阅读说明：本技术 一种聚乙烯管加工用加热折弯设备 (Heating and bending equipment for processing polyethylene pipe ) 是由 高小芬 于 2021-08-05 设计创作，主要内容包括：本发明涉及一种加热折弯设备,尤其涉及一种聚乙烯管加工用加热折弯设备。技术问题：提供一种省时省力并且安全性较高的聚乙烯管加工用加热折弯设备。本发明提供了这样一种聚乙烯管加工用加热折弯设备,包括有底座和固定架,底座对称安装在固定架底部两侧；平移机构,平移机构安装在固定架内侧下部。本发明的加热板能够对聚乙烯管进行加热软化,当聚乙烯管加热完成后,通过第一电动推杆作为驱动力,带动第一滑动架往右运动,当第一导套与第一顶杆接触时,能够通过连杆带动加热板往外侧运动松开聚乙烯管,然后通过第二电动推杆作为驱动力,带动齿轮逆时针转动,从而带动滚轮逆时针转动将聚乙烯管折弯,省时省力。(The invention relates to heating bending equipment, in particular to heating bending equipment for processing a polyethylene pipe. The technical problem is as follows: the heating bending equipment for processing the polyethylene pipe is time-saving, labor-saving and high in safety. The invention provides heating bending equipment for processing a polyethylene pipe, which comprises a base and a fixed frame, wherein the base is symmetrically arranged on two sides of the bottom of the fixed frame; the translation mechanism is arranged at the lower part of the inner side of the fixed frame. The heating plate can heat and soften a polyethylene pipe, when the polyethylene pipe is heated, the first sliding frame is driven to move rightwards by taking the first electric push rod as driving force, when the first guide sleeve is contacted with the first ejector rod, the heating plate can be driven to move outwards by the connecting rod to loosen the polyethylene pipe, then the second electric push rod is used as driving force to drive the gear to rotate anticlockwise, and therefore the roller is driven to rotate anticlockwise to bend the polyethylene pipe, and time and labor are saved.)

1. The utility model provides a processing of polyethylene pipe is with equipment of bending of heating which characterized in that, including:

the base (1) is symmetrically arranged at two sides of the bottom of the fixing frame (2);

the translation mechanism (5), the translation mechanism (5) is installed on the lower part of the inner side of the fixed frame (2);

the bending mechanism (6), the bending mechanism (6) is installed on the translation mechanism (5);

the heating mechanism (7), the heating mechanism (7) is installed in the middle of the inner side of the fixed frame (2);

the heating plates (4), and the two heating plates (4) are both arranged on the heating mechanism (7);

the opening mechanism (8), the opening mechanism (8) is installed on the inner side of the fixed frame (2).

2. The heating and bending device for processing the polyethylene pipe as claimed in claim 1, wherein the translation mechanism (5) comprises:

the guide rail (51), the guide rail (51) is installed in the middle of the bottom in the fixed frame (2);

the first mounting racks (52), the first mounting racks (52) are symmetrically mounted on one side of the bottom in the fixing rack (2);

the first electric push rod (53), the first electric push rod (53) is installed on the inner side of the top of the first mounting frame (52);

the second electric push rod (54), the second electric push rod (54) is installed on the outer side of the top of the first mounting frame (52);

the first sliding frame (55), the first sliding frame (55) is installed between one sides of telescopic rods of the first electric push rods (53), and the first sliding frame (55) slides on the guide rail (51);

and the second sliding frame (56), the second sliding frame (56) is arranged between the telescopic rod sides of the second electric push rods (54), the second sliding frame (56) slides on the guide rail (51), and the second sliding frame (56) is positioned on the first sliding frame (55) side.

3. The heating and bending device for processing the polyethylene pipe as claimed in claim 2, wherein the bending mechanism (6) comprises:

the third sliding frame (61), the third sliding frame (61) is symmetrically and slidably arranged on one side of the upper part of the second sliding frame (56);

the second mounting rack (63), the second mounting rack (63) is rotatably mounted between the inner sides of the third sliding racks (61);

the rollers (62), the rollers (62) are arranged on the upper side and the lower side of the second mounting rack (63);

a first spring (64), the first spring (64) being mounted between the third carriage (61) and the second carriage (56);

the gears (65), the gears (65) are symmetrically arranged at the lower part of the second mounting rack (63);

and the racks (66), the racks (66) are symmetrically arranged at the lower part of the second sliding frame (56), and the racks (66) are matched with the gear (65).

4. The heating and bending device for processing the polyethylene pipe as claimed in claim 3, wherein the heating mechanism (7) comprises:

a third mounting rack (71), wherein the third mounting rack (71) is mounted at the top of the first sliding rack (55);

the sliding rods (72) are symmetrically and slidably mounted at the lower part of the third mounting frame (71), and the inner sides of the sliding rods (72) are connected with the heating plate (4);

the distance sensor (73), the distance sensor (73) is installed on the upper part of one side of the third mounting frame (71);

and the temperature sensor (74) is arranged in the middle of the upper part of one side of the third mounting frame (71).

5. The heating and bending device for processing the polyethylene pipe as claimed in claim 4, wherein the expanding mechanism (8) comprises:

the guide rods (83), the guide rods (83) are respectively arranged in the middle of the top in the third mounting rack (71) and in the middle of the lower part of the first sliding rack (55);

the first guide sleeve (82), the first guide sleeve (82) is installed between one sides of the guide rods (83) in a sliding mode;

the second spring (84) is wound on the guide rod (83), one end of each second spring (84) is connected with the first guide sleeve (82), and the other end of each second spring (84) is connected with the third mounting frame (71) and the first sliding frame (55) respectively;

the connecting rod (81), the connecting rod (81) is installed between the first guide sleeve (82) and the sliding rod (72) in a rotating mode;

the stop lever (85), the stop lever (85) is installed on the outside lower part of the sliding rod (72);

the clamping rod (86), the clamping rod (86) is installed on the upper portion of the outer side of the third sliding frame (61), and the clamping rod (86) is matched with the stop lever (85);

the second guide sleeve (87), the second guide sleeve (87) is arranged on one side of the top of the guide rail (51);

the first ejector rod (88), the first ejector rod (88) is installed on one side of the second guide sleeve (87) in a sliding mode, and the first ejector rod (88) is matched with the first guide sleeve (82);

and the third spring (89) is arranged between the first ejector rod (88) and the second guide sleeve (87).

6. The heating and bending device for processing the polyethylene pipe according to claim 5, further comprising a cooling mechanism (9), wherein the cooling mechanism (9) comprises:

the air inlet pipe (91), the air inlet pipe (91) is installed in the middle of one side of the fixing frame (2);

the fixed seat (92), the fixed seat (92) is installed on the inner side of the air inlet pipe (91);

the fan (93), the fan (93) is installed on one side of the fixed seat (92);

the air guide pipe (94), the air guide pipe (94) is arranged in the middle of one side of the fixed frame (2) far away from the air inlet pipe (91); and the wind deflectors (95) are uniformly arranged on the inner side of the air guide pipe (94) at intervals.

7. The heating and bending device for processing the polyethylene pipe according to claim 6, further comprising a clamping mechanism (10), wherein the clamping mechanism (10) comprises:

the third guide sleeve (1001), the third guide sleeve (1001) is installed on both sides of the second guide sleeve (87);

the second ejector rod (1002), the second ejector rod (1002) is installed in the third guide sleeve (1001) in a sliding mode, one side of the second ejector rod (1002) is connected with the first ejector rod (88);

the fourth mounting rack (1003), the fourth mounting rack (1003) is mounted on one side of the second guide sleeve (87);

the clamping rods (1004) are symmetrically and slidably arranged on one side of the fourth mounting rack (1003);

the fourth spring (1005), the fourth spring (1005) is installed between outside of the clamping bar (1004) and the fourth mounting rack (1003);

the limiting frame (1006), the limiting frame (1006) is symmetrically and slidably mounted on one side of the fourth mounting frame (1003), the limiting frame (1006) is slidably connected with the second guide sleeve (87), the limiting frame (1006) is matched with the second ejector rod (1002), and the limiting frame (1006) is matched with the clamping rod (1004);

and the fifth spring (1007), and the fifth spring (1007) is arranged between the limiting frame (1006) and the second guide sleeve (87).

8. The heating and bending device for processing the polyethylene pipe according to claim 7, further comprising a control box (3) and an LCD display screen (75), wherein the control box (3) is arranged on one side of the top of the fixing frame (2), the LCD display screen (75) is arranged on one side of the top of the control box (3), a switching power supply, a control module and a power module are arranged in the control box (3), the switching power supply supplies power to the whole heating and bending device, the power module is connected with a main power switch through a circuit, the control module is electrically connected with the power module, the control module is connected with a DS1302 clock circuit and a 24C02 circuit, the distance sensor (73), the temperature sensor (74) and the LCD display screen (75) are electrically connected with the control module, and the first electric push rod (53), the second electric push rod (54), the heating plate (4) and the fan (93) are connected with the control module through a peripheral circuit.

Technical Field

The invention relates to heating bending equipment, in particular to heating bending equipment for processing a polyethylene pipe.

Background

The polyethylene pipe is a common pipe in our lives, and when the polyethylene pipe is used, the polyethylene pipe can meet the places needing turning, so that the polyethylene pipe needs to be processed and bent manually.

At present, the position that need bend to the polyethylene pipe by the manual work with the heater heats the softening, bend it again, after bending, need wait for the polyethylene pipe to cool off the shaping, in these operation processes, people are scalded very likely, the security is not high, manual operation's step is more moreover, when the polyethylene pipe quantity that needs processing is more, can consume more time and energy, lead to work efficiency not high, to the above-mentioned problem, a labour saving and time saving and the higher heating equipment of bending for polyethylene pipe processing of security has been designed.

Disclosure of Invention

In order to overcome the manual work and heat the operating procedure of bending to the polyethylene pipe more, lead to work efficiency not high, easily by the shortcoming of scald moreover, technical problem: the heating bending equipment for processing the polyethylene pipe is time-saving, labor-saving and high in safety.

The technical scheme is as follows: the utility model provides a processing of polyethylene pipe is with heating equipment of bending, including:

the base is symmetrically arranged at two sides of the bottom of the fixing frame;

the translation mechanism is arranged at the lower part of the inner side of the fixed frame;

the bending mechanism is arranged on the translation mechanism;

the heating mechanism is arranged in the middle of the inner side of the fixing frame;

the heating plates are arranged on the heating mechanism;

the opening mechanism is arranged on the inner side of the fixing frame.

Preferably, the translation mechanism comprises:

the guide rail is arranged in the middle of the bottom in the fixed frame;

the first mounting frames are symmetrically arranged on one side of the bottom in the fixing frame;

the first electric push rod is arranged on the inner side of the top of the first mounting frame;

the second electric push rod is arranged on the outer side of the top of the first mounting frame;

the first sliding frame is arranged between one sides of the telescopic rods of the first electric push rods and slides on the guide rails;

and the second sliding frame is arranged between one sides of the telescopic rods of the second electric push rod, slides on the guide rail and is positioned on one side of the first sliding frame.

Preferably, the bending mechanism includes:

the third sliding frame is symmetrically and slidably arranged on one side of the upper part of the second sliding frame;

the second mounting rack is rotatably arranged between the inner sides of the third sliding racks;

the rollers are arranged on the upper side and the lower side of the second mounting rack;

the first spring is arranged between the third sliding frame and the second sliding frame;

the gears are symmetrically arranged at the lower part of the second mounting rack;

and the racks are symmetrically arranged on the lower part of the second sliding frame and are matched with the gear.

Preferably, the heating means includes:

the third mounting rack is arranged at the top of the first sliding rack;

the sliding rods are symmetrically and slidably mounted at the lower part of the third mounting rack, and the inner sides of the sliding rods are connected with the heating plate;

the distance sensor is arranged on the upper part of one side of the third mounting rack;

and the temperature sensor is arranged in the middle of the upper part of one side of the third mounting frame.

Preferably, the expanding mechanism comprises:

the guide rods are respectively arranged in the middle of the top in the third mounting frame and in the middle of the lower part of the first sliding frame;

the first guide sleeve is arranged between one sides of the guide rods in a sliding manner;

the second spring is wound on the guide rod, one end of the second spring is connected with the first guide sleeve, and the other end of the second spring is connected with the third mounting frame and the first sliding frame respectively;

the connecting rod is rotatably arranged between the first guide sleeve and the sliding rod;

the stop lever is arranged at the lower part of the outer side of the sliding rod;

the clamping rod is arranged at the upper part of the outer side of the third sliding frame and is matched with the stop lever;

the second guide sleeve is arranged on one side of the top of the guide rail;

the first ejector rod is arranged on one side of the second guide sleeve in a sliding mode and matched with the first guide sleeve;

and the third spring is arranged between the first ejector rod and the second guide sleeve.

Preferably, the cooling device further comprises a cooling mechanism, wherein the cooling mechanism comprises:

the air inlet pipe is arranged in the middle of one side of the fixing frame;

the fixed seat is arranged on the inner side of the air inlet pipe;

the fan is arranged on one side of the fixed seat;

the air guide pipe is arranged in the middle of one side of the fixed frame, which is far away from the air inlet pipe;

the wind shields are uniformly installed on the inner sides of the air guide pipes at intervals.

Preferably, the clamping device further comprises a clamping mechanism, and the clamping mechanism comprises:

the third guide sleeves are arranged on two sides of the second guide sleeve;

the second ejector rod is arranged in the third guide sleeve in a sliding mode, and one side of the second ejector rod is connected with the first ejector rod;

the fourth mounting rack is mounted on one side of the second guide sleeve;

the clamping rods are symmetrically and slidably arranged on one side of the fourth mounting frame;

the fourth spring is arranged between the outer side of the clamping rod and the fourth mounting frame;

the limiting frames are symmetrically and slidably mounted on one side of the fourth mounting frame, are slidably connected with the second guide sleeve, are matched with the second ejector rod and are matched with the clamping rod;

and the fifth spring is arranged between the limiting frame and the second guide sleeve.

As preferred, still including control box and LCD display screen, mount top one side is equipped with the control box, control box top one side is equipped with the LCD display screen, including switching power supply in the control box, control module and power module, switching power supply is whole heating equipment power supply of bending, there is the power master switch power module last through the line connection, control module and power module pass through electric connection, last DS1302 clock circuit and the 24C02 circuit of being connected with of control module, distance sensor, temperature sensor and LCD display screen all pass through electric connection with control module, first electric putter, second electric putter, hot plate and fan all pass through peripheral circuit with control module and are connected.

Compared with the prior art, the invention has the following advantages:

1. the heating plate can heat and soften a polyethylene pipe, when the polyethylene pipe is heated, the first sliding frame is driven to move rightwards by taking the first electric push rod as driving force, when the first guide sleeve is contacted with the first ejector rod, the heating plate can be driven to move outwards by the connecting rod to loosen the polyethylene pipe, then the second electric push rod is used as driving force to drive the gear to rotate anticlockwise, and therefore the roller is driven to rotate anticlockwise to bend the polyethylene pipe, and time and labor are saved.

2. According to the invention, through the action of the fan, the polyethylene pipe can be cooled and molded after being bent by the roller, and people can be prevented from being scalded by blown hot air under the action of the wind shield, so that the safety is higher.

3. When the first ejector rod moves rightwards, the clamping rod can be driven to move inwards to slightly clamp the right side of the polyethylene pipe, and the polyethylene pipe is prevented from tilting when being bent.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a schematic view of a first partial body structure according to the present invention.

FIG. 3 is a schematic view of a second partial body structure according to the present invention.

Fig. 4 is a schematic perspective view of the translation mechanism of the present invention.

Fig. 5 is a partial perspective view of the translation mechanism of the present invention.

Fig. 6 is a schematic perspective view of the translation mechanism and the bending mechanism of the present invention.

Fig. 7 is a schematic perspective view of a portion of the bending mechanism of the present invention.

Fig. 8 is a schematic perspective view of the heating mechanism of the present invention.

Fig. 9 is a schematic partial perspective view of the heating mechanism of the present invention.

Fig. 10 is a perspective view of the distracting mechanism of the present invention.

Fig. 11 is a partial perspective view of the distracting mechanism of the present invention.

Fig. 12 is a perspective view of the cooling mechanism of the present invention.

Fig. 13 is a partial perspective view of the cooling mechanism of the present invention.

Fig. 14 is a perspective view of the clamping mechanism of the present invention.

Fig. 15 is a schematic perspective view of a portion of the clamping mechanism of the present invention.

Fig. 16 is a schematic circuit diagram of the present invention.

Fig. 17 is a circuit block diagram of the present invention.

Description of reference numerals: 1: base, 2: mount, 3: control box, 4: heating plate, 5: translation mechanism, 51: guide rail, 52: first mounting bracket, 53: first electric push rod, 54: second electric putter, 55: first carriage, 56: second carriage, 6: bending mechanism, 61: third carriage, 62: roller, 63: second mounting bracket, 64: first spring, 65: gear, 66: rack, 7: heating means, 71: third mount, 72: slide bar, 73: distance sensor, 74: temperature sensor, 75: LCD display screen, 8: distraction mechanism, 81: connecting rod, 82: first guide bush, 83: guide bar, 84: second spring, 85: stop lever, 86: jamming rod, 87: second guide bush, 88: first ejector pin, 89: third spring, 9: cooling mechanism, 91: air inlet pipe, 92: fixing base, 93: fan, 94: air guide duct, 95: wind deflector, 10: clamping mechanism, 1001: third guide bush, 1002: second ejector pin, 1003: fourth mount, 1004: clamping bar, 1005: fourth spring, 1006: spacing frame, 1007: and a fifth spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The utility model provides a polyethylene pipe processing is with heating equipment of bending, as shown in fig. 1-11, including base 1, mount 2, hot plate 4, translation mechanism 5, mechanism 6 of bending, heating mechanism 7 and distraction mechanism 8, the equal front and back symmetry in 2 bottom left and right sides of mount is equipped with base 1, 2 inboard lower parts of mount are equipped with translation mechanism 5, be equipped with mechanism 6 of bending on translation mechanism 5, 2 inboard middle parts of mount are equipped with heating mechanism 7, be equipped with two hot plates 4 on the heating mechanism 7, 2 inboard right parts of mount are equipped with distraction mechanism 8.

Translation mechanism 5 is including guide rail 51, first mounting bracket 52, first electric putter 53, second electric putter 54, first carriage 55 and second carriage 56, be equipped with guide rail 51 in the middle of the bottom in mount 2, bottom left side front and back symmetry is equipped with first mounting bracket 52 in mount 2, first mounting bracket 52 top inboard all is equipped with first electric putter 53, first mounting bracket 52 top outside all is equipped with second electric putter 54, be equipped with first carriage 55 between first electric putter 53's the telescopic link right side, first carriage 55 slides on guide rail 51, be equipped with second carriage 56 between second electric putter 54's the telescopic link right side, second carriage 56 slides on guide rail 51, second carriage 56 is located first carriage 55 left sides.

Bending mechanism 6 is including third carriage 61, gyro wheel 62, second mounting bracket 63, first spring 64, gear 65 and rack 66, the slidingtype is equipped with third carriage 61 around second carriage 56 upper portion right side, the rotary type is equipped with second mounting bracket 63 between the third carriage 61 inboard, both sides all are equipped with gyro wheel 62 about second mounting bracket 63, all be equipped with first spring 64 between third carriage 61 left side lower part and the second carriage 56, the symmetry is equipped with gear 65 around second mounting bracket 63 lower part, the symmetry is equipped with rack 66 around second carriage 56 lower part, rack 66 and gear 65 cooperation.

Heating mechanism 7 is including third mounting bracket 71, slide bar 72, distance sensor 73 and temperature sensor 74, and first carriage 55 top is equipped with third mounting bracket 71, and the symmetry slidingtype is equipped with slide bar 72 around third mounting bracket 71 lower part, and the slide bar 72 inboard all is connected with hot plate 4, and third mounting bracket 71 right front side upper portion is equipped with distance sensor 73, is equipped with temperature sensor 74 in the middle of the left side upper portion of third mounting bracket 71.

The opening mechanism 8 comprises a connecting rod 81, a first guide sleeve 82, a guide rod 83, a second spring 84, a stop rod 85, a clamping rod 86, a second guide sleeve 87, a first ejector rod 88 and a third spring 89, the middle of the top in the third mounting frame 71 and the middle of the lower part of the first sliding frame 55 are respectively provided with the guide rod 83, the first guide sleeve 82 is arranged between the right sides of the guide rods 83 in a sliding manner, the second spring 84 is wound on the guide rod 83, the right end of the second spring 84 is connected with the first guide sleeve 82, the left end of the second spring 84 is respectively connected with the third mounting frame 71 and the first sliding frame 55, the connecting rod 81 is arranged between the first guide sleeve 82 and the sliding rod 72 in a rotating manner, the lower part of the outer side of the sliding rod 72 is provided with the stop rod 85, the upper part of the outer side of the third sliding frame 61 is provided with the clamping rod 86, the clamping rod 86 is matched with the stop rod 85, the right side of the top of the guide rail 51 is provided with the second guide sleeve 87, the left side of the second guide sleeve 87 is provided with the first ejector rod 88 in a sliding manner, the first ejector rod 88 is matched with the first guide sleeve 82, and a third spring 89 is arranged between the first ejector rod 88 and the second guide sleeve 87.

When people need to use the heating and bending device, firstly, the polyethylene pipe is stretched into the fixing frame 2, the polyethylene pipe passes through the second guide sleeve 87, the first ejector rod 88 and the first guide sleeve 82, the polyethylene pipe passes between the heating plates 4 and between the rollers 62, then the main power switch is pressed down, the heating plate 4, the temperature sensor 74 and the LCD display screen 75 are electrified, the heating plate 4, the temperature sensor 74 and the LCD display screen 75 start to work, the heating plate 4 can heat the polyethylene pipe, the temperature sensor 74 can sense the temperature of the polyethylene pipe, the LCD display screen 75 can display the temperature of the polyethylene pipe, when the temperature sensor 74 senses that the temperature of the polyethylene pipe is higher than a rated value, the temperature sensor 74 sends a signal, the control module receives the signal and then controls the heating plate 4 to stop working, and simultaneously controls the telescopic rod of the first electric push rod 53 to extend to drive the first sliding frame 55 to move to the right, the first sliding frame 55 drives all the components thereon to move rightwards, when the first guide sleeve 82 contacts with the first top rod 88, the first guide sleeve 82 stops moving, the first sliding frame 55 drives other components to continue moving rightwards, the second spring 84 is compressed, the sliding rod 72 is driven to move outwards through the connecting rod 81, so as to drive the heating plate 4 and the stop lever 85 to move outwards, so that the heating plate 4 loosens the polyethylene pipe, when the second spring 84 cannot be compressed, the first guide sleeve 82 extrudes the first top rod 88 to move rightwards, the third spring 89 is compressed, when the distance sensor 73 senses that the distance between the first guide sleeve 87 and the second guide sleeve is equal to a preset value, the control module controls the telescopic rod of the first electric push rod 53 to stop working, and simultaneously controls the extension of the second electric push rod 54 to be shortened by 5 seconds, and when the telescopic rod of the second electric push rod 54 extends, the second sliding frame 56 is driven to move rightwards, the second sliding frame 56 drives all the components thereon to move rightwards, so that the roller 62 rolls on the polyethylene pipe, when the clamping rod 86 contacts with the stop lever 85, the clamping rod 86 stops moving, so that the third sliding frame 61 and all the components thereon stop moving, the second sliding frame 56 drives the rack 66 to continue moving rightwards, the first spring 64 is compressed, the rack 66 drives the gear 65 to rotate anticlockwise, so as to drive the second mounting frame 63 and the roller 62 to rotate anticlockwise, the roller 62 bends the polyethylene pipe, after 5 seconds, the control module controls the second electric push rod 54 to pause for 1 minute, at this time, the polyethylene pipe is waited to be cooled, then the polyethylene pipe is manually pushed leftwards, so as to take out the bent polyethylene pipe, after 1 minute, the control module controls the telescopic rod of the second electric push rod 54 to shorten, drives the second sliding frame 56 to move leftwards to reset, the second sliding frame 56 drives the rack 66 to move leftwards first, the first spring 64 is restored, the rack 66 drives the gear 65 to rotate clockwise to restore, so as to drive the second mounting rack 63 and the roller 62 to rotate clockwise to restore, then the second sliding rack 56 drives all the components thereon to move leftwards to restore, the clamping rod 86 is separated from the stop lever 85, after 5 seconds, the control module controls the second electric push rod 54 to stop working, simultaneously the control module controls the telescopic rod of the first electric push rod 53 to shorten for 5 seconds, so as to drive the first sliding rack 55 to move leftwards to restore, the first sliding rack 55 drives all the components thereon to move leftwards to restore, the third spring 89 restores to the original state first, so as to drive the first ejector pin 88 to move leftwards to restore, then the first guide sleeve 82 is separated from the first ejector pin 88, the second spring 84 restores to the original state, the sliding rod 72 is driven by the connecting rod 81 to move inwards to restore, so as to drive the heating plate 4 and the stop lever 85 to move inwards to restore, after 5 seconds, the control module controls the first electric push rod 53 to stop working, the polyethylene pipe can be heated and bent again by repeating the operation, when people do not need to use the heating and bending equipment, the power supply main switch is pressed down again, the heating and bending equipment is powered off, and the heating plate 4, the temperature sensor 74 and the LCD screen 75 stop working.

Example 2

On the basis of embodiment 1, as shown in fig. 2, 3, 12, 13, 14 and 15, the cooling device 9 further includes a cooling mechanism 9, the cooling mechanism 9 includes an air inlet duct 91, a fixing seat 92, a fan 93, an air guide duct 94 and a wind shield 95, the air inlet duct 91 is disposed in the middle of the front side of the fixing frame 2, the fixing seat 92 is disposed in the front portion of the inner side of the air inlet duct 91, the fan 93 is disposed in the rear side of the fixing seat 92, the air guide duct 94 is disposed in the middle of the rear side of the fixing frame 2, and the wind shield 95 is uniformly disposed in the rear portion of the inner side of the air guide duct 94 at intervals.

When the control module controls the second electric push rod 54 to pause, the control module controls the fan 93 to work for 1 minute, so that air can be blown to the polyethylene pipe for cooling, the polyethylene pipe can be rapidly molded, the air guide pipe 94 can exhaust air, the air baffle 95 can change the air exhaust direction, the blown air faces downwards, people are prevented from being scalded, and after 1 minute, the control module controls the fan 93 to stop working.

Also comprises a clamping mechanism 10, the clamping mechanism 10 comprises a third guide sleeve 1001, a second ejector rod 1002 and a fourth mounting rack 1003, clamping bar 1004, fourth spring 1005, spacing 1006 and fifth spring 1007, second guide pin bushing 87 front and back both sides all are equipped with third guide pin bushing 1001, all slidingtype is equipped with second ejector pin 1002 in the third guide pin bushing 1001, second ejector pin 1002 left side all is connected with first ejector pin 88, second guide pin bushing 87 right side is equipped with fourth mounting bracket 1003, fourth mounting bracket 1003 right side front and back symmetry slidingtype is equipped with clamping bar 1004, all be equipped with fourth spring 1005 between the clamping bar 1004 outside and the fourth mounting bracket 1003, fourth mounting bracket 1003 left side front and back symmetry slidingtype is equipped with spacing 1006, spacing 1006 all with second guide pin bushing 87 sliding type connection, spacing 1006 and second ejector pin 1002 cooperation, spacing 1006 and clamping bar 1004 cooperation, all be equipped with fifth spring 1007 between spacing 1006 left side and the second guide pin bushing 87.

When the first ejector rod 88 moves rightwards, the second ejector rod 1002 is driven to move rightwards, when the second ejector rod 1002 is in contact with the limiting frame 1006, the limiting frame 1006 is driven to move rightwards, the fifth spring 1007 is compressed, when the limiting frame 1006 is in contact with the clamping rod 1004, the clamping rod 1004 is driven to move inwards, the fourth spring 1005 is compressed, the clamping rod 1004 slightly clamps the right side of the polyethylene pipe, the phenomenon that the polyethylene pipe tilts when being bent is avoided, when the first ejector rod 88 moves leftwards to reset, the second ejector rod 1002 is driven to move leftwards to reset, when the second ejector rod 1002 is separated from the limiting frame 1006, the fifth spring 1007 is restored to the original state, the limiting frame 1006 is driven to move leftwards to reset, the limiting frame 1006 is separated from the clamping rod 1004, the fourth spring 1005 is restored to the original state, and the clamping rod 1004 is driven to move outwards to reset.

As shown in fig. 1, fig. 8, fig. 16 and fig. 17, the heating plate further comprises a control box 3 and an LCD display screen 75, the control box 3 is arranged on the right front side of the top of the fixing frame 2, the LCD display screen 75 is arranged on the rear side of the top of the control box 3, a switching power supply is included in the control box 3, the switching power supply supplies power to the whole heating and bending equipment, a power main switch is connected to the power supply module through a circuit, the control module and the power supply module are electrically connected, a DS1302 clock circuit and a 24C02 circuit are connected to the control module, the distance sensor 73, the temperature sensor 74 and the LCD display screen 75 are electrically connected to the control module, and the first electric push rod 53, the second electric push rod 54, the heating plate 4 and the fan 93 are all connected to the control module through peripheral circuits.

It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.