Supporting ring forming equipment

Abstract

The utility model relates to the technical field of machining, and discloses supporting ring forming equipment which comprises a machine frame. The feeding assembly is mounted on the rack and used for driving flat strips to be fed; the conveying mechanism is mounted on the rack and used for driving the flat strips to be conveyed in the linear conveying direction; the constant-force bending assembly is installed on the rack and can conduct head pressing and constant-force abutting on the flat strip in the direction perpendicular to the linear conveying direction so that the flat strip can be bent in the direction perpendicular to the linear conveying direction; the constant-force bending assembly can move in the direction perpendicular to the linear conveying direction. The feeding assembly and the conveying mechanism drive the flat strips to be conveyed in the linear conveying direction, the conveyed flat strips are subjected to head pressing and abutting pressing through the constant-force bending assembly, and the flat strips are made to form equal-diameter supporting rings. The abutting position of the constant-force bending assembly in the vertical direction is adjusted in the mode that the pointer points to the target diameter scale, and different bending diameters of the flat strip are controlled so that supporting rings of different diameters can be formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of machining, particularly to a supporting ring forming equipment. BACKGROUND

[0002] The bottom supporting ring of the pressure vessel is an important component of the vessel; the bottom supporting ring is usually made of 2-4mm thick and 25-30mm wide flat strip by hand bending into a supporting ring with equal diameter. This hand forming process has the problems of irregular forming, cylindrical surface deformation and uneven end face, which seriously affects the quality and production efficiency of the product.

[0003] To solve the problems existing in the hand forming process, the existing technology develops an automatic supporting ring forming equipment to improve the precision control of forming and the consistency of product quality; at the same time, the development of automatic equipment can reduce manual operation and dangerous factors, improve production efficiency, improve the operating environment and enhance the work experience of operators.

[0004] However, the bending process of the existing supporting ring forming equipment can only process one diameter of supporting ring, and when another diameter of supporting ring needs to be processed, the pressure roller needs to be replaced or multiple coiling devices need to be purchased, which will seriously increase the equipment cost, and the utilization rate of the equipment is low, which is not conducive to the maintenance and management of the equipment. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a supporting ring forming equipment, which aims to solve the problem that the diameter of the supporting ring that can be processed by the existing supporting ring forming equipment is limited.

[0006] To solve the above technical problems, the utility model aims at realizing the following technical scheme: providing a supporting ring forming equipment for bending a flat strip into a supporting ring with equal diameter, comprising: a rack, a feeding assembly, a conveying mechanism and a constant force bending assembly;

[0007] The feeding assembly is installed on the rack and is used to drive the feeding of the flat strip;

[0008] The conveying mechanism is installed on the rack and is used to limit the transportation of the feeding flat strip along the preset straight line transportation direction;

[0009] The constant force bending assembly is installed on the rack and can press the flat strip and constantly resist the pressure in the vertical direction of the straight line transportation direction of the flat strip, so that the flat strip is bent in the vertical direction of the straight line transportation direction;

[0010] The constant force bending assembly can be moved and adjusted in the vertical direction of the straight line transportation direction to select the target diameter scale of the flat strip to be bent.

[0011] Further, the feeding assembly comprises a support part provided on one side of the rack, and a feeding slot with a width adapted to the flat strip is formed in the support part, and the feeding slot is directed towards the conveying mechanism.

[0012] Further, the conveying mechanism comprises a plurality of first guide assemblies, a feeding assembly and a pressing assembly.

[0013] The plurality of first guide assemblies are provided on the rack and used to guide the flat strip towards a straight conveying direction.

[0014] The feeding assembly is provided on the rack and used to drive the flat strip to move in the straight conveying direction.

[0015] The pressing assembly is provided on the rack and located above the feeding assembly, and used to press and limit the flat strip to move in the straight conveying direction.

[0016] Further, the feeding assembly comprises a plurality of driving wheels and a rotary driving member.

[0017] The plurality of driving wheels are provided side by side in the straight conveying direction inside the rack, and the plurality of driving wheels are located at the rear end of the feeding assembly in the straight conveying direction.

[0018] The rotary driving member is provided at the bottom of the rack and used to drive the plurality of driving wheels to rotate synchronously.

[0019] At least one first guide assembly is located at the front end of the plurality of driving wheels in the straight conveying direction, and at least one first guide assembly is located between the plurality of driving wheels in the straight conveying direction.

[0020] Further, the pressing assembly comprises a plurality of pressing wheels and a lifting driving member.

[0021] The plurality of pressing wheels are provided side by side in the straight conveying direction inside the rack, and the plurality of pressing wheels are located above the plurality of driving wheels and correspond to the plurality of driving wheels one by one.

[0022] The lifting driving member is provided at the top of the rack and used to drive the plurality of pressing wheels to move in the vertical direction of the straight conveying direction.

[0023] Further, the constant force bending assembly comprises a fixing frame, a sliding part, a pressing roller, an adjusting member, a diameter scale nameplate and a pointer.

[0024] The fixing frame is fixed on the rack.

[0025] The sliding part is slidingly installed on the fixing frame in the vertical direction of the straight conveying direction.

[0026] The pressing roller is rotatably installed on the sliding part, and the pressing roller corresponds to the driving wheel at the last end in the linear conveying direction among the plurality of driving wheels, and is used for pressing the flat strip in the vertical direction of the linear conveying direction with a constant force; wherein the pressing roller is provided with a roller tooth forming a pressing roller surface, and the roller tooth is used for pressing the head of the flat strip and making the flat strip tangent to the roller tooth surface, so as to realize the bending forming of the flat strip.

[0027] The adjusting part is installed on the fixed frame and connected with the sliding part, and is used for driving the sliding part to slide in the vertical direction of the linear conveying direction.

[0028] A diameter scale nameplate is installed on the fixed frame.

[0029] A pointer is installed on the sliding part.

[0030] The pressing roller corresponds to the driving wheel at the last end in the linear conveying direction among the plurality of driving wheels, and is used for constantly pressing the flat strip in the vertical direction of the linear conveying direction.

[0031] Further, the constant force bending assembly further comprises a second guide assembly; the second guide assembly is arranged on the sliding part and located at the bottom of the pressing roller; the second guide assembly is provided with an arc-shaped guide groove, and the arc-shaped guide groove is used for forming and limiting the flat strip after being pressed and bent by the pressing roller.

[0032] Further, the adjusting part comprises a lead screw part and a wheel disc part.

[0033] The lead screw part is installed on the fixed frame and arranged vertically to the linear conveying direction, and the sliding part is threadedly connected to the lead screw part.

[0034] The wheel disc part is arranged on the fixed frame and connected with one end of the lead screw part through gear meshing.

[0035] Further, the first guide assembly comprises a guide block and two guide rods; the guide block is provided with a guide opening; the two guide rods are inserted into the guide opening, and a guide slot is formed between the two guide rods.

[0036] Further, the surface of the driving wheel is provided with a knurled pattern.

[0037] The beneficial effects of the embodiment of the utility model are as follows: the flat strip is limitedly transported along the linear conveying direction through the cooperation of the feeding assembly and the conveying mechanism, and the head of the flat strip in transportation is pressed and constantly pressed by the constant force bending assembly, so that the flat strip is continuously bent and formed into a support ring with equal diameters in the transportation process.

[0038] The embodiment of the utility model needs to process the support circle of different diameter size, only need to adjust the vertical position of constant force bending assembly in the direction of straight line transportation, namely the target scale line position of diameter scale nameplate, can control the target bending diameter of flat strip, thereby forms the support circle of different diameter size. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed in the embodiment description will be briefly introduced, obviously, the drawings in the following description are some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0040] Figure 1 The three-dimensional structure schematic diagram of support circle forming equipment provided by the embodiment of the utility model is shown.

[0041] Figure 2 The plane structure schematic diagram of support circle forming equipment provided by the embodiment of the utility model is shown.

[0042] Figure 3 The structure schematic diagram of partial first perspective of support circle forming equipment provided by the embodiment of the utility model is shown.

[0043] Figure 4 The structure schematic diagram of partial second perspective of support circle forming equipment provided by the embodiment of the utility model is shown.

[0044] Figure 5 The structure schematic diagram of partial third perspective of support circle forming equipment provided by the embodiment of the utility model is shown.

[0045] Figure 6 The structure schematic diagram of partial fourth perspective of support circle forming equipment provided by the embodiment of the utility model is shown.

[0046] Figure 7 The structure schematic diagram of constant force bending assembly provided by the embodiment of the utility model is shown.

[0047] Figure 8 The structure schematic diagram of first guide assembly provided by the embodiment of the utility model is shown.

[0048] Identification explanation in the drawing:

[0049] 1, rack;

[0050] 2, feeding assembly; 21, support part; 22, feeding groove;

[0051] 3, transport mechanism; 31, first guide assembly; 311, guide block; 312, guide port; 313, guide rod; 32, feeding assembly; 321, driving wheel; 322, rotary driving member; 323, tensioning wheel; 33, pressing assembly; 331, pressing wheel; 332, lifting driving member;

[0052] 4, constant force bending assembly; 41, fixing frame; 411, diameter scale nameplate; 42, sliding part; 421, pointer; 43, pressing roller; 44, adjusting member; 441, screw member; 442, wheel disc member; 45, second guide assembly;

[0053] 5, base assembly;

[0054] 6, flat strip. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0056] It should be understood that the terms "comprising" and "including" as used in the specification and the appended claims indicate the presence of the recited features, integers, steps, operations, elements, and / or components but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0057] It should also be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0058] It should be further understood that the term "and / or" as used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0059] As Figure 1 , Figure 2 and Figure 3 , the present application embodiment provides a support ring forming equipment for bending the flat strip 6 into a support ring, comprising: a rack 1, a feeding assembly 2, a transport mechanism 3 and a constant force bending assembly 4;

[0060] The feeding assembly 2 is installed on the frame 1 and is used to drive the flat strip 6 to feed;

[0061] The conveying mechanism 3 is installed on the frame 1 and is used to drive the feeding flat strip 6 to be positioned and conveyed along a preset straight conveying direction;

[0062] The constant force pressing and bending assembly 4 is installed on the frame 1 and can constantly press and resist the flat strip 6 in the vertical direction of the straight conveying direction of the flat strip 6, so that the flat strip 6 is bent in the vertical direction of the straight conveying direction;

[0063] The constant force pressing and bending assembly 4 can be adjusted in the vertical direction of the straight conveying direction to select the target diameter scale of the flat strip to be pressed and bent.

[0064] In the embodiment, the frame 1 is composed of a plurality of support plates, a plurality of support rods and the like, serving as a support carrier. The flat strip 6 is fed by the feeding assembly 2, which generally feeds in the horizontal direction. The feeding assembly 2 and the conveying mechanism 3 can be arranged in the same horizontal direction. The feeding assembly 2 drives the flat strip 6 to feed towards the conveying mechanism 3. That is, the direction of the feeding assembly 2 towards the conveying mechanism 3 is the straight conveying direction of the flat strip 6. After the flat strip 6 reaches the conveying mechanism 3 from the feeding assembly 2, the flat strip 6 is continuously driven by the conveying mechanism 3 to move along the straight conveying direction. The conveying mechanism 3 has a direction positioning function for the movement of the flat strip, so as to ensure that the flat strip moves stably along the straight conveying direction during movement and does not deviate or exceed the predetermined range. After the flat strip 6 is positioned and conveyed by the conveying mechanism 3, the flat strip 6 reaches the constant force pressing and bending assembly 4. The constant force pressing and bending assembly 4 presses and constantly resists the flat strip 6 during conveying, so that the flat strip 6 is continuously bent and formed into a support ring with equal diameters during conveying. The process of bending the flat strip 6 is automatically completed by the equipment, which is controlled by a key switch, eliminating the defects of manual bending.

[0065] Specifically, the constant force pressing and bending assembly 4 presses and constantly resists the flat strip 6 during conveying in the vertical direction of the straight conveying direction, so that the flat strip 6 is bent by the lateral pressure and the constant force pressing and bending assembly 4 maintains a constant bending force, so that the flat strip 6 is continuously pressed and formed into a support ring with equal diameters during conveying, and the formed support ring is more beautiful, without straight sections and inner and outer slopes.

[0066] Specifically, when different diameter support rings need to be processed, the pressing position of the constant force pressing and bending assembly 4 in the vertical direction of the straight conveying direction is adjusted by the pointer pointing to the target diameter scale, so as to control the target bending diameter of the flat strip 6, thereby forming support rings with different diameters.

[0067] In a specific embodiment, the straight line transportation direction is horizontal direction, and the vertical direction of the straight line transportation direction is vertical direction, that is, the position adjustment of the constant force pressing and bending assembly 4 is also adjusted in the vertical direction, the constant force pressing and bending assembly 4 is arranged at the side upper position of the transportation mechanism 3, when the constant force pressing and bending assembly 4 is adjusted downward, the bending diameter of the flat strip 6 can be controlled to become smaller, and when the constant force pressing and bending assembly 4 is adjusted upward, the bending diameter of the flat strip 6 can be controlled to become larger.

[0068] In this specific embodiment, when the flat strip 6 is bent, it is directed downward, in order to ensure that there is enough forming space below, the support plate at the bottom of the rack 1 can be arranged to extend horizontally outward, and a base assembly 5 is arranged at the bottom of the extended part, the entire rack 1 is raised by the base assembly 5, and the space below the corresponding rack 1 on one side of the base assembly 5 is used as the forming space required when the flat strip 6 is bent downward.

[0069] As shown in the specific description of the feeding assembly 2 of the present application. Figure 4

[0070] In an embodiment, the feeding assembly 2 includes a support part 21, the support part 21 is arranged on one side of the rack 1, and a feeding groove 22 with a width suitable for the flat strip 6 is formed on the support part 21, the guiding direction of the feeding groove 22 is directed toward the transportation mechanism 3.

[0071] In this embodiment, one end of the support part 21 is fixed to one side of the rack 1 by a screw, the end of the support part 21 away from the rack 1 can be arranged to be protruding, the protruding height is suitable for the height of the inlet of the transportation mechanism 3, two protruding edges are arranged on both sides of the protruding position to form the feeding groove 22, and the flat strip 6 placed on the feeding groove 22 can be kept directed toward the inlet of the transportation mechanism 3, so that the flat strip 6 can accurately enter the transportation mechanism 3 in the horizontal direction for transportation.

[0072] As shown in the specific description of the transportation mechanism 3 of the present application. Figures 3-7

[0073] In an embodiment, the transportation mechanism 3 includes a plurality of first guide assemblies 31, a feeding assembly 32 and a pressing assembly 33;

[0074] The plurality of first guide assemblies 31 are arranged on the rack 1 and used to guide the flat strip 6 to the straight line transportation direction;

[0075] The feeding assembly 32 is arranged on the rack 1 and used to drive the flat strip 6 to move in the straight line transportation direction;

[0076] The pressing assembly 33 is arranged on the rack 1 and located above the feeding assembly 32, used to press and limit the flat strip 6 to increase the conveying friction of the flat strip 6, so that the flat strip 6 moves in the straight line transportation direction.

[0077] In this embodiment, as shown in the specific description of the transportation mechanism 3 of the present application. Figure 8 ​​As shown, the first guide assembly 31 comprises a guide block 311 and two guide rods 313; the guide block 311 is provided with a guide port 312; the two guide rods 313 are inserted into the guide port 312, and a guide slot is formed between the two guide rods 313. When the flat strip 6 reaches the conveying mechanism 3 from the feeding assembly 2, it first reaches the guide slot of at least one first guide assembly 31, and is guided by the guide slot of the first guide assembly 31 to move towards the feeding assembly 32 and the pressing assembly 33. The feeding assembly 32 is a driving component with a straight conveying function, and the pressing assembly 33 presses the flat strip 6 onto the feeding assembly 32, so as to realize the straight conveying of the flat strip 6 driven by the feeding assembly 32. The flat strip 6 continues to be limited by the guide slots of other first guide assemblies 31 during the conveying process, so as to ensure the accuracy of the conveying direction of the flat strip 6.

[0078] In an embodiment, the feeding assembly 32 comprises a plurality of driving wheels 321 and a rotary driving member 322.

[0079] The plurality of driving wheels 321 are arranged side by side inside the rack 1 in the straight conveying direction, and the plurality of driving wheels 321 are located at the rear end of the feeding assembly 2 in the straight conveying direction.

[0080] The rotary driving member 322 is arranged at the bottom of the rack 1 and is used to drive the plurality of driving wheels 321 to rotate synchronously.

[0081] At least one first guide assembly 31 is located at the front end of the plurality of driving wheels 321 in the straight conveying direction, and at least one first guide assembly 31 is located between the plurality of driving wheels 321 in the straight conveying direction.

[0082] In this embodiment, the process of conveying the flat strip 6 by the feeding assembly 32 is as follows: after the flat strip 6 is fed from the feeding assembly 2, it first enters the guide slot of a first guide assembly 31 for one-time limiting, and then reaches the first driving wheel 321. The rotary driving member 322 drives the driving wheel 321 to continuously rotate, and the flat strip 6 can continuously move on the driving wheel 321. After the flat strip 6 passes through at least one driving wheel 321, it enters the guide slot of a first guide assembly 31 for two-time limiting. Preferably, two driving wheels 321 are arranged in this embodiment, and a first guide assembly 31 is arranged between the two driving wheels 321, so as to stably convey the flat strip 6 in the straight conveying direction.

[0083] In this embodiment, the surface of the driving wheel 321 can be provided with knurling, which can increase the friction coefficient between the driving wheel 321 and the flat strip 6, prevent the flat strip 6 from slipping, keep the flat strip 6 at a constant speed, and ensure the smoothness of the bending of the flat strip 6.

[0084] In the embodiment, the rotating driving member 322 is an electric motor, and the rotating shaft of the electric motor is connected to the plurality of driving wheels 321 through a transmission belt, so that the plurality of driving wheels 321 are simultaneously driven to rotate. Specifically, in order to ensure the rotation synchronization of the plurality of driving wheels 321, a chain disc is arranged at the end of each driving wheel 321, a gear is arranged at the rotating shaft of the electric motor, and the transmission belt is a chain. The chain is used to drive the plurality of driving wheels 321 to rotate synchronously. Further, in order to adjust the tension of the chain, a movable tension pulley 323 is arranged on the rack, and the chain is sleeved on the tension pulley 323. The tension of the chain can be adjusted by moving the tension pulley 323.

[0085] In an embodiment, the pressing assembly 33 comprises a plurality of pressing wheels 331 and a lifting driving member 332.

[0086] The plurality of pressing wheels 331 are arranged side by side in the rack 1 along the straight conveying direction, and the plurality of pressing wheels 331 are located above the plurality of driving wheels 321 and correspond to the plurality of driving wheels 321 one by one.

[0087] The lifting driving member 332 is arranged at the top of the rack 1 and is used to drive the plurality of pressing wheels 331 to move vertically along the straight conveying direction.

[0088] In the embodiment, the pressing assembly 33 is used to press the flat strip 6, so that the flat strip 6 is tightly attached to the driving wheel 321, thereby ensuring the stable conveying of the flat strip 6. The number of the pressing wheels 331 in the pressing assembly 33 can be the same as the number of the driving wheels 321, and the positions of the pressing wheels 331 correspond to the positions of the driving wheels 321 one by one, that is, one pressing wheel 331 corresponds to one driving wheel 321 directly above. The lifting driving member 332 can simultaneously drive the plurality of pressing wheels 331 to move up and down synchronously, or a plurality of lifting driving members 332 can be arranged, and one lifting driving member 332 drives one pressing wheel 331 to move up and down.

[0089] In the embodiment, the position at which the lifting driving member 332 drives the pressing wheel 331 to move down needs to be adjusted according to the thickness of the flat strip 6. That is, the gap between the pressing wheel 331 and the corresponding driving wheel 321 after the pressing wheel 331 moves down needs to ensure that the flat strip 6 can pass through stably, and the gap also needs to play a role in fixing the flat strip 6 and continuously conveying the flat strip 6 during the bending process of the flat strip 6.

[0090] In the embodiment, the lifting driving member 332 can be a component with a telescopic adjustment function, such as a pneumatic cylinder or an electric cylinder.

[0091] As shown in FIG. 4, the constant-force bending and pressing assembly 4 will be specifically introduced below. Figure 7

[0092] In an embodiment, the constant-force bending and pressing assembly 4 comprises a fixed frame 41, a sliding part 42, a pressing roller 43, an adjusting member 44, a diameter scale nameplate 411, and a pointer 421. ​

[0093] The fixed frame 41 is fixed to the rack 1;

[0094] The sliding part 42 is slidably installed on the fixed frame 41 in the vertical direction of the linear conveying direction;

[0095] The compression roller 43 is rotatably installed on the sliding part 42, and the compression roller 43 corresponds to the driving wheel 321 located at the last end of the linear conveying direction among the plurality of driving wheels 321, and is used to press the flat strip 6 in the head and constant force in the vertical direction of the linear conveying direction; wherein the compression roller 43 is provided with a roller tooth forming a compression roller surface, the roller tooth is used to press the flat strip head and make the flat strip 6 tangent to the roller tooth surface, so as to realize the bending forming of the flat strip 6;

[0096] The adjusting part 44 is installed on the fixed frame 41 and connected with the sliding part 42, and is used to drive the sliding part 42 to slide in the vertical direction of the linear conveying direction;

[0097] The diameter scale nameplate 411 is installed on the fixed frame 41;

[0098] The pointer 421 is installed on the sliding part 42.

[0099] In this embodiment, the fixed frame 41 is used as the carrier of the entire constant force bending assembly 4, and the fixed frame 41 can be a part of the rack 1 or can be separately installed on a component carrier of the rack 1.

[0100] In this embodiment, the sliding part 42 is slidably installed on the fixed frame 41 in the vertical direction of the linear conveying direction, that is, in the vertical direction, and the sliding part 42 can drive the compression roller 43 to move synchronously when the sliding part 42 slides in the vertical direction, and the compression roller 43 can change position with the driving wheel 321 located at the last end among the plurality of driving wheels 321 when the compression roller 43 moves up and down, thereby realizing the adjustment of the bending diameter of the flat strip 6.

[0101] In this embodiment, the adjusting part 44 is used to drive the sliding part 42 to move on the fixed frame 41, thereby realizing the adjustment of the position of the compression roller 43, that is, realizing the adjustment of the bending diameter of the flat strip 6. In order to conveniently and accurately adjust the bending diameter of the flat strip 6, a scale method can be used for marking and identification to assist the accurate adjustment of the adjusting part 44.

[0102] In this embodiment, the diameter scale nameplate 411 is provided with two and installed on both sides of the fixed frame 41, and a multi-zone scale method is used for marking a plurality of diameter ranges on the two diameter scale nameplates 411, and a plurality of pointers 421 are provided and correspond to a plurality of diameter ranges respectively. By moving the sliding part 42 and driving the pointer 421 to move, the diameter range to which the target bending diameter belongs is selected, and the position pointed by the pointer corresponding to the diameter range is taken as the adjustment position, and the target bending diameter is positioned in the diameter range, so that the equal-diameter support ring with the target bending diameter can be bent.

[0103] In the embodiment, the flat strip is bent by the cooperation of the pressing roller 43 and the corresponding driving wheel 321. The pressing roller 43 also needs to rotate synchronously with the driving wheel 321, so the rotating driving member 322 drives the driving wheel 321 to rotate and also drives the pressing roller 43 to rotate. Specifically, taking the chain transmission described above as an example, the chain is sleeved on the gear arranged at the end of the pressing roller 43 to realize synchronous connection.

[0104] Please continue to refer to Figure 7 In an embodiment, the adjusting member 44 comprises a lead screw member 441 and a wheel disc member 442.

[0105] The lead screw member 441 is arranged on the fixed frame 41 and is perpendicular to the linear conveying direction, and the sliding part 42 is threadedly connected to the lead screw member 441.

[0106] The wheel disc member 442 is arranged on the fixed frame 41 and is connected to one end of the lead screw member 441 through gear meshing.

[0107] In the embodiment, the adjusting member 44 adopts lead screw adjustment, which has high transmission efficiency and small friction loss, and can ensure the accuracy during adjustment. Moreover, the lead screw adjustment is more stable.

[0108] In the embodiment, the wheel disc member 442 can be a manual wheel disc or an automatic wheel disc. The wheel disc member 442 and one end of the lead screw member 441 are connected through a bevel gear to realize the transmission of rotary force.

[0109] In an embodiment, the constant force bending assembly 4 further comprises a second guide assembly 45. The second guide assembly 45 is arranged on the sliding part 42 and located at the bottom of the pressing roller 43. The second guide assembly 45 is provided with an arc-shaped guide groove for limiting the shape of the flat strip 6 after being bent by the pressing roller 43.

[0110] In the embodiment, the second guide assembly 45 has a block structure, and the arc-shaped guide groove in the second guide assembly 45 can prevent the bent flat strip 6 from swinging and twisting freely.

[0111] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A support ring forming apparatus for bending a flat strip into a support ring of uniform diameter, characterized by, The utility model relates to a kind of constant force bending machine, including: Rack; Feed assembly, mounted on the rack and used to drive flat strip feed; Transport mechanism, mounted on the rack and used to drive the straight line transport direction of feed flat strip and limit transport; Constant force bending assembly, mounted on the rack and can be in the vertical direction of the straight line transport direction of flat strip Head and constant force resistance pressure to flat strip, to make flat strip bend in the vertical direction of straight line transport direction; Wherein, the constant force bending assembly can be moved along the vertical direction of straight line transport direction, to select the target diameter scale of flat strip to be bent.

2. The support ring forming apparatus of claim 1, wherein The feed assembly includes a support portion, which is provided on one side of the rack. The support portion has a feed slot with a width adapted to the flat strip. The feed slot is directed towards the transport mechanism.

3. The support ring forming apparatus of claim 1 wherein, The transport mechanism includes: A plurality of first guide assemblies are provided on the rack and used to guide the flat strip towards the straight line transport direction. A feeding assembly is provided on the rack and used to move the flat strip in the straight line transport direction. A pressing assembly is provided on the rack above the feeding assembly and used to press and limit the flat strip to move in the straight line transport direction.

4. The support ring forming apparatus of claim 3, wherein The feeding assembly includes: A plurality of drive wheels are provided side by side inside the rack in the straight line transport direction. The plurality of drive wheels are located at the rear end of the feed assembly in the straight line transport direction. A rotary drive member is provided at the bottom of the rack and used to drive the plurality of drive wheels to rotate synchronously. At least one first guide assembly is located at the front end of the plurality of drive wheels in the straight line transport direction. At least one first guide assembly is located between the plurality of drive wheels in the straight line transport direction.

5. The support ring forming apparatus of claim 4, wherein The pressing assembly includes: A plurality of pressing wheels are provided side by side inside the rack in the straight line transport direction. The plurality of pressing wheels are located above the plurality of drive wheels and correspond to the plurality of drive wheels one by one. A lifting drive member is provided at the top of the rack and used to drive the plurality of pressing wheels to move in the vertical direction of the straight line transport direction.

6. The support ring forming apparatus of claim 4 wherein, The constant force bending assembly includes: A fixed frame is fixed to the rack. A sliding portion is slidably mounted on the fixed frame in the vertical direction of the straight line transport direction. A press roller is rotatably mounted on the sliding portion. The press roller corresponds to the drive wheel located at the last end of the plurality of drive wheels in the straight line transport direction and is used to press and resist the flat strip in the vertical direction of the straight line transport direction. The press roller has roller teeth forming a roller surface. The roller teeth are used to press the head of the flat strip and make the flat strip tangent to the roller surface to realize the bending and forming of the flat strip. An adjusting member is mounted on the fixed frame and connected to the sliding portion. The adjusting member is used to drive the sliding portion to slide in the vertical direction of the straight line transport direction. A diameter scale nameplate is mounted on the fixed frame. A pointer is mounted on the sliding portion.

7. The support ring forming apparatus of claim 6, wherein The constant force bending assembly further includes: A second guide assembly is provided on the sliding portion and located at the bottom of the press roller. The second guide assembly has an arc-shaped guide slot. The arc-shaped guide slot is used to limit the shape of the flat strip after being bent by the press roller.

8. The support ring forming apparatus of claim 6, wherein The adjusting member includes: A screw rod is arranged on the fixed frame and is perpendicular to the linear conveying direction, and the sliding part is threadedly connected to the screw rod; A wheel disc is arranged on the fixed frame and is connected to one end of the screw rod through gear engagement.

9. The support ring forming apparatus of claim 3 wherein, The first guide assembly comprises: A guide block is provided with a guide opening; Two guide rods are inserted into the guide opening, and a guide gap is formed between the two guide rods.

10. The support ring forming apparatus of claim 4 wherein, The surface of the driving wheel is provided with knurling.

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