Traceless cutting die device and coffee machine side wall plate bending device

Abstract

The utility model discloses a traceless cutting die device and a coffee machine side wall plate bending device, and relates to the technical field of die bending forming, the traceless cutting die device comprises an upper die, the upper die comprises a cutting head on the lower side, and a shaping cutting edge is arranged on the lower side of the cutting head; a middle forming convex part is arranged on the upper side of the lower die, a traceless strip is arranged on the middle forming convex part, and concave arc-shaped bent surfaces are arranged on the left side and the right side of the middle forming convex part; the lower side of the rotary forming block is provided with a convex arc-shaped bending surface, the convex arc-shaped bending surface is located on the concave arc-shaped bending surface, and the upper side of the rotary forming block is provided with a forming plane; in the bending process of the upper die, due to the fact that the rotary forming block rotates along with the upper die, the friction force between the rotary forming block and a workpiece is reduced, the angular position line part abuts against the traceless strip, and flaws can be prevented from being formed at the end of the angular position line.

Description

Technical Field

[0001] This utility model relates to the field of mold bending and forming technology, and in particular to a non-marking die-cutting device and a coffee machine side panel bending device. Background Technology

[0002] Coffee machines typically use brewing components to extract coffee, and then the cup is placed on a drip tray, where the brewed coffee flows into the cup. Therefore, the drip tray, being used to hold the cup, needs to be located on the lower front side of the coffee machine, protruding slightly. Current bending dies use a die-stamping method to bend sheet metal to form the side wall of the drip tray, creating an arc-shaped corner through a V-groove. However, in practice, this type of die, after stamping, not only tends to produce imperfections such as the corner line at the center of the V-groove not being straight enough, but also creates flaws at the two contact points between the workpiece and the sides of the V-groove. These flaws not only affect the appearance but can also easily scratch the user. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a non-marking die-cutting device and a coffee machine side panel bending device.

[0004] According to a first aspect of the present invention, a non-marking die-cutting device includes: a workpiece, the workpiece after bending includes a wall panel portion and a corner line; an upper die, serving as a moving die located on the upper side, the upper die including a lower cutting head, the lower side of the cutting head being provided with a shaped cutting edge; a lower die, serving as a fixed die located on the lower side, the upper die and the lower die cooperating to bend the workpiece, the upper side of the lower die being provided with a central forming protrusion, the central forming protrusion being provided with a non-marking strip, the left and right sides of the central forming protrusion being provided with concave arc-shaped bending surfaces; and a rotary forming block, the rotary forming block having a convex arc-shaped bending surface on its lower side, the convex arc-shaped bending surface being located on the concave arc-shaped bending surface, the rotary forming block having a forming plane on its upper side, the rotary forming block being capable of rotating up and down along the concave arc-shaped bending surface.

[0005] According to some embodiments of the present invention, the upper side of the rotary forming block is provided with an outer edge portion, the outer edge portion extends horizontally toward the outer side of the lower mold, and the upper side of the outer edge portion has an outer edge forming surface.

[0006] According to some embodiments of the present invention, the upper left and right sides of the lower mold are provided with outer edge support portions, and the outer edge support portions abut against the lower side of the outer edge portion.

[0007] According to some embodiments of the present invention, a seamless strip mounting groove is provided on the upper side of the intermediate shaped protrusion, and the seamless strip is inserted into the seamless strip mounting groove on the lower side.

[0008] According to some embodiments of this utility model, the left and right sides of the seamless strip mounting groove are provided with slots, and the left and right sides of the lower side of the seamless strip are provided with edges, which lock the slots.

[0009] According to some embodiments of this utility model, a lubrication hole is provided on the concave arc-shaped bending surface, and a lubricating oil adding device is connected to the lubrication hole.

[0010] According to some embodiments of the present invention, a non-marking film is laid on the upper side of the rotary forming block.

[0011] According to some embodiments of this utility model, the rotational forming blocks on the left and right sides are mirror-symmetrical.

[0012] According to some embodiments of this utility model, the axis of rotation of the rotary forming block when it rotates up and down coincides with the axis of the concave arc-shaped bending surface.

[0013] The non-marking die-cutting device according to the embodiments of this utility model has at least the following technical effects:

[0014] 1. During the bending process of the upper die, the rotating forming block rotates along with the bending block, which reduces the friction between the rotating forming block and the workpiece. This ensures that no indentation points are generated at the contact points between the forming planes on both sides and the lower side of the wall panel. The corner line part presses against the non-marking strip, which can prevent the corner line end from forming defect points. This can ensure that the bent workpiece has a better appearance and will not form defect points that could scratch the user.

[0015] 2. The outer edge forming surface design increases the contact area between the rotary forming block and the wall panel, ensuring better forming effect of the wall panel;

[0016] 3. The adhesive strip mounting slot facilitates the removal and installation of the adhesive strip, allowing for flexible replacement of the adhesive strip as needed;

[0017] 4. An external lubrication oil adding device is connected to the lubrication hole, which facilitates the injection of lubricating oil between the concave arc-shaped bending surface of the lower die and the convex arc-shaped bending surface of the rotary forming block, thereby reducing wear between the rotary forming block and the lower die.

[0018] The coffee machine side panel bending device according to the second aspect of the present invention includes the non-marking die device according to the first aspect of the present invention.

[0019] The coffee machine side panel bending device according to the present invention has at least the following beneficial effects: During the bending process of the upper mold, the friction between the rotating forming block and the coffee machine side panel is reduced because the rotating forming block rotates along with it. This ensures that no indentation points are generated at the contact points between the forming planes on both sides and the lower side of the panel. The corner line part abuts against the seamless strip, which can prevent the corner line end from forming defect points. This ensures that the bent coffee machine side panel has a better appearance and will not form defect points that could scratch the user.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] Additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a perspective view of the non-marking die-cutting device of this utility model;

[0023] Figure 2 This is the front view of the non-marking die-cutting device of this utility model;

[0024] Figure 3 yes Figure 1 Enlarged view of region A in the middle;

[0025] Figure 4 This is an exploded view of the upper mold in this utility model;

[0026] Figure 5 This is an exploded view of the lower mold in this utility model;

[0027] Figure 6 This is a schematic diagram illustrating the working principle of this utility model.

[0028] Figure label:

[0029] Workpiece 100, wall panel 110, corner line 120; upper mold 200, cutter head 210, shaping blade 211, cutter handle 220; lower mold 300, intermediate forming protrusion 310, non-marking strip mounting groove 311, slot 312, non-marking strip 320, top edge surface 321, retaining edge 322, concave arc bending surface 330, lubrication hole 331, outer edge support part 340, alignment slot 350; rotary forming block 400, convex arc bending surface 410, forming plane 420, outer edge part 430, outer edge forming surface 431, non-marking film 440; fixed seat 500, vertical clamping plate 510; lower mold base 600, alignment insert 610. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are 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.

[0032] In the description of this utility model, "multiple" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] The following is for reference. Figure 1 and Figure 2 This invention describes a non-marking die-cutting device according to an embodiment of the present invention.

[0035] like Figure 1 and Figure 2 As shown, the non-marking die-cutting device according to an embodiment of the present invention includes a workpiece 100, an upper die 200, a lower die 300, and a rotary forming block 400.

[0036] Reference Figure 2 , Figure 3The workpiece 100, after bending, includes a wall panel 110 and a corner line 120. The upper mold 200, as the moving mold, is located on the upper side. The upper mold 200 includes a lower cutter head 210, and a shaping blade 211 is provided on the lower side of the cutter head 210. The lower mold 300, as the fixed mold, is located on the lower side. The upper mold 200 and the lower mold 300 cooperate to bend the workpiece 100. The lower mold 300 has a middle forming protrusion 310 on its upper side, and a non-marking strip 320 is provided on the middle forming protrusion 310. The middle forming protrusion 310 has concave arc-shaped bending surfaces 330 on its left and right sides. The rotary forming block 400 has a convex arc-shaped bending surface 410 on its lower side, which is located on the concave arc-shaped bending surface 330. The rotary forming block 400 has a forming plane 420 on its upper side and can rotate up and down along the concave arc-shaped bending surface 330.

[0037] For example, such as Figure 1 and Figure 2 As shown, workpiece 100, after bending, includes a wall panel portion 110 and a corner line 120. (Refer to...) Figure 2 , Figure 3 The upper die 200, acting as the moving die, is located on the upper side. The upper die 200 includes a lower cutter head 210, with a shaping blade 211 positioned on its lower side. The lower die 300, acting as the fixed die, is located on the lower side. The upper die 200 and lower die 300 cooperate to bend the workpiece 100. The lower die 300 has a central forming protrusion 310 on its upper side, with a non-marking strip 320 on it. Concave arc-shaped bending surfaces 330 are provided on both sides of the central forming protrusion 310. The rotary forming block 400 has a convex arc-shaped bending surface 410 on its lower side, situated on the concave arc-shaped bending surface 330. A forming plane 420 is provided on the upper side of the rotary forming block 400. The rotary forming block 400 can rotate up and down along the concave arc-shaped bending surface 330.

[0038] In practical work, refer to Figure 6 The upper mold 200 is raised and put into standby mode, while the rotary forming block 400 on the lower mold 300 is placed flat and stationary. Then the sheet material is placed on the rotary forming block 400. Then the upper mold 200 is pressed down, and the shaping blade 211 of the cutter head 210 presses against the sheet material, bending it.

[0039] During the downward pressing of the upper mold 200, the rotary forming block 400 rotates accordingly. The forming plane 420 on the rotary forming block 400 presses against the lower side of the sheet material, thus cooperating with the upper mold 200 to bend the sheet material into the wall panel portion 110. Meanwhile, the shaping blade 211 presses against the sheet material to bend the corner line 120 portion.

[0040] The upper die 200 continues to press down until it abuts against the seamless strip 320 on the central forming protrusion 310, at which point the workpiece 100 is bent into the predetermined V-shape. During the bending process, the rotational forming block 400 rotates along with the workpiece 100, reducing the friction between the rotational forming block 400 and the workpiece 100. This ensures that no indentations are formed at the contact points between the forming planes 420 on both sides and the lower side of the wall panel portion 110. Furthermore, the corner line 120 abuts against the seamless strip 320, preventing the formation of defects at the ends of the corner line 120. This ensures a better appearance for the bent workpiece 100 and prevents defects from scratching the user.

[0041] In some embodiments of this utility model, reference is made to Figure 4 The non-marking die-cutting device of this utility model also includes a fixed base 500 and a vertical clamping plate 510. The upper die 200 also includes a cutter handle 220 on the upper side. The fixed base 500 and the vertical clamping plate 510 cooperate to clamp the cutter handle 220, thus realizing the fixed installation of the upper die 200 and facilitating the disassembly and replacement of the upper die 200.

[0042] In some embodiments of this utility model, the fixed base 500 and the vertical clamping plate 510 are connected by bolts.

[0043] In some embodiments of this utility model, reference is made to Figure 5 The present invention also includes a lower mold base 600, on which an alignment insert 610 is provided, and an alignment slot 350 is provided on the lower side of the lower mold 300. The alignment insert 610 is inserted into the alignment slot 350 to realize the alignment and installation of the lower mold 300.

[0044] In some embodiments of this utility model, the upper side of the rotary forming block 400 is provided with an outer edge portion 430, which extends horizontally outward toward the lower mold 300. The upper side of the outer edge portion 430 has an outer edge forming surface 431, which expands the contact area between the rotary forming block 400 and the wall panel portion 110, ensuring a better forming effect for the wall panel portion 110.

[0045] In some embodiments of this utility model, reference is made to Figure 2 , Figure 3 The lower mold 300 has outer edge support parts 340 on its upper left and right sides. The outer edge support parts 340 abut against the lower side of the outer edge part 430, so that the lower mold 300 can support the rotary forming block 400 for positioning through the outer edge support parts 340. The rotary forming block 400 is in a flat position when stationary, which facilitates the placement and alignment of the sheet metal.

[0046] In some embodiments of this utility model, the seamless strip 320 has a convex arc-shaped top edge surface 321 on its upper side. This ensures that when the corner line 120 part abuts against the top edge surface 321 of the seamless strip 320, the corner line 120 and the seamless strip 320 make more sufficient contact, which can ensure that the corner line 120 has a better forming effect.

[0047] In some embodiments of this utility model, reference is made to Figure 3 , Figure 5 The upper side of the middle protrusion 310 is provided with a traceless strip installation groove 311, and the lower side of the traceless strip 320 is inserted into the traceless strip installation groove 311, that is, the traceless strip 320 can be detached and installed, making it easy to replace the traceless strip 320 as needed.

[0048] In some embodiments of this utility model, the seamless strip mounting groove 311 is provided with slots 312 on both the left and right sides, and the seamless strip 320 is provided with retaining edges 322 on both the left and right sides of its lower side. The retaining edges 322 engage with the slots 312 to ensure that the seamless strip 320 is securely installed on the seamless strip mounting groove 311 and is not easily loosened. When the seamless strip 320 needs to be installed, the end of the seamless strip 320 slides into the seamless strip mounting groove 311 from the front / rear end position.

[0049] In some embodiments of this utility model, reference is made to Figure 5 A lubrication hole 331 is provided on the concave arc-shaped bending surface 330. The lubrication hole 331 is connected to an external lubricating oil adding device, which is used to inject lubricating oil between the concave arc-shaped bending surface 330 of the lower die 300 and the convex arc-shaped bending surface 410 of the rotary forming block 400, thereby reducing wear between the rotary forming block 400 and the lower die 300. Moreover, this also allows the rotary forming block 400 to automatically reset without the need for a reset structure (such as a spring).

[0050] In some embodiments of this utility model, reference is made to Figure 3 A non-marking film 440 is laid on the upper side of the rotational forming block 400 to further reduce wear on the workpiece. With the above design, the non-marking film 440 can be a non-marking film product with lower requirements.

[0051] In some embodiments of this utility model, the left and right rotating forming blocks 400 are mirror-symmetrical to ensure a more stable workpiece forming effect.

[0052] In some embodiments of this utility model, the axis of rotation of the rotary forming block 400 when it rotates up and down coincides with the axis of the concave arc-shaped bending surface 330, ensuring that the rotation process of the rotary forming block 400 is more stable and the rotary forming block 400 does not require additional connecting structures for fixation.

[0053] The coffee machine side panel bending device according to the second aspect of the present invention includes the non-marking die device according to the first aspect of the present invention.

[0054] According to the embodiments of the present invention, the coffee machine side panel bending device simplifies the structural complexity of the coffee machine side panel bending device by adopting the above-mentioned non-marking die device, making it easier to form the workpiece, facilitating the miniaturization design of the coffee machine side panel bending device, and improving production efficiency.

[0055] Other components and operations of the coffee machine side panel bending device according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0056] The following is for reference. Figure 1 and Figure 2 The following describes in detail a non-marking die-cutting device according to an embodiment of the present invention, using a specific example. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0057] like Figure 1 and Figure 2 As shown, the seamless die-cutting device of this utility model includes an upper die 200, a lower die 300, a rotary forming block 400, a fixing base 500, and a lower die base 600. The upper die 200 and the lower die 300 cooperate to complete the bending process of the workpiece 100. The bent workpiece 100 includes a wall panel portion 110 and a corner line 120.

[0058] The upper mold 200 is clamped and fixed to the vertical clamping plate 510 by the fixing base 500. The upper mold 200 includes a cutting head 210, a shaping cutting edge 211, and a cutting handle 220.

[0059] The lower mold 300 is mounted on the lower mold base 600. The lower mold 300 includes a central forming protrusion 310, a non-marking strip mounting groove 311, a slot 312, a non-marking strip 320, a top edge surface 321, a retaining edge 322, a concave arc-shaped bending surface 330, a lubrication hole 331, an outer edge support portion 340, and an alignment slot 350. The lower mold base 600 is provided with an alignment insert 610. The rotary forming block 400 is placed on the concave arc-shaped bending surface 330. The rotary forming block 400 is provided with a convex arc-shaped bending surface 410, a forming plane 420, an outer edge portion 430, an outer edge forming surface 431, and a non-marking film 440.

[0060] According to the embodiment of the present utility model, the seamless die-cutting device can achieve at least the following effects by setting it up as follows: during the bending process of the upper die 200, since the rotating forming block 400 rotates along with it, the friction between the rotating forming block 400 and the workpiece 100 is reduced, ensuring that no indentation points are generated at the contact points between the forming planes 420 on both sides and the lower side of the wall panel portion 110; the corner line 120 part abuts against the seamless strip 320, which can prevent the corner line 120 end from forming defect points, ensuring that the bent workpiece 100 has a better appearance and will not form defect points that could scratch the user.

[0061] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A non-marking die-cutting device, characterized in that, include: The workpiece (100), after bending, includes a wall panel (110) and a corner line (120). The upper mold (200) is located on the upper side as a moving mold. The upper mold (200) includes a lower cutter head (210), and a shaping blade (211) is provided on the lower side of the cutter head (210). The lower mold (300) is located on the lower side as a fixed mold. The upper mold (200) cooperates with the lower mold (300) to bend the workpiece (100). The lower mold (300) is provided with a middle forming protrusion (310) on the upper side. The middle forming protrusion (310) is provided with a non-marking strip (320). The middle forming protrusion (310) is provided with concave arc-shaped bending surfaces (330) on the left and right sides. A rotary forming block (400) has a convex arc-shaped bending surface (410) on its lower side, the convex arc-shaped bending surface (410) being located on the concave arc-shaped bending surface (330), and a forming plane (420) on its upper side. The rotary forming block (400) can rotate up and down along the concave arc-shaped bending surface (330).

2. The seamless die-cutting device according to claim 1, characterized in that, The upper side of the rotary forming block (400) is provided with an outer edge (430), the outer edge (430) extends horizontally toward the outside of the lower mold (300), and the upper side of the outer edge (430) has an outer edge forming surface (431).

3. The seamless die-cutting device according to claim 2, characterized in that, The lower mold (300) has outer edge support parts (340) on the left and right sides of the upper side, and the outer edge support parts (340) abut against the lower side of the outer edge part (430).

4. The seamless die-cutting device according to claim 1, characterized in that, The upper side of the intermediate shaped protrusion (310) is provided with a traceless strip mounting groove (311), and the lower side of the traceless strip (320) is inserted into the traceless strip mounting groove (311).

5. The seamless die-cutting device according to claim 4, characterized in that, The seamless strip mounting groove (311) is provided with slots (312) on the left and right sides, and the seamless strip (320) is provided with edges (322) on the left and right sides of the lower side, and the edges (322) lock the slots (312).

6. The seamless die-cutting device according to claim 1, characterized in that, A lubrication hole (331) is provided on the concave arc-shaped bending surface (330), and the lubrication hole (331) is connected to a lubricating oil adding device.

7. The seamless die-cutting device according to claim 1, characterized in that, The upper side of the rotational forming block (400) is covered with a non-marking film (440).

8. The seamless die-cutting device according to claim 1, characterized in that, The rotational forming blocks (400) on the left and right sides are mirror symmetrical.

9. The seamless die-cutting device according to claim 1, characterized in that, The axis of rotation of the rotary forming block (400) when it rotates up and down coincides with the axis of the concave arc-shaped bending surface (330).

10. A coffee machine side panel bending device, characterized in that, Includes the non-marking die-cutting device according to any one of claims 1 to 9.

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