CN210788018U

CN210788018U - Drying device for drying voltage-sensitive resistor disc

Info

Publication number: CN210788018U
Application number: CN201921599109.6U
Authority: CN
Inventors: 张琪; 石国能; 岳涛; 冯志巍; 苏杰
Original assignee: Changzhou Tejet Lightning Protection Technology Co ltd
Current assignee: Changzhou Tejet Lightning Protection Technology Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-06-19
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a drying device for drying varistor piece belongs to drying equipment technical field, and its technical scheme main points are, including workstation and first heating pipe, first heating pipe wears to locate on the workstation, and the one end that first heating pipe stretches out the workstation is first heating end, is provided with the support on the workstation, is provided with the second heating pipe on the support, and the tip of second heating pipe sets up to the second heating end, and first heating end and second heating end set up relatively to first heating end and the coaxial setting of second heating end have placed the varistor piece between first heating end and the second heating end. Through setting up first heating end and second heating end, can heat the piezo-resistor disc simultaneously to can make more even of piezo-resistor disc heating, and can reduce workman's labour, the utility model is suitable for a drying equipment's design.

Description

Drying device for drying voltage-sensitive resistor disc

Technical Field

The utility model belongs to the technical field of the drying equipment technique and specifically relates to a drying device for drying varistor piece is related to.

Background

A Printed Circuit Board (PCB) of an electronic product is generally configured with a plurality of electronic components, such as chips, resistors, capacitors, inductors, etc., so as to form a circuit with a specific function; therefore, the PCB board may be provided with a plurality of soldering points for soldering the electronic components, and in order to obtain a better soldering effect and improve soldering efficiency, before soldering the electronic components, a layer of solder paste may be first applied to the soldering points of the PCB board.

When the pins on the piezoresistor disc are connected with the pins of other electrical elements, the tin paste is brushed at the joint between the piezoresistor disc and the pins of other electrical elements, and the tin paste at the joint is dried by the drying device, so that the pins of the piezoresistor disc and the pins of other electrical elements are reliably fixed.

The above prior art solution has the following drawbacks: the varistor needs to be dried on two sides, but in the prior art, only one side can be dried at one time, so that the varistor is not uniform in drying easily, and the labor force of workers is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drying device for drying varistor piece has the reduction labour and dries even effect.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a drying device for drying varistor piece, includes workstation and first heating pipe, first heating pipe is worn to locate on the workstation, first heating pipe stretches out the one end of workstation is first heating end, be provided with the support on the workstation, be provided with the second heating pipe on the support, the tip of second heating pipe sets up to the second heating end, first heating end with the second heating end sets up relatively, and first heating end with the coaxial setting of second heating end, first heating end with varistor piece has been placed between the second heating end.

Through adopting above-mentioned technical scheme, the piezo-resistor piece that will scribble the tin cream is placed between first heating end and second heating end, dries the tin cream of piezo-resistor piece two sides respectively through first heating pipe and second heating pipe. Through setting up first heating end and second heating end, can heat the piezo-resistor piece simultaneously to can make the more even of piezo-resistor piece heating, and can reduce workman's labour, make the workman not need dry the another side of drying of overturning again behind the one side.

The utility model discloses further set up to, the locating hole has been seted up on the workstation, first heating pipe is worn to locate in the locating hole, the locating hole is provided with a plurality of support frames all around, the varistor piece is placed in a plurality of on the support frame.

Through adopting above-mentioned technical scheme, set up the locating hole, can be convenient for to thermistor's location. Set up the support frame, can place the piezo-resistor piece on the support frame, after the tin cream stoving above the piezo-resistor piece, the staff can press from both sides the piezo-resistor piece through anchor clamps and get and break away from with the support frame, places a new piezo-resistor piece again.

The utility model discloses further set up to, be provided with the bracing piece on the support, the bracing piece is kept away from the one end of support is provided with solid fixed ring, gu fixed ring with the coaxial setting of second heating pipe, the second heating pipe is kept away from the one end of second heating end is provided with the handle, the handle with the second heating pipe sets up perpendicularly, second heating pipe detachably wears to locate in the fixed ring, the handle surface with gu fixed ring offsets, gu fixed ring's radial direction is provided with the locking bolt, the locking bolt stretches into gu fixed ring's one end with the second heating pipe offsets.

Through adopting above-mentioned technical scheme, when needs are to the two-sided heating of piezo-resistor piece, the staff places the second heating pipe in the fixed ring, then locks second heating pipe and fixed ring each other through the locking bolt, can dry the tin cream on the piezo-resistor piece. When the double-sided drying is not needed, the worker can hold the handle and loosen the locking bolt to take out the second heating pipe. The staff also can directly grip the handle, dries the piezo-resistor piece through the second heating pipe.

The utility model discloses further set up to, the second heating pipe is kept away from the one end of second heating end with be provided with the fixed block between the handle, one side of fixed block with the handle is close to one side fixed connection of second heating pipe, the opposite side of fixed block with be provided with the slip subassembly between the second heating pipe.

Through adopting above-mentioned technical scheme, can adjust the distance between second heating end and the workstation through the slip subassembly to can heat the tin cream on the piezo-resistor piece of higher quality.

The utility model discloses further set up to, the inside setting of fixed block is hollow structure, the locating piece that sliding assembly includes fixed plate and T type, the spout of U type is seted up along the length direction of its own to the fixed block, the spout is located the fixed block is close to the one side of second heating pipe, the locating piece is fixed in the fixed plate is kept away from the one side of second heating pipe, the locating piece with spout sliding connection.

Through adopting above-mentioned technical scheme, with locating piece and spout joint, when the second heating pipe descends to the position that needs towards the direction of second heating pipe, can fix the second heating pipe through the locking bolt.

The utility model discloses further set up to, the T type the locating piece is provided with a plurality of, a plurality of fixed slots have been seted up on a lateral wall of spout, and is a plurality of the locating piece is blocked respectively and is located a plurality ofly in the fixed slot.

Through adopting above-mentioned technical scheme, when the second heating pipe descends to required position towards the direction of second heating pipe, rotate the second heating pipe, can establish the locating piece card in the fixed slot, can fix the second heating pipe.

The utility model discloses further set up to, first heating pipe with the second heating pipe all is provided with a plurality ofly, first heating pipe with the top of second heating pipe all is provided with the suction hood, the suction hood is connected with the air exhauster, the air exhauster is kept away from the one end of suction hood is connected with the gas collecting tank.

Through adopting above-mentioned technical scheme, set up a plurality of first heating pipes and second heating pipe, can heat a plurality of piezo-resistor pieces simultaneously to can improve its production efficiency. When the solder paste on the pressure-sensitive resistance sheet is dried and the solder paste is at high temperature, smoke is easily generated and is sucked into the gas collecting tank from the dust hood through the exhaust fan.

The utility model discloses further set up to, the bottom of gas collecting tank is provided with the air inlet, the top of gas collecting tank is provided with the gas outlet, the air inlet is also the air exhauster links to each other, is provided with the active carbon granule in the gas collecting tank.

Through adopting above-mentioned technical scheme, the flue gas gets into in the gas-collecting tank from the air inlet, then filters the peculiar smell of flue gas inside through the active carbon granule, then discharges clean flue gas from the gas outlet.

To sum up, the utility model discloses following beneficial effect has:

1. through the arrangement of the first heating pipe and the second heating pipe, the labor force of workers can be reduced, and the workers do not need to dry one surface and then turn over the other surface to dry the other surface;

2. through the arrangement of the positioning holes and the human supporting frames, the positioning effect can be achieved, and the piezoresistor can be uniformly dried;

3. through the setting of solid fixed ring and sliding assembly, can play the effect of being convenient for adjust the second heating pipe.

Drawings

Fig. 1 is a schematic view of an overall structure of a drying apparatus according to an embodiment.

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

Fig. 3 is a schematic view of the structure between the second heating tube and the sliding assembly according to an embodiment.

Fig. 4 is a partially enlarged schematic view of a portion B in fig. 3.

In the figure, 1, a workbench; 2. a first heating pipe; 21. a first heating end; 3. a support; 4. a second heating pipe; 41. a second heating end; 42. a handle; 43. a fixed block; 5. a varistor sheet; 51. an electric heating wire; 6. positioning holes; 61. a support frame; 7. a support bar; 71. a fixing ring; 72. locking the bolt; 8. a sliding assembly; 81. a fixing plate; 82. positioning blocks; 821. connecting blocks; 822. a limiting block; 83. fixing grooves; 84. A chute; 9. a dust hood; 91. an exhaust fan; 92. a gas collection tank; 921. an air inlet; 922 an air outlet; 93. activated carbon particles.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the utility model discloses a drying device for drying varistor piece, including workstation 1 and first heating pipe 2, locating hole 6 has been seted up on workstation 1, first heating pipe 2 wears to locate in locating hole 6, locating hole 6 is provided with a plurality of support frames 61 all around, a plurality of support frames 61 are around on the circumference of first heating pipe 2, varistor piece 5 has been placed on a plurality of support frames 61, support frame 61 can be convenient for placing and taking out of varistor piece 5, after the tin cream above varistor piece 5 was dried, the staff can press from both sides varistor piece 5 clamp and break away from with support frame 61 through anchor clamps, place a new varistor piece 5 again. And the positioning holes 6 and the supporting frame 61 can save the time for positioning the piezoresistor disc 5 by the workers, thereby saving the labor force of the workers, improving the drying efficiency and improving the drying quality of the piezoresistor disc 5. The first heating end 21 is arranged at one end of the first heating pipe 2 close to the varistor 5, the heating wire 51 is arranged at the first heating end 21, and after the heating wire 51 is powered on, the heating wire 51 can generate heat to dry the solder paste on the varistor 5. When only one side of the varistor 5 needs to be dried, the side of the varistor 5 needing to be dried is dried through the first heating end 21.

Referring to fig. 2 and 3, when both sides of the varistor sheet 5 need to be dried, in order to improve the working efficiency and avoid drying one side of the varistor sheet 5, a support 3 (as shown in fig. 1) is disposed on the working table 1, a second heating pipe 4 is disposed on the support 3, an end of the second heating pipe 4 is a second heating end 41, a heating wire 51 having the same specification as the first heating end 21 is also disposed at the second heating end 41, the first heating end 21 and the second heating end 41 are disposed opposite to each other, and the first heating end 21 and the second heating end 41 are coaxially disposed. The two sides of the varistor 5 are simultaneously heated through the first heating end 21 and the second heating end 41, so that the working efficiency can be improved, and the varistor 5 can be dried more uniformly. The support 3 is provided with a support rod 7, the support rod 7 is arranged in parallel with the workbench 1, one end, away from the support 3, of the support rod 7 is perpendicular to the support rod, a fixing ring 71 is arranged, and the fixing ring 71 and the first heating pipe 2 are arranged coaxially. The second heating pipe 4 is detachably arranged in the fixing ring 71 in a penetrating manner, a handle 42 is arranged at one end, away from the second heating end 41, of the second heating pipe 4, the handle 42 is perpendicular to the second heating pipe 4, the surface of the handle 42 abuts against the fixing ring 71, and therefore the second heating pipe 4 arranged in the fixing ring 71 in a penetrating manner is limited through the handle 42. In order to reduce the wobbling of the second heating pipe 4 in the fixing ring 71, a locking bolt 72 is disposed in the radial direction of the fixing ring 71, and one end of the locking bolt 72 extending into the fixing ring 71 abuts against the second heating pipe 4, so that the second heating pipe 4 is firmly and reliably fixed in the fixing ring 71. Because the second heating pipe 4 is detachably inserted into the fixing ring 71, when the double-sided drying is not needed, the operator can hold the handle 42 and loosen the locking bolt 72, so that the second heating pipe 4 can be moved in the direction away from the first heating end 21, and the second heating pipe 4 can be taken out from the fixing ring 71. When a single varistor 5 or a small number of varistors 5 need to be dried, the worker can directly hold the handle 42 to dry the varistor 5 through the second heating pipe 4.

Referring to fig. 4, since the thickness of the varistor sheet 5 is varied, the distance between the second heating end 41 and the table 1 needs to be adjusted according to the thickness of the varistor sheet 5, so that a fixing block 43 is disposed between one end of the second heating pipe 4 far from the second heating end 41 and the handle 42, one side of the fixing block 43 is fixedly connected with one side of the handle 42 close to the second heating pipe 4, and a sliding assembly 8 is disposed between the other side of the fixing block 43 and the second heating pipe 4. The distance between the second heating end 41 and the worktable 1 is adjusted by the sliding assembly 8, so that the solder paste on the piezoresistor 5 can be heated with higher quality. The sliding assembly 8 includes a fixing plate 81 and a T-shaped positioning block 82, the positioning block 82 is fixed on the fixing plate 81, and the positioning block 82 includes a connecting block 821 and a limiting block 822, the connecting block 821 is vertically disposed at a middle portion of the limiting block 822. The fixed block 43 is provided with a U-shaped sliding groove 84 along the length direction of the fixed block, the sliding groove 84 is located on one surface of the fixed block 43 close to the second heating pipe 41, the limit block 822 is located inside the fixed block 43, and the connecting block 821 is slidably connected with the sliding groove 84 and can drive the limit block 822 to move inside the fixed block 43. In order to facilitate the fixing of the second heating pipe 4, a plurality of fixing grooves 83 are formed in one side wall of the sliding groove 84, and when the second heating pipe 4 descends to a required position in the direction of the first heating pipe 2, the second heating pipe 4 is rotated, so that the connecting block 821 can be clamped in the fixing grooves 83, and the second heating pipe 4 can be fixed. In order to enable the direct connection of the 4 fixing blocks 43 of the second heating pipe to be more firm, a plurality of T-shaped positioning blocks 82 are arranged.

Referring to fig. 1, in order to heat a plurality of varistor sheets 5 at the same time to improve the production efficiency thereof, a plurality of first heating pipes 2 and a plurality of second heating pipes 4 are provided. When the solder paste on the varistor 5 is dried, the solder paste is heated at high temperature, the smoke is easily generated, so that the suction hoods 9 are arranged above the first heating pipe 2 and the second heating pipe 4, the suction hoods 9 are connected with the exhaust fans 91, one ends of the exhaust fans 91 far away from the suction hoods 9 are connected with the gas collecting tanks 92, and the smoke is sucked into the gas collecting tanks 92 from the suction hoods 9 through the exhaust fans 91. The bottom of gas collection tank 92 is provided with air inlet 921, and the top of gas collection tank 92 is provided with gas outlet 922, and air inlet 921 links to each other with air exhauster 91, is provided with activated carbon particle 93 in gas collection tank 92, and the flue gas gets into in the gas collection tank 92 from the air inlet, then filters the inside peculiar smell of flue gas through activated carbon particle 93, then discharges clean flue gas from the gas outlet.

The implementation principle of the above embodiment is as follows: the varistor 5 is placed on the support frame 61, the heating wire 51 of the first heating end 21 and the heating wire 51 of the second heating end 41 are electrified, and the electrified heating wire 51 can generate heat, so that the varistor 5 placed on the support frame 61 can be dried. Some varistor discs 5 only need to be dried on one side, so that the side needing to be dried faces the first heating end 21, a worker can loosen the locking bolt 72, and the second heating pipe 4 and the fixing ring 71 can be disconnected by holding the handle 42. When the double-sided heating of the varistor 5 is needed, a worker places the second heating pipe 4 in the fixing ring 71, and then the second heating pipe 4 and the fixing ring 71 are locked with each other through the locking bolt 72, so that the solder paste on the varistor 5 can be dried. If the height of the second heating end 41 needs to be adjusted, the second heating pipe 4 is rotated, the connecting block 821 and the fixing groove 83 are disconnected, the connecting block 821 can be moved up and down in the sliding groove 84, so that the second heating pipe 4 can be adjusted in an up-and-down lifting manner, after the position is determined, the connecting block 821 and the fixing groove 83 can be clamped with each other by rotating the second heating pipe 4, and the height of the second heating pipe 4 can be limited.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a drying device for drying varistor piece, includes workstation (1) and first heating pipe (2), its characterized in that: first heating pipe (2) wear to locate on workstation (1), first heating pipe (2) stretch out the one end of workstation (1) is first heating end (21), be provided with support (3) on workstation (1), be provided with second heating pipe (4) on support (3), the tip of second heating pipe (4) sets up to second heating end (41), first heating end (21) with second heating end (41) set up relatively, and first heating end (21) with the coaxial setting of second heating end (41), first heating end (21) with varistor piece (5) has been placed between second heating end (41).

2. A drying apparatus for drying a varistor sheet according to claim 1, characterized in that: the automatic pressure-sensitive resistor disc heating device is characterized in that a positioning hole (6) is formed in the workbench (1), the first heating pipe (2) penetrates through the positioning hole (6), a plurality of supporting frames (61) are arranged on the periphery of the positioning hole (6), and the pressure-sensitive resistor discs (5) are placed on the plurality of supporting frames (61).

3. A drying apparatus for drying a varistor sheet according to claim 2, characterized in that: be provided with bracing piece (7) on support (3), bracing piece (7) are kept away from the one end of support (3) is provided with solid fixed ring (71), gu fixed ring (71) with second heating pipe (4) coaxial setting, keep away from second heating pipe (4) the one end of second heating end (41) is provided with handle (42), handle (42) with second heating pipe (4) set up perpendicularly, second heating pipe (4) detachably wear to locate in gu fixed ring (71), handle (42) surface with gu fixed ring (71) offsets, gu the radial direction of fixed ring (71) is provided with locking bolt (72), locking bolt (72) stretch into gu the one end of fixed ring (71) with second heating pipe (4) offset.

4. A drying apparatus for drying a varistor sheet according to claim 3, characterized in that: the one end that second heating pipe (4) kept away from second heating end (41) with be provided with between handle (42) fixed block (43), one side of fixed block (43) with handle (42) are close to one side fixed connection of second heating pipe (4), the opposite side of fixed block (43) with be provided with between second heating pipe (4) slip subassembly (8).

5. A drying apparatus for drying a varistor sheet according to claim 4, characterized in that: the inside hollow structure that sets up of fixed block (43), locating piece (82) of slip subassembly (8) including fixed plate (81) and T type, spout (84) of U type are seted up along its length direction of itself to fixed block (43), spout (84) are located fixed block (43) are close to the one side of second heating pipe (4), locating piece (82) are fixed in fixed plate (81) are kept away from the one side of second heating pipe (4), locating piece (82) with spout (84) sliding connection.

6. A drying apparatus for drying a varistor sheet according to claim 5, characterized in that: the T-shaped positioning blocks (82) are provided with a plurality of positioning blocks, a plurality of fixing grooves (83) are formed in one side wall of the sliding groove (84), and the plurality of positioning blocks (82) are respectively clamped in the plurality of fixing grooves (83).

7. A drying apparatus for drying a varistor sheet according to claim 1, characterized in that: first heating pipe (2) with second heating pipe (4) all are provided with a plurality ofly, first heating pipe (2) with the top of second heating pipe (4) all is provided with suction hood (9), suction hood (9) are connected with air exhauster (91), air exhauster (91) are kept away from the one end of suction hood (9) is connected with gas collecting tank (92).

8. A drying apparatus for drying a varistor sheet according to claim 7, characterized in that: the bottom of gas collection tank (92) is provided with air inlet (921), the top of gas collection tank (92) is provided with gas outlet (922), air inlet (921) with air exhauster (91) link to each other, be provided with activated carbon particle (93) in gas collection tank (92).