CN203091585U - Sheet stock feeding device on pop-top can basic cap / bottom cap stamping equipment - Google Patents

Abstract

A sheet material feeding device on the basic cover/bottom cover stamping equipment of pop cans, comprising: a feeding platform, a clamping mechanism and a transfer mechanism; the clamping mechanism is composed of at least two sets of clamping mechanisms that work alternately, and each set The holding mechanism is provided with at least two clamping points acting on the edge of the stamped sheet, and each clamping point is provided with a gripper, which is connected to the corresponding gripper driving mechanism; each set of grippers is equipped with a corresponding There is a transfer mechanism; the transfer mechanism is arranged above the table and is located in the area of the vertical orthographic projection of the table. The transfer mechanism is provided with a driving end, which is connected to the corresponding jaw from top to bottom through the connecting piece; the transfer The mechanism is composed of X-axis or/and Y-axis linear drive mechanism, and the linear drive mechanism is composed of a servo motor connected with a screw and nut pair, or the linear drive mechanism is a linear motor. The utility model solves the problem that the feeding speed of the existing clamping sheet material feeding device is not easy to increase.

Description

A sheet material feeding device on a basic lid/bottom lid stamping equipment for pop cans

technical field

The utility model relates to production equipment for pop cans, in particular to a basic cover or bottom cover sheet material feeding device for pop cans.

Background technique

Looking at the development of the sheet material feeding device for the basic cover or bottom cover of the can, it is an inevitable trend for the development of the sheet material feeding device with fast feeding speed and high precision. Sheet feeding devices can be divided into two categories in principle: roller feeding devices and clamping feeding devices, both of which have their own advantages and disadvantages. For the roller-type feeding device, the front and rear double-row roller arrangement is generally adopted. The advantage of this structure is that the whole system is relatively compact, simple, and occupies a small area. The disadvantage is that the feeding accuracy and stability are not high. Generally, the edge is at least 1.0 mm (overlap refers to the distance between adjacent blanking units on the sheet), and the running speed is below 200 strokes per minute. If you want to increase the speed, you must increase the amount of overlap and reduce the utilization rate of materials. Therefore, the roller type The feeding method is not an ideal structural method. For the clip-type feeding device, its typical structure is shown in accompanying drawings 1 and 2. It has a feeding platform 3, and a cantilever 5 is arranged transversely above the feeding platform 3, and the root of the cantilever 5 is opposite to the feeding platform 3 along the The feeding direction is slidingly connected, and two jaws 6 are provided on the cantilever 5, and the two jaws 6 are used to clamp the tail of the sheet material 28; The driving device 4 is used to drive the cantilever 5 to move, that is, the gripper 6 clamps and transports the sheet material 28 to the forming die 7 for stamping, and the sheet material 28 is sent by the feeder 1 through a set of pre-transfer device 2 On to feeding platform 3. Compared with the roller-type feeding device, the above-mentioned clamping feeding device has high feeding accuracy and stability, but the above-mentioned structure still has the following disadvantages: 1. Since the cantilever 5 is a moving part, and the cantilever 5 is very heavy, usually several Ten kilograms, or even hundreds of kilograms, the inertia of the cantilever 5 is large, this type of structure is only suitable for the case of low stamping speed (generally below 200 strokes per minute), for high-speed stamping of the basic cover or bottom cover, 28 feed The feed needs quick start and quick stop, so the heavy cantilever 5 cannot meet the requirements of high-speed sheet material 28 feeding accuracy and stability; 2, because the cantilever 5 is very heavy, the load borne by the driving device 4 is relatively large, and the general driving device 4 The service life is only about one year. Therefore, how to provide a sheet material feeding device with high feeding precision and fast speed is the research subject of the present utility model.

Contents of the invention

The utility model provides a sheet material feeding device on the stamping equipment of the basic cover/bottom cover of the can, and aims to solve the problem that the feeding speed of the existing clamping type sheet material feeding device is not easy to increase.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a sheet material feeding device on the basic cover/bottom cover stamping equipment of pop cans, including:

a feeding platform having a table for supporting the sheet to be punched;

A clamping mechanism, which is used to clamp the sheet to be punched;

A transfer mechanism, which is connected with the clamping mechanism and used to transfer the sheet to be punched;

Its innovation lies in:

The clamping mechanism is composed of at least two sets of clamping mechanisms that work alternately, and each set of clamping mechanisms is provided with at least two clamping points acting on the edge of the punched sheet, and each clamping point is provided with jaws, The jaws are connected to the corresponding jaw driving mechanism; each set of clamping mechanisms is equipped with a transfer mechanism;

The transfer mechanism is arranged above the table and is located in the area of the vertical orthographic projection of the table. The transfer mechanism is provided with a driving end, which is connected to the corresponding jaw from top to bottom through the connecting piece;

The transfer mechanism is composed of an X-axis or/and a Y-axis linear drive mechanism, and the linear drive mechanism is composed of a servo motor connected with a screw and nut pair, or the linear drive mechanism is a linear motor.

The relevant content in the above-mentioned technical scheme is explained as follows:

1. In the above scheme, the "alternate work" includes the situation that at least two sets of clamping mechanisms act on the punched sheet partially overlapping time periods, for example: a. Send the second half of the journey by the second group of clamping mechanisms; b. After the first half of the journey is sent by the first and second sets of clamping mechanisms, the first group of clamping mechanisms will return and the second group of clamping mechanisms will continue to send the second half. Procedure.

2. In the above solution, the jaw in "each clamping point is provided with a jaw" may refer to one jaw, or a part of a jaw.

3. In the above scheme, among the two sets of clamping mechanisms, the two clamping points of one set of clamping mechanisms correspond to the rear edge of the stamped sheet, and the two clamping points of the other set of clamping mechanisms correspond to They are arranged on the left and right sides of the stamped sheet.

4. In the above scheme, the sheet material feeding device also includes a pre-positioning structure, which is arranged on the starting end of the table; Composed with the right positioning part, the front positioning part and the rear positioning part are set corresponding to the front and rear edges of the punched sheet material, and the front positioning part and the rear positioning part form at least three-point positioning for the punched sheet material in the front and rear direction; the left positioning part The left and right positioning parts are arranged corresponding to the left and right edges of the punched sheet, and the left and right positioning parts form at least three-point positioning for the punched sheet in the left and right direction; among the front positioning part and the rear positioning part, one The one is positioned relative to the table top in the front-to-back direction, and the other is acted on by a driving part to make it move relative to the table top in the front-back direction; among the left positioning part and the right positioning part, one is positioned relative to the table top in the left-right direction, and the other acts on it. There is a driving part to make it move in the left and right directions relative to the table top.

5. In the above solution, the front positioning part and the rear positioning part are also movable up and down relative to the table to avoid the sheet to be punched.

The design principle and effect of this utility model are: the transfer mechanism is fixedly arranged above the table and is located in the area of the vertical projection of the table, and the transfer mechanism is provided with a driving end. Lightweight connectors can be connected without a huge cantilever, which greatly reduces the weight of the clamping mechanism, that is, the moving parts in the whole device are lighter. This design can meet the requirements of high-speed sheet material feeding accuracy and stability, making the forming punch The stamping speed can reach more than 280 strokes per minute when the overlap is 0.8mm, and the connecting piece connected to the driving mechanism is lighter, that is, the load on the driving end becomes smaller, and the service life of the transfer mechanism is longer.

Description of drawings

Accompanying drawing 1 is a schematic structural diagram of the main view of the prior art;

Accompanying drawing 2 is the prior art top view structure diagram;

Accompanying drawing 3 is the structural schematic diagram of sheet feeding device embodiment of the present utility model;

Accompanying drawing 4 is the schematic diagram of arrangement of the transfer mechanism of the sheet material feeding device according to the embodiment of the present invention;

Accompanying drawing 5 is the schematic diagram of the layout of the pre-positioning structure of the sheet feeding device according to the embodiment of the present invention;

Accompanying drawing 6 is A-A in accompanying drawing 5 partial cross-sectional schematic diagram;

Accompanying drawing 7 is B-B in accompanying drawing 5 partial sectional schematic diagram;

Accompanying drawing 8 is the partial cross-sectional schematic diagram of C-C in accompanying drawing 5.

In the above drawings: 1. Feeding machine; 2. Pre-transmission device; 3. Feeding platform; 4. Driving device; 5. Cantilever; 6. Gripper; 7. Forming die; 8. Feeding platform; 10a, the first jaw; 10b, the second jaw; 11a, the third jaw; 11b, the fourth jaw; 12, the bracket; 13, the first transfer mechanism; 14, the second transfer mechanism; 15, the third Transfer mechanism; 16, driving end; 17, connecting piece; 18, front positioning piece; 19, rear positioning piece; 20, left positioning piece; 21, right positioning piece; 22, movable plate; 23, spring; 24, cylinder; 25. Lifting cylinder; 26. Pneumatic sliding table; 27. Stamped sheet material; 28. Sheet material.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Embodiment: a sheet material feeding device on a basic lid/bottom lid stamping equipment for pop cans

See accompanying drawings 3 to 5, including: feeding platform 8, clamping mechanism and transfer mechanism;

The feeding platform 8 has a table 9 for supporting the sheet to be punched 27 ; balls are provided on the table 9 to reduce the friction between the sheet to be punched 27 and the table 9 .

The clamping mechanism is used to clamp the punched sheet material 27; the clamping mechanism is composed of two sets of clamping mechanisms that work alternately, and each set of clamping mechanisms is provided with two clamps acting on the edge of the punched sheet material 27. Each clamping point is provided with a clamping jaw, and the clamping jaw is connected with its corresponding clamping jaw driving mechanism, and the clamping jaw driving mechanism can adopt an air cylinder 24 or an oil cylinder.

Specifically as shown in the figure, the two groups of clamping mechanisms are respectively a first group of clamping mechanisms and a second group of clamping mechanisms, and the first group of clamping mechanisms includes a first clamping jaw 10a and a second clamping jaw 10b. The clamping jaw 10a and the second clamping jaw 10b are arranged corresponding to the rear end edge of the punched sheet 27, and the second group of clamping mechanisms includes the third clamping jaw 11a and the fourth clamping jaw 11b, and the third clamping jaw 11a and the fourth clamping jaw 11b are correspondingly arranged on the left and right sides of the sheet to be punched 27; each set of clamping mechanisms is correspondingly equipped with a transfer mechanism.

The transfer mechanism is connected with the clamping mechanism for transferring the stamped sheet 27; the transfer mechanism is arranged above the table top 9 and is located in the area of the vertical orthographic projection of the table top 9, and the transfer mechanism is fixed on the support 12, and the transfer mechanism The mechanism is provided with a driving end 16, and the driving end 16 is connected with the corresponding jaw from top to bottom through the connecting piece 17;

The transfer mechanism is specifically three Y-axis linear drive mechanisms, which are respectively the first transfer mechanism 13, the second transfer mechanism 14 and the third transfer mechanism 15, the first transfer mechanism 13 is used to transfer the first group of clamping mechanisms, the second The second transfer mechanism 14 and the third transfer mechanism 15 are used to transfer the second group of clamping mechanisms, and the second transfer mechanism 14 corresponds to the left clamping point, and the third transfer mechanism 15 corresponds to the right clamping point. The first transfer mechanism 13, the second transfer mechanism 14 and the third transfer mechanism 15 are all specifically composed of a servo motor connected to a linear module. Correspondingly, the described transfer mechanism is fixed on the support 12 and refers to the housing of the linear module. It is fixed on the bracket 12, and the driving end 16 corresponds to the slider on the linear module, and the slider is used for moving.

The present embodiment sheet feed device also comprises a pre-positioning structure, and this pre-positioning structure is arranged on the starting end of described table top 9; Composed of the right locator 21, the front locator 18 and the rear locator 19 correspond to the front and rear edges of the stamped sheet 27, and the front locator 18 and the rear locator 19 constitute the punched sheet 27 in the front-rear direction. At least three points of positioning; the left positioning part 20 and the right positioning part 21 are set corresponding to the left and right edges of the punched sheet material 27, and the left positioning part 20 and the right positioning part 21 form at least three points to the punched sheet material 27 in the left and right direction. point positioning. Among the front locator 18 and the rear locator 19, one is positioned relative to the table top 9 in the front-rear direction, and the other acts on the driver to make it move relative to the table 9 along the front-rear direction; , one is positioned relative to the table top 9 in the left and right direction, and the other acts on a driving member to make it move in the left and right direction relative to the table top 9.

This embodiment is specifically shown in the figure: there are two front positioning members 18, which are correspondingly arranged on the front side of the punched sheet material 27, and there are also two rear positioning members 19, which are correspondingly arranged on the rear side of the punched sheet material 27. , so as to form a total of four-point positioning on the punched sheet material 27 in the front-rear direction; there are two left positioning members 20, corresponding to the left side of the punched sheet material 27, and two right positioning members 21, corresponding to It is arranged on the right side of the sheet to be punched 27, so that the sheet to be punched 27 is positioned at four points in the left and right directions. The two front positioning parts 18 act on driving parts to make them move relative to the table top 9 along the front and rear direction, and the two rear positioning parts 19 are fixed relative to the table top 9 in the front and rear direction; The left and right directions are movable, and the two right positioning parts 21 are fixed relative to the table top 9.

As shown in accompanying drawing 6, a lift cylinder 25 is connected to the bottom of the front positioning member 18, and the lift cylinder 25 is seated on a pneumatic slide table 26, and the pneumatic slide table 26 is arranged horizontally for driving the front positioning member 18 along the front-rear direction. Move, and the lifting cylinder 25 drives the front positioning member 18 to move up and down, to avoid being punched sheet 27.

As shown in FIG. 7 , the left positioning member 20 is arranged on an air slide table 26 arranged horizontally and used to drive the left positioning member 20 to move in the left and right direction. Also be provided with a movable plate 22 on the effect end of left locator 20, movable plate 22 is used for pressing sheet material 27 to be stamped, also be provided with a spring 23 between movable plate 22 and left locator 20, movable plate 22 The setting enables normal use of punched sheets 27 with a tolerance of 1 mm to 2 mm that cannot be used in the prior art, and this design also reduces the accuracy requirements of the wave shear.

As shown in accompanying drawing 8, the bottom of rear positioning member 19 is connected with a lift cylinder 25, and lifting cylinder 25 is fixed on a base, and lifting cylinder 25 drives rear positioning member 19 to move up and down, to avoid being stamped sheet 27.

The working process of the embodiment of the present utility model is described as follows: the punched sheet material 27 is transported to the table top 9 by the feeding machine, wherein, before the punched sheet material 27 is delivered to the table top 9, the front positioning member 18 is located below the table top 9, when the punched sheet material 27 is transported to the table top 9, When the punched sheet material 27 reaches the predetermined position, the front positioning member 18 rises under the action of the lifting cylinder 25, and then the punched sheet material 27 is pre-positioned by the pre-positioning structure, that is, the front positioning member 18 slightly moves the punched sheet material 27 and touches it. After positioning at the rear positioning piece 19, the left positioning piece 20 slightly moves the stamped sheet 27 and reaches the right positioning piece 21 for positioning, thereby defining the initial position of the stamped sheet 27. The front positioning piece 18 plays a role in the lifting cylinder 25. The downward movement enables the punched sheet material 27 to move forward smoothly, and then the first group of clamping mechanisms clamps the rear end edge of the punched sheet material 27 and is driven by the first group of transfer mechanisms to transfer toward the forming die 26 , after transferring for a certain distance, the second group of clamping mechanisms clamps the left and right sides of the stamped sheet 27, and is driven by the second group of transfer mechanisms and the third group of transfer mechanisms to continue to transfer to the forming die 26 until it is sent to the forming die 26 Stamping is carried out inside, and when the second set of clamping mechanisms clamps the punched sheet 27, the first set of clamping mechanisms releases the punched sheet 27, and returns to the initial position to clamp the next punched sheet 27.

This embodiment is a preferred solution of the utility model, and the utility model embodiment can also have the following changes:

In the above-mentioned embodiment, there are two clamping points, and each clamping point is provided with a gripper. In actual application, there can be multiple gripping points, and even continuous line segments can be formed, and the corresponding grippers can also be multiple one, or even a long bar jaw. For example, the first group of clamping mechanisms in the embodiment of the present utility model includes a first clamping jaw 10a and a second clamping jaw 10b. The claws are not limited to two, and may be three or more.

In the above embodiment, the clamping mechanism is composed of two sets of clamping mechanisms that work alternately, and each set of clamping mechanisms is equipped with a transfer mechanism. In practical applications, the clamping mechanism can be composed of three alternately working clamping mechanisms One or more sets of clamping mechanisms, and taking three sets of clamping mechanisms as an example, the first set of clamping mechanisms and the second set of clamping mechanisms are located behind the forming die 26, and the third set of clamping mechanisms is located at the forming In front of the punching die 26, the first group of clamping mechanisms will send the stamped sheet 27 to the second group of clamping mechanisms, and the second group of clamping mechanisms will send the stamped sheet 27 to the forming die 26 for stamping, and the third group of clamping mechanisms The holding mechanism continues to move forward from the stamped sheet 27 that has been punched by the front clamping part of the forming die 26 until the punched sheet 27 is completely stamped. Each set of clamping mechanisms is also correspondingly equipped with a transfer mechanism.

In the above embodiment, the transfer mechanism is a Y-axis linear drive mechanism. In practical applications, since the forming die 26 can be a double-row die or a single-row die, when the forming die 26 is a double-row die, the transfer mechanism is Y-axis linear drive mechanism, when the molding die 26 is a single-row mold, a transfer mechanism composed of X-axis and Y-axis linear drive mechanisms can be used, that is, the X-axis linear drive mechanism is connected to the drive end 16 of the Y-axis linear drive mechanism, The driving end 16 of the X-axis linear drive mechanism is connected to the jaws on the table 9 from top to bottom through the connecting piece 17, wherein the X-axis and/or Y-axis linear drive mechanism can also use a linear motor.

In the above-mentioned embodiment, there are three transfer mechanisms, namely the first transfer mechanism 13, the second transfer mechanism 14 and the third transfer mechanism 15, the first transfer mechanism 13 is used to transfer the first group of clamping mechanisms, and the second transfer mechanism 13 is used to transfer the first group of clamping mechanisms. The mechanism 14 and the third transfer mechanism 15 are used to transfer the second group of clamping mechanisms, and the second transfer mechanism 14 corresponds to the left clamping point, and the third transfer mechanism 15 corresponds to the right clamping point. In practical applications, each There may be one transfer mechanism corresponding to the clamping point, or several clamping points or all the clamping points in each group of clamping mechanisms may share one transfer mechanism.

In the above embodiment, the two clamping points of the first group of clamping mechanisms are set corresponding to the rear end edge of the sheet to be punched 27, and the two clamping points of the second group of clamping mechanisms are correspondingly arranged on the edge of the punched sheet 27. In practical applications, the two clamping points of the first set of clamping mechanisms and the two clamping points of the second set of clamping mechanisms can be set corresponding to the rear edge of the sheet material 27 to be stamped. The working process of this case is as follows: the two groups of clamping mechanisms first clamp the rear end edge of the punched sheet material 27, respectively move a certain distance together under the drive of their respective moving mechanisms, and then the first group of clamping mechanisms returns to clamp The next sheet to be punched 27 , while the second group of clamping mechanisms continue to hold the sheet to be punched 27 and transfer to the forming die 26 .

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (4)

1. A sheet material feeding device on a basic lid/bottom lid stamping equipment for pop cans, comprising: A feeding platform (8), the feeding platform (8) has a table (9) for supporting the punched sheet (27); A clamping mechanism, which is used to clamp the sheet to be punched (27); A transfer mechanism, the transfer mechanism is connected with the clamping mechanism, and is used to transfer the sheet to be punched (27); It is characterized by: The clamping mechanism is composed of at least two groups of clamping mechanisms that work alternately, each set of clamping mechanisms is provided with at least two clamping points acting on the edge of the punched sheet (27), and each clamping point is provided with Grippers, the jaws are connected to the corresponding jaw driving mechanism; each set of clamping mechanisms is correspondingly equipped with a transfer mechanism; The transfer mechanism is arranged above the table (9) and is located in the area of the vertical orthographic projection of the table (9). The transfer mechanism is provided with a driving end (16), and the driving end (16) passes through the connecting piece (17) from top to bottom. The bottom is connected with the corresponding jaw; The transfer mechanism is composed of an X-axis or/and a Y-axis linear drive mechanism, and the linear drive mechanism is composed of a servo motor connected with a screw and nut pair, or the linear drive mechanism is a linear motor. 2. The sheet feeding device on the basic cover/bottom cover stamping equipment for pop cans according to claim 1, characterized in that: among the two sets of clamping mechanisms, the two clamping points of one set of clamping mechanisms correspond to The rear end edge of the sheet to be punched (27) is set, and the two clamping points of another set of clamping mechanisms are correspondingly arranged on the left and right sides of the sheet to be punched (27). 3. The sheet material feeding device on the basic cover/bottom cover stamping equipment for pop cans according to claim 1, characterized in that: the sheet material feeding device also includes a pre-positioning structure, which is located on the on the starting end of the table top (9); and, the pre-positioning structure is composed of a front positioning piece (18), a rear positioning piece (19), a left positioning piece (20) and a right positioning piece (21), and the front positioning piece (18) The rear positioning piece (19) is arranged corresponding to the front and rear edges of the punched sheet (27), and the front positioning piece (18) and the rear positioning piece (19) form at least Three-point positioning; the left positioning part (20) and the right positioning part (21) are set corresponding to the left and right edges of the punched sheet (27), and the left positioning part (20) and the right positioning part (21) are in the left and right direction At least three-point positioning is formed for the sheet to be punched (27); among the front positioning member (18) and the rear positioning member (19), one is positioned relative to the table (9) in the front-rear direction, and the other acts on a driving member Make it move relative to the table top (9) along the front and back direction; among the left positioning piece (20) and the right positioning piece (21), one is positioned relative to the table top (9) in the left and right direction, and the other acts on the driving piece to make it The relative table top (9) moves along the left and right directions. 4. The sheet material feeding device on the stamping equipment for the basic cover/bottom cover of the can according to claim 3, characterized in that: the front positioning part (18) and the rear positioning part (19) are also opposite to the table (9) Up and down movable settings, to avoid being punched sheet (27).

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