A multi-station shaping mechanism for small can bodies

Abstract

This invention provides a multi-station shaping mechanism for small cans, which quickly and efficiently shapes small cans transported from the production line, ensuring production needs and reliable shaping. It includes a machine base with a frustum on it, an upper mounting plate directly above the machine base, the frustum being a turntable structure, and several mold mounting positions arranged around the outer circumference of the frustum; a conveyor belt that transports materials to the feeding position on the frustum; an output belt that outputs the shaped cans to a subsequent position; and a material blocking and discharge mechanism; each mold mounting position includes an outer recessed feeding area and an inner mold mounting position, with a pressing shaping mold fixedly mounted on each inner mold mounting position.

Description

Technical Field

[0001] This invention relates to the technical field of can body shaping, specifically a multi-station shaping mechanism for small can bodies. Background Technology

[0002] The can body is produced by multiple combination machines, resulting in inconsistent product dimensions, especially the can lid, which is in a state of disharmony after being manufactured on the production line. Figure 1 The straight edge shown makes it difficult to press the lid in when closing. Therefore, existing technology requires using a mold to shape the upper outer straight edge of the small can into a curved structure (see...). Figure 2 Currently, mold processing is all done manually. When small cans are produced in batches, the shaping volume cannot meet the production demand. Therefore, there is an urgent need to develop a shaping mechanism that can be used in production line operations. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a multi-station shaping mechanism for small cans, which rapidly and efficiently shapes small cans transported from the production line, ensuring production needs and reliable shaping.

[0004] A multi-station shaping mechanism for small can bodies, characterized in that it comprises:

[0005] A machine platform with a truncated cone on it, and an upper mounting plate above the machine platform. The truncated cone is a turntable structure, and several mold mounting positions are provided on the outer circumference of the truncated cone.

[0006] The conveyor belt transports materials to the feeding station of the truncated cone.

[0007] The output conveyor belt carries the shaped can body to the next workstation.

[0008] And the material discharge mechanism;

[0009] Each mold mounting position includes an outer recessed material feeding area and an inner mold mounting position, and a pressing and shaping mold is fixedly mounted on each inner mold mounting position;

[0010] The machine platform is provided with an infeed station, an arc-shaped pressing station, an outlet station, and a transition station on the outer ring of the truncated cone. The arc-shaped pressing station is located behind the infeed station, and the outlet station is located behind the arc-shaped pressing station. The output material belt is connected to the rear of the outlet station, and the transition station is located behind the outlet station. The material blocking and discharge mechanism blocks the material in the tank at the outlet station and then sends it into the starting end of the output material belt along the guide trajectory of the material blocking and discharge mechanism.

[0011] The conveyor belt feeds the can body into the recessed feeding area corresponding to the feeding station. The lower surface of the upper mounting plate is provided with a lower convex ring block at the position corresponding to the arc-shaped pressing station. Each set of pressing and shaping molds is provided with a rolling wheel at the top. The pressing and shaping mold includes a pressing mold assembly. When the pressing mold assembly is in the area of ​​the lower convex ring block, the upper outer straight edge of the can body is continuously pressed and shaped into an arc structure under the pressure of the rolling wheel.

[0012] Its further features are:

[0013] The pressing and shaping mold includes a base, a connecting block, a rolling wheel, a set of tension springs, a pressing mold assembly, and a linear spring. The bottom of the base is fixedly mounted to the corresponding mold mounting position. The top of the base is provided with two side arms, and the front ends of the two side arms are respectively fixedly connected to the top hooks of the tension springs. The front face of the base is provided with a vertical guide rail. The top of the connecting block is provided with a rolling wheel. The back of the connecting block is fixedly mounted with a guide rail pair. The sides of the connecting block are respectively fixedly mounted with the bottom hooks of the tension springs. The bottom of the connecting block is fixedly mounted with the pressing mold assembly.

[0014] The molding assembly includes an upper fixing member, an outer ring fixing lower convex ring member, and an inner ring elastic pressing attachment. The bottom of the connecting block is fixedly fitted with the upper fixing member. The outer ring of the upper fixing member is fixedly connected to the outer ring fixing lower convex ring member. The inner diameter of the outer ring fixing lower convex ring member is arranged to conform to the outer diameter of the can body. The upper part of the inner ring elastic pressing attachment is connected to the lower inner cavity of the upper fixing member through a linear spring. When the whole assembly moves downward, the inner ring elastic pressing attachment applies force to the top of the can body. Under the action of the elastic force of the linear spring, it retracts relative to the outer ring fixing lower convex ring member and continuously applies pressure to the outer straight edge of the top of the can body, shaping it into an arc structure.

[0015] The conveyor belt and the output belt extend from two different ends of the same diameter of the truncated cone, ensuring that the entire production line is reasonably and reliably arranged.

[0016] The concave discharge area corresponds to the position of the frustum formed by the splicing of two inclined sides. The concave discharge area is located directly in front of the intersection of the inclined sides, ensuring that the concave discharge area has a guiding function when the can is placed, so that the can is positioned directly below the molding assembly.

[0017] After adopting the above technical solution, the can body is conveyed one by one to the concave feeding area of ​​the corresponding feeding station by the conveyor belt. Then, the truncated cone rotates so that the can body enters the arc-shaped pressing station. The rolling wheel drives the pressing mold assembly to descend under the pressure of the lower convex ring block, continuously pressing the upper outer straight edge of the can body and shaping it into an arc structure. Then, the pressing and shaping mold leaves the can body and comes to the discharge station. With the rotation of the truncated cone and the blocking of the material discharge mechanism, the can body is sent to the starting end of the output belt along the guide trajectory of the blocking and discharge mechanism. The conveyor belt outputs the shaped can body to the rear station, which will quickly and efficiently shape the small can bodies conveyed by the production line, ensuring production needs and reliable shaping. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the tank body before shaping.

[0019] Figure 2 This is a schematic diagram of the shaped can body;

[0020] Figure 3 A three-dimensional explosion as a specific embodiment of the present invention;

[0021] Figure 4 This is a partial front view sectional view of a specific embodiment of the present invention;

[0022] Figure 5 This is a top view of a specific embodiment of the present invention (the upper mounting plate is removed, and only the lower convex ring block area is shown).

[0023] Figure 6 This is a perspective view of the pressing and shaping mold of the present invention;

[0024] Figure 7 This is a front sectional view of the pressing and shaping mold of the present invention (showing the can body for clear representation); the names corresponding to the serial numbers in the figure are as follows:

[0025] Machine base 10, feeding station 101, arc-shaped pressing station 102, discharging station 103, transition station 104, truncated cone 11, rotating shaft 12, drive motor 13, conveyor belt 20, output belt 30, material blocking and discharging mechanism 40, upper mounting plate 50, tank body 60, mold mounting position 70, outer recessed feeding area 71, long inclined side 711, short inclined side 712, inner mold mounting position 72, lower pressing and shaping mold 80, rolling wheel 81, base 82, side arm 821, vertical guide rail 822, connecting block 83, front connecting column 831, rear back plate 832, tension spring 84, pressing mold assembly 85, upper fixing part 851, outer ring fixing lower convex ring part 852, inner ring elastic pressing part 853, linear spring 86, lower convex ring block 90 Detailed Implementation

[0026] A multi-station shaping mechanism for small can bodies, see Figures 3-7 It includes a machine base 10, a conveyor belt 20, an output belt 30, and a material blocking and discharge mechanism 40;

[0027] A frustum 11 is provided on the machine base 10. An upper mounting plate 50 is provided directly above the machine base 10. A rotating shaft 12 is provided directly below the center of the frustum 11. The rotating shaft 12 is connected to a drive motor 13. The drive motor 13 drives the frustum 11 to rotate. Several mold mounting positions 70 are provided around the outer circumference of the frustum 11.

[0028] The conveyor belt 20 transports the material to the feeding station 101 of the truncated cone 11;

[0029] The output conveyor belt 30 outputs the already shaped can body 60 to the rear workstation;

[0030] Each mold mounting position 70 includes an outer recessed material feeding area 71 and an inner mold mounting position 72, and a pressing and shaping mold 80 is fixedly mounted on each inner mold mounting position 72.

[0031] The machine platform 10 is provided with an infeed station 101, an arc-shaped pressing station 102, an outlet station 103, and a transition station 104 on the outer ring of the truncated cone 11. The arc-shaped pressing station 102 is located behind the infeed station 101, and the outlet station 103 is located behind the arc-shaped pressing station 102. The outlet station 103 is connected to the outlet belt 30. The transition station 104 is located behind the outlet station 103. The material blocking and discharge mechanism 40 blocks the tank body 60 at the outlet station 103 and sends it to the starting end of the outlet belt 30 along the guide trajectory of the material blocking and discharge mechanism 40 (which is an existing mature technology and is obscured in the figure).

[0032] The conveyor belt 20 feeds the can body 60 into the outer recessed feeding area 71 corresponding to the feeding station 101. The lower surface of the upper mounting plate 50 is provided with a lower convex ring block 90 at the position corresponding to the arc-shaped pressing station 102. Each set of pressing and shaping molds 80 is provided with a rolling wheel 81 at the top. The pressing and shaping mold 80 includes a pressing mold assembly 85. When the pressing mold assembly 85 is in the area of ​​the lower convex ring block 90, the upper outer straight edge of the can body 60 is continuously pressed and shaped into an arc structure under the pressure of the rolling wheel 81.

[0033] In practice: both the conveyor belt 20 and the output belt 30 are equipped with independent motor drives; the conveyor belt 20 connects to several small round tank body production lines in the front section and integrates them into a single channel for entry.

[0034] In specific implementation, the pressing and shaping mold 80 includes a base 82, a connecting block 83, a rolling wheel 81, a set of tension springs 84, a pressing mold assembly 85, and a linear spring 86. The bottom of the base 82 is fixedly installed in the corresponding mold mounting position 72. The top of the base 82 is provided with two side arms 821. The front ends of the two side arms 821 are respectively fixedly connected with the top hooks of the tension springs 84. The front face of the base 82 is provided with a vertical guide rail 822. The top of the connecting block 83 is provided with a rolling wheel 81. The back of the connecting block 83 is fixedly installed with a guide rail pair. The sides of the connecting block 83 are respectively fixedly installed with the bottom hooks of the tension springs 84. The tension springs 84 are used to drive the connecting block 83 and the pressing mold assembly 85 to rise and reset as a whole. The bottom of the connecting block 83 is fixedly installed with the pressing mold assembly 85.

[0035] The molding assembly 85 includes an upper fixing member 851, an outer ring fixing lower convex ring member 852, and an inner ring elastic pressing attachment 853. The upper fixing member 851 is fixedly installed at the bottom of the connecting block 83. The outer ring fixing lower convex ring member 852 is fixedly connected to the outer ring of the upper fixing member 851. The inner diameter of the outer ring fixing lower convex ring member 852 is arranged to conform to the outer diameter of the can body 60. The upper part of the inner ring elastic pressing attachment 853 is connected to the lower inner cavity of the upper fixing member 851 through a linear spring 86. When the whole body moves downward, the inner ring elastic pressing attachment 853 applies force to the top of the can body 60. Under the action of the elastic force of the linear spring 86, it retracts relative to the outer ring fixing lower convex ring member 852 and continuously presses the upper outer straight edge of the top of the can body 60, shaping it into an arc structure.

[0036] In specific implementation, the connecting block 83 specifically includes a front connecting post 831 and a rear back plate 832. The top of the front connecting post 831 is connected to a rolling wheel 81 via a mounting shaft. The bottom of the connecting post 831 is fixed with an upper fixing member 851. The outer ring of the upper fixing member 851 is a flange structure, which is fixed to the upper circumference of the lower convex ring member 852 by bolts. The inner cavity of the lower convex ring member 852 is also provided with a stop limit for the inner ring elastic pressure attachment. In the non-shaped state, the lower limit of the outer ring protrusion of the inner ring elastic pressure attachment 853 is located at the stop limit, and the lower surface of the inner ring elastic pressure attachment 853 is flush with the lower surface of the lower convex ring member 852.

[0037] In practice: the conveyor belt 20 and the output belt 30 are respectively set at two different ends of the same diameter of the truncated cone 11 to ensure that the entire production line is reasonably and reliably arranged.

[0038] In specific implementation: the position of the concave discharge area 71 corresponding to the frustum is composed of two inclined sides, specifically a long inclined side 711 and a short inclined side 712. The concave discharge area 71 is located directly in front of the intersection of the inclined sides, ensuring that the concave discharge area 71 has a guiding function when the can body 60 is placed, so that the can body 60 is located directly below the molding assembly 85.

[0039] Its working principle is as follows: the conveyor belt transports the can body to the corresponding infeed position of the recessed feeding area. Then, the rotating truncated cone causes the can body to enter the arc-shaped pressing position. The rolling wheel, under the pressure of the lower convex ring block, drives the pressing mold assembly to descend, continuously pressing the upper outer straight edge of the can body and shaping it into an arc structure. Then, the pressing and shaping mold leaves the can body and comes to the discharge position. With the rotation of the truncated cone and the blocking of the material discharge mechanism, the can body is sent to the starting end of the output belt along the guide trajectory of the blocking and discharge mechanism. The conveyor belt outputs the shaped can body to the rear position, which will quickly and efficiently shape the small can bodies transported by the production line, ensuring production needs and reliable shaping.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-station shaping mechanism for small can bodies, characterized in that, It includes: A machine platform with a truncated cone on it, and an upper mounting plate above the machine platform. The truncated cone is a turntable structure, and several mold mounting positions are provided on the outer circumference of the truncated cone. The conveyor belt transports materials to the feeding station of the truncated cone. The output conveyor belt carries the shaped can body to the next workstation. And the material discharge mechanism; Each mold mounting position includes an outer recessed material feeding area and an inner mold mounting position, and a pressing and shaping mold is fixedly mounted on each inner mold mounting position; The machine platform is provided with an infeed station, an arc-shaped pressing station, an outlet station, and a transition station on the outer ring of the truncated cone. The arc-shaped pressing station is located behind the infeed station, and the outlet station is located behind the arc-shaped pressing station. The output material belt is connected to the rear of the outlet station, and the transition station is located behind the outlet station. The material blocking and discharge mechanism blocks the material in the tank at the outlet station and then sends it into the starting end of the output material belt along the guide trajectory of the material blocking and discharge mechanism. The conveyor belt feeds the can body into the recessed feeding area corresponding to the feeding station. The lower surface of the upper mounting plate is provided with a lower convex ring block at the position corresponding to the arc-shaped pressing station. Each set of pressing and shaping molds is provided with a rolling wheel at the top. The pressing and shaping mold includes a pressing mold assembly. When the pressing mold assembly is in the area of ​​the lower convex ring block, the upper outer straight edge of the can body is continuously pressed and shaped into an arc structure under the pressure of the rolling wheel.

2. The multi-station shaping mechanism for small can bodies as described in claim 1, characterized in that: The pressing and shaping mold includes a base, a connecting block, a rolling wheel, a set of tension springs, a pressing mold assembly, and a linear spring. The bottom of the base is fixedly mounted to the corresponding mold mounting position. The top of the base is provided with two arms, and the front ends of the two arms are respectively fixedly connected to the top hooks of the tension springs. The front face of the base is provided with a vertical guide rail. The top of the connecting block is provided with a rolling wheel. The back of the connecting block is fixedly mounted with a guide rail pair. The sides of the connecting block are respectively fixedly mounted with the bottom hooks of the tension springs. The bottom of the connecting block is fixedly mounted with the pressing mold assembly.

3. The multi-station shaping mechanism for small can bodies as described in claim 2, characterized in that: The molding assembly includes an upper fixing member, an outer ring fixing lower convex ring member, and an inner ring elastic pressing attachment. The upper fixing member is fixedly installed at the bottom of the connecting block. The outer ring of the upper fixing member is fixedly connected to the outer ring fixing lower convex ring member. The inner diameter of the outer ring fixing lower convex ring member is arranged to conform to the outer diameter of the can body. The upper part of the inner ring elastic pressing attachment is connected to the lower inner cavity of the upper fixing member through a linear spring. When the whole assembly moves downward, the inner ring elastic pressing attachment applies force to the top of the can body. Under the action of the elastic force of the linear spring, it retracts relative to the outer ring fixing lower convex ring member and continuously applies pressure to the outer straight edge of the top of the can body, shaping it into an arc structure.

4. The multi-station shaping mechanism for small can bodies as described in claim 1, characterized in that: The conveyor belt and the output belt extend from two different ends of the same diameter of the truncated cone.

5. The multi-station shaping mechanism for small can bodies as described in claim 1, characterized in that: The concave feeding area corresponds to the position of the frustum formed by the joining of two inclined sides, and the concave feeding area is located directly in front of the intersection of the inclined sides.

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