Guide plug for auxiliary steel shell cutting

Abstract

The present invention provides a guide plug for assisting the cutting of a steel shell, which is used for the cutting of a steel shell to be cut. The guide plug comprises a supporting portion for supporting an upper die for the cutting, an open end guide section abutting against the inner wall of the open end of the steel shell to be cut, and a body guide section extending into the body of the steel shell to be cut; a body limiting section abutting against the inner wall of the head of the steel shell to be cut is arranged at the bottom of the body guide section. The guide plug is abutted against the inner wall of the open end of the steel shell to be cut by the open end guide section, and the carcass guide section extends into the carcass to correct the position of the steel shell during the cutting process. A carcass limiting section is arranged at the bottom of the carcass guide section. Therefore, during the cutting process, the open end guide section and the carcass limiting section simultaneously press and limit the open end of the steel shell and the head of the steel shell, thereby improving the verticality of the guide plug and the steel shell to be cut, reducing the swing amplitude of the steel shell, and reducing the swing offset of the cutting position, thereby reducing the shoulder height difference of the steel shell after cutting and improving the cutting quality of the steel shell.

Description

Technical Field

[0001] The invention relates to the technical field of batteries, and more particularly to a guide plug for assisting steel shell cutting. Background Art

[0002] The last process after the alkaline zinc-manganese battery steel shell is formed is the cutting process, which is used to separate the steel shell from the waste head. Figure 1-1 and Figure 1-2 As shown, Figure 1-1 This is a schematic diagram of the steel shell structure of the alkaline zinc-manganese battery after molding; Figure 1-2 The schematic diagram of the cutting structure of the waste head and the steel shell after the battery steel shell is cut and separated. After the battery steel shell is formed, the waste head 11' on the top needs to be cut and separated from the steel shell 12'. Figure 2 As shown, Figure 2 The steel shell 12' is a hollow cylinder composed of a closed positive terminal 21', a cylindrical body 22' and an open end 23'. To ensure structural stability, the circumferential shoulder height 24' of the steel shell must be consistent, so the shoulder height difference must be kept stable within a small range.

[0003] In the current process, the cutting process of the formed steel shell is generally carried out by fixing the steel shell with a guide plug. The form of the guide plug is as follows: Figure 3 As shown, Figure 3 The guide plug 3' is a stepped columnar part composed of a fixed end 31', an open end guide section 32', and a carcass guide section 33'.

[0004] The cutting process of the formed steel shell includes four steps, such as Figure 4-1 to Figure 4-4 As shown, Figure 4-1 The schematic diagram is a structural diagram of the initial stage of steel shell cutting. The guide plug 41 is fixed to the cutting die handle 43 by a fixing screw 42. The cutting upper die 44 is set between the guide plug 41 and the cutting die handle 43. The guide plug 41 is inserted into the steel shell 45 to be cut, and the upper cutting edge 47 of the cutting upper die 44 abuts against the inner wall of the steel shell 45 to be cut. When cutting, the outer wall of the steel shell 45 to be cut extends into the cutting lower die 46, and the lower cutting edge 48 of the cutting lower die 46 abuts against the outer wall of the steel shell 45 to be cut. When cutting, it is necessary to ensure that the central axes of the cutting upper die 44, the steel shell 45 to be cut, and the cutting lower die 46 roughly coincide.

[0005] Figure 4-2 The upper cutter die 46 moves downward, and the guide plug 41 enters the steel shell 45 to be cut. The guide plug 41 guides the steel shell 45 to be cut. At this time, the central axes of the upper cutter die 46, the steel shell 45 to be cut, and the lower cutter die 46 are basically coincident.

[0006] Figure 4-3The upper cutter die 44 continues to move downward, pushing the steel shell 45 to be cut into the lower cutter die 46. During the process of the upper cutter entering the lower cutter die 46, the steel shell and the waste head are separated by the interaction of the upper cutting edge 47 and the lower cutting edge 48 of the lower cutter die 46. Figure 4-4 It is a schematic diagram of the arrangement structure of the cutting device after the waste head is cut off from the steel shell. The cutting upper die 44 continues to move downward, and the steel shell is separated from the waste head, thereby achieving the purpose of cutting.

[0007] It can be seen from the above-mentioned cutting process that in order to ensure the cutting quality, the height difference of the steel shell shoulder should be stabilized within a smaller range, and during the cutting process, the central axes of the cutting upper die, the steel shell to be cut, and the cutting lower die should be basically coincident. That is, under the action of the guide plug, it becomes the key to ensure that the steel shell to be cut is cut in a vertical state.

[0008] In order to avoid the phenomenon that the guide sections of the guide plug scratch the inner wall of the steel shell when the guide plug enters the steel shell to be cut, the outer diameter of the guide section at the opening end is often slightly smaller than the outer diameter of the opening end 25' during design and processing, and the outer diameter of the guide section of the body is often slightly smaller than the inner diameter of the body 26' during design and processing. That is to say, there is a gap between the guide plug and the inner wall of the steel shell when it is working. At the same time, since the outer diameter 27' of the steel shell cut is required to be larger than the outer diameter 28' of the opening end after cutting, the designed inner diameter of the lower die of the cut must be larger than the outer diameter of the opening end of the steel shell. The above two reasons make it difficult to cut the steel shell to be cut in a vertical state, which also makes the steel shell after cutting have a large shoulder height difference. Under normal circumstances, the shoulder height difference is greater than 0.05mm. For steel shells with large outer diameters at the mouth, the shoulder height difference is often greater than 0.1mm.

[0009] Therefore, how to improve the stability of the steel shell cutting quality is a problem that needs to be solved urgently by technical personnel in this field. Summary of the invention

[0010] In view of this, the present invention provides a guide plug for assisting the steel shell cut to improve the stability of the steel shell cut quality.

[0011] In order to achieve the above object, the present invention provides the following technical solutions:

[0012] A guide plug for assisting in cutting a steel shell is used for cutting a steel shell to be cut. The guide plug includes a support portion for supporting an upper die for cutting, an open end guide section that abuts against the inner wall of the open end of the steel shell to be cut, and a body guide section that extends into the body of the steel shell to be cut; a body limiting section is provided at the bottom of the body guide section that abuts against the inner wall of the head of the steel shell to be cut.

[0013] Preferably, in the guide plug for assisting steel shell cutting, the guide height of the guide plug is the total length of the opening end guide section, the body guide section and the body limiting section, and the guide height is equal to the inner shoulder height of the steel shell to be cut.

[0014] Preferably, in the guide plug for assisting the steel shell cutout, the carcass limiting section is a limiting column of a cylindrical structure whose outer diameter is smaller than the inner diameter of the carcass.

[0015] Preferably, in the guide plug for assisting in cutting the steel shell, the carcass limiting section is a limiting sleeve whose bottom abuts against the inner wall of the head of the steel shell to be cut.

[0016] Preferably, in the guide plug of the auxiliary steel shell cutout, the carcass limiting section and the carcass guiding section are an integrated structure.

[0017] Preferably, in the guide plug of the auxiliary steel shell cutout, a screw mounting hole is provided in the guide plug along its radial direction, and a recessed groove is provided at the bottom of the carcass guide section, which is coaxially arranged with the screw mounting hole and accommodates the screw head.

[0018] The guide plug for assisting steel shell cutting provided by the present invention is used for cutting a steel shell to be cut. The guide plug includes a supporting portion for supporting an upper die for cutting, an open end guide section abutting against the inner wall of the open end of the steel shell to be cut, and a body guide section extending into the body of the steel shell to be cut; a body limiting section abutting against the inner wall of the head of the steel shell to be cut is provided at the bottom of the body guide section. The guide plug is connected to the cutting upper die through the supporting part. When the cutting is working, the opening end guide section is against the inner wall of the opening end of the steel shell to be cut, and the carcass guide section extends into the carcass to correct the position of the steel shell during the cutting process. A carcass limiting section is arranged at the bottom of the carcass guide section, which is against the inner wall of the head of the steel shell to be cut. Therefore, during the cutting process, the opening end guide section and the carcass limiting section simultaneously press and limit the opening end of the steel shell and the head of the steel shell, thereby improving the verticality of the guide plug and the steel shell to be cut, reducing the swing amplitude of the steel shell, and reducing the swing offset of the cutting position, thereby reducing the shoulder height difference of the steel shell after cutting and improving the cutting quality of the steel shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1-1 This is a schematic diagram of the steel shell structure of the alkaline zinc-manganese battery after molding;

[0021] Figure 1-2It is a schematic diagram of the cutting structure of the waste head and the steel shell after the battery steel shell is cut and separated;

[0022] Figure 2 It is a schematic diagram of the structure of the steel shell after cutting;

[0023] Figure 3 It is a structural schematic diagram of the guide plug;

[0024] Figure 4-1 This is a schematic diagram of the initial stage of steel shell cutting layout;

[0025] Figure 4-2 Schematic diagram of the structural arrangement for the preparation stage of the steel shell cut;

[0026] Figure 4-3 It is a schematic diagram of the structural arrangement of the cutting stage of the steel shell cutting;

[0027] Figure 4-4 It is a schematic diagram of the arrangement structure of the cutting device after the waste head is cut off from the steel shell;

[0028] Figure 5 A schematic diagram of the structure of the guide plug for assisting the steel shell cutout provided by the present invention;

[0029] Figure 6 for Figure 5 Schematic diagram of the guide plug assembly structure of the auxiliary steel shell cutout. DETAILED DESCRIPTION

[0030] The invention discloses a guide plug for assisting steel shell incision, which improves the stability of the quality of the steel shell incision.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 5 and Figure 6 As shown, Figure 5 A schematic diagram of the structure of the guide plug for assisting the steel shell cutout provided by the present invention; Figure 6 for Figure 5 Schematic diagram of the guide plug assembly structure of the auxiliary steel shell cutout.

[0033] The present invention provides a guide plug for assisting the cutting of a steel shell, which is used for the cutting of a steel shell to be cut. The guide plug 5 includes a support portion 51 for supporting an upper die for cutting, an open end guide section 52 abutting against the inner wall of the open end of the steel shell to be cut, and a body guide section 53 extending into the body of the steel shell to be cut; a body limiting section 531 abutting against the inner wall of the head of the steel shell to be cut is provided at the bottom of the body guide section 53. The guide plug 5 is connected to the cutting upper mold 6 through the support part 51. When the cutting is working, the open end guide section 53 is against the inner wall of the open end of the steel shell 7 to be cut, and the body guide section 53 extends into the body to correct the position of the steel shell during the cutting process. The body limiting section 531 is set at the bottom of the body guide section 53, which is against the inner wall of the head of the steel shell 7 to be cut. Therefore, during the cutting process, the open end guide section 52 and the body limiting section 531 simultaneously press and limit the open end of the steel shell and the head of the steel shell, thereby improving the verticality of the guide plug 5 and the steel shell 7 to be cut, reducing the swing amplitude of the steel shell, and reducing the swing offset of the cutting position, thereby reducing the shoulder height difference of the steel shell after cutting and improving the cutting quality of the steel shell.

[0034] In a specific embodiment of the present case, the guide height 54 of the guide plug 5 is the total length of the opening end guide section 52, the body guide section 53 and the body limit section, and the guide height 54 is equal to the inner shoulder height of the steel shell 7 to be cut. Figure 2 As shown, when the guide plug 5 is in use, the support portion 51 thereof supports the upper incision die 6 and the incision die handle 8, and the guide plug 5 is sent into the steel shell 7 to be incised through the incision die handle 8. During the incision process, the upper cutting edge of the upper incision die 6 cuts the connection position between the steel shell and the waste head. Since the guide plug 5 extends into the steel shell, it is necessary to control the guide length 54 of the guide plug 5 to avoid that the upper cutting edge cannot cut normally after the body limiting section 531 abuts against the inner wall of the steel shell head. The guide length 54 of the guide plug 5 is the total length of the opening end guide section 52, the body guide section 54 and the body limiting section 531. The guide length 54 should be avoided to be too long or too short. If it is too long, the incision cannot be effectively cut, and if it is too short, the purpose of ensuring the verticality of the steel shell cannot be achieved.

[0035] In this embodiment, the control guide height 54 is equal to the inner shoulder height 29' of the steel shell 7 to be cut. The shoulder height 24' is the target height of the steel shell after cutting, which is the height from the top of the steel shell to the outer wall of its head after cutting. The inner shoulder height 29' is the inner side height of the steel shell, which is the height from the inner wall of the head of the steel shell to the top of the steel shell, and is equal to the difference between the shoulder height of the steel shell and the head wall thickness 30' of the inner wall of the head. Figure 2In the figure, the inner shoulder height 29' = shoulder height 24' - head wall thickness 30'. By controlling the guide height 54 of the guide plug 5, after the guide plug 5 is inserted into the steel shell 7 to be cut, the position where the upper cutting edge of the cutting upper die 6 abuts against the inner wall of the steel shell 7 to be cut is the target shoulder height of the steel shell after forming; at the same time, it is also ensured that during the cutting process, the guide plug abuts against the inner wall of the head and the opening end of the steel shell at the same time, thereby ensuring the verticality of the steel shell to be cut during the cutting process to the greatest extent.

[0036] In a specific embodiment of the present case, the carcass limiting section 531 is a limiting column of a cylindrical structure whose outer diameter is smaller than the inner diameter of the carcass. The inner diameter of the carcass section of the steel shell 7 to be cut is smaller than the inner diameter of the carcass of the steel shell to be cut, so as to avoid wear and scratches on the inner wall of the steel shell to be cut during the cutting process, and also facilitate the smooth removal of the guide plug from the steel shell after the cutting. Since the carcass limiting end is located at the bottom of the carcass guide section and extends into the head of the steel shell to be cut, it is necessary to control the convenience of removing the carcass limiting section. The outer diameter of the carcass limiting section is smaller than the inner diameter of the steel shell carcass, and is set as a limiting column of a cylindrical structure to ensure that it fits with the inner wall plane of the head, and it is easy to ensure verticality.

[0037] Of course, the carcass limiting section can be set as a polygonal structure, and the connection stability between the carcass limiting section and the carcass guiding section must be ensured, and a space for the head of the fixing screw in the guide plug to be clamped is reserved.

[0038] In a specific embodiment of the present case, the carcass limiting section is a limiting sleeve whose bottom abuts against the inner wall of the head of the steel shell to be cut. The fixing screw of the guide plug is installed from its bottom and connected to the cutting die handle to connect and lock the cutting upper die. The head of the fixing screw is located at the bottom of the guide plug. In order to facilitate the connection stability between the carcass limiting section and the carcass guiding section, the carcass limiting section is set as a limiting sleeve. A through hole for accommodating the head of the fixing screw is set in the limiting sleeve. The carcass limiting section and the carcass guiding section can be connected and locked by threading or clamping.

[0039] In a preferred embodiment of the present case, the body limiting section 531 and the body guiding section 53 are an integrated structure. The body limiting section and the body guiding section are an integrated structure. During processing, the height of the body guiding section 53 can be directly processed to extend into the steel shell 7 to be cut and abut against the inner wall of the steel shell head. On the one hand, processing is used to avoid adding multiple parts to affect the difficulty of controlling the height of the guide plug. At the same time, the integrated structure is easy to process and can be formed in one time, reducing the difficulty of processing.

[0040] In a specific embodiment of the present case, a screw mounting hole 55 is provided in the guide plug 5 along its radial direction, and a recessed groove 55 is provided at the bottom of the body guide section 53, which is coaxially arranged with the screw mounting hole 55 and accommodates the screw head. The guide plug 5 is connected to the cut die handle 8 through a fixing screw 9, and a screw mounting hole 55 is provided in the guide plug 5, and a recessed groove 56 is provided at the bottom of the body guide section 53 along its radial direction, and the fixing screw 9 can be installed from the bottom of the guide plug, and the head of the fixing screw 9 falls into the recessed groove to avoid interference with the support plane at the bottom of the guide plug.

[0041] It should be noted that the integral body guide section 53 and the body limit section 531 are described as separate components for ease of description, and the two are integral structures. As for the guide height, the body guide section 53 and the body limit section 531 do not affect the statement that the guide height is the same as the inner shoulder height of the steel shell because they refer to different positions.

[0042] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A guide plug for assisting steel shell incision, used for incision of steel shell to be incised, characterized in that: The guide plug includes a support portion for supporting the upper die of the cut, an open end guide section that abuts against the inner wall of the open end of the steel shell to be cut, and a body guide section that extends into the body of the steel shell to be cut; a body limiting section is provided at the bottom of the body guide section that abuts against the inner wall of the head of the steel to be cut; The guide height of the guide plug is the total length of the opening end guide section, the body guide section and the body limit section, and the guide height is equal to the inner shoulder height of the steel shell to be cut; The carcass limiting section is a limiting column of a cylindrical structure whose outer diameter is smaller than the inner diameter of the carcass; The carcass limiting section is a limiting sleeve whose bottom abuts against the inner wall of the head of the steel shell to be cut; The carcass limiting section and the carcass guiding section are an integrated structure; A screw mounting hole is provided in the guide plug along its radial direction, and a recessed groove which is coaxially arranged with the screw mounting hole and accommodates the screw head is provided at the bottom of the carcass guide section.

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