Double-hot-plate rotating mechanism
The non-contact heating and independent temperature control technology of the double hot plate rotating mechanism solves the problems of material drawing and inaccurate temperature control in existing hot plate welding, and achieves uniform heating of the weld end face and high-quality welding effect.
Patent Information
- Application Number
- CN202422840044.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Existing hot plate welding technology has the problems of material drawing, weld defects and melting, and cannot adapt to the welding requirements of different materials or wall thicknesses. In particular, it is difficult to achieve precise temperature control under contact heating method.
It adopts a double-heat plate rotating mechanism and a non-contact heating method. The first and second heating plates with independent temperature control are used to rotate and heat the weld end face, ensuring that the weld end face is heated evenly and adapting to the welding requirements of different materials or wall thicknesses.
The weld end face is heated evenly, the welding effect is better, the weld flange is rounder, the applicability is stronger, and high-quality welding requirements are met.
Smart Images
Figure CN223442878U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hot melting welding technical field especially relates to a double hot plate rotating mechanism. BACKGROUND
[0002] Hot plate welding process is a common hot welding mode, which has the advantages of high welding strength and high efficiency. The existing hot plate mainly adopts the contact type heating mode, which is commonly used for heating PE / PP plastic pipe. The welding temperature of such materials is usually only 220 DEG C, and the requirements for temperature and weld are not high. However, the contact type hot plate has inherent disadvantages, and the material attached to the hot plate may appear wire drawing phenomenon, which affects the welding effect, and excessive contact may cause defects and vertical fusion phenomenon in the weld.
[0003] With the use of special materials, the welding requirement is higher and higher, and the contact type hot plate cannot be applied to more occasions. In addition, in some special scenes, the materials or wall thickness of two welded parts may be different, at which time different temperature settings are required, and the temperature control is more accurate. INVENTION CONTENTS
[0004] The utility model discloses a double hot plate rotating mechanism, which solves the problems in the background art, adopts a non-contact heating mode, and makes the weld end face evenly heated to ensure the welding effect.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A double hot plate rotating mechanism, comprising a mounting plate, a slewing bearing, a first heating plate, a second heating plate and a driving assembly, wherein:
[0007] The two slewing bearings are symmetrically distributed on the two sides of the mounting plate, and the inner rings of the two slewing bearings are fixed with the mounting plate respectively, and the outer rings of the two slewing bearings are connected with the driving assembly respectively, and the driving assembly is used for driving the outer rings of the two slewing bearings to rotate synchronously or rotate respectively;
[0008] The opposite surfaces of the outer rings of the two slewing bearings are respectively provided with rotating discs, the first heating plate is installed on one side rotating disc, and the second heating plate is installed on the other side rotating disc, and the first heating plate and the second heating plate are independently temperature controlled;
[0009] The two weld end faces to be welded are respectively close to and not in contact with the first heating plate and the second heating plate, and the first heating plate and the second heating plate can rotate relative to the two weld end faces and heat the two weld end faces.
[0010] As an option, the double hot plate rotating mechanism further comprises an electric slip ring for transmitting electric energy to the first heating plate and the second heating plate, an outer stator of the electric slip ring is mounted on the mounting plate and the inner rings of the two slewing bearings, and an inner rotor of the electric slip ring is mounted on the two rotating discs, and the inner rotor is electrically connected to the first heating plate or the second heating plate.
[0011] As an option, the outer rings of the two slewing bearings are respectively provided with outer gears, the drive assembly comprises a transmission shaft and a servo motor, the transmission shaft is rotationally arranged on the mounting plate, and the two ends of the transmission shaft are provided with transition gears which are in mesh with the outer gears of the two slewing bearings one by one, and the servo motor is fixed on the mounting plate, and a driving gear is arranged on an output shaft of the servo motor and is in mesh with any transition gear.
[0012] As an option, the outer rings of the two slewing bearings are respectively provided with outer gears, the drive assembly comprises two servo motors, the two servo motors are respectively fixed on the mounting plate, a driving gear is arranged on an output shaft of each servo motor, and the two driving gears are in mesh with the outer gears of the two slewing bearings one by one.
[0013] As an option, a connecting disc is further arranged between the mounting plate and any slewing bearing, the inner ring of the corresponding slewing bearing is indirectly fixed with the mounting plate through the connecting disc, and the connecting disc is used for adjusting the distance between the two slewing bearings.
[0014] As an option, a transition disc is arranged between the outer ring of the slewing bearing and the rotating disc.
[0015] As an option, heat shields are respectively arranged between the rotating disc and the first heating plate and between the rotating disc and the second heating plate.
[0016] As an option, the surface of the first heating plate and the surface of the second heating plate are respectively provided with nano coatings.
[0017] As an option, the mounting plate is respectively provided with a shield on the two sides, and the shield is provided with a heating opening which exposes only the first heating plate and the second heating plate.
[0018] As an option, the shield is formed with independent cavities for placing only the first heating plate and the second heating plate.
[0019] The utility model discloses the beneficial effect:
[0020] The double-heat-plate rotating mechanism designs the rotatable first heating plate and second heating plate to non-contact heat two welding opening end faces, the rotating heating form makes the welding opening end faces evenly heated, the welding effect is better, the welding opening flanging is more round, and when facing the situations that the two welding opening end faces are different in material or size, the first heating plate and the second heating plate can independently control temperature, high-quality welding requirements are met, and the applicability is stronger. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a structure schematic view of the double-heat-plate rotating mechanism of the utility model embodiment removes the shield;
[0022] Figure 2 is a sectional view of the double-heat-plate rotating mechanism of the utility model embodiment.
[0023] IN THE DRAWINGS:
[0024] 1, mounting plate; 2, slewing bearing; 3, first heating plate; 4, second heating plate; 5, rotating disc; 6, electric slip ring; 7, external gear; 8, transmission wheel shaft; 9, servo motor; 10, transition gear; 11, driving gear; 12, connecting disc; 13, transition disc; 14, heat insulation cover; 15, shield; 16, heating port; 17, independent cavity. DETAILED DESCRIPTION
[0025] The utility model will be further explained in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.
[0026] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0027] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature is "on", "above" and "upper surface" of second feature includes that first feature is directly above and obliquely above second feature, or only indicates that the horizontal height of first feature is higher than second feature. First feature is "under", "below" and "under surface" of second feature includes that first feature is directly below and obliquely below second feature, or only indicates that the horizontal height of first feature is less than second feature.
[0028] In the description of the embodiment, the orientation or position relationship of the terms "on", "under", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.
[0029] In addition, the terms "first", "second" and the like are only used for differentiation in description, and have no special meaning.
[0030] Please refer to Figure 1 And Figure 2 As shown in the drawings, the embodiment provides a double hot plate rotating mechanism, which comprises a mounting plate 1, a slewing bearing 2, a first heating plate 3, a second heating plate 4 and a driving assembly, wherein:
[0031] Two slewing bearings 2 are symmetrically distributed on the two sides of the mounting plate 1, and the inner rings of the two slewing bearings 2 are fixed with the mounting plate 1 respectively, the outer rings of the two slewing bearings 2 are connected with the driving assembly respectively, and the driving assembly is used for driving the outer rings of the two slewing bearings 2 to rotate synchronously or individually;
[0032] The outer rings of the two slewing bearings 2 are provided with rotating discs 5 on the opposite surfaces respectively, the first heating plate 3 is installed on one side rotating disc 5, and the second heating plate 4 is installed on the other side rotating disc 5, and the first heating plate 3 and the second heating plate 4 are independently temperature-controlled;
[0033] The two welding opening end faces to be welded are respectively close to and not in contact with the first heating plate 3 and the second heating plate 4, and the first heating plate 3 and the second heating plate 4 can rotate relative to the two welding opening end faces and heat the two welding opening end faces.
[0034] Thus, the two welding end faces are non-contact heated by the rotatable first heating plate 3 and the second heating plate 4, the rotating heating mode makes the welding end faces evenly heated, the welding effect is better, the welding edge is more round, and in the face of the situation that the two welding end faces have different materials or sizes, the first heating plate 3 and the second heating plate 4 can independently control the temperature, meet the high-quality welding requirements, and have stronger applicability.
[0035] Optionally, the double-heat-plate rotating mechanism further comprises an electric slip ring 6 for transmitting electric energy to the first heating plate 3 and the second heating plate 4, the outer stator of the electric slip ring 6 is mounted on the mounting plate 1 and the inner ring of the two slewing bearings 2, the inner rotor of the electric slip ring 6 is mounted on the two rotating discs 5, and the inner rotor is electrically connected to the first heating plate 3 or the second heating plate 4.
[0036] The electric slip ring 6 can realize the function of electric conduction in the rotating structure, and in order to realize independent temperature control of the first heating plate 3 and the second heating plate 4, the inner rotor of the electric slip ring 6 is provided with two, and in general, the first heating plate 3 and the second heating plate 4 are set to the same temperature; when the welding end faces of different materials or wall thicknesses need to be heated, different temperature settings can be made for the first heating plate 3 and the second heating plate 4 to ensure reliable welding.
[0037] Optionally, the outer ring of the two slewing bearings 2 is respectively provided with an outer gear 7, the driving assembly comprises a transmission shaft 8 and a servo motor 9, the transmission shaft 8 is rotatably arranged on the mounting plate 1, and the two ends of the transmission shaft 8 are provided with transition gears 10 which are engaged with the outer gears 7 of the two slewing bearings 2 one by one, the servo motor 9 is fixed on the mounting plate 1, and the output shaft of the servo motor 9 is provided with a driving gear 11 which is engaged with any transition gear 10, so that the first heating plate 3 and the second heating plate 4 are driven by the servo motor 9 to realize the function of synchronous rotation (i.e. the structure shown in the figure), and the rotating speed can be infinitely adjusted. Figure 2
[0038] Alternatively, the driving assembly comprises two servo motors 9, the two servo motors 9 are respectively fixed on the mounting plate 1, each servo motor 9 is provided with a driving gear 11 on the output shaft, and the two driving gears 11 are engaged with the outer gears 7 of the two slewing bearings 2 one by one, so that the first heating plate 3 and the second heating plate 4 are driven by the two servo motors 9 to realize the function of independent rotation, and the rotating speed can be infinitely adjusted.
[0039] The rotatable function of the first heating plate 3 and the second heating plate 4 makes that even if the first heating plate 3 and the second heating plate 4 are not in parallel with the corresponding welding end face, each point of the welding end face can be evenly heated during rotation, so that the welding effect is better, the welding edge is more round, and the problem of uneven welding edge will not occur.
[0040] Optionally, a connecting plate 12 is arranged between the mounting plate 1 and any one of the slewing bearings 2, the inner ring of the corresponding slewing bearing 2 is indirectly fixed with the mounting plate 1 through the connecting plate 12, the connecting plate 12 is used to adjust the distance between the two slewing bearings 2, so that the distance between the first heating plate 3 and the second heating plate 4 is adjustable.
[0041] Therefore, on the one hand, especially in the case of synchronous rotation of the first heating plate 3 and the second heating plate 4, the accurate matching of the two transition gears 10 of the transmission shaft 8 and the outer gears 7 of the two slewing bearings 2 needs to be considered, and the size requirement of the connecting plate 12 can be reduced by adding the connecting plate 12; on the other hand, in the case of fixed position of the two welding end faces, the first heating plate 3 and the second heating plate 4 can be adjusted to maintain a suitable gap with the two welding end faces by adding the connecting plate 12.
[0042] Optionally, a transition plate 13 is arranged between the outer ring of the slewing bearing 2 and the rotating disc 5, by adding the transition plate 13, the gap between the rotating disc 5 and the slewing bearing 2 can be increased, the installation space of the electric slip ring 6 can be increased, and to some extent, the distance between the first heating plate 3 and the second heating plate 4 can also be adjusted.
[0043] Optionally, a heat shield 14 is arranged between the rotating disc 5 and the first heating plate 3 and between the rotating disc 5 and the second heating plate 4 respectively, the heat shield 14 is used to isolate the heat radiation of the first heating plate 3 and the second heating plate 4 to the rotating disc 5, the slewing bearing 2, the electric slip ring 6 and other components, and the service life of the components is improved.
[0044] Optionally, a nano coating is arranged on the surface of the first heating plate 3 and the surface of the second heating plate 4 respectively. The nano coating is powder-free, has good insulation and good heating uniformity, does not cause pollution to the welding end face at high temperature, does not cause deformation of the pipe opening when heating small size pipe fittings, and does not cause vertical fusion phenomenon.
[0045] Optionally, a protective cover 15 is arranged on both sides of the mounting plate 1, a heating port 16 is arranged on the protective cover 15, only the first heating plate 3 and the second heating plate 4 are exposed, the slewing bearing 2, the rotating disc 5 and other components are shielded, and the appearance of the double heating plate rotating mechanism is more simple.
[0046] Further, an independent cavity 17 for placing the first heating plate 3 and the second heating plate 4 is formed on the protective cover 15, the independent cavity 17 can form an independent heating space, and further blocks the heat radiation.
[0047] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.
Claims
1. Double hot plate rotating mechanism, characterized in that, The invention comprises a mounting plate (1), a slewing bearing (2), a first heating plate (3), a second heating plate (4) and a driving assembly, wherein: The two slewing bearings (2) are symmetrically distributed on both sides of the mounting plate (1), and the inner rings of the two slewing bearings (2) are respectively fixed to the mounting plate (1), and the outer rings of the two slewing bearings (2) are respectively connected to the driving assembly, and the driving assembly is used to drive the outer rings of the two slewing bearings (2) to rotate synchronously or independently; Rotating disks (5) are respectively provided on opposite sides of the outer rings of the two slewing bearings (2); the first heating plate (3) is mounted on the rotating disk (5) on one side, and the second heating plate (4) is mounted on the rotating disk (5) on the other side; the first heating plate (3) and the second heating plate (4) are independently temperature-controlled; The two weld end faces to be welded are respectively close to and do not contact the first heating plate (3) and the second heating plate (4); the first heating plate (3) and the second heating plate (4) are capable of rotating relative to the two weld end faces and heating the two weld end faces.
2. The double hot plate rotating mechanism according to claim 1, characterized in that: It also includes an electric slip ring (6) for transmitting electric energy to the first heating plate (3) and the second heating plate (4), wherein the outer stator of the electric slip ring (6) is mounted in the inner rings of the mounting plate (1) and the two slewing bearings (2), and the inner rotor of the electric slip ring (6) is mounted on the two rotating disks (5), and the inner rotor is electrically connected to the first heating plate (3) or the second heating plate (4) respectively.
3. The double hot plate rotating mechanism according to claim 1, characterized in that: The outer rings of the two slewing bearings (2) are respectively provided with external gears (7). The driving assembly includes a transmission shaft (8) and a servo motor (9). The transmission shaft (8) is rotatably provided on the mounting plate (1), and transition gears (10) are provided at both ends of the transmission shaft (8) and mesh with the external gears (7) of the two slewing bearings (2) in a one-to-one correspondence. The servo motor (9) is fixed on the mounting plate (1). A driving gear (11) is provided on the output shaft of the servo motor (9), and the driving gear (11) meshes with any one of the transition gears (10).
4. The double hot plate rotating mechanism according to claim 1, characterized in that: An external gear (7) is respectively provided on the outer rings of the two slewing bearings (2). The driving assembly includes two servo motors (9). The two servo motors (9) are respectively fixed on the mounting plate (1). A driving gear (11) is provided on the output shaft of each servo motor (9). The two driving gears (11) are meshed with the external gears (7) of the two slewing bearings (2) in a one-to-one correspondence.
5. The double hot plate rotating mechanism according to claim 1, characterized in that: A connecting plate (12) is further provided between the mounting plate (1) and any one of the slewing bearings (2); the inner ring of the corresponding slewing bearing (2) is indirectly fixed to the mounting plate (1) via the connecting plate (12); and the connecting plate (12) is used to adjust the distance between the two slewing bearings (2).
6. The double hot plate rotating mechanism according to claim 1, characterized in that: A transition plate (13) is provided between the outer ring of the slewing bearing (2) and the rotating plate (5).
7. The double hot plate rotating mechanism according to claim 1, characterized in that: A heat insulation cover (14) is provided between the rotating disk (5) and the first heating plate (3), and between the rotating disk (5) and the second heating plate (4), respectively.
8. The double hot plate rotating mechanism according to claim 1, characterized in that: The surface of the first heating plate (3) and the surface of the second heating plate (4) are respectively provided with a nano coating.
9. The double hot plate rotating mechanism according to claim 1, characterized in that: Shields (15) are respectively provided on both sides of the mounting plate (1), and heating ports (16) are provided on the shields (15) so as to expose only the first heating plate (3) and the second heating plate (4).
10. The double hot plate rotating mechanism according to claim 9, characterized in that: An independent cavity (17) for placing only the first heating plate (3) and the second heating plate (4) is formed on the protective cover (15).