CN218195631U

CN218195631U - Thermal knife device of bus thermal shrinkage tube cutting machine

Info

Publication number: CN218195631U
Application number: CN202222622579.8U
Authority: CN
Inventors: 孙飞; 田超; 侯荣波; 刘乾伦
Original assignee: Shandong Huayuan Electric Co ltd
Current assignee: Shandong Huayuan Electric Co ltd
Priority date: 2022-06-30
Filing date: 2022-09-30
Publication date: 2023-01-03
Anticipated expiration: 2032-09-30
Also published as: CN116653042A; CN116653040A; CN218195632U; CN116653041A; CN114953025A; CN218195630U

Abstract

The utility model discloses a generating line pyrocondensation pipe cutting machine hot knife device, include: the cutter is rotatably arranged at one end of the cutter holder through a rotating shaft; the electric heating rod, the electric heating rod is used for right the pivot heats, and passes through the pivot gives the heat conduction the cutter, the pivot is provided with the centre bore, the electric heating rod is fixed in the heating rod support and stretches into the centre bore, the electric heating rod with the clearance is left to the inner wall of centre bore. When the pivot rotated, can not wearing and tearing the electrical heating stick, and the heat that the electrical heating stick produced then heats the pivot through the form of heat radiation, afterwards, the pivot is given the cutter with the conduction mode with the heat rapidly, and "hot sword" can provide good process conditions for cutting the pyrocondensation pipe, can once only accomplish the cutting to the pyrocondensation pipe, need not to cut repeatedly, has improved the cutting efficiency of pyrocondensation pipe, has avoided simultaneously causing the damage to the generating line because of cutting repeatedly, has guaranteed the finished product quality of generating line.

Description

Thermal knife device of bus thermal shrinkage tube cutting machine

The utility model discloses require the priority of chinese invention patent application "intelligent generating line pyrocondensation pipe cutting equipment and cutting technology thereof", the priority number is CN202210765488.1, and the priority date is 2022 year 6 month 30.

Technical Field

The utility model relates to an overlap joint that the pyrocondensation pipe end portion on the generating line or generating line and other wire electricity are connected to the cover carries out the equipment of mechanical cutting, especially relates to an utilize high temperature cutter to carry out the device of cutting to the pyrocondensation pipe.

Background

The bus has the functions of collecting, distributing and transmitting electric energy, and in the power supply system, the connection of various levels of voltage distribution equipment, the bus bars are generally made of rectangular or round section bare conductors or stranded wires, which are collectively referred to as bus bars. The copper bar or the aluminum bar in the bus is widely applied. In order to carry out insulation protection to the generating line, prevent the emergence of accidental short circuit accident, need cover on the generating line and establish the pyrocondensation pipe, the pyrocondensation pipe is made by special polyolefin material, in order to adapt to the installation demand of generating line simultaneously, needs to cut the processing to the overlap joint that pyrocondensation pipe tip or generating line and other wire are electrically connected.

The manual cutting is simple and convenient, but has great randomness, and mainly has the following problems: firstly, the operator cannot accurately control the cutting depth, and the heat shrinkable tube is easy to fall off due to over shallow cutting, or the copper bar is damaged due to over-deep cutting; secondly, the tube wall of the high-pressure heat-shrinkable tube after shrinkage is hard, an operator needs to cut repeatedly, the cutting efficiency is very low, and hands are easily injured; thirdly, the consistency of the cutting shape can not be ensured by manual cutting, and the phenomena of edge burrs or uneven tangent lines and the like easily occur.

In order to solve the problem, chinese utility model patent CN215318871U discloses a pyrocondensation pipe cutting machine, has realized the automatic cutting to the pyrocondensation pipe, has solved the problem that manual cutting appears edge burr or tangent line inequality easily, has effectively reduced intensity of labour, still has following problem:

firstly, the high-pressure heat-shrinkable tube on the bus is very thick and very hard after the shrinkage is finished, and the high-pressure heat-shrinkable tube still needs to be repeatedly cut by a mechanical cutter, so that the cutting efficiency is influenced, the bus is easily damaged, and the finished product quality of the bus is influenced; secondly, the mechanical cutter can only cut the heat shrinkable tube in the width direction, and an operator needs to use the cutter to perform secondary cutting along the length direction of the bus to strip the removed tube material, so that the cutting efficiency of the heat shrinkable tube is slowed down; in the third place, the first place is, the mechanical cutting equipment can only compress the bus at one position, the compressing effect on the bus is poor, so that the condition that the heat shrinkable tube is cut unevenly is easy to occur.

The key of the cutting of the heat shrinkable tube is a cutter, how to make the heat shrinkable tube become thick and hard, the technical problems that the efficient cutting is realized and the quality of the bus finished product is improved are urgently needed to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a generating line pyrocondensation pipe cutting machine hot sword device to solve under the condition of pyrocondensation pipe shrink thickening sclerosis, how to realize high-efficient cutting, improve generating line finished product quality's technical problem.

To solve the problems mentioned above the technical problem is that the method for preparing the high-purity sodium alginate, the utility model adopts the technical proposal that: a thermal knife device of a bus thermal shrinkage tube cutting machine comprises: cutter and blade holder, the cutter is the disc blade, the cutter rotate through the pivot install in the one end of blade holder, hot sword device is still including being used for improving the heating device of cutter temperature, heating device includes the electrical heating stick, the electrical heating stick is used for right the pivot heats, and passes through the pivot gives the heat conduction the cutter.

Preferably, the blade holder includes blade holder body and heating rod support that fixed connection is in the same place, the cutter rotate through the pivot install in the one end of blade holder body, the pivot is provided with the centre bore, the electrical heating rod is fixed in the heating rod support stretches into the centre bore, the electrical heating rod with the inner wall of centre bore leaves the clearance.

Preferably, the center hole is a through hole, the cutter is attached to and fixed on the outer side end face of the rotating shaft, and the cutter closes the center hole.

Preferably, the rotating shaft is provided with a head, the cross-sectional area of the head is obviously increased relative to the cross-sectional area of the other part of the rotating shaft, and the cutter is fixed on the outer side end face of the head through a fastener.

Preference is given to in the above-mentioned manner, the cutter holder body and the heating rod support are provided with heat dissipation holes.

Preferably, the heating rod support is a U-shaped structure, and the U-shaped structure is provided with a hollow part.

Preferably, the tool apron body is provided with a through hole, and the through hole is communicated with the hollow part of the U-shaped structure.

Preferably, the heating rod passes through the mounting hole of the heating rod bracket and is fixed by a fastener.

Preferably, the other end of the tool apron body is hinged to the tool rest, and a torsion spring is mounted between each of the two side walls of the tool apron body and the tool rest.

Preferably, the middle part of the tool apron body is hinged with the tool rest, a power tool lifting mechanism is arranged between the tool apron body and the tool rest, the power cutter lifting mechanism comprises an air cylinder or an electric push rod connected between the other end of the cutter holder body and the cutter rest.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

(1) Because the hot knife device is provided with the heating device who is used for improving the cutting tool temperature, heating device includes the electrical heating stick, the electrical heating stick is used for right the pivot heats, and passes through the pivot gives the heat conduction the cutter, the cutting tool under the high temperature becomes the hot knife, provides good process conditions for cutting the pyrocondensation pipe, can once only accomplish the cutting to the pyrocondensation pipe, need not to cut repeatedly to improve the cutting efficiency of pyrocondensation pipe and the production efficiency of generating line, avoided simultaneously causing the damage to the generating line because of cutting repeatedly, guaranteed the finished product quality of generating line.

(2) Because the blade holder includes blade holder body and the heating rod support that fixed connection is in the same place, the cutter rotate through the pivot install in the one end of blade holder body, the pivot is provided with the centre bore, the electrical heating rod is fixed in the heating rod support and stretches into the centre bore, the electrical heating rod with the inner wall of centre bore leaves the clearance, and when the pivot rotated, can not wear and tear the electrical heating rod, and the heat that the electrical heating rod produced then heats the axis of rotation through the form of heat radiation, and the cutter passes through the outside terminal surface that the fastener is fixed in the cutter, therefore the pivot can give the cutter with the heat through the conduction mode, makes it the temperature rise and becomes "hot sword" rapidly, and simple structure is practical.

(3) In the structure, the first rotating shaft is not exposed, so that the first rotating shaft cannot interfere with a bus workpiece when cutting is carried out, and the adaptability of the cutting machine is improved.

(4) Because the rotating shaft is provided with the head, the cross section area of the head is obviously increased relative to other parts of the rotating shaft, and the cutter is fixed on the outer side end face of the head through the fastener, the heat transfer area when the rotating shaft is in contact with the cutter is increased, and the heat conduction effect is improved.

(5) In the utility model, the cutter holder body and the heating rod support are both provided with heat dissipation holes, the heating rod support is in a U-shaped structure, the U-shaped structure is provided with a hollow part, the cutter holder body is provided with a through hole, the through hole is communicated with the hollow part of the U-shaped structure, and the measures reduce the transmission of heat to other parts of the equipment through the cutter holder and are beneficial to the safe operation of the equipment.

In summary, the utility model discloses a hot knife device is the important component part of pyrocondensation pipe cutting machine horizontal cutting device and vertical cutting device, utilizes the electrical heating rod to heat the cutter, and high temperature cutter (hot sword) can carry out the fly-cutting to the pyrocondensation pipe, compares in current mechanical type cutting equipment, and high temperature hot sword can once only accomplish the pyrocondensation pipe cutting, need not to go and cut repeatedly to under the condition of pyrocondensation pipe shrink thickening sclerosis, realized high-efficient cutting, improved the technological problem of generating line finished product quality.

Drawings

Fig. 1 is a schematic structural view of a bus bar heat shrink tube cutting machine 1 using the hot knife device of the present invention;

FIG. 2 is a schematic structural diagram of a part of the components mounted on the cutting platform in embodiment 1 shown in FIG. 1;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a bottom view of FIG. 2;

FIG. 5 is a front view of FIG. 2;

FIG. 6 is a rear view of FIG. 2;

FIG. 7 is a left side view of FIG. 2;

fig. 8 is a schematic structural view of a longitudinal rolling and cutting device in embodiment 1 of the present invention;

FIG. 9 is a top view of FIG. 8;

FIG. 10 is a schematic view of a part of the structure of an embodiment 2 of a bus bar heat shrinkable tube cutting machine using the hot knife device of the present invention;

FIG. 11 is a schematic view of the cutting unit of FIG. 10 positioned below the cutting platform;

FIG. 12 is a schematic view showing the structure of a cross rolling-cut apparatus in example 2;

FIG. 13 is a cross-sectional view of FIG. 12 taken through the longitudinal cross-section through the center of rotation of the first tool;

FIG. 14 is a schematic view showing another angle structure of the lateral rolling-cut apparatus in example 2;

FIG. 15 is longitudinal hobbing of example 2 the structure of the device is schematically shown;

FIG. 16 is a cross-sectional view of FIG. 15 taken in longitudinal section through the center of rotation of the third tool;

wherein: 1a, a box body; 2a, cutting a platform; 3a, an upper bracket; 4. a bus bar; 5a, a first tool rest; 6a, b a first tool apron; 7a, a first rotating shaft; 8a, a first cutter; 9a, a first electric heating rod; 10a, a laser positioner; 11a, a protective cover; 12a, a lower bracket; 13a, a second tool rest; 14a, a second tool apron; 15a, 15a a second rotating shaft; 16a, a second cutter; 17a, a a second electrical heating rod; 18a, a longitudinal support; 19a, a third tool holder; 20a, a third tool apron; 21a, a third rotating shaft; 22a, a third cutter; 23a, a third electric heating rod; 24a, a first slot; 25a, a second slot; 26a, a lifting plate; 27a, a first pressing cylinder; 28a, a pressure plate; 29a, a hold-down arm; 30a, a second pressing cylinder; 31a, a slide; 32a, a movable block; 33a, a first flapper; 34a, a second movable baffle; 35a, a second chute; 36a, a limiting groove; 37a, a locking handle; 38a, a torsion spring; 39a, a first lead screw; 40a, a first motor; 41a, a second lead screw; 42a, a second motor; 43a, a fixed bracket; 44a, a cable drag chain; 45a, ejecting out a cylinder;

2b, cutting the platform; 3b, an upper bracket; 5b, a first tool rest; 51b, a first tool carrier body; 52b, a first slider; 6b, a first tool apron; 61b, a first tool holder body; 62b, a first heater bar support; 63b, air holes; 64b, air holes; 65b, a bearing; 66b, a through hole; 67b, fasteners; 68b, a hinge shaft; 69b, a bearing; 7b, a first rotating shaft; 71b, a nut; 8b, a first cutter; 9b, a first electric heating rod; 10b, a laser positioner; 12b, a lower bracket; 13b, a second tool holder; 131b, a second tool holder body; 132b, a second slider; 14b, a second tool apron; 16b, a second cutter; 18b, a longitudinal support; 19b, a third tool holder; 191b, a third tool holder body; 192b, a third slider; 20b, a third tool apron; 201b, a third tool apron body; 202b, a third heater bar support; 203b, heat dissipation holes; 204b, heat dissipation holes; 205b, a nut; 206b, bearings; 207b, fasteners; 21b, a third rotating shaft; 22b, a third cutter; 23b, a third electric heating rod; 24b, a first slot; 25b, a second slot; 27b, a first hold-down cylinder; 28b, a pressure plate; 29b, a hold-down arm; 30. a second hold-down cylinder b;38b, a torsion spring; 39b, a first lead screw; 40b, a first motor; 41b, a second lead screw; 42b, a second motor; 45b and ejecting out the cylinder.

Detailed Description

Example 1

For ease of understanding, the following convention is made: the width direction of the bus bar 4 (see fig. 1) is denoted as the lateral direction, and the length direction of the bus bar 4 is denoted as the longitudinal direction. In the following description, a first … …, a second … …, a third … …, etc., such as a first tool post, a second tool post, a third tool post, etc., will be used, simply to facilitate the distinction between tool posts in different parts, all tool posts in nature; when the term "tool holder" is used in other parts without other limitations, the term "tool holder" should be understood herein to encompass the common attributes of a first tool holder, a second tool holder, and a third tool holder.

Fig. 1 to 9 collectively show a bus bar heat shrinkable tube cutting machine, and a cutting platform 2a is arranged on the top of a box body 1 a. As shown in fig. 2, an upper bracket 3a is fixed on the top of the cutting platform 2a, the upper bracket 3a extends along the width direction of the bus bar 4 (see fig. 1), a first tool holder 5a is slidably mounted on the upper bracket 3a, the first tool holder 5a slides along the length direction of the upper bracket 3a, a first tool holder 6a is mounted on the first tool holder 5a, a first tool 8a is mounted at the lower end of the first tool holder 6a through a first rotating shaft 7a, and the first tool 8a is preferably a disc blade so as to roll cut the heat shrinkable tube. The first cutter seat 6a is provided with a first electric heating rod 9a which can heat the first rotating shaft 7a, and the first rotating shaft 7a is used for rapidly transmitting heat generated by the first electric heating rod 9a to the first cutter 8a.

As shown in fig. 2, a laser locator 10a is mounted on the top of the upper bracket 3a, and the laser locator 10a is disposed toward the cutting platform 2a. When laser locator 10a shines towards cutting platform 2 a's direction, can launch cross location light, utilize cross location light to fix a position the generating line, the operator of being convenient for places the generating line fast according to the instruction of cross location light.

As shown in fig. 1 and 2, a protective cover 11a is arranged on the outer side of the upper bracket 3a, and the protective cover 11a and the box body 1a are used for carrying out safety protection on the cutting equipment, so that the condition that the cutting equipment is injured by people in the operation process is avoided.

As shown in fig. 4 to 6, a lower bracket 12a is fixed to the bottom of the cutting platform 2a, the lower bracket 12a extends along the width direction of the bus bar 4 (see fig. 1), a second tool holder 13a is slidably mounted on the lower bracket 12a, the second tool holder 13a slides along the length direction of the lower bracket 12a, the first tool holder 5a and the second tool holder 13a are connected together to a transverse sliding driving mechanism, a second tool holder 14a is mounted on the second tool holder 13a, a second tool 16a is mounted on the upper end of the second tool holder 14a through a second rotating shaft 15a, and the second tool 16a is preferably a disc blade to perform rolling cutting on the heat shrinkable tube. The second tool seat 14a is provided with a second electric heating rod 17a capable of heating the second rotating shaft 15a, and the second rotating shaft 15a is used for rapidly transmitting heat generated by the second electric heating rod 17a to the second tool 16a.

As shown in fig. 7 to 9, a longitudinal support 18a is disposed on one side of the lower support 12a, the longitudinal support 18a extends along a length direction of the bus bar 4, a third tool rest 19a is slidably mounted on the longitudinal support 18a, the third tool rest 19a slides along the length direction of the longitudinal support 18a, the third tool rest 19a is connected to a longitudinal sliding driving mechanism, a third tool apron 20a is mounted on the third tool rest 19a, the third tool apron 20a is connected to a power tool lifting mechanism, the power tool lifting mechanism is configured to drive the third tool apron 20a to rotate (to lift or drop a tool), the power tool lifting mechanism includes an ejection cylinder 45a, a cylinder body of the ejection cylinder 45a is mounted on the third tool rest 19a, and a piston rod of the ejection cylinder 45a is connected to a lower end of the third tool apron 20 a. The upper end of the third tool apron 20a is mounted with a third cutter 22a through a third rotating shaft 21a, and the third cutter 22a is preferably a disk blade for performing a roll cutting on the heat shrinkable tube. The third tool seat 20a is provided with a third electric heating rod 23a capable of heating the third rotating shaft 21a, and as above, the third rotating shaft 21a is used for rapidly transferring heat generated by the third electric heating rod 23a to the third tool 22a.

As shown in fig. 2, 3 and 7, a pressing mechanism for pressing the bus bar 4 is further mounted on the cutting platform 2a, and the pressing mechanism includes a front pressing portion and a rear pressing portion. The front pressing part comprises a lifting plate 26a which is vertically and slidably mounted on the upper bracket 3a, the lifting plate 26a is connected with a first pressing cylinder 27a, and a pressing plate 28 for pressing the bus bar 4 is fixed at the bottom of the lifting plate 26 a. The rear pressing portion comprises a pressing arm 29a used for pressing the bus bar 4, one end of the pressing arm 29a is arranged above the second open slot 25a, the other end of the pressing arm 29a is connected with a second pressing air cylinder 30a, and the cylinder body of the second pressing air cylinder 30a is fixed on the cutting platform 2a. The front pressing part and the rear pressing part respectively press two ends of the bus 4, so that the reliability of pressing the bus 4 is improved.

As shown in fig. 1 to 3, the cutting platform 2a is provided with a first open slot 24a and a second open slot 25a which are perpendicular to each other, and the second open slot 25a is communicated with the first open slot 24 a. The first slot 24a extends along the width direction of the bus bar 4, the first slot 24a is arranged between the upper bracket 3a and the longitudinal bracket 18a, the first cutter 8a and the second cutter 16a are both arranged in the first slot 24a, the second slot 25a extends along the length direction of the bus bar 4, the second slot 25a is arranged at one side of the longitudinal bracket 18a, and the third cutter 22a is arranged in the second slot 25 a.

As shown in fig. 1 to 3, a slide 31a is disposed on one side of the second slot 25a, the slide 31a extends along the length direction of the second slot 25a and is provided with a first slide slot, a movable block 32a is slidably mounted in the first slide slot, a first movable baffle 33a is mounted on the movable block 32a, and the first movable baffle 33a extends along the width direction of the second slot 25 a. In the present embodiment, the movable block 32a may be locked at an arbitrary position within the first chute. The lower part of the upper bracket 3a is provided with a second movable baffle 34a, the second movable baffle 34a is slidably mounted at the top of the cutting platform 2a, the second movable baffle 34a is provided with a second sliding groove 35a, the second sliding groove 35a extends along the length direction of the second open groove 25a, the inner wall of the second sliding groove 35a is provided with a plurality of limiting grooves 36a, the limiting grooves 36a are sequentially arranged along the length direction of the second open groove 25a, the cutting platform 2a is fixed with a vertically arranged locking handle 37a, the locking handle 37a penetrates through the second movable baffle 34a through the second sliding groove 35a and the limiting grooves 36a, and the locking handle 37a and the limiting grooves 36a can be used for carrying out position adjustment and limiting on the second movable baffle 34 a.

Before cutting work, an operator adjusts the positions of the first movable baffle plate 33a and the second movable baffle plate 34a in advance according to the specification parameters and the cutting requirements of the bus, when the first cutting position of the heat shrinkable tube is cut, one end of the bus is abutted against the first movable baffle plate 33a, when the second cutting position of the heat shrinkable tube is cut, the other end of the bus is abutted against the second movable baffle plate 34a, so that the bus on the two positions is kept vertical to the first cutter and the second cutter, the condition that the heat shrinkable tube cutting surface is inclined due to the inclination of the bus is avoided, the linear flatness of the cutting position of the heat shrinkable tube is ensured, and the quality of a finished product of the bus is further ensured.

As shown in fig. 2, 5 and 8, the upper end of the first tool apron 6a is hinged to the first tool holder 5a, the lower end of the second tool apron 14a is hinged to the second tool holder 13a, torsion springs 38a are respectively installed between two side walls of the first tool apron 6a and the first tool holder 5a and between two side walls of the second tool apron 14a and the second tool holder 13a, and the middle of the third tool apron 20a is hinged to the third tool holder 19 a.

As shown in fig. 2, 5 and 6, the transverse sliding driving mechanism includes two first horizontally disposed lead screws 39a, each first lead screw 39a extends along the length direction of the upper bracket 3a, one first lead screw 39a is rotatably mounted on the upper bracket 3a, the other first lead screw 39a is rotatably mounted on the lower bracket 12a, each first lead screw 39a is in transmission connection with a first motor 40a, and the first tool holder 5a and the second tool holder 13a are mounted on the corresponding first lead screw 39a in a threaded connection manner. With reference to fig. 2 and the means customary in the art, the first head 5a is obviously an assembly comprising a body and a slider slidably mounted on the upper support 3a, said slider being further provided with a nut in threaded connection with the corresponding first screw 39 a; the second tool holder 13a and the third tool holder 19a are obviously also of such a construction. Needless to say, according to the working principle of the present invention, the lateral sliding driving mechanism can be divided into an upper lateral sliding driving mechanism and a lower lateral sliding driving mechanism, the first lead screw 39a rotatably mounted on the upper bracket 3a is a part of the upper lateral sliding driving mechanism, and the first lead screw 39a rotatably mounted on the lower bracket 12a is a part of the lower lateral sliding driving mechanism, as a conventional technical means in the field, two first lead screws 39a can be simultaneously in transmission connection with the first motor 40a, and can also be respectively in transmission connection with an independent motor.

As shown in fig. 8 and 9, the longitudinal sliding driving mechanism includes a second lead screw 41a extending along the length direction of the longitudinal support 18a, the second lead screw 41a is rotatably mounted on the longitudinal support 18a, the second lead screw 41a is connected with a second motor 42a in a transmission manner, and the third tool holder 19a is mounted on the second lead screw 41a in a threaded manner.

As shown in fig. 2, 7 and 9, a fixing bracket 43a is fixedly mounted on each of the first tool rest 5a, the second tool rest 13a and the third tool rest 19a, each fixing bracket 43a is fixedly connected with one end of a cable drag chain 44a, and the other end of each cable drag chain 44a is fixed on the upper bracket 3a, the lower bracket 12a and the longitudinal bracket 18 a. The setting of cable tow chain has improved the stationarity of first knife rest, second knife rest and third knife rest motion, on the one hand, plays the guard action to the heating device circuit, reduces the circuit and scrapes and bump other damages, and on the other hand has avoided the edge at pyrocondensation pipe by cutting position burr or the uneven condition of tangent line to appear, and then has improved the linear straightness in pyrocondensation pipe by cutting position, has guaranteed the off-the-shelf quality of generating line.

From the above, it can be seen that:

the utility model discloses a generating line pyrocondensation pipe cutting machine, cutting platform 2a are equipped with first fluting 24a and second fluting 25a, and first fluting 24a extends along the width direction of generating line, and second fluting 25a is followed the length direction of generating line extends, and second fluting 25a and first fluting 24a communicate.

An upper support 3a is fixed at the top of the cutting platform 2a, an upper transverse rolling cutting device is slidably mounted on the upper support 3a, the upper transverse rolling cutting device is in transmission connection with an upper transverse sliding driving mechanism, the moving direction of the upper transverse rolling cutting device is consistent with the extending direction of the first open groove 24a, and a cutting tool of the upper transverse rolling cutting device is arranged in the first open groove 24 a.

A lower support 12a is fixed at the bottom of the cutting platform 2a, a lower transverse rolling-cutting device is slidably mounted on the lower support 12a, the lower transverse rolling-cutting device is in transmission connection with a lower transverse sliding driving mechanism, the moving direction of the lower transverse rolling-cutting device is consistent with the extending direction of the first open groove 24a, and a cutting tool of the lower transverse rolling-cutting device is arranged in the first open groove 24 a.

A longitudinal support 18a is fixed at the bottom of the cutting platform 2a, a longitudinal rolling cutting device is slidably mounted on the longitudinal support 18a, the longitudinal rolling cutting device is in transmission connection with a longitudinal sliding driving mechanism, the moving direction of the longitudinal rolling cutting device is consistent with the extending direction of the second open slot 25a, and during cutting, a cutting tool of the longitudinal rolling cutting device is located in the second open slot 25 a.

The upper transverse hobbing device comprises: the cutter comprises a first cutter holder 5a, a first cutter seat 6a and a first cutter 8a, wherein the upper end of the first cutter seat 6a is hinged to the first cutter holder 5a, a torsion spring 38a is arranged between the two side walls of the first cutter seat 6a and the first cutter holder 5a, and the lower end of the first cutter seat 6a is rotatably provided with the first cutter 8a through a first rotating shaft 7 a.

The lower transverse hobbing device comprises: the tool rest comprises a second tool rest 13a, a second tool apron 14a and a second tool 16a, wherein the lower end of the second tool apron 14a is hinged to the second tool rest 13a, torsion springs 38a are arranged between two side walls of the second tool apron 14a and the second tool rest 13a, and the upper end of the second tool apron 14a is rotatably provided with the second tool 16a through a second rotating shaft 15 a.

In order to cut the heat-shrinkable tube portion at the position of the side wall of the bus bar, the bottom of the first cutter 8a is lower than the top of the bus bar, and the top of the second cutter 16a is higher than the bottom of the bus bar. During cutting operation, the first cutter 8a moves along the width direction of the bus bar and is firstly contacted with the heat shrinkable tube part on the side wall of the bus bar, and during the continuous movement process of the first cutter, the heat shrinkable tube part on the side wall of the bus bar is firstly cut, and then under the action of the side wall of the bus bar, the first cutter rotates and lifts to cut the heat shrinkable tube part on the top of the bus bar. Meanwhile, the second cutter 16a moves along the same direction as the first cutter 8a, the other half part of the heat shrinkable tube on the same side wall of the bus is contacted and cut, and then under the action of the side wall of the bus, the second cutter 16a rotates and presses down to cut the heat shrinkable tube part at the bottom of the bus, so that the heat shrinkable tube is completely cut in the width direction.

The arrangement of the torsion spring 38a not only plays a role of limiting the rotation angles of the first tool apron 6b and the second tool apron 14a, after the cutting work is completed, the first tool apron 6a and the second tool apron 14a can complete the homing under the elastic force of the torsion spring 38a, but also when the heat shrinkable tube is cut by the first tool apron 6a and the second tool apron 14a, the first cutter seat 6a and the second cutter seat 14a can be given certain pressure, the first cutter 8a and the second cutter 16a are pressed on the heat shrinkable tube, the first cutter 8a and the second cutter 16a can cut the heat shrinkable tube at one time, and therefore the cutting effect of the first cutter 8a and the second cutter 16a on the heat shrinkable tube is guaranteed.

The longitudinal hobbing device comprises: the cutter lifting mechanism comprises a third cutter holder 19a, a third cutter seat 20a and a third cutter 22a, wherein the middle part of the third cutter seat 20a is hinged to the third cutter holder 19a, the upper end of the third cutter seat 20a is rotatably provided with the third cutter 22a through a third rotating shaft 21a, and a power cutter lifting mechanism is arranged between the third cutter seat 20a and the third cutter holder 19a and comprises an ejection cylinder connected between the lower end of the third cutter seat 20a and the third cutter holder 19 a.

The ejection cylinder 45a drives the third tool apron 20a to rotate through the extension and retraction of the piston rod, so that the third tool 22a is lifted and pressed down, when the heat shrink tube needs to be cut in the length direction, the third tool 22a is lifted (lifted) through the ejection cylinder, the third tool 22a is pressed on the heat shrink tube at the corresponding position to be cut, when the heat shrink tube does not need to be cut in the length direction, the third tool 22a (lowered) is pressed down through the ejection cylinder 45a, the third tool 22a is far away from the heat shrink tube at the bottom of the bus, and accidental injury of the third tool 22 on the heat shrink tube is avoided.

The upper transverse rolling cutting device is provided with a first heating device for improving the temperature of the cutting tool, the lower transverse rolling cutting device is provided with a second heating device for improving the temperature of the cutting tool, and the longitudinal rolling cutting device is provided with a third heating device for improving the temperature of the cutting tool.

Specifically, the first heating device comprises a first electric heating rod 9a, and the first electric heating rod 9a is used for heating the first rotating shaft 7a and conducting heat to the first cutter 8a through the first rotating shaft 7 a; the second heating device comprises a second electric heating rod 17a, the second electric heating rod 17a is used for heating the second rotating shaft 15a and conducting heat to the second cutter 16a through the second rotating shaft 15 a; the third heating device includes a third electric heating rod 23a, and the third electric heating rod 23a is used for heating the third rotating shaft 21a and conducting heat to the third cutter 22a through the third rotating shaft 21 a.

To sum up, the utility model discloses a generating line pyrocondensation pipe cutting machine has adopted the automatic intelligent cutting technology of hot type, utilize the electrical heating rod to heat the cutter, high temperature cutter (hot sword) can carry out the fly-cutting to the pyrocondensation pipe, compare in current mechanical type cutting equipment, the high temperature hot sword can once only be accomplished the pyrocondensation pipe cutting, need not to cut repeatedly, thereby improved cutting efficiency and production efficiency to the pyrocondensation pipe, also avoided causing the damage to the generating line because of cutting repeatedly simultaneously, the finished product quality of generating line has been guaranteed. Moreover, the utility model discloses can also realize the automatic cutting of pyrocondensation pipe on width direction and length direction, length direction's incision can destroy the loop configuration of the pyrocondensation pipe that is downcut, need not the manual work and uses the cutter to carry out the secondary cutting to the pyrocondensation pipe again, is convenient for peel off the pyrocondensation pipe, alone can accomplish the cutting operation to the pyrocondensation pipe, has saved the cost of labor.

When the bus heat shrinkable tube cutting machine is used for cutting, the process comprises the following process steps:

s1, call 4 specification parameters of generating line that need work the utility model discloses in, with cutting machine circular telegram start back, operating personnel presses reset button for a long time, makes the automatic completion of cutting machine reset and the work of making change, calls the specification parameter that needs carry out cutting work' S generating line 4 simultaneously.

And S2, switching the cutting machine to an automatic operation mode.

S3, an operator places the bus 4 in place according to the indication of the laser line sent by the laser locator 10a, after preparation work is completed, the cutting machine is switched to an automatic operation mode, the laser locator 10a sends out the positioning laser line, a cross positioning point is formed on the cutting platform 2a, the operator places the bus 4 at a corresponding position according to the position indicated by the cross positioning point, and the first cutting position of the heat shrinkable tube is aligned with the cross positioning point.

S4 the cutting machine is started by pressing a start button by hand or by a foot-operated start switch.

S5, the automatic completion of cutting machine compresses tightly, fixed generating line 4 the utility model discloses in, the cutting machine starts the back, and first cylinder 27a and the second that compress tightly cylinder 30a and perhaps singly start simultaneously according to setting for technological parameter, and first cylinder 27a that compresses tightly drives lifter plate 26a and clamp plate 28a downstream, and the second compresses tightly cylinder 30a and drives and compress tightly arm 29a downstream, makes clamp plate 28a and compress tightly arm 29a simultaneously on generating line 4, has realized the fixed to generating line 4.

S6, the cutting machine automatically finishes cutting the heat shrinkable tube along the width direction of the bus 4, in the utility model, after the cutting machine is started, the first heating rod 9a and the second heating rod 17a are simultaneously started, the first heating rod 9a heats the first cutter 8a, the second heating rod 17a heats the second cutter 16a, then the first motor 40a is started, the first motor 40a drives the two first lead screws 39a to rotate simultaneously, the first cutter frame 5a and the second cutter frame 13a are driven to move along the width direction of the bus 4 simultaneously, the first cutter 8a and the second cutter 16a can firstly contact with the heat shrinkable tube part on the side wall of the bus 4 in the moving process, and cut the heat shrinkable tube part on the side wall of the bus 4, then under the action of the side wall of the bus bar 4, the first cutter 8a is rotated to be raised, the second cutter 16a is rotated to be pressed down, the heat-shrinkable tube part positioned at the top of the bus bar 4 is cut by the first cutter 8a, the heat-shrinkable tube part positioned at the bottom of the bus bar 4 is cut by the second cutter 16a, when the first cutter 8a and the second cutter 16a leave the bus bar, the first cutter 8a and the second cutter 16a can be rotated to return under the action of the torsion spring 38a to cut the heat-shrinkable tube part positioned on the other side wall of the bus bar 4, so that the heat-shrinkable tube is completely cut in the width direction, after the cutting work of the position is completed, the first motor 40a is automatically stopped, and the first pressing cylinder 27a and the second pressing cylinder 30a are started again to drive the pressing plate 28a and the pressing arm 29a to be raised.

Then, an operator pushes the bus 4 inwards to enable the other cutting position of the heat shrink tube to be aligned with the cross positioning point, the end portion of the nut 4 abuts against the second movable baffle 34a, the operator presses the start button or the pedal start switch again to start the cutting machine, the pressing plate 28a and the pressing arm 29a are used for fixing the bus 4 again, the first motor 40a is started to drive the two first lead screws 39a to rotate reversely, the first cutter 8a and the second cutter 16a move along the width direction of the bus 4 again, and cutting work of the second cutting position of the heat shrink tube is completed.

S7, the automatic length direction who follows generating line 4 of cutting machine accomplishes the cutting to the pyrocondensation pipe, the utility model discloses in, first cutter 8a and the second cutter 16a carry out the in-process of cutting to the second department cutting position of pyrocondensation pipe, third heating rod 23a starts, heat the intensification to third cutter 22a, ejecting cylinder 45a starts simultaneously, ejecting cylinder 45a drives the rotation of third blade holder 20a, lift third cutter 22a, make third cutter 22a press on the pyrocondensation pipe, second motor 42a starts, second motor 42a drives second lead screw 41a and rotates, drive third knife rest 19a and move along the length direction of generating line 4, carry out the ascending cutting of length direction to the pyrocondensation pipe that cuts, thereby accomplish the cutting operation to the pyrocondensation pipe.

S8, the automatic position that compresses tightly of opening of cutting machine, operating personnel takes out generating line 4, the utility model discloses in, accomplish behind the cutting operation to the pyrocondensation pipe, first motor 40a and second motor 42a stop simultaneously, ejecting cylinder 45a starts the rotatory playback of drive third blade holder 20a, come to depress third cutter 22a, meanwhile, first compress tightly cylinder 27a and second and compress tightly cylinder 30a according to setting for technological parameter simultaneously or single start-up, drive clamp plate 28a and compress tightly the rising of arm 29a, later operating personnel can take out generating line 4.

And S9, tearing off the cut part of the heat shrinkable tube along the cutting line by an operator to finish cutting the heat shrinkable tube on the bus 4.

After the cutting process is implemented, the heat shrinkable tube cutting machine disclosed by the utility model can cut out an "H" -shaped cut (two transverse cuts and one longitudinal cut) on the heat shrinkable tube, and the "H" -shaped cut is suitable for cutting off materials at the middle part of the heat shrinkable tube. Of course, if the cutting step at the second cutting position in the step S3 is omitted, a "T" shaped cut (one transverse cut and one longitudinal cut) may be cut, which is suitable for edging the end of the heat shrinkable tube. The longitudinal cut can damage the annular structure of the cut heat shrinkable tube, so that a cutter is not required to be manually used for carrying out secondary cutting on the heat shrinkable tube, the heat shrinkable tube is convenient to peel off, the condition that the heat shrinkable tube is cut unevenly due to the sliding of the bus 4 is avoided, and the quality of a finished product of the bus 4 is ensured. In whole cutting process, the operator only need to carry out position adjustment to generating line 4 can, realized once only cutting the pyrocondensation pipe and target in place, increased substantially the cutting efficiency of pyrocondensation pipe, alone can accomplish whole cutting operation moreover, reduced the cost of labor.

Example 2

Fig. 10 to fig. 16 disclose another bus heat shrinkable tube cutting machine, which has substantially the same working principle and overall layout as that of embodiment 1, but improves a partial structure, and for brevity, only the improvement will be described in detail below, and the same parts will not be described again.

As shown in FIG. 10, in a bus bar heat shrinkable tube cutting machine, a cutting platform 2b is provided with a first slot 24b and a second slot 25b, the first slot 24b extends along the width direction of a bus bar, the second slot 25b extends along the length direction of the bus bar, and the second slot 25b is communicated with the first slot 24 b.

As shown in fig. 10 and 11, an upper bracket 3b is fixed on the top of the cutting platform 2b, an upper transverse rolling and cutting device is slidably mounted on the upper bracket 3b, the upper transverse rolling and cutting device is in transmission connection with an upper transverse sliding driving mechanism, the moving direction of the upper transverse rolling and cutting device is consistent with the extending direction of the first open slot 24a, and a cutting tool of the upper transverse rolling and cutting device is arranged in the first open slot 24 b. A lower support 12b is fixed at the bottom of the cutting platform 2b, a lower transverse rolling-cutting device is slidably mounted on the lower support 12b, the lower transverse rolling-cutting device is in transmission connection with a lower transverse sliding driving mechanism, the moving direction of the lower transverse rolling-cutting device is consistent with the extending direction of the first open groove 24b, and a cutting tool of the lower transverse rolling-cutting device is arranged in the first open groove 24 b. The bottom of the cutting platform 2b is further fixed with a longitudinal support 18b, the longitudinal support 18b is slidably provided with a longitudinal rolling cutting device, the longitudinal rolling cutting device is in transmission connection with a longitudinal sliding driving mechanism, the moving direction of the longitudinal rolling cutting device is consistent with the extending direction of the second open slot 25b, and during cutting, a cutting tool of the longitudinal rolling cutting device is arranged in the second open slot 25 b.

As shown in fig. 10 to 14, the upper transverse rolling-cut device includes: the cutter comprises a first cutter holder 5b, a first cutter seat 6b and a first cutter 8b, wherein the upper end of the first cutter seat 6b is hinged to the first cutter holder 5b, torsion springs 38b are arranged between two side walls of the first cutter seat 6b and the first cutter holder 5b, and the lower end of the first cutter seat 6b is rotatably provided with the first cutter 8b through a first rotating shaft 7 b.

As shown in fig. 11, the lower transverse hobbing device comprises: the tool rest comprises a second tool rest 13b, a second tool apron 14b and a second tool 16b, wherein the lower end of the second tool apron 14b is hinged to the second tool rest 13b, torsion springs 38b are respectively installed between two side walls of the second tool apron 14b and the second tool rest 13b, and the upper end of the second tool apron 14b is rotatably provided with the second tool 16b through a second rotating shaft (not shown in the figure).

As shown in fig. 11, 15 and 16, the longitudinal roll-cutting device includes: the cutter comprises a third cutter frame 19b, a third cutter seat 20b and a third cutter 22b, wherein the middle part of the third cutter seat 20b is hinged to the third cutter frame 19b, the upper end of the third cutter seat 20b is rotatably provided with the third cutter 22b through a third rotating shaft 21b, and a power cutter lifting mechanism is arranged between the third cutter seat 20b and the third cutter frame 19b and used for lifting the cutter when cutting is needed and dropping the cutter when cutting is not needed. Specifically, the power tool lifting mechanism includes a cylinder 45b connected between the other end of the third tool apron 20b and the third tool rest 19b, and as an alternative, other electric or pneumatic power components such as an electric push rod may be used.

The upper transverse hobbing device is provided with a first heating device for increasing the temperature of the first cutter 8b, the lower transverse hobbing device is provided with a second heating device for increasing the temperature of the second cutter 16b, and the longitudinal hobbing device is provided with a third heating device for increasing the temperature of the third cutter 22b.

As shown in fig. 12 to 14, the first heating device includes a first electric heating rod 9b, and the first electric heating rod 9b is used for heating the first rotating shaft 7b and conducting heat to the first cutter 8b through the first rotating shaft 7 b. The first knife base 6b comprises a first knife base body 61b and a first heating rod support 62b which are fixedly connected together, the first knife base body 61b is hinged with the first knife rest 5b through a hinge shaft 68b, a bearing 69b is arranged between the hinge shaft 68b and the first knife base body 61b, and the hinge shaft 68b is fixedly connected with the first knife rest 5 b. The first rotation shaft 7b is rotatably connected to the first holder body 61b through a bearing 65b and is axially fixed by a nut 71 b. The first rotating shaft 7b is provided with a first center hole, the first electric heating rod 9b is fixed to the first heating rod support 62b and extends into the first center hole, and a gap is left between the first electric heating rod 9b and the inner wall of the first center hole. Preferably, the first electric heating rod 9b passes through the mounting hole of the first heating rod support 62b and is fastened by the fastener 67 b.

The first central hole is a through hole, a first cutter 8b is attached to and fixed on the outer side end face of the first rotating shaft 7b, and the first cutter 8b seals the first central hole. In the structure, the first rotating shaft 7b is not exposed, so that the interference with a bus bar workpiece is avoided when the cutting is carried out, and the adaptability of the cutting machine is improved. The first cutter 8b is fastened on the outer end face of the first rotating shaft 7b through a fastener, the cutter is convenient to replace through connection of the fastener, the cutter is simpler and more practical, and the countersunk head screw is not exposed when fastening is carried out, so that interference on cutting is less prone to being caused.

Due to the gap, the first rotating shaft 7b does not wear the first electric heating rod 9b when rotating, and the first rotating shaft 7b is heated by heat radiation. Moreover, the first cutter 8b is fixed to the outer end face of the first cutter 8b by a fastener, so that heat can be conducted to the first cutter 8b by contact, so that the temperature of the first cutter 8b is rapidly increased to become a "hot knife", facilitating cutting. The first shaft 7b is provided with a head portion which is significantly increased in cross-sectional area relative to the other portions of the first shaft 7b, thereby increasing the heat transfer area when the first shaft 7b is in contact with the first cutter 8b.

The heat generated by the first electric heating rod 9b being energized is effective only by the heat conducted to the first cutter 8b, and the smaller the heat conducted to other parts, the better. In this regard, the first holder body 61b is provided with heat dissipation holes 63b, and the first heater rod holder 62b is provided with heat dissipation holes 64b. Further, as shown in fig. 14, the first electric heating rod support 62b is designed in a U-shaped structure having a hollow portion for the purpose of reducing a heat transfer area in contact with the first blade holder body 61 b. The first blade holder body 61b is provided with a through hole 66b, and the through hole 66b is communicated with the hollow part of the U-shaped structure, so that the heat dissipation effect can be improved, and the lead of the first electric heating rod 9b can conveniently pass through the through hole.

In the lower transverse rolling and cutting device, the heating device, the installation structure thereof, the heat conduction structure and the like are collectively referred to as a hot knife device, and compared with the hot knife device in the upper transverse rolling and cutting device, the structure and the principle are basically the same, and the simple expression is as follows:

in the longitudinal rolling cutting device, the second heating device comprises a second electric heating rod, and the second electric heating rod is used for heating the second rotating shaft and conducting heat to the second cutter through the second rotating shaft. The second cutter holder comprises a second cutter holder body and a second heating rod support which are fixedly connected together, the second cutter holder body is hinged with the second cutter holder, the second rotating shaft is rotatably connected with the second cutter holder body, the second rotating shaft is provided with a second central hole, the second electric heating rod is fixed on the second heating rod support and extends into the second central hole, and a gap is reserved between the second electric heating rod and the inner wall of the second central hole; the second center hole is a through hole, the second cutter is attached to and fixed on the outer end face of the second rotating shaft, and the second center hole is closed by the second cutter. The second cutter holder body and the second heating rod support are provided with heat dissipation holes.

In the longitudinal rolling and cutting device, the heating device, the installation structure thereof, the heat conduction structure and the like are collectively called as a hot knife device, and compared with the hot knife device in the upper transverse rolling and cutting device, the structure and the principle are basically the same, and the simple expression is as follows:

as shown in fig. 15 and 16, in the longitudinal rolling cutting device, the third heating means includes a third electric heating rod 23b, and the third electric heating rod 23b is used for heating the third rotating shaft 21b and conducting heat to the third cutter 22b through the third rotating shaft 21 b.

The third tool apron 20b includes a third tool apron body 201b and a third heating rod support 202b which are fixedly connected together, the third tool apron body 201b is hinged with a third tool rest 19b (see fig. 11), a third rotating shaft 21b is rotatably connected with the third tool apron body through a bearing 206, the third rotating shaft 21b is provided with a third central hole, a third electric heating rod 23b is fixed on the third heating rod support 202b and extends into the third central hole, and a gap is left between the third electric heating rod 23b and the inner wall of the third central hole.

The third central hole is a through hole, the third cutter is attached to and fixed to the outer end surface of the third rotating shaft 21b, and the third cutter 22b closes the third central hole. The third tool rest body 201b is provided with heat dissipation holes 203b, and the third heater rod holder 202b is also provided with heat dissipation holes 204b. The third electric heating rod 23b passes through the mounting hole of the third heating rod holder 202b and is fixed by a fastener 207 b.

The utility model discloses in, roll and cut the device and realize by the slip actuating mechanism.

As shown in fig. 10 and 11, the upper transverse sliding driving mechanism includes two first lead screws 39b, one of the first lead screws 39b is rotatably mounted on the upper bracket 3b, the first tool rest 5b is in threaded connection with the first lead screw 39b, and the first lead screw 39b is in transmission connection with a first motor 40 b. The first tool rest 5b comprises a first tool rest body 51b and a first slide block 52b fixedly connected together, the first slide block 52b is slidably mounted on the upper bracket 3b, and the first slide block 52b is provided with a first nut (not shown in the figure) which is in threaded connection with the first lead screw 39 b.

The lower transverse sliding driving mechanism comprises another first lead screw 39b, the other first lead screw 39b is rotatably mounted on the lower bracket 12b, the second tool rest 13b is in threaded connection with the other first lead screw 39b, and the other first lead screw 39b is in transmission connection with a first motor 40b or is driven by an independent motor. The second tool holder 13b comprises a second tool holder body 131b and a second slide block 132b fixedly connected together, the second slide block 132b is slidably mounted on the lower bracket 12b, and the second slide block 132b is provided with a second nut (not shown in the figure) which is in threaded connection with the other first lead screw 39 b.

The longitudinal sliding driving mechanism comprises a second lead screw 41b, the second lead screw 41b is rotatably mounted on the longitudinal support 18b, the third tool rest 19b is in threaded connection with the second lead screw 41b, and the second lead screw 41b is in transmission connection with a second motor 42 b. The third tool holder 19b comprises a second tool holder body 191b and a third sliding block 192b which are fixedly connected together, the third sliding block 192b is slidably mounted on the lower bracket 12b, and the third sliding block 192b is provided with a third nut (not shown in the figure) which is in threaded connection with the second lead screw 41 b.

As shown in fig. 10, the cutting platform 3b is further provided with a front pressing mechanism for pressing the front part of the bus bar and a rear pressing mechanism for pressing the rear part of the bus bar. Compared to example 1, the structure is slightly different:

the front pressing part comprises a first pressing cylinder 27b installed on the upper support 3b, the first pressing cylinder 27b is connected with a pressing plate 28b, and the first pressing cylinder 27b drives the pressing plate 28b to lift so as to press the bus. The rear pressing portion comprises a pressing arm 29b, one end of the pressing arm 29b is arranged above the second open slot 25b, the other end of the pressing arm 29b is connected with a second pressing cylinder 30b, a cylinder body of the second pressing cylinder 30b is fixed on the cutting platform 2b, and the second pressing cylinder 30b presses the bus through swinging. The front pressing part and the rear pressing part respectively press two ends of the bus, so that the reliability of bus pressing is improved.

By using the bus bar thermoplastic pipe cutting machine disclosed in example 1 and example 2, H-shaped cuts (two transverse cuts and one longitudinal cut) or T-shaped cuts (one transverse cut and one longitudinal cut) can be made on the heat shrinkable pipe, which provides good adaptability for cutting the material of the bus bar heat shrinkable pipe. However, in some cases, if only the end of the heat shrinkable tube needs to be trimmed, the control of the longitudinal cut is easier, the cutter is cut from the edge to the limit point and then returns without active cutter lifting, and at this time, the longitudinal rolling device with the power cutter lifting mechanism in the embodiment 1 and the embodiment 2 is only required to be replaced by the lower transverse rolling device, so that the longitudinal rolling is also like the transverse rolling, the cutter is automatically jacked up by the bus and then automatically reset by the torsion spring, and the cutter lifting power is omitted, so that the equipment is simplified and energy is saved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A thermal knife device of a bus thermal shrinkage tube cutting machine comprises:

the cutter is a disc blade and is rotatably arranged at one end of the cutter holder through a rotating shaft,

the hot knife device further comprises a heating device for improving the temperature of the cutter, the heating device comprises an electric heating rod, the electric heating rod is used for heating the rotating shaft, and the rotating shaft conducts heat to the cutter.

2. The heat knife device of the bus heat shrink tube cutting machine as claimed in claim 1, wherein the knife holder comprises a knife holder body and a heating rod support which are fixedly connected together, the knife is rotatably mounted at one end of the knife holder body through a rotating shaft, the rotating shaft is provided with a central hole, the electric heating rod is fixed on the heating rod support and extends into the central hole, and a gap is reserved between the electric heating rod and the inner wall of the central hole.

3. The heat knife device of the bus bar heat shrink tube cutting machine as claimed in claim 2, wherein the central hole is a through hole, the knife is attached to and fixed to the outer end face of the rotating shaft, and the knife closes the central hole.

4. The heat knife device of the bus bar heat shrinkable tube cutting machine according to claim 3, wherein the rotating shaft is provided with a head portion, the cross-sectional area of the head portion is significantly increased relative to the other portion of the rotating shaft, and the knife is fixed to the outer end surface of the head portion by a fastener.

5. The heat knife device of the bus bar heat shrink tube cutting machine according to claim 2, wherein the knife holder body and the heater bar support are provided with heat dissipation holes.

6. The heat knife device of a bus bar heat shrink tube cutting machine according to claim 2, wherein the heater bar support is a U-shaped structure having a hollow portion.

7. The heat knife device of the bus bar heat shrinkable tube cutting machine as recited in claim 6, wherein said knife holder body is formed with a through hole, and said through hole communicates with a hollow portion of said U-shaped structure.

8. The heat knife device of the bus bar heat shrink tube cutting machine according to claim 2, wherein the heating rod passes through the mounting hole of the heating rod support and is fixed by a fastener.

9. The heat knife device of the bus bar heat shrinkable tube cutting machine according to any one of claims 2 to 8, wherein the other end of the knife holder body is hinged to a knife holder, and a torsion spring is installed between both side walls of the knife holder body and the knife holder.

10. The heat knife device of the bus heat shrink tube cutting machine according to any one of claims 2 to 8, wherein the middle part of the knife holder body is hinged to the knife holder, a power knife lifting mechanism is arranged between the knife holder body and the knife holder, and the power knife lifting mechanism comprises an air cylinder or an electric push rod connected between the other end of the knife holder body and the knife holder.