CN216128530U - Rotary upper and lower end seal - Google Patents

Abstract

The utility model discloses a rotary upper and lower end seal, which drives an eccentric wheel to rotate through a power device, the eccentric wheel drives a first connecting rod to act on a sliding frame, the sliding frame drives a rocker to swing through a second connecting rod, the rocker drives a lower end seal seat to move through a third connecting rod, the rotating motion is converted into the up-and-down relative motion of the upper end seal seat and the lower end seal seat through the transmission of each part, the speed of packaging and sealing is effectively improved, and the working noise is effectively controlled.

Description

Rotary upper and lower end seal

Technical Field

The utility model relates to the technical field of packaging, in particular to a rotary upper end seal and a rotary lower end seal.

Background

The end sealing device is an important part on the packaging machine, when the packaging machine works, packaging bag paper is firstly formed into a packaging bag model through the packaging machine, then materials are filled in the packaging bag, the packaging bag is moved to the longitudinal sealing device to seal the side face of the packaging bag, then the packaging bag is moved to the end sealing device, and the end sealing device seals the end part of the packaging bag to package the materials. In the existing packaging machine, the end seal mostly adopts an up-down reciprocating structure, and the lifting of an upper end seal seat and a lower end seal seat is realized by adopting a cylinder, so that an air source (an air compressor) is required, and the end seal mechanism driven by the cylinder has the problems of low running speed and high noise.

SUMMERY OF THE UTILITY MODEL

The present invention provides a rotary upper and lower end seal to solve the problems set forth above in the background art. In order to achieve the purpose, the utility model provides the following technical scheme: a rotary upper and lower end seal comprises a frame, wherein a sliding frame capable of sliding is arranged in the frame; an upper end plate and a lower end plate are respectively fixedly arranged at two ends of the sliding frame; an upper end sealing seat and a lower end sealing seat are slidably arranged on the sliding frame, and the upper end sealing seat and the lower end sealing seat are oppositely arranged; a spring buffer device and a cutter device are arranged between the upper end sealing seat and the upper end plate; the end part of the rack is provided with a rotary driving device, and the middle part of the lower end plate is provided with a connecting shaft; the rotary driving device comprises a power device, a transmission shaft, a rocker, an eccentric wheel, a first connecting rod, a second connecting rod and a third connecting rod; the transmission shaft is connected with the rack through a bearing, the power device is fixedly arranged on the rack and is in transmission connection with the transmission shaft, the rocker is arranged on the transmission shaft through a bearing, and the eccentric wheel is connected with the end part of the transmission shaft; one end of the first connecting rod is rotatably connected with the eccentric wheel, and the other end of the first connecting rod is rotatably connected with the connecting shaft; two ends of the rocker are respectively and rotatably connected with one ends of the first connecting rod and the second connecting rod, the other end of the first connecting rod is rotatably connected with the lower end seal seat, and the other end of the second connecting rod is rotatably connected with the connecting shaft.

Preferably, two spring buffering devices are arranged and are respectively positioned at two sides of the cutter device; the spring buffer device comprises a spring pin and a die spring, one end of the spring pin is connected with the upper end plate in a sliding mode, and the other end of the spring pin is fixedly connected with the upper end sealing seat; the mould spring is sleeved in the spring pin, one end of the mould spring is connected with the upper end plate, and the other end of the mould spring is connected with the upper end sealing seat.

Preferably, the cutter device comprises a cutter seat which is slidably mounted between the upper end plate and the upper end sealing seat through a pair of guide rods; two ends of the cutter seat are respectively provided with a linkage mechanism, the middle part of the cutter seat is provided with a cutter, and the upper end seal seat is provided with a cutter groove matched with the cutter; the linkage mechanism comprises a cutter holder upper support, a prying rod and a cutter holder lower support, the cutter holder upper support is connected with the upper end plate, and the cutter holder lower support is connected with the top surface of the upper end sealing seat; one end of the prying rod is rotatably connected with the cutter holder lower support, the middle part of the prying rod is rotatably connected with the cutter holder upper support, and the other end of the prying rod is rotatably connected with the cutter holder.

Preferably, the rack comprises an upper connecting plate, a lower connecting plate and two side plates, and two ends of each side plate are fixedly connected with the upper connecting plate and the lower connecting plate through bolts respectively; the sliding frame comprises a pair of sliding rods, one ends of the sliding rods are fixedly connected with the upper end plate, and the other ends of the sliding rods are fixedly connected with the lower end plate; a linear bearing seat is arranged on the sliding rod and is positioned between the upper end sealing seat and the lower end sealing seat; and a fixed block is arranged on the side surface of the linear bearing seat and fixedly connected with the nearest side plate.

Preferably, the first connecting rod, the second connecting rod and the third connecting rod have the same structure, wherein the first connecting rod comprises a linkage rod and two fisheye joints, and the two fisheye joints are respectively in threaded connection with two ends of the linkage rod.

Preferably, the power device comprises a supporting seat, a motor, a speed reducer and a coupling; the supporting seat is fixedly connected with the rack, the speed reducer is arranged on the outer side of the supporting seat, and the motor is arranged on one side of the speed reducer; an output shaft of the motor is connected with the speed reducer, an output shaft of the speed reducer is connected with the coupler, and the coupler is connected with the transmission shaft; the coupler is located in the supporting seat.

Preferably, the motor is a servo motor, and the reducer is a planetary reducer.

Preferably, the upper end seal seat is connected with the sliding frame through a linear bearing, and the lower end seal seat is connected with the sliding frame through a linear bearing.

Compared with the prior art, the utility model has the beneficial effects that: the utility model is provided with a rotary driving device as power output, wherein the power device drives an eccentric wheel to rotate, the eccentric wheel drives a first connecting rod to act on a sliding frame, the sliding frame drives a rocker to swing through a second connecting rod, the rocker drives a lower end sealing seat to move through a third connecting rod, and the rotary motion of the rotary driving device is converted into the up-and-down relative motion of an upper end sealing seat and a lower end sealing seat through the series of transmission, so that the speed of packaging and sealing is effectively improved, and the working noise is effectively controlled.

Drawings

FIG. 1 is a front view of a rotary upper and lower end seal according to an embodiment of the present invention;

FIG. 2 is a back view of the rotary upper and lower end seals according to the embodiment of the present invention;

FIG. 3 is a front view of a rotary upper and lower end seal according to an embodiment of the present invention;

FIG. 4 is a side view of a rotary upper and lower end seal according to an embodiment of the present invention;

FIG. 5 is a top view, in cross section, of a rotary upper and lower end seal according to an embodiment of the present invention;

in fig. 1 to 5, the corresponding relationship between the names of the components and the reference numbers is as follows:

1-frame, 101-upper connecting plate, 102-lower connecting plate, 103-side plate, 2-upper end plate, 3-lower end plate, 4-upper end seal seat, 5-lower end seal seat, 6-spring buffer device, 601-spring pin, 602-mould spring, 7-cutter device, 701-cutter seat, 702-guide rod, 703-cutter, 704-cutter seat upper support, 705-pry rod, 706-cutter seat lower support, 8-connecting shaft, 9-power device, 901-support seat, 902-motor, 903-reducer, 904-coupler, 10-transmission shaft, 103-side plate, 2-upper end plate, 3-lower end plate, 4-upper end seal seat, 5-lower end seal seat, 6-spring buffer device, 601-spring pin, 602-mould spring, 7-cutter seat device, 701-cutter seat, 702-guide rod, 703-cutter, 704-cutter seat upper support, 705-pry rod, 706-cutter seat lower support rod, 8-connecting shaft, 9-power device, 901-support seat, 902-motor, 903-reducer, 904-coupler, 10-transmission shaft, and motor, 11-rocker, 12-eccentric wheel, 13-first connecting rod, 14-second connecting rod, 15-third connecting rod, 16-slide rod, 17-linear bearing seat.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, the present invention provides a rotary upper and lower end seal, which includes a frame 1, wherein a slidable sliding frame is disposed in the frame 1; an upper end plate 2 and a lower end plate 3 are respectively fixedly arranged at two ends of the sliding frame; an upper end sealing seat 4 and a lower end sealing seat 5 are slidably arranged on the sliding frame, and the upper end sealing seat 4 is opposite to the lower end sealing seat 5; a spring buffer device 6 and a cutter 703 device 7 are arranged between the upper end seal seat 4 and the upper end plate 2; a rotary driving device is arranged at the end part of the frame 1, and a connecting shaft 8 is arranged in the middle of the lower end plate 3; the rotary driving device comprises a power device 9, a transmission shaft 10, a rocker 11, an eccentric wheel 12, a first connecting rod 13, a second connecting rod 14 and a third connecting rod 15; the transmission shaft 10 is connected with the rack 1 through a bearing, the power device 9 is fixedly arranged on the rack 1 and is in transmission connection with the transmission shaft 10, the rocker 11 is arranged on the transmission shaft 10 through a bearing, and the eccentric wheel 12 is connected with the end part of the transmission shaft 10; one end of the first connecting rod 13 is rotatably connected with the eccentric wheel 12, and the other end of the first connecting rod is rotatably connected with the connecting shaft 8; two ends of the rocker 11 are respectively rotatably connected with one ends of the first connecting rod 13 and the second connecting rod 14, the other end of the first connecting rod 13 is rotatably connected with the lower end seal seat 5, and the other end of the second connecting rod 14 is rotatably connected with the connecting shaft 8.

In the embodiment of the present invention, the sliding frame is a rectangular structure, and both sides of the sliding frame are slidably connected in the frame 1, and the whole sliding frame slides together relative to the frame 1 when sliding. The sliding power comes from a rotary driving device, a power device 9 in the rotary driving device is a power output end, the power device 9 drives a transmission shaft 10 to rotate, an eccentric wheel 12 on the transmission shaft 10 also rotates along with the transmission shaft, in the rotating process, a first connecting rod 13 connected to the edge of the eccentric wheel 12 is driven to swing, the swing of the first connecting rod 13 acts on the lower end plate 3 of the sliding frame through a connecting shaft 8, so that the sliding frame slides along the rack 1, in the sliding process of the sliding frame, the second connecting rod 14 acts on a second connecting rod 14 on the connecting shaft 8, the second connecting rod 14 can push and pull the rocker 11 along with the sliding of the sliding frame, the lower rocker 11 of the second connecting rod 14 starts to swing, and meanwhile, a third connecting rod 15 is driven to move; because the third connecting rod 15 is connected with the lower end seal seat 5, and the lower end seal seat 5 can slide up and down in the sliding frame, the third connecting rod 15 can drive the lower end seal seat 5 to move along with the swinging of the rocker 11; because the spring buffer device 6 is arranged between the upper end sealing seat 4 and the upper end plate 2, the upper end sealing seat 4 can move along with the movement of the upper end plate 2. Specifically, one end of the spring buffer device 6 can be fixed with the upper end seal seat 4, the other end of the spring buffer device is connected with the upper end plate 2 in a sliding manner, under the elastic force action of the spring buffer device 6, the distance between the upper end seal seat 4 and the upper end plate 2 is kept relatively stable, when the sliding frame integrally slides, the upper end seal seat 4 also moves along with the sliding frame, when the upper end seal seat 4 is extruded, the upper end seal seat 4 can slide in the sliding frame, and is buffered under the action of the spring buffer device 6; during the extrusion process, the upper end seal seat 4 and the lower end seal seat 5 clamp the packaging bag and push the packaging bag to the cutter 703 device 7 to complete the cutting, and then the upper end seal seat 4 and the lower end seal seat 5 are separated to complete the sealing and cutting of the packaging bag.

The working principle of the utility model is as follows: when the packaging bag needs to be sealed and cut off, the power device 9 drives the eccentric wheel 12 to rotate, the eccentric wheel 12 drives the first connecting rod 13 to act on the sliding frame, so that the sliding frame slides downwards, the sliding frame drives the rocker 11 to swing through the second connecting rod 14, and the rocker 11 drives the lower end sealing seat 5 to move upwards through the third connecting rod 15; the sliding frame is at the in-process of downstream, and the upper end plate 2 that is located the sliding frame top drives upper end seal seat 4 downstream through spring buffer 6, and upper end seal seat 4 and lower extreme seal seat 5 relative motion press from both sides tight and accomplish the heat-seal with the wrapping bag when both contacts, and along with eccentric wheel 12 continues to rotate and drives the tip of first connecting rod 13 rotatory to the minimum, lower extreme seal seat 5 extrudes upper end seal seat 4, with the wrapping bag toward the direction propelling movement of cutter 703 device 7 to accomplish the cutting. With the continued rotation of the eccentric wheel 12, the end of the first connecting rod 13 is driven to rise, and the upper end seal seat 4 is separated from the lower end seal seat 5 to prepare for the sealing of the next packaging bag.

Preferably, two spring buffering devices 6 are arranged and are respectively positioned at two sides of the cutter 703 device 7; the spring buffer device 6 comprises a spring pin 601 and a die spring 602, one end of the spring pin 601 is connected with the upper end plate 2 in a sliding manner, and the other end of the spring pin 601 is fixedly connected with the upper end seal seat 4; the mold spring 602 is sleeved in the spring pin 601, one end of the mold spring is connected with the upper end plate 2, and the other end of the mold spring is connected with the upper end seal seat 4. Through the above structural design, the upper end seal seat 4 is slidably connected to the upper end plate 2 through the spring pin 601, and then the distance between the upper end seal seat and the upper end plate is maintained through the die spring 602, so that the upper end seal seat 4 can slide up and down along the sliding frame when the upper end seal seat 4 is pressed.

Preferably, the cutter 703 device 7 includes a cutter seat 701, and the cutter seat 701 is slidably mounted between the upper end plate 2 and the upper end seal seat 4 through a pair of guide rods 702; two ends of the cutter seat 701 are respectively provided with a linkage mechanism, the middle part of the cutter seat is provided with a cutter 703, and the upper end seal seat 4 is provided with a cutter groove matched with the cutter 703; the linkage mechanism comprises a tool apron upper support 704, a prying rod 705 and a tool apron lower support 706, the tool apron upper support 704 is connected with the upper end plate 2, and the tool apron lower support 706 is connected with the top surface of the upper end seal seat 4; one end of the prying rod 705 is rotatably connected with the tool apron lower support 706, the middle part of the prying rod is rotatably connected with the tool apron upper support 704, and the other end of the prying rod is rotatably connected with the tool apron 701. In this embodiment, the middle of the guide rod 702 is fixedly connected to the cutter seat 701, and both ends of the guide rod are slidably connected to the upper end seal seat 4 and the upper end plate 2, respectively, so that the cutter 703 on the cutter seat 701 can be kept relatively stable with the opening of the cutter slot by the guide rod 702, and the cutter 703 can conveniently enter the cutter slot. The prying rod 705 is connected with the upper tool apron support 704 and the lower tool apron support 706 in the same mode, two sliding grooves are formed in the prying rod 705, then a cylinder matched with the sliding grooves is arranged on the upper tool apron support 704 and the lower tool apron support 706, the cylinder is inserted into the sliding grooves, when the cylinder rises or descends, the action of the prying rod 705 is achieved through acting on the inner wall of the sliding grooves, and finally the effect of driving the tool apron 701 to rise and fall is achieved. Through the structural design, when the upper end seal seat 4 is pressed to move upwards, the upper end seal seat 4 drives the cutter seat lower support 706 to move upwards, the position of the cutter seat upper support 704 is kept relatively fixed relative to the cutter seat lower support 706, so that the cutter seat lower support 706 drives the cutter seat 701 to move downwards through the prying rod 705, and at this time, the cutter 703 can penetrate through the cutter groove to cut off the packaging bag downwards.

Preferably, the rack 1 comprises an upper connecting plate 101, a lower connecting plate 102 and two side plates 103, wherein two ends of each side plate 103 are fixedly connected with the upper connecting plate 101 and the lower connecting plate 102 through bolts respectively; the sliding frame comprises a pair of sliding rods 16, one end of each sliding rod 16 is fixedly connected with the upper end plate 2, and the other end of each sliding rod 16 is fixedly connected with the lower end plate 3; a linear bearing seat 17 is arranged on the sliding rod 16 and is positioned between the upper end seal seat 4 and the lower end seal seat 5; a fixed block is arranged on the side surface of the linear bearing seat 17, and the fixed block is fixedly connected with the nearest side plate 103. Through the structural design, the frame 1 is a rectangular structure formed by enclosing two side plates 103, an upper connecting plate 101 and a lower connecting plate 102, wherein the rotary driving device is installed on the lower connecting plate 102. The sliding frame is also a rectangular structure formed by enclosing a pair of sliding rods 16, an upper end plate 2 and a lower end plate 3, the sliding frame is connected with the rack 1 in a sliding mode through the pair of sliding rods 16, in order to enhance stability, linear bearing seats 17 are arranged on the sliding rods 16 on two sides of the sliding frame, and the linear bearing seats 17 are connected with the side face of the rack 1 through fixing plates, so that the sliding frame can slide on the rack 1 in a flowing mode.

Preferably, the first link 13, the second link 14 and the third link 15 have the same structure, wherein the first link 13 includes a linkage rod and two fisheye joints, and the two fisheye joints are respectively connected to two ends of the linkage rod through threads.

Preferably, the power device 9 comprises a support base 901, a motor 902, a speed reducer 903 and a coupling 904; the supporting seat 901 is fixedly connected with the frame 1, the speed reducer 903 is installed on the outer side of the supporting seat 901, and the motor 902 is installed on one side of the speed reducer 903; an output shaft of the motor 902 is connected with the speed reducer 903, an output shaft of the speed reducer 903 is connected with the coupling 904, and the coupling 904 is connected with the transmission shaft 10; the coupling 904 is located in the support base 901. Through the above structural design, the motor 902 outputs power through the speed reducer 903, and transmits the power to the transmission shaft 10 through the coupling 904, so that the rotation motion of the eccentric wheel 12 is realized.

Preferably, the motor 902 is a servo motor 902, and the reducer 903 is a planetary reducer 903.

Preferably, the upper end seal seat 4 is connected with the sliding frame through a linear bearing, and the lower end seal seat 5 is connected with the sliding frame through a linear bearing. Through set up linear bearing in the junction, promote the smoothness degree of being connected between upper end seal receptacle 4, lower extreme seal receptacle 5 and the carriage, promote transmission performance.

Compared with the prior art, the utility model has the beneficial effects that: the utility model is provided with a rotary driving device as power output, wherein the power device drives an eccentric wheel to rotate, the eccentric wheel drives a first connecting rod to act on a sliding frame, the sliding frame drives a rocker to swing through a second connecting rod, the rocker drives a lower end sealing seat to move through a third connecting rod, and the rotary motion of the rotary driving device is converted into the up-and-down relative motion of an upper end sealing seat and a lower end sealing seat through the series of transmission, so that the speed of packaging and sealing is effectively improved, and the working noise is effectively controlled.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (8)

1. A rotary upper end seal and a rotary lower end seal are characterized by comprising a rack (1), wherein a sliding frame capable of sliding is arranged in the rack; an upper end plate (2) and a lower end plate (3) are respectively fixedly arranged at two ends of the sliding frame; an upper end sealing seat (4) and a lower end sealing seat (5) are slidably arranged on the sliding frame, and the upper end sealing seat and the lower end sealing seat are oppositely arranged; a spring buffer device (6) and a cutter (703) device (7) are arranged between the upper end seal seat and the upper end plate; the end part of the frame is provided with a rotary driving device, and the middle part of the lower end plate is provided with a connecting shaft (8); the rotary driving device comprises a power device (9), a transmission shaft (10), a rocker (11), an eccentric wheel (12), a first connecting rod (13), a second connecting rod (14) and a third connecting rod (15); the transmission shaft is connected with the rack through a bearing, the power device is fixedly arranged on the rack and is in transmission connection with the transmission shaft, the rocker is arranged on the transmission shaft through a bearing, and the eccentric wheel is connected with the end part of the transmission shaft; one end of the first connecting rod is rotatably connected with the eccentric wheel, and the other end of the first connecting rod is rotatably connected with the connecting shaft; two ends of the rocker are respectively and rotatably connected with one ends of the first connecting rod and the second connecting rod, the other end of the first connecting rod is rotatably connected with the lower end seal seat, and the other end of the second connecting rod is rotatably connected with the connecting shaft.

2. The rotary upper and lower end seals of claim 1, wherein there are two of said spring buffer means located on either side of said cutter means; the spring buffer device comprises a spring pin (601) and a die spring (602), one end of the spring pin is connected with the upper end plate in a sliding mode, and the other end of the spring pin is fixedly connected with the upper end sealing seat; the mould spring is sleeved in the spring pin, one end of the mould spring is connected with the upper end plate, and the other end of the mould spring is connected with the upper end sealing seat.

3. The rotary upper and lower end seal according to claim 2 wherein said cutter assembly comprises a cutter block (701) slidably mounted between said upper end plate and said upper end seal block by a pair of guide rods (702); two ends of the cutter seat are respectively provided with a linkage mechanism, the middle part of the cutter seat is provided with a cutter (703), and the upper end seal seat is provided with a cutter groove matched with the cutter; the linkage mechanism comprises a cutter holder upper support (704), a prying rod (705) and a cutter holder lower support (706), the cutter holder upper support is connected with the upper end plate, and the cutter holder lower support is connected with the top surface of the upper end sealing seat; one end of the prying rod is rotatably connected with the cutter holder lower support, the middle part of the prying rod is rotatably connected with the cutter holder upper support, and the other end of the prying rod is rotatably connected with the cutter holder.

4. The rotary upper and lower end seals according to claim 1, wherein the frame comprises an upper connecting plate (101), a lower connecting plate (102) and two side plates (103), and two ends of the side plates are fixedly connected with the upper connecting plate and the lower connecting plate respectively through bolts; the sliding frame comprises a pair of sliding rods (16), one end of each sliding rod is fixedly connected with the upper end plate, and the other end of each sliding rod is fixedly connected with the lower end plate; a linear bearing seat (17) is arranged on the sliding rod, and the bearing seat is positioned between the upper end sealing seat and the lower end sealing seat; and a fixed block is arranged on the side surface of the linear bearing seat and fixedly connected with the nearest side plate.

5. The rotary upper and lower end seal according to claim 1, wherein the first, second and third links have the same structure, and wherein the first link comprises a linkage rod and two fisheye joints, and the two fisheye joints are respectively connected to two ends of the linkage rod by screw threads.

6. The rotary upper and lower end seals according to claim 1, wherein the power device comprises a support base (901), a motor (902), a reducer (903) and a coupling (904); the supporting seat is fixedly connected with the rack, the speed reducer is arranged on the outer side of the supporting seat, and the motor is arranged on one side of the speed reducer; an output shaft of the motor is connected with the speed reducer, an output shaft of the speed reducer is connected with the coupler, and the coupler is connected with the transmission shaft; the coupler is located in the supporting seat.

7. The rotary upper and lower end seal as described in claim 6, wherein said motor is a servo motor and said reducer is a planetary reducer.

8. The rotary upper and lower end seals according to any one of claims 1-7, wherein the upper seal housing is coupled to the sliding housing by linear bearings and the lower seal housing is coupled to the sliding housing by linear bearings.

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