall within the protection scope determined by the claims of the present application.

Claims

1. A bag straightener for a bag packaging machine, characterized in that: The machine frame is provided with a mounting seat, a bag clamping and conveying mechanism for clamping the bag opening of a packaging bag is mounted on the mounting seat, a conveying roller line for supporting the transportation of the packaging bag is arranged on the machine frame downstream of the bag clamping and conveying mechanism, the bag clamping and conveying mechanism comprises a first deflection seat and a second deflection seat which are deflection-mounted on the mounting seat, the first deflection seat and the second deflection seat are respectively provided with a first conveying frame and a second conveying frame, the first conveying frame and the second conveying frame are respectively provided with a first conveying pulley set and a second conveying pulley set which are rotationally mounted thereon, the first conveying pulley set and the second conveying pulley set are respectively provided with a first conveying belt and a second conveying belt, the first driving pulley of the first conveying pulley set and the second driving pulley of the second conveying pulley set are respectively connected with a rotary power device through a rotary transmission mechanism, and the first deflection seat and the second deflection seat are driven by a deflection power device. The mounting seat is provided with a first bag clamping mechanism and a second bag clamping mechanism, the first bag clamping mechanism and the second bag clamping mechanism are identical in structure and located above the first conveying pulley set and the second conveying pulley set, the first bag clamping mechanism comprises a first bag clamping bottom plate which is mounted on the mounting seat, the first bag clamping bottom plate is mounted on the mounting seat through a position adjusting structure, a first bag clamping lifting seat is vertically slidably mounted on the first bag clamping bottom plate, a first clamping jaw mounting plate is mounted on the first bag clamping lifting seat, a first clamping jaw driven by a first opening and closing power device is mounted on the first clamping jaw mounting plate, a rubber pad is detachably mounted at the end of the first clamping jaw, and a first lifting power device for driving the first bag clamping lifting seat to lift is arranged between the first bag clamping bottom plate and the first bag clamping lifting seat.

2. A bag aligner as claimed in claim 1, wherein: The first clamping jaw comprises a first clamping jaw body and a second clamping jaw body, the first clamping jaw body is hingedly connected to the first clamping jaw mounting plate through a first hinge shaft at the upper end thereof, the second clamping jaw body is hingedly connected to the first clamping jaw mounting plate through a second hinge shaft at the middle portion thereof, the first opening and closing power device is a first opening and closing cylinder, one end of the first opening and closing cylinder is hingedly connected to the first clamping jaw mounting plate, the other end of the first opening and closing cylinder is hingedly connected to the upper end of the second clamping jaw body, a first synchronous hinge shaft is arranged on one side of the first clamping jaw body, a second synchronous hinge shaft is arranged on one side of the second clamping jaw body, a synchronous opening and closing connecting rod is arranged between the first synchronous hinge shaft and the second synchronous hinge shaft, the first synchronous hinge shaft and the second synchronous hinge shaft are both located between the first hinge shaft and the second hinge shaft, the first synchronous hinge shaft is located below the line connecting the first hinge shaft and the second hinge shaft, and the second synchronous hinge shaft is located above the line connecting the first hinge shaft and the second hinge shaft.

3. A bag aligner as claimed in claim 2, wherein: The position adjusting structure comprises a first vertical slot and a first adjusting bolt, the first vertical slot is arranged on the first bag clamping bottom plate, the mounting seat is further provided with a first horizontal slot, the first adjusting bolt is constrained in the first vertical slot and fixes the first bag clamping bottom plate to the mounting seat through a nut, and the first adjusting bolt is also constrained in the first horizontal slot.

4. A bag aligner as claimed in claim 3, wherein: The mounting base is lifted and slid on the frame, the frame and the mounting base are provided with a screw nut mechanism for adjusting the height of the mounting base, and a hand wheel is arranged on the screw of the screw nut mechanism.

5. The bag aligner of claim 1, wherein: The first and second deflection seats are identical in structure, the first deflection seat comprises two deflection rods and a first horizontal connecting beam, the upper ends of the deflection rods are hingedly connected to the mounting base, and the two ends of the first horizontal connecting beam are connected to the lower ends of the two deflection rods.

6. A bag aligner as claimed in claim 5, wherein: The first and second conveying frames are identical in structure, the first conveying frame comprises a conveying beam fixed to the first horizontal connecting beam, the first conveying pulley set comprises the first driving pulley and the first driven pulley and a plurality of intermediate conveying pulleys between the first driving pulley and the first driven pulley, the intermediate conveying pulleys are rotatably arranged on the conveying beam, the first driving pulley and the first driven pulley are rotatably arranged on the first driving frame and the first driven frame respectively, the first driving frame and the first driven frame are fixed to the first horizontal connecting beam and located at the two ends of the conveying beam, and the first conveying belt is arranged between the first driving pulley and the first driven pulley.

7. A bag aligner as claimed in claim 6, wherein: The rotating power device is a rotating motor, the rotating motor is fixed to the mounting base, the rotating transmission mechanism comprises a driving gear and a driven gear rotatably arranged on the mounting base and mutually pinched, the driving gear is fixed to the output shaft of the rotating motor, the gear shaft of the driving gear and the wheel shaft of the first driving pulley are connected through a universal joint transmission shaft, and the gear shaft of the driven gear and the wheel shaft of the second driving pulley are also connected through a universal joint transmission shaft.

8. A bag aligner as claimed in claim 7, wherein: The first and second deflection seats are further provided with a constraint structure for constraining the bag opening of the packaging bag.

9. A bag aligner as claimed in claim 8, wherein: The constraint structure comprises a first constraint plate fixed to the first horizontal connecting beam and a second constraint plate fixed to the second horizontal connecting beam of the second deflection seat, and the first constraint plate and the second constraint plate cooperatively constrain the bag opening of the packaging bag.

10. A bag aligner as claimed in claim 9, wherein: The first and second constraint plates are identical in mounting mode, the side surface of the first constraint plate is provided with a connecting plate, the connecting plate is provided with a strip-shaped hole, a connecting bolt is constrained in the strip-shaped hole, and the connecting plate is fixed to the first horizontal connecting beam through the connecting bolt. The mounting base is further provided with a position detection sensor for detecting the position of the bag opening of the packaging bag.

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