Blister packaging device

Abstract

The utility model belongs to the technical field of blister packaging, and particularly relates to a blister packaging device which comprises a body, the surface of the body is rotationally connected with a rotating disc through a motor, the surface of the body is connected with a pressing plate in an up-down sliding mode through a hydraulic device, the surface of the rotating disc is fixedly connected with a set of bases, and mounting grooves are formed in the surfaces of the bases. A cavity is formed in the base, a through hole is formed in the surface of the base, the through hole communicates with the cavity, a sliding shaft is slidably connected into the cavity through an elastic piece, and through the structural design of the sliding shaft and an elastic block, after heat sealing of a blister shell is completed, a pressing plate moves upwards, meanwhile, the sliding shaft is driven by the elastic piece to move upwards, and meanwhile the blister shell is driven to pop out. And the problem that the finished product is torn when the finished product is taken down due to the fact that the plastic packaging shell is possibly heated to expand and is clamped in the base, and then the finished product is scrapped is solved, and the rate of finished products is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of blister packaging, in particular to a blister packaging device. Background Art

[0002] The blister packaging device, also known as a blister packaging sealing machine, is mainly used for the heat-sealing packaging of blister shells and paper cards. It uses the pulse heating principle to select different current outputs and energization times according to the heat-sealing area, and then completes the heat-sealing packaging under the condition of cooling and pressurization. It has the characteristics of transparency, beauty, and fast packaging speed. It adopts the principle of adjustable electric heating to complete the heat-sealing of the blister and the cardboard.

[0003] When the traditional blister packaging machine is in use, after the blister shell and the cardboard to be heat-sealed are both placed on the base for heat-sealing, the plastic packaging shell may expand due to heat and get stuck in the base. This may cause it to be torn when the staff removes the finished product, resulting in the scrapping of the finished product. Therefore, a blister packaging device is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the deficiencies of the prior art, when the traditional blister packaging machine is in use, after the blister shell and the cardboard to be heat-sealed are both placed on the base for heat-sealing, the plastic packaging shell may expand due to heat and get stuck in the base. This may cause it to be torn when the staff removes the finished product, resulting in the scrapping of the finished product. The utility model proposes a blister packaging device.

[0005] The technical solution adopted by the present utility model to solve its technical problems is as follows: A blister packaging device of the present utility model includes a main body. A turntable is rotationally connected to the surface of the main body through a motor, and a pressing plate is slidably connected up and down to the surface of the main body through a hydraulic device. A group of bases are fixedly connected to the surface of the turntable. An installation groove is formed in the surface of the base, a cavity is formed in the base, a through hole is formed in the surface of the base, and the through hole communicates with the cavity. A sliding shaft is slidably connected in the cavity through an elastic member. The other end of the sliding shaft penetrates through the through hole, and a pressing strip is fixedly connected to the end. There are two sliding shafts, and a pair of the sliding shafts are symmetrically distributed with respect to the central axis of the installation groove. The distance between two mutually adjacent sides of the pressing strip is greater than the width of the installation groove. Place the blister shell in the installation groove so that the skirt of the blister shell is placed above the pressing strip. Then, after placing the cardboard to be heat-sealed above the blister shell, start the blister sealing machine main body to make the pressing plate move downward. When the pressing plate moves to the position of the pressing strip, it will cause the pressing strip to move downward, and at the same time drive the sliding shaft to move downward and compress the elastic member to generate an elastic force. After the blister shell is heat-sealed, the pressing plate moves upward, and at the same time the sliding shaft moves upward under the drive of the elastic member, and at the same time drives the blister shell to pop out, which is convenient for the staff to take. It avoids the problem that the plastic packaging shell may expand due to heat and get stuck in the base, which may cause it to be torn when the staff removes the finished product, thereby resulting in the scrapping of the finished product, and thus improves the yield rate.

[0006] Preferably, the elastic member is a hollow elastic block. A through groove is formed on one side of the cavity, and an elastic membrane is fixedly connected in the through groove. The elastic membrane is made of rubber material. When the elastic member is pressed, it will protrude towards the through groove direction, and at the same time squeeze the elastic membrane to protrude, so that the elastic membrane squeezes the blister shell, further fixing the blister shell to avoid random shaking of the blister shell during heat-sealing, resulting in deviation.

[0007] Preferably, the sliding shaft is divided into a large-diameter shaft, a small-diameter shaft and a limiting shaft, and the large-diameter shaft, the small-diameter shaft and the limiting shaft are all slidably connected in the through hole. The large-diameter shaft is fixedly connected with the pressing strip. One end of the large-diameter shaft away from the pressing strip is fixedly connected with a small-diameter shaft. The outer wall of the small-diameter shaft is slidably connected with a limiting shaft. The maximum diameter of the large-diameter shaft is the same as that of the limiting shaft. The maximum diameter of the small-diameter shaft is smaller than the inner diameter of the limiting shaft. A spring is fixedly connected inside the limiting shaft. The other end of the spring is fixedly connected to the surface of the large-diameter shaft. A elastic piece is fixedly connected to the surface of the limiting shaft. A notch is provided on the side wall of the through hole at the position corresponding to the elastic piece. When the pressing plate presses the pressing strip downward, the pressing strip will drive the large-diameter shaft to slide. At the same time, the large-diameter shaft drives the small-diameter shaft to compress the spring to generate elastic force. Since the resistance generated by the elastic piece is greater than that of the spring, the limiting shaft will not move downward at this time. When the large-diameter shaft drives the small-diameter shaft so that the small-diameter shaft fits against the inner wall of the limiting shaft and continues to be pressed, the small-diameter shaft pushes the limiting shaft out. At this time, the pressing strip completely fits against the surface of the base, and at the same time, the elastic film will protrude under the pressure of the elastic block. The limiting effect can be achieved through the elastic piece. After the plastic shell completely falls into the installation groove, the elastic film protrudes again, which can ensure the stability of the installation of the plastic shell.

[0008] Preferably, one end of the limiting shaft passing through the through hole is fixedly connected with a squeezing plate. The elastic piece is in a "C" shape, and one end of the elastic piece close to the squeezing plate is a free end. The elastic piece with a free end can make the resistance suffered by the limiting shaft different when sliding up and down. The side where the free end is set has a greater pressure when the limiting shaft slides than the pressure suffered by the fixed end when resetting. Furthermore, the resistance when the limiting shaft is reset driven by the elastic block can be reduced. The squeezing plate can increase the contact area when the limiting plate contacts the elastic block, so that the elastic block can generate deformation better.

[0009] Preferably, an inner cavity is provided in the base. A push plate is slidably connected in the inner cavity. A top shaft is fixedly connected to the surface of the push plate. The other end of the top shaft passes through the inner cavity and is slidably connected through a spring. An air outlet is provided on one side of the inner cavity. When the pressing strip moves downward, it will squeeze the top shaft, so that the top shaft drives the push plate to move downward, and the gas in the inner cavity is blown out through the air outlet to clean the surface of the elastic film, avoiding dust adsorption on the surface and damaging the outer wall of the plastic shell.

[0010] Preferably, the air outlet is arc-shaped. A rubber pad is fixedly connected to the side of the push plate away from the top shaft. The arc-shaped air outlet can make the gas blow better towards the elastic film. The rubber pad can improve the sealing performance between the push plate and the side wall of the inner cavity.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. Through the structural design of the sliding shaft and the elastic block, after the thermoforming of the blister shell is completed, the pressing plate moves upward. At the same time, the sliding shaft moves upward driven by the elastic member, and will drive the blister shell to pop out, which is convenient for the staff to take. This avoids the problem that the plastic packaging shell may expand due to heat and get stuck in the base, which may cause it to be torn when the staff removes the finished product, resulting in the scrapping of the finished product, thereby improving the yield rate.

[0013] 2. Through the design of the inner cavity and the push plate, when the pressure strip moves downward, it will squeeze the top shaft, causing the top shaft to drive the push plate to move downward, so that the gas in the inner cavity is blown out through the air outlet holes to clean the surface of the elastic membrane, avoiding dust adsorption on the surface and damaging the outer wall of the blister shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 Schematic diagram of the body structure of Embodiment 1;

[0016] Figure 2 Schematic diagram of the base structure of Embodiment 1;

[0017] Figure 3 Schematic diagram of the partial sectional structure of the base of Embodiment 1;

[0018] Figure 4 For Embodiment 1 Figure 3 Schematic diagram of the structure at position A;

[0019] Figure 5 Schematic diagram of the structure of the inner cavity of Embodiment 2.

[0020] In the figure: 1, body; 2, turntable; 3, base; 4, pressing plate; 5, installation groove; 6, pressure strip; 7, sliding shaft; 8, elastic membrane; 9, through groove; 10, extrusion plate; 11, elastic block; 12, cavity; 13, notch; 14, elastic sheet; 15, small-diameter shaft; 16, limiting shaft; 17, large-diameter shaft; 18, spring; 19, through hole; 20, top shaft; 21, air outlet hole; 22, push plate; 23, inner cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0022] Embodiment 1

[0023] Please refer to Figures 1-4 As shown, a blister packaging device includes a main body 1. A turntable 2 is rotatably connected to the surface of the main body 1 through a motor. A pressing plate 4 is slidably connected up and down to the surface of the main body 1 through a hydraulic device. A group of bases 3 are fixedly connected to the surface of the turntable 2. An installation groove 5 is formed on the surface of the base 3. A cavity 12 is formed inside the base 3. A through hole 19 is formed on the surface of the base 3. The through hole 19 communicates with the cavity 12. A sliding shaft 7 is slidably connected to the cavity 12 through an elastic member. The other end of the sliding shaft 7 passes through the through hole 19, and a pressing strip 6 is fixedly connected to the end. There are two sliding shafts 7, and a pair of the sliding shafts 7 are symmetrically distributed with respect to the central axis of the installation groove 5. The distance between two mutually adjacent sides of the pressing strip 6 is greater than the width of the installation groove 5. During operation, the blister shell is placed in the installation groove 5, so that the skirt of the blister shell is placed above the pressing strip 6. Then, after placing the cardboard to be heat-sealed above the blister shell, the blister sealing machine main body 1 is started, so that the pressing plate 4 moves downward. When the pressing plate 4 moves to the position of the pressing strip 6, the pressing strip 6 will move downward, and at the same time, it will drive the sliding shaft 7 to move downward and compress the elastic member to generate an elastic force. After the blister shell is heat-sealed, the pressing plate 4 moves upward, and at the same time, the sliding shaft 7 moves upward under the drive of the elastic member, and at the same time, it will drive the blister shell to pop out, which is convenient for the staff to take. This avoids the problem that the plastic packaging shell may expand due to heat and get stuck in the base 3, which may cause the finished product to be torn when the staff removes it, and thus the finished product is scrapped. Therefore, the yield rate is improved.

[0024] The elastic member is a hollow elastic block 11. A through groove 9 is formed on one side of the cavity 12. An elastic membrane 8 is fixedly connected to the through groove 9. The elastic membrane 8 is made of rubber material. During operation, when the elastic member is pressed, it will bulge towards the through groove 9, and at the same time, it will squeeze the elastic membrane 8 to bulge, so that the elastic membrane 8 squeezes the blister shell, further fixing the blister shell, and avoiding the blister shell from shaking randomly during heat-sealing, resulting in deviation.

[0025] The sliding shaft 7 is divided into a large-diameter shaft 17, a small-diameter shaft 15, and a limiting shaft 16. The large-diameter shaft 17, the small-diameter shaft 15, and the limiting shaft 16 are all slidably connected within the through-hole 19. The large-diameter shaft 17 is fixedly connected to the pressure strip 6. One end of the large-diameter shaft 17 away from the pressure strip 6 is fixedly connected to the small-diameter shaft 15. The outer wall of the small-diameter shaft 15 is slidably connected to the limiting shaft 16. The maximum diameter of the large-diameter shaft 17 is the same as that of the limiting shaft 16. The maximum diameter of the small-diameter shaft 15 is smaller than the inner diameter of the limiting shaft 16. A spring 18 is fixedly connected within the limiting shaft 16. The other end of the spring 18 is fixedly connected to the surface of the large-diameter shaft 17. A spring piece 14 is fixedly connected to the surface of the limiting shaft 16. A notch 13 is formed in the side wall of the through-hole 19 at a position corresponding to the spring piece 14. During operation, when the pressing plate 4 presses the pressure strip 6 downward, the pressure strip 6 drives the large-diameter shaft 17 to slide. At the same time, the large-diameter shaft 17 drives the small-diameter shaft 15 to compress the spring 18 to generate elastic force. Since the resistance generated by the spring piece 14 is greater than that of the spring 18, the limiting shaft 16 does not move downward at this time. When the large-diameter shaft 17 drives the small-diameter shaft 15 so that the small-diameter shaft 15 fits against the inner wall of the limiting shaft 16, and continues to be pressed, the small-diameter shaft 15 pushes the limiting shaft 16 out. At this time, the pressure strip 6 completely fits against the surface of the base 3, and at the same time, the elastic film 8 will protrude under the pressure of the elastic block 11. The limiting effect can be achieved through the spring piece 14. After the plastic shell completely falls into the installation groove 5, the elastic film 8 protrudes again, which can ensure the stability of the installation of the plastic shell.

[0026] One end of the limiting shaft 16 passing through the through-hole 19 is fixedly connected with a squeezing plate 10. The spring piece 14 is in a "C" shape, and one end of the spring piece 14 close to the squeezing plate 10 is a free end. During operation, the spring piece 14 with one end being a free end can make the resistance received by the limiting shaft 16 different when sliding up and down. The side where the free end is set receives greater pressure when the limiting shaft 16 slides than the pressure received when the fixed end resets. Furthermore, the resistance when the limiting shaft 16 resets driven by the elastic block 11 can be reduced. The squeezing plate 10 can increase the contact area when the limiting plate contacts the elastic block 11, so that the elastic block 11 can generate deformation better.

[0027] Embodiment 2

[0028] Please refer to Figure 5 As shown, compared with Embodiment 1, as another implementation manner of the present invention, an inner cavity 23 is provided in the base 3. A push plate 22 is slidably connected within the inner cavity 23. A top shaft 20 is fixedly connected to the surface of the push plate 22. The other end of the top shaft 20 passes through the inner cavity 23 and is slidably connected through the spring 18. An air outlet hole 21 is provided on one side of the inner cavity 23. During operation, when the pressure strip 6 moves downward, it will squeeze the top shaft 20, so that the top shaft 20 drives the push plate 22 to move downward, and the gas in the inner cavity 23 is blown out through the air outlet hole 21 to clean the surface of the elastic film 8, avoiding dust adsorption on the surface and damaging the outer wall of the plastic shell.

[0029] The air outlet hole 21 is arc-shaped, and a rubber pad is fixedly connected to the side of the push plate 22 away from the top shaft 20; during operation, the arc-shaped air outlet hole 21 can make the gas blow better towards the elastic membrane 8, and the rubber pad can improve the sealing performance between the push plate 22 and the inner cavity 23 side wall.

[0030] Working principle: Place the blister shell in the installation groove 5, place the skirt of the blister shell above the pressure strip 6, and then place the cardboard to be heat-sealed above the blister shell. Then start the blister sealing machine body 1 to make the pressure plate 4 move downward. When the pressure plate 4 moves to the position of the pressure strip 6, the pressure strip 6 will move downward, and at the same time, it will drive the sliding shaft 7 to move downward and compress the elastic member to generate elastic force. After the blister shell is heat-sealed, the pressure plate 4 moves upward, and at the same time, the sliding shaft 7 moves upward under the drive of the elastic member, and at the same time, it will drive the blister shell to pop out, which is convenient for the staff to take. This avoids the problem that the plastic packaging shell may expand due to heat and get stuck in the base 3, which may cause it to be torn when the staff removes the finished product, resulting in the scrapping of the finished product, thereby improving the finished product rate;

[0031] When the elastic member is compressed, it will protrude towards the through groove 9, and at the same time, it will squeeze the elastic membrane 8 to protrude, so that the elastic membrane 8 squeezes the blister shell to further fix the blister shell, avoiding random shaking of the blister shell during heat-sealing, resulting in deviation. When the pressure plate 4 presses the pressure strip 6 downward, the pressure strip 6 will drive the large-diameter shaft 17 to slide, and at the same time, the large-diameter shaft 17 drives the small-diameter shaft 15 to squeeze the spring 18 to generate elastic force. Since the resistance generated by the elastic piece 14 is greater than that of the spring 18, the limit shaft 16 will not move downward at this time. When the large-diameter shaft 17 drives the small-diameter shaft 15 so that the small-diameter shaft 15 fits against the inner wall of the limit shaft 16 and continues to be squeezed, the small-diameter shaft 15 will push out the limit shaft 16. At this time, the pressure strip 6 completely fits the surface of the base 3, and at the same time, the elastic membrane 8 will protrude under the pressure of the elastic block 11. The limit effect can be achieved through the elastic piece 14. After the blister shell completely falls into the installation groove 5, the elastic membrane 8 protrudes again, which can ensure the stability of the blister shell installation;

[0032] When the pressure strip 6 moves downward, it will squeeze the top shaft 20, so that the top shaft 20 drives the push plate 22 to move downward, so that the gas in the inner cavity 23 is blown out through the air outlet hole 21 to clean the surface of the elastic membrane 8, avoiding dust adsorption on the surface and damaging the outer wall of the blister shell.

[0033] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A blister packaging device, characterized in that: It includes a main body (1). A turntable (2) is rotatably connected to the surface of the main body (1) by a motor. A pressing plate (4) is slidably connected to the surface of the main body (1) up and down by a hydraulic device. A group of bases (3) are fixedly connected to the surface of the turntable (2). An installation groove (5) is formed on the surface of the base (3). A cavity (12) is formed inside the base (3). A through hole (19) is formed on the surface of the base (3). The through hole (19) communicates with the cavity (12). A sliding shaft (7) is slidably connected to the cavity (12) by an elastic member. The other end of the sliding shaft (7) penetrates through the through hole (19), and a pressing strip (6) is fixedly connected to the end. There are two sliding shafts (7), and a pair of the sliding shafts (7) are symmetrically distributed with respect to the central axis of the installation groove (5). The distance between two mutually adjacent sides of the pressing strip (6) is greater than the width of the installation groove (5).

2. The blister packaging device according to claim 1, wherein: The elastic member is a hollow elastic block (11). A through groove (9) is formed on one side of the cavity (12). An elastic membrane (8) is fixedly connected inside the through groove (9). The elastic membrane (8) is made of rubber material.

3. The blister packaging device according to claim 2, characterized in that: The sliding shaft (7) is divided into a large-diameter shaft (17), a small-diameter shaft (15), and a limiting shaft (16). The large-diameter shaft (17), the small-diameter shaft (15), and the limiting shaft (16) are all slidably connected inside the through hole (19). The large-diameter shaft (17) is fixedly connected to the pressing strip (6). A small-diameter shaft (15) is fixedly connected to the end of the large-diameter shaft (17) away from the pressing strip (6). The outer wall of the small-diameter shaft (15) is slidably connected to the limiting shaft (16). The maximum diameter of the large-diameter shaft (17) is the same as that of the limiting shaft (16). The maximum diameter of the small-diameter shaft (15) is smaller than the inner diameter of the limiting shaft (16). A spring (18) is fixedly connected inside the limiting shaft (16). The other end of the spring (18) is fixedly connected to the surface of the large-diameter shaft (17).

4. The blister packaging device according to claim 3, wherein: A spring piece (14) is fixedly connected to the surface of the limiting shaft (16). A notch (13) is formed on the side wall of the through hole (19) at a position corresponding to the spring piece (14).

5. The blister packaging device according to claim 4, characterized in that: A squeezing plate (10) is fixedly connected to the end of the limiting shaft (16) penetrating through the through hole (19). The spring piece (14) is in a "C" shape, and the end of the spring piece (14) close to the squeezing plate (10) is a free end.

6. The blister packaging device according to claim 5, wherein: An inner cavity (23) is formed inside the base (3). A push plate (22) is slidably connected inside the inner cavity (23). A top shaft (20) is fixedly connected to the surface of the push plate (22). The other end of the top shaft (20) penetrates through the inner cavity (23) and is slidably connected by a spring (18). An air outlet hole (21) is formed on one side of the inner cavity (23).

7. An absorbent plastic packaging device according to claim 6, characterized in that: The air outlet hole (21) is arc-shaped. A rubber pad is fixedly connected to the side of the push plate (22) away from the top shaft (20).

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