Stamping dies for tower valve parts

Abstract

The present application relates to the field of tower valve parts processing, and in particular to a stamping die for tower valve parts, including an upper die and a lower die for forming tower valve parts, the lower die is also provided with an auxiliary limiting structure, the auxiliary limiting structure includes a guide block, a guide groove is provided on the guide block along the moving direction of the material strip, the material strip is arranged through the guide groove, the guide block is vertically slidably connected to the lower die, a second reset member is arranged below the guide block, a receiving groove is provided on the side of the guide block close to the limiting structure, an auxiliary support plate is provided in the receiving groove, the end of the auxiliary support plate away from the lower die is rotatably connected to the receiving groove, when the auxiliary support plate is horizontal, the upper surface of the auxiliary support plate is flush with the bottom surface of the guide groove, the receiving groove is provided with an installation groove, and the installation groove is provided with a driving component for driving the auxiliary support plate to rotate. The present application has the effect of reducing the occurrence of waste products in the front section of the material strip.

Description

Technical Field

[0001] The present application relates to the field of tower valve component processing, and in particular to a stamping die for tower valve components. Background Art

[0002] When manufacturing some parts in batches, for some stamping parts, continuous dies are usually used. Continuous dies refer to cold stamping dies that use strip-shaped stamping raw materials in one stamping stroke of the press machine, and use several different stations on a pair of dies to complete multiple stamping processes at the same time. Each time the die is stamped, the material strip moves once at a fixed distance until the product is completed. When stamping the strip raw material, a guide limit structure will be set at the entrance of the die. The guide limit structure includes guide blocks arranged on both sides of the moving direction of the strip raw material. Guide grooves are opened on the opposite side walls of the guide blocks, and both sides of the moving direction of the strip raw material are located in the guide grooves. When the upper die is pressed down, it can drive the guide block to press down, so that the strip raw material fits on the lower die to complete the corresponding trimming, incision, grooving, punching and other processes.

[0003] With regard to the above-mentioned related technologies, the inventor believes that when performing processes such as trimming, cutting, grooving, punching, etc. on both sides of the moving direction of the material strip, the material strip is in a suspended state, and the ends of the material strip will fall downward under the action of gravity. In the subsequent process, a guide limit structure will still be set to limit the material strip. Currently, the ends of the material strip are forcibly pulled into the guide grooves of the subsequent guide blocks manually, so that the subsequent guide grooves can continue to limit the material strip. However, when pulling the ends of the material strip, the pulling distance cannot be accurately controlled, resulting in waste in the front section of the material strip when continuing to perform processes such as trimming, cutting, grooving, punching, etc., resulting in waste of the material strip. Summary of the invention

[0004] In order to reduce the possibility of waste products in the front section of the material strip, the present application provides a stamping die for tower valve components.

[0005] The present application provides a stamping die for tower valve parts using the following technical solution:

[0006] A stamping die for tower valve parts, comprising an upper die and a lower die for forming tower valve parts, a primary limiting structure is arranged at the entrance of the lower die, the primary limiting structure comprises limiting blocks arranged on both sides of the moving direction of the material strip, limiting grooves are arranged on the opposite side walls of the two limiting blocks, the two sides of the material strip are slidably connected in the corresponding limiting grooves, the limiting blocks are vertically slidably connected to the lower die, a first reset piece is arranged below the limiting blocks, an auxiliary limiting structure is also arranged on the lower die, the auxiliary limiting structure comprises a guide block, the guide A guide groove is opened on the block along the moving direction of the material strip, the material strip is arranged through the guide groove, the guide block is vertically slidably connected to the lower mold, a second reset member is arranged below the guide block, a receiving groove is arranged on the side of the guide block close to the limiting structure, an auxiliary support plate is arranged in the receiving groove, the end of the auxiliary support plate away from the lower mold is rotatably connected to the receiving groove, when the auxiliary support plate is horizontal, the upper surface of the auxiliary support plate is flush with the bottom surface of the guide groove, an installation groove is arranged in the receiving groove, and a driving component for driving the auxiliary support plate to rotate is arranged in the installation groove.

[0007] By adopting the above technical solution, the material belt can be limited and guided by the primary limiting structure, and the driving structure can drive the auxiliary support plate to flip to a horizontal state, thereby lifting the end of the falling material belt and allowing the material belt to be smoothly passed into the guide groove. There is no need to manually force the end of the material belt into the guide groove, thereby reducing the possibility of waste in the front section of the material belt and ensuring the safety of workers.

[0008] Optionally, the driving assembly includes a driving cylinder, a driving slider and a supporting connecting rod, the driving cylinder is arranged in a mounting groove, the piston rod end of the driving cylinder is connected to the driving slider, one end of the supporting connecting rod is hinged to the driving slider, and the other end is hinged to the auxiliary support plate.

[0009] By adopting the above technical solution, the driving cylinder can drive the driving slider to move, and the driving slider can drive the auxiliary support plate to rotate through the supporting connecting rod, thereby realizing the flipping of the auxiliary support plate.

[0010] Optionally, an avoidance groove is provided on the lower die, and the avoidance groove is located on a side of the guide block close to the limit block.

[0011] By adopting the above technical solution, when the auxiliary support plate is horizontal, as the guide block descends, the avoidance groove can provide avoidance space for the rotation of the auxiliary support plate.

[0012] Optionally, an auxiliary support assembly is provided on the lower mold, and the auxiliary support assembly is located on the side of the avoidance groove away from the guide block. The auxiliary support assembly includes a support column and a top support spring. The top surface of the support column is inclined, and the side of the top surface of the support column close to the guide block is higher than the side of the top surface of the support column close to the limit block. The highest point of the support column is higher than the bottom surface of the guide groove. A sliding groove is opened on the lower mold, and the support column is slidably connected in the sliding groove, and the top support spring is located between the support column and the bottom of the sliding groove.

[0013] By adopting the above technical solution, the auxiliary support assembly can reduce the falling of the end of the material strip. By tilting the top surface of the support column, the end of the material strip tends to move upward, thereby overcoming the falling of the end of the material strip and making it easier for the material strip to pass into the guide groove through the auxiliary support plate.

[0014] Optionally, a guide structure is provided between the upper mold and the lower mold, and the guide structure includes a guide column, a steel ball sleeve and a protective sleeve, the guide column is vertically arranged on the lower mold, the steel ball sleeve is arranged on the top of the guide column, the protective sleeve is arranged on the side wall of the upper mold facing the lower mold, the protective sleeve and the steel ball sleeve are coaxially arranged, and the steel ball sleeve is slidably matched with the sleeve.

[0015] By adopting the above technical solution, the setting of the guide structure can improve the stability of the upper mold and the lower mold when the mold is closed, thereby improving the stamping accuracy of the material strip and reducing the possibility of waste.

[0016] Optionally, the steel ball sleeve sliding sleeve is arranged on the guide column, and a buffer spring is sleeved on the guide column, one end of the buffer spring is in contact with the lower mold, and the other end is in contact with the steel ball sleeve.

[0017] By adopting the above technical solution, the provision of the buffer spring can reduce the possibility of the sheath directly hitting the steel ball sheath, thereby protecting the steel ball sheath and the sheath.

[0018] Optionally, the upper mold and the lower mold are both rectangular, and four guide structures are provided and are respectively located at four corners of the lower mold.

[0019] By adopting the above technical solution, providing guide structures at the four corners of the lower mold can further improve the stability of the upper mold and the lower mold when the mold is closed.

[0020] Optionally, a clamping assembly is provided at the four corners of the lower mold, and the clamping assembly includes a fixing rod, a locking nut, and a clamping block. The lower mold is set on a workbench, the fixing rod is vertically fixedly connected to the workbench, the clamping block is slidably sleeved on the fixing rod, the fixing rod is provided with a thread, the locking nut is threadedly connected to the fixing rod, the lower surface of the clamping block is set against the lower mold, and the locking nut is set against the upper surface of the clamping block.

[0021] By adopting the above technical solution, the clamping block can be pressed onto the lower die through the locking nut, so that the lower die is not easy to move, thereby improving the stamping accuracy of the material strip and further reducing the possibility of waste.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The material belt can be limited and guided by the primary limiting structure, and the driving structure can drive the auxiliary support plate to flip to a horizontal state, thereby lifting the end of the falling material belt, so that the material belt can be smoothly inserted into the guide groove, without the need to manually forcibly pull the end of the material belt into the guide groove, thereby reducing the possibility of waste in the front section of the material belt and ensuring the safety of workers;

[0024] 2. The auxiliary support assembly can reduce the situation where the end of the material belt falls. By tilting the top surface of the support column, the end of the material belt tends to move upward, thereby overcoming the falling of the end of the material belt and making it easier for the material belt to pass through the auxiliary support plate into the guide groove;

[0025] 3. The clamping block can be pressed against the lower die through the locking nut, making it difficult for the lower die to move, thereby improving the stamping accuracy of the material strip and further reducing the possibility of scrap. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a stamping die for tower valve components according to an embodiment of the present application.

[0027] Figure 2 It is a cross-sectional view used to reflect the positional relationship between the limit block and the first reset member in the embodiment of the present application.

[0028] Figure 3 It is a cross-sectional view used to reflect the positional relationship between the guide block and the auxiliary support assembly in the embodiment of the present application.

[0029] Figure 4 It is a structural schematic diagram used to reflect the drive component in the embodiment of the present application.

[0030] Description of reference numerals: 1, upper die; 2, lower die; 21, forming part; 22, die frame; 221, support beam; 3, workbench; 4, clamping assembly; 41, fixing rod; 42, locking nut; 43, clamping block; 5, auxiliary block; 51, sliding groove; 61, limiting block; 62, limiting groove; 63, first reset member; 631, connecting plate; 632, first reset spring; 71, guide block; 72, guide groove; 7 3. Second return spring; 81. Accommodating groove; 82. Auxiliary support plate; 821. Avoiding groove; 83. Mounting groove; 84. Driving assembly; 841. Driving cylinder; 842. Driving slider; 843. Support connecting rod; 9. Auxiliary support assembly; 91. Support column; 92. Support spring; 93. Sliding groove; 10. Guide structure; 101. Guide column; 102. Steel ball sleeve; 103. Sheath; 104. Buffer spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The present application embodiment discloses a stamping die for tower valve parts. Figure 1 The stamping die for tower valve parts includes an upper die 1 and a lower die 2 for forming tower valve parts. The lower die 2 includes a forming part 21 and a die frame 22. The forming part 21 is fixedly connected to the die frame 22. A workbench 3 is arranged below the die frame 22. A gap is left between the die frame 22 and the workbench 3. The die frame 22 is placed on the workbench 3 through a support beam 221. The support beam 221 is horizontally arranged and four are evenly arranged along the conveying direction of the material belt. The die frame 22 is fixedly connected to the workbench 3 through a clamping component 4.

[0033] Reference Figure 1 Two auxiliary blocks 5 are fixedly connected to the workbench 3. The two auxiliary blocks 5 are symmetrically arranged on both sides of the moving direction of the material strip. The two auxiliary blocks 5 are both located at one end of the mold frame 22 close to the material strip entrance. Sliding grooves 51 are opened on the opposite side walls of the two auxiliary blocks 5. The two sides of the moving direction of the material strip are located in the sliding grooves 51 and slide in cooperation with the sliding grooves 51.

[0034] Reference Figure 1 and Figure 2A primary limiting structure is provided at the entrance of the lower mold 2, and the primary limiting structure includes limiting blocks 61 arranged on both sides of the moving direction of the material strip, the limiting blocks 61 are vertically slidably connected to the forming part 21 and are arranged through the mold frame 22, and limiting grooves 62 are provided on the opposite side walls of the two limiting blocks 61, and the two sides of the material strip are slidably connected in the corresponding limiting grooves 62, and a first return member 63 is provided below the two limiting blocks 61, and the first return member 63 includes a connecting plate 631 and a first return spring 632, and the bottom ends of the two limiting blocks 61 are respectively fixedly connected to the two ends of the connecting plate 631, and the first return spring 632 is located between the connecting plate 631 and the workbench 3, one end of the first return spring 632 is fixedly connected to the workbench 3, and the other end of the first return spring 632 is fixedly connected to the connecting plate 631.

[0035] Reference Figure 1 and Figure 2 The top surface of the sliding groove 51 is flush with the top surface of the limiting groove 62, and the bottom surface of the sliding groove 51 is in the same plane as the top surface of the forming portion 21. The material strip passes through the sliding groove 51 and the limiting groove 62, and the sliding groove 51 can limit the two sides of the material strip without affecting the material strip moving up and down following the limiting groove 62.

[0036] Reference Figure 2 and Figure 3 An auxiliary limiting structure is also provided on the lower mold 2, and the auxiliary limiting structure includes a guide block 71. A guide groove 72 is opened on the guide block 71 along the moving direction of the material strip. The material strip passes through the guide groove 72, and the guide groove 72 guides and supports the middle part of the material strip.

[0037] Reference Figure 2 and Figure 3 The guide block 71 is vertically slidably connected to the forming portion 21, and a second return member is arranged below the guide block 71. The second return member is a second return spring 73. The second return spring 73 is located between the guide block 71 and the workbench 3. One end of the second return spring 73 is fixedly connected to the bottom end of the guide block 71, and the other end is fixedly connected to the workbench 3.

[0038] Reference Figure 3 and Figure 4 A receiving groove 81 is provided on one side of the guide block 71 close to the primary limiting structure, and an auxiliary support plate 82 is provided in the receiving groove 81. The top of the auxiliary support plate 82 is rotatably connected to the receiving groove 81. When the auxiliary support plate 82 is horizontal, the upper surface of the auxiliary support plate 82 is flush with the bottom surface of the guide groove 72. A mounting groove 83 is provided in the receiving groove 81, and a driving component 84 for driving the auxiliary support plate 82 to rotate is provided in the mounting groove 83. The driving component 84 can drive the auxiliary support plate 82 to rotate out of the receiving groove 81, thereby guiding the end of the material strip, so that the end of the material strip can be smoothly moved into the guide groove 72.

[0039] Reference Figure 3 and Figure 4 The driving assembly 84 includes a driving cylinder 841, a driving slider 842 and a supporting connecting rod 843. The driving cylinder 841 is vertically arranged in the mounting groove 83. The piston rod end of the driving cylinder 841 is fixedly connected to the driving slider 842. One end of the supporting connecting rod 843 is hinged to the driving slider 842, and the other end is hinged to the auxiliary supporting plate 82, thereby realizing the flipping of the auxiliary supporting plate 82.

[0040] Reference Figure 2 and Figure 3 An avoidance groove 821 is provided on the forming portion 21 and is located on a side of the guide block 71 close to the limit block 61. When the auxiliary support plate 82 is horizontal, as the guide block 71 descends, the avoidance groove 821 can provide a space for the auxiliary support plate 82 to avoid.

[0041] Reference Figure 2 and Figure 3 In order to better pass the material strip into the guide groove 72, an auxiliary support assembly 9 is provided on the lower mold 2, and the auxiliary support assembly 9 is located on the side of the avoidance groove 821 away from the guide block 71. The auxiliary support assembly 9 includes a support column 91 and a top support spring 92. The top surface of the support column 91 is inclined, and the top surface of the support column 91 is closer to the guide block 71 than the top surface of the support column 91 is closer to the limit block 61. The highest point of the support column 91 is higher than the bottom surface of the guide groove 72. A sliding groove 93 is provided on the molding part 21, and the support column 91 is vertically slidably connected in the sliding groove 93. The top support spring 92 is located between the support column 91 and the bottom of the sliding groove 93. One end of the top support spring 92 is against the top of the support column 91, and the other end is against the bottom of the sliding groove 93. In order to reduce the possibility of the support column 91 causing scratches on the material strip, the top of the support column 91 is provided with an arc chamfer. The support column 91 can guide the material strip, and the material strip can smoothly move along the top surface of the support column 91 through the auxiliary support plate 82 to the guide groove 72 .

[0042] Reference Figure 2 and Figure 3 In order to improve the stability of the upper mold 1 and the lower mold 2 when they are closed, a guide structure 10 is provided between the upper mold 1 and the lower mold 2. The guide structure 10 includes a guide column 101, a steel ball sleeve 102 and a sleeve 103. The guide column 101 is vertically fixedly connected to the mold frame 22, the steel ball sleeve 102 is arranged at the top of the guide column 101, and the sleeve 103 is fixedly connected to the side wall of the upper mold 1 facing the lower mold 2. The sleeve 103 and the steel ball sleeve 102 are coaxially arranged, and the steel ball sleeve 102 and the sleeve 103 are slidably matched.

[0043] Reference Figure 2 and Figure 3In order to reduce the possibility of the sleeve 103 directly hitting the steel ball sleeve 102, the steel ball sleeve 102 is slidably sleeved on the guide column 101, and a buffer spring 104 is sleeved on the guide column 101. One end of the buffer spring 104 conflicts with the mold frame 22, and the other end conflicts with the steel ball sleeve 102.

[0044] Reference Figure 1 and Figure 2 The upper mold 1 and the lower mold 2 are both rectangular in shape, and four guide structures 10 are provided and respectively located at the four corners of the lower mold 2, so as to further improve the stability of the upper mold 1 and the lower mold 2 when the mold is closed.

[0045] Reference Figure 1 and Figure 2 There are four clamping assemblies 4 respectively located at the four corners of the lower die 2. The clamping assemblies 4 include a fixing rod 41, a locking nut 42, and a clamping block 43. The fixing rod 41 is vertically fixedly connected to the workbench 3, and the clamping block 43 is slidably sleeved on the fixing rod 41. The fixing rod 41 is provided with threads, and the locking nut 42 is threadedly connected to the fixing rod 41. The lower surface of the clamping block 43 is set against the die frame 22, and the locking nut 42 is set against the upper surface of the clamping block 43. By setting the clamping assembly 4, the lower die 2 is not easy to move, thereby improving the stamping accuracy of the material strip.

[0046] The implementation principle of a stamping die for tower valve parts in the embodiment of the present application is as follows: the material strip passes through the sliding groove 51 of the auxiliary block 5 and continues to be transported forward. After being transported to the specified position, the transport is stopped, the upper mold 1 and the lower mold 2 are molded together to complete the stamping work. After the stamping is completed, the upper mold 1 and the lower mold 2 are separated, the material strip continues to be transported forward for one station and then stops, the upper mold 1 and the lower mold 2 are molded together again to complete the stamping work. After the stamping is completed, the upper mold 1 and the lower mold 2 are separated again, the material strip continues to be transported forward for another station and then stops. When it is sent to the top of the auxiliary support assembly 9, the support column 91 supports the end of the material strip, and the driving cylinder 841 is started. The piston rod of the driving cylinder 841 drives the driving slider 842 to move upward, and the driving slider 842 drives the auxiliary support plate 82 to flip to a horizontal state through the top support connecting rod 843, so that the end of the material strip can smoothly pass through the auxiliary support plate 82 and pass into the guide groove 72, thereby eliminating the need to manually force the end of the material strip into the guide groove 72 of the guide block 71, thereby reducing the possibility of waste in the front section of the material strip.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stamping die for tower valve parts, characterized in that: The invention comprises an upper die (1) and a lower die (2) for forming tower valve parts. A primary limiting structure is provided at the entrance of the lower die (2). The primary limiting structure comprises limiting blocks (61) arranged on both sides of the moving direction of the material strip. The two limiting blocks (61) are provided with limiting grooves (62) on opposite side walls. The two sides of the material strip are slidably connected in the corresponding limiting grooves (62). The limiting blocks (61) are vertically slidably connected to the lower die (2). A first reset member (63) is provided below the limiting blocks (61). The lower die (2) is also provided with an auxiliary limiting structure. The auxiliary limiting structure comprises a guide block (71). A guide groove (72) is provided on the guide block (71) along the moving direction of the material strip. The material strip passes through the guide groove (72). The guide block (71) is vertically slidably connected to the lower mold (2), a second reset member is arranged below the guide block (71), a receiving groove (81) is arranged on a side of the guide block (71) close to the limiting structure, an auxiliary support plate (82) is arranged in the receiving groove (81), an end of the auxiliary support plate (82) away from the lower mold (2) is rotatably connected to the receiving groove (81), when the auxiliary support plate (82) is horizontal, the upper surface of the auxiliary support plate (82) is flush with the bottom surface of the guide groove (72), a mounting groove (83) is arranged in the receiving groove (81), a driving component (84) for driving the auxiliary support plate (82) to rotate is arranged in the mounting groove (83), and the driving component (84) comprises a driving cylinder (841), a driving cylinder (842), a driving cylinder (843), a driving cylinder (844), a driving cylinder (845), a driving cylinder (846), a driving cylinder (847), a driving cylinder (848), a driving cylinder (849), a driving cylinder (841 ...9), a driving cylinder (841), a driving cylinder (849), a driving cylinder (841), a driving cylinder (842), a driving cylinder (843), a driving cylinder (844), a driving cylinder (845), a driving cylinder (846), The driving cylinder (841) is arranged in the installation groove (83), the piston rod end of the driving cylinder (841) is connected to the driving slider (842), one end of the supporting connecting rod (843) is hinged to the driving slider (842), and the other end is hinged to the auxiliary supporting plate (82), the lower mold (2) is provided with an avoidance groove (821), the avoidance groove (821) is located on the side of the guide block (71) close to the limit block (61), the lower mold (2) is provided with an auxiliary supporting component (9), the auxiliary supporting component (9) is located on the side of the avoidance groove (821) away from the guide block (71), and the auxiliary supporting component (9) includes a support column (91) and a supporting spring (92), The top surface of the support column (91) is inclined, and the side of the top surface of the support column (91) close to the guide block (71) is higher than the side of the top surface of the support column (91) close to the limit block (61). The highest point of the support column (91) is higher than the bottom surface of the guide groove (72). A sliding groove (93) is provided on the lower mold (2). The support column (91) is slidably connected in the sliding groove (93). The support spring (92) is located between the support column (91) and the bottom of the sliding groove (93). A guide structure (10) is provided between the upper mold (1) and the lower mold (2). The guide structure (10) includes a guide column (101), a steel ball sleeve (102) and a sleeve (103). The guide column (101) is vertically arranged on the lower mold (2).The steel ball sleeve (102) is arranged at the top of the guide column (101), the protective sleeve (103) is arranged on the side wall of the upper mold (1) facing the lower mold (2), the protective sleeve (103) and the steel ball sleeve (102) are coaxially arranged, and the steel ball sleeve (102) and the protective sleeve (103) are slidably matched.

2. The stamping die for tower valve parts according to claim 1, characterized in that: The steel ball sleeve (102) is slidably sleeved on the guide column (101), and a buffer spring (104) is sleeved on the guide column (101). One end of the buffer spring (104) contacts the lower mold (2), and the other end contacts the steel ball sleeve (102).

3. The stamping die for tower valve parts according to claim 2, characterized in that: The upper die (1) and the lower die (2) are both arranged in a rectangular shape, and four guide structures (10) are provided and are respectively located at the four corners of the lower die (2).

4. The stamping die for tower valve parts according to claim 3, characterized in that: A clamping assembly (4) is provided at each of the four corners of the lower die (2), and the clamping assembly (4) comprises a fixing rod (41), a locking nut (42), and a clamping block (43). The lower die (2) is arranged on a workbench (3), and the fixing rod (41) is vertically fixedly connected to the workbench (3). The clamping block (43) is slidably sleeved on the fixing rod (41), and a thread is provided on the fixing rod (41). The locking nut (42) is threadedly connected to the fixing rod (41), and the lower surface of the clamping block (43) is arranged to abut against the lower die (2), and the locking nut (42) is arranged to abut against the upper surface of the clamping block (43).

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