A processing technology and processing equipment for large and small heads

Abstract

The present invention belongs to the field of size head processing technology, and in particular, relates to a size head processing technology, including loading, molding, unloading and cutting processes. The molding process is to start the hydraulic system to move the push head toward the size head blank, start the water pressure system to inject liquid into the injection hole so that the liquid pressure in the middle hole reaches a preset value, and the control system controls the drive motor to rotate so that the size head blank is gradually expanded and molded, and the push head gradually approaches the middle of the cavity to compensate for the deformation and thinning of the large head position. At the same time, the circumferential material leveling structure rotates the size head blank circumferentially to uniformly mold. When the molding is almost in place, the circumferential material leveling structure stops rotating the size head blank circumferentially, and the push head gradually moves, and the liquid pressure is continuously maintained until the size head is molded in place. The present invention molds the size head through liquid pressure, and at the same time, the push head gradually approaches the middle of the cavity to compensate for the deformation and thinning of the large head position, ensuring the uniformity, consistency and quality of the wall thickness of the size head after molding.

Description

Technical Field

[0001] The invention belongs to the technical field of size head processing, and in particular relates to a size head processing technology and processing equipment. Background Art

[0002] Reducer, also known as reducer, is one of the chemical pipe fittings used to connect two pipes of different diameters.

[0003] Existing reducers are generally formed by compression molding. Through a reducer molding die, the blank is pushed and extruded in the mold. This molding method is relatively simple, but the controllability of the finished product is low, but it has a great impact on the quality of the product after molding. The process of reducing and enlarging the head is prone to cause appearance defects such as the straight edge collapse and deformation of the large head and the concave of the small head. At the same time, due to the large deformation of the small head, the parent material is prone to defects such as cracks. Summary of the invention

[0004] The purpose of the present invention is to provide a processing technology and processing equipment for large and small heads in order to improve product consistency and product quality.

[0005] In view of this, the present invention provides a processing technology for reducing and reducing heads, comprising the following steps:

[0006] Process S1: loading, starting the hydraulic system to lift the upper die, placing the size head blank into the cavity of the forming die, and resetting the upper die to close the die;

[0007] Step S2: Forming, start the hydraulic system to move the pusher head toward the large and small head blanks, start the water pressure system to inject liquid into the injection hole so that the liquid pressure in the middle hole reaches the preset value, the control system controls the drive motor to rotate, so that the large and small head blanks are gradually expanded and formed, and the pusher head gradually moves toward the middle of the cavity to compensate for the deformation and thinning of the large head position, and at the same time, the circumferential material leveling structure rotates the large and small head blanks circumferentially to form evenly. When the forming is almost in place, the circumferential material leveling structure stops rotating the large and small head blanks circumferentially, and the pusher head gradually moves, and the liquid pressure is continuously maintained until the large and small heads are formed in place;

[0008] Step S3: unloading, stopping the water pressure system to drain the liquid, the hydraulic system makes the push head move in the opposite direction to reset, and lifts the upper mold to take the reducer and reducer completed in step S2 out of the mold cavity of the forming mold;

[0009] Step S4: Cutting, cutting off the excess parts at both ends of the reducer taken out in step S3.

[0010] In this technical solution, this processing technology can improve product consistency and improve product quality.

[0011] Furthermore, the size head blank includes the lengths of two size head blanks.

[0012] Furthermore, the cutting is performed by first cutting it in half along the direction perpendicular to the center line to obtain two reducers, and then cutting off the excess length of the other ends of the two reducers for use with the circumferential material leveling structure.

[0013] Furthermore, the molding equipment includes a water pressure system, a control system and a hydraulic system, and also includes:

[0014] The molding die comprises an upper die and a lower die. The hydraulic system can control the upper die to move up and down. After the upper die and the lower die are closed, a cavity for accommodating the sizer blank is formed in the middle. The shape of the middle of the cavity is the same as the contour shape of the two axially symmetrically connected sizer finished products.

[0015] The pusher head is arranged at both ends of the molding mold. Under the control of the control system, the pusher head can be inserted into the two ends of the molding mold and move toward the middle of the cavity. The pusher head is sealed and connected to the molding mold cavity. Each pusher head is provided with an injection hole, and the injection hole is connected with the middle hole of the large and small heads.

[0016] In the present technical solution, by injecting liquid into the injection hole, the liquid flows into the middle hole of the reducer and reducer, increasing the liquid pressure, and making the reducer and reducer be expanded from the middle hole along the diameter direction to be consistent with the shape of the middle part of the mold cavity, the molding of the reducer and reducer can be achieved. At the same time, the push head gradually moves toward the middle part of the cavity to compensate for the deformation and thinning of the large head position, thereby ensuring the uniformity of the wall thickness of the reducer and reducer after molding, and ensuring the quality of the reducer and reducer.

[0017] Furthermore, it also includes a circumferential material leveling structure, and the circumferential material leveling structure includes:

[0018] A rotating top shaft is sleeved in each push head, the rotating top shaft is fixedly connected to the push head axially, and the two ends of the rotating top shaft extend out of the push head respectively. The two ends of the middle hole of the large and small head blank are provided with positioning inner conical surfaces. The part extending from one end of the rotating top shaft points to the middle of the forming mold cavity and is provided with a positioning outer conical surface that can match the positioning inner conical surface of the large and small head blank. When the end face of the push head contacts the end face of the large and small head blank, the positioning outer conical surface contacts the positioning inner conical surface, and the part extending from the other end of the rotating top shaft extends outwardly along the diameter direction to form a driven rod;

[0019] A driving structure, wherein the driving structure comprises a driving motor, a rotating disk and a driving rod. The driving motor is fixedly arranged on the molding device, and a rotating disk capable of circumferential rotation is arranged at the output end of the driving motor, and a driving rod is vertically arranged on the rotating disk;

[0020] Among them, the above-mentioned driving structure is provided at one end of each rotating top shaft close to the driven rod, the rotating top shaft is coaxial with the rotating disk, the driven rod and the driving rod are perpendicular to each other, the radial distance from the outer end of the driven rod to the axis center of the rotating top shaft is greater than the radial distance from the axis center of the rotating disk to the driving rod, and when the push head moves toward the large and small head blanks and the head just contacts the end faces of the large and small head blanks, the driven rod is located between the two ends of the driving rod and the distance from the rotating disk is the initial pressing distance, and the axial length of the driving rod is less than the shortened distance of the large and small heads from the blank forming to the finished product.

[0021] In the present technical scheme, the driving motor is driven to make the rotating disk drive the driving rod to rotate circumferentially. When the pushing head moves the rotating top shaft toward the size head blank, the driving rod can rotate within the length range of the driving rod to drive the driven rod to rotate so that the rotating top shaft produces circumferential rotation, and the positioning outer cone surface of the rotating top shaft abuts against the positioning inner cone surface of the size head blank. Both ends of the size head blank are supported by axially rotating rotating top shafts. Therefore, the size head blank can also rotate circumferentially, that is, it can also rotate circumferentially during the process of gradual molding of the size head blank under the action of liquid pressure in the middle hole. The wall thickness of the size heads is more uniform and the roundness is better. In addition, the push head gradually moves toward the middle of the cavity to gradually shorten the size head blank. The rotating top shaft moves accordingly to move the driven rod out of the length range of the driving rod. Therefore, the driven rod loses the drive of the driving rod and the rotating top shaft stops rotating with the size head blank in a circumferential direction. Such a structure can make the size head blank rotate and stop rotating when it reaches a certain degree and most of the outer wall has not yet contacted the inner wall of the molding mold cavity. It can prevent excessive friction between the outer wall of the size head and the inner wall of the cavity, thereby ensuring the appearance quality and roughness of the outer wall of the size head.

[0022] Furthermore, the initial pressure distance is equal to half the length of the driving rod.

[0023] Furthermore, a pressure sensor is provided on the driven rod at a position where the driving rod can contact the driving rod, and the pressure sensor is connected to the control system. When the pressure sensor senses that the pressure signal disappears, the information is transmitted to the control system. The control system controls the driving and can adjust the overall length of the driving rod driving member by threading the fixed section and the adjusting section, so that it can be suitable for different sizes of reducers. The motor stops rotating.

[0024] In this technical solution, after the rotating top shaft moves to make the driven rod move out of the length range of the driving rod, the driving motor does not need to continue working. At this time, the pressure sensor can automatically control the driving motor to stop working, which is energy-saving and intelligent.

[0025] Furthermore, the driving rod includes a fixed section and an adjusting section, one end of the fixed section is fixedly arranged on the rotating disk, and the other end is connected to the adjusting section through a threaded connection.

[0026] In the technical solution, the overall length of the driving rod driving member can be adjusted by threading the fixing section and the adjusting section, and can be suitable for different sizes of reducers.

[0027] The beneficial effects of the present invention are:

[0028] 1. By injecting liquid into the injection hole, the liquid flows into the middle hole of the reducer and reducer, increasing the liquid pressure, and making the reducer and reducer be expanded from the middle hole along the diameter direction to be consistent with the shape of the middle part of the mold cavity, the molding of the reducer and reducer can be realized. At the same time, the push head gradually moves toward the middle part of the cavity to compensate for the deformation and thinning of the large head position, ensuring the uniformity of the wall thickness of the reducer and reducer after molding, ensuring the quality of the reducer and reducer, and improving product consistency.

[0029] 2. The size head blank can also rotate circumferentially during the gradual forming process under the action of liquid pressure in the middle hole, which can make the wall thickness of the size head more uniform and the roundness better.

[0030] 3. When the roughcast blanks are rotated to a certain extent and most of the outer walls have not yet contacted the inner wall of the mold cavity, stop rotating to prevent excessive friction between the outer walls of the roughcast blanks and the inner wall of the cavity, thereby ensuring the appearance quality and roughness of the outer walls of the roughcast blanks.

[0031] 4. After the rotating top shaft moves to make the driven rod move out of the length range of the driving rod, the driving motor does not need to continue working. At this time, the pressure sensor can automatically control the driving motor to stop working, which is energy-saving and intelligent.

[0032] 5. The overall length of the driving rod driving member can be adjusted by threading the fixed section and the adjusting section, and can be suitable for different sizes of reducers. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is the process flow of the present invention;

[0034] Figure 2 It is a half-section diagram of the finished product of the reducer and reducer of the present invention;

[0035] Figure 3 is a cross-sectional view of the apparatus of the present invention;

[0036] Figure 4 This is the equipment status diagram when the push head just contacts the large and small head blank in the cavity;

[0037] Figure 5 This is the status diagram of the equipment after the size head is formed in place;

[0038] Figure 6 This is a half-section view of the two formed large and small heads.

[0039] The symbols in the figure are:

[0040] 1. Upper die; 2. Lower die; 3. Cavity; 4. Finished reducer and reducer; 5. Rough reducer and reducer; 6. Pusher; 7. Injection hole; 8. Middle hole; 9. Rotating top shaft; 10. Positioning inner cone; 11. Positioning outer cone; 12. Follower rod; 13. Driving motor; 14. Rotating disk; 15. Driving rod; 16. Initial pressure distance; 17. Fixed section; 18. Adjusting section. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0042] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0045] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various processes may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0046] Embodiment 1:

[0047] like Figure 1-6 As shown, a processing technology for reducing and reducing heads includes the following steps:

[0048] Step S1: loading, starting the hydraulic system to lift the upper die 1, placing the size blank 5 into the cavity 3 of the forming die, and resetting the upper die 1 to close the die, wherein the size blank 5 includes the length of two size blanks 5;

[0049] Step S2: Forming, start the hydraulic system to move the push head 6 toward the large and small head blanks 5, start the water pressure system to inject liquid into the injection hole 7 so that the liquid pressure in the middle hole 8 reaches a preset value, and the control system controls the drive motor 13 to rotate, so that the large and small head blanks 5 are gradually expanded and formed under the action of hydraulic pressure, and the push head 6 gradually moves toward the middle of the cavity 3 to compensate for the deformation and thinning of the large head position. At the same time, the circumferential material leveling structure rotates the large and small head blanks 5 circumferentially to form evenly. When the forming is almost in place, the circumferential material leveling structure stops rotating the large and small head blanks 5 circumferentially, and the push head 6 moves gradually, and the liquid pressure is maintained until the large and small heads are formed in place;

[0050] Step S3: unloading, stopping the water pressure system to drain the liquid, the hydraulic system makes the push head 6 move in the opposite direction to reset, and lifts the upper mold 1, and takes out the reducer and reducer that have completed step S2 from the cavity 3 of the forming mold;

[0051] Step S4: Cutting: Cut the reducer taken out in step S3 in half along the vertical center line direction to obtain two reducers, and cut off the excess length of the other ends of the two reducers for use with the circumferential material leveling structure.

[0052] This processing technology can improve product consistency and improve product quality.

[0053] Embodiment 2:

[0054] like Figure 3-5 As shown, the molding equipment includes a water pressure system, a control system and a hydraulic system, and also includes a molding mold and a pusher head 6. The molding mold includes an upper mold 1 and a lower mold 2. The hydraulic system can control the upper mold 1 to move up and down. After the upper mold 1 and the lower mold 2 are molded together, a cavity 3 for accommodating the large and small head blanks 5 is formed in the middle. The shape of the middle part of the cavity 3 is the same as the contour shape of the two axially symmetrically connected large and small head finished products 4; the pusher head 6 is arranged at both ends of the molding mold. Under the control of the control system, the pusher head 6 can be inserted into the two ends of the molding mold and move toward the middle of the cavity 3. The pusher head 6 is sealed and connected to the molding mold cavity 3. Each pusher head 6 is provided with a liquid injection hole 7, and the liquid injection hole 7 is connected with the middle hole 8 of the large and small heads. By injecting liquid into the injection hole 7, the liquid flows into the middle hole 8 of the reducer and reducer, increasing the liquid pressure, and making the reducer and reducer be expanded from the middle hole 8 along the diameter direction to be consistent with the shape of the middle part of the mold cavity 3, the molding of the reducer and reducer can be realized. At the same time, the push head 6 gradually moves toward the middle part of the cavity 3 to compensate for the deformation and thinning of the large head position, thereby ensuring the uniformity of the wall thickness of the reducer and reducer after molding, and ensuring the quality of the reducer and reducer.

[0055] Embodiment 3:

[0056] like Figure 3-5As shown, it also includes a circumferential material leveling structure, and the circumferential material leveling structure also includes a rotating top shaft 9 and a driving structure. The rotating top shaft 9 is sleeved in each push head 6, and the rotating top shaft 9 is axially fixedly connected to the push head 6. Both ends of the rotating top shaft 9 extend out of the push head 6 respectively, and both ends of the middle hole 8 of the large and small head blanks 5 are provided with positioning inner cones 10. The part extending from one end of the rotating top shaft 9 points to the middle of the molding mold cavity 3 and is provided with a positioning outer cone 11 that can match the positioning inner cone 10 of the large and small head blanks 5. When the end face of the push head 6 contacts the end face of the large and small head blanks 5, the positioning outer cone 11 contacts the positioning inner cone 10, and the part extending from the other end of the rotating top shaft 9 extends outwardly along the diameter direction with a driven rod 12; the driving structure includes a driving motor 13, a rotating disk 14 and a driving rod 15. The driving motor 13 is fixedly arranged on the molding equipment, and the output end of the driving motor 13 A rotating disk 14 capable of circumferential rotation is provided, and a driving rod 15 is vertically provided on the rotating disk 14; the above-mentioned driving structure is provided on one end of each rotating top shaft 9 close to the driven rod 12, the rotating top shaft 9 is coaxial with the rotating disk 14, the driven rod 12 and the driving rod 15 are perpendicular to each other, the radial distance from the outer end of the driven rod 12 to the axis of the rotating top shaft 9 is greater than the radial distance from the axis of the rotating disk 14 to the driving rod 15, and when the push head 6 moves toward the large and small head blanks 5 and the head just contacts the end faces of the large and small head blanks 5, the distance between the driven rod 12 and the rotating disk 14 is the initial pressing distance 16, and the axial length of the driving rod 15 is less than the shortened distance from the blank forming to the finished product of the large and small heads, and the initial pressing distance 16 is equal to half the length of the driving rod 15.

[0057] The driving motor 13 is driven to make the rotating disk 14 drive the driving rod 15 to rotate circumferentially. When the push head 6 moves toward the size head blank 5 with the rotating top shaft 9, the driving rod 15 rotates within the length range of the driving rod 15 to push the driven rod 12 to rotate, so that the rotating top shaft 9 produces circumferential rotation, and the positioning outer cone surface 11 of the rotating top shaft 9 is against the positioning inner cone surface 10 of the size head blank 5. The axially rotating rotating top shaft 9 is pressed at both ends of the size head blank 5. Therefore, the size head blank 5 will also rotate circumferentially, that is, it can also rotate circumferentially during the process of the size head blank 5 being gradually formed under the action of the liquid pressure in the middle hole 8. The wall thickness of the size heads is formed more evenly and the roundness is better. In addition, the push head 6 gradually approaches the middle of the cavity 3 to gradually shorten the size head blank 5. The rotating top shaft 9 moves accordingly to move the driven rod 12 out of the length range of the driving rod 15. Therefore, the driven rod 12 loses the drive of the driving rod 15 and the rotating top shaft 9 stops rotating circumferentially with the size head blank 5. Such a structure can make the size head blank 5 stop rotating when it is rotated to a certain extent and most of the outer wall has not yet contacted the inner wall of the molding mold cavity 3. It can prevent the outer wall of the size head from excessively rubbing against the inner wall of the cavity 3, thereby ensuring the appearance quality and roughness of the outer wall of the size head.

[0058] Embodiment 4:

[0059] A pressure sensor is provided on the driven rod 12 at a position where the driven rod 12 can contact the driving rod 15. The pressure sensor is connected to the control system. When the pressure sensor senses the disappearance of the pressure signal, the information is transmitted to the control system. The control system controls the drive to adjust the overall length of the driving member of the driving rod 15 by threading the fixed section 17 and the adjustment section 18, which can be suitable for different sizes of reducers. The motor stops rotating. After the rotating top shaft 9 moves to make the driven rod 12 move out of the length range of the driving rod 15, the driving motor 13 does not need to continue to work. At this time, the pressure sensor can automatically control the driving motor 13 to stop working, which is energy-saving and intelligent.

[0060] Embodiment 5:

[0061] The driving rod 15 includes a fixed section 17 and an adjusting section 18. One end of the fixed section 17 is fixedly arranged on the rotating disk 14, and the other end is connected to the adjusting section 18 through a threaded connection. By threading the fixed section 17 and the adjusting section 18, the overall length of the driving member of the driving rod 15 can be adjusted, and it can be suitable for different sizes of reducers.

[0062] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A molding device for processing large and small heads, characterized in that: It includes water pressure system, control system and hydraulic system, and also includes: A molding die, the molding die comprising an upper die (1) and a lower die (2), a hydraulic system being capable of controlling the upper die (1) to move up and down, a cavity (3) being formed in the middle for accommodating a size head blank (5) after the upper die (1) and the lower die (2) are closed, and the shape of the middle portion of the cavity (3) is the same as the contour shape of two size head finished products (4) connected axially symmetrically; Pusher heads (6), the pusher heads (6) are arranged at both ends of the molding die, and the pusher heads (6) can be inserted into both ends of the molding die and move toward the middle of the mold cavity (3) under the control of the control system, and the pusher heads (6) are sealed and connected to the mold cavity (3) of the molding die, and each pusher head (6) is provided with a liquid injection hole (7), and the liquid injection hole (7) is connected with the middle hole (8) of the large and small heads; Also included is a circumferential material screed structure, the circumferential material screed structure comprising: A rotating top shaft (9), each push head (6) is sleeved with the rotating top shaft (9), the rotating top shaft (9) is axially fixedly connected to the push head (6), the two ends of the rotating top shaft (9) extend out of the push head (6), the two ends of the middle hole (8) of the large and small head blank (5) are provided with positioning inner conical surfaces (10), the part extending from one end of the rotating top shaft (9) points to the middle part of the molding mold cavity (3) and is provided with a positioning outer conical surface (11) that can match the positioning inner conical surface (10) of the large and small head blank (5), when the end face of the push head (6) contacts the end face of the large and small head blank (5), the positioning outer conical surface (11) contacts the positioning inner conical surface (10), and the part extending from the other end of the rotating top shaft (9) extends outward along the diameter direction to form a driven rod (12); A driving structure, the driving structure comprising a driving motor (13), a rotating disk (14) and a driving rod (15), wherein the driving motor (13) is fixedly arranged on the molding device, and a rotating disk (14) capable of circumferential rotation is arranged at the output end of the driving motor (13), and a driving rod (15) is vertically arranged on the rotating disk (14); The driving structure is arranged at one end of each rotating top shaft (9) close to the driven rod (12), the rotating top shaft (9) is coaxial with the rotating disk (14), the driven rod (12) and the driving rod (15) are perpendicular to each other, the radial distance from the outer end of the driven rod (12) to the axis of the rotating top shaft (9) is greater than the radial distance from the axis of the rotating disk (14) to the driving rod (15), when the push head (6) moves toward the large and small head blank (5) and the head just contacts the end surface of the large and small head blank (5), the driven rod (12) is located between the two ends of the driving rod (15) and the distance from the rotating disk (14) is the initial pressing distance (16), and the axial length of the driving rod (15) is less than the shortening distance of the large and small head from the blank forming to the finished product; The initial pressure distance (16) is equal to half the length of the driving rod (15).

2. The molding equipment for processing the size head according to claim 1, characterized in that: A pressure sensor is provided on the driven rod (12) at a position facing the driving rod (15) and capable of contacting the driving rod (15). The pressure sensor is connected to a control system. When the pressure sensor senses that a pressure signal disappears, the pressure sensor transmits the information to the control system, and the control system controls the driving motor (13) to stop rotating.

3. The molding equipment for processing the size head according to claim 2, characterized in that: The driving rod (15) comprises a fixed section (17) and an adjusting section (18); one end of the fixed section (17) is fixedly arranged on the rotating disk (14), and the other end is connected to the adjusting section (18) via a threaded connection.

4. A process for processing the reducer and the reducer of a molding device for processing the reducer and the reducer as claimed in claim 1, characterized in that , including the following processes: Step S1: loading, starting the hydraulic system to lift the upper die (1), placing the size blank (5) into the cavity (3) of the forming die, and resetting the upper die (1) to close the die; Step S2: forming, starting the hydraulic system to move the pusher head (6) toward the large and small head blank (5), starting the water pressure system to inject liquid into the injection hole (7) so that the liquid pressure in the middle hole (8) reaches a preset value, the control system controls the drive motor (13) to rotate, so that the large and small head blank (5) is gradually expanded and formed, and the pusher head (6) gradually moves toward the middle of the cavity (3) to compensate for the deformation and thinning of the large head position, and at the same time, the circumferential material leveling structure drives the large and small head blank (5) to rotate circumferentially and evenly form. When the forming is almost in place, the circumferential material leveling structure stops rotating the large and small head blank (5) circumferentially, and the pusher head (6) gradually moves, and the liquid pressure is continuously maintained until the large and small heads are formed in place; Step S3: unloading, stopping the water pressure system to drain the liquid, the hydraulic system makes the push head (6) move in the opposite direction to reset, and lifts the upper mold (1), and takes out the reducer and reducer that have completed step S2 from the mold cavity (3) of the molding mold; Step S4: Cutting, cutting off the excess parts at both ends of the reducer taken out in step S3.

5. A process for processing a reducer and reducer according to claim 4, characterized in that: The size head blank (5) comprises the lengths of two size head blanks (5).

6. A process for processing a reducer and reducer according to claim 5, characterized in that: The cutting is firstly to cut in half along the vertical center line direction to obtain two reducers, and then cut off the excess length of the other ends of the two reducers for use with the circumferential material leveling structure.

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