Longitudinal sealing mechanism

Abstract

The utility model discloses a longitudinal sealing mechanism which comprises a machine frame and a sliding frame, a movable heating base, a fixed heating base and a push plate are arranged on the sliding frame, a left heating block is arranged on the fixed heating base, and a right heating block is arranged on the movable heating base. An air cylinder is arranged on the push plate, and an adjusting assembly is arranged on the sliding frame and connected with a piston rod of the air cylinder. A right pressing wheel plate is arranged at the bottom of the movable heating seat, and a pair of right pressing wheels is arranged on the right pressing wheel plate; a sliding groove frame is arranged on the side face of the right pressing wheel plate, a left pressing wheel plate is arranged on the sliding groove frame, and a pair of left pressing wheels is arranged on the left pressing wheel plate. A left heating block and a right heating block are arranged to heat a packaging film, a left side pressing wheel and a right side pressing wheel are used for extruding and sealing the packaging film, and an adjusting assembly is arranged to quickly adjust the sealing position so as to adapt to the packaging films with different thicknesses; the device is simple in overall structure, reasonable in design, small in occupied space, high in speed and capable of working continuously and uninterruptedly.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, and more specifically, particularly to a longitudinal sealing mechanism. Background Art

[0002] As the name implies, packaging machines are machines used to package products. They were first widely used in the food industry, and then expanded to many fields such as medicines, hardware, toys, and gifts. Now they have become one of the most commonly used commercial machines. In packaging machines, the longitudinal sealing mechanism is an important component, which plays the role of longitudinally sealing the packaging film into bags. The longitudinal sealing mechanisms in existing packaging machines are mostly fixed, large in size, occupying more packaging machine space, and it is generally difficult to open the equipment for inspection and maintenance after installation. Once the packaging film jams, there is no way to clean it up and adjust the equipment in time. In addition, the existing longitudinal sealing mechanism is slow and cannot meet the longitudinal sealing requirements of high-speed continuous packaging machines and liquid packaging machines. Utility Model Content

[0003] The utility model provides a longitudinal sealing mechanism to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical solutions: a longitudinal sealing mechanism, comprising a frame, a sliding frame rotatably connected to the frame, a movable heating seat, a fixed heating seat and a push plate provided on the sliding frame, the movable heating seat and the push plate are respectively slidably connected to the sliding frame; a left heating block is provided on the fixed heating seat, and a right heating block is provided on the movable heating seat;

[0004] A connecting plate is provided on the back of the movable heating seat, and the other side of the connecting plate is connected to the push plate; a cylinder is provided on the push plate, and an adjusting component is provided on the sliding frame, and the adjusting component is connected to the piston rod of the cylinder; a right pressure wheel plate is provided at the bottom of the movable heating seat, and a pair of right pressure wheels are provided on the right pressure wheel plate;

[0005] A slide slot frame is provided on the side of the right pressure wheel plate, a left pressure wheel plate is provided on the slide slot frame, and a pair of left pressure wheels are provided on the left pressure wheel plate; the left pressure wheel is arranged opposite to the right pressure wheel; a wrench is provided on the side of the slide slot frame, and the wrench is connected to the left pressure wheel plate through a pull rod.

[0006] Preferably, the frame includes a main fixed plate, a sliding rod group is provided on the main fixed plate, and a T-shaped plate is slidably provided on the sliding rod group; a through groove is provided on the main fixed plate, and the protruding end of the T-shaped plate passes through the through groove and is connected to the sliding frame; an adjusting screw is also provided on the sliding rod group, and the adjusting screw is rotatably connected to the sliding rod group and is threadedly connected to the T-shaped plate.

[0007] Preferably, the sliding frame includes a U-shaped plate, an end plate and a pair of linear optical axes parallel to each other; the two ends of the linear optical axis are respectively connected to the U-shaped plate and the end plate; a rotating groove is provided on the U-shaped plate, and the T-shaped plate is rotatably connected to the rotating groove.

[0008] Preferably, the T-shaped plate and the rotating groove are connected via a rotating shaft; a locking handle is provided on the T-shaped plate, and an opening cooperating with the locking handle is provided on the U-shaped plate.

[0009] Preferably, the adjustment assembly includes an adjustment handwheel, an adjustment screw and a rotating seat; the adjustment screw is rotatably disposed on the end plate, the rotating seat is disposed on the piston rod of the cylinder, the adjustment handwheel is disposed at one end of the outer side of the adjustment screw, and the other end of the adjustment screw is rotatably connected to the rotating seat.

[0010] Preferably, it further comprises a digital position display arranged on the end plate, and the digital position display is connected to the adjusting screw rod.

[0011] Preferably, the wrench includes a handle portion and an arc-shaped portion, the arc-shaped portion is provided with a U-shaped groove, the pull rod is inserted into the U-shaped groove, and is rotatably connected to the U-shaped groove through a short shaft; the pull rod sleeve is provided with a spring, one end of the spring abuts against the slide slot frame, and the other end abuts against the left pressure wheel plate.

[0012] Preferably, the cylinder is a short-stroke cylinder.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the longitudinal sealing mechanism of the utility model heats the packaging film by arranging the left heating block and the right heating block, and squeezes and seals the packaging film by the left pressure wheel and the right pressure wheel, and an adjustment component is provided to quickly adjust the sealing position to adapt to packaging films of different thicknesses, and can effectively seal the passing packaging films; the utility model has a simple overall structure, a reasonable design, a small space occupied by the mechanism, a high speed, can work continuously and uninterruptedly, and can adapt to the longitudinal sealing work of high-speed continuous packaging machines and liquid packaging machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the longitudinal sealing mechanism of an embodiment of the utility model;

[0015] Figure 2 Another structural view of the longitudinal sealing mechanism of the embodiment of the utility model;

[0016] Figure 3 It is a front view of the longitudinal sealing mechanism of the embodiment of the utility model;

[0017] Figure 4It is a side view of the longitudinal sealing mechanism of the embodiment of the utility model;

[0018] Figure 5 Another side view of the longitudinal sealing mechanism of the embodiment of the utility model;

[0019] Figure 6 A top view of the longitudinal sealing mechanism of an embodiment of the utility model;

[0020] Figure 7 A bottom view of the longitudinal sealing mechanism of an embodiment of the utility model;

[0021] exist Figures 1 to 7 In the figure, the corresponding relationship between the names of the components and the numbers of the drawings is as follows:

[0022] 1--Frame, 101--Main fixed plate, 102--Slide rod group, 103--T-shaped plate, 104--Adjusting screw, 105--Locking handle, 2--Sliding frame, 201--U-shaped plate, 2011--Opening, 202--End plate, 203--Linear optical axis, 3--Movable heating seat, 4--Fixed heating seat, 5--Push plate, 6--Left heating block, 7--Right heating block, 8- -connecting plate, 9--cylinder, 10--adjusting assembly, 1001--adjusting handwheel, 1002--adjusting screw, 1003--rotating seat, 11--right pressure wheel plate, 12--right pressure wheel, 13--slide rack, 14--left pressure wheel plate, 15--left pressure wheel, 16--wrench, 1601--handle part, 1602--arc-shaped part, 1603--U-shaped groove, 17-pull rod. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Please refer to Figures 1 to 7 The utility model provides a longitudinal sealing mechanism, comprising a frame 1, a sliding frame 2 is rotatably connected to the frame 1, a movable heating seat 3, a fixed heating seat 4 and a push plate 5 are arranged on the sliding frame 2, and the movable heating seat 3 and the push plate 5 are respectively slidably connected to the sliding frame 2; a left heating block 6 is arranged on the fixed heating seat 4, and a right heating block 7 is arranged on the movable heating seat 3;

[0027] A connecting plate 8 is provided on the back of the movable heating seat 3, and the other side of the connecting plate 8 is connected to the push plate 5; a cylinder 9 is provided on the push plate 5, and an adjusting component 10 is provided on the sliding frame 2, and the adjusting component 10 is connected to the piston rod of the cylinder 9; a right pressure wheel plate 11 is provided at the bottom of the movable heating seat 3, and a pair of right pressure wheels 12 are provided on the right pressure wheel plate 11;

[0028] A slide slot frame 13 is provided on the side of the right pressure wheel plate 11, a left pressure wheel plate 14 is provided on the slide slot frame 13, and a pair of left pressure wheels 15 are provided on the left pressure wheel plate; the left pressure wheel 15 is arranged opposite to the right pressure wheel 12; a wrench 16 is provided on the side of the slide slot frame 13, and the wrench 16 is connected to the left pressure wheel plate through a pull rod 17.

[0029] In the embodiment of the utility model, the sliding frame 2 and the frame 1 are rotatably connected, so that the sliding frame 2 can change its direction by rotating to adapt to various packaging position requirements of the packaging machine. The sliding frame 2 is provided with a movable heating seat 3, a fixed heating seat 4 and a push plate 5, wherein the movable heating seat 3 and the push plate 5 can slide back and forth on the sliding frame 2, and the fixed pressing plate is fixedly arranged on the sliding frame 2; when the movable pressing plate is close to the fixed pressing plate, the right heating block 7 on the movable pressing plate is close to the left heating block 6 on the fixed pressing plate, and the two heating blocks simultaneously heat the passing packaging film at high temperature. The movable heating seat 3 and the push plate 5 are fixedly connected by a connecting plate 8, and a cylinder 9 is provided on the push plate 5, and the cylinder 9 acts on the adjustment component 10 on the sliding frame 2, thereby driving the push plate 5 to move, pushing the movable heating seat 3 to move through the connecting plate 8, and then realizing that the cylinder 9 drives the left heating block 6 and the right heating block 7 to approach or separate.

[0030] The bottom of the movable heating seat 3 is connected to the right pressure wheel plate 11, on which a pair of right pressure wheels 12 are arranged, and a slide slot frame 13 is arranged on the side of the right pressure wheel plate 11. The left pressure wheel plate 14 is arranged on the slide slot frame 13, and the position of the left pressure wheel plate 14 is controlled by using a wrench 16 and a push plate 5. The wrench 16 can be manually operated to drive the left pressure wheel plate 14 to approach or move away from the right pressure wheel plate 11 through a pull rod 17, thereby realizing the opening and closing of the entire pressure wheel part.

[0031] The working process of the utility model is as follows:

[0032] The packaging film is transported from top to bottom, passing between the left heating block 6 and the right heating block 7. After being heated, the packaging film moves downward between the left pressing wheel 15 and the right pressing wheel 12, and is squeezed by the left pressing wheel 15 and the right pressing wheel 12, thereby achieving heat-pressing sealing of the packaging film.

[0033] Preferably, the frame 1 includes a main fixed plate 101, a slide bar group 102 is provided on the main fixed plate 101, and a T-shaped plate 103 is slidably provided on the slide bar group 102; a through groove is provided on the main fixed plate 101, and the protruding end of the T-shaped plate 103 passes through the through groove and is connected to the sliding frame 2; an adjusting screw 104 is also provided on the slide bar group 102, and the adjusting screw 104 is rotatably connected to the slide bar group 102 and is threadedly connected to the T-shaped plate 103.

[0034] In the embodiment of the utility model, the main fixed plate 101 is used to connect the main structure of the packaging machine. The main fixed plate 101 is provided with a slide bar group 102, and the T-shaped plate 103 is provided on the slide bar group 102, so that the T-shaped plate 103 can slide back and forth on the slide bar group 102, and then drive the entire longitudinal sealing mechanism to slide back and forth to achieve position adjustment. In order to facilitate adjustment, the present embodiment is provided with an adjustment screw 104, and the adjustment screw 104 is threadedly connected to the T-shaped plate 103. When the adjustment screw 104 rotates, it can drive the T-shaped plate 103 to move on the slide bar group 102.

[0035] Preferably, the sliding frame 2 includes a U-shaped plate 201, an end plate 202 and a pair of linear optical axes 203 parallel to each other; the two ends of the linear optical axis 203 are respectively connected to the U-shaped plate 201 and the end plate 202; the U-shaped plate 201 is provided with a rotation groove, and the T-shaped plate 103 is rotatably connected to the rotation groove. In this embodiment, the sliding frame 2 is composed of a pair of linear optical axes 203, the U-shaped plate 201 and the end plate 202, one side of the U-shaped plate 201 is used to install the linear optical axis 203, wherein the movable heating seat 3 and the fixed heating seat 4 are installed on the linear optical axis 203, the other side of the U-shaped plate 201 is a rotation groove, and the protruding part of the T-shaped plate 103 is connected to the rotation groove.

[0036] Preferably, the T-shaped plate 103 is connected to the rotating groove via a rotating shaft; a locking handle 105 is provided on the T-shaped plate 103, and an opening 2011 is provided on the U-shaped plate 201 to cooperate with the locking handle 105. In this embodiment, after the T-shaped plate 103 and the rotating groove are connected via the rotating shaft, the entire longitudinal sealing part can be rotated around the rotating shaft as the axis, so that the longitudinal sealing mechanism can be rotated to extend or retract for maintenance or placement of packaging film. When the sliding frame 2 is rotated into place, the locking handle 105 can be rotated to lock the sliding frame 2 and the T-shaped plate 103 to form a stable connection.

[0037] Preferably, the adjustment assembly 10 includes an adjustment handwheel 1001, an adjustment screw 1002 and a rotating seat 1003; the adjustment screw 1002 is rotatably disposed on the end plate 202, the rotating seat 1003 is disposed on the piston rod of the cylinder 9, the adjustment handwheel 1001 is disposed at one end of the outer side of the adjustment screw 1002, and the other end of the adjustment screw 1002 is rotatably connected to the rotating seat 1003.

[0038] Through the above-mentioned structural design, when the adjusting hand wheel 1001 is rotated, the adjusting screw 1002 extends or retracts, thereby driving the rotating seat 1003 to move. The rotating seat 1003 acts on the piston rod of the cylinder 9, thereby driving the push plate 5 connected to the cylinder 9 and the various components connected to the push plate 5 to move, and finally realizing the position movement of the fixed heating seat 4 and the right pressure wheel plate 11 under the fixed heating seat 4 to adapt to the needs of different packaging positions.

[0039] Preferably, a digital position display is further included on the end plate 202, and the digital position display is connected to the adjusting screw 1002. By providing a digital position display and connecting the digital position display to the adjusting screw 1002, the amount of the screw 1002 being screwed in can be intuitively read, thereby improving the control accuracy of the adjusting hand wheel 1001.

[0040] Preferably, the wrench 16 includes a handle portion 1601 and an arc portion 1602, the arc portion 1602 is provided with a U-shaped groove 1603, the pull rod 17 is inserted into the U-shaped groove 1603, and is rotatably connected to the U-shaped groove 1603 through a short shaft; the pull rod 17 is sleeved with a spring, one end of the spring abuts against the slide slot frame 13, and the other end abuts against the left pressure wheel plate. In this embodiment, the wrench 16 is connected to the pull rod 17 through the U-shaped groove 1603, so that the wrench 16 can rotate with the short shaft as the axis. When the wrench 16 rotates, the advancement position of the pull rod 17 can be controlled by the arc structure on the periphery of the arc portion 1602. When the arc surface on the periphery of the arc portion 1602 that is close to the short axis contacts the slide slot frame 13, the pull rod 17 drives the left pressure wheel plate 14 to approach the right pressure wheel plate 11. At this time, the left pressure wheel 15 on the left pressure wheel plate 14 abuts against the right pressure wheel 12, and jointly compresses and seals the packaging film; when the arc surface on the periphery of the arc portion 1602 that is farther from the short axis contacts the slide slot frame 13, the pull rod 17 drives the left pressure wheel plate 14 away from the right pressure wheel plate 11. At this time, the left pressure wheel 15 on the left pressure wheel plate 14 is separated from the right pressure wheel 12 on the right pressure wheel plate 11, and the packaging film can be replaced or maintenance work can be performed.

[0041] Preferably, the cylinder 9 is a short-stroke cylinder 9 .

[0042] Compared with the prior art, the beneficial effects of the utility model are as follows: the longitudinal sealing mechanism of the utility model heats the packaging film by arranging the left heating block and the right heating block, and squeezes and seals the packaging film by the left pressure wheel and the right pressure wheel, and an adjustment component is provided to quickly adjust the sealing position to adapt to packaging films of different thicknesses, and can effectively seal the passing packaging films; the utility model has a simple overall structure, a reasonable design, a small space occupied by the mechanism, a high speed, can work continuously and uninterruptedly, and can adapt to the longitudinal sealing work of high-speed continuous packaging machines and liquid packaging machines.

[0043] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A longitudinal sealing mechanism, characterized in that: The invention comprises a frame (1), the frame being rotatably connected to a sliding frame (2), the sliding frame being provided with a movable heating seat (3), a fixed heating seat (4) and a push plate (5), the movable heating seat and the push plate being respectively slidably connected to the sliding frame; the fixed heating seat being provided with a left heating block (6), and the movable heating seat being provided with a right heating block (7); A connecting plate (8) is provided on the back of the movable heating seat, and the other side of the connecting plate is connected to the push plate; a cylinder (9) is provided on the push plate, and an adjusting component (10) is provided on the sliding frame, and the adjusting component is connected to the piston rod of the cylinder; a right pressure wheel plate (11) is provided at the bottom of the movable heating seat, and a pair of right pressure wheels (12) are provided on the right pressure wheel plate; A slide slot frame (13) is provided on the side of the right pressure wheel plate, a left pressure wheel plate (14) is provided on the slide slot frame, and a pair of left pressure wheels (15) are provided on the left pressure wheel plate; the left pressure wheels are arranged opposite to the right pressure wheels; a wrench (16) is provided on the side of the slide slot frame, and the wrench is connected to the left pressure wheel plate via a pull rod (17).

2. The longitudinal sealing mechanism according to claim 1, characterized in that: The frame comprises a main fixing plate (101), a sliding rod group (102) is provided on the main fixing plate, and a T-shaped plate (103) is slidably provided on the sliding rod group; a through slot is provided on the main fixing plate, and a protruding end of the T-shaped plate passes through the through slot and is connected to the sliding frame; an adjusting screw (104) is also provided on the sliding rod group, and the adjusting screw is rotatably connected to the sliding rod group and is threadedly connected to the T-shaped plate.

3. The longitudinal sealing mechanism according to claim 2, characterized in that: The sliding frame comprises a U-shaped plate (201), an end plate (202) and a pair of mutually parallel linear optical axes (203); the two ends of the linear optical axes are respectively connected to the U-shaped plate and the end plate; a rotation groove is provided on the U-shaped plate, and the T-shaped plate is rotatably connected to the rotation groove.

4. The longitudinal sealing mechanism according to claim 3, characterized in that: The T-shaped plate and the rotating groove are connected via a rotating shaft; a locking handle (105) is provided on the T-shaped plate, and an opening (2011) that cooperates with the locking handle is provided on the U-shaped plate.

5. The vertical sealing mechanism according to claim 3, characterized in that: The adjustment assembly comprises an adjustment hand wheel (1001), an adjustment screw rod (1002) and a rotating seat (1003); the adjustment screw rod is rotatably arranged on the end plate, the rotating seat is arranged on the piston rod of the cylinder, the adjustment hand wheel is arranged on one end of the outer side of the adjustment screw rod, and the other end of the adjustment screw rod is rotatably connected to the rotating seat.

6. The longitudinal sealing mechanism according to claim 5, characterized in that: It also includes a digital position display arranged on the end plate, and the digital position display is connected to the adjusting screw rod.

7. The vertical sealing mechanism according to claim 1, characterized in that: The wrench comprises a handle portion (1601) and an arc portion (1602), the arc portion being provided with a U-shaped groove (1603), the pull rod being inserted into the U-shaped groove and being rotatably connected to the U-shaped groove via a short shaft; the pull rod sleeve being provided with a spring, one end of the spring being in contact with the slide slot frame, and the other end being in contact with the left pressure wheel plate.

8. The vertical sealing mechanism according to claim 1, characterized in that: The cylinder is a short-stroke cylinder.

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