CN218120389U - Plastic-aluminum pipe baking equipment - Google Patents

Abstract

The application relates to the field of aluminum-plastic pipe processing equipment, and particularly discloses aluminum-plastic pipe baking equipment which comprises a baking box body, wherein openings are formed in the feeding end and the discharging end of the baking box body, a fixing plate is fixed at the opening of the baking box body, a connecting plate is hinged to the fixing plate, and a supporting piece is mounted on the connecting plate; the fixed plate is perpendicular to the feeding direction of the aluminum-plastic pipe with the hinged shaft of the connecting plate, and a locking device used for fixing the position of the connecting plate is arranged on the fixed plate. This application has the effect that the aluminium-plastic composite pipe of messenger's not unidimensional placed the stoving between two parties.

Description

Plastic-aluminum pipe baking equipment

Technical Field

The application relates to the field of aluminum-plastic pipe processing equipment, in particular to aluminum-plastic pipe baking equipment.

Background

At present, the aluminum plastic pipe is widely applied to daily life of people due to light weight, durability, convenient construction and flexibility, and is commonly used for floor heating, gas pipes, water pipes and the like.

In the course of working at the plastic-aluminum pipe, need to toast the drying to the plastic-aluminum pipe, the baking equipment of plastic-aluminum pipe puts into the plastic-aluminum pipe sample to the baking oven through one side opening when toasting the plastic-aluminum pipe at present, and the plastic-aluminum pipe is followed the opposite side opening and is appeared the appearance after toasting the end.

In actual production, the inventors found that: when the plastic-aluminum pipe of different pipe diameters of processing, the central point of plastic-aluminum pipe puts and can change, leads to the plastic-aluminum pipe can not be accurately toasting the case toast passageway central point department of putting current for toasting the case inhomogeneous to the toasting of plastic-aluminum pipe, the plastic-aluminum pipe still can touch toasting the incasement wall toasting the in-process in serious time, causes the damage to plastic-aluminum pipe outward appearance.

SUMMERY OF THE UTILITY MODEL

In order to improve the difficult problem of placing in the middle in the passageway of toasting when toasting the plastic-aluminum pipe of different pipe diameters, this application provides a plastic-aluminum pipe toasts equipment.

The application provides a plastic-aluminum pipe toasts equipment adopts following technical scheme:

an aluminum-plastic pipe baking device comprises a baking box body, wherein openings are formed in the feeding end and the discharging end of the baking box body, a fixing plate is fixed at the opening of the baking box body, a connecting plate is hinged to the fixing plate, and a supporting piece is mounted on the connecting plate; the fixed plate is perpendicular to the feeding direction of the aluminum-plastic pipe through a hinge shaft of the connecting plate, and a locking device used for fixing the position of the connecting plate is arranged on the fixed plate.

Through adopting above-mentioned technical scheme, the user passes the stoving passageway of toasting the case body with the plastic-aluminum pipe when using this application to put on toasting case body feed end and two support piece of discharge end open-ended, swivelling joint board on the fixed plate, change contained angle between connecting plate and the fixed plate and to the plastic-aluminum pipe between two parties in toasting the passageway, rethread locking device is fixed in the fixed plate with the connecting plate on, the realization with not unidimensional plastic-aluminum pipe between two parties in the effect of toasting the passageway.

Optionally, a threaded hole is formed in the connecting plate, the locking device includes a bolt in threaded connection with the threaded hole, a chute adapted to a movement trajectory of the bolt when the connecting plate is turned over is formed in the fixing plate, and the bolt penetrates through the chute and is in threaded connection with the connecting plate.

Through adopting above-mentioned technical scheme, at the rotatory in-process of connecting plate on the fixed plate, the bolt slides in the spout, when the aluminium-plastic pipe is placed in the middle in toasting the passageway, the bolt of screwing is fixed in the fixed plate with the connecting plate on, realizes the effect with the connecting plate locking.

Optionally, the locking device further includes a co-acting mechanism for driving the connecting plates at the two openings to rotate at the same angle.

Through adopting above-mentioned technical scheme, the user makes the connecting plate of feed end opening part and the connecting plate of discharge end opening part around the same angle upset of articulated shaft through with moving mechanism when using this application for the support piece of feed end and the support piece of discharge end are in same height, realize the accurate effect placed in the middle of aluminium-plastic pipe toasting the passageway, have also improved the simple operation nature of adjusting aluminium-plastic pipe when placed in the middle.

Optionally, the synchronous mechanism comprises a bracket arranged on the upper end surface of the oven body, a left rotating shaft and a right rotating shaft are rotatably arranged on the bracket, and the distance from the left rotating shaft to the opening of the feeding end is equal to the distance from the right rotating shaft to the opening of the discharging end; two guide wheels are fixedly connected to the connecting plate; pull ropes are wound on the outer surfaces of the left rotating shaft and the right rotating shaft, one end of each pull rope is wound on the guide wheel and connected with the connecting plate, and the other end of each pull rope is connected with the left rotating shaft or the right rotating shaft; the left rotating shaft and the right rotating shaft are provided with a driving piece and a locking piece, wherein the driving piece is used for driving the left rotating shaft and the right rotating shaft to rotate at the same angle, and the locking piece is used for locking the left rotating shaft and the right rotating shaft.

Through adopting above-mentioned technical scheme, the user is when ordering about the connecting plate of two openings parts with the angle upset, make the same angular rotation of left turn axle and right turn axle simultaneously through the driving piece, the same distance is drawn up the connecting plate to winding stay cord around the leading wheel in left turn axle and the right turn axle, treat that the angle modulation between connecting plate and the fixed plate is suitable back, make left turn axle and right turn axle stall through the lock piece, and be fixed in the fixed plate with the connecting plate through locking means on, the angle fixation between connecting plate and the fixed plate this moment, the effect of angle between the connecting plate of two openings parts of synchronous regulation and the fixed plate has been realized.

Optionally, the driving part includes a left gear that is fixedly connected to the left rotating shaft and a right gear that is fixedly connected to the right rotating shaft, and the left gear is meshed with the right gear.

By adopting the technical scheme, when a user drives the left rotating shaft and the right rotating shaft to rotate, the left gear or the right gear is rotated to drive the right gear or the left gear meshed with the left rotating shaft to synchronously and reversely rotate, the left gear drives the left rotating shaft coaxially and fixedly connected with the left gear to synchronously rotate, and the right gear drives the right rotating shaft coaxially and fixedly connected with the right gear to synchronously rotate, so that the left rotating shaft and the right rotating shaft can synchronously rotate.

Optionally, the locking piece includes the rigid coupling and is in on the support and encircle the left-hand spindle or the main face gear that the right pivot set up, the left-hand spindle or on the right pivot with moving be connected with the vice face gear of main face gear adaptation, the left-hand spindle or be provided with in the right pivot and be used for ordering about vice face gear's tooth portion elasticity supports tightly elastic component in the main face gear tooth's socket.

By adopting the technical scheme, when a user locks the left rotating shaft and the right rotating shaft, the tooth part of the auxiliary end face gear elastically abuts against the tooth groove of the main end face gear through the elastic deformation force of the elastic part, so that the main end face gear and the auxiliary end face gear cannot rotate, the left rotating shaft and the right rotating shaft cannot rotate, and the locking effect on the left rotating shaft and the right rotating shaft is realized; when the locking needs to be released, the auxiliary end face gear is moved in the direction away from the main end face gear by applying a pulling force to the auxiliary end face gear, the tooth part of the auxiliary end face gear is separated from the tooth groove of the main end face gear, the main end face gear and the auxiliary end face gear recover the rotatable state, and then the left rotating shaft and the right rotating shaft are driven to rotate, so that the unlocking effect on the left rotating shaft and the right rotating shaft is achieved.

Optionally, a square hole is formed in one end, close to the auxiliary face gear, of the left rotating shaft or the right rotating shaft, a square shaft in plug fit with the square hole is fixedly connected to the auxiliary face gear, and the elastic part is fixedly connected between the bottom wall of the square hole and the end part of the square shaft; when the auxiliary end face gear abuts against the main end face gear, the elastic piece is in a stretched state.

Through adopting above-mentioned technical scheme, when the user made main face gear and vice face gear support tightly, the square shaft of rigid coupling on vice face gear just inserted in the square hole of left pivot or right pivot, the tensile deformation power of elastic component made the square shaft to be close to main face gear this moment, and then made the vice face gear with square shaft rigid coupling be close to main face gear, realized main face gear and the locking effect of vice face gear to left pivot and right pivot.

Optionally, a hand wheel is fixed in the middle of the left rotating shaft and/or the right rotating shaft.

Through adopting above-mentioned technical scheme, user's accessible rotates the hand wheel, drives left pivot and right pivot and rotates, realizes the effect of convenient rotation pivot.

Optionally, the support member includes a concave wheel rotatably disposed on the connecting plate.

Through adopting above-mentioned technical scheme, the user is when placing the aluminium-plastic pipe, and two rim plates of concave wheel exert the power of equidimension to the aluminium-plastic pipe for aluminium-plastic pipe is located between two parties and toasts in the passageway.

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

1. when the baking oven is used, a user penetrates the aluminum-plastic pipe through the baking channel of the baking oven body and places the aluminum-plastic pipe on the two supporting pieces with openings at the feeding end and the discharging end, the connecting plate is rotatably connected on the fixing plate to enable the aluminum-plastic pipe to be centered in the baking channel, and then the connecting plate is fixed on the fixing plate through the locking device, so that the effect of centering the aluminum-plastic pipes with different sizes in the baking channel is realized;

2. when a user fixes the connecting plate, the connecting plate can be fixed through the screw, or the left rotating shaft and the right rotating shaft are driven to rotate by rotating the left gear and the right gear, so that the stay ropes wound on the left rotating shaft and the right rotating shaft bypass the guide wheels to pull up the connecting plate, and then the square shaft is clamped into the square hole through the tensile deformation force of the elastic part, so that the auxiliary end face gear sleeved on the left rotating shaft or the right rotating shaft is tightly abutted against the main end face gear, the left rotating shaft and the right rotating shaft cannot rotate, and the effect of fixing the connecting plate is achieved;

3. when a user rotates the left gear or the right gear, the hand wheel fixedly connected to the left rotating shaft or the right rotating shaft is rotated, so that the left gear or the right gear can be conveniently rotated.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is a schematic view of the overall structure of embodiment 2 of the present application.

Fig. 4 is a schematic sectional view taken along line B-B in fig. 3.

Reference numerals: 1. a baking oven body; 11. an opening; 21. a fixing plate; 22. a connecting plate; 23. a support member; 24. a bolt; 25. a chute; 31. a support; 32. a left rotating shaft; 33. a right rotary shaft; 34. a guide wheel; 35. pulling a rope; 36. a left gear; 37. a right gear; 38. a hand wheel; 41. a main face gear; 42. a counter face gear; 43. an elastic member; 44. a square hole; 45. and (4) a square shaft.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Example 1:

the embodiment of the application discloses plastic-aluminum pipe baking equipment. Referring to fig. 1 and fig. 2, an aluminum plastic pipe baking device includes a baking box body 1, the baking box body 1 is provided with openings 11 with equal size and height at a feeding end and a discharging end, the baking box body 1 is fixed with fixing plates 21 at the openings 11 at both ends, each opening 11 is provided with two fixing plates 21, the fixing plates 21 are hinged with a connecting plate 22, the connecting plate 22 is provided with a supporting member 23, the supporting member 23 can be a guide roller fixedly connected between the two fixing plates 21 at the same side, or can be a concave wheel rotatably arranged between the two fixing plates 21 at the same side, in the embodiment of the application, the supporting member 23 is a concave wheel, and the concave wheel is arranged at one end of the connecting plate 22 far away from the baking box body 1; the hinge axis of the fixing plate 21 and the connecting plate 22 is perpendicular to the feeding direction of the aluminum-plastic pipe, and a locking device for fixing the position of the connecting plate 22 is arranged on the fixing plate 21.

When the device is specifically set, referring to fig. 2, a threaded hole is formed in the connecting plate 22, the locking device comprises a bolt 24 in threaded connection with the threaded hole, a large end of the bolt 24 is located on one side, away from the fixing plate 21, of the connecting plate 22, a sliding groove 25 matched with the movement track of the bolt 24 when the connecting plate 22 is turned is formed in the fixing plate 21, the bolt 24 can freely slide in the sliding groove 25, and the bolt 24 penetrates through the sliding groove 25 and is in threaded connection with the connecting plate 22.

The user is when using this application, through two sizes and the highly uniform opening 11 that are located and toast 1 feed end of case body and discharge end, with the baking channel that toasts 1 case body is passed to the aluminium-plastic pipe and place on the concave wheel, the rethread sliding bolt 24 in spout 25 for connecting plate 22 overturns on fixed plate 21, and the contained angle between connecting plate 22 and the fixed plate 21 changes, and then makes the height of the concave wheel of feed end and discharge end change thereupon. When the height of the concave wheel is changed to the aluminum-plastic pipe to be placed in the baking channel in the middle, the bolt 24 is screwed to enable the connecting plate 22 not to be turned over continuously, the connecting plate 22 is fixed on the fixing plate 21 through the screwed bolt 24, the included angle between the connecting plate 22 and the fixing plate 21 is kept unchanged, the height of the concave wheel at the feeding end and the height of the concave wheel at the discharging end are also fixed accordingly, and the effect of placing aluminum-plastic pipes in the middle in different sizes in the baking process of the aluminum-plastic pipe is achieved.

The implementation principle of an aluminium-plastic pipe baking equipment of the embodiment of the application is: the user is when using this application, opening 11 through feed end and discharge end passes the stoving passageway of baking out case body 1 with the aluminium-plastic pipe, and place on the concave wheel, the rethread is slide bolt 24 in spout 25 changes the height of aluminium-plastic pipe with this upset connecting plate 22, treat aluminium-plastic pipe altitude mixture control to toast the passageway center when, be fixed in fixed plate 21 with connecting plate 22 on through the bolt 24 of screwing, realize the fixed of the height of the concave wheel of feed end and discharge end, and then realize with not unidimensional aluminium-plastic pipe between two parties in toasting the passageway.

Example 2:

the embodiment of the application discloses plastic-aluminum pipe toasts equipment. Referring to fig. 3 and 4, the difference from embodiment 1 is that: toast and still be provided with the same moving mechanism that is used for driving about two connecting plates 22 of two openings 11 departments with the angle upset on the case body 1, including setting up in the support 31 of toasting 1 up end of case body, rotate on the support 31 and be provided with left pivot 32 and right pivot 33, the distance that left pivot 32 apart from feed end opening 11 equals with the distance that right pivot 33 apart from discharge end opening 11. Connecting plate 22 and toast 1 up end rigid coupling of case body and have two leading wheels 34, and the winding has stay cord 35 on axle 32 and the 33 surfaces of right turn axle, and stay cord 35 can be rope made of hemp, nylon rope and wire rope, and in this embodiment, stay cord 35 is one end around locating on leading wheel 34 and be connected, the other end is connected and be fixed in the nylon rope on axle 32 or the axle 33 of turning right.

Referring to fig. 3, driving parts for driving the left rotating shaft 32 and the right rotating shaft 33 to rotate in the same angle and in opposite directions are arranged on the left rotating shaft 32 and the right rotating shaft 33, the driving parts include a left gear 36 coaxially and fixedly connected with the left rotating shaft 32 and a right gear 37 coaxially and fixedly connected with the right rotating shaft 33, the left gear 36 and the right gear 37 are in meshed connection, a hand wheel 38 is fixed in the middle of the left rotating shaft 32 and/or the right rotating shaft 33, when the hand wheel 38 is rotated, the left rotating shaft 32 and the right rotating shaft 33 synchronously rotate in opposite directions, and specifically, the hand wheel 38 is installed on the right rotating shaft 33.

The user makes vice face gear 42 remove to the direction of keeping away from main face gear 41 when the height of the concave wheel of synchronous adjustment toast case body 1 feed end and discharge end, and main face gear 41 and vice face gear 42 disengage, realize the holistic unblock effect of left pivot 32 and right pivot 33. Rethread rotates hand wheel 38 and drives right pivot 33 and rotate, and then drives right gear 37 and rotate in step for left pivot 32 rotates thereupon, and the stay cord 35 length change of winding on left pivot 32 and right pivot 33 drives the synchronous upset of connecting plate 22 of toasting case body 1 feed end and discharge end, reaches the effect of the height of the concave wheel of synchronous regulation toasting case body 1 feed end and discharge end.

In order to fix the connection plates 22 on the two sides, referring to fig. 3, locking members for locking the left rotating shaft 32 and the right rotating shaft 33 are further arranged on the left rotating shaft 32 and the right rotating shaft 33, each locking member includes a main end face gear 41 fixedly connected to the bracket 31 and arranged around the left rotating shaft 32 or the right rotating shaft 33, an auxiliary end face gear 42 matched with the main end face gear 41 is synchronously connected to the left rotating shaft 32 or the right rotating shaft 33, and the main end face gear 41 and the auxiliary end face gear 42 are connected to the same left rotating shaft 32 or the same right rotating shaft 33.

Referring to fig. 4, a square hole 44 is formed at one end of the left rotating shaft 32 or the right rotating shaft 33 close to the auxiliary face gear 42, and a square shaft 45 in splicing fit with the square hole 44 is fixedly connected to the auxiliary face gear 42; the left rotating shaft 32 or the right rotating shaft 33 is provided with an elastic member 43 for driving the tooth portion of the secondary face gear 42 to elastically abut against the tooth groove of the primary face gear 41, and is fixedly connected between the bottom wall of the square hole 44 and the end portion of the square shaft 45, the elastic member 43 may be a rubber band, a spring, a tension spring, etc., in this embodiment, the elastic member 43 is a tension spring with one end fixedly connected with the bottom wall of the square hole 44 and the other end fixedly connected with the end portion of the square shaft 45, and when the secondary face gear 42 abuts against the primary face gear 41, the elastic member 43 is in a stretched state.

When the connection plates 22 on both sides need to be fixed simultaneously, the auxiliary face gear 42 is moved in a direction close to the main face gear 41 by applying pressure to the auxiliary face gear 42, so that the tooth part of the auxiliary face gear 42 is clamped into the tooth slot of the main face gear 41, at this time, the square shaft 45 fixedly connected to the auxiliary face gear 42 is just inserted into the square hole 44 of the left rotating shaft 32 or the right rotating shaft 33, and the elastic member 43 fixedly connected between the bottom wall of the square hole 44 and the end part of the square shaft 45 is still in a stretching state, the stretching deformation force of the elastic member 43 drives the square shaft 45 to approach the main face gear 41, so that the auxiliary face gear 42 fixedly connected to the square shaft 45 approaches the main face gear 41, the main face gear 41 and the auxiliary face gear 42 are tightly abutted, the main face gear 41 and the auxiliary face gear 42 cannot rotate, the left rotating shaft 32 and the right rotating shaft 33 cannot rotate, the length of the pull rope 35 is kept unchanged, and the synchronous fixation of the heights of the concave wheels at the feeding end and the discharging end of the baking box body 1 is realized.

Considering that the unreeling lengths of the two pull ropes 35 may be inconsistent when the two pull ropes 35 are unreeled, in another embodiment, a counterweight is fixedly connected to one end of the connecting plate 22 away from the baking oven body 1, so as to eliminate an adjustment error of the vertical heights of the two concave wheels when the pull ropes 35 are not tightened; or the elastic member 43 is connected between the connecting plate 22 and the oven body 1, the above effects can be achieved.

When unreeling the pull rope 35, the user, owing to there being the balancing weight, the pull rope 35 receives the pulling force of directional connecting plate 22 for the pull rope 35 unreels the process and is in the same direction as smooth, realizes that the pull rope 35 unreels the unanimous effect of length.

The implementation principle of an aluminium-plastic pipe baking equipment of the embodiment of the application is: when a user uses the baking oven, the auxiliary end face gear 42 is moved in a direction far away from the main end face gear 41 by applying a pulling force to the auxiliary end face gear 42, so that the left rotating shaft 32 and the right rotating shaft 33 are driven to rotate, and then the right rotating shaft 33 is driven to rotate by rotating the hand wheel 38, so that the lengths of the pull ropes 35 wound on the left rotating shaft 32 and the right rotating shaft 33 are changed, and the connecting plates 22 at the feeding end and the discharging end of the baking oven body 1 are driven to synchronously turn over;

when the height of the aluminum plastic pipes is adjusted to the center of the baking channel, the auxiliary face gear 42 moves towards the direction close to the main face gear 41 by applying pressure to the auxiliary face gear 42, at the moment, the square shaft 45 fixedly connected to the auxiliary face gear 42 is just inserted into the square hole 44 of the left rotating shaft 32 or the right rotating shaft 33, at the moment, the stretching deformation force of the elastic part 43 drives the square shaft 45 to approach the main face gear 41, the main face gear 41 is tightly abutted against the auxiliary face gear 42 and cannot rotate, at the moment, the length of the stay cord 35 is kept unchanged, the connecting plates 22 at the feeding end and the discharging end of the baking box body 1 stop overturning at the same time, and the aluminum plastic pipes with different sizes are centered in the baking channel.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides an aluminium-plastic composite pipe toasts equipment, includes toasts case body (1), toast case body (1) and all be equipped with opening (11), its characterized in that in feed end and discharge end: a fixing plate (21) is fixed at the opening (11) of the baking box body (1), a connecting plate (22) is hinged to the fixing plate (21), and a supporting piece (23) for supporting an aluminum plastic pipe is installed on the connecting plate (22);

the articulated shaft of fixed plate (21) with connecting plate (22) is perpendicular with plastic-aluminum pipe feeding direction, be equipped with on fixed plate (21) and be used for with connecting plate (22) fixed locking means in position.

2. The aluminum-plastic pipe baking equipment as claimed in claim 1, wherein: the locking device comprises a bolt (24) in threaded connection with the threaded hole, a sliding groove (25) matched with the movement track of the bolt (24) when the connecting plate (22) is turned is formed in the fixing plate (21), and the bolt (24) penetrates through the sliding groove (25) and is in threaded connection with the connecting plate (22).

3. The aluminum-plastic pipe baking equipment of claim 1, wherein: the device also comprises a same-action mechanism for driving the two connecting plates (22) at the two openings (11) to turn over at the same angle.

4. The aluminum-plastic pipe baking equipment of claim 3, wherein: the synchronous mechanism comprises a bracket (31) arranged on the upper end surface of the baking oven body (1), a left rotating shaft (32) and a right rotating shaft (33) are rotatably arranged on the bracket (31), and the distance from the left rotating shaft (32) to the opening (11) of the feeding end is equal to the distance from the right rotating shaft (33) to the opening (11) of the discharging end;

a guide wheel (34) is fixedly connected to the connecting plate (22); pull ropes (35) are wound on the outer surfaces of the left rotating shaft (32) and the right rotating shaft (33), one end of each pull rope (35) is wound on the guide wheel (34) and connected with the connecting plate (22), and the other end of each pull rope is connected with the left rotating shaft (32) or the right rotating shaft (33);

the left rotating shaft (32) and the right rotating shaft (33) are provided with a driving piece and a locking piece, wherein the driving piece is used for driving the left rotating shaft (32) and the right rotating shaft (33) to rotate at the same angle, and the locking piece is used for locking the left rotating shaft (32) and the right rotating shaft (33).

5. The aluminum-plastic pipe baking equipment of claim 4, wherein: the driving piece comprises a left gear (36) and a right gear (37), the left gear (36) is fixedly connected with the left rotating shaft (32) in a coaxial mode, the right gear (37) is fixedly connected with the right rotating shaft (33) in a coaxial mode, and the left gear (36) is connected with the right gear (37) in a meshed mode.

6. The aluminum-plastic pipe baking equipment as claimed in claim 4, wherein: the locking piece includes the rigid coupling is in on support (31) and encircle left side pivot (32) or main face gear (41) that right side pivot (33) set up, left side pivot (32) or go up with the movable connection in right side pivot (33) have with vice face gear (42) of main face gear (41) adaptation, left side pivot (32) or be provided with on right side pivot (33) and be used for ordering about the tooth portion elasticity of vice face gear (42) supports tightly elastic component (43) in main face gear (41) tooth's socket.

7. The aluminum-plastic pipe baking equipment of claim 6, wherein: a square hole (44) is formed in one end, close to the auxiliary face gear (42), of the left rotating shaft (32) or the right rotating shaft (33), a square shaft (45) in plug-in fit with the square hole (44) is fixedly connected to the auxiliary face gear (42), and the elastic piece (43) is fixedly connected between the bottom wall of the square hole (44) and the end portion of the square shaft (45); when the auxiliary face gear (42) is abutted against the main face gear (41), the elastic piece (43) is in a stretched state.

8. The plastic-aluminum pipe baking equipment as claimed in any one of claims 4 to 7, wherein: and a hand wheel (38) is fixed in the middle of the left rotating shaft (32) and/or the right rotating shaft (33).

9. The aluminum-plastic pipe baking apparatus of any one of claims 1 to 7, wherein: the support (23) is provided as a concave wheel rotatably arranged on the connecting plate (22).

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