Metal can edge pressing mechanism capable of improving sealing performance

Abstract

The metal can edge pressing mechanism comprises a support, a hydraulic cylinder is installed in the middle of the support, a working table is arranged above the support, an outer cover is connected to the upper portion of the working table, a first telescopic sleeve rod is arranged above the working table, a limiting plate is installed on the inner wall of the outer cover, and a second telescopic sleeve rod is arranged on the outer cover. An electric telescopic rod is connected to the inner wall of the outer cover, a clamping block is installed at the tail end of the electric telescopic rod, a sliding block is connected to the outer end of the electric telescopic rod, and a driving wheel is meshed with the outer side of the sliding block; the device further comprises a driving unit, and the driving unit is arranged on the outer side of the first telescopic sleeve rod. And the edge pressing unit is arranged below the clamping block. By means of the edge pressing device and the reciprocating rolling mode, the problem that a gap is generated between the bottom plate metal sheet and the outer side of the lower portion of the metal can is solved, and the sealing performance of the bottom plate metal sheet combination pressed on the bottom of the metal can can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of edge pressing mechanisms, in particular to an edge pressing mechanism for a metal can with improved sealing performance. Background Art

[0002] Metal cans are usually used to store milk powder, biscuits or other foods that need to be sealed and preserved. Metal cans are mainly composed of a bottom plate, a can body and a cover plate. During the processing and assembly process, the bottom plate needs to be sealed and assembled at the bottom of the can body, and the bottom plate is mainly made of stainless steel sheet metal.

[0003] At present, in the process of assembling the stainless steel metal sheet and the metal can by pressing the bottom metal sheet once, the pressing device is mainly used to press the bottom metal sheet into shape. However, it is difficult to completely press and wrap the edge of the bottom metal sheet and the bottom edge of the metal can with this one-time forming method, resulting in poor sealing of the bottom of the metal can. Especially when storing food in the later stage, the poor sealing leads to a short storage time of food and is prone to safety hazards of spoilage. Therefore, it is necessary to provide a metal can pressing mechanism with improved sealing to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a metal can edge pressing mechanism with improved sealing performance, so as to solve the problem in the above-mentioned background technology that it is difficult to improve the sealing performance when pressing the bottom of the metal can. The technical solution of the utility model is aimed at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal can edge pressing mechanism with improved sealing performance, comprising a bracket, a hydraulic cylinder is installed in the middle of the bracket, and a workbench is arranged above the bracket, an outer cover is connected above the workbench, and a first telescopic sleeve is arranged above the workbench, a limiting plate is installed on the inner wall of the outer cover, and an electric telescopic rod is connected to the inner wall of the outer cover, a clamping block is installed at the end of the electric telescopic rod, and a slider is connected to the outer end of the electric telescopic rod, and a driving wheel is meshed on the outer side of the slider; it also includes a driving unit, which is arranged on the outer side of the first telescopic sleeve; and an edge pressing unit, which is arranged below the clamping block.

[0006] In a further embodiment, a first spring is clamped on the outer side of the first telescopic sleeve, an upper pressing plate is installed on the upper end of the first telescopic sleeve, and a push plate is arranged on the outer side of the first telescopic sleeve.

[0007] In a further embodiment, the driving unit includes a connecting cylinder arranged at the bottom of the upper pressing plate, and a second spring is connected to the inner side of the connecting cylinder, and a piston plate is arranged at the lower end of the second spring.

[0008] In a further embodiment, the piston plate and the connecting cylinder form a sealing sliding structure.

[0009] In a further embodiment, the outer side of the slider is rack-shaped, and the slider forms a sliding structure with the inner wall of the outer cover through a sliding groove.

[0010] In a further embodiment, the edge pressing unit includes a second telescopic sleeve rod installed under the slider, and a third spring is clamped on the outer side of the end of the second telescopic sleeve rod, an oil pipe is connected above the second telescopic sleeve rod, and a sleeve head is slidably connected to the end of the second telescopic sleeve rod, and a edge pressing roller is movably connected above the sleeve head.

[0011] In a further embodiment, the end of the oil pipe is connected to one side of the connecting tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with an electric telescopic rod and a clamping block. The clamping block is moved inward by driving the electric telescopic rod, so that multiple clamping blocks and the edge pressing unit can be effectively moved toward the center at the same time. Compared with the existing technology, it can not only effectively adjust the metal can body to align with the center of the limit plate, but also clamp and fix the metal can body;

[0014] 2. The utility model is provided with a press unit. When the plurality of press units move toward the center, the plurality of second telescopic sleeves and the plurality of press rollers can be driven to move toward the center at the same time. By the plurality of second telescopic sleeves and the plurality of press rollers moving toward the center at the same time, compared with the prior art, the center of the bottom plate metal sheet can be adjusted to the center of the metal can body, so that the metal can body is effectively aligned with the center of the bottom plate metal sheet;

[0015] 3. The utility model is provided with a driving unit and a pressing unit, which are driven by a hydraulic cylinder to push the upper pressing plate and the upper bottom plate metal sheet toward the bottom of the metal can body, so that the first telescopic sleeve cooperates with the first spring to contract and resist the bottom of the metal can body, so that the push plate outside the first telescopic sleeve cooperates with the second spring and the connecting tube to squeeze the piston plate upward. At this time, negative pressure will be generated at the lower inner side of the connecting tube, so that the oil inside the second telescopic sleeve can be effectively sucked into the inner side of the connecting tube in cooperation with the oil pipe, so that the second telescopic sleeve can be contracted upward and drive the pressing roller, the third spring and the sleeve head to move upward. Compared with the existing technology, the upward movement of the pressing roller can effectively drive the bottom plate metal sheet to move upward, so that the outer ring edge of the bottom plate metal sheet bends upward under the limit of the bottom of the metal can, and because the bottom edge of the metal can and the edge of the pressing roller are set to conflict with each other through the elastic reset of the third spring, the outer ring of the bottom of the metal can is effectively wrapped tightly;

[0016] 4. The utility model is provided with a pressing device. After the bottom of the metal can is wrapped, the control button is used to start the electric telescopic rod to retract in the opposite direction. Note that the reverse contraction size of the electric telescopic rod here should not be too large, as long as the clamping block no longer clamps the outer side of the metal can. However, the pressing roller below still presses the bottom plate metal sheet after the edge wrapping against the outer side of the metal can under the cooperation of the third spring and the sleeve. The servo motor drives the driving wheel to rotate forward and reverse, which can effectively drive the slider to cooperate with the outer cover slide groove to rotate forward and reverse, and at the same time drive the pressing unit to rotate forward and reverse, so that the pressing roller can effectively reciprocate and roll the bottom plate metal sheet wrapped on the outer side of the bottom of the metal can under the action of forward and reverse rotation, and then effectively press the bottom plate metal sheet to the outer side of the bottom of the metal can. Compared with the existing technology, this reciprocating rolling method avoids the problem of a gap between the bottom plate metal sheet and the outer side of the bottom of the metal can, and can improve the sealing of the bottom plate metal sheet combination pressed on the bottom of the metal can. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a preferred embodiment of a metal can edge pressing mechanism for improving sealing provided by the utility model;

[0018] Figure 2 for Figure 1 The schematic diagram of the top-sectional structure is shown;

[0019] Figure 3 for Figure 1 The enlarged structural diagram of point A shown;

[0020] Figure 4 for Figure 1 The enlarged structural schematic diagram of point B is shown.

[0021] In the figure: 1. bracket; 2. hydraulic cylinder; 3. workbench; 4. outer cover; 5. first telescopic sleeve; 501. first spring; 502. upper pressing plate; 503. push plate; 6. driving unit; 601. connecting tube; 602. second spring; 603. piston plate; 7. limit plate; 8. electric telescopic rod; 9. clamping block; 10. slider; 11. driving wheel; 12. edge pressing unit; 1201. second telescopic sleeve; 1202. third spring; 1203. oil pipe; 1204. sleeve head; 1205. edge pressing roller. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides an embodiment: a metal can edge pressing mechanism for improving sealing performance, including a bracket 1, a hydraulic cylinder 2 is installed in the middle of the bracket 1, and a workbench 3 is arranged above the bracket 1, an outer cover 4 is connected above the workbench 3, and a first telescopic sleeve 5 is arranged above the workbench 3, a limit plate 7 is installed on the inner wall of the outer cover 4, and an electric telescopic rod 8 is connected to the inner wall of the outer cover 4, a clamping block 9 is installed at the end of the electric telescopic rod 8, and a slider 10 is connected to the outer end of the electric telescopic rod 8, and a driving wheel 11 is meshed on the outer side of the slider 10; it also includes a driving unit 6, the driving unit 6 is arranged on the outer side of the first telescopic sleeve 5; a edge pressing unit 12, the edge pressing unit 12 is arranged below the clamping block 9. Example 1

[0024] See also Figure 1 , a first spring 501 is clamped on the outer side of the first telescopic sleeve 5, and an upper pressing plate 502 is installed on the upper end of the first telescopic sleeve 5, and a push plate 503 is arranged on the outer side of the first telescopic sleeve 5, the driving unit 6 includes a connecting tube 601 arranged at the bottom of the upper pressing plate 502, and a second spring 602 is connected to the inner side of the connecting tube 601, and a piston plate 603 is arranged at the lower end of the second spring 602, and the piston plate 603 and the connecting tube 601 form a sealing sliding structure, the edge pressing unit 12 includes a second telescopic sleeve 1201 installed below the slider 10, and a third spring 1202 is clamped on the outer side of the end of the second telescopic sleeve 1201, an oil pipe 1203 is connected above the second telescopic sleeve 1201, and a sleeve head 1204 is slidably connected to the end of the second telescopic sleeve 1201, and an edge pressing roller 1205 is movably connected above the sleeve head 1204, and the end of the oil pipe 1203 is connected to one side of the connecting tube 601;

[0025] First, place the bottom metal sheet pressed with the bottom of the metal can body on the upper pressing plate 502, then extend the metal can body into the inner side of the outer cover 4, then start all the electric telescopic rods 8 through the control button, and slowly drive the clamping block 9 to move inward, so that multiple clamping blocks 9 and the edge pressing unit 12 move toward the center at the same time. By moving the clamping block 9 inward, the metal can body can be effectively adjusted to align with the center of the limit plate 7, and the metal can body can be clamped and fixed;

[0026] When multiple edge pressing units 12 move toward the center, they can drive multiple second telescopic sleeves 1201 and multiple edge pressing rollers 1205 to move toward the center at the same time. By moving multiple second telescopic sleeves 1201 and multiple edge pressing rollers 1205 toward the center at the same time, the center of the bottom metal sheet can be adjusted to the center of the metal can body, so that the metal can body is effectively aligned with the center of the bottom metal sheet. Example 2

[0027] See also Figure 1-4 , which is different from the embodiment 1, is that: a first spring 501 is clamped on the outer side of the first telescopic sleeve 5, and an upper pressing plate 502 is installed on the upper end of the first telescopic sleeve 5, and a push plate 503 is arranged on the outer side of the first telescopic sleeve 5, the driving unit 6 includes a connecting tube 601 arranged at the bottom of the upper pressing plate 502, and a second spring 602 is connected to the inner side of the connecting tube 601, and a piston plate 603 is arranged at the lower end of the second spring 602, and the piston plate 603 and the connecting tube 601 form a sealing sliding structure, and the outer side of the slider 10 is a gear The slider 10 is in strip shape, and the slider 10 forms a sliding structure with the inner wall of the outer cover 4 through a sliding groove. The edge pressing unit 12 includes a second telescopic sleeve rod 1201 installed below the slider 10, and a third spring 1202 is clamped on the outer side of the end of the second telescopic sleeve rod 1201. An oil pipe 1203 is connected above the second telescopic sleeve rod 1201, and a sleeve head 1204 is slidably connected to the end of the second telescopic sleeve rod 1201. A edge pressing roller 1205 is movably connected above the sleeve head 1204, and the end of the oil pipe 1203 is connected to one side of the connecting tube 601;

[0028] After the above adjustment of the metal can body and the bottom plate metal sheet is completed, the hydraulic cylinder 2 is started to drive the first telescopic sleeve rod 5 and the first spring 501 to move upward, and push the upper pressing plate 502 and the upper bottom plate metal sheet to move toward the bottom of the metal can body. When the bottom plate metal sheet resists the bottom of the metal can body, the hydraulic cylinder 2 is continued to be driven to push the first telescopic sleeve rod 5, so that the first telescopic sleeve rod 5 is contracted in conjunction with the first spring 501. At this time, the push plate 503 outside the first telescopic sleeve rod 5 will also move upward, and the piston plate 603 is moved upward in conjunction with the second spring 602 and the connecting tube 601. At this time, negative pressure will be generated at the lower inner side of the connecting tube 601. Under the negative pressure state, the oil inside the second telescopic sleeve 1201 will be sucked into the inside of the connecting tube 601 in cooperation with the oil pipe 1203, so that the second telescopic sleeve 1201 will shrink upward, and drive the edge pressing roller 1205, the third spring 1202 and the sleeve head 1204 to move upward. When the edge pressing roller 1205 moves upward, it can drive the bottom plate metal sheet to move upward, so that the outer edge of the bottom plate metal sheet bends upward under the limit of the bottom of the metal can. Since the bottom edge of the metal can and the edge of the edge pressing roller 1205 are set to conflict with each other through the elastic reset of the third spring 1202, the outer ring of the bottom of the metal can is effectively wrapped tightly.

[0029] After wrapping the bottom of the metal can, the control button is used to start the electric telescopic rod 8 again to shrink slightly in the reverse direction. Note that the reverse shrinkage size of the electric telescopic rod 8 here should not be too large, as long as the clamping block 9 no longer clamps the outer side of the metal can. However, the lower pressing roller 1205, with the cooperation of the third spring 1202 and the sleeve 1204, still presses the bottom plate metal sheet after the edge wrapping against the outer side of the metal can. At this time, the motor on the right side of the outer cover 4 is started by the control button, and the driving wheel 11 is driven to rotate forward and reverse. The driving wheel 11 rotates forward and reverse to drive the slider 10 to rotate forward and reverse in coordination with the slide groove inside the outer cover 4, and at the same time drives the pressing unit 12 to rotate forward and reverse, so that the pressing roller 1205, under the action of forward and reverse rotation, effectively reciprocates and rolls the bottom plate metal sheet wrapped on the outer side of the metal can, and then effectively presses the bottom plate metal sheet to the outer side of the metal can. This reciprocating rolling method avoids the problem of a gap between the bottom plate metal sheet and the outer side of the metal can, and can improve the sealing of the bottom plate metal sheet combination pressed on the bottom of the metal can.

[0030] Working principle: Figure 1-4 As shown, the bottom plate metal sheet pressed with the bottom of the metal can body is first placed on the upper pressing plate 502, and then the metal can body is extended into the inner side of the outer cover 4, and then all the electric telescopic rods 8 are started by the control button, and the clamping block 9 is slowly driven to move inward, so that multiple clamping blocks 9 and the edge pressing unit 12 move toward the center at the same time. By moving the clamping block 9 inward, the metal can body can be effectively adjusted to align with the center of the limit plate 7, and the metal can body can be clamped and fixed;

[0031] When the plurality of edge pressing units 12 move toward the center, the plurality of second telescopic sleeves 1201 and the plurality of edge pressing rollers 1205 can be driven to move toward the center at the same time. By the plurality of second telescopic sleeves 1201 and the plurality of edge pressing rollers 1205 moving toward the center at the same time, the center of the bottom plate metal sheet can be adjusted to the center of the metal can body, so that the metal can body is effectively aligned with the center of the bottom plate metal sheet;

[0032] After the above adjustment of the metal can body and the bottom plate metal sheet is completed, the hydraulic cylinder 2 is started to drive the first telescopic sleeve rod 5 and the first spring 501 to move upward, and push the upper pressing plate 502 and the upper bottom plate metal sheet to move toward the bottom of the metal can body. When the bottom plate metal sheet resists the bottom of the metal can body, the hydraulic cylinder 2 is continued to be driven to push the first telescopic sleeve rod 5, so that the first telescopic sleeve rod 5 is contracted in conjunction with the first spring 501. At this time, the push plate 503 outside the first telescopic sleeve rod 5 will also move upward, and the piston plate 603 is moved upward in conjunction with the second spring 602 and the connecting tube 601. At this time, negative pressure will be generated at the lower inner side of the connecting tube 601. Under the negative pressure state, the oil inside the second telescopic sleeve 1201 will be sucked into the inside of the connecting tube 601 in cooperation with the oil pipe 1203, so that the second telescopic sleeve 1201 will shrink upward, and drive the edge pressing roller 1205, the third spring 1202 and the sleeve head 1204 to move upward. When the edge pressing roller 1205 moves upward, it can drive the bottom plate metal sheet to move upward, so that the outer edge of the bottom plate metal sheet bends upward under the limit of the bottom of the metal can. Since the bottom edge of the metal can and the edge of the edge pressing roller 1205 are set to conflict with each other through the elastic reset of the third spring 1202, the outer ring of the bottom of the metal can is effectively wrapped tightly.

[0033] After wrapping the bottom of the metal can, the control button is used to start the electric telescopic rod 8 again to shrink slightly in the reverse direction. Note that the reverse shrinkage size of the electric telescopic rod 8 here should not be too large, as long as the clamping block 9 no longer clamps the outer side of the metal can. However, the lower pressing roller 1205, with the cooperation of the third spring 1202 and the sleeve 1204, still presses the bottom plate metal sheet after the edge wrapping against the outer side of the metal can. At this time, the motor on the right side of the outer cover 4 is started by the control button, and the driving wheel 11 is driven to rotate forward and reverse. The driving wheel 11 rotates forward and reverse to drive the slider 10 to rotate forward and reverse in coordination with the slide groove inside the outer cover 4, and at the same time drives the pressing unit 12 to rotate forward and reverse, so that the pressing roller 1205, under the action of forward and reverse rotation, effectively reciprocates and rolls the bottom plate metal sheet wrapped on the outer side of the metal can, and then effectively presses the bottom plate metal sheet to the outer side of the metal can. This reciprocating rolling method avoids the problem of a gap between the bottom plate metal sheet and the outer side of the metal can, and can improve the sealing of the bottom plate metal sheet combination pressed on the bottom of the metal can.

[0034] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. In the description of the present invention, unless otherwise specified, "multiple" means two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] It is obvious 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A metal can edge pressing mechanism for improving sealing performance, comprising a bracket (1), a hydraulic cylinder (2) is installed in the middle of the bracket (1), a workbench (3) is arranged above the bracket (1), an outer cover (4) is connected above the workbench (3), a first telescopic sleeve rod (5) is arranged above the workbench (3), a limit plate (7) is installed on the inner wall of the outer cover (4), an electric telescopic rod (8) is connected to the inner wall of the outer cover (4), a clamping block (9) is installed at the end of the electric telescopic rod (8), and a slider (10) is connected to the outer end of the electric telescopic rod (8), and a driving wheel (11) is meshed on the outer side of the slider (10); Features: It also comprises a driving unit (6), the driving unit (6) being arranged on the outside of the first telescopic sleeve (5), the driving unit (6) comprising a connecting tube (601) arranged at the bottom of the upper pressing plate (502), the inner side of the connecting tube (601) being connected to a second spring (602), the lower end of the second spring (602) being provided with a piston plate (603), the piston plate (603) and the connecting tube (601) forming a sealing sliding structure; A pressing unit (12), wherein the pressing unit (12) is arranged below the clamping block (9), and comprises a second telescopic sleeve rod (1201) installed below the sliding block (10), and a third spring (1202) is clamped on the outer side of the end of the second telescopic sleeve rod (1201), an oil pipe (1203) is connected above the second telescopic sleeve rod (1201), and a sleeve head (1204) is slidably connected to the end of the second telescopic sleeve rod (1201), and a pressing roller (1205) is movably connected above the sleeve head (1204), and the end of the oil pipe (1203) is connected to one side of the connecting tube (601).

2. A metal can edge pressing mechanism for improving sealing performance according to claim 1, characterized in that: A first spring (501) is clamped on the outside of the first telescopic sleeve (5), an upper pressing plate (502) is installed on the upper end of the first telescopic sleeve (5), and a push plate (503) is arranged on the outside of the first telescopic sleeve (5).

3. A metal can edge pressing mechanism for improving sealing performance according to claim 1, characterized in that: The outer side of the slider (10) is in the shape of a rack, and the slider (10) forms a sliding structure with the inner wall of the outer cover (4) via a sliding groove.

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