CN203317451U - A cutting tool for heat-shrinkable tube of busbar after shrinkage - Google Patents

Abstract

A tool for cutting a contracted female heat-shrinkable tube comprises a tool main body, an upper cutting module and a lower cutting module; the upper part of the tool main body is provided with an upper module accommodating groove and a lower module accommodating groove; the upper cutting module is fixedly arranged in the upper module accommodating groove and comprises two upper limiting guide rails, an adjusting bolt mounting plate, an upper tool rest base, two adjusting bolts, an upper tool rest, an upper cutting tool, an upper tool rest gland and two upper cam bearing followers; the lower cutting module is fixedly arranged in the lower module accommodating groove and comprises two lower limiting guide rails, a spring plunger mounting plate, a lower tool rest base, a plurality of spring plungers, a lower tool rest, a lower cutting knife, a lower tool rest gland and two lower cam bearing followers; the tool not only can ensure that the length of the cut heat-shrinkable sleeve is stable, the cut section is smooth and flat, and no step or bevel exists, but also can effectively avoid the cutting injury to the busbar when the working efficiency is improved.

Description

A cutting tool for heat-shrinkable tube of busbar after shrinkage

technical field

The utility model relates to a cutting tool for shrinkable heat-shrinkable tubes in the heat-shrinkable tube industry. While working efficiently, it can effectively avoid cutting the busbar.

Background technique

At present, the known cutting tools of the shrunk busbar heat-shrinkable tubes in the heat-shrinkable tube industry use traditional paper cutters for cutting. When cutting, the heat-shrinkable tube is still wrapped on the busbar, and the busbar is generally a copper bar made of metallic copper material.

The disadvantages of this method are: manual cutting by workers, resulting in unstable cutting length of the heat shrinkable tube, rough cut section, steps and oblique cuts, cuts to the busbar, cutting quality cannot be guaranteed, and cutting efficiency is low , More importantly, it is impossible to effectively control the force of the operator when cutting the busbar, which may easily cause the knife to break and harm the personal safety of the operator.

Utility model content

The technical problem to be solved by the utility model is: to overcome the instability of the length of the cutting tool for the heat-shrinkable tube of the busbar after shrinkage, the rough section of the cut, the step and the bevel of the cut, the easy cutting of the busbar, the low cutting efficiency and the Insufficient in terms of personal injury, etc., provide a cutting tool that can cut both sides of the busbar at one time. This cutting tool can not only make the length of the heat shrinkable tube of the busbar stable, the cut section is smooth, there are no steps and bevels, and the heat of the busbar is improved. The cutting quality of the shrink tube can be improved, and the cutting efficiency can be effectively improved, the copper bar can be prevented from being cut, and the safety factor of the operator can be improved.

In order to solve the above-mentioned technical problems, the utility model proposes the following technical solutions: a cutting tool for heat-shrinkable tubes of post-shrinkage busbars, which includes a tool body, an upper cutting module, and a lower cutting module;

The upper part of the tool main body is provided with an upper fixed plate, the lower part of the tool main body is provided with a lower fixed plate, the front of the upper fixed plate is dug with an upper module slot, and the front of the lower fixed plate is dug with a lower a module slot, the lower module slot is located below the upper module slot, and a limit pin is arranged on the lower fixing plate;

The upper cutting module is installed in the upper module slot, which includes two upper limit guide rails, an adjusting bolt mounting plate, an upper knife rest base, two adjusting bolts, an upper knife rest, and an upper cutting knife , One upper tool holder gland, two upper cam bearing followers;

The two upper limit guide rails are respectively installed and fixed on the left end and the right end of the upper module container, and a guide chute is provided on the side of the upper limit guide rail, and the two guide chute are in opposite positions;

The adjusting bolt mounting plate is installed and fixed on the top of the tool body and is located between the two upper limit guide rails, and two threaded holes are opened through the upper and lower surfaces of the adjusting bolt mounting plate;

The left and right sides of the upper knife rest base are each protrudingly provided with a guide slider, and the two guide sliders slide into the two guide chute correspondingly, so that the upper knife rest base Slide up and down between the guide rails;

The upper knife rest base includes a front side, an upper knife rest chute is opened on the front side, and a screw connection hole is opened on the top surface of the upper knife rest base;

The left and right ends of the lower part of the upper knife rest base are each provided with a through hole, and the two through holes are respectively located on both sides of the upper knife rest chute;

One of the adjusting bolts passes through a threaded hole of the adjusting bolt mounting plate and is further locked into the threading hole on the top surface of the upper tool rest base, and the other adjusting bolt passes through another threaded hole of the adjusting bolt mounting plate. Butt against the top surface of the upper knife rest base after connecting the hole;

The upper knife rest is installed in the upper knife rest chute and can slide in the upper knife rest chute. The inside of the upper knife rest is provided with a cutting knife slot, and the upper cutting knife is inserted and fixed on the upper knife rest. in the cutter slot;

The upper knife rest gland is installed and fixed on the front side of the upper knife rest base and covers the upper knife rest;

The two upper cam bearing followers are respectively installed in the two through holes of the upper tool rest base and rotate therein, and the two upper cam bearing followers are respectively located on both sides of the upper tool rest chute;

The lower cutting module is installed in the lower module slot, which includes two lower limit guide rails, a spring plunger mounting plate, a lower knife rest base, several spring plungers, a lower knife rest, a lower cutting knife, One lower tool holder gland, two lower cam bearing followers;

The two lower limit guide rails are installed and fixed on the left end and the right end of the lower module container respectively, and a guide chute is opened on the side of the lower limit guide rail, and the two guide chute are in opposite positions;

The spring plunger mounting plate is installed and fixed on the bottom of the tool body and is located between the two lower limit guide rails, and several perforations are opened through the upper and lower surfaces of the spring plunger mounting plate;

The left and right sides of the lower tool rest base are respectively provided with a guide slider, and the two guide sliders are correspondingly slid into the guide chute of the two lower limit guide rails, so that the lower tool rest base sliding up and down between the two lower limit guide rails;

The lower knife rest base includes a front side, and a lower knife rest chute is opened on the front side;

A limit hole is opened on the front side of the lower tool rest base, and the limit pin of the lower fixing plate is correspondingly snapped into the limit hole;

The left and right ends of the upper part of the lower knife rest base are respectively provided with a through hole, and the two through holes are respectively located on both sides of the lower knife rest chute;

The plurality of spring plungers pass through the plurality of perforations of the spring plunger mounting plate and directly abut on the bottom surface of the lower tool rest base;

The lower knife rest is installed in the lower knife rest chute and can slide in the lower knife rest chute, the inside of the lower knife rest is provided with a cutting knife slot, and the lower cutting knife is inserted and fixed in the in the cutter slot;

The lower knife rest gland is mounted and fixed on the front side of the lower knife rest base and covers the lower knife rest;

The two lower cam bearing followers are respectively installed in the two through holes of the lower tool rest base and rotate therein, and the two lower cam bearing followers are respectively located on both sides of the lower tool rest chute.

The further limitation of the above technical solution is that the upper knife rest chute is inclined from the upper right corner to the lower left corner on the front side of the upper knife rest base, and the lower knife rest chute is inclined from the upper left corner on the front side of the lower knife rest base. Tilt to the bottom right.

A further limitation of the above technical solution is that the inclination angle of the upper tool holder chute and the lower tool holder chute is 60 degrees.

The further limitation of the above technical solution is that the upper knife rest cover includes a front side, and several screw holes are opened on the front side; the upper cutting module also includes an upper stroke adjustment block, and the upper stroke adjustment block includes a A fixed piece and a resisting piece, the fixed piece is L-shaped after being perpendicular to the resisting piece, a fixed through hole is opened on the fixed piece, and a fine-tuning screw hole is opened on the resisting piece; a screw passes through the upper stroke adjustment block After being screwed into a certain screw hole on the front side of the upper knife rest gland, the upper stroke adjustment block can be fixedly installed on the front side of the upper knife rest gland after tightening; A screw is screwed into the fine-tuning screw hole of the upper stroke adjustment block, and the screw is screwed in and out to adjust the position of the upper knife rest and the upper cutting knife.

The further limitation of the above technical solution is that the lower knife rest cover includes a front side, and several screw holes are opened on the front side; the lower cutting module also includes a lower stroke adjustment block, and the lower stroke adjustment block includes a fixed A piece and a resisting piece, the fixing piece is L-shaped after being perpendicular to the resisting piece, a fixing through hole is opened on the fixing piece, a fine-tuning screw hole is opened on the resisting piece; a screw passes through the lower travel adjustment block After fixing the through hole, screw it into a certain screw hole on the front side of the lower knife rest gland, and after tightening, the lower stroke adjustment block can be fixedly installed on the front side of the lower knife rest gland; A screw is screwed into the fine-tuning screw hole of the lower travel adjustment block, and the position of the lower knife rest and the lower cutting knife is adjusted by screwing in and out of the screw.

A further limitation of the above technical solution is that the shrunken busbar heat shrink tube cutting tool also includes a slide rail, a slide plate, two slide rail cover plates, a clamping positioning plate, and a positioning limiting plate;

The slide rail is installed on the back of the upper fixing plate, and the slide rail includes a back plate, two mounting ribs extending vertically backward from the upper and lower ends of the back plate, and the back plate and the two mounting ribs are surrounded to form a a chute;

The slide plate includes a slider and a guide rod, the upper surface and the lower surface of the slider are respectively provided with a groove, and the guide rod perpendicularly intersects with the slider;

The two slide rail cover plates are respectively fixedly installed on the two mounting ribs of the slide rail and snapped into the two grooves of the slide block respectively, so that the slide block is installed between the slide rail and the slide rail cover plate During the period, the slider slides left and right in the chute of the slide rail;

The clamping positioning plate includes a column, a slide plate clamping part clamped on the guide rod, and a busbar clamping part;

The positioning and limiting plate is fixedly installed on the back of the busbar clamping part.

The further limitation of the above technical solution is that the slide plate clamping part includes an L-shaped first clamping arm and an L-shaped second clamping arm; the first clamping arm is vertically extended from the column; the second clamping arm Vertically extending from the column and located below the first card arm; a perforation is formed between the first card slot and the second card slot, which can be inserted into the guide rod of the slide plate, and the clamping positioning plate Can move forward and backward along the guide rod;

The busbar clamping portion includes an L-shaped first clamping arm and an L-shaped second clamping arm, the first clamping arm is formed by vertically extending from the column; the second clamping arm is formed from the column extending vertically and located below the first clamping arm;

An accommodating groove is enclosed between the positioning limiting plate and the first clamping arm and the second clamping arm.

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

1. According to the thickness of busbars of different specifications, the upper cam bearing follower installed on the upper tool holder base and the lower cam bearing follower on the lower tool holder base can be adjusted by adjusting the adjusting bolt and spring plunger They are all tangent to the outer wall of the heat-shrinkable tube. After adjustment, lock the adjusting bolt. At the same time, adjust the cutting depth of the upper and lower cutters according to the thickness of the heat-shrinkable tubes of different specifications, so as to ensure that the Cut through the busbar heat shrink tubing without cutting the busbar.

2. The operation is convenient and simple, and the labor load is small.

3. The design of the spring plunger and the limit pin enables the lower cutting module to elastically deform when encountering uneven shrinkage of the heat-shrinkable tube and causing uneven thickness, so as to ensure that the heat-shrinkable tube is not cut while cutting through it. busbar.

4. The length of the heat-shrinkable sleeve after cutting is stable, the cut section is smooth, and there are no steps and bevels, which can effectively avoid cutting the copper bar, improve cutting efficiency, and effectively reduce the damage to the operator due to the breakage of the cutting knife. personal injury.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the heat-shrinkable tube cutting tool for busbars of the utility model after shrinkage.

Fig. 2 is another three-dimensional exploded view of the heat-shrinkable tube cutting tool for busbars of the utility model after shrinkage.

Fig. 3 is a three-dimensional combined view of the heat-shrinkable tube cutting tool for busbars of the utility model after shrinkage.

Fig. 4 is a side view of the tool for cutting the heat-shrinkable tube of the busbar after shrinkage of the utility model.

Fig. 5 is a three-dimensional exploded view of the upper cutting module of the present invention.

Fig. 6 is a three-dimensional exploded view of the lower cutting module of the present invention.

Fig. 7 is a three-dimensional combined view of the upper cutting module and the lower cutting module of the present invention.

Detailed ways

Please refer to FIG. 1 to FIG. 7 , a heat-shrinkable tube cutting tool for the shrunk busbar, which is used to cut the shrunk heat-shrinkable tube (not shown) wrapped on the busbar (not shown).

The shrunk heat-shrinkable tube cutting tool for busbars includes a tool body 1, an upper cutting module 2, a lower cutting module 3, a slide rail 4, a slide plate 5, two slide rail cover plates 6, and a clamping positioning plate 7, a positioning limit plate 8.

The tool main body 1 is an L-shaped plate as a whole, the left side of which is a handle 12 held by the operator, and the upper part of the right side is extended to the right with a strip-shaped upper fixing plate 14. The lower part of the right side extends to the right and is provided with a strip-shaped lower fixing plate 16 .

Between the upper fixing plate 14 and the lower fixing plate 16 is defined a linear busbar accommodation groove 18 . When cutting the heat-shrinkable tube of the busbar, the busbar and the heat-shrinkable tube are in the groove 18 of the busbar.

The right end of the front of the upper fixing plate 14 is dug with a rectangular upper module accommodation slot 142 .

The right end of the front surface of the lower fixing plate 16 is dug with a rectangular lower module accommodation slot 162 , and the lower module accommodation slot 162 is located below the upper module accommodation slot 142 . A limiting pin 164 is disposed on the lower fixing plate 16 .

The upper cutting module 2 is installed in the upper module slot 142 at the right end of the upper fixing plate 14, which includes two upper limit guide rails 202, an adjusting bolt mounting plate 204, an upper knife rest base 206, two adjusting Bolt 208, an upper knife rest 210, an upper cutting knife 212, an upper knife rest gland 214, an upper stroke adjustment block 216, two upper cam bearing followers 218.

The two upper limit guide rails 202 are installed and fixed on the left end and the right end of the upper module cavity 142 of the tool body 1 respectively.

A guide chute 2022 is defined on a side surface of the upper limit guide rail 202 . After the two upper limit guide rails 202 are installed on the tool main body 1, the two guide slide grooves 2022 are in opposite positions.

The adjusting bolt mounting plate 204 is fixed on the top of the tool body 1 and located between the two upper limit guide rails 202 .

Two threaded holes (not shown) are opened through the upper and lower surfaces of the adjusting bolt mounting plate 204 .

The upper tool rest base 206 is in the shape of a cuboid as a whole, and a guide slider 2062 protrudes from its left and right sides. The two guide sliders 2062 slide into the two guide slide grooves 2022 correspondingly, so that the upper knife rest base 206 can slide up and down between the two upper limit guide rails 202 .

The upper tool holder base 206 includes a front side 2064, and the front side 2064 is provided with a linear upper tool holder sliding slot 2066 inclined at an angle of 60° from the upper right corner to the lower left corner.

A through hole 2068 is respectively opened at the left and right ends of the lower part of the upper tool rest base 206 . The two through holes 2068 are respectively located on two sides of the upper tool holder sliding slot 2066 .

A threaded hole (not shown) is opened on the top surface of the upper tool rest base 206 .

One of the adjusting bolts 208 passes through a threaded hole of the adjusting bolt mounting plate 204 and is further locked into the threaded hole on the top surface of the upper tool rest base 206 . Another adjusting bolt 208 passes through another threaded hole of the adjusting bolt mounting plate 204 and its bottom end abuts against the top surface of the upper knife rest base 206 . The two adjusting bolts 208 form a pulling force and a pressure on the upper knife rest base 206 to ensure the limit and positioning of the upper knife rest base 206 .

The upper knife rest 210 is installed in the upper knife rest chute 2066 of the upper knife rest base 206 and can slide in the upper knife rest chute 2066 .

A cutting knife slot 2102 is disposed inside the upper knife frame 210 .

The upper cutting knife 212 is inserted and fixed in the cutting knife slot 2102 . The upper cutting knife 212 can slide in the upper knife holder chute 2066 together with the upper knife holder 210 .

The upper knife rest cover 214 is mounted on the front side 2064 of the upper knife rest base 206 and covers the upper knife rest 210 to prevent the upper knife rest 210 from falling off from the upper knife rest chute 2066 .

The upper tool holder cover 214 includes a front side 2142 , and two screw holes 2144 are defined on the front side 2142 .

The upstroke adjusting block 216 includes a fixing piece 2162 and a resisting piece 2164 , the fixing piece 2162 and the resisting piece 2164 are perpendicular to each other and form an L shape.

The fixing piece 2162 is provided with a long fixing through hole 21622 , and the resisting piece 2164 is provided with a fine-tuning screw hole 21624 .

Use a screw (not shown) to pass through the fixed through hole 21622 of the upper stroke adjustment block 216 and then screw it into a certain screw hole 2144 on the front side 2142 of the upper knife holder gland 214, and then tighten it. The upper stroke adjusting block 216 is fixedly mounted on the front side 2142 of the upper tool rest cover 214 .

Use another screw (not shown) to be screwed into the fine-tuning screw hole 21624 of the upstroke adjusting block 216. When the upper cutting knife 212 cuts the heat-shrinkable tube (not shown in the figure) (the position of the heat-shrinkable tube is located between the upper cutting knife 212 and the lower cutting knife to be introduced later, the upper and lower sides are cut at the same time) , the rear portion of the upper knife rest 210 interferes with the screw, and by screwing in and out of the screw, the position of the upper knife rest 210 and the upper cutting knife 212 can be adjusted, thereby adjusting the cutting depth of the upper cutting knife 212 Make minor adjustments.

The two upper cam bearing followers 218 are respectively installed in the two through holes 2068 of the upper tool rest base 206 and can rotate therein. Because the two through holes 2068 are respectively located on both sides of the upper tool rest chute 2066 , the two upper cam bearing followers 218 are respectively located on both sides of the upper tool rest chute 2066 .

The two upper cam bearing followers 218 are located on the left and right sides of the upper cutting knife 212. This design can not only play a guiding role when cutting, but also ensure the overall shape of the upper cutting knife 212 when cutting. The constant cutting depth and cutting force, and the rolling friction formed by the upper cam bearing follower 218 and the heat shrink tube (not shown) during cutting can effectively reduce the labor intensity of workers.

The lower cutting module 3 is installed in the lower module slot 162 at the right end of the lower fixing plate 16, which includes two lower limit guide rails 302, a spring plunger mounting plate 304, a lower knife rest base 306, and three springs. Plunger 308, lower knife rest 310, lower cutting knife 312, lower knife rest gland 314, lower stroke adjustment block 316, two lower cam bearing followers 318.

The two lower limit guide rails 302 are respectively installed and fixed on the left end and the right end of the lower module cavity 162 of the tool body 1 .

A side surface of the lower limit guide rail 302 defines a guiding slide groove 3022 . After the two lower limit guide rails 302 are installed on the tool body 1 , the two guide slide grooves 3022 are in opposite positions.

The spring plunger mounting plate 304 is fixed on the bottom of the tool body 1 and located between the two lower limit guide rails 302 .

Three through holes (not shown) are opened through the upper and lower surfaces of the spring plunger mounting plate 304 .

The lower knife rest base 306 is in the shape of a cuboid as a whole, and a guide slider 3062 protrudes from its left and right sides. The two guide sliders 3062 slide into the two guide slots 3022 correspondingly, so that the lower tool rest base 306 can slide up and down between the two lower limit guide rails 302 .

The lower tool holder base 306 includes a front side 3064, on which a straight lower tool holder sliding groove 3066 is opened at an angle of 60° from the upper left corner to the lower right corner.

A through hole 3068 is respectively opened at the left and right ends of the upper part of the lower knife rest base 306 . The two through holes 3068 are respectively located on two sides of the lower tool holder sliding groove 3066 .

A limiting hole 3070 is defined on the front side 3064 of the lower tool rest base 306 . The limiting pin 164 of the lower fixing plate 16 is correspondingly engaged in the limiting hole 3070 .

The three spring plungers 308 pass through the three holes of the spring plunger mounting plate 304 and directly abut on the bottom surface of the lower tool rest base 306 . The three spring plungers 308 push up the lower knife rest base 306, and the limit pin 164 restricts the lower knife rest base 306 so that it will not move upward without restriction, ensuring that the heat shrinkable tube (Fig. (not shown) When the wall thickness is uneven after shrinkage, the lower cutting module 3 can also undergo a certain elastic displacement accordingly, so as to prevent the lower cutting knife 312 from scratching the busbar.

The lower knife rest 310 is installed in the lower knife rest chute 3066 of the lower knife rest base 306 and can slide in the lower knife rest chute 3066 .

A cutting knife slot 3102 is disposed inside the lower knife frame 310 .

The lower cutting knife 312 is inserted and fixed in the cutting knife slot 3102 . The lower cutting knife 312 can slide in the lower knife holder chute 3066 together with the lower knife holder 310 .

The lower knife rest cover 314 is mounted on the front side 3064 of the lower knife rest base 306 and covers the lower knife rest 310 to prevent the lower knife rest 310 from falling off from the lower knife rest chute 3066 .

The lower tool holder cover 314 includes a front side 3142 , and two screw holes 3144 are defined on the front side 3142 .

The lower stroke adjusting block 316 includes a fixing piece 3162 and a resisting piece 3164 , the fixing piece 3162 and the resisting piece 3164 are perpendicular to each other and form an L shape.

The fixing piece 3162 is provided with a long fixing through hole 31622 , and the resisting piece 3164 is provided with a fine-tuning screw hole 31624 .

Use a screw (not shown) to pass through the fixed through hole 31622 of the lower stroke adjustment block 316 and then screw it into a certain screw hole 3144 on the front side 3142 of the lower knife holder gland 314, and then tighten it to The lower stroke regulating block 316 is fixedly installed on the front side 3142 of the lower tool rest cover 314 .

Screw another screw (not shown) into the fine-tuning screw hole 31624 of the lower travel adjustment block 316. When the lower cutting knife 312 cuts the heat-shrinkable tube (not shown in the figure) (when cutting, the heat-shrinkable tube is cut between the upper cutting knife 312 and the upper cutting knife 212 at the same time up and down), The rear portion of the lower knife rest 310 interferes with the screw, and by screwing in and out of the screw, the positions of the lower knife rest 310 and the lower cutting knife 312 can be adjusted, thereby adjusting the cutting depth of the lower cutting knife 312 fine-tuning.

The two lower cam bearing followers 318 are respectively installed in the two through holes 3068 of the lower tool rest base 306 and can rotate therein. Because the two through holes 3068 are respectively located on both sides of the lower tool rest chute 3066 , so the two lower cam bearing followers 318 are respectively located on both sides of the lower tool rest chute 3066 .

The two lower cam bearing followers 318 are located on the left and right sides of the lower cutting knife 312. This design can not only play a guiding role in cutting, but also ensure the overall shape of the lower cutting knife 312 when cutting. The constant cutting depth and cutting force, and the rolling friction formed by the lower cam bearing follower 318 and the heat shrinkable tube (not shown) during cutting can effectively reduce the labor intensity of workers.

The slide rail 4 is mounted on the back of the upper fixing plate 14 . The slide rail 4 includes a backboard 42 and two mounting ribs 44 vertically extending backward from upper and lower ends of the backboard 42 .

A sliding slot 46 is formed around the back plate 42 and the two mounting ribs 44 .

The slide plate 5 includes a slider 52 and a guide rod 54 .

A groove 522 is respectively defined on the upper surface and the lower surface of the slider 52 .

The guide rod 54 perpendicularly intersects the slider 52 . The guide rod 54 is engraved with a scale marking the length.

The two slide rail cover plates 6 are respectively fixedly installed on the two mounting ribs 44 of the slide rail 4 .

The slide rail cover plate 6 installed on the top snaps into the groove 522 on the upper surface of the slider 52, and the slide rail cover plate 6 installed on the bottom snaps into the groove 522 on the lower surface of the slider 52, so that The slide block 52 is installed between the slide rail 4 and the slide rail cover plate 6, and can also slide left and right in the slide groove 46 of the slide rail 4. When the slide block 52 continues to move left or right all the time, the slide plate 5 will disengage from the chute 46 .

The clamping and positioning plate 7 includes a column 72 , a slide plate clamping portion 74 clamped on the guide rod 54 , and a busbar clamping portion 76 .

The slide plate clamping portion 74 includes an L-shaped first locking arm 742 and an L-shaped second locking arm 744 .

The first locking arm 742 is vertically extended from the column 72 .

The second locking arm 744 vertically extends from the column 72 and is located below the first locking arm 742 .

A cuboid-shaped perforation 746 is enclosed between the first slot 742 and the second slot 744 , which can be inserted into the guide rod 54 of the slide plate 5 , and the clamping positioning plate 7 can move forward and backward along the guide rod 54 .

The busbar clamping portion 76 includes an L-shaped first clamping arm 762 and an L-shaped second clamping arm 764 .

The first clamping arm 762 is vertically extended from the column 72 .

The second clamping arm 764 vertically extends from the column 72 and is located below the first clamping arm 762 .

The positioning limiting plate 8 is fixedly installed on the back of the busbar clamping part 76 of the clamping positioning plate 7, and the positioning limiting plate 8 is surrounded by the first clamping arm 762 and the second clamping arm 764. A cuboid-shaped receiving groove (not numbered) is formed.

The busbars (not shown) wrapped with heat-shrinkable tubes are clamped in the accommodating slots.

The positioning and limiting plate 8 can also conveniently complete the positioning and limiting of the busbar.

During work, the clamping positioning plate 7 can be fixed tightly with the slide plate 5, so that the sliding plate 5, two slide rail cover plates 6, the clamping positioning plate 7, and the positioning limit plate 8 become a whole, while the tool body 1, the upper The cutting module 2 , the lower cutting module 3 , and the slide rail 4 form another whole. When the slide plate 5 slides relatively in the chute 46 of the slide rail 4 , the relative motion of the two wholes is formed. The operator holds the clamping positioning plate 7 with one hand, and the handle 12 of the tool body 1 with the other hand, aligns the slide rail 4 with the slide groove 46 of the slide plate 5, and can easily complete the two-way alignment of the heat shrinkable tube of the busbar from top to bottom. Simultaneous cutting of the sides.

Different series of busbars may have different thicknesses and heat-shrinkable tubes. Before use, the tools should be adjusted according to the size differences of different series of products:

1. Use the clamping positioning plate 7 to clamp and position the busbar, and then adjust the adjusting bolt 208 and the spring plunger 308 according to the thickness of the heat shrinkable tube of the busbar, so that the upper cam installed on the upper tool holder base 206 of the tool body 1 Both the bearing follower 218 and the lower cam bearing follower 318 on the lower tool holder base 306 are tangent to the outer wall of the heat shrink tubing;

2. Adjust the upper stroke adjustment block 216 and the lower stroke adjustment block 316 according to the thickness of the heat shrinkable tube, so that the depth of the upper cutting knife 212 and the lower cutting knife 312 is appropriate;

3. Adjust the relative position between the clamping positioning plate 7 and the slide plate 5 according to the required cutting length, and determine the distance between the clamping positioning plate 7 and the upper cutting knife 212 and the lower cutting knife 312;

4. After the adjustment, the operator holds the clamping positioning plate 7 with one hand and the handle 12 of the tool body 1 with the other hand, and aligns the slide rail 4 with the chute 46 of the slide plate 5. From top to bottom, the alignment can be easily completed. Simultaneous cutting of both sides of the busbar heat shrink tube.

The beneficial effects of the utility model are:

1. According to the thickness of busbars of different specifications, the upper cam bearing follower 218 installed on the upper tool rest base 206 and the lower cam bearing follower 218 on the lower tool rest base 306 can The cam bearing followers 318 are all tangent to the outer wall of the heat-shrinkable tube. After adjustment, lock the adjusting bolt 208. The cutting depth can be adjusted to ensure that the busbar is not cut while cutting through the heat shrinkable tube of the busbar.

2. The operation is convenient and simple, and the labor load is small.

3. The design of the spring plunger 308 and the limit pin 3070 enables the lower cutting module 3 to elastically deform correspondingly when encountering uneven shrinkage of the heat-shrinkable tube and resulting in uneven thickness, so as to ensure that the heat-shrinkable tube is cut through at the same time Do not cut the busbar.

4. The length of the heat-shrinkable sleeve after cutting is stable, the cut section is smooth, and there are no steps and bevels, which can effectively avoid cutting the copper bar, improve cutting efficiency, and effectively reduce the damage to the operator due to the breakage of the cutting knife. personal injury.

Claims (7)

1. A cutting tool for heat-shrinkable tubes of busbars after shrinkage, characterized in that it comprises a tool body, an upper cutting module, and a lower cutting module; The upper part of the tool main body is provided with an upper fixed plate, the lower part of the tool main body is provided with a lower fixed plate, the front of the upper fixed plate is dug with an upper module slot, and the front of the lower fixed plate is dug with a lower a module slot, the lower module slot is located below the upper module slot, and a limit pin is arranged on the lower fixing plate; The upper cutting module is installed in the upper module slot, which includes two upper limit guide rails, an adjusting bolt mounting plate, an upper knife rest base, two adjusting bolts, an upper knife rest, and an upper cutting knife , One upper tool holder gland, two upper cam bearing followers; The two upper limit guide rails are respectively installed and fixed on the left end and the right end of the upper module container, and a guide chute is provided on the side of the upper limit guide rail, and the two guide chute are in opposite positions; The adjusting bolt mounting plate is installed and fixed on the top of the tool body and is located between the two upper limit guide rails, and two threaded holes are opened through the upper and lower surfaces of the adjusting bolt mounting plate; The left and right sides of the upper knife rest base are each protrudingly provided with a guide slider, and the two guide sliders slide into the two guide chute correspondingly, so that the upper knife rest base Slide up and down between the guide rails; The upper knife rest base includes a front side, an upper knife rest chute is opened on the front side, and a screw connection hole is opened on the top surface of the upper knife rest base; The left and right ends of the lower part of the upper knife rest base are each provided with a through hole, and the two through holes are respectively located on both sides of the upper knife rest chute; One of the adjusting bolts passes through a threaded hole of the adjusting bolt mounting plate and is further locked into the threading hole on the top surface of the upper tool rest base, and the other adjusting bolt passes through another threaded hole of the adjusting bolt mounting plate. Butt against the top surface of the upper knife rest base after connecting the hole; The upper knife rest is installed in the upper knife rest chute and can slide in the upper knife rest chute. The inside of the upper knife rest is provided with a cutting knife slot, and the upper cutting knife is inserted and fixed on the upper knife rest. in the cutter slot; The upper knife rest gland is installed and fixed on the front side of the upper knife rest base and covers the upper knife rest; The two upper cam bearing followers are respectively installed in the two through holes of the upper tool rest base and rotate therein, and the two upper cam bearing followers are respectively located on both sides of the upper tool rest chute; The lower cutting module is installed in the lower module slot, which includes two lower limit guide rails, a spring plunger mounting plate, a lower knife rest base, several spring plungers, a lower knife rest, a lower cutting knife, One lower tool holder gland, two lower cam bearing followers; The two lower limit guide rails are installed and fixed on the left end and the right end of the lower module container respectively, and a guide chute is opened on the side of the lower limit guide rail, and the two guide chute are in opposite positions; The spring plunger mounting plate is installed and fixed on the bottom of the tool body and is located between the two lower limit guide rails, and several perforations are opened through the upper and lower surfaces of the spring plunger mounting plate; The left and right sides of the lower tool rest base are respectively provided with a guide slider, and the two guide sliders are correspondingly slid into the guide chute of the two lower limit guide rails, so that the lower tool rest base sliding up and down between the two lower limit guide rails; The lower knife rest base includes a front side, and a lower knife rest chute is opened on the front side; A limit hole is opened on the front side of the lower tool rest base, and the limit pin of the lower fixing plate is correspondingly snapped into the limit hole; The left and right ends of the upper part of the lower knife rest base are respectively provided with a through hole, and the two through holes are respectively located on both sides of the lower knife rest chute; The plurality of spring plungers pass through the plurality of perforations of the spring plunger mounting plate and directly abut on the bottom surface of the lower tool rest base; The lower knife rest is installed in the lower knife rest chute and can slide in the lower knife rest chute, the inside of the lower knife rest is provided with a cutting knife slot, and the lower cutting knife is inserted and fixed in the in the cutter slot; The lower knife rest gland is mounted and fixed on the front side of the lower knife rest base and covers the lower knife rest; The two lower cam bearing followers are respectively installed in the two through holes of the lower tool rest base and rotate therein, and the two lower cam bearing followers are respectively located on both sides of the lower tool rest chute. 2. The heat-shrinkable tube cutting tool for the shrunk rear busbar according to claim 1, wherein the upper knife rest chute is inclined from the upper right corner to the lower left corner on the front side of the upper knife rest base, and the lower knife The rack chute slopes from the upper left corner to the lower right corner on the front side of the lower tool holder base. 3 . The heat shrinkable tube cutting tool for the shrunk busbar according to claim 2 , wherein an inclination angle between the upper tool holder chute and the lower tool holder chute is 60 degrees. 4 . 4. The heat-shrinkable tube cutting tool for busbars after shrinkage according to claim 1, characterized in that, the upper tool holder cover includes a front side, and several screw holes are opened on the front side; the upper cutting module also It includes an upper stroke adjustment block, the upper stroke adjustment block includes a fixed piece and a resisting piece, the fixed piece is L-shaped after being perpendicular to the resisting piece, a fixed through hole is opened on the fixed piece, and a Fine-tuning screw hole; a screw passes through the fixed through hole of the upper stroke adjustment block and is screwed into a certain screw hole on the front side of the upper knife holder gland, and the upper stroke adjustment block can be fixedly ground after tightening. It is installed on the front side of the upper knife rest gland; another screw is screwed into the fine-tuning screw hole of the upper stroke adjustment block, and the screw is screwed in and out to adjust the positions of the upper knife rest and the upper cutting knife. 5. The heat-shrinkable tubing cutting tool for the shrunk rear busbar according to claim 1, wherein the lower tool holder cover includes a front side, and several screw holes are provided on the front side; the lower cutting module also It includes a lower stroke adjustment block, the lower stroke adjustment block includes a fixed piece and a resisting piece, the fixed piece is L-shaped after being perpendicular to the resisting piece. Screw hole; a screw passes through the fixed through hole of the lower stroke adjustment block and is screwed into a certain screw hole on the front side of the lower knife holder gland, and the lower stroke adjustment block can be fixedly installed after tightening On the front side of the lower knife rest gland; another screw is screwed into the fine-tuning screw hole of the lower stroke adjustment block, and the position of the lower knife rest and the lower cutting knife is adjusted by screwing in and out of the screw. 6. The heat-shrinkable tube cutting tool for busbar after shrinkage according to claim 1, characterized in that, the heat-shrinkable tube cutting tool for busbar after shrinkage further comprises a slide rail, a slide plate, two slide rail cover plates, a clamping positioning plate, a positioning limit plate; The slide rail is installed on the back of the upper fixing plate, and the slide rail includes a back plate, two mounting ribs extending vertically backward from the upper and lower ends of the back plate, and the back plate and the two mounting ribs are surrounded to form a a chute; The slide plate includes a slider and a guide rod, the upper surface and the lower surface of the slider are respectively provided with a groove, and the guide rod perpendicularly intersects with the slider; The two slide rail cover plates are respectively fixedly installed on the two mounting ribs of the slide rail and snapped into the two grooves of the slide block respectively, so that the slide block is installed between the slide rail and the slide rail cover plate During the period, the slider slides left and right in the chute of the slide rail; The clamping positioning plate includes a column, a slide plate clamping part clamped on the guide rod, and a busbar clamping part; The positioning and limiting plate is fixedly installed on the back of the busbar clamping part. 7. The heat-shrinkable tube cutting tool for the shrunk busbar according to claim 6, wherein the clamping part of the slide plate comprises an L-shaped first clamping arm and an L-shaped second clamping arm; the first clamping The arm is vertically extended from the column; the second arm is vertically extended from the column and is located below the first arm; a through hole is formed between the first slot and the second slot, It can be inserted into the guide rod of the slide plate, and the clamping positioning plate can move forward and backward along the guide rod; The busbar clamping portion includes an L-shaped first clamping arm and an L-shaped second clamping arm, the first clamping arm is formed by vertically extending from the column; the second clamping arm is formed from the column extending vertically and located below the first clamping arm; An accommodating groove is enclosed between the positioning limiting plate and the first clamping arm and the second clamping arm.

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