A can cover positioning processing mechanism

Abstract

The utility model relates to the technical field of metal container processing, and specifically to a can lid positioning processing mechanism, which includes a base, a driving mechanism installed on the base, a first cam, a second cam, a first linkage assembly, a second linkage assembly, a positioning processing piece, and a reset piece, wherein the driving mechanism is sequentially connected to the positioning processing piece through the first cam assembly and the first linkage assembly to drive the positioning processing piece to be linked and extended with the output end of the first linkage assembly, and the driving mechanism is sequentially connected to the positioning processing piece through the second cam assembly and the second linkage assembly to drive the positioning processing piece to be extended and extended relative to the output end of the first linkage assembly. The purpose of the utility model is to provide a can lid positioning processing mechanism, which can effectively prevent the steel needle from falling off the can lid by positioning and shrinking the can lid before inserting the needle into the can lid, thereby improving the processing yield of the can lid.

Description

Technical Field

[0001] The utility model relates to the technical field of metal container processing, in particular to a can cover positioning processing mechanism. Background Art

[0002] The can body is a can-shaped packaging container made of metal sheet through crimping, bonding and other processes. It consists of three parts: can body, can bottom and can cover. The can body has a seam, and the can body, can bottom and can cover are rolled and sealed.

[0003] At present, the can cover and the can body need to be connected by a steel needle, so that the can cover can be rotatably mounted on the can body. The steel needle needs to be inserted into the opening of the can cover in advance before it can be processed by the processing machine; however, during the can cover conveying process, the steel needle in the can cover opening is easily thrown out due to inertia, which affects the subsequent processing of the can body. Summary of the invention

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a can cover positioning and processing mechanism, which can effectively prevent the steel needle from falling from the can cover by positioning and shrinking the can cover before inserting the needle into the can cover, thereby improving the processing yield of the can cover.

[0005] The utility model is realized by the following technical solutions:

[0006] A can cover positioning processing mechanism comprises a base, a driving mechanism installed on the base, a first cam, a second cam, a first linkage assembly, a second linkage assembly, a positioning processing piece and a reset piece, wherein the driving mechanism is sequentially connected to the positioning processing piece through the first cam assembly and the first linkage assembly to drive the positioning processing piece to be linked and extended with the output end of the first linkage assembly, and the driving mechanism is sequentially connected to the positioning processing piece through the second cam assembly and the second linkage assembly to drive the positioning processing piece to be extended and extended relative to the output end of the first linkage assembly; when the first cam drives the first linkage assembly to push the positioning processing piece out, the first linkage assembly overcomes the resistance of the reset piece and drives the positioning processing piece to press the tail of the can cover to position; when the second cam drives the second linkage assembly to retract the positioning processing piece, the positioning processing piece presses one end of the tail of the can cover so that the aperture of one end of the tail of the can cover is smaller than the aperture of the other end of the tail of the can cover.

[0007] Wherein, the first linkage assembly includes a first abutting wheel, a first movable arm, a first slide, a fixed arm and a pressing assembly, the first abutting wheel is rotatably connected to one end of the first movable arm and pressed against a side of the first cam close to the positioning workpiece, the other end of the first movable arm is fixedly connected to the first slide, the lower end of the first slide is slidably connected to the base, and the fixed arm is installed on the first slide;

[0008] The positioning processing piece is movably connected to the fixed arm, and the positioning processing end of the positioning processing piece protrudes out of the fixed arm and is arranged at an end away from the first movable arm;

[0009] When the first cam drives the first resisting wheel away from the driving mechanism, the pressing assembly drives the positioning processing piece to be pressed down away from one end of the first movable arm.

[0010] The pressing assembly includes a push rod, a convex column and an elastic member, wherein the push rod is mounted on the base and located above the fixed arm, the convex column is arranged at the upper end of the positioning workpiece, and the elastic member is connected between the elastic member and an end of the fixed arm away from the first movable arm;

[0011] When the first cam drives the first resisting wheel away from the driving mechanism, the resisting rod resists the protruding column so that the end of the positioning processing piece away from the first movable arm overcomes the elastic force of the elastic piece and is pressed downward.

[0012] Wherein, a first guide groove is formed at one end of the first movable arm, and the first guide groove can be movably sleeved on the output end of the driving mechanism.

[0013] The second linkage assembly includes a second abutment wheel, a second movable arm, a connecting rod and a third movable arm. The second abutment wheel is rotatably connected to one end of the second movable arm and pressed against a side of the second cam away from the positioning workpiece. The connecting rod is fixedly connected to the other end of the second movable arm. One end of the third movable arm is movably connected to the connecting rod. The other end of the third movable arm is rotatably connected to the non-positioning processing end of the positioning workpiece.

[0014] Wherein, a second guide groove is formed at one end of the second movable arm, and the second guide groove can be movably sleeved on the output end of the driving mechanism;

[0015] A third guide groove is formed at one end of the third movable arm, and the third guide groove can be movably sleeved on the connecting rod;

[0016] A fourth guide groove is formed at one end of the fixed arm close to the first movable arm, and the fourth guide groove can be movably sleeved at the connection between the third movable arm and the positioning processing piece.

[0017] The utility model also discloses a can cover positioning processing method, which comprises the following steps:

[0018] The can cover is placed on the jig, and the first cam and the second cam are in the initial state;

[0019] The driving mechanism is started, the first cam and the second cam rotate simultaneously, the cam surface of the first cam contacts the input end of the first linkage assembly, and the first linkage assembly is driven to overcome the resistance of the reset member and push the positioning workpiece out;

[0020] The cam surface of the second cam contacts the input end of the second linkage assembly, driving the positioning processing piece to press against one end of the tail of the tank cover so that the hole diameter of the one end of the tail of the tank cover is smaller than the hole diameter of the other end of the tail of the tank cover;

[0021] The cam surface of the second cam is disengaged from the input end of the second linkage assembly, and then the cam surface of the first cam is disengaged from the input end of the first linkage assembly, and the first linkage assembly is reset under the action of the reset member.

[0022] Beneficial effects of the utility model:

[0023] The utility model discloses a can cover positioning processing mechanism, which realizes the reduction processing of the hole diameter of the tail of the can cover through a cam, a linkage mechanism and the cooperation control between them, effectively avoids the steel needle from falling from the can cover, and improves the processing yield rate of the can cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the utility model and the fixture.

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0027] Figure 3 It is another three-dimensional structural schematic diagram of the utility model.

[0028] Figure 4 It is a schematic diagram of the structure for positioning the workpiece.

[0029] Reference numerals

[0030] Driving mechanism--100, pulley set--101, output shaft--102, first cam--103, second cam--104, base--105, fixture--106,

[0031] The first linkage assembly--200, the first stop wheel--201, the first movable arm--202, the first guide groove--203, the first slide seat--204, the fixed arm--205, the fourth guide groove--206, the pressing assembly--207, the stop rod--208, the boss--209, the limit arm--211,

[0032] The second linkage assembly--300, the second stop wheel--301, the second movable arm--302, the second guide groove--303, the connecting rod--304, the third movable arm--305, the third guide groove--306,

[0033] Positioning workpiece--401. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] The can body is a can-shaped packaging container made of metal sheet through crimping, bonding and other processes. It consists of three parts: can body, can bottom and can cover. The can body has a seam, and the can body, can bottom and can cover are rolled and sealed.

[0038] At present, the can cover and the can body need to be connected by a steel needle, so that the can cover can be rotatably mounted on the can body. The steel needle needs to be inserted into the opening of the can cover in advance before it can be processed by the processing machine; however, during the can cover conveying process, the steel needle in the can cover opening is easily thrown out due to inertia, which affects the subsequent processing of the can body.

[0039] In order to solve the above problems, this embodiment discloses a can cover positioning processing mechanism, the structure of which is as follows: Figures 1 to 4As shown, the processing mechanism includes a base 105, a driving mechanism 100 installed on the base 105, a first cam 103, a second cam 104, a first linkage assembly 200, a second linkage assembly 300, a positioning processing piece 401 and a reset piece. The driving mechanism 100 is sequentially connected to the positioning processing piece 401 through the first cam 103 assembly and the first linkage assembly 200 to drive the positioning processing piece 401 to be linked and extended with the output end of the first linkage assembly 200. The driving mechanism 100 is sequentially connected to the positioning processing piece 401 through the second cam 104 assembly and the second linkage assembly 300. It is connected to the positioning processing piece 401 to drive the positioning processing piece 401 to extend and retract relative to the output end of the first linkage assembly 200; when the first cam 103 drives the first linkage assembly 200 to push out the positioning processing piece 401, the first linkage assembly 200 overcomes the resistance of the reset piece and drives the positioning processing piece 401 to press the tail of the tank cover to position; when the second cam 104 drives the second linkage assembly 300 to retract the positioning processing piece 401, the positioning processing piece 401 presses one end of the tail of the tank cover so that the aperture of one end of the tail of the tank cover is smaller than the aperture of the other end of the tail of the tank cover.

[0040] Furthermore, the first linkage assembly 200 includes a first wheel 201, a first movable arm 202, a first slide 204, a fixed arm 205 and a pressing assembly 207, the first wheel 201 is rotatably connected to one end of the first movable arm 202 and pressed against a side of the first cam 103 close to the positioning processing piece 401, the other end of the first movable arm 202 is fixedly connected to the first slide 204, the lower end of the first slide 204 is slidably connected to the base 105, and the fixed arm 205 is installed on the first slide 204; the positioning processing piece 401 is movably connected to the fixed arm 205 and the positioning processing end of the positioning processing piece 401 protrudes out of the fixed arm 205 and is arranged away from one end of the first movable arm 202; when the first cam 103 drives the first wheel 201 away from the driving mechanism 100, the pressing assembly 207 drives the positioning processing piece 401 to be pressed down away from one end of the first movable arm 202.

[0041] Furthermore, the pressing assembly 207 includes a push rod 208, a boss 209 and an elastic member, the push rod 208 is installed on the base 105 and is located above the fixed arm 205, the boss 209 is set at the upper end of the positioning processing piece 401, and the elastic member is connected between the elastic member and the end of the fixed arm 205 away from the first movable arm 202; when the first cam 103 drives the first push wheel 201 away from the driving mechanism 100, the push rod 208 abuts against the boss 209 to make the end of the positioning processing piece 401 away from the first movable arm 202 overcome the elastic force of the elastic member and press down.

[0042] Furthermore, a limiting arm 211 is protruded from one end of the fixing arm 205 close to the positioning processing end of the positioning processing piece 401 .

[0043] In addition, this embodiment also discloses a can cover positioning processing method, which includes the following steps:

[0044] The can cover is placed on the fixture 106, and the first cam 103 and the second cam 104 are in the initial state;

[0045] The driving mechanism 100 is started, the first cam 103 and the second cam 104 rotate simultaneously, the cam surface of the first cam 103 contacts the input end of the first linkage assembly 200, and the first linkage assembly 200 is driven to overcome the resistance of the reset member and push out the positioning workpiece 401;

[0046] The cam surface of the second cam 104 contacts the input end of the second linkage assembly 300, driving the positioning processing piece 401 to press against one end of the tail of the tank cover so that the hole diameter of one end of the tail of the tank cover is smaller than the hole diameter of the other end of the tail of the tank cover;

[0047] The cam surface of the second cam 104 is disengaged from the input end of the second linkage assembly 300 , and then the cam surface of the first cam 103 is disengaged from the input end of the first linkage assembly 200 , and the first linkage assembly 200 is reset under the action of the reset member.

[0048] In this embodiment, the driving mechanism 100 is preferably a servo motor, and the servo motor outputs to the output shaft 102 through the pulley set 101, and the output shaft 102 drives the first cam 103 and the second cam 104 to rotate.

[0049] Specifically, when the driving mechanism 100 is started, the cam surface of the first cam 103 first contacts the first resisting wheel 201, and pushes the first resisting wheel 201 forward to drive the first movable arm 202, the fixed arm 205 and the positioning processing piece 401 to move forward; at this time, the positioning processing piece 401 is slightly tilted upward under the action of the elastic member, and is pressed down after the contact between the boss 209 and the resisting rod 208, and the limiting arm 211 presses the tank cover against the fixture 106 at this time to ensure that the position of the tank cover is fixed during subsequent processing; at the same time, the positioning processing end of the positioning processing piece 401 presses against the tail of the tank cover to be processed, which just corresponds to the action of the positioning processing piece 401 pressing and positioning the tail of the tank cover, so as to perform consistency processing on the tails of tank covers of different shapes and angles.

[0050] After this step, the cam surface of the first wheel 201 still keeps in contact with the first wheel 201. At this time, the second cam 104 rotates to contact with the second wheel 301, and then drives the second movable arm 302, the connecting rod 304, the third movable arm 305 and the positioning processing piece 401 to move away from the tank cover. The positioning processing piece 401 moves backward relative to the fixed arm 205, and the cavity of the positioning processing piece 401 presses against one end of the tail of the tank cover, so that the aperture of one end of the tail of the tank cover is smaller than the aperture of the other end of the tail of the tank cover, thereby completing the anti-throwout processing of the steel needle of the tank cover.

[0051] Furthermore, a first guide groove 203 is formed at one end of the first movable arm 202, and the first guide groove 203 can be movably sleeved on the output end of the driving mechanism 100;

[0052] A second guide groove 303 is formed at one end of the second movable arm 302, and the second guide groove 303 can be movably sleeved on the output end of the driving mechanism 100;

[0053] A third guide groove 306 is formed at one end of the third movable arm 305, and the third guide groove 306 can be movably sleeved on the connecting rod 304;

[0054] A fourth guide groove 206 is formed at one end of the fixed arm 205 close to the first movable arm 202 . The fourth guide groove 206 can be movably sleeved at the connection between the third movable arm 305 and the positioning processing piece 401 .

[0055] In this embodiment, the first guide groove 203, the second guide groove 303, the third guide groove 306 and the fourth guide groove 206 are used to longitudinally limit the first movable arm 202, the second movable arm 302, the third movable arm 305 and the positioning workpiece 401, thereby ensuring the stability of the positioning workpiece 401 during processing.

[0056] In summary, a can cover positioning and processing mechanism of the present embodiment realizes the reduction processing of the hole diameter of the tail of the can cover through the cam, the linkage mechanism and the coordinated control between them, effectively prevents the steel needle from falling from the can cover, and improves the processing yield of the can cover.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A can lid positioning and processing mechanism, comprising a base, characterized in that: It also includes a driving mechanism, a first cam, a second cam, a first linkage assembly, a second linkage assembly, a positioning processing piece and a reset piece installed on the base, wherein the driving mechanism is sequentially connected to the positioning processing piece through the first cam assembly and the first linkage assembly to drive the positioning processing piece to extend and retract in linkage with the output end of the first linkage assembly, and the driving mechanism is sequentially connected to the positioning processing piece through the second cam assembly and the second linkage assembly to drive the positioning processing piece to extend and retract relative to the output end of the first linkage assembly; When the first cam drives the first linkage assembly to push out the positioning processing piece, the first linkage assembly overcomes the resistance of the reset piece and drives the positioning processing piece to press the tail of the tank cover to position it; when the second cam drives the second linkage assembly to retract the positioning processing piece, the positioning processing piece presses one end of the tail of the tank cover so that the aperture of one end of the tail of the tank cover is smaller than the aperture of the other end of the tail of the tank cover.

2. A can cover positioning and processing mechanism according to claim 1, characterized in that: The first linkage assembly includes a first abutting wheel, a first movable arm, a first slide, a fixed arm and a pressing assembly, wherein the first abutting wheel is rotatably connected to one end of the first movable arm and pressed against a side of the first cam close to the positioning workpiece, the other end of the first movable arm is fixedly connected to the first slide, the lower end of the first slide is slidably connected to the base, and the fixed arm is mounted on the first slide; The positioning processing piece is movably connected to the fixed arm, and the positioning processing end of the positioning processing piece protrudes out of the fixed arm and is arranged at an end away from the first movable arm; When the first cam drives the first resisting wheel away from the driving mechanism, the pressing assembly drives the positioning processing piece to be pressed down away from one end of the first movable arm.

3. A can cover positioning and processing mechanism according to claim 2, characterized in that: The pressing assembly includes a push rod, a convex column and an elastic member, wherein the push rod is mounted on the base and located above the fixed arm, the convex column is arranged on the upper end of the positioning workpiece, and the elastic member is connected between the elastic member and an end of the fixed arm away from the first movable arm; When the first cam drives the first resisting wheel away from the driving mechanism, the resisting rod resists the protruding column so that the end of the positioning processing piece away from the first movable arm overcomes the elastic force of the elastic piece and is pressed downward.

4. A can cover positioning and processing mechanism according to claim 2, characterized in that: A first guide groove is formed at one end of the first movable arm, and the first guide groove can be movably sleeved on the output end of the driving mechanism.

5. The can cover positioning and processing mechanism according to claim 2, characterized in that: A limiting arm is protruded from one end of the fixing arm close to the positioning processing end of the positioning processing piece.

6. A can lid positioning and processing mechanism according to claim 2, characterized in that: The second linkage assembly includes a second bearing wheel, a second movable arm, a connecting rod and a third movable arm. The second bearing wheel is rotatably connected to one end of the second movable arm and presses against a side of the second cam away from the positioning processing part. The connecting rod is fixedly connected to the other end of the second movable arm. One end of the third movable arm is movably connected to the connecting rod, and the other end of the third movable arm is rotatably connected to the non-positioning processing end of the positioning processing part.

7. A can cover positioning and processing mechanism according to claim 6, characterized in that: A second guide groove is formed at one end of the second movable arm, and the second guide groove can be movably sleeved on the output end of the driving mechanism; A third guide groove is formed at one end of the third movable arm, and the third guide groove can be movably sleeved on the connecting rod; A fourth guide groove is formed at one end of the fixed arm close to the first movable arm, and the fourth guide groove can be movably sleeved at the connection between the third movable arm and the positioning processing piece.

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