CN211907920U

CN211907920U - Synchronous pyrocondensation's of multiposition pencil pyrocondensation equipment, integrated device

Info

Publication number: CN211907920U
Application number: CN202020381852.0U
Authority: CN
Inventors: 汤列; 郭逸恺
Original assignee: Zhuji Canu Automation Equipment Co ltd
Current assignee: Zhuji Canu Automation Equipment Co ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-11-10
Anticipated expiration: 2030-03-23

Abstract

The utility model discloses a synchronous pyrocondensation's of multiposition pencil pyrocondensation equipment, integrated device belongs to automatic pencil generation equipment field. The utility model discloses can be to the pencil that has a plurality of pyrocondensation pipes, carry out accurate pyrocondensation to it respectively through multiunit heating element, and can set for the parameter alone, compare the market and only cover the scheme that the size is enlarged with the hot plate in the past, can guarantee that different pyrocondensation pipes can both carry out the pyrocondensation according to different technological requirements; meanwhile, the direct baking of the wire harness rubber can be avoided. Therefore, the whole equipment is more energy-saving and environment-friendly, and the equipment has strong adaptability to the size of the wire harness and the process and high compatibility. The utility model discloses can also further increase interval adjustment subassembly to heating element, realize autonomic, convenient adjustment of hot plate distance. Through this improvement, can be according to the biggest external diameter of different pencil, the optimum distance of adjustment hot plate for the effect that the pyrocondensation pipe absorbed the heat reaches the optimum, thereby realizes that the pyrocondensation pipe pyrocondensation is more high-efficient.

Description

Synchronous pyrocondensation's of multiposition pencil pyrocondensation equipment, integrated device

Technical Field

The utility model belongs to pyrocondensation automation equipment field in the pencil production, concretely relates to be used for pencil end to have one or more pyrocondensation pipe to realize once only accomplishing pyrocondensation automation equipment that the pyrocondensation protected.

Background

In the field of wire harness production, in the actual production, one or more wires (or metal terminals) are peeled, welded, riveted and the like to form a wire harness finished product required by a customer, and in the process, the connecting parts of the wires and the wires, the wires and the metal terminals and the like need to be protected to realize the purposes of insulation and the like. The heat shrinkage protection of the heat shrinkage pipe is an important and common protection means used in the link, and meanwhile, the heat shrinkage pipe has a bundling effect. The heat shrinkable tube is arranged at one end or near one end of the lead, so the industry refers to end heat shrinkage, for example, the heat shrinkable tube is required to perform heat shrinkage protection after the wire harness and the metal terminal are welded or riveted.

The wire harnesses are various in types, and with the development of society, the wire harnesses applied to various emerging fields are continuously appeared, for example, with the vigorous development of new energy vehicles, many new requirements on processes and equipment are provided for wire harness manufacturers. The method integrates various wire harnesses, and the characteristics of the thermal shrinkage process are summarized as follows: the section change is large, a plurality of heat shrinkable tubes (see fig. 1) exist near the end of one wire harness, and the heat shrinkable process requirements of the plurality of heat shrinkable tubes are different.

Based on the characteristics, the existing heat-shrinkable tube equipment cannot meet or realize all requirements of wire harness manufacturers, and each wire harness manufacturer also hopes that the heat-shrinkable tube equipment manufacturer can help solve pain points of the wire harness manufacturers. However, in the current situation, the equipment manufacturer only needs to increase the size of the heating plate of the original product to realize the function, and the design is not changed fundamentally, so that the equipment cannot completely meet the requirements of the heat-shrinkable process of the product, the pain points of customers cannot be completely solved, and the condition that the customers frequently customize the heat-shrinkable tube machine for wire harnesses with different specifications can be caused.

Aiming at the above characteristic of thermal shrinkage of the heat shrinkable tube on the wire harness, some technical problems which need to be solved at present are as follows:

a. the change of the section of the wire harness is large: the sectional area of the wire harness core in the conventional field is 0.5mm²-120mm²The cross-sectional area of the copper core of the high-voltage wire used in the field of charging piles can reach 240mm²And even more. Because the sectional area span of the heat-shrinkable object is large, if the heat-shrinkable object is a small-section wire harness, the distance between the upper heating plate and the lower heating plate needs to be conveniently adjusted, and when the heat-shrinkable object is the small-section wire harness, the distance between the upper heat source and the lower heat source is adjusted to be small so as to adapt to the small-section wire harness; when the thermal shrinkage object is a large-section wire harness, the distance between an upper heat source and a lower heat source is adjusted to be larger to adapt to the large-section wire harness; in order to avoid undue dissipation of power consumption.

b. According to the actual processing requirement, the end of one wire harness is generally two heat-shrinkable tubes: one for protection of the junction of the wire harness body and the metal terminal and one for fixation of the wire harness body and the corrugated tube, but the practical production is not limited to the aforementioned use method. Generally, the position of the head heat shrinkable tube a is relatively fixed, and the position change of the second heat shrinkable tube b is relatively large; and the two heat shrinkable tubes are different, and the heat shrinkable processes of the two heat shrinkable tubes are different. According to the manufacturing process of the wire harness, the rubber of the wire harness is prevented from being baked by the heating plate so as to avoid aging or damage.

Therefore, it is necessary to provide a new heat pipe shrinking machine capable of realizing multi-position synchronous heat shrinkage.

Disclosure of Invention

An object of the utility model is to solve the problem that exists among the prior art to a synchronous pyrocondensation's of multiposition pencil pyrocondensation equipment is provided

The utility model discloses the concrete technical scheme who adopts as follows:

a multi-position synchronous thermal shrinkage wire harness thermal shrinkage device comprises a wire harness fixing mechanism, a thermal shrinkage pipe heating mechanism and an integral driving mechanism;

the wire harness fixing mechanism is used for fixing a wire harness to be subjected to heat shrinkage;

the integral driving mechanism is used for driving the wire harness fixing mechanism and the heat shrinkable tube heating mechanism to move relatively, so that a wire harness to be heat-shrunk, which is fixed on the wire harness fixing mechanism, enters and exits the heating area of the heat shrinkable tube heating mechanism;

the heat shrinkable tube heating mechanism is internally provided with at least two groups of heating assemblies, and the two groups of heating assemblies are arranged at intervals along the extending direction of the wire harness to be heat-shrunk, so that the heating action positions of different heating assemblies on the wire harness to be heat-shrunk are different; and at least one group of heating assemblies is provided with a position adjusting assembly which is used for driving the group of heating assemblies to move relative to other heating assemblies along the extending direction of the wire harness to be heat-shrunk so as to independently change the heating action positions of the group of heating assemblies on the wire harness to be heat-shrunk.

Preferably, the temperature of each set of heating assemblies is independently controlled.

Preferably, each group of heating assemblies comprises a first heating element and a second heating element which are respectively arranged on two sides of the wire harness to be heat-shrunk and are used for performing bidirectional heating and heat-shrinking on the heat-shrinkable tubes on the wire harness to be heat-shrunk in sections.

Further, at least one group of heating assemblies is provided with a spacing adjusting assembly, and the spacing adjusting assembly is used for adjusting the distance between the first heating element and the second heating element relative to the wire harness to be heat-shrunk.

Furthermore, the spacing adjusting assembly comprises a first nut, a second nut, a lifting rod and a guide shaft; the first nut and the second nut are respectively arranged on the mounting seats of the first heating element and the second heating element; the screw thread turning directions of the first nut and the second nut are opposite, the lifting rod is a bidirectional screw rod, and the lifting rod, the first nut and the second nut are respectively in screw thread fit and used for driving the first heating element and the second heating element to synchronously approach or synchronously depart from a wire harness to be subjected to heat shrinkage, which is fixed on the wire harness fixing mechanism; the guide shaft and the lifting rod are arranged in parallel and used for guiding and limiting the mounting seats of the first heating element and the second heating element.

Preferably, the first heating element and the second heating element are both heating flat plates and are respectively positioned above and below the wire harness to be heat-shrunk.

Preferably, the wire harness fixing mechanism is provided with a plurality of side-by-side fixing pieces for fixing a plurality of side-by-side wire harnesses to be heat-shrunk simultaneously; and the heating area of the heating assembly in the heat shrinkable tube heating mechanism covers a plurality of wire harnesses to be subjected to heat shrinkage simultaneously.

Preferably, the two groups of heating assemblies are provided, one group of heating assemblies is relatively fixed on a rack of the heat shrink tube heating mechanism, the other group of heating assemblies slides relative to the rack through the position adjusting assembly, and the two groups of heating assemblies are respectively used for heating two heat shrink tubes on the wire harness to be subjected to heat shrinkage.

Preferably, the adjusting range of the position adjusting assembly to the heating assembly satisfies the following conditions: the scanning range of the heating area of the adjusted heating assembly in the adjusting process covers the span range of the heated heat shrink tube on the wire harness to be heat shrunk.

Preferably, the wire harness fixing mechanism is fixed in position, and the heat shrinkable tube heating mechanism moves relative to the wire harness fixing mechanism under the drive of the integral drive mechanism.

Compared with the prior art, the utility model, following beneficial effect has:

1) the utility model discloses can be to the pencil that has a plurality of pyrocondensation pipes, carry out accurate pyrocondensation to it respectively through multiunit heating element, and can set for the parameter alone, compare the market and only cover the scheme that the size is enlarged with the hot plate in the past, can guarantee that different pyrocondensation pipes can both carry out the pyrocondensation according to different technological requirements; meanwhile, the direct baking of the wire harness rubber can be avoided. Therefore, the whole equipment is more energy-saving and environment-friendly, and the equipment has strong adaptability to the size of the wire harness and the process and high compatibility.

2) The utility model discloses can also further increase interval adjustment subassembly to heating element, realize the hot plate apart from autonomic, convenient adjustment of L. The method provides an autonomous and convenient way for saving more energy and improving the efficiency in the actual factory production. Through this improvement, can be according to the biggest external diameter of different pencil, the optimum distance of adjustment hot plate for the effect that the pyrocondensation pipe absorbed the heat reaches the optimum, thereby realizes that the pyrocondensation pipe pyrocondensation is more efficient, and is more energy-conserving simultaneously.

Drawings

FIG. 1 is a schematic view of a wiring harness configuration;

FIG. 2 is a schematic view of a heat-shrinking structure of an oversized heating plate on a conventional heat-shrinking apparatus to a heat-shrinkable tube on a wire harness;

FIG. 3 is a schematic diagram of the overall construction of a multi-position simultaneous heat-shrinking wire harness heat-shrinking apparatus;

FIG. 4 is a schematic view of the heat shrinkable tube heating mechanism of the apparatus moved integrally to the heat-shrinking position, which is independent of each other and can be moved independently;

FIG. 5 is a schematic view of two sets of heating assemblies of the wire harness heat-shrinking device independently shrinking heat-shrinkable tubes a, b;

FIG. 6 is a schematic view showing a left-right adjustment of a set of heating elements in the wire harness heat-shrinking apparatus according to the position of a heat-shrinkable tube b;

FIG. 7 is a schematic diagram of the wire harness heat shrinking device capable of adjusting the distance between two pairs of heating plates up and down according to the sectional area of the wire harness;

FIG. 8 is a schematic view of one implementation of the wire harness heat shrinking device adjusting the heater plate distance L;

FIG. 9 is a schematic view of the wire harness heat shrinking apparatus adjusting the horizontal position of the outside heating assembly

FIG. 10 is a schematic view of the wire harness heat shrinking apparatus operating only one of the groups of heating elements in accordance with an actual heat shrinking process;

the reference numbers in the figures are: the heat-shrinkable tube type air conditioner comprises a metal terminal 001, a corrugated tube 002, a heat-shrinkable tube heating mechanism 101, a wire harness fixing mechanism 102, a wire harness 103 to be heat-shrunk, a first heating element 201, a second heating element 202, a heat-shrinkable tube a203, a heat-shrinkable tube b204, a wire harness body rubber 205, a heating plate 206 with an enlarged size, a frame upright post 207, a heating plate mounting seat 208, a guide shaft 209, a guide shaft fixing seat 210, a linear bearing 211, a fixing block 212, a lifting rod 213, a first nut 214, a second nut 215, an air duct upper cover 216, a movable screw 217, a movable nut 218 and a four corner head A of the movable screw.

Detailed Description

The invention will be further elucidated and described with reference to the drawings and embodiments. The utility model discloses in the technical characteristics of each embodiment under the prerequisite that does not conflict each other, all can carry out corresponding combination.

As shown in fig. 1, for the sake of understanding, a structural form of a wire harness to be heat-shrunk is shown, and the wire harness is a common form in a new energy vehicle. In this wire harness, one end thereof is a metal terminal 001, the metal terminal 001 is joined to one end of a wire harness body, and the other end of the wire harness body is fixedly connected to one corrugated tube 002. Therefore, in such a wire harness, the wire harness generally needs to be provided with two heat shrinkable tubes along the way: one heat shrinkable tube a203 is used for protection of the junction of the wire harness body and the metal terminal 001, and the other heat shrinkable tube b204 is used for fixed protection of the junction of the wire harness body and the corrugated tube 002. Therefore, when performing the heat shrinking process, the wire harness needs to be subjected to the multi-position synchronous heat shrinking.

In the existing wire harness thermal shrinkage processing equipment, an upper heating plate and a lower heating plate are generally adopted to carry out thermal shrinkage processing on a wire harness. However, the heating area of the heating plate itself is limited, and if the interval between the heat shrinkable tubes a and b is too large, the area of the heating plate needs to be increased as well to solve the problem of insufficient heating area. As shown in fig. 2, the present apparatus for performing heat shrinking process on the wire harness with multi-position synchronous heat shrinking requirement is in the form of two heating plates 206 with increased size, that is, the areas of the upper and lower heating plates are increased, so that the heating area (i.e., the wavy line filling area in the figure) is expanded to be able to wrap the heat shrinkable tube a203 and the heat shrinkable tube b204 on the wire harness at the same time. However, in this case, since the area of the two heating plates 206 having an increased size is too large, the energy consumption thereof is also increased proportionally, and the economical efficiency is poor. Moreover, more seriously, because the outside of the wire harness body of the wire harness is generally wrapped with the wire harness body rubber 205, adverse reactions such as aging, ablation and the like easily occur to the wire harness body rubber 205 at high temperature, and the safety of the wire harness is affected. Moreover, the size of the heat shrink tube is continuously increased along with the technical development, when the heating area of the device cannot meet the requirement, the device with the heating plate with a larger size needs to be customized, and the updating cost of the device is too high for users.

In order to solve the technical problem, adapt to the pencil pyrocondensation processing demand of different specifications, do the utility model discloses a pencil pyrocondensation equipment of synchronous pyrocondensation of multiposition that provides in the preferred embodiment, as shown in fig. 3, its major structure divide into two stations, can carry out the duplex position operation simultaneously by an operation workman, and another station carries out the pencil clamping when a station carries out pyrocondensation processing to save the cost of labor. The internal structure of each station is the same, and mainly comprises a wiring harness fixing mechanism 102, a heat shrinkable tube heating mechanism 101 and an integral driving mechanism.

The wire harness fixing mechanism 102 is used for fixing the wire harness 103 to be heat-shrunk. The specific fixing form of the wire harness fixing mechanism 102 is not limited, and the wire harness 103 to be heat-shrunk can be detachably fixed. For the wire harness shown in fig. 1, since the end portion of the wire harness has the metal terminal 001, the wire harness fixing mechanism 102 may adopt the wire harness placing station board to fix the wire harness, the one end of the wire harness placing station board is provided with the metal pin matched with the mounting hole on the metal terminal 001, the metal terminal 001 may be directly clamped on the metal pin, and the end of the corrugated tube 002 of the wire harness 103 to be heat-shrunk may be fixed through the semicircular clamping groove on the wire harness placing station board. In the present embodiment, in consideration of the efficiency of the heat-shrinking process, a plurality of side-by-side fixing positions for simultaneously fixing a plurality of side-by-side wire harnesses 103 to be heat-shrunk are provided on the wire harness fixing mechanism 102. The heating area of the heating component in the heat shrinkable tube heating mechanism 101 can simultaneously cover a plurality of wire harnesses 103 to be heat-shrunk at one time, so that batch heat-shrinking treatment is realized. Of course, it is also fully possible to fix only a single wire harness 103 to be heat shrunk on the wire harness fixing mechanism 102, and no limitation is made.

The utility model provides a pyrocondensation pipe heating mechanism 101 mainly acts on and provides the heat for the pyrocondensation pipe, and whole actuating mechanism's effect is drive pencil fixed establishment 102 and pyrocondensation pipe heating mechanism 101 relative movement, makes fixed the heating region that pyrocondensation pencil 103 can pass in and out pyrocondensation pipe heating mechanism 101 of treating on pencil fixed establishment 102. When the wiring harness 103 to be heat-shrunk needs to be disassembled and assembled, the wiring harness on the wiring harness fixing mechanism 102 is kept outside the heat shrinkable tube heating mechanism 101 for convenient operation, as shown in FIG. 3; when the wire harness 103 to be heat-shrunk needs to be heated, the wire harness needs to be moved into the heat shrinkable tube heating mechanism 101 so that the heat shrinkable tube is located in the heating area of the heat shrinkable tube heating mechanism 101, as shown in fig. 4. The form of whole actuating mechanism has the multiple, and straight line module, lead screw sliding block set spare, cylinder and slide rail all can realize this drive function. The entire driving mechanism may drive the wire harness fixing mechanism 102 to move so as to keep the heat shrinkable tube heating mechanism 101 fixed, or may drive the heat shrinkable tube heating mechanism 101 to move so as to keep the wire harness fixing mechanism 102 fixed, as long as both mechanisms move relative to each other. In the present embodiment, since the wire harness is long, it is preferable to keep the wire harness fixing mechanism 102 fixed and the heat shrinkable tube heating mechanism 101 moved.

Compared with the traditional thermal shrinkage treatment equipment in FIG. 2, the utility model has the most core difference that the heating components are partitioned. Referring to fig. 5, a schematic diagram of a heating assembly inside the device and a wire harness 103 to be heat shrunk is shown, it should be noted that fig. 5 simplifies the components such as the wire harness fixing mechanism 102 and the supporting structure of the heating assembly, and is mainly used for explaining the principle, and fig. 6 to 8 are also the same. Two sets of heating assemblies are arranged in the heat shrink tube heating mechanism 101, and each set of heating assembly in this embodiment includes a first heating element 201 and a second heating element 202 which are respectively arranged on two sides of the wire harness 103 to be heat shrunk, so that the heat shrink tubes on the wire harness 103 to be heat shrunk are subjected to bidirectional heating and heat shrinkage in sections, and the heating uniformity is improved. The first heating element 201 and the second heating element 202 employ heating plates in the present embodiment, and are respectively located above and below the wire harness 103 to be heat-shrunk. Of course, the heating elements may be replaced by other heating elements capable of heating the heat shrinkable tube, and the first heating element 201 and the second heating element 202 may also be located on the left and right sides of the wire harness 103 to be heat shrunk, as long as the heat treatment interface of the heat shrinkable tube can be realized, but the structural form of the rest of the components should be adapted at this time.

The two groups of heating assemblies in fig. 5 are arranged at intervals along the extending direction of the wire harness 103 to be heat-shrunk, so that after the wire harness 103 to be heat-shrunk is moved into the heat shrink tube heating mechanism 101, the heating action positions of the different heating assemblies on the wire harness 103 to be heat-shrunk are different. The wavy line filled region in the figure represents the range of the heating region of the heating assembly, so that when two heat shrinkable tubes are respectively located below the corresponding heating assemblies, the heat shrinkable tubes can complete heat shrinkage, but the middle wire harness body rubber 205 is not damaged by high temperature. Moreover, since only two heat shrinkable tube positions need to be heated, the range of the heating region of a single heating assembly is also greatly reduced relative to that of fig. 2, and the overall energy consumption is lower.

In addition, since the positions of the heat shrinkable tubes on different wire harnesses are different and the lengths of the heat shrinkable tubes are different, the heating assembly in the form of a partition in fig. 5 may have a problem that the heat shrinkable processing requirements of different heat shrinkable tubes cannot be satisfied. In order to solve the problem, the utility model discloses can add position control subassembly on a set of heating element wherein. As shown in fig. 6, the position adjustment assembly is used for driving the group of heating assemblies to move relative to other heating assemblies along the extending direction of the wire harness 103 to be heat-shrunk, and the arrow direction in the figure indicates the moving direction of the heating assembly on the right side. During the movement of the heating assembly, the heating action position of the heating assembly on the wire harness 103 to be heat-shrunk is gradually changed. Therefore, when the distance between the heat shrinkable tube a and the heat shrinkable tube b on the wire harness 103 to be heat-shrunk is too large or too small, the distance between the two groups of heating assemblies can be directly adjusted through the position adjusting assembly, so that the wire harness to be heat-shrunk is suitable for the distance between the two heat shrinkable tubes. The realization form of position control subassembly is various, can realize through the equipment that can accurate output drive displacement in theory, for example cylinder, sharp module, arm etc.. In order to ensure uniformity of heating, the first heating element 201 and the second heating element 202 in the same group of heating assemblies generally need to ensure synchronous movement.

In the heat shrinkable tube heating mechanism 101, the two groups of heating elements may be provided with position adjusting elements for adjustment, or one of the two groups of heating elements may be provided with additional position adjusting elements as needed. Generally, in the existing wire harness in the market, the position of the head heat shrinkable tube a is relatively fixed, and the position change of the second heat shrinkable tube b is relatively large, so in this embodiment, it is preferable to arrange one group of heating elements to be relatively fixed on the rack of the heat shrinkable tube heating mechanism 101, and the other group of heating elements to slide relative to the rack through the position adjusting element. When the two groups of heating assemblies are used, the fixed heating assembly is used for heating the heat shrinkable tube a, and the movable heating assembly is properly adjusted according to the position of the heat shrinkable tube b, so that the heat shrinkable tube b can be heated by the other group of heating assembly at the same time.

In addition, the position adjusting assembly shown in fig. 6 can adapt to different heat shrinkable tube pitches, and can also solve the problem of overlong length of the heat shrinkable tube on a part of the wiring harness. For example, when the length of the heat shrinkable tube b204 is greater than the span of the heating region of the first heating element 201 and the second heating element 202, the conventional art needs to increase the size of the first heating element 201 and the second heating element 202 to make the area of the heating region larger. However, when the heating assembly is provided with the position adjusting assembly, the position of the first heating element 201 and the second heating element 202 can be adjusted continuously during the heat shrinking process. Referring to the same 6, the left ends of the heating regions of the first heating element 201 and the second heating element 202 are covered on the left end of the heat shrinkable tube b204, so that the left end of the heat shrinkable tube b204 is heated, and then the first heating element 201 and the second heating element 202 are controlled to move rightward synchronously, so that the rest part of the heat shrinkable tube b204 is gradually heated until the right end of the heat shrinkable tube b204 is covered. The movement of the first heating element 201 and the second heating element 202 can be fixed step length one-way movement according to the requirement of heat shrinkage, and can also be reciprocating movement. From this, to the pyrocondensation pipe of different length, the utility model discloses all can realize the processing of pyrocondensation pipe, need not to customize extra equipment.

For convenience of description, the range of the heating region sweep of the first heating element 201 and the second heating element 202 during the movement process is defined as the scanning range of the heating region. Of course, it should be noted that if such a scanning-type heat-shrinking process is to be implemented, the position adjustment range of the position adjustment assembly to the heating assembly should satisfy the following condition: the scanning range of the heating region of the adjusted heating assembly in the adjusting process covers the span range of the heated heat shrinkable tube on the wire harness 103 to be heat shrunk, that is, the whole heat shrinkable tube below the heating assembly can be heated. To ensure the stability of the heat shrinking process, the scanning range of the heating region should be generally slightly larger than the span range of the heated heat shrinkable tube.

In addition, in the actual production process, the cross section of the wire harness at different positions is greatly changed. The sectional area of the wire harness core in the conventional field is 0.5mm²～120mm²The cross-sectional area of the copper core of the high-voltage wire used in the field of charging piles can reach 240mm²And even larger. Because the sectional area of the heat-shrinkable object has a large variation range, for example, in view of efficiency and energy conservation, a heating element in the heating assembly needs to be capable of conveniently adjusting the distance between the heating element and the wiring harness, and when the heat-shrinkable object is a small-section wiring harness, the distance between an upper heat source and a lower heat source is adjusted to be small so as to adapt to the small-section wiring harness; when the thermal shrinkage object is a large-section wire harness, the distance between the upper heat source and the lower heat source is adjusted to be larger to adapt to the large-section wire harness. In this way, power consumption is not unduly dissipated. In the prior art, most heating assemblies are directly fixed when leaving a factory, and the function of adjusting the distance cannot be realized. Therefore, on the basis of fig. 5 or 6, a spacing adjustment assembly may also be provided on the heating assembly for adjusting the distance of the first heating element 201 and the second heating element 202 relative to the wire bundle 103 to be heat shrunk. Because heating element has the multiunit, specific which group of heating element need set up spacing adjustment assembly can be decided according to actual technology needs, if the pyrocondensation pipe size of a certain section position is invariable basically, can not need to set up spacing adjustment assembly on the heating element who is used for heating this section pyrocondensation pipe. However, generally, the cross sections of the different positions of the wire harness are changed in equal proportion, so in this embodiment, as shown in fig. 7, it is preferable that the distance adjusting assemblies are arranged on both sets of heating assemblies, so as to satisfy the requirement of the user to adjust the distance L between the upper and lower heating plates independently and conveniently.

The form of the spacing adjustment assembly can be many, and theoretically any driving mechanism capable of outputting displacement can be used, such as a linear module, a cylinder and the like. As a preferable mode of the present invention, a form capable of realizing the constant-speed synchronous movement of the first heating element 201 and the second heating element 202 is provided in the present embodiment to ensure that the heating adjustment thereof for the wire harness is synchronous. Referring to fig. 8, the spacing adjustment assembly includes a first nut 214, a second nut 215, a lift lever 213, and a guide shaft 209. First and

second nuts

214 and 215 are mounted on the mounting seats 208 of the first and

second heating elements

201 and 202, respectively. And the elevating bar 213 and the guide shaft 209 are installed on the frame of the heat shrinkable tube heating mechanism 101. In the whole frame, two frame columns 207 are respectively arranged at two sides, a first heating element 201 and a second heating element 202 which are parallel are arranged between the two frame columns 207, and the first heating element 201 and the second heating element 202 are respectively fixed on a heating plate mounting seat 208. The first heating element 201 and the second heating element 202 are used as the inlet and outlet and heating regions of the wiring harness, the first heating element 201 heats the heat shrinkage pipe of the wiring harness from the upper part, and the second heating element 202 heats the heat shrinkage pipe of the wiring harness from the lower part. Because high temperature is generated in the heating process, an air duct is arranged above the first heating element 201, and a fan is arranged on an air duct upper cover 216 at the top of the air duct for heat dissipation. The frame upright 207 is combined with the duct upper cover 216 to form a frame for fixing other components, and a guide seat 210 is fixed on the frame upright 207. The linear bearing 211 is fixed to the heating plate mount 208 and is slidable up and down on the guide shaft 210, so that the upper and lower heating plate mounts 208 secure a degree of freedom in the Z-axis direction to prevent deviation. The first nut 214 and the second nut 215 have opposite screw threads, the first nut 214 is a left-hand nut, and the second nut 215 is a right-hand nut. The right-hand nut and the left-hand nut are fixed to the respective heating plate mounting seats 208. And the lifting rod 213 is also a bidirectional screw rod which is threaded in the opposite direction to the right-handed nut and left-handed nut mounting positions. The bidirectional screw rod can be realized by tapping two sections of reverse threads outside the nut assembling position and also can be realized by adopting a screw rod with positive and negative teeth. The lifting rod 213 and the first nut 214 and the second nut 215 are respectively in threaded fit, so that under the rotation of the lifting rod 213, the first nut 214 and the second nut 215 are driven to synchronously move towards the middle or synchronously move towards two sides, and further the first heating element 201 and the second heating element 202 are driven to synchronously approach or synchronously move away from the to-be-heat-shrunk wire harness 103 fixed on the wire harness fixing mechanism 102. Therefore, the upper and lower heating plate mounting seats 208 can be adjusted to a smaller size L or a larger size L in the same direction, and the moving distances are kept equal. The fixing block 212 is installed on the upper cover 216 of the air duct for fixing the fixing block 212 to raise and lower the degree of freedom of the rotation of the screw Z axis, and after the center distance L between the upper and lower heating sources is adjusted, the fixing block 212 limits the degree of freedom of the rotation of the Z axis of the lifting rod 213. After the center distance L between the upper heating source and the lower heating source is fixed, the heating element cannot move in the moving process. The guide shaft 209 is disposed in parallel with the lifting rod 213, and can guide and limit the mounting seats 208 of the first heating element 201 and the second heating element 202.

To accommodate the apparatus frame shown in fig. 8, the position adjustment assembly may take the form of a lead screw drive. As shown in fig. 9, a movable screw 217 may be installed on the frame, and then a movable nut 218 may be fixed to a side of the first heating element 201, where the movable nut 218 is in threaded engagement with the movable screw 217, and when the movable screw 217 rotates, the movable nut 218 may be moved by the first heating element 201. The other side of the first heating element 201 can move synchronously through a sliding rail, and a set of moving nuts 218 and moving screws 217 can also be arranged to drive. The moving screw 217 can be rotated manually, in which case the quadrangular head a of the moving screw needs to protrude outside the frame. Of course, the moving screw 217 may be driven by a motor. Since the first heating element 201 and the second heating element 202 generally need to ensure synchronous movement, the second heating element 202 may be connected with the first heating element 201 by a rigid link, realize synchronous movement, or a driving assembly may be additionally provided.

Based on above-mentioned pencil pyrocondensation equipment, the utility model provides a pencil pyrocondensation processing method is further provided to the pencil that has two and treats pyrocondensation processing pyrocondensation pipe as the example shown in figure 1, and its course of working is specifically as follows:

s1: the harness fixing mechanism 102 is brought to an initial position outside the heat shrinkable tube heating mechanism 101 by the integral driving mechanism, i.e., the state shown in fig. 3 is maintained.

S2: the distance between the two groups of heating components inside the heat shrinkable tube heating mechanism 101 is adjusted through the position adjusting component, so that the distance is matched with the positions of the two heat shrinkable tubes on the wire harness 103 to be heat-shrunk. The position matching means that after the wire harness 103 to be heat-shrunk enters the heating area of the heat shrink tube heating mechanism 101, the two heat shrink tube positions on the wire harness 103 to be heat-shrunk can be located in the heating areas of the two groups of heating assemblies, so as to implement the heat shrinkage treatment on the heat shrink tube.

S3: firstly, sleeving a heat shrinkable tube on a target position of a wire harness 103 to be heat-shrunk in advance, then fixing the wire harness 103 to be heat-shrunk sleeved with the heat shrinkable tube on a wire harness fixing mechanism 102, driving the wire harness fixing mechanism 102 and a heat shrinkable tube heating mechanism 101 to move relatively through an integral driving mechanism, enabling the wire harness 103 to be heat-shrunk fixed on the wire harness fixing mechanism 102 to enter a heating area of the heat shrinkable tube heating mechanism 101, and enabling two heat shrinkable tube positions on the wire harness 103 to be heat-shrunk to be located in the heating areas of two groups of heating assemblies to form a state shown in fig. 4.

According to the requirement of the heat-shrinking process, before the wire harness 103 to be heat-shrunk enters the heat-shrinkable tube heating mechanism 101, the heating components in the heat-shrinkable tube heating mechanism 101 need to be preheated to the target temperature. During actual use, the working temperature and the thermal shrinkage time of each heating component can be set through the control interface of the heating plate, then the heating program of the heating components is started, each heating component starts to heat up, and after all the heating components reach the set temperature, the equipment can enter a working state. Therefore, the preheating process may be considered to be completed before the wire is loaded.

S4: after the heat-shrinkable wire harness 103 enters the preheated heat-shrinkable tube heating mechanism 101, two groups of heating assemblies in the heat-shrinkable tube heating mechanism 101 can perform heat-shrinkable treatment on two heat-shrinkable tubes on the heat-shrinkable wire harness 103 at the same time.

It should be noted that, in the heat-shrinking process in step S4, when the length of the heat-shrinkable tube on the wire harness 103 to be heat-shrunk is too large, and the heating assembly cannot complete the heat-shrinking process at one time, according to the foregoing, the adjusting assembly drives the heating assembly above the adjusting assembly to move along the extending direction of the wire harness 103 to be heat-shrunk, and the heating action position of the group of heating assemblies on the wire harness 103 to be heat-shrunk is continuously changed by means of heat scanning, so that the heat-shrinkable tube is completely heat-shrunk.

S5: after the thermal shrinkage treatment is finished, the wire harness fixing mechanism 102 and the thermal shrinkage tube heating mechanism 101 are driven to move oppositely through the integral driving mechanism again, so that the wire harness 103 to be subjected to thermal shrinkage moves out of the thermal shrinkage tube heating mechanism 101 and returns to the initial position, and the wire harness thermal shrinkage processing procedure is finished. And taking down the wire harness 103 to be heat-shrunk to complete the corresponding processing procedure.

It should be noted that if the distance between the upper and lower heating plates in the current heating assembly is not suitable for the size of the wire bundle 103 to be heat shrunk, the distance between the first heating element 201 and the second heating element 202 relative to the wire bundle 103 to be heat shrunk needs to be adjusted in advance by the distance adjusting assembly before step S3 is performed, so that the distance meets the requirement of the heat shrinking process. The specific distance value can be adjusted according to the set parameters of the process.

In addition, in the above embodiment, when there are a plurality of sets of heating elements, the temperature control is preferably independent of each other. Therefore, when there is a difference in the heat-shrinking processes of two different heat-shrinkable tubes, the respective heat-shrinking temperatures can be set according to the corresponding heat-shrinking processes. One of the upper heating element and the lower heating element can be selectively provided with a K-type thermocouple so as to detect the temperature of the heating element and realize feedback regulation.

In addition, in other embodiments, the above-described wire harness heat-shrinking device may also be used for heat-treating a wire harness having only one heat-shrinkable tube. Referring to fig. 10, only one of the heating elements needs to be turned on, and the other heating element can be kept in a turned-off state.

In the above embodiment, the multi-position synchronous heat shrinking integrated device with two stations is shown, but in other embodiments, the specific number of stations can be adjusted as required, and may be one or more. Each station should be provided with a wire harness heat shrinking device as described above. When a plurality of stations are provided, the control system can be unified or can be respectively independent. And components used for driving in the heat-shrinkable integrated device, such as a position adjusting component, a spacing adjusting component, an integral driving mechanism and the like, can be accessed into the control system to uniformly perform automatic control.

In the above embodiment, two sets of heating assemblies are provided in the wire harness heat-shrinking device in a single station, but in other embodiments, more heating assemblies may be provided according to the specific number of heat-shrinkable tubes on the wire harness, and the basic principle is the same.

The above-mentioned embodiments are merely a preferred embodiment of the present invention, but it is not intended to limit the present invention. Various changes and modifications can be made by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present invention. Therefore, all the technical schemes obtained by adopting the mode of equivalent replacement or equivalent transformation fall within the protection scope of the utility model.

Claims

1. The multi-position synchronous heat-shrinkable wire harness heat-shrinkable device is characterized by comprising a wire harness fixing mechanism (102), a heat-shrinkable tube heating mechanism (101) and an integral driving mechanism;

the wire harness fixing mechanism (102) is used for fixing a wire harness (103) to be heat-shrunk;

the integral driving mechanism is used for driving the wire harness fixing mechanism (102) and the heat shrinkable tube heating mechanism (101) to move relatively, so that a wire harness (103) to be heat-shrunk, which is fixed on the wire harness fixing mechanism (102), enters and exits a heating area of the heat shrinkable tube heating mechanism (101);

the heat shrinkable tube heating mechanism (101) is internally provided with at least two groups of heating assemblies which are arranged at intervals along the extension direction of the wire harness (103) to be heat-shrunk, so that the heating action positions of different heating assemblies on the wire harness (103) to be heat-shrunk are different; at least one group of heating assemblies is provided with a position adjusting assembly, and the position adjusting assembly is used for driving the group of heating assemblies to move relative to other heating assemblies along the extending direction of the wire harness (103) to be heat-shrunk so as to independently change the heating action position of the group of heating assemblies on the wire harness (103) to be heat-shrunk.

2. The multi-position synchronized heat-shrinkable harness heat-shrinking apparatus according to claim 1, wherein each group of heating assemblies comprises a first heating element (201) and a second heating element (202) respectively disposed on both sides of the harness (103) to be heat-shrunk for bi-directionally heat-shrinking the heat-shrinkable tubes on the harness (103) to be heat-shrunk.

3. The multi-position synchronized heat-shrinkable strand heat-shrinking apparatus of claim 2, wherein at least one of said groups of heating assemblies is provided with a spacing adjustment assembly for adjusting the distance of the first heating element (201) and the second heating element (202) relative to the strand (103) to be heat-shrunk; the temperature of each group of heating components is independently controlled.

4. The multi-position synchronized heat shrinkable harness heat shrinkable device of claim 3, wherein said spacing adjustment assembly comprises a first nut (214), a second nut (215), a lifter bar (213), and a guide shaft (209); the first nut (214) and the second nut (215) are respectively arranged on the mounting seats (208) of the first heating element (201) and the second heating element (202); the screw thread turning directions of the first nut (214) and the second nut (215) are opposite, the lifting rod (213) is a bidirectional screw rod, the lifting rod (213) and the first nut (214) and the second nut (215) respectively form screw thread fit, and the lifting rod is used for driving the first heating element (201) and the second heating element (202) to synchronously approach or synchronously depart from a wire harness (103) to be heat-shrunk fixed on the wire harness fixing mechanism (102); the guide shaft (209) is arranged in parallel with the lifting rod (213) and used for guiding and limiting the mounting seats (208) of the first heating element (201) and the second heating element (202).

5. The multi-position simultaneous heat-shrinking strand heat-shrinking apparatus according to claim 2, wherein said first heating element (201) and said second heating element (202) are heating plates, which are respectively located above and below the strand (103) to be heat-shrunk.

6. The multi-position synchronous heat-shrinkable harness heat-shrinking apparatus according to claim 1, wherein said harness holding means (102) is provided with a plurality of side-by-side holders for simultaneously holding a plurality of side-by-side harnesses (103) to be heat-shrunk; and a heating area of a heating assembly in the heat shrinkable tube heating mechanism (101) is simultaneously covered with a plurality of wire harnesses (103) to be heat-shrunk.

7. The multi-position synchronized heat-shrinkable harness heat-shrinking apparatus according to claim 1, wherein said heating assemblies are provided in two sets, one set being relatively fixed to the frame of the heat-shrinkable tube heating mechanism (101), the other set being slidable relative to the frame by said position adjusting assembly, the two sets being respectively adapted to heat two heat-shrinkable tubes of the harness (103) to be heat-shrunk.

8. The multi-position synchronized heat-shrinkable strand heat-shrinking apparatus of claim 1, wherein said position adjustment assembly provides a range of adjustment of said heating assembly that satisfies: the scanning range of the heating area of the adjusted heating assembly in the adjusting process covers the span range of the heated heat shrinkable tube on the wire harness (103) to be heat shrunk.

9. The multi-position simultaneous heat-shrinking wire harness heat-shrinking device according to claim 1, wherein the wire harness fixing mechanism (102) is fixed in position, and the heat shrink tube heating mechanism (101) is moved relative to the wire harness fixing mechanism (102) by an integral driving mechanism.

10. A multi-position synchronous thermal shrinkage integrated device, which comprises one or more stations, wherein each station is provided with the wire harness thermal shrinkage equipment according to any one of claims 1 to 9.