Precision terminal material strip bending forming system
By employing cutting and welding techniques, the problems of material waste and deformation in the terminal strip forming process have been solved, achieving efficient material strip utilization and a smooth production process, thereby reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AUDIX TECH XIAMEN CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-14
AI Technical Summary
In the existing terminal strip forming process, there is a serious waste of strip at the head of the roll changer and the tail of the bending die, which affects production efficiency and cost. In addition, the strip is prone to deformation, which leads to problems in subsequent processes.
By employing a terminal strip cutting mold and a terminal strip welding mechanism, the cutting and welding technologies ensure that the strip at the roll changing head and the bending mold tail are accurately cut and connected to form a complete strip, avoiding deformation and improving production efficiency.
This reduces the head and tail material loss ratio of each roll, saves roll changeover time, ensures the roll passes smoothly through the bending and forming die, and improves production efficiency and quality.
Smart Images
Figure CN224123672U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of terminal strip forming, and in particular to the improved equipment involved in the bending forming process of precision terminal strip after one forming. Background Technology
[0002] Currently, in the terminal strip forming process, some terminal strips require secondary injection molding. After the first molding, the terminal already has a molded injection-molded product on the terminal strip. At this point, the terminal strip still needs to go through a bending process in a bending die before entering the secondary molding. When changing the terminal strip at the bending die stage, the waste of terminal strip at the beginning of the roll and at the end of the bending die is a common phenomenon in the industry. This wastes both the terminal and the already molded product, greatly affecting the mold production efficiency and cost. Utility Model Content
[0003] To address the problems existing in the prior art, this utility model provides a precision terminal strip bending and forming system. This system can save terminal strip at the head of the roll change and at the tail of the bending die, reducing the head and tail material loss ratio of each roll of terminal strip. The system also prevents terminal strip deformation, thereby ensuring smooth subsequent production operations, maintaining quality, and improving production efficiency.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A precision terminal strip bending and forming system, characterized in that it includes a terminal strip cutting mold, a terminal strip welding mechanism, and a bending and forming mold; wherein,
[0006] The terminal strip cutting mold includes a lower template and a punch fixed on the upper mold assembly. The lower template is provided with a die that matches the punch, and a left cutting positioning pin group and a right cutting positioning pin group are provided on the left and right sides of the die. The left cutting positioning pin group positions the terminal strip with a rated step length of the roll head at the station of the die to cut out the head of the terminal strip. The right cutting positioning pin group positions the terminal strip with a rated step length of the bending die tail at the station of the die to cut out the tail of the terminal strip.
[0007] The terminal strip welding mechanism includes a left bakelite fixing block and a right bakelite fixing block fixed on a bakelite support block, and a copper welding block disposed between the two. The copper welding block is provided with a left welding positioning pin group and a right welding positioning pin group, the distance between the two being the same as the distance between the left cutting positioning pin group and the right cutting positioning pin group. It also includes a left cover plate and a right cover plate respectively positioned above the left bakelite fixing block and the right bakelite fixing block. During welding, the left cover plate and the right cover plate are respectively placed on the terminal strip at the coil changing head and the terminal strip at the tail of the bending die. The head and tail of the welding terminal strip are aligned and connected on the copper welding block to form a welding line, so as to connect the terminal strip at the coil changing head and the terminal strip at the tail of the bending die into a whole strip and punch it through the bending forming die.
[0008] As described above, in a precision terminal strip bending forming system, the die is composed of a left convex groove and a right convex groove connected and communicating with each other, so as to form a left station of the die at the position of the left convex groove and a right station of the die at the position of the convex groove; a terminal strip with a rated pitch length of the roll-changing head is placed on the left station, and a terminal strip with a rated pitch length of the bending die tail is placed on the right station.
[0009] In the precision terminal strip bending and forming system described above, the left convex groove is a convex groove with a shorter narrow portion and a longer wide portion, and the right convex groove is a convex groove with a longer narrow portion and a shorter wide portion.
[0010] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:
[0011] Firstly, this utility model cuts the terminal strip head and the terminal strip tail of the bending die at the changing head and the tail of the terminal strip positioned on the left and right cutting positioning pin groups. In the next welding process, the terminal strip head and the terminal strip tail are welded together end to end in the terminal strip welding mechanism to form a whole strip. This whole strip reduces the head and tail material loss ratio of each roll of terminal strip, saves changing time, and ensures that the whole strip is smoothly punched through the bending forming die, thus improving quality and efficiency in completing the bending process.
[0012] Secondly, the spacing between the left welding positioning pin group and the right welding positioning pin group of this utility model is the same as the spacing between the left cutting positioning pin group and the right cutting positioning pin group, so as to ensure that the positioning hole spacing of the welded whole strip is the same as the rated step distance of the raw material strip. In this way, the step distance will not be wrong and it can be punched smoothly from the bending forming die.
[0013] Thirdly, the left and right cover plates of this utility model stabilize and press the terminal strip at the head of the roll-up and the terminal strip at the tail of the bending die, thus preventing the terminal strip from lifting up and avoiding deformation of the terminal strip. This ensures the smooth progress of subsequent bending operations and improves production efficiency.
[0014] Fourth, the concave mold of this utility model is composed of a left convex groove and a right convex groove connected and communicating as a whole, so as to completely cut off the terminal material strip at the head of the roll and the terminal product on the terminal material strip at the tail of the bending mold, so that the head and tail of the terminal material strip are connected to form a complete material strip. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0016] Figure 1 This is a three-dimensional structural diagram of the cutting terminal strip mold of this utility model;
[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the cutting terminal strip mold of this utility model;
[0018] Figure 3 This is a side view cross-sectional structural diagram of the cutting terminal strip mold of this utility model;
[0019] Figure 4 This is a three-dimensional structural diagram of the concave mold of this utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of the terminal strip cutting mold of this utility model cutting terminal strip head;
[0021] Figure 6 This is a three-dimensional structural diagram of the terminal strip cutting mold of this utility model cutting terminal strip tail.
[0022] Figure 7 This is a three-dimensional structural schematic diagram of the terminal strip welding mechanism of this utility model;
[0023] Figure 8 This is a top view cross-sectional structural diagram of the terminal strip welding mechanism of this utility model;
[0024] Figure 9 This is a schematic diagram of the main cross-sectional structure of the terminal strip welding mechanism of this utility model;
[0025] Figure 10 This is a side view sectional structural schematic diagram of the terminal strip welding mechanism of this utility model;
[0026] Figure 11 This is a schematic diagram of the structure of the precision terminal strip bending and forming system of this utility model. Detailed Implementation
[0027] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0028] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.
[0029] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.
[0030] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.
[0031] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".
[0032] Now combined Figure 1 Figure 11 illustrates a precision terminal strip bending and forming system of this utility model, comprising a terminal strip cutting mold 100, a terminal strip welding mechanism 200, and a bending forming mold. The terminal strip cutting mold 100 is used to cut the strip, which includes a terminal strip A at the rewinding head and a terminal strip B at the bending mold tail. The terminal strip A at the rewinding head is the head strip of a newly rewound strip, and the terminal strip B at the bending mold tail is the tail strip of the bending forming mold.
[0033] Please see Figures 1 to 6 ,and Figure 11 The present invention provides a cutting terminal strip mold 100, which includes a lower mold assembly 110, an upper mold assembly 120, a spring 130, and a punch 140.
[0034] The lower die assembly 110 includes a lower template 111 and a lower die base 112 fixedly connected. The lower template 111 is provided with a die cavity 113, a left cutting positioning pin group 114, and a right cutting positioning pin group 115. The distance between the left cutting positioning pin group 114 and the right cutting positioning pin group 115 is a rated step length. The die cavity 113 is matched with the shape of the punch 140, and the left cutting positioning pin group 114 and the right cutting positioning pin group 115 are respectively disposed on the left and right sides of the die cavity 113. When changing rolls of terminal strip after each production cycle, the left cutting positioning pin group 114 places the terminal strip A with a rated step length at the changing head position on the die 113 to cut out the terminal strip head A1; the right cutting positioning pin group 115 places the terminal strip B with a rated step length at the bending die tail position on the die 113 to cut out the terminal strip tail B1. The rated step length refers to a rated step length during the strip transport process.
[0035] The present invention's die 113 is integrally formed by connecting and communicating a left convex groove 113A and a right convex groove 113B, thereby forming the left working position of the die 113 at the position of the left convex groove 113A and the right working position of the die 113 at the position of the convex groove 113B. Furthermore, the left convex groove 113A is a convex groove having a shorter narrow portion 113A1 and a longer wide portion 113A2, and the right convex groove 113B is a convex groove having a longer narrow portion 113B1 and a shorter wide portion 113B2. That is, the length of the shorter narrow portion 113A1 of the left convex groove 113A is less than the length of the longer narrow portion 113B1 of the right convex groove 113B; and the length of the longer wide portion 113A2 of the left convex groove 113A is greater than the length of the shorter wide portion 113B2 of the right convex groove 113B. Specifically, the longer width portion 113A2 of the left convex groove 113A and the shorter width portion 113B2 of the right convex groove 113B are connected and integrally formed to form the concave mold 113 of this utility model. Terminal products on the terminal strip A at the head of the roll and the terminal strip B at the tail of the bending mold are completely cut off, correspondingly forming a terminal strip head A1 and a terminal strip tail B1, while retaining a connecting portion between the terminal strip head A1 and the terminal strip tail B1.
[0036] The width of the shorter narrow portion 113A1 of the left convex groove 113A is the same as the width of the longer narrow portion 113B1 of the right convex groove 113B, forming a narrow portion width H of the same width. This narrow portion width H is smaller than the width of the terminal strip A at the rewinding head and the terminal strip B at the tail of the bending die. The width of the longer wide portion 113A2 of the left convex groove 113A is the same as the width of the shorter wide portion 113B2 of the right convex groove 113B, forming a wide portion width L of the same width. This wide portion width L is larger than the width of the terminal strip A at the rewinding head and the terminal strip B at the tail of the bending die.
[0037] The upper mold assembly 120 includes an upper mold base assembly and a stripping assembly elastically connected by the spring 140. Under the action of the press, the upper mold assembly drives the punch 140 fixed on the upper mold assembly to pass through the stripping assembly and act on the die 113 on the lower mold plate 111. When each roll of terminal strip is produced and the roll is changed, the terminal strip A at the roll changing head and the terminal strip B at the bending die tail, which are positioned on the left cutting positioning pin group 114 and the right cutting positioning pin group 115, are cut. The terminal strip head A1 and the terminal strip tail B1 are cut out according to a rated step length. In the next welding process, the terminal strip head A1 and the terminal strip tail B1 are welded together end to end in the terminal strip welding mechanism 200.
[0038] Specifically, the upper mold base assembly includes an upper mold base 121 and an upper clamping plate 122 that are fixedly connected, and the stripping assembly includes an upper cover plate 123 and a stripping plate 124 that are fixedly connected. One end of the spring 130 is fixed to the upper mold base 121, and the other end passes through the upper clamping plate 122 and is fixed to the upper cover plate 123.
[0039] The upper die holder 121 is mounted on a manual press via a locking block 150. When the cutting operation is started, a terminal strip A with a rated step length of the roll head is first placed on the left side of the die 113, and the left cutting positioning pin group 114 fixes the terminal strip A with the roll head above the left convex groove 113A. The manual press then cuts out the terminal strip head A1. Next, a terminal strip B with a rated step length of the bending die tail is placed on the right side of the die 113, and the right cutting positioning pin group 115 fixes the terminal strip B with the bending die tail above the right convex groove 113B. The manual press then cuts out the terminal strip tail B1.
[0040] The terminal strip cutting mold 100 operates by matching and combining the punch 140 and the die 113 to cut two processes: terminal strip A at the beginning of the roll and terminal strip B at the end of the bending die. The left and right cutting positioning pin groups 114 and 115 of the lower mold each have at least two cutting positioning pins. The left and right cutting positioning pin groups 114 and 115 respectively position the terminal strip A at the beginning of the roll and the terminal strip B at the end of the bending die. First, one strip is manually placed on a cutting positioning pin group. When the upper mold assembly 120 descends, the strip ejector plate 124 presses down on the strip. As the upper mold assembly 120 continues to descend, the spring 130 contracts until the upper clamping plate 122 contacts the upper cover plate 123. At this point, the upper mold assembly 120 and the lower mold assembly 110 close, completing the cutting process. When the mold is opened, the upper clamping plate 122 and the upper cover plate 123 separate first. At this time, the strip is still fixed. As the manual press rises, the stripping plate 124 separates from the lower template 111, and the mold opening is completed.
[0041] Please see Figures 7 to 11 The terminal strip welding mechanism 200 of this utility model includes a welding pen, a bakelite support block 210, and a cover plate assembly 220. It also includes a copper welding block 230 fixed to the bakelite support block 210, a left bakelite fixing block 240, and a right bakelite fixing block 250. The copper welding block 230 is positioned between the left bakelite fixing block 240 and the right bakelite fixing block 250. The spot welding station using the welding pen of the welding machine is located on the copper welding block 230. Because the welding pen needs to conduct electricity, the copper welding block 230 is made of copper for conductivity. The left bakelite fixing block 240, the right bakelite fixing block 250, and the bakelite support block 210 are made of bakelite for insulation and safety, thus completing the welding process.
[0042] The copper welding block 230 is provided with a left welding positioning pin group 231 and a right welding positioning pin group 232. The spacing between the left welding positioning pin group 231 and the right welding positioning pin group 232 is the same as the spacing between the left cutting positioning pin group 114 and the right cutting positioning pin group 115. Each of the left welding positioning pin group 231 and the right welding positioning pin group 232 has at least two cutting positioning pins. The left welding positioning pin group 231 and the right welding positioning pin group 232 respectively serve to position the terminal strip A cut by the terminal strip cutting die 100 at the roll-changing head and the terminal strip B at the bending die tail. During welding, the terminal strip A cut by the positioning terminal strip die 100 and the terminal strip B cut by the bending die are manually placed on the left welding positioning pin group 231 and the right welding positioning pin group 232. The terminal strip head A1 of the terminal strip A and the terminal strip tail B1 of the bending die are aligned and connected on the copper welding block 230 to form a welding line 0. Then, the welding pen D is used to weld at the welding line 0 to connect the terminal strip A of the terminal strip A and the terminal strip B of the bending die into a whole strip. This whole strip not only saves terminal strip and changing time, but also ensures that the whole strip is smoothly punched through the bending forming die, efficiently completing the bending process. Because the distance between the left welding positioning pin group 231 and the right welding positioning pin group 232 is the same as the distance between the left cutting positioning pin group 114 and the right cutting positioning pin group 115, it ensures that the positioning hole distance of the welded strip is the same as the rated step distance of the raw material strip. In this way, the step distance will not be wrong and it can be punched smoothly from the bending forming die.
[0043] The cover plate assembly 220 includes a left cover plate 221 and a right cover plate 222. When the terminal strip A cut by the terminal strip cutting mold 100 at the rewinding head and the terminal strip B at the bending mold tail are positioned on the left welding positioning pin assembly 231 and the right welding positioning pin assembly 232, the left cover plate 221 and the right cover plate 222 are respectively placed on the terminal strip A at the rewinding head and the terminal strip B at the bending mold tail, and the left cover plate 221 and the right cover plate 222 are respectively placed above the left bakelite fixing block 240 and the right bakelite fixing block 250. The terminal strip A at the rewinding head and the terminal strip B at the bending mold tail, which are stably covered by the left cover plate 221 and the right cover plate 222, will not lift up, thus preventing deformation of the terminal strip and ensuring the smooth progress of subsequent bending operations, thereby improving production efficiency.
[0044] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A precision terminal strip bending and forming system, characterized in that, It includes a terminal strip cutting mold (100), a terminal strip welding mechanism (200), and a bending forming mold; wherein, The terminal strip cutting mold (100) includes a lower template (111) and a punch (140) fixed on the upper mold assembly (120). The lower template (111) is provided with a die (113) that matches the punch (140), and a left cutting positioning pin group (114) and a right cutting positioning pin group (115) provided on the left and right sides of the die (113). The left cutting positioning pin group (114) positions the terminal strip with a rated step length of the roll head on the station of the die (113) to cut out the head of the terminal strip. The right cutting positioning pin group (115) positions the terminal strip with a rated step length of the bending die tail on the station of the die (113) to cut out the tail of the terminal strip. The terminal strip welding mechanism (200) includes a left bakelite fixing block (240) and a right bakelite fixing block (250) fixed on a bakelite support block (210), and a copper welding block (230) disposed between the two; the copper welding block (230) is provided with a left welding positioning pin group (231) and a right welding positioning pin group (232), the distance between the two being the same as the distance between the left cutting positioning pin group (114) and the right cutting positioning pin group (115); it also includes components respectively placed on the left bakelite fixing block (240) and the right welding positioning pin group (250). 0) and the left cover plate (221) and right cover plate (222) above the right bakelite fixing block (250); during welding, the left cover plate (221) and right cover plate (222) are respectively covered on the terminal strip at the head of the rewinding head and the terminal strip at the tail of the bending die. The head and tail of the terminal strip are aligned and connected on the copper welding block (230) to form a welding line, so as to connect the terminal strip at the head of the rewinding head and the terminal strip at the tail of the bending die into a whole strip and punch it through the bending forming die.
2. The precision terminal strip bending and forming system according to claim 1, characterized in that, The die (113) is formed by connecting and communicating with a left convex groove and a right convex groove to form a left station of the die (113) at the position of the left convex groove and a right station of the die (113) at the position of the convex groove; a terminal strip of a roll changer with a rated pitch length is placed on the left station, and a terminal strip of a bending die tail with a rated pitch length is placed on the right station.
3. The precision terminal strip bending and forming system according to claim 2, characterized in that, The left convex groove is a convex groove with a shorter narrow portion and a longer wide portion, and the right convex groove is a convex groove with a longer narrow portion and a shorter wide portion.