Automatic box filling machine for tubular products

Abstract

The utility model discloses an automatic casing machine for tubular products, which relates to the technical field of casing machines and comprises a frame, a feeding device for conveying products is mounted on the frame, and a stacking device for arraying the products is mounted at the output end of the feeding device. The carton body positioning device is installed in the discharging direction of the stacking device and used for storing folded cartons, the stacking device comprises a product hopper, a material receiving groove and a material pushing assembly, the material receiving groove is formed below the product hopper, the material pushing assembly is arranged behind the material receiving groove, and a lifting adjusting assembly is installed at the bottom of the material receiving groove. According to the automatic stacking device for the tubular products, the lifting adjusting assembly drives the material receiving groove to ascend, after the opening and closing plate is opened, the whole column of tubular products fall into the material receiving groove, then the material receiving groove descends by one station of the tubular products, and the automatic stacking operation of the tubular products is completed; and automatic arraying and stacking work of the products is completed, and high practicability is achieved.

Description

Technical Field

[0001] This utility model relates to the field of case packing machine technology, and in particular to an automatic case packing machine for tubular products. Background Technology

[0002] In the process of moving and circulating tubular items, packaging is carried out to a certain extent to facilitate transportation or prevent damage. Packaging also serves to beautify the goods, attract customers and promote sales, and facilitate storage and counting. Currently, tubular products are generally packed manually or by robots for stacking and handling, which results in high production costs, low efficiency and limited practicality. Utility Model Content

[0003] The purpose of this utility model is to solve the shortcomings of existing tubular products, which are generally packed manually or by robots, resulting in high production costs, low efficiency, and low practicality. Therefore, an automatic packing machine for tubular products is proposed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic cartoning machine for tubular products includes a frame, a feeding device for conveying products is installed on the frame, a stacking device for arranging products is installed at the output end of the feeding device, and a carton positioning device for storing folded cartons is installed in the discharge direction of the stacking device.

[0006] The stacking device includes a product hopper, a receiving trough located below the product hopper, and a pushing assembly located behind the receiving trough. A lifting and adjusting assembly is installed at the bottom of the receiving trough, and a baffle side plate is installed on one side of the receiving trough. A side plate adjusting assembly is installed at the bottom of the baffle side plate. A movable plate is provided below the baffle side plate and the lifting and adjusting assembly. The movable plate is connected to the frame through a second fixed plate. A sliding module is provided between the movable plate and the second fixed plate. An upper cover opening assembly, a side cover opening assembly, and a lower cover opening assembly are provided in the direction of the receiving trough's discharge port. The product hopper's inlet end is connected to the feeding device's output end.

[0007] The box positioning device includes a conveying assembly, which is equipped with a separation station and a flipping station. A partition plate is installed between the flipping station and the separation station. The separation station includes a separation push rod, a box pushing cylinder, and a first fixing plate connected to the frame. The flipping station includes an upper clamping plate, a clamping cylinder, a limiting plate, and a lower clamping plate. The upper clamping plate and the lower clamping plate are connected by a clamping cylinder. A linear drive assembly is provided on the lower clamping plate. The linear drive assembly includes a moving frame, a lead screw module, and a first driving component. A flipping drive assembly is provided between the moving frame and the lower clamping plate.

[0008] Furthermore, a protective cover is installed above the product hopper, and a first connecting frame is provided between the product hopper and the protective cover. A distributing cylinder and a distributing rod located at the output end of the distributing cylinder are installed on the upper end of the first connecting frame. The tail of the first connecting frame is connected to the baffle side plate, and a discharge port is provided at the bottom of the product hopper.

[0009] Furthermore, an opening and closing plate is installed on the product hopper outlet, and an opening and closing cylinder is connected to one side of the opening and closing plate for opening and / or closing the opening and closing plate. The fixed end of the opening and closing cylinder is connected to the bottom of the product hopper, and the opening and closing plate is slidably connected to the product hopper through a sliding groove.

[0010] Furthermore, the lifting and adjusting assembly includes a third driving component, which is connected to the movable plate. The output end of the third driving component is connected to a main drive wheel, and a driven wheel is installed on one side of the main drive wheel.

[0011] Furthermore, a lifting screw is connected to the bottom of the driven wheel, and a lifting frame is connected to the end of the lifting screw. A matching threaded sleeve is provided at the connection between the lifting frame and the lifting screw. The four sets of support rods of the lifting frame are movably connected to the receiving groove through bearing connecting seats for lifting the receiving groove.

[0012] Furthermore, the pushing assembly includes a linear module mounted on a movable plate. The servo slide of the linear module is equipped with a second connecting frame, and the other end of the second connecting frame is connected to a product pushing plate for pushing stacked products into cartons.

[0013] Furthermore, the side plate adjustment assembly includes a side plate adjustment screw, and a matching threaded sleeve is provided at the connection between the side plate adjustment screw and the stop side plate. The side plate adjustment screw is fixed to another set of the movable plates by a mounting block, and a handwheel is installed at the other end of the side plate adjustment screw.

[0014] Furthermore, the flipping drive assembly includes a second drive component, which is mounted on the movable frame. The output end of the second drive component is connected to a driving bevel gear, and a driven bevel gear meshes above the driving bevel gear. A rotating shaft is fixed to one side of the driven bevel gear, and the rotating shaft is fixedly connected to the lower clamping plate. The rotating shaft and the movable frame are supported by two sets of mounting blocks.

[0015] Furthermore, the upper cover opening assembly includes a first telescopic cylinder, which is fixedly connected to the outside of the receiving groove. The telescopic end of the first telescopic cylinder is equipped with a first cover opening component, which is distributed in an inclined manner and is used to open the upper cover of the carton.

[0016] Furthermore, the side cover opening assembly includes a second telescopic cylinder, and a hinge is provided between the telescopic end of the second telescopic cylinder and the receiving groove. The other movable end of the hinge is connected to a second cover opening component.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] 1. In this utility model, the lifting and adjusting component drives the receiving trough to rise, so that after the opening and closing plate is opened, the tubular products in the row fall into the receiving trough. Then the receiving trough descends to the position of one tubular product, completing the automatic stacking operation of the tubular products. Through this structural design, the automatic arrangement and stacking of products can be completed according to the size of the carton, which has high practicality.

[0019] 2. In this utility model, the side plate adjustment component allows for easy adjustment of the distance between the baffle side plate and the receiving groove according to the size of the packaged product or the carton capacity. This enables the machine to pack tubular products of different sizes and the quantity of tubular products adjusted according to the carton capacity, thereby improving the applicability and flexibility of the packing machine and making it highly practical.

[0020] 3. In this utility model, the first connecting frame is connected to the baffle side plate, so that after the distance between the baffle side plate and the receiving groove is adjusted, the material distribution rod on the first connecting frame will simultaneously adjust its position, so that the number of products in the product hopper will increase or decrease accordingly, thus completing the product lining and stacking operation, which has high practicality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a perspective view of the box positioning device in this utility model;

[0023] Figure 3This is a side view of the housing positioning component in this utility model;

[0024] Figure 4 This is a schematic diagram of the overall structure of the product hopper in this utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure between the product hopper and the pushing assembly in this utility model;

[0026] Figure 6 This is a schematic diagram of the installation structure of the product hopper and lifting assembly in this utility model;

[0027] Figure 7 This is a schematic diagram of the installation structure of the side plate adjustment assembly in this utility model.

[0028] Legend:

[0029] 1. Frame; 2. Box positioning device; 3. Stacking device; 4. Feeding device; 5. Conveying assembly; 6. Separation station; 601. Separation push rod; 602. First fixing plate; 603. Box pushing cylinder; 7. Tilting station; 701. Upper clamping plate; 702. Clamping cylinder; 703. Limiting plate; 704. Lower clamping plate; 8. Linear drive assembly; 801. Moving frame; 802. Screw module; 803. First driving component; 9. Tilting drive assembly; 901. Driving bevel gear; 902. Second driving component; 903. Rotating shaft; 904. Driven bevel gear; 10. Product hopper; 1001. First connecting frame; 1002. Distributing cylinder; 1003. Distributing rod; 1004. Opening and closing plate; 1005. Opening and closing cylinder; 11. Protective cover; 12. Receiving trough; 3. Pushing assembly; 1301. Linear module; 1302. Second connecting frame; 1303. Product pushing plate; 14. Second fixing plate; 15. Material blocking side plate; 16. Sliding module; 17. Side plate adjustment assembly; 1701. Handwheel; 1702. Side plate adjustment screw; 18. Lifting adjustment assembly; 1801. Lifting screw; 1802. Third driving component; 1803. Bearing connecting seat; 1804. Driven wheel; 1805. Main drive wheel; 1806. Lifting frame; 19. Upper cover plate opening assembly; 1901. First telescopic cylinder; 1902. First cover plate opening component; 20. Side cover plate opening assembly; 2001. Second telescopic cylinder; 2002. Hinge component; 2003. Second cover plate opening component; 21. Lower cover plate opening assembly; 22. Spacer plate; 23. Moving plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-7 An automatic cartoning machine for tubular products includes a frame 1, a feeding device 4 for conveying products is installed on the frame 1, a stacking device 3 for arranging products is installed at the output end of the feeding device 4, and a carton positioning device 2 for storing folded cartons is installed in the discharge direction of the stacking device 3.

[0032] The stacking device 3 includes a product hopper 10, a receiving trough 12 located below the product hopper 10, and a pushing component 13 located behind the receiving trough 12. A lifting adjustment component 18 is installed at the bottom of the receiving trough 12. A baffle side plate 15 is installed on one side of the receiving trough 12. A side plate adjustment component 17 is installed at the bottom of the baffle side plate 15. A movable plate 23 is provided below both the baffle side plate 15 and the lifting adjustment component 18. The movable plate 23 is connected to the frame 1 through a second fixed plate 14. A sliding module 16 is provided between the movable plate 23 and the second fixed plate 14. An upper cover plate opening component 19, a side cover plate opening component 20, and a lower cover plate opening component 21 are provided in the direction of the material outlet of the receiving trough 12. The feeding end of the product hopper 10 is connected to the output end of the feeding device 4.

[0033] The box positioning device 2 includes a conveying assembly 5, which is equipped with a separation station 6 and a flipping station 7. A partition plate 22 is installed between the flipping station 7 and the separation station 6. The separation station 6 includes a separation push rod 601, a box pushing cylinder 603, and a first fixing plate 602 connected to the frame 1. The flipping station 7 includes an upper clamping plate 701, a clamping cylinder 702, a limiting plate 703, and a lower clamping plate 704. The upper clamping plate 701 and the lower clamping plate 704 are connected by the clamping cylinder 702. A linear drive assembly 8 is provided on the lower clamping plate 704. The linear drive assembly 8 includes a moving frame 801, a lead screw module 802, and a first driving component 803. A flipping drive assembly 9 is provided between the moving frame 801 and the lower clamping plate 704.

[0034] By adopting the above technical solution, the feeding device 4 uses an incline machine to transport the tubular products to the product hopper 10 for the alignment of the tubular products. After the alignment is completed, the lifting and adjusting component 18 raises the receiving trough 12 to below the opening and closing plate 1004 of the product hopper 10, allowing the aligned products in the product hopper 10 to fall into the receiving trough 12 for the alignment and stacking of the tubular products. Then, the lifting and adjusting component 18 lowers the stacked products to the lowest position, and the pushing component 13 packs the stacked products into boxes. This completes the automatic alignment, stacking and packing of the tubular products, which has high practicality.

[0035] A protective cover 11 is installed above the product hopper 10. A first connecting frame 1001 is provided between the product hopper 10 and the protective cover 11. A distributing cylinder 1002 and a distributing rod 1003 are installed at the upper end of the first connecting frame 1001. The tail of the first connecting frame 1001 is connected to the baffle side plate 15. A discharge port is provided at the bottom of the product hopper 10.

[0036] Furthermore, a photoelectric sensor is installed at the inlet of the product hopper 10 to detect whether the hopper is full. This photoelectric sensor is a photoelectric counter (the photoelectric counter is implemented using existing technology and will not be described in detail here). When the hopper is full, the distributing rod 1003 lowers in conjunction with the distributing cylinder 1002 to prevent subsequent products from falling into the receiving trough 12. After the first product alignment and unloading operation is completed, the distributing cylinder 1002 drives the distributing rod 1003 to move upward to facilitate the second product alignment operation. This process is repeated to stack the products, thereby completing the alignment and stacking of the tubular products.

[0037] The product hopper 10 is equipped with an opening and closing plate 1004 at the discharge port. An opening and closing cylinder 1005 is connected to one side of the opening and closing plate 1004 for opening and / or closing the opening and closing plate 1004. The fixed end of the opening and closing cylinder 1005 is connected to the bottom of the product hopper 10. The opening and closing plate 1004 is slidably connected to the product hopper 10 through a sliding groove.

[0038] The opening and closing cylinder 1005 drives the opening and closing plate 1004 to slide at the discharge port at the bottom of the product hopper 10, so that the entire row of tubular products can fall smoothly into the receiving trough 12.

[0039] The lifting adjustment assembly 18 includes a third drive component 1802, which is connected to the movable plate 23. The output end of the third drive component 1802 is connected to a main drive wheel 1805, and a driven wheel 1804 is installed on one side of the main drive wheel 1805.

[0040] Specifically, the main drive wheel 1805 and the driven wheel 1804 are driven by a belt. The third drive component 1802 is a servo motor, which drives the main drive wheel 1805 to drive the driven wheel 1804.

[0041] Furthermore, a lifting screw 1801 is connected to the bottom of the driven wheel 1804, and a lifting frame 1806 is connected to the end of the lifting screw 1801. A matching threaded sleeve is provided at the connection between the lifting frame 1806 and the lifting screw 1801. The four sets of support rods of the lifting frame 1806 are movably connected to the receiving groove 12 through the bearing connecting seat 1803, which is used to lift the receiving groove 12.

[0042] Specifically, the driven wheel 1804 drives the lifting screw 1801 to rotate, so that the lifting screw 1801 engages with the threaded sleeve on the lifting frame 1806, causing the lifting frame 1806 to drive the receiving groove 12 to move upward, completing the receiving and stacking of tubular products.

[0043] The lifting frame 1806 is designed to ensure smooth up-and-down movement, which helps improve the stability of stacking tubular products. The lowest position of the receiving trough 12 after it descends is parallel to the conveying component 5, which allows the stacked products to smoothly enter the carton clamped on the conveying component 5 from the receiving trough 12, thus completing the packing operation of the stacked products.

[0044] The feeding assembly 13 includes a linear module 1301, which is mounted on a moving plate 23. The servo slide of the linear module 1301 is equipped with a second connecting frame 1302. The other end of the second connecting frame 1302 is connected to a product feeding plate 1303 for pushing stacked products into cartons.

[0045] Furthermore, the linear module 1301 includes a guide rail, a slide table, a screw or transmission belt, and a drive device. The slide table on the linear module 1301 drives the second connecting frame 1302 to move back and forth, thereby driving the product pusher plate 1303 to push the stacked products out of the receiving groove 12, completing the automatic packing operation of the tubular products.

[0046] The side plate adjustment assembly 17 includes a side plate adjustment screw 1702. A matching threaded sleeve is provided at the connection between the side plate adjustment screw 1702 and the stop side plate 15. The side plate adjustment screw 1702 is fixed to another set of movable plates 23 by a mounting block. A handwheel 1701 is installed at the other end of the side plate adjustment screw 1702.

[0047] Furthermore, the spacing between the baffle side plate 15 and the receiving groove 12 can be adjusted by the side plate adjustment assembly 17 according to the size of the packaged products, so that it can be used for stacking and packing of tubular products of different sizes, which is highly practical.

[0048] The flip drive assembly 9 includes a second drive member 902, which is mounted on the movable frame 801. The output end of the second drive member 902 is connected to a drive bevel gear 901. A driven bevel gear 904 meshes above the drive bevel gear 901. A rotating shaft 903 is fixed to one side of the driven bevel gear 904. The rotating shaft 903 is fixedly connected to the lower clamping plate 704. The rotating shaft 903 and the movable frame 801 are supported by two sets of mounting blocks.

[0049] Furthermore, the second driving component 902 can be a servo motor, which drives the active bevel gear 901 to drive the meshing driven bevel gear 904 to perform the flipping operation on the carton loaded with products.

[0050] Specifically, after the product packing operation is completed, the flipping drive component 9 is used to turn the carton containing the product from a horizontal position to a vertical position, so that the opening of the carton faces the same direction, making it convenient to transport to the next processing step.

[0051] The top cover opening assembly 19 includes a first telescopic cylinder 1901, which is fixedly connected to the outside of the receiving groove 12. The telescopic end of the first telescopic cylinder 1901 is equipped with a first cover opening component 1902, which is distributed in an inclined manner and is used to open the top cover of the carton.

[0052] Furthermore, by using the first telescopic cylinder 1901 to drive the inclined first cover opening component 1902 to move up and down, the top cover of the carton can be opened, facilitating the subsequent packing of the product.

[0053] The side cover opening assembly 20 includes a second telescopic cylinder 2001. A hinge 2002 is provided between the telescopic end of the second telescopic cylinder 2001 and the receiving groove 12. The other movable end of the hinge 2002 is connected to a second cover opening component 2003.

[0054] Furthermore, the side cover opening assembly 20 is provided in two sets, respectively located on both sides of the receiving groove 12. The second cover opening component 2003 is a square plate. The second cover opening component 2003, together with the hinge component 2002, forms a movable structure with the receiving groove 12 (the specific structure of the hinge component 2002 can be easily implemented by those skilled in the art based on relevant technologies, and no specific restrictions are made). By using the second telescopic cylinder 2001 in conjunction with the hinge component 2002 to drive the second cover opening component 2003 to rotate, the side cover of the carton can be opened, allowing the tubular products to be packed more easily.

[0055] Specifically, the structure of the side cover opening assembly 20 is the same as that of the bottom cover opening assembly 21, which can open the bottom cover of the carton. The hinge 2002 is detachable from the receiving groove 12 and the second telescopic cylinder 2001, which facilitates maintenance or replacement of the second telescopic cylinder 2001.

[0056] Working principle: The box positioning device 2 receives the side-opening cartons from the previous process. The separation station 6, in conjunction with the conveying assembly 5, pushes the individual cartons to the flipping station 7. The upper clamping plate 701, clamping cylinder 702, and lower clamping plate 704 of the flipping station 7 clamp and position the cartons. The linear drive assembly 8 then pushes the cartons towards the discharge direction of the receiving trough 12 of the stacking device 3. Next, the side cover opening assembly 20, lower cover opening assembly 21, and upper cover opening assembly 19 open the covers around the cartons, facilitating the subsequent packing of stacked tubular products. The tubular products are then conveyed from the previous process to the incline machine of this equipment. The incline machine transports the products to the product hopper 10, and the product hopper 10 and receiving trough 12... The product stacking operation is carried out in cooperation with the stacking device 3. Then, the stacked tubular products are pushed into the carton by the pushing component 13 to complete the cartoning operation. Finally, the linear drive component 8 drives the carton loaded with products to move away from the stacking device 3 to complete the reset. Then, the flipping drive component 9 turns the horizontally placed carton to a vertical position so that the opening of the carton faces upward. Then, the clamping cylinder 702 releases the clamped carton, so that the carton loaded with products enters the next process for processing under the drive of the conveying component 5. Thus, the stacking and automatic cartoning operation of a whole tubular product is completed, which has high practicality. (Structures not described in this utility model are the same as existing technology or can be implemented by existing technology and are not described here because they do not involve the design points and improvement directions of this utility model.)

[0057] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic boxing machine for tubular products, characterized in that, include: A frame, on which a feeding device for conveying products is installed, a stacking device for arranging products is installed at the output end of the feeding device, and a box positioning device for storing folded cartons is installed in the discharge direction of the stacking device. The stacking device includes a product hopper, a receiving trough located below the product hopper, and a pushing assembly located behind the receiving trough. A lifting and adjusting assembly is installed at the bottom of the receiving trough, and a baffle side plate is installed on one side of the receiving trough. A side plate adjusting assembly is installed at the bottom of the baffle side plate. A movable plate is provided below the baffle side plate and the lifting and adjusting assembly. The movable plate is connected to the frame through a second fixed plate. A sliding module is provided between the movable plate and the second fixed plate. An upper cover opening assembly, a side cover opening assembly, and a lower cover opening assembly are provided in the direction of the receiving trough's discharge port. The product hopper's inlet end is connected to the feeding device's output end. The box positioning device includes a conveying assembly, which is equipped with a separation station and a flipping station. A partition plate is installed between the flipping station and the separation station. The separation station includes a separation push rod, a box pushing cylinder, and a first fixing plate connected to the frame. The flipping station includes an upper clamping plate, a clamping cylinder, a limiting plate, and a lower clamping plate. The upper clamping plate and the lower clamping plate are connected by a clamping cylinder. A linear drive assembly is provided on the lower clamping plate. The linear drive assembly includes a moving frame, a lead screw module, and a first driving component. A flipping drive assembly is provided between the moving frame and the lower clamping plate.

2. The automatic boxing machine for tubular products according to claim 1, characterized in that, A protective cover is installed above the product hopper, and a first connecting frame is provided between the product hopper and the protective cover. A distributing cylinder and a distributing rod are installed at the upper end of the first connecting frame. The tail of the first connecting frame is connected to the baffle side plate, and a discharge port is provided at the bottom of the product hopper.

3. The automatic boxing machine for tubular products according to claim 2, characterized in that, The product hopper discharge port is equipped with an opening and closing plate, and an opening and closing cylinder is connected to one side of the opening and closing plate. The fixed end of the opening and closing cylinder is connected to the bottom of the product hopper, and the opening and closing plate is slidably connected to the product hopper through a sliding groove.

4. The automatic boxing machine for tubular products according to claim 1, characterized in that, The lifting and adjusting assembly includes a third driving component, which is connected to a movable plate. The output end of the third driving component is connected to a main drive wheel, and a driven wheel is installed on one side of the main drive wheel.

5. An automatic boxing machine for tubular products according to claim 4, characterized in that, The driven wheel is connected to a lifting screw at its bottom, and a lifting frame is connected to the end of the lifting screw. A matching threaded sleeve is provided at the connection between the lifting frame and the lifting screw. The four sets of support rods of the lifting frame are movably connected to the receiving groove through bearing connecting seats.

6. An automatic boxing machine for tubular products according to claim 1, characterized in that, The feeding assembly includes a linear module, which is mounted on a movable plate. The servo slide of the linear module is equipped with a second connecting frame, and the other end of the second connecting frame is connected to a product feeding plate.

7. An automatic boxing machine for tubular products according to claim 1, characterized in that, The side plate adjustment assembly includes a side plate adjustment screw, and a matching threaded sleeve is provided at the connection between the side plate adjustment screw and the material stop side plate. The side plate adjustment screw is fixed to another set of the movable plates by a mounting block, and a handwheel is installed at the other end of the side plate adjustment screw.

8. An automatic boxing machine for tubular products according to claim 1, characterized in that, The flipping drive assembly includes a second drive component, which is mounted on a movable frame. The output end of the second drive component is connected to a driving bevel gear, and a driven bevel gear meshes above the driving bevel gear. A rotating shaft is fixed to one side of the driven bevel gear, and the rotating shaft is fixedly connected to a lower clamping plate. The rotating shaft and the movable frame are supported by two sets of mounting blocks.

9. An automatic boxing machine for tubular products according to claim 1, characterized in that, The upper cover opening assembly includes a first telescopic cylinder, which is fixedly connected to the outside of the receiving trough. The telescopic end of the first telescopic cylinder is equipped with a first cover opening component, which is distributed in an inclined manner.

10. An automatic boxing machine for tubular products according to claim 1, characterized in that, The side cover opening assembly includes a second telescopic cylinder, and a hinge is provided between the telescopic end of the second telescopic cylinder and the receiving groove. The other movable end of the hinge is connected to the second cover opening component.

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