Continuous stamping device

Abstract

The utility model provides a continuous stamping device, which relates to the technical field of stamping equipment and comprises a stamping die and an alignment detection mechanism. The multiple stamping dies are sequentially arranged and used for stamping a material belt with positioning holes, and each stamping die comprises an upper die assembly and a lower die assembly. The alignment detection mechanism comprises an alignment hole and an alignment assembly, the alignment hole is formed in at least one of the lower die assemblies, and the alignment assembly is arranged on the upper die assembly corresponding to the lower die assembly with the alignment hole; the alignment assembly comprises a conductive column and a contact pin, the contact pin is matched with the positioning hole and the alignment hole in an alignment mode, the material belt is electrically disconnected with the conductive column in the alignment state, and the material belt is electrically connected with the conductive column in the non-alignment state. The alignment detection mechanism limits downward punching of the punch of the upper die assembly through an emergency stop switch. Therefore, the device has the advantages that the device is slightly influenced by vibration, cannot be influenced by aluminum skimmings, dust and greasy dirt, and is accurate in detection result.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, and in particular to a continuous stamping device. Background Technology

[0002] For some casing materials that require multiple consecutive processing steps, such as battery covers and back panels for mobile phones and computers, continuous stamping devices have been invented to improve production efficiency. A continuous stamping device typically includes multiple stamping dies arranged in sequence, and a feeding mechanism that moves the material strip between the upper and lower die assemblies.

[0003] To avoid problems such as insufficient, excessive, or misaligned feeding of the material strip due to misfeeding or uneven feeding mechanisms, existing continuous stamping devices typically use photoelectric detection mechanisms to check the alignment of the material strip. However, this technical solution also has some shortcomings. For example, photoelectric detection is affected by press vibration, especially when stamping thick materials or performing large-area shearing with high shearing forces, which leads to inaccurate detection results. In addition, aluminum chips, dust, and oil contaminants during stamping can easily obstruct the detection head, causing misjudgments and resulting in inaccurate detection results.

[0004] Therefore, a continuous stamping device that is less affected by vibration, not affected by aluminum shavings, dust, or oil, and provides accurate test results needs to be designed. Utility Model Content

[0005] The purpose of this utility model is to provide a continuous stamping device that addresses the defects and shortcomings of the existing technology, thereby solving at least one of the aforementioned technical problems. It has the advantages of being less affected by vibration, not being affected by aluminum chips, dust, or oil stains, and providing accurate detection results.

[0006] To achieve the above objectives, this utility model provides a continuous stamping device, comprising:

[0007] A stamping die, consisting of multiple die components arranged sequentially for stamping strips with positioning holes, including an upper die assembly and a lower die assembly;

[0008] Alignment detection mechanism includes alignment hole and alignment component, the alignment hole being disposed in at least one of the lower mold components, and the alignment component being disposed in the upper mold component corresponding to the lower mold component having the alignment hole;

[0009] The alignment component includes a conductive post and a pin. The pin is disconnected from the conductive post when it is aligned with the positioning hole and the alignment hole and the strip is in the aligned state. When the strip is not aligned, it is connected to the conductive post. The alignment detection mechanism restricts the downward punching of the upper die component punch through an emergency stop switch.

[0010] Optionally, the alignment component further includes a mounting block, an insulating sleeve, and a conductive ball; the alignment component is configured on the upper mold assembly via the mounting block, the conductive post is configured within the mounting block via the insulating sleeve, the pin is movably configured on the mounting block, the conductive ball is configured at one end of the conductive post, and when the material strip is in an aligned state, the pin is disconnected from the conductive post, and when the material strip is in an unaligned state, the pin is electrically connected to the conductive post.

[0011] Optionally, the insulating sleeve is a stepped sleeve; the alignment assembly further includes a first elastic member sleeved on the outer periphery of the tubular portion of the insulating sleeve, with one end abutting against one end of the head of the insulating sleeve and the other end abutting against the conductive ball; the outer periphery of the pin is provided with an arc-shaped annular groove whose shape matches the conductive ball.

[0012] Optionally, the mounting block is vertically configured with a first stepped hole, and the pin is a stepped columnar body having a shape that matches the first stepped hole.

[0013] Optionally, the alignment component further includes a second elastic member disposed on the upper mold assembly, with one end abutting the upper end of the pin and the other end abutting the upper mold assembly.

[0014] Optionally, the mounting block is laterally configured with a second stepped hole, and the insulating sleeve is disposed in the second stepped hole; the alignment assembly further includes a sealing block vertically disposed within the mounting block for sealing the second stepped hole; the alignment detection mechanism is connected to the emergency stop switch via a wire that is connected at one end to the conductive post and passes through the sealing block.

[0015] Optionally, the alignment detection mechanism is disposed on the stamping die in the middle position.

[0016] Optionally, the upper mold assembly includes an upper cover plate, an upper mold base, an upper pad plate, an upper clamping plate, a stop plate, and a stripper plate connected sequentially from top to bottom; the lower mold assembly includes a lower mold base, a lower back plate, a lower pad plate, and a lower template plate connected sequentially from bottom to top; the alignment hole is vertically disposed on the lower template plate; the alignment assembly is disposed on the stripper plate; the upper mold base, the upper pad plate, the upper clamping plate, and the stop plate are provided with clearance holes to avoid the movement of the insert pin.

[0017] Optionally, the positioning holes are evenly spaced at the edge of the strip, and the alignment holes are located at the edge of the strip corresponding to the lower template.

[0018] Optionally, the continuous stamping apparatus further includes a feeding mechanism for conveying a strip of material to a plurality of sequentially arranged stamping dies for stamping.

[0019] Compared with the prior art, the advantages of this application are:

[0020] The alignment detection mechanism of this continuous stamping device includes an alignment hole disposed on at least one of the lower die components, and an alignment component disposed on the upper die component corresponding to the lower die component with the alignment hole, comprising a conductive post and a pin. The pin is electrically disconnected from the conductive post when aligned with the positioning hole and alignment hole on the strip, and electrically connected to the conductive post when the strip is misaligned. A signal indicating whether the strip is aligned is sent to an emergency stop switch, which then restricts the downward stroke of the upper die component's punch. Because this continuous stamping device determines whether there are problems such as insufficient, excessive, or misaligned strip feeding by checking the alignment of the pin, positioning hole, and alignment hole, rather than by photoelectric detection, it avoids the drawbacks of photoelectric detection devices. This results in advantages such as minimal impact from vibration, immunity to aluminum dust and oil contamination, and accurate detection results. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the continuous stamping device according to an embodiment of the present invention;

[0023] Figure 2 This is a partially exploded structural diagram of the continuous stamping device according to an embodiment of the present invention;

[0024] Figure 3 This is an exploded view of part of the structure of the stamping die according to an embodiment of the present utility model;

[0025] Figure 4 This is a top view of the continuous stamping device according to an embodiment of the present invention;

[0026] Figure 5 for Figure 4 A sectional view along line AA.

[0027] Figure 6 for Figure 5 A magnified view of a section at point B in the middle;

[0028] Figure 7 This is a schematic diagram of the alignment component according to an embodiment of the present invention;

[0029] Figure 8 This is a top view of the mounting block according to an embodiment of the present invention;

[0030] Figure 9 for Figure 8 A cross-sectional view along the CC line.

[0031] Explanation of reference numerals in the attached figures

[0032] 100 - Continuous stamping device;

[0033] 1-Stamping die; 11-Upper die assembly; 111-Upper cover plate; 112-Upper die base; 113-Upper backing plate; 114-Upper clamping plate; 115-Stop plate; 116-Stripping plate; a-Assembly slot; 12-Lower die assembly; 121-Lower pad; 122-Lower die base; 123-Lower back plate; 124-Lower backing plate; 125-Lower template; o3-Allowing hole;

[0034] 21-Alignment assembly; 211-Conductive post; 212-Pin; b-Arc-shaped annular groove; 213-Mounting block; o4-First stepped hole; o5-Second stepped hole; 214-Insulating sleeve; 214a-Tube section; 214b-Head; 215-Conductive ball; 216-First elastic element; 217-Sealing block; 218-Wire; o2-Alignment hole;

[0035] 3-Material strip; o1-Positioning hole;

[0036] c - Discharge end. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "back," "side," and "circumferential" used in this utility model to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used to distinguish multiple parts or structures with the same or similar structures, and do not indicate any special limitation on the arrangement order or connection relationship.

[0039] Please refer to Figures 1 to 9This utility model provides a continuous stamping device 100, including: a stamping die 1 and an alignment detection mechanism.

[0040] Multiple stamping dies 1 are arranged sequentially for stamping the strip 3 with positioning holes o1. Optionally, the multiple stamping dies 1 may include at least some of the following arranged sequentially along the forward direction of the strip 3: punching and trimming stamping die, trimming stamping die, drawing and punching stamping die, long side full-size stamping die, short side full-size stamping die, corner stamping die, corner straightening stamping die, flatness stamping die, long side hole punching die, and short side hole punching die, to perform impact, stretching, bending and other processes on the strip 3, and finally obtain the desired product shell material.

[0041] The above-mentioned stamping dies 1 all include an upper die assembly 11 and a lower die assembly 12; the strip 3 passes through the upper die assembly 11 and the lower die assembly 12 of each of the above-mentioned stamping dies 1 in sequence, and through the joint action of the upper die assembly 11 and the lower die assembly 12, the strip 3 completes the processes of punching, trimming, stretching, cornering, corner straightening, leveling, and punching long side holes.

[0042] The alignment detection mechanism includes an alignment hole o2 and an alignment component 21. The alignment hole o2 is disposed on at least one of the lower die components 12, and the alignment component 21 is disposed on the upper die component 11 corresponding to the lower die component 12 having the alignment hole o2. In this embodiment, the alignment detection mechanism including the alignment hole o2 and the alignment component 21 is disposed only on the stamping die 1 located in the middle position. Of course, in other embodiments, the alignment detection mechanism may also be disposed on the stamping die 1 in other positions, but preferably, the alignment detection mechanism is disposed on the stamping die 1 in the middle and near the discharge end c. Of course, in other embodiments, the alignment detection mechanism may also be disposed on multiple stamping dies 1 to achieve multi-point positioning. No specific limitation is made here.

[0043] Optionally, the alignment component 21 includes a conductive post 211 and a pin 212. The pin 212 is disconnected from the conductive post 211 when aligned with the positioning hole o1 and the alignment hole o2, and the strip 3 is in the aligned state; it is electrically connected to the conductive post 211 when the strip 3 is not aligned. The alignment detection mechanism restricts the downward movement of the upper die assembly 11 punch (not shown) via an emergency stop switch (not shown in the figure). That is, if the pin 212 can pass through the positioning hole o1 on the strip 3 and partially enter the alignment hole o2 of the lower die assembly 12, it indicates that the strip 3 is in the aligned state. At this time, the pin 212 is not in contact with the conductive post 211, and the pin 212 and the conductive post 211 are in a non-conductive state; at this time, the alignment detection mechanism does not send an emergency stop signal to the emergency stop switch, and the emergency stop switch does not restrict the downward movement of the upper die assembly 11 punch. If the strip 3 is not aligned, the pin 212 will press against the strip 3. At this time, since the strip 3 is also a conductor, the pin 212 is electrically connected to the conductive post 211. After the conductive post 211 conducts electricity, it sends an emergency stop signal to the emergency stop switch. The emergency stop switch restricts the downward stroke of the punch of the upper die assembly 11.

[0044] Because the continuous stamping device 100 determines whether the material strip 3 has problems such as insufficient feeding, excessive feeding, or misalignment by checking the alignment of the pin 212, positioning hole o1, and alignment hole o2, rather than by photoelectric detection, it avoids the drawbacks of photoelectric detection devices. This gives it the advantages of being less affected by vibration, not being affected by aluminum dust or oil, and providing accurate detection results.

[0045] For assembling the alignment component 21, optionally, please refer to Figure 3 , Figure 6 and Figure 7In this embodiment, the alignment component 21 further includes a mounting block 213, an insulating sleeve 214, and a conductive ball 215. The alignment component 21 is configured on the upper mold component 11 via the mounting block 213. Specifically, the upper mold component 11 has an assembly groove a for fixing the mounting block 213, facilitating the assembly and fixation of the mounting block 213. The conductive post 211 is configured inside the mounting block 213 via the insulating sleeve 214. That is, the conductive post 211 does not directly contact the mounting block 213, but is assembled inside the mounting block 213 with insulation separation via the insulating sleeve 214. The pin 212 is configured on the mounting block 213 and can move up and down. The up and down movement of the pin 212 enables the detection of whether the material strip 3 is aligned by cooperating with the material strip 3 and the lower mold component 12. The conductive ball 215 is disposed at one end of the conductive post 211. When the material strip 3 is in the aligned state, the pin 212 is disconnected from the conductive post 211. When the material strip 3 is in the misaligned state, the pin 212 is electrically connected to the conductive post 211. That is, when the pin 212 passes through the positioning hole o1 and the alignment hole o2, the conductive ball 215 and the conductive post 211 are not in contact. When the pin 212 is in the misaligned state and abuts against the material strip 3, one end of the conductive ball 215 abuts against the conductive post 211 and the other end abuts against the pin 212. In this way, a conductive path is constructed. The alignment detection mechanism sends a limiting signal to the emergency stop switch to limit the downward stroke of the punch of the upper die assembly 11.

[0046] To achieve the aforementioned function of the conductive ball 215, optionally, please refer to... Figure 6 and Figure 7 In this embodiment, the insulating sleeve 214 is a stepped sleeve. The alignment assembly 21 also includes a first elastic member 216. The first elastic member 216 is sleeved on the outer periphery of the tube portion 214a of the insulating sleeve 214, with one end abutting against one end of the head 214b of the insulating sleeve 214 and the other end abutting against the conductive ball 215. The outer periphery of the pin 212 is provided with an arc-shaped annular groove b whose shape matches that of the conductive ball 215. Thus, when the material strip 3 is aligned, the pin 212 extends through the positioning hole o1 into the alignment hole o2. At this time, the first elastic element 216 is in the reset state, pushing the conductive ball 215 to partially occupy the arc-shaped groove b of the pin 212. The conductive ball 215 is not in contact with the conductive post 211, thus disconnecting the electrical connection between the conductive post 211 and the pin 212. However, if the material strip 3 is not aligned, the non-arc-shaped groove b of the pin 212 contacts the conductive ball 215, squeezing the conductive ball 215 towards the conductive post 211 until it contacts, thus establishing the conductive connection between the conductive post 211 and the pin 212. At this time, the first elastic element 216 is in the compressed state. Optionally, the first elastic element 216 is a compression spring.

[0047] To limit the travel of pin 212, optionally, please refer to... Figure 9In this embodiment, the mounting block 213 is vertically configured with a first stepped hole o4. The pin 212 is a stepped columnar body with a shape matching the first stepped hole o4. This allows it to be configured in the first stepped hole o4 in a way that allows it to move up and down while maintaining a limited fit.

[0048] To enable the up-and-down movement of the pin 212, optionally in this embodiment, the alignment component 21 further includes a second elastic element (not shown in the figure). The second elastic element is disposed on the upper mold assembly 11, with one end abutting against the upper end of the pin 212 and the other end abutting against the upper mold assembly 11. Specifically, the second elastic element may be a compression spring.

[0049] Alternatively, please refer to Figure 6 , Figure 7 and Figure 9 In this embodiment, the mounting block 213 is laterally configured with a second stepped hole o5, and the insulating sleeve 214 is disposed in the second stepped hole o5. The alignment assembly 21 also includes a sealing block 217 vertically disposed within the mounting block 213 for sealing the second stepped hole o5; the alignment detection mechanism is connected to the emergency stop switch via a wire 218 connected at one end to a conductive post 211 and passing through the sealing block 217. Specifically, the insulating sleeve 214 can be configured in the second stepped hole o5 by interference fit. The sealing block 217 can prevent the pin 212 and the insulating sleeve 214 from detaching from the second stepped hole o5 under the stamping vibration of the stamping die 1.

[0050] Alternatively, please refer to Figure 5 and Figure 6 In this embodiment, the upper mold assembly 11 includes an upper cover plate 111, an upper mold base 112, an upper pad plate 113, an upper clamping plate 114, a stop plate 115, and a stripper plate 116 connected sequentially from top to bottom; the lower mold assembly 12 includes a lower mold base 122, a lower back plate 123, a lower pad plate 124, and a lower template 125 connected sequentially from bottom to top; an alignment hole o2 is vertically disposed on the lower template 125; an alignment component 21 is disposed on the stripper plate 116; the upper mold base 112, the upper pad plate 113, the upper clamping plate 114, and the stop plate 115 are provided with clearance holes o3 to avoid the movement of the pin 212. Optionally, the lower mold assembly 12 also includes a lower pad foot 121 located at the lower part of the lower mold base 122.

[0051] Alternatively, please refer to Figure 3 In this embodiment, the positioning holes o1 are evenly spaced at the edge of the strip 3, and the alignment holes o2 are positioned on the lower template 125 at the edge of the strip 3. Of course, in other embodiments, the positioning holes o1 are evenly spaced at the middle of the strip 3, and the alignment holes o2 are positioned on the lower template 125 at the middle of the strip 3; this is not specifically limited here.

[0052] To facilitate the transport of the material strip 3, optionally, in this embodiment, the continuous stamping device 100 further includes a feeding mechanism (not shown in the figure). The feeding mechanism is disposed on one side of the conveying end of the continuous stamping device 100 and is used to convey the material strip 3 to a plurality of sequentially arranged stamping dies 1 for stamping. Specifically, the feeding mechanism is prior art, and therefore will not be elaborated on here.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the substance of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A continuous stamping device, characterized in that, include: The stamping die (1) is arranged in sequence with multiple strips (3) with positioning holes (o1) for stamping, including an upper die assembly (11) and a lower die assembly (12); The alignment detection mechanism includes an alignment hole (o2) and an alignment component (21), the alignment hole (o2) being disposed in at least one of the lower mold components (12), and the alignment component (21) being disposed in the upper mold component (11) corresponding to the lower mold component (12) having the alignment hole (o2); The alignment component (21) includes a conductive post (211) and a pin (212). The pin (212) is disconnected from the conductive post (211) when it is aligned with the positioning hole (o1) and the alignment hole (o2) and the strip (3) is in the aligned state. When the strip (3) is not aligned, it is connected to the conductive post (211). The alignment detection mechanism restricts the downward punching of the upper die component (11) punch by an emergency stop switch.

2. The continuous stamping apparatus as described in claim 1, characterized in that, The alignment component (21) further includes a mounting block (213), an insulating sleeve (214), and a conductive ball (215). The alignment component (21) is configured on the upper mold component (11) via the mounting block (213). The conductive post (211) is configured within the mounting block (213) via the insulating sleeve (214). The pin (212) is movably configured on the mounting block (213). The conductive ball (215) is configured at one end of the conductive post (211) and disconnects the pin (212) from the conductive post (211) when the material strip (3) is in the aligned state, and makes the pin (212) electrically connected to the conductive post (211) when the material strip (3) is in the misaligned state.

3. The continuous stamping apparatus as described in claim 2, characterized in that, The insulating sleeve (214) is a stepped sleeve; the alignment assembly (21) further includes a first elastic element (216) sleeved on the outer periphery of the tube portion (214a) of the insulating sleeve (214), with one end abutting one end of the head (214b) of the insulating sleeve (214) and the other end abutting the conductive ball (215); the outer periphery of the pin (212) is provided with an arc-shaped annular groove (b) whose shape matches the conductive ball (215).

4. The continuous stamping apparatus as described in claim 3, characterized in that, The mounting block (213) is vertically configured with a first stepped hole (o4), and the pin (212) is a stepped columnar body with a shape matching the first stepped hole (o4).

5. The continuous stamping apparatus as described in claim 4, characterized in that, The alignment component (21) further includes a second elastic member disposed on the upper mold component (11), with one end abutting the upper end of the pin (212) and the other end abutting the upper mold component (11).

6. The continuous stamping apparatus as described in claim 5, characterized in that, The mounting block (213) is laterally configured with a second stepped hole (o5), and the insulating sleeve (214) is configured in the second stepped hole (o5); the alignment assembly (21) also includes a sealing block (217) vertically configured in the mounting block (213) for sealing the second stepped hole (o5); the alignment detection mechanism is connected to the emergency stop switch through a wire (218) that is connected to the conductive post (211) at one end and passes through the sealing block (217).

7. The continuous stamping apparatus as described in claim 1, characterized in that, The alignment detection mechanism is disposed on the stamping die (1) which is in the middle position.

8. The continuous stamping apparatus as described in claim 1, characterized in that, The upper mold assembly (11) includes an upper cover plate (111), an upper mold base (112), an upper pad plate (113), an upper clamping plate (114), a stop plate (115), and a stripper plate (116) connected from top to bottom; the lower mold assembly (12) includes a lower mold base (122), a lower back plate (123), a lower pad plate (124), and a lower template plate (125) connected from bottom to top; the alignment hole (o2) is vertically arranged on the lower template plate (125); the alignment component (21) is arranged on the stripper plate (116); the upper mold base (112), the upper pad plate (113), the upper clamping plate (114), and the stop plate (115) are provided with clearance holes (o3) to avoid the movement of the pin (212).

9. The continuous stamping apparatus as described in claim 8, characterized in that, The positioning holes (o1) are evenly spaced at the edge of the strip (3), and the alignment holes (o2) are located at the edge of the lower template (125) corresponding to the edge of the strip (3).

10. The continuous stamping apparatus as described in claim 8, characterized in that, It also includes a feeding mechanism configured to convey the material belt (3) to a plurality of sequentially arranged stamping dies (1) for stamping.

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