Heat sealing device

Abstract

The invention discloses a heat sealing device, comprising a frame, and an upper sealing mold body and a lower supporting mold body both mounted on the frame for heat sealing a formed film, wherein a cooling device for cooling the formed film is mounted on one side of the frame downstream of an assembly line. The heat sealing device has the advantages of being easy to operate and being able to timely cool the formed film after heating and forming to prevent deformation thereof during transfer.

Description

Technical Field

[0001] The invention mainly relates to the field of food and pharmaceutical packaging, and in particular to a heat sealing device. Background Art

[0002] Vaccine packaging has very high requirements for molding temperature. The heat sealing device on the market currently includes an upper sealing mold and a lower concave mold. The upper convex mold can be aligned downward and pressed on the lower concave mold. The upper sealing mold is equipped with a heating plate. The molding film gradually passes through the upper sealing mold and the lower concave mold to complete the heat sealing, and then is transferred to the downstream of the production line through a fence group used to match and guide the molding film. The molding film heat sealing process is that the cylinder drives the heated upper sealing mold to press the sealing film downward to the molding film on the lower concave mold to complete the heat sealing. Whether it is on standby or working, the molding film temperature is not controlled. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a heat sealing device which is simple to operate and can timely cool the formed film after heating and forming to prevent the film from deforming during the transfer process.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A heat sealing device comprises a frame, and an upper sealing mold body and a lower supporting mold body both mounted on the frame for heat sealing a formed film. A cooling mechanism for cooling the formed film is mounted on one side of the frame downstream of an assembly line.

[0006] As a further improvement of the above technical solution:

[0007] The cooling mechanism includes a mounting frame, a first cooling plate, and a fence group for matching and guiding the molding film, the first cooling plate is mounted on the mounting frame, and the fence group is arranged on the first cooling plate.

[0008] A water channel for cooling water to flow is provided in the first cooling plate.

[0009] The mounting frame is slidably mounted with a heat insulation board that can slide forward and backward along the production line direction. When on standby, the heat insulation board slides into between the upper sealing mold body and the molding film. When on, the heat insulation board slides out from between the upper sealing mold body and the molding film.

[0010] The mounting frame is provided with slide rails on both sides of the assembly line direction, each of the slide rails is provided with a sliding block, and the heat insulation board is provided on two of the sliding blocks.

[0011] The two ends of the heat insulation board away from the frame are respectively provided with connecting ends, one of the connecting ends is hinged to one of the sliders, and the other connecting end is detachably fixed to the other slider.

[0012] The sliding block is connected with a telescopic cylinder for driving the sliding block to slide, and the telescopic cylinder is installed on the mounting frame.

[0013] The lower supporting mold body includes an intermittent lifting pad, a second cooling plate and a lower concave mold. The intermittent lifting pad is installed on the frame, the second cooling plate is detachably clamped on the intermittent lifting pad, and the lower concave mold is installed on the second cooling plate.

[0014] A T-shaped through groove is provided in the longitudinal direction of the bottom end of the second cooling plate, and a T-shaped slide plate is matched with the sliding sleeve in the T-shaped through groove; a positioning block is installed on the intermittent lifting pad at the sliding-in terminal of the T-shaped slide plate, and a transverse slot is provided on the positioning block; a transverse block is protruded from the sliding-in terminal of the T-shaped slide plate, and the transverse block is inserted into the transverse slot; a pull plate is provided at one end of the T-shaped slide plate away from the positioning block, and a transverse groove is provided on the pull plate; a U-shaped fixing plate is detachably installed on the intermittent lifting pad, and one side wall of the U-shaped fixing plate is inserted into the transverse groove, and the other side wall thereof is connected to the bottom side of the intermittent lifting pad.

[0015] A handle is threadedly connected to the intermittent lifting pad, and a vertical through slot is provided on the U-shaped clamping plate. The handle passes through the vertical through slot to press the U-shaped clamping plate against the intermittent lifting pad.

[0016] A coolant delivery pipe is fixedly connected to one side of the second cooling plate close to the positioning block, and the coolant delivery pipe is pressed and fixed to the positioning block.

[0017] The upper sealing mold body includes a lifting and pressing platform, a heating plate and an upper punch. The lifting and pressing platform is installed on the frame, the heating plate is installed on the lifting and pressing platform, and the upper punch is slidably mounted on the heating plate and aligned with the lower concave mold.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. The heat sealing device of the present invention comprises a frame, and an upper sealing mold body and a lower supporting mold body both mounted on the frame for heat sealing a formed film. A cooling device for cooling the formed film is mounted on one side of the frame downstream of the assembly line. After the formed film is heat sealed by the mutual pressure of the upper sealing mold body and the lower supporting mold body, it is promptly cooled by the cooling device, thereby preventing the formed film at high temperature from deforming during the transfer process;

[0020] 2. The heat sealing device of the present invention can provide heat insulation protection for the formed film in the standby state through the heat insulation plate slidably mounted on the mounting frame;

[0021] 3. The second cooling plate and the lower concave mold of the heat sealing device of the present invention are clamped on the intermittent lifting pad through a T-shaped slide plate, and the U-shaped clamping plate is pressed and fixed to the second cooling plate by passing the handle through the vertical through slot of the U-shaped clamping plate, so that the disassembly and assembly are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the heat sealing device of the present invention.

[0023] Figure 2 It is a side structural schematic diagram of the heat sealing device of the present invention.

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the cooling mechanism in the heat sealing device of the present invention.

[0025] Figure 4 It is a schematic cross-sectional structural diagram of the first cooling plate in the heat sealing device of the present invention.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the lower support mold body in the heat sealing device of the present invention.

[0027] Figure 6 It is a schematic cross-sectional structural diagram of a lower support mold body in a heat sealing device of the present invention.

[0028] The symbols in the figure represent:

[0029] 1. Frame; 2. Upper sealing mold body; 21. Lifting and lowering platform; 22. Heating plate; 23. Upper punch; 3. Lower supporting mold body; 31. Intermittent lifting pad; 32. Second cooling plate; 321. Coolant delivery pipe; 33. Lower concave mold; 34. T-shaped through groove; 35. T-shaped slide plate; 351. Horizontal clamping block; 36. Positioning block; 361. Horizontal clamping groove; 37. Pull plate; 371. Horizontal groove; 38. U-shaped clamping plate; 381. Vertical through groove; 39. Handle; 4. Cooling mechanism; 41. Mounting frame; 42. First cooling plate; 421. Waterway; 43. Fence group; 44. Heat insulation board; 45. Slide rail; 46. Slider; 47. Connecting end; 48. Telescopic cylinder. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 6As shown, the heat sealing device of this embodiment includes a frame 1, and an upper sealing mold body 2 and a lower supporting mold body 3 both mounted on the frame 1 for heat-sealing a formed film. A cooling mechanism 4 for cooling the formed film is mounted on one side of the frame 1 downstream of the assembly line. In this structure, the frame 1 is mounted on one side of the assembly line downstream of the assembly line. The cooling mechanism 4 is used to cool the formed film after heating and forming. After the formed film is heat-sealed by the cooperation of the upper sealing mold body 2 and the lower supporting mold body 3, its temperature rises. If it is not cooled in time, the hot formed film is prone to deformation during further transmission. Therefore, the formed film cooled by the cooling mechanism 4 in time increases the structural stability of the formed film and improves the quality of the finished product.

[0032] In this embodiment, the cooling mechanism 4 includes a mounting frame 41, a first cooling plate 42, and a fence group 43 for matching and guiding the molding film. The mounting frame 41 is mounted on the frame 1, the first cooling plate 42 is mounted on the mounting frame 41, and the fence group 43 is arranged on the first cooling plate 42. In this structure, the first cooling plate 42 is arranged below the molding film, and the fence group 43 is arranged on the first cooling plate 42, so that the first cooling plate 42 can be timely cooled. The hot molding film is continuously cooled by the first cooling plate 42 below the fence group 43 during the process of continuously passing through the fence group 43 to be transferred downstream. The structure is simple and the design is ingenious.

[0033] In this embodiment, a water channel 421 for cooling water is provided in the first cooling plate 42. In this structure, the water channels 421 are crisscrossed in the first cooling plate 42, and the first cooling plate 42 adopts the cooling principle of circulating cooling water in the water channels 421, which is low in cost, economical and reasonable, and has a good cooling effect.

[0034] In this embodiment, the mounting frame 41 is slidably mounted with a heat insulation board 44 that can slide forward and backward along the direction of the assembly line. When in standby mode, the heat insulation board 44 slides into the space between the upper sealing mold body 2 and the molding film. When the machine is turned on, the heat insulation board 44 slides out of the space between the upper sealing mold body 2 and the molding film. In this structure, the mounting frame 41 is slidably mounted with a heat insulation board 44, so that the molding film passes through the space between the heat insulation board 44 and the fence group 43. When in standby mode, the heat insulation board 44 slides into the space between the upper sealing mold body 2 and the molding film. Due to the blocking effect of the heat insulation board 44, the heat of the upper sealing mold body 2 can be prevented from being transferred to the molding film and the sealing film below the heat insulation board 44. Therefore, in the standby state, the heat insulation protection effect of the molding film and the sealing film is played. When the machine is turned on, the heat insulation board 44 can slide out of the space between the upper sealing mold body 2 and the molding film, eliminating the blocking effect of the heat insulation board 44 on the heat of the upper sealing mold body 2, so that the upper sealing mold body 2 can resume the transfer to the molding film and the sealing film below it for heat sealing operation.

[0035] In this embodiment, the mounting frame 41 is provided with slide rails 45 on both sides in the direction of the assembly line, and a slider 46 is slidably provided on each slide rail 45, and the heat insulation board 44 is installed on two sliders 46. In this structure, the mounting frame 41 is parallel to the molding film and is located directly below the molding film, and the mounting frame 41 is wider than the molding film. The mounting frame 41 is provided with slide rails 45 on both sides in the direction of the assembly line, and the molding film passes through between the two slide rails 45. Each slide rail 45 is arranged along the direction of the assembly line, so that the slide rail 45 can slide forward and backward along the direction of the assembly line. The two slide rails 45 jointly support the heat insulation board 44, so that the heat insulation board 44 can slide into or out of the upper sealing mold body 2 and the molding film along with the two slide rails 45. The heat insulation board 44 slides through the slide rails 45, and its structure is simple and the sliding is stable.

[0036] In this embodiment, the two ends of the heat insulation board 44 away from the frame 1 are respectively provided with connecting ends 47, one connecting end 47 is hinged to a slider 46, and the other connecting end 47 is detachably fixed to the other slider 46. In this structure, the side of the heat insulation board 44 away from the frame 1 is mounted on two sliders 46, and the other side faces the frame 1, so that the end of the heat insulation board 44 close to the frame 1 can slide into or out of the upper sealing mold body 2 and the molding film along with the two sliders 46, making full use of the layout space, and the two ends of the heat insulation board 44 away from the frame 1 are respectively provided with connecting ends 47, and the heat insulation board 44 is hinged to a slider 46 by one of the connecting ends 47, and the other connecting end 47 is detachably fixed to the other slider 46, so that the heat insulation board 44 is easy to open for inspection.

[0037] In this embodiment, the slider 46 is connected to a telescopic cylinder 48 for driving the slider 46 to slide, and the telescopic cylinder 48 is installed on the mounting frame 41. In this structure, the mounting frame 41 is installed with a telescopic cylinder 48, and the telescopic cylinder 48 is used to drive the slider 46 to slide, and the slider 46 then drives the heat insulation board 44 to slide, thereby realizing the motorized sliding of the heat insulation board 44.

[0038] In this embodiment, the lower support mold body 3 includes an intermittent lifting pad 31, a second cooling plate 32 and a lower concave mold 33. The intermittent lifting pad 31 is mounted on the frame 1, the second cooling plate 32 is detachably mounted on the intermittent lifting pad 31, and the lower concave mold 33 is mounted on the second cooling plate 32. In this structure, the lower support mold body 3 includes an intermittent lifting pad 31, a second cooling plate 32 and a lower concave mold 33, wherein the intermittent lifting pad 31 can drive the second cooling plate 32 and the lower concave mold 33 thereon to intermittently lift and lower to cooperate with the upper sealing mold body 2 to realize a continuous heat sealing molding mold, and the second cooling plate 32 is detachably mounted on the intermittent lifting pad 31, which is convenient for the removal and replacement of the second cooling plate 32.

[0039] In this embodiment, a T-shaped through slot 34 is provided in the longitudinal direction at the bottom end of the second cooling plate 32, and a T-shaped slide plate 35 is matched with the sliding sleeve in the T-shaped through slot 34. A positioning block 36 is installed on the intermittent lifting pad 31 at the sliding-in terminal of the T-shaped slide plate 35, and a transverse slot 361 is provided on the positioning block 36. A transverse block 351 is protruded from the sliding-in terminal of the T-shaped slide plate 35, and the transverse block 351 is inserted into the transverse slot 361. A pull plate 37 is provided at the end of the T-shaped slide plate 35 away from the positioning block 36, and a transverse groove 371 is provided on the pull plate 37. A U-shaped fixing plate 38 is detachably installed on the intermittent lifting pad 31, and one side wall of the U-shaped fixing plate 38 is inserted into the transverse slot 371, and the other side wall is connected to the bottom side of the intermittent lifting pad 31. In this structure, a positioning block 36 is provided on the intermittent lifting pad 31. During installation, first slide the T-shaped slide plate 35 into the longitudinally arranged (i.e., perpendicular to the direction of the assembly line) T-shaped through groove 34 until the transverse block 351 at the terminal of the T-shaped slide plate 35 is inserted into the transverse groove 361. At this time, the pull plate 37 just rests against the second cooling plate 32, and then by locking the U-shaped fixing plate 38, one side wall of the U-shaped fixing plate 38 is inserted into the transverse groove 371, and the other side wall is connected to the bottom side of the intermittent lifting pad 31, thereby fixing the second cooling plate 32.

[0040] In this embodiment, a handle 39 is threadedly connected to the intermittent lifting pad 31, and a vertical through slot 381 is provided on the U-shaped clamping plate 38. The handle 39 passes through the vertical through slot 381 to press the U-shaped clamping plate 38 against the intermittent lifting pad 31. In this structure, the handle 39 is threadedly connected to the intermittent lifting pad 31. When the handle 39 is loosened, the U-shaped clamping plate 38 is inserted into the side wall of the transverse slot 371 and can be withdrawn from the transverse slot 371 of the pull plate 37. Due to the vertical through slot 381 of the U-shaped clamping plate 38, under the premise of not completely removing the handle 39, a space for the U-shaped clamping plate 38 to descend is provided to meet the requirement of sliding out the T-shaped slide plate 35 to disassemble the second cooling plate 32. Similarly, it is more convenient to slide in the T-shaped slide plate 35 to lock and install the second cooling plate 32.

[0041] In this embodiment, a coolant delivery pipe 321 is fixedly connected to one side of the second cooling plate 32 close to the positioning block 36, and the coolant delivery pipe 321 is pressed and fixed to the positioning block 36. In this structure, the second cooling plate 32 adopts the cooling principle of inputting coolant, which is low in cost and easy to operate. At the same time, the coolant is delivered to the second cooling plate 32 through the coolant delivery pipe 321. The coolant delivery pipe 321 is a steel pipe. The side of the second cooling plate 32 close to the positioning block 36 is fixed to the positioning block 36 through the coolant delivery pipe 321. The positioning block 36 is provided with a pressing groove and a locking bolt. The coolant delivery pipe 321 passes through the pressing groove of the positioning block 36 and is locked and fixed by the locking bolt.

[0042] In this embodiment, the upper sealing mold body 2 includes a lifting and pressing platform 21, a heating plate 22 and an upper punch 23. The lifting and pressing platform 21 is installed on the frame 1, the heating plate 22 is installed on the lifting and pressing platform 21, and the upper punch 23 is slidably mounted on the heating plate 22 and aligned with the lower die 33. In this structure, the heating plate 22 is used to heat the upper punch 23, and the lifting and pressing platform 21 drives the heating plate 22 and the upper punch 23 to move up and down, and the intermittent lifting and lowering movement of the lower die 33 is driven by the intermittent lifting pad 31, so that the upper punch 23 and the lower die 33 are matched and pressed to achieve heat sealing of the forming mold. The upper punch 23 is slidably mounted on the heating plate 22 for easy removal and replacement, and a locking member such as a locking bolt, a locking handle, etc. is connected between the upper punch 23 and the heating plate 22.

[0043] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A heat sealing device, characterized in that: The invention comprises a frame (1), and an upper sealing mold body (2) and a lower supporting mold body (3) both mounted on the frame (1) for heat-sealing a formed film. The frame (1) is provided with a cooling mechanism (4) for cooling the formed film on one side downstream of the assembly line. The lower supporting mold body (3) comprises an intermittent lifting pad (31), a second cooling plate (32) and a lower concave mold (33). The intermittent lifting pad (31) is mounted on the frame (1). The second cooling plate (32) is detachably mounted on the intermittent lifting pad (31). The lower concave mold (33) is mounted on the second cooling plate (32). A T-shaped through groove (34) is provided at the bottom end of the second cooling plate (32) in the longitudinal direction. A T-shaped sliding plate (35) is provided in a matching sliding sleeve in the T-shaped through groove (34). The intermittent lifting pad (31) is provided with a T-shaped sliding plate (35) on the T-shaped A positioning block (36) is installed at the sliding-in terminal of the slide plate (35), and a transverse clamping groove (361) is provided on the positioning block (36). A transverse clamping block (351) is protruded from the sliding-in terminal of the T-shaped slide plate (35), and the transverse clamping block (351) is clamped into the transverse clamping groove (361). A pull plate (37) is installed at one end of the T-shaped slide plate (35) away from the positioning block (36), and a transverse groove (371) is provided on the pull plate (37). A U-shaped clamping plate (38) is detachably installed on the intermittent lifting pad (31), and one side wall of the U-shaped clamping plate (38) is clamped into the transverse groove (371), and the other side wall thereof is clamped to the bottom side of the intermittent lifting pad (31); the upper sealing mold body (2) comprises a lifting and lowering press table (21), a heating plate (22) and an upper punch (23).

2. The heat sealing device according to claim 1, characterized in that: The cooling mechanism (4) comprises a mounting frame (41), a first cooling plate (42), and a fence group (43) for matching and guiding the molding film, wherein the mounting frame (41) is mounted on the frame (1), the first cooling plate (42) is mounted on the mounting frame (41), and the fence group (43) is arranged on the first cooling plate (42).

3. The heat sealing device according to claim 2, characterized in that: A water channel (421) for cooling water to flow is provided in the first cooling plate (42).

4. The heat sealing device according to claim 2, characterized in that: The mounting frame (41) is slidably mounted with a heat insulation board (44) that can slide forward and backward along the production line direction. When in standby mode, the heat insulation board (44) slides into between the upper sealing mold body (2) and the molding film. When the machine is turned on, the heat insulation board (44) slides out from between the upper sealing mold body (2) and the molding film.

5. The heat sealing device according to claim 4, characterized in that: The mounting frame (41) is provided with slide rails (45) on both sides in the assembly line direction, each of the slide rails (45) is provided with a sliding block (46) for sliding movement, and the heat insulation board (44) is provided on two of the sliding blocks (46).

6. The heat sealing device according to claim 5, characterized in that: The heat insulation board (44) is provided with connecting ends (47) at both ends of a side away from the frame (1), one connecting end (47) is hinged to one of the sliders (46), and the other connecting end (47) is detachably fixed to the other slider (46).

7. The heat sealing device according to claim 5, characterized in that: The sliding block (46) is connected to a telescopic cylinder (48) for driving the sliding block to slide, and the telescopic cylinder (48) is mounted on the mounting frame (41).

8. The heat sealing device according to any one of claims 1 to 7, characterized in that: A handle (39) is threadedly connected to the intermittent lifting pad (31), a vertical through slot (381) is provided on the U-shaped clamping plate (38), and the handle (39) passes through the vertical through slot (381) to press the U-shaped clamping plate (38) against the intermittent lifting pad (31).

9. The heat sealing device according to claim 8, characterized in that: A cooling liquid delivery pipe (321) is fixedly connected to a side of the second cooling plate (32) close to the positioning block (36), and the cooling liquid delivery pipe (321) is pressed and fixed to the positioning block (36).

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