Plastic uptake forming mechanism for bags and suitcases

Abstract

The utility model discloses a luggage plastic molding mechanism which comprises a bottom frame and pressing plates, the number of the pressing plates is four, the four pressing plates correspond to the four faces of the periphery of the bottom frame, the four pressing plates are arranged on the bottom frame in a swinging mode, and when the four pressing plates are in press fit with the four faces of the bottom frame, the four pressing plates define a square with the periphery closed. The four pressing plates and the bottom frame are in press fit to seal and fix the periphery of a sheet, the space occupied by swinging of the four pressing plates is small, sufficient operation space is reserved for a forming station, and compared with the background technology, the structure is more compact and simpler, and the operability of the forming station is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of luggage processing, concretely is luggage blister forming mechanism. BACKGROUND

[0002] The process of luggage blister forming is relatively mature, which is divided into a heating station and a forming station. The heating station is provided with a heating furnace, and the forming station is provided with a forming die and a pressing frame structure. A moving frame clamping a sheet moves between the forming station and the heating station. The moving frame includes an upper frame and a lower frame. The upper frame is hinged to the lower frame, and a cylinder is usually used to drive the upper frame to swing. The gas is compressible. During the blister forming, the pressing frame structure is used to press the upper frame, so that the upper frame and the lower frame are kept in a tightly compressed state for blister forming operation. Otherwise, the positive pressure of the blowing gas will cause the cylinder to retract, push the upper frame to swing upward, and then cause air leakage, resulting in failure of the blister forming. Therefore, the existing luggage blister forming mechanism has a more complex structure. At the same time, the moving frame structure and the pressing frame structure occupy the space of the forming station, leaving less space for sheet feeding and finished product taking-out operation, which limits the sheet feeding and finished product taking-out operation. SUMMARY

[0003] In view of the technical problems in the background art, the technical problem solved by the utility model is to provide a luggage blister forming mechanism with a simplified structure, small space occupation, and better compression effect.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: the luggage blister forming mechanism comprises a bottom frame and a pressing plate,

[0005] The pressing plate is provided with four pressing plates corresponding to the four faces of the bottom frame. The four pressing plates are swingably arranged on the bottom frame. When the four pressing plates are pressed against the four faces of the bottom frame, the four pressing plates form a closed square.

[0006] The four pressing plates seal and fix the sheet around the bottom frame. The space occupied by the swing of the four pressing plates is small, leaving sufficient operating space for the forming station. Compared with the background art, the structure is more compact and simplified, and the operability of the forming station is stronger.

[0007] Preferably, the four faces of the bottom frame and the pressing plate are provided with sealing strips. The sealing strips make the pressing plate and the bottom frame tightly compressed, preventing air leakage during the blister forming.

[0008] Preferably, the two ends of the pressing plate are rotatably arranged on the bottom frame through a rotating shaft. The outer side edge of the pressing plate is connected to a first transmission component that drives the pressing plate to swing. The first transmission component is installed on the bottom frame.

[0009] As preferred, the outward side of the pressing plate in horizontal state is connected with an upwardly inclined driving arm, the driving arm is connected with a first transmission component for driving the pressing plate to swing, and the first transmission component is installed on the bottom frame; the first transmission component drives the downwardly inclined driving arm to make the pressing plate swing outwardly, and the first transmission component drives the upwardly inclined driving arm to make the pressing plate swing inwardly and press against the bottom frame. The upwardly inclined driving arm swings at a larger angle relative to the driving arm in horizontal state, so that the pressing plate swings at a larger angle, and the feeding and taking work is fully accommodated.

[0010] As preferred, the first transmission component is arranged at the lower part of the molding station; the first transmission component comprises a linear electric cylinder, a lifting seat, a connecting rod and a guide column, the linear electric cylinder and the guide column are installed on the bottom frame, the lifting seat is connected with the screw rod of the linear electric cylinder, the two ends of the connecting rod are respectively connected with the pressing plate and the lifting seat, and the linear electric cylinder drives the lifting seat to lift along the guide column. During the vacuum molding, the linear electric cylinder has self-locking function, so as to avoid back-off and achieve good pressing effect, and no additional component is needed to press, so that the upper operation space of the molding station is large.

[0011] As preferred, the first transmission component is arranged in two groups, one group of the first transmission component drives two adjacent pressing plates to swing; the two adjacent pressing plates are respectively a first pressing plate and a second pressing plate, the connecting rod is divided into a first connecting rod and a second connecting rod, the first connecting rod is connected with the first pressing plate, the second connecting rod is arranged in two groups and arranged at the two ends of the lifting seat, and the second connecting rod is connected with the second pressing plate. Two pressing plates share one first transmission component, so that the structure is more compact and the equipment cost is lower.

[0012] As preferred, the luggage vacuum molding mechanism further comprises a rack and a driving component for driving the bottom frame to move between the molding station and the heating station.

[0013] As preferred, the driving component comprises a screw rod, a nut and a motor, the screw rod is installed on the rack and connected with the motor,

[0014] The rack is provided with a linear guide rail, a sliding block is arranged on the linear guide rail in a sliding mode, and the sliding block and the nut are installed on the bottom frame.

[0015] As preferred, the molding station is provided with an air chamber, and the bottom frame is connected with a second transmission component for driving the bottom frame to lift relative to the air chamber.

[0016] During the vacuum molding, the second transmission component drives the bottom frame to move downward, and the bottom frame is tightly pressed against the air chamber.

[0017] As preferred, the second transmission component comprises a pressing element, a power element for driving the pressing element to lift and a reset assembly for driving the bottom frame to reset, the power element is installed on the rack, and the pressing element is arranged above the outer edge of the bottom frame and can act on the outer edge of the bottom frame.

[0018] The reset assembly comprises a column, a spring and a guide sleeve matched with the column, the column is installed on the sliding block, the guide sleeve is installed on the bottom frame and is sleeved outside the column, and the spring is sleeved outside the column and is arranged between the guide sleeve and the sliding block.

[0019] During the vacuum forming operation, the power member drives the lower pressing member to move downward, the lower pressing member pushes the bottom frame to move downward and is sealingly pressed with the air chamber; after the vacuum forming is completed, the power member drives the lower pressing member to move upward, and the spring pushes the bottom frame to move upward and reset. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front view of the utility model.

[0021] Figure 2 It is a three-dimensional schematic diagram of the utility model. Figure 1 .

[0022] Figure 3 It is a three-dimensional schematic diagram of the utility model. Figure 2 .

[0023] Figure 4 It is a schematic diagram of the utility model when the pressing plate is pressed with the bottom frame.

[0024] Figure 5 It is a schematic diagram of the utility model when the pressing plate is opened.

[0025] Figure 6 It is a front view of the utility model. Figure 2 A is an enlarged view.

[0026] The drawings show that the utility model discloses a sheet forming device, which comprises a forming mechanism, a heating station, a forming station, a mechanical arm, an air chamber, a bottom frame, a pressing plate, a sliding block and a power member. DETAILED DESCRIPTION

[0027] The embodiments and examples of the utility model are described below in combination with the drawings.

[0028] The box blister forming mechanism 3 comprises a bottom frame 32 and a pressing plate 31. The middle of the bottom frame is empty, usually square. The pressing plate 31 is provided with four pieces, which correspond to the four sides of the bottom frame 32. The four pressing plates 31 are swingably arranged on the bottom frame 32. When the four pressing plates 31 are pressed against the four sides of the bottom frame 32, the four pressing plates 31 form a closed square. The square formed by the pressing plate 31 corresponds to the square of the bottom frame 32, allowing the sheet 4 to be heated and then inflated upward, and the forming mold to give way. When loading, the four pressing plates 31 swing outward to give way to loading. The sheet 4 is placed on the bottom frame 32, and the four sides of the bottom frame 32 support the sheet 4. The four pressing plates 31 swing in the opposite direction and are pressed against the four sides of the bottom frame 32 to seal and fix the sheet 4. To improve the sealing performance, the four sides of the bottom frame and the pressing plate are provided with sealing strips to improve the sealing performance when the pressing plate is pressed against the bottom frame, preventing air leakage during blister forming. The space occupied by the four pressing plates 31 is small, leaving sufficient operating space for the forming station 1, which is more compact and simplified compared to the background art, making the forming station 1 more operable.

[0029] The two ends of the pressing plate 31 are rotatably arranged on the bottom frame 32 through a rotating shaft. The outer side of the pressing plate 31 is connected to the first transmission member 33 that drives it to swing. The first transmission member is installed on the bottom frame. To make the angle of the pressing plate 31 swing larger and give sufficient space for sheet 4 loading and finished product taking, the outer side of the pressing plate 31 in the horizontal state is connected to an upwardly inclined driving arm 35. The driving arm 35 is connected to the first transmission member 33 that drives the pressing plate 31 to swing. When the pressing plate 31 is pressed against the bottom frame 32, it is close to the horizontal state. At this time, the driving arm 35 is inclined upward relative to the horizontal plane. The first transmission member pulls the driving arm downward to make the pressing plate swing outward. The driving arm 35 is inclined upward, and the angle of the driving arm 35 swinging relative to the horizontal state is larger, making the angle of the pressing plate 31 rotating larger, thereby giving sufficient space for sheet 4 loading and finished product taking. The first transmission member pushes the driving arm upward to make the pressing plate swing inward and press against the bottom frame. The first transmission member does not occupy the position above the bottom frame, making the upper operating space of the forming station larger. The sheet 4 loading and finished product taking are more operable, and a mechanical hand 5 can be used to load or take the material into the forming station.

[0030] The first transmission component 33 comprises a linear motor cylinder 331, a lifting seat 332, a connecting rod and a guide column 333. The linear motor cylinder 331 and the guide column 333 are installed on the bottom frame 32. The lifting seat 332 is connected with a screw rod of the linear motor cylinder 331. Two ends of the connecting rod are respectively rotationally connected with the pressing plate 31 and the lifting seat 332. The linear motor cylinder 331 drives the lifting seat 332 to ascend and descend along the guide column 333. When the vacuum forming is performed, the linear motor cylinder 331 has a self-locking function to avoid back-off, and has a good pressing effect. In addition, no additional component is needed to press, so that the upper part of the forming station 1 is not blocked.

[0031] In order to reduce the cost, the first transmission component 33 is provided with two groups. One group of the first transmission component 33 drives two adjacent pressing plates 31 to swing. See FIG. 2. Figure 4 and 5 The two adjacent pressing plates 31 sharing one group of the first transmission component 33 are a first pressing plate 31131 and a second pressing plate 31231. The connecting rod is divided into a first connecting rod 334 and a second connecting rod 335. The first connecting rod 334 is rotationally connected with the first pressing plate 31131. The second connecting rod 335 is provided with two second connecting rods 335, which are respectively arranged at two ends of the lifting seat 332. The second connecting rod 335 is rotationally connected with the second pressing plate 31231. Two pressing plates 31 share one first transmission component 33. When the linear motor cylinder 331 drives the lifting seat 332 to ascend along the guide column 333, the first pressing plate 31131 and the second pressing plate 31231 are respectively driven by the first connecting rod 334 and the second connecting rod 335 to rotate towards the inner periphery of the bottom frame 32 until the pressing plate 31 is pressed against the surface of the bottom frame 32. When the linear motor cylinder 331 drives the lifting seat 332 to descend, the first pressing plate 31131 and the second pressing plate 31231 rotate towards the outer periphery of the bottom frame 32.

[0032] Therefore, the luggage vacuum forming mechanism further comprises a rack and a driving component 34 for driving the bottom frame 32 to move between the forming station 1 and the heating station 2. The driving component 34 can adopt a pneumatic cylinder. In order to ensure the accuracy and stability of the movement, the driving component 34 comprises a screw rod 343, a nut 342 and a motor 341. The screw rod 343 is installed on the rack and connected with the motor 341. A linear guide rail 344 is arranged on the rack. A sliding block 345 is slidably arranged on the linear guide rail 344. The sliding block 345 and the nut 342 are installed on the bottom frame 32.

[0033] The forming station is provided with an air chamber 37, and the bottom frame 32 is driven by a second transmission component 36 to move up and down relative to the air chamber. During the vacuum forming, the second transmission component drives the bottom frame 32 to move downward, and the bottom frame is tightly pressed with the air chamber 37. The second transmission component 36 comprises a pressing member 362, a power member 361 driving the pressing member to move up and down, and a reset assembly 363 driving the bottom frame to reset. The power member is installed on the frame and below the bottom frame. The pressing member 362 is arranged above the outer edge 321 of the bottom frame and can act on the outer edge of the bottom frame. The reset assembly 363 comprises a column 3631, a spring 3632, and a guide sleeve 3633 matched with the column 3631. The column 3631 is installed on the sliding block 345. The guide sleeve 3633 is installed on the bottom frame 32 and is sleeved on the outside of the column 3631. The spring 3632 is sleeved on the outside of the column 3631 and is arranged between the guide sleeve 3633 and the sliding block 345. During the vacuum forming, the pressing plate 31 swings and is tightly pressed with the bottom frame 32. The power member drives the pressing member to move downward. The pressing member 362 pushes the outer edge of the bottom frame to move the bottom frame downward and tightly press with the air chamber 37. At this time, the spring is compressed. After the vacuum forming is completed, the power member drives the pressing member 362 to move upward. The elastic force of the spring pushes the bottom frame to move upward and reset. The second transmission component and the bottom frame are movably connected. They do not affect the movement of the bottom frame, and the bottom frame can be tightly pressed with the air chamber in the forming station.

Claims

1. A luggage blister forming mechanism, characterized by: Includes a base frame and pressure plate. The pressure plate is provided in four pieces, which correspond to the four sides of the bottom frame. The four pressure plates are swayed and set on the bottom frame. When the four pressure plates are pressed against the four sides of the bottom frame, the four pressure plates form a square that is closed on all four sides.

2. The luggage insert molding mechanism of claim 1, wherein: The four sides of the bottom frame that are pressed together with the pressure plate are equipped with sealing strips.

3. The luggage insert molding mechanism of claim 1, wherein: The two ends of the pressure plate are rotatably mounted on the base frame via a rotating shaft. The outward-facing side of the pressure plate is connected to a first transmission component that drives its swinging motion. The first transmission component is mounted on the base frame.

4. The luggage insert molding mechanism of claim 1, wherein: The pressure plate is horizontal and its outward-facing side is connected to an upward-inclined drive arm. The drive arm is connected to a first transmission component that drives the pressure plate to swing. The first transmission component is mounted on the bottom frame. The first transmission component pulls down the drive arm to make the pressure plate swing outward, and the first transmission component pushes the drive arm upward to make the pressure plate swing inward and press against the bottom frame.

5. The luggage insert molding mechanism according to claim 3 or 4, characterized in that: The first transmission component includes a linear electric cylinder, a lifting seat, a connecting rod, and a guide column. The linear electric cylinder and the guide column are mounted on the base frame. The lifting seat is connected to the lead screw of the linear electric cylinder. The two ends of the connecting rod are rotatably connected to the pressure plate and the lifting seat, respectively. The linear electric cylinder drives the lifting seat to move up and down along the guide column.

6. The luggage insert plastic forming mechanism of claim 5, wherein: The first transmission component is provided in two sets, and one set of the first transmission component drives two adjacent pressure plates to swing. The two adjacent pressure plates are the first pressure plate and the second pressure plate, respectively. The connecting rod is divided into a first connecting rod and a second connecting rod. The first connecting rod is rotatably connected to the first pressure plate. The second connecting rod has two rods, which are respectively set at both ends of the lifting seat. The second connecting rod is rotatably connected to the second pressure plate.

7. The luggage insert plastic molding mechanism of claim 1, wherein: Therefore, the bag vacuum forming mechanism also includes a frame and a drive component that moves the base frame between the forming station and the heating station.

8. The luggage insert plastic forming mechanism of claim 7, wherein: The driving component includes a screw, a nut, and a motor. The screw is mounted on the frame and connected to the motor. The frame is equipped with a linear guide rail, and a slider is slidably mounted on the linear guide rail. The slider and nut are mounted on the base frame.

9. The luggage insert plastic forming mechanism of claim 8, wherein: The forming station is equipped with an air chamber, and the bottom frame is connected to a second transmission component that drives it to rise and fall relative to the air chamber. During vacuum forming, the second transmission component drives the bottom frame to move downward, and the bottom frame is sealed and pressed together with the air chamber.

10. The luggage insert plastic forming mechanism of claim 9, wherein: The second transmission component includes a pressing component, a power component for driving the pressing component to rise and fall, and a reset component for driving the bottom frame to reset. The power component is mounted on the frame, and the pressing component is located above the outer edge of the bottom frame and can act on the outer edge of the bottom frame. The reset assembly includes a column, a spring, and a guide sleeve that matches the column. The column is mounted on the slider, the guide sleeve is mounted on the bottom frame and sleeved outside the column, and the spring is sleeved outside the column and disposed between the guide sleeve and the slider.

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