A portable molding die

Abstract

The utility model belongs to the field of forming die, provide a kind of portable forming die, comprising: lower die holder is equipped with profile block and floating platform, profile block is fixed in lower die holder, to form left assembly plate and right assembly plate;Floating platform surrounds profile block, and is used to lift material belt and the component formed thereon to the top of profile block;Anti-drop piece is located on floating platform, and forms a limit cavity with it.Compared with prior art, the utility model has the advantages that through the cooperative structure of floating platform and profile block, combined with auxiliary block, the extrusion forming mechanism of vertical to horizontal motion is realized, and the limit cavity formed by cooperating adjustable anti-drop piece, the left and right assembly plate on the continuous material belt is integrated, high-precision, anti-falling stamping forming is realized, the forming depth and position of inner recess are accurately controlled, the production efficiency is significantly improved, the positioning error caused by multi-process transfer is avoided, and the product precision and quality stability are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of molding molds, and specifically relates to a convenient molding mold. Background Technology

[0002] With the rapid development of the machinery industry, especially in automotive parts, paired left and right assembly plates are often widely used as the main support or connecting structures.

[0003] like Figure 1 As shown, the left and right assembly plates typically have an L-shaped bent main body plate, a tension plate extending horizontally from the bottom of the main body plate (used to enhance structural rigidity or provide an installation interface), and at least one internal groove on the vertical side wall of the main body plate. Due to the complex shape, high dimensional accuracy requirements, and large batch demand of such parts, existing processing technology mostly relies on single-process compound mold combination production. This also requires manual or robotic transfer of workpieces between different molds to complete each stage of forming sequentially. This not only causes the superposition of forming errors but also seriously affects the assembly symmetry (the aesthetics of the overall structure) and structural stability. The overall downtime is long, which is not conducive to the stable operation of automated production lines. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a convenient molding mold that is simple in structure, has good stability, and can accurately and continuously form molds.

[0005] The objective of this utility model can be achieved by addressing the following technical problem: a convenient molding die is provided for molding a pair of left and right assembly plates, each of which has a main body plate and a stretching plate connected to each other. The main body plate is L-shaped. The molding die includes:

[0006] The lower mold base is equipped with a contour block and a floating platform. The contour block is fixed to the lower mold base to form the left assembly plate and the right assembly plate. The floating platform surrounds the contour block and is used to lift the strip and the parts formed on it above the contour block.

[0007] An anti-detachment component is provided on the floating platform and forms a limiting cavity therewith. The anti-detachment component can be adjusted in relative position with the floating platform to guide the material belt to move and engage in the limiting cavity.

[0008] An upper die base is movably disposed above the lower die base. The upper die base includes a contouring area, a stretching area, and a forming area. The contouring area is used to movably press the strip against the contouring block to form the main body plate and the extension connected to its bottom end. The stretching area is used to movably press the extension to form the stretched plate. The forming area includes an extrusion block and a guide block. An auxiliary block is installed in the lower die base. The extrusion block movably abuts against the auxiliary block, and a forming block is connected to the end of the extrusion block. The forming block is used to form an inner groove on the side wall of the main body plate. One end of the guide block is connected to the extrusion block, and the other end is movably engaged with the auxiliary block to limit the relative position between the extrusion block and the auxiliary block.

[0009] When the upper mold base moves closer to the lower mold base, the auxiliary block can convert the vertical movement of the extrusion block into a horizontal movement, so that the forming block abuts against the side wall of the main body plate to form the inner groove, and when the guide block is engaged in the auxiliary block, the depth of the inner groove formed by the forming block is controlled.

[0010] In the aforementioned convenient molding die, the anti-detachment component includes a stop block and an adjusting block. The stop block is fixed on the floating platform, and at least one adjusting block is provided between two adjacent stop blocks. The adjusting block is connected to the floating platform by fasteners, and an elastic element penetrating the floating platform is connected between the adjusting block and the lower die base.

[0011] In the aforementioned convenient molding die, the lower die base is equipped with several nitrogen springs, which are connected to the floating platform.

[0012] In the aforementioned convenient molding die, a first inclined surface is formed on the auxiliary block, and a second inclined surface is formed on the extrusion block, with the second inclined surface movably abutting against the first inclined surface.

[0013] In the aforementioned convenient molding die, the auxiliary block is further provided with an inclined U-shaped locking groove, and the guide block is connected to a locking block, which is movably engaged in the U-shaped locking groove.

[0014] In the aforementioned convenient molding die, an avoidance groove is also formed on the auxiliary block. The avoidance groove is connected to the opening of the U-shaped locking groove, and a guiding arc surface is formed on the bottom wall of the avoidance groove.

[0015] In the aforementioned convenient molding die, the upper die base is equipped with a fixing block that forms a guide groove therewith, and a guide block is formed on the extrusion block, the guide block being movably engaged in the guide groove.

[0016] In the above-mentioned convenient molding die, a molding block is formed in the contouring area, and a stretching block and a positioning block are provided in the stretching area. The stretching block is movably pressed against the extension and the stretching length of the extension is limited by the positioning block.

[0017] In the aforementioned convenient molding die, the contouring area is further provided with a cutting block, which is used to cut and form a connecting strip with a reference hole on the strip. The forming area also includes a reference post and a forming post. The reference post is movably inserted into the reference hole, and forming processing holes are opened on the top wall of the main body plate through the forming post.

[0018] In the aforementioned convenient molding die, the lower die base is also equipped with a buffer seat and a buffer block. A fixed rod is installed on the buffer seat, and the buffer block is movably sleeved on the fixed rod and connected to the buffer seat by a buffer spring.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) This utility model provides a convenient forming mold that achieves vertical to horizontal extrusion forming mechanism through the collaborative structure of floating platform and contour block, combined with auxiliary block, and with adjustable anti-detachment component forming a limiting cavity, realizing integrated, high-precision, and anti-detachment stamping forming of left and right assembly plates on continuous material strip, accurately controlling the forming depth and position of inner groove, significantly improving production efficiency, avoiding positioning errors caused by multi-process transfer, and ensuring product accuracy and quality stability.

[0021] (2) The floating platform is lifted by a nitrogen spring, raising the material strip and the formed parts on it to the top of the contour block. This ensures that the material strip is smoothly transferred to the next station for forming, avoiding positional interference or collision between the formed parts and the contour block during the movement of the parts, and ensuring the reliability and repeatability of the floating platform's operation.

[0022] (3) The design of the clearance groove provides sufficient space for the locking block to enter the U-shaped locking groove, avoiding collision or interference between the locking block and the auxiliary block due to assembly errors or asynchronous movement. Combined with the U-shaped locking groove, it effectively improves the guiding accuracy and the reliability of the action, ensuring the consistency of the molding depth in each mold closing process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the left and right assembly plates being formed on the material strip;

[0024] Figure 2 This is a schematic diagram of the lower mold base;

[0025] Figure 3 This is a schematic diagram of the upper mold base;

[0026] Figure 4 This is a structural diagram of the forming area;

[0027] Figure 5 This is a schematic diagram of the installation structure of the buffer block and buffer seat;

[0028] Figure 6 This is a structural diagram of the anti-detachment component.

[0029] In the diagram, 1 is the material strip; 10 is the left assembly plate; 11 is the right assembly plate; 120 is the main body plate; 120a is the inner groove; 120b is the machining hole; 121 is the stretching plate; 13 is the connecting strip; and 130 is the reference hole.

[0030] 2. Lower mold base; 20. Contouring block; 21. Floating platform; 22. Auxiliary block; 220. First inclined surface; 221. U-shaped locking groove; 222. Clearance groove; 222a. Guide arc surface; 23. Nitrogen spring; 24. Buffer seat; 240. Fixing rod; 25. Buffer block; 26. Buffer spring; 27. Fixing block; 270. Guide groove;

[0031] 3. Anti-detachment component; 30. Limiting cavity; 300. Stop block; 301. Adjusting block;

[0032] 4. Upper mold base; 40. Contouring area; 400. Forming block; 401. Cutting block; 41. Stretching area; 410. Stretching block; 42. Forming area; 420. Extrusion block; 420a. Second inclined surface; 420b. Guide block; 421. Guide block; 421a. Engaging block; 422. Forming block; 423. Reference post; 424. Forming post. Detailed Implementation

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0035] like Figures 1 to 6As shown, this utility model discloses a convenient molding die for molding a pair of left assembly plates 10 and right assembly plates 11. Both the left assembly plate 10 and right assembly plate 11 have interconnected main body plates 120 and stretching plates 121. The main body plates 120 are L-shaped. The molding die includes a lower mold base 2, equipped with a contour block 20 and a floating platform 21. The contour block 20 is fixed to the lower mold base 2 to mold the left assembly plate 10 and right assembly plate 11; the floating platform 21 surrounds the contour block. 20, and is used to lift the strip 1 and the formed parts on it to the top of the contour block 20; anti-detachment component 3, is provided on the floating platform 21 and forms a limiting cavity 30 with it. The anti-detachment component 3 can be adjusted to adjust its relative position with the floating platform 21 to guide the strip 1 to be moved and locked in the limiting cavity 30; upper mold base 4, is movably provided above the lower mold base 2. The upper mold base 4 includes a contouring area 40, a stretching area 41 and a forming area 42. The contouring area 40 is used to move and press the strip 1 into the contour block 20. Block 20 is used to form the main body plate 120 and the extension connected to its bottom end; the stretching area 41 is used to flexibly press the extension to form the stretching plate 121; the forming area 42 includes an extrusion block 420 and a guide block 421, an auxiliary block 22 is installed in the lower mold base 2, the extrusion block 420 flexibly abuts against the auxiliary block 22, and a forming block 422 is connected to the end of the extrusion block 420. The forming block 422 is used to form an inner groove 120a on the side wall of the main body plate 120; one end of the guide block 421 is connected to The other end of the extrusion block 420 is movably engaged with the auxiliary block 22 to limit the relative position between the extrusion block 420 and the auxiliary block 22. When the upper mold base 4 moves closer to the lower mold base 2, the auxiliary block 22 can convert the vertical movement of the extrusion block 420 into a horizontal movement, so that the forming block 422 presses against the side wall of the main body plate 120 to form the inner groove 120a. When the guide block 421 is engaged with the auxiliary block 22, the depth of the forming block 422 forming the inner groove 120a is controlled.

[0036] like Figure 1As shown, this embodiment is mainly to form an inner groove 120a on the side wall of the main body plate 120, while also extending a tension plate 121 horizontally at its bottom end (to enhance structural rigidity or provide an installation interface), and to ensure that the left and right assembly plates 11 meet the required requirements when used in pairs. Specifically, when the upper mold base 4 is in the raised position (i.e., the mold is open), the floating platform 21 on the lower mold base 2 remains in a high position, with its top surface slightly higher than the contour block 20 fixed inside it. At this time, the continuous strip 1 is fed into the mold area by the automatic feeding mechanism (not shown in the figure). The strip 1 passes through the limiting cavity 30 formed between the anti-detachment component 3 and the floating platform 21 and is stably restricted within the cavity (i.e., the strip 1 can only move along the length of the lower mold base 2). Since the floating platform 21 has raised the strip 1 as a whole above the contour block 20, the strip 1 will not scrape or interfere with the contour block 20 or other mold components during its forward movement, effectively avoiding spatial interference between the formed L-shaped structure or stretching plate 121 and other structures of the lower mold, ensuring that the strip 1 enters the next station smoothly and steadily. As the press drives the upper mold base... 4. Moving downwards, during this process, the contouring area 40 of the upper mold base 4 gradually presses the strip 1, and as the floating platform 21 moves downwards synchronously due to the pressure of the upper mold base 4, the strip 1 begins to adhere to the surface of the contouring block 20 on the lower mold base 2. With the continuous application of pressure, the strip 1 undergoes plastic deformation under the guidance of the contouring block 20, forming an L-shaped main body plate 120, with an extension reserved at its bottom end for subsequent stretching. As the upper mold base 4 moves away from the lower mold base 2, the floating platform 21 lifts the strip 1 and the forming structure above the contouring block 20, ensuring that the feeder can push it across the contouring block 20 and move it to the next station. As the upper mold base 4 moves downwards again, the stretching area 41 applies continuous pressure to the bent extension, completing the horizontal stretching under the support of the lower mold, thus enhancing the overall structural rigidity. Similarly, as the above operation continues to move to the next station, the forming area 42 begins to function. The extrusion block 420 in the upper die moves down with the upper die base 4 and comes into contact with the auxiliary block 22. Under the action of vertical pressure, the extrusion block 420, relying on the guiding action of the auxiliary block 22, converts the vertical punching force into a horizontal thrust, pushing the extrusion block 420 and its front end forming block 422 to move laterally and cut into the side wall of the main body plate 120 to complete the stamping forming of the inner groove 120a. During this process, the guide block 421 connected to the extrusion block 420 moves synchronously, and when the extrusion block 420 reaches the predetermined stroke, the end of the guide block 421 is accurately embedded in the auxiliary block 22 to form a rigid stop, preventing the extrusion block 420 from moving further forward, thereby precisely limiting the cutting depth of the forming block 422 and ensuring the accuracy and consistency of the forming quality.Thus, by setting the contour block 20 on the lower mold base 2 to work in coordination with the floating platform 21, stable support and precise positioning of the strip 1 are achieved. At the same time, the contour area 40, stretching area 41 and forming area 42 of the upper mold base 4 are used to complete the integrated continuous forming of the main body plate 120, the extension and the stretching plate 121. The forming depth is controlled by the snap-fit ​​structure of the guide block 421 and the auxiliary block 22, ensuring high dimensional accuracy, good consistency and high overall structural integration of the inner groove 120a. This achieves efficient, stable and one-time stamping forming of complex structures, significantly improving production efficiency and product yield.

[0037] The anti-detachment component 3 includes a stop block 300 and an adjusting block 301. The stop block 300 is fixed on the floating platform 21. At least one adjusting block 301 is provided between two adjacent stop blocks 300. The adjusting block 301 is connected to the floating platform 21 by fasteners, and an elastic element that penetrates the floating platform 21 is connected between the adjusting block 301 and the lower mold base 2.

[0038] like Figure 6 As shown, this embodiment uses an adjustable adjustment block 301 and an elastic element to provide pre-tightening force, enabling the anti-detachment component 3 to adapt to material strips 1 of different thicknesses, thus enhancing the versatility and adaptability of the mold. When the material strip 1 enters the limiting cavity 30, the adjustment block 301 can slightly reposition itself under the action of the elastic element, avoiding rigid interference that could damage or jam the material strip 1. During the molding process, it can reliably limit the material strip 1, preventing it from shifting or jumping. In addition, the position of the adjustment block 301 is locked by fasteners (screws or bolts, etc., not shown in the figure), facilitating quick replacement or adjustment and improving the mold's maintenance convenience and production flexibility.

[0039] like Figure 2 and Figure 6 As shown, the lower mold base 2 is equipped with several nitrogen springs 23, which are connected to the floating platform 21. Using nitrogen springs 23 as the driving element of the floating platform 21 offers advantages such as fast response speed, stable stroke, strong load-bearing capacity, and long service life. When the mold is open, the nitrogen springs 23 push the floating platform 21 upwards, lifting the strip 1 and its formed components above the contour block 20, facilitating the smooth feeding and unloading of the strip 1. When the mold is closed, the upper mold pressure overcomes the elasticity of the nitrogen springs 23, causing the floating platform 21 to press down, achieving precise mold closing to ensure the desired product shape on the strip 1. This structure effectively avoids the problems of fatigue and unstable force values ​​associated with traditional mechanical springs, ensuring the reliability and repeatability of the floating platform 21's operation, and improving the stability and automation level of the mold operation.

[0040] A first inclined surface 220 is formed on the auxiliary block 22, and a second inclined surface 420a is formed on the extrusion block 420. The second inclined surface 420a moves against the first inclined surface 220.

[0041] like Figure 4 As shown, in this embodiment, the downward vertical movement of the upper mold base 4 is converted into the horizontal movement of the extrusion block 420 through the oblique contact and engagement of the first inclined surface 220 and the second inclined surface 420a. This drives the forming block 422 to feed laterally, completing the extrusion forming of the inner groove 120a on the side wall of the main body plate 120. This transmission method has a compact structure, stable force transmission, low frictional resistance, and requires no additional power source. It relies entirely on the opening and closing action of the mold itself to achieve functional conversion, simplifying the mold structure and reducing manufacturing costs. At the same time, the inclined surface engagement has a self-locking tendency, which helps to maintain stability during the forming process and improve the forming quality of the inner groove 120a.

[0042] The auxiliary block 22 also has an inclined U-shaped locking groove 221, and the guide block 421 is connected to a locking block 421a, which is movably locked into the U-shaped locking groove 221.

[0043] Continue to refer to Figure 4 As shown in the structure, the U-shaped locking groove 221 and the engaging block 421a provide guidance and limiting functions during the horizontal movement of the extrusion block 420, ensuring that the extrusion block 420 moves along a predetermined trajectory and preventing it from deflecting or jamming. More importantly, when the engaging block 421a is fully embedded in the end of the U-shaped locking groove 221, it indicates that the extrusion block 420 has reached its maximum horizontal displacement, that is, the forming block 422 has completed the final forming position of the inner groove 120a, thereby precisely controlling the forming depth of the inner groove 120a. This structure realizes an integrated design of mechanical limiting and depth control, avoiding product defects caused by overpressure or underpressure, and improving forming accuracy and consistency.

[0044] An avoidance groove 222 is also formed on the auxiliary block 22. The avoidance groove 222 is connected to the opening of the U-shaped lock groove 221, and a guide arc surface 222a is formed on the bottom wall of the avoidance groove 222.

[0045] like Figure 4 As shown, the design of the clearance groove 222 provides sufficient space for the locking block 421a to enter the U-shaped locking groove 221, and also effectively reduces the stroke required for the locking block 421a to disengage from the U-shaped locking groove 221, avoiding collisions or interference between the locking block 421a and the auxiliary block 22 due to assembly errors or asynchronous movements; while the guide arc surface 222a plays a smooth transition role in the process of the locking block 421a sliding into the U-shaped locking groove 221, reducing impact force, reducing wear, and extending mold life; at the same time, the guide arc surface 222a helps to automatically correct the movement trajectory of the locking block 421a, improve guiding accuracy and action reliability, and ensure the consistency of molding depth in each mold closing process.

[0046] The upper mold base 4 is equipped with a fixing block 27 that forms a guide groove 270 therewith. A guide block 420b is formed on the extrusion block 420, and the guide block 420b is movably engaged in the guide groove 270.

[0047] like Figure 4 As shown, in this embodiment, the cooperation between the guide groove 270 and the guide block 420b provides stable guiding support for the horizontal movement of the extrusion block 420, effectively preventing it from jumping up and down or shifting laterally during the inclined plane transmission process, and ensuring the straightness and stability of the lateral feed of the forming block 422. This structure enhances the controllability of the movement of the extrusion block 420 and improves the positional accuracy and surface quality of the inner groove 120a. At the same time, the guide structure shares some of the lateral force, reduces the local stress concentration at the inclined plane contact point, and helps to extend the service life of key components of the mold.

[0048] A forming pressure block 400 is formed in the contouring area 40, and a stretching block 410 and a positioning block are provided in the stretching area 41. The stretching block 410 is movably pressed against the extension and the stretching length of the extension is limited by the positioning block.

[0049] In this embodiment, the forming block 400 can be pre-formed with an extension at the bottom of the main body to facilitate the subsequent direct extrusion forming operation by the stretching block 410, ensuring accurate product forming. With the cooperation of the stretching block 410 and the contour block 20, the shape of the stretching plate 121 can be precisely pressed out, ensuring its geometric accuracy. That is, under the synergistic action of the stretching block 410 and the positioning block, during the stretching forming of the extension into the stretching plate 121, the maximum stretching stroke is set by the positioning block (located on the fixed mold base and on one side of the extension to be stretched, not shown in the figure), effectively controlling the stretching length and preventing excessive stretching that could lead to material breakage or dimensional deviation. This structure achieves limit protection during the stretching process, improves forming stability and product consistency, and is especially suitable for precision stretching of thin sheet materials, significantly reducing the scrap rate.

[0050] The contouring area 40 is also provided with a cutting block 401, which is used to cut and form a connecting strip 13 with a reference hole 130 on the strip 1. The forming area 42 also includes a reference post 423 and a forming post 424. The reference post 423 is movably inserted into the reference hole 130, and the forming post 424 forms a forming processing hole 120b on the top wall of the main body plate 120.

[0051] like Figure 1 and Figure 3As shown, in this embodiment, the cutting block 401 punches out the connecting strip 13 with the reference hole 130 on the strip 1, providing a precise positioning reference for subsequent processes. As the upper die holder 4 drives the reference column 423 to insert into the reference hole 130, the die and the strip 1 are precisely positioned, eliminating accumulated errors and ensuring the positional accuracy of subsequent forming (such as machining hole 120b). The forming column 424 completes the punching of the top wall machining hole 120b in the same stroke, realizing the integration of multiple processes, reducing the number of processes and equipment investment. This structure realizes the integrated operation of positioning, forming and processing, which greatly improves the processing accuracy and production efficiency, and is suitable for the automated production of high-precision, high-volume parts.

[0052] The lower mold base 2 is also equipped with a buffer seat 24 and a buffer block 25. A fixed rod 240 is installed on the buffer seat 24, and the buffer block 25 is movably sleeved on the fixed rod 240 and connected to the buffer seat 24 by a buffer spring 26.

[0053] like Figure 2 and Figure 5 As shown, the buffer mechanism composed of buffer seat 24 and buffer block 25 can absorb impact energy when the floating platform 21 is in a raised state and the feeder pushes the material belt 1 to move, ensuring that the formed structure on the material belt 1 is accurately moved to the next station. At the same time, it can rely on the flexible positioning provided by the buffer spring 26 to avoid deformation of the material belt 1 or damage to the formed parts caused by instantaneous impact. This structure significantly improves the stability and safety of the material belt 1 during movement.

[0054] It should be noted that in this embodiment, the forming of the main body plate 120 on the left and right assembly plates 11 mainly relies on the contour block 20 and the contour area 40. Their structure and forming principle are the same as the forming method in the existing continuous mold, and will not be described in detail here.

[0055] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A convenient molding die for molding a pair of left and right assembly plates, each of which has a main body plate and a stretching plate connected to each other, the main body plate being L-shaped, characterized in that, The molding die includes: The lower mold base is equipped with a contour block and a floating platform. The contour block is fixed to the lower mold base to form the left assembly plate and the right assembly plate. The floating platform surrounds the contour block and is used to lift the strip and the parts formed on it above the contour block. An anti-detachment component is provided on the floating platform and forms a limiting cavity therewith. The anti-detachment component can be adjusted in relative position with the floating platform to guide the material belt to move and engage in the limiting cavity. An upper die base is movably disposed above the lower die base. The upper die base includes a contouring area, a stretching area, and a forming area. The contouring area is used to movably press the strip against the contouring block to form the main body plate and the extension connected to its bottom end. The stretching area is used to movably press the extension to form the stretched plate. The forming area includes an extrusion block and a guide block. An auxiliary block is installed in the lower die base. The extrusion block movably abuts against the auxiliary block, and a forming block is connected to the end of the extrusion block. The forming block is used to form an inner groove on the side wall of the main body plate. One end of the guide block is connected to the extrusion block, and the other end is movably engaged with the auxiliary block to limit the relative position between the extrusion block and the auxiliary block. When the upper mold base moves closer to the lower mold base, the auxiliary block can convert the vertical movement of the extrusion block into a horizontal movement, so that the forming block abuts against the side wall of the main body plate to form the inner groove, and when the guide block is engaged in the auxiliary block, the depth of the inner groove formed by the forming block is controlled.

2. The convenient molding die according to claim 1, characterized in that, The anti-detachment component includes a stop block and an adjusting block. The stop block is fixed on the floating platform, and at least one adjusting block is provided between two adjacent stop blocks. The adjusting block is connected to the floating platform by fasteners, and an elastic element penetrating the floating platform is connected between the adjusting block and the lower mold base.

3. The convenient molding die according to claim 1, characterized in that, The lower mold base is equipped with several nitrogen springs, which are connected to the floating platform.

4. The convenient molding die according to claim 1, characterized in that, The auxiliary block has a first inclined surface, and the extrusion block has a second inclined surface, which movably abuts against the first inclined surface.

5. A convenient molding die according to claim 4, characterized in that, The auxiliary block also has an inclined U-shaped locking groove, and the guide block is connected to a locking block, which is movably locked into the U-shaped locking groove.

6. A convenient molding die according to claim 5, characterized in that, The auxiliary block also has a clearance groove, which is connected to the opening of the U-shaped locking groove, and a guide arc surface is formed on the bottom wall of the clearance groove.

7. A convenient molding die according to claim 1 or 4, characterized in that, The upper die base is equipped with a fixing block that forms a guide groove therewith, and a guide block is formed on the extrusion block, the guide block being movably engaged in the guide groove.

8. A convenient molding die according to claim 1, characterized in that, A forming pressure block is formed in the contouring area, and a stretching block and a positioning block are provided in the stretching area. The stretching block is movably pressed against the extension and the stretching length of the extension is limited by the positioning block.

9. A convenient molding die according to claim 1, characterized in that, The contouring area is also provided with a cutting block, which is used to cut and form a connecting strip with a reference hole on the strip. The forming area also includes a reference post and a forming post. The reference post is movably inserted into the reference hole and a forming processing hole is opened on the top wall of the main body plate through the forming post.

10. A convenient molding die according to claim 1, characterized in that, The lower mold base is also equipped with a buffer seat and a buffer block. A fixed rod is installed on the buffer seat, and the buffer block is movably sleeved on the fixed rod and connected to the buffer seat by a buffer spring.

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