Trimming and discharging assembly and trimming die

Abstract

The utility model relates to the technical field of trimming dies, and discloses a trimming discharging assembly and a trimming die. The trimming die of the trimming and discharging assembly comprises a first abutting structure arranged on the upper die; the second abutting structure is arranged on the lower die and used for placing a workpiece; the ejector rod is in sliding connection with the second abutting structure through the first elastic piece in the height direction of the second abutting structure. One end of the driving piece is connected with the upper die; in the mold closing process of the upper mold, the driving piece drives the ejector rod to move downwards and compress the first elastic piece; the limiting piece is arranged on the second abutting structure; in the downward moving process of the ejector rod, the limiting piece and the ejector rod are limited in an abutting mode so as to limit springback of the first elastic piece. The limiting piece can also be separated from the ejector rod; the cutting piece is arranged on the upper die and / or the lower die and used for cutting the redundant part of the workpiece. The trimming die comprises a trimming and discharging assembly. According to the technical scheme, the technical problem that a workpiece is easily clamped in the lower die in the prior art can be solved.

Description

Technical Field

[0001] This utility model relates to the field of edge trimming mold technology, and in particular to an edge trimming unloading component and an edge trimming mold. Background Technology

[0002] Trimming dies are specialized tooling used to remove excess edge material from workpieces after forming. They typically consist of a precision-fitted upper and lower die, and are powered by a press to achieve efficient shearing. They can precisely control the punching gap to ensure cut quality and are suitable for finishing automotive body panels, forging burrs, or injection molding flash.

[0003] In related technologies, the cut workpiece is prone to getting stuck in the lower mold, affecting the removal of the workpiece. Utility Model Content

[0004] This application discloses a trimming and unloading assembly and a trimming mold to solve the technical problem in the related art that the workpiece is easily stuck in the lower mold.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] In a first aspect, this application provides a trimming and unloading assembly for use in a trimming die, comprising:

[0007] The first abutment structure is located in the upper mold;

[0008] The second abutment structure is located in the lower mold and is used to place the workpiece;

[0009] The push rod is slidably connected to the second abutment structure via the first elastic element along the height direction of the second abutment structure;

[0010] The driving component is connected to the upper mold at one end; during the mold closing process, the driving component drives the ejector rod to move downward and compress the first elastic element.

[0011] A limiting member is provided in the second abutting structure; during the downward movement of the push rod, the limiting member and the push rod abut and limit each other to restrict the rebound of the first elastic member; the limiting member can also be separated from the push rod so that the elastic member drives the push rod to push the workpiece placed in the second abutting structure out.

[0012] A cutting element, set in the upper and / or lower die, used to cut off excess parts of a workpiece.

[0013] In some embodiments, the driving component includes a connecting rod and a moving block, the connecting rod being connected to the upper mold, and the moving block being slidably disposed on the second abutment structure via a second elastic element;

[0014] During the mold closing process, the connecting rod contacts the moving block, causing the moving block to move toward the ejector pin, thereby driving the ejector pin to compress the first elastic element.

[0015] In some designs, at least one contact surface of the connecting rod and the moving block has a first inclined surface;

[0016] And / or, the moving block and the top rod, at least one of their contact surfaces having a second inclined surface.

[0017] In some designs, the limiting element includes a stop portion and a third elastic element. The stop portion is slidably disposed on the second abutment structure via the third elastic element. The stop portion is used to stop and limit the push rod to restrict the rebound of the first elastic element.

[0018] In some designs, the second abutment structure has a through groove, and one side of the stop portion has a protrusion extending out of the through groove;

[0019] And / or, the push rod has a snap-fit ​​portion that mates with the stop portion;

[0020] And / or, the top of the push rod is padded;

[0021] And / or, the upper die and / or lower die are provided with a limit rod for limiting the maximum downward stroke of the upper die.

[0022] In some designs, the cutting component includes a first cutting tool, which is disposed on the upper die;

[0023] And / or, the cutting part includes a second cutting tool disposed on the lower die.

[0024] In some designs, the first abutting structure is slidably connected to the upper mold along the height direction of the upper mold and can move between a first position and a second position;

[0025] During the process of the upper and lower molds closing, the first abutting structure moves from the first position to the second position.

[0026] In some designs, the top of the first abutting structure is provided with a first guide post, and the first abutting structure is slidably connected to the upper mold through the first guide post.

[0027] In some designs, a connecting plate is provided on the top of the first guide post, and a second guide post is provided on the upper mold. The connecting plate is slidably fitted to the second guide post and connected to the upper mold through a fourth elastic element.

[0028] Secondly, this application also provides a trimming die, including the trimming unloading assembly of the first aspect.

[0029] The technical solution adopted in this utility model can achieve the following beneficial effects:

[0030] In this application's trimming and unloading assembly, the driving component, through mechanical linkage with the ejector pin during upper mold closing, converts the vertical movement of the upper mold into the downward movement of the ejector pin, forcing the ejector pin to compress the first elastic element to store elastic potential energy. A limiting component rigidly contacts the ejector pin at the end of its downward stroke, forming a physical barrier to lock the ejector pin's position and forcing the first elastic element to remain in a compressed, energy-storing state, thus preventing the elastic potential energy of the first elastic element from being released prematurely during mold separation between the upper and lower molds. After the upper and lower molds have separated, the limiting component and the ejector pin are separated, allowing the compressed first elastic element to quickly release its stored elastic potential energy, driving the ejector pin to slide upward along the second abutment structure and contact the workpiece, thereby ejecting the workpiece placed on the second abutment structure and reducing the probability of the workpiece getting stuck in the second abutment structure. Attached Figure Description

[0031] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is the isometric view of the trimming die disclosed in some embodiments of this application. Figure 1 ;

[0033] Figure 2 yes Figure 2 Enlarged view of point A in the middle;

[0034] Figure 3 This is the isometric view of the trimming die disclosed in some embodiments of this application. Figure 2 ;

[0035] Figure 4 This is a top view of the trimming die disclosed in some embodiments of this application;

[0036] Figure 5 yes Figure 4 A cross-sectional view of the AA plane;

[0037] Figure 6 yes Figure 5 Enlarged view of point B in the middle.

[0038] In the picture:

[0039] 100 - Upper mold, 110 - First abutting structure, 120 - First guide post, 130 - Connecting plate, 140 - Fourth elastic element, 150 - Second guide post;

[0040] 200 - Lower mold, 210 - Second abutment structure, 211 - Through groove, 220 - Limiting rod;

[0041] 300-Top rod, 310-Second inclined surface, 320-Snap-fit ​​part, 330-First elastic element;

[0042] 400-Driver, 410-Connecting rod, 411-First inclined surface, 420-Moving block, 430-Second elastic element;

[0043] 500 - Limiting element, 510 - Stopping part, 511 - Protrusion, 520 - Third elastic element.

[0044] 600 - Cutting part, 610 - First cutting tool, 620 - Second cutting tool;

[0045] 700 - Workpiece. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0047] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0048] During the process of trimming workpieces, the inventors discovered that due to different processing requirements, some workpieces were placed at a greater depth in the lower mold. The cut workpieces may get stuck due to the elastic deformation of the surrounding materials, making it easy for the cut workpieces to get stuck in the lower mold and affecting the removal of the workpieces.

[0049] The following is in conjunction with the appendix Figures 1 to 6 The present application provides a detailed description of a cutting and unloading assembly and a cutting mold through specific embodiments and application scenarios.

[0050] Some embodiments of this application disclose a cutting and unloading assembly applied to a cutting mold, including a first abutting structure 110, a second abutting structure 210, a push rod 300, a driving member 400, a limiting member 500, and a cutting member 600.

[0051] like Figure 1 , Figure 3 and Figure 5 As shown, the first abutting structure 110 is disposed on the upper mold 100, and the second abutting structure 210 is disposed on the lower mold 200, and is used to place the workpiece 700. After the lower mold 200 and the upper mold 100 are closed, the first abutting structure 110 and the second abutting structure 210 respectively stop the workpiece 700, forcing the workpiece 700 into a stable stress state before cutting, effectively suppressing elastic slippage and stress release during the shearing process.

[0052] like Figure 5 and Figure 6 As shown, the ejector rod 300 is slidably connected to the second abutment structure 210 along the height direction of the second abutment structure 210 via the first elastic element 330. Through its cooperation with the first elastic element 330, the ejector rod 300 compresses the first elastic element 330 during the mold closing process of the upper mold 100 and the lower mold 200, allowing the first elastic element 330 to store elastic potential energy. During the mold separation process of the upper mold 100 and the lower mold 200, the elastic potential energy released by the first elastic element 330 drives the ejector rod 300 to move upwards, ejecting the cut workpiece 700 from the lower mold 200, thus solving the mold jamming problem caused by deformation or friction in traditional molds.

[0053] In this embodiment, the second abutment structure 210 is provided with a first sliding groove arranged along its own height direction, and the top rod 300 is slidably disposed in the first sliding groove to realize the sliding connection between the top rod 300 and the second abutment structure 210.

[0054] In this preferred embodiment, the first elastic element 330 is a spring.

[0055] like Figure 1 , Figure 3 and Figure 5 As shown, one end of the drive component 400 is connected to the upper mold 100, and during the mold closing process of the upper mold 100, the drive component 400 drives the ejector rod 300 to move downward and compress the first elastic element 330. When the upper mold 100 closes, the drive component 400, through mechanical linkage with the ejector rod 300, converts the vertical movement of the upper mold 100 into the downward movement of the ejector rod 300, forcing the ejector rod 300 to compress the first elastic element 330 to store elastic potential energy.

[0056] like Figure 6As shown, the limiting member 500 is disposed on the second abutment structure 210; during the downward movement of the ejector rod 300, the limiting member 500 abuts and limits the ejector rod 300 to restrict the rebound of the first elastic member 330. The limiting member 500 makes rigid contact with the ejector rod 300 at the end of its downward stroke, forming a physical block to lock the position of the ejector rod 300, forcing the first elastic member 330 to remain in a compressed and stored energy state, so as to prevent the elastic potential energy of the first elastic member 330 from being released prematurely during the mold separation process of the upper mold 100 and the lower mold 200.

[0057] The limiting member 500 can also be separated from the ejector rod 300, so that the elastic member drives the ejector rod 300 to eject the workpiece 700 placed on the second abutment structure 210. After the upper mold 100 and the lower mold 200 are separated, the limiting member 500 and the ejector rod 300 are separated, so that the compressed first elastic member 330 can quickly release the stored elastic potential energy, drive the ejector rod 300 to slide upward along the second abutment structure 210 and contact the workpiece 700, thereby ejecting the workpiece 700 placed on the second abutment structure 210.

[0058] like Figure 1 , Figure 3 and Figure 5 As shown, a cutting element 600 is disposed on the upper mold 100 and / or the lower mold 200 for cutting off the excess portion of the workpiece 700. The cutting element 600 is used to cut off the excess portion of the workpiece 700. After the upper mold 100 and the lower mold 200 are closed, under the pressure of the upper mold 100, the cutting element 600 cuts the workpiece 700 located outside the first abutment structure 110 and the second abutment structure 210 to remove the excess portion of the workpiece 700.

[0059] like Figure 5 and Figure 6 As shown, the driving component 400 includes a connecting rod 410 and a moving block 420. The connecting rod 410 is connected to the upper mold 100, and the moving block 420 is slidably disposed on the second abutment structure 210 via a second elastic member 430. During the mold closing process of the upper mold 100, the connecting rod 410 contacts the moving block 420, causing the moving block 420 to move towards the ejector rod 300 and compress the second elastic member 430, thereby driving the ejector rod 300 to compress the first elastic member 330. The driving component 400 is rigidly connected to the upper mold 100 via the connecting rod 410. When the upper mold 100 closes, it pushes the moving block 420 to slide along the second abutment structure 210, causing the moving block 420 to continuously press down after contacting the ejector rod 300, forcing the ejector rod 300 to stop and be limited at the limiting member 500. After the upper mold 100 and the lower mold 200 separate, under the action of the second elastic element 430, the moving block 420 moves toward the end away from the ejector rod 300, so that the moving block 420 separates from the ejector rod 300, so as to avoid the situation where the moving block 420 presses against the ejector rod 300, causing the first elastic element 330 to be unable to release its elastic potential energy.

[0060] In this embodiment, the second abutment structure 210 is provided with a second through hole communicating with the first through hole, and the moving block 420 is slidably disposed in the second through hole to realize the sliding connection between the moving block 420 and the second abutment structure 210.

[0061] In this embodiment, the second elastic element 430 is a spring.

[0062] like Figure 6 As shown, at least one contact surface of the connecting rod 410 and the moving block 420 has a first inclined surface 411. The first inclined surface 411 of the contact surface of the connecting rod 410 and the moving block 420 decomposes the vertical clamping force of the upper mold 100 into a horizontal component and a vertical component through a wedge mechanism, driving the moving block 420 to slide directionally along the second abutment structure 210.

[0063] In this preferred embodiment, the contact surfaces of the connecting rod 410 and the moving block 420 each have a first inclined surface 411.

[0064] like Figure 6 As shown, at least one contact surface of the movable block 420 and the push rod 300 has a second inclined surface 310. The second inclined surface 310 of the contact surface of the movable block 420 and the push rod 300 decomposes the horizontal movement of the movable block 420 into a horizontal component force and a vertical component force through a wedge mechanism, driving the push rod 300 to slide directionally along the second abutment structure 210.

[0065] In this preferred embodiment, the contact surfaces of the movable block 420 and the top rod 300 each have a second inclined surface 310.

[0066] like Figure 6 As shown, the limiting member 500 includes a stop portion 510 and a third elastic member 520. The stop portion 510 is slidably disposed on the second abutment structure 210 via the third elastic member 520. The stop portion 510 is used to stop and limit the ejector rod 300 to restrict the rebound of the first elastic member 330. The stop portion 510 floats elastically on the second abutment structure 210 via the third elastic member 520. During the mold closing stage of the upper mold 100 and the lower mold 200, when the ejector rod 300 is pressed down, the stop portion 510 is squeezed and compressed by the side wall of the ejector rod 300 until the third elastic member 520 resets, so that the stop portion 510 and the ejector rod 300 form a rigid stop, thereby restricting the release of elastic potential energy of the first elastic member 330.

[0067] In this embodiment, the third elastic element 520 is a spring.

[0068] In this embodiment, the second abutting structure 210 is provided with a third sliding groove that communicates with the first sliding groove, and the stop part 510 is slidably disposed in the third sliding groove through the third elastic member 520 so that the stop part 510 is slidably connected with the second abutting structure 210.

[0069] like Figure 2 As shown, the second abutment structure 210 is provided with a through groove 211, and one side of the stop portion 510 has a protrusion 511 extending out of the through groove 211. After the upper mold 100 and the lower mold 200 are separated, the operator moves the stop portion 510 through the protrusion 511, so that the stop portion 510 is separated from the ejector rod 300. After the first elastic member 330 loses the limitation of the stop portion 510, it releases elastic potential energy to drive the ejector rod 300 to move upward, so as to eject the workpiece 700 placed in the second abutment structure 210.

[0070] like Figure 6 As shown, the ejector pin 300 has a locking portion 320 that mates with the stop portion 510. During the mold closing phase of the upper mold 100 and lower mold 200, when the ejector pin 300 is pressed down, the stop portion 510 is compressed by the side wall of the ejector pin 300, compressing the third elastic element 520. When the locking portion 320 aligns with the stop portion 510,

[0071] The top of the push rod 300 is equipped with a soft pad. The soft pad can absorb the instantaneous impact force between the push rod 300 and the workpiece 700, thus protecting the workpiece 700 and preventing it from being scratched.

[0072] like Figure 1 and Figure 3 As shown, the upper mold 100 and / or the lower mold 200 are provided with a limiting rod 220 for limiting the maximum downward stroke of the upper mold 100. Through the rigid contact between the limiting rod 220 and the upper mold 100 and / or the lower mold 200, the downward endpoint of the upper mold 100 is precisely controlled, and the maximum compression stroke of the cutting part 600 during mold closing is forcibly limited, so as to avoid the situation where the upper mold 100 moves too far and damages the workpiece 700.

[0073] In some embodiments, the limiting rod 220 is disposed at the bottom of the upper mold 100.

[0074] In some embodiments, the limiting rod 220 is disposed on the top of the lower mold 200.

[0075] In some embodiments, limit rods 220 are provided at the bottom of the upper mold 100 and the top of the lower mold 200, respectively.

[0076] like Figure 1 , Figure 3 and Figure 5 As shown, the cutting part 600 includes a first cutter 610, which is disposed on the upper mold 100. During the process of the upper mold 100 and the lower mold 200 closing, the pressure of the upper mold 100 causes the first cutter 610 to contact and cut off the part of the workpiece 700 to be cut.

[0077] like Figure 3 and Figure 5As shown, the cutting part 600 includes a second cutter 620, which is disposed on the lower mold 200. During the mold closing process of the upper mold 100 and the lower mold 200, the pressure of the upper mold 100 causes the second cutter 620 to contact and cut off the part of the workpiece 700 to be cut.

[0078] like Figure 4 and Figure 5 As shown, the first abutting structure 110 can move between a first position and a second position along the height direction of the upper mold 100; during the mold closing process of the upper mold 100 and the lower mold 200, the first abutting structure 110 moves from the first position to the second position. Initially, the first abutting structure 110 is located in the first position. During the mold closing process of the upper mold 100 and the lower mold 200, the first abutting structure 110 contacts the workpiece 700 and applies pressure to it. As the mold closing continues, the first abutting structure 110 causes plastic compression of the surface layer of the workpiece 700 before shearing, reducing the elasticity of the workpiece 700. When the first abutting structure 110 moves to the second position, the cutting element 600 cuts the workpiece 700.

[0079] like Figure 5 As shown, the top of the first abutting structure 110 is provided with a first guide post 120, and the first abutting structure 110 is slidably connected to the upper mold 100 through the first guide post 120. The first guide post 120 on the top of the first abutting structure 110 and its slidable connection with the upper mold 100 guide the movement of the first abutting structure 110 in the height direction, ensuring that the first abutting structure 110 slides smoothly.

[0080] Correspondingly, the upper mold 100 has a guide hole, and the first guide post 120 is slidably disposed in the guide hole to realize the sliding connection between the first abutting structure 110 and the upper mold 100.

[0081] In this embodiment, multiple first guide posts 120 can be provided to further increase the smoothness of the sliding of the first abutment structure 110. It should be noted that the number of first guide posts 120 can be flexibly set according to actual usage requirements, and this embodiment does not limit this.

[0082] like Figure 1 and Figure 5 As shown, a connecting plate 130 is provided at the top of the first guide post 120, and the connecting plate 130 is connected to the upper mold 100 through a fourth elastic element 140. When the upper mold 100 and the lower mold 200 are closed, during the process of the first abutting structure 110 moving from the first position to the second position, the connecting plate 130 compresses the fourth elastic element 140, and the fourth elastic element 140 stores elastic potential energy; after the upper mold 100 and the lower mold 200 are separated, the fourth elastic element 140 releases the elastic potential energy, causing the first abutting structure 110 to move from the second position to the first position.

[0083] In this embodiment, there are multiple fourth elastic elements 140, which can be flexibly set according to actual usage requirements. This embodiment does not limit this.

[0084] In this embodiment, the fourth elastic element 140 is preferably a spring.

[0085] like Figure 1 As shown, the upper mold 100 is provided with a second guide post 150, and the connecting plate 130 is slidably fitted to the second guide post 150. By setting the second guide post 150 in the upper mold 100, the connecting plate 130 is kept horizontal during the up and down movement, eliminating the problem of asynchronous movement of multiple first guide posts 120 caused by the tilt of the connecting plate 130.

[0086] Some embodiments of this application also provide a trimming die, such as Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, it includes a cutting and unloading assembly.

[0087] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0088] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0089] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A trimming and unloading assembly, applied to a trimming mold, characterized in that, include: The first abutment structure is located in the upper mold; The second abutment structure is located in the lower mold and is used to place the workpiece; The push rod is slidably connected to the second abutment structure via a first elastic element along the height direction of the second abutment structure; A driving component, one end of which is connected to the upper mold; during the mold closing process, the driving component drives the push rod to move downward and compress the first elastic element; A limiting member is disposed on the second abutting structure; during the downward movement of the push rod, the limiting member and the push rod abut and limit each other to restrict the rebound of the first elastic member; the limiting member can also be separated from the push rod so that the elastic member drives the push rod to push the workpiece placed on the second abutting structure out. A cutting element, disposed on the upper mold and / or the lower mold, is used to cut off excess portions of the workpiece.

2. The edge-cutting unloading assembly according to claim 1, characterized in that, The driving component includes a connecting rod and a moving block. The connecting rod is connected to the upper mold, and the moving block is slidably disposed on the second abutment structure via a second elastic element. During the mold closing process, the connecting rod contacts the moving block, causing the moving block to move toward the ejector rod, thereby driving the ejector rod to compress the first elastic element.

3. The edge-cutting unloading assembly according to claim 2, characterized in that, The connecting rod and the moving block, at least one contact surface of both has a first inclined surface; And / or, at least one contact surface of the moving block and the top rod has a second inclined surface.

4. The edge-cutting unloading assembly according to claim 2, characterized in that, The limiting member includes a stop portion and a third elastic member. The stop portion is slidably disposed on the second abutment structure through the third elastic member. The stop portion is used to stop and limit the first elastic member by the push rod.

5. The edge-cutting unloading assembly according to claim 4, characterized in that, The second abutting structure is provided with a through groove, and one side of the stop portion has a protrusion extending out of the through groove; And / or, the push rod has a snap-fit ​​portion that mates with the stop portion; And / or, the top of the top rod is provided with a soft pad; And / or, the upper die and / or the lower die are provided with a limiting rod for limiting the maximum downward stroke of the upper die.

6. The edge-cutting unloading assembly according to claim 1, characterized in that, The cutting component includes a first cutting tool, which is disposed on the upper mold; And / or, the cutting element includes a second cutting tool disposed on the lower die.

7. The edge-cutting unloading assembly according to claim 1, characterized in that, The first abutting structure is slidably connected to the upper mold along the height direction of the upper mold, and can move between a first position and a second position; During the process of the upper mold and the lower mold closing, the first abutting structure moves from the first position to the second position.

8. The edge-cutting unloading assembly according to claim 7, characterized in that, The top of the first abutting structure is provided with a first guide post, and the first abutting structure is slidably connected to the upper mold through the first guide post.

9. A cutting and unloading assembly according to claim 8, characterized in that, The top of the first guide post is provided with a connecting plate, the upper mold is provided with a second guide post, the connecting plate is slidably fitted to the second guide post, and is connected to the upper mold through a fourth elastic element.

10. A trimming mold, characterized in that, Includes the edge-cutting unloading assembly as described in any one of claims 1-9.

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