CN201288132Y - Automatic molding machine for spiral tube - Google Patents

Abstract

The utility model relates to a manufacturing equipment for an energy-saving lamp tube. The technical problem to be solved is that the provided spiral energy-saving lamp lamp tube forming equipment should have the characteristics of high yield, good quality and high degree of automation. The technical solution is: a heating box for heating the glass tube is installed in the middle part of the top of the frame, and a tube inlet groove suitable for the diameter of the glass tube is formed in the lower part of the heating box; a rotatable tube is vertically positioned under the heating box The die head is driven by a lifting mechanism, and it moves up or down while rotating; the left side of the heating box is the tube feeding frame and the feeding frame, which are used to send the orderly arranged glass tubes into the heating box for processing. Heating; the right side of the heating box is a clamping mechanism equipped with claws; there is a clamping mechanism on the front and rear sides of the frame; the two clamping mechanisms are also positioned on the two sliding pairs, and are driven by a linear motion mechanism. Symmetrical straight-line sliding.

Description

Spiral tube automatic forming machine

technical field

The utility model relates to a manufacturing device for an energy-saving lamp tube, in particular to a forming device for a spiral energy-saving lamp tube.

Background technique

Due to the advantages of high luminous efficiency and energy saving, the spiral energy-saving lamp conforms to the trend of energy saving and environmental protection in today's society, and its application range has also been expanded unprecedentedly.

The forming process of the spiral energy-saving lamp tube is to heat the straight glass tube to a softened state, then put it on the mold and bend it into a spiral-shaped semi-finished tube (as shown in Figure 1); after that, it can enter the next process to continue processing.

At present, the semi-finished lamp tubes of the spiral energy-saving lamps produced in China are basically formed manually; due to the manual bending, the pass rate is not high (only about 90%), and the production efficiency is also low; in addition, due to the high temperature production environment , Poor working conditions, resulting in difficulty in reducing production costs.

Utility model content

The purpose of this utility model is to overcome the shortcomings of the above-mentioned background technology and provide a forming equipment for spiral energy-saving lamp tubes. The equipment should have the characteristics of high yield, good quality and high degree of automation.

The utility model adopts the following technical solutions:

Spiral tube automatic forming machine, a heating box for heating the glass tube is installed in the middle part of the top of the frame, and a tube inlet groove suitable for the diameter of the glass tube is made in the lower part of the heating box; the bottom of the heating box is vertically positioned A rotatable die head, which is driven by a lifting mechanism, moves up or down while rotating; the left side of the heating box is the tube feeding rack and the feeding rack, which are used to feed the orderly arranged glass tubes into the The heating box is used for heating; the right side of the heating box is a clamping mechanism equipped with claws, so as to unload the formed spiral lamp tube; there is a clamping mechanism on the front and rear sides of the frame, which is used to block and clamp the glass to be heated The nozzles at both ends of the tube; the two clamping mechanisms are also positioned on the two sliding pairs, and are driven by a linear motion mechanism to move symmetrically in a straight line, so that the mold that lands on the die head can be moved while the die head is rotating. The heated glass tube is bent into a helical shape.

The pipe inlet groove extends upwards from the bottom of the heating box along the lower half of both sides. The length of the heating box is shorter than the glass tube, so that the two ends of the glass tube can hang out of the box and be clamped by the feeding frame. Lift to embed the middle part of the glass tube into the middle of the heating box for heating.

The tube inlet rack includes at least two channel steels arranged in parallel and kept forward and downward, the openings of the channel steels face each other, so that the two ends of the glass tubes are embedded in the grooves of the channel steels and then driven by gravity Front sliding; the front end of the tube feeding frame is arranged with two groups of blanking rods driven by the cylinder respectively, and the two groups of blanking rods move in turn so as to release one glass tube into the feeding frame at a time.

The feeding rack includes at least two rack bars arranged in parallel and kept in a forward and downward tilting state, and the front ends of the rack bars are formed with upwardly bent positioning hooks, so that the glass tubes placed in the tube rack can enter the positioning hooks for positioning; The frame is also fixed on the feeding mechanism formed by the cylinder, so that the glass tube on the positioning hook can accurately enter the tube inlet groove of the heating box for heating.

The two clamping mechanisms are respectively moved by a supporting mechanism, so that the clamping sleeves in the two clamping mechanisms accurately clamp the nozzles at both ends of the glass tube protruding from the outside of the heating box at the same time, and make the Insert the inflation nozzle in the middle of the clamping sleeve into the mouth of the glass tube to inflate.

The horizontal plane projections of the rails in the two sliding pairs are connected in a straight line, and the rails are inclined to rise from both sides to the middle.

The linear motion mechanism in the clamping mechanism is a rack and pinion mechanism.

The clamping mechanism is a lever mechanism driven by an air cylinder.

The working process of the utility model is: a plurality of glass tubes cut into fixed lengths are put into the tube rack by the operator and then arranged in parallel; two groups of blanking rods take turns to release one glass tube into the feeding rack each time; The glass tube of the feeding rack rolls along the inclined rod surface and falls into the positioning hook at the front end of the rack rod; the feeding rack is driven by the cylinder in the feeding mechanism, and the glass tube held by it is first moved horizontally to the bottom surface of the heating box , and then rise to insert the middle part of the glass tube into the pipe inlet groove of the heating box for heating (the two ends of the glass tube are still exposed outside the heating box and are supported by the feeding frame), and then the bottom gate of the heating box is closed to Maintain the temperature in the box; then, the two clamping mechanisms are respectively carried by a supporting mechanism to move upward and horizontally, so that the clamping sleeves in the two clamping mechanisms can accurately clamp the glass tubes protruding from the outside of the heating box at the same time The two ends of the nozzle, and the feeding rack will drop the glass tube to the pinch mechanism and then return to the initial position to receive the next glass tube put in by the blanking rod of the tube rack. After the heating time is satisfied, the gate at the bottom of the heating box is opened, and the clamping mechanism lowers the heated glass tube together, so that the middle section of the glass tube drops into the groove at the top of the die head; then the die head rises while rotating, and at the same time the gear The rack mechanism drags the clamping mechanism on both sides to the die head at a constant speed along the inclined upward track; the glass tube softened by high temperature is embedded in the spiral thread groove on the peripheral surface of the die head, and it is cooled and shaped into a semi-finished lamp in a short time Afterwards, the two claws in the clamping mechanism clamp the two nozzle ends of the semi-finished lamp tube from both sides, and the clamping sleeve in the clamping mechanism moves to both sides after being disengaged from the two nozzles of the semi-finished lamp tube Leave, and then the die head is turned upside down while descending and disengaged from the helical surface of the semi-finished lamp tube and returns to the original position; finally, the two claws in the clamping mechanism are also dragged by the cylinder to move horizontally backward and return to the original position After releasing, the semi-finished lamp tube is released and falls on the pallet, and one semi-finished lamp tube is completed; the production of the next semi-finished lamp tube starts immediately, and the cycle repeats.

The beneficial effects of the utility model are: due to the use of mechanical manufacturing, not only the quality of the finished product is significantly improved (the qualified rate is increased by more than 5%), the energy saving effect is remarkable (more than 40% energy saving compared with manual production), the production efficiency is doubled, and the operator The working environment has been greatly improved; therefore, it has broad prospects for promotion.

Description of drawings

Fig. 1 is an enlarged schematic diagram of the structure of a semi-finished lamp tube.

Fig. 2 is a front structural schematic view of the utility model.

Fig. 3 is a right view structure diagram of the utility model.

Fig. 4 is a schematic diagram of the A-direction structure of the pipe inlet rack in Fig. 2 .

Fig. 5 is a top structural schematic diagram of the pipe inlet rack and the feeding rack in Fig. 2 .

FIG. 6 is a schematic diagram of the enlarged structure of part B in FIG. 2 .

FIG. 7 is a schematic diagram of an enlarged structure of part C in FIG. 3 .

FIG. 8 is an enlarged schematic view of the die head in FIG. 3 .

Fig. 9 is an enlarged structural schematic view of the semi-finished lamp tube when it is rolled on the die head.

Fig. 10 is an enlarged structural schematic diagram of the clipping mechanism in Fig. 2 .

Detailed ways

As shown in the figure: spiral lamp tube automatic forming machine, a heating box 23 for heating the glass tube 2 is installed in the middle part of the top of the frame 21, and a tube inlet groove 23 adapted to the diameter of the glass tube is formed on the lower part of the heating box -1; the pipe inlet groove passes through the bottom surface of the entire heating box, and extends from the bottom surface of the heating box along the two sides to the middle of the heating box; the length of the heating box is shorter than the glass tube, so that the two ends of the glass tube can hang Stretch out of the box and be clamped by the feeding frame to lift up, so as to embed the middle part of the glass tube into the middle of the heating box for heating.

A rotatable die head 25 (shown in Figure 8 ) is vertically positioned below the heating box, and the circumferential surface of the die head is shaped on a spiral groove 25-2 that is suitable for the glass tube, and the top is also shaped on a screw groove that is suitable for the glass tube. The straight groove 25-1; the die head is driven by a lifting mechanism, and it moves up or down while rotating; the lifting mechanism is a vertically arranged screw mechanism: the nut is fixed on the machine base, and the circumferential surface of the main shaft 47 Be shaped on the external thread 47-1 that matches with the nut, and the top of the main shaft is fixed with the die head seat that contains the die head 25 (the electric heater 26 that preheats the die head 25 is housed in the die head seat, so that the glass tube is bent will not be cooled in advance), the output shaft of the motor 44 is meshed with the pulley 37 on the main shaft 47 through the synchronous belt 45; slide in the keyway of pulley 37 and rise).

The left side of the heating box is the tube feeding frame 3 and the feeding frame 31, which are used to send the orderly arranged glass tubes into the heating box for heating; the tube feeding frame includes at least two channel steels arranged in parallel and keeps the Going to the downward inclined state, the openings of the channel steel face each other, so that the two ends of the glass tube are embedded in the grooves of the channel steel, and then are driven by gravity to slide forward; Groups of blanking rods 30-1 are respectively driven by respective cylinders 30 to be lifted upwards in turn, so that a glass tube is allowed to enter on the feeding rack at a time.

The feeding rack includes at least two rack rods arranged in parallel and kept in a forward and downward tilting state. The rear end of the rack rod is connected with the pipe feed frame, and the front end of the rack rod is formed with an upwardly bent positioning hook to receive the feed pipe. put the glass tube into the frame and make it enter the positioning hook for positioning; the feeding frame is also fixed on the feeding mechanism composed of cylinders. When working, the horizontal cylinder 32 first moves the feeding frame horizontally so that the supported glass tube moves to the heating box. Bottom surface, then the vertical cylinder 34 rises to accurately insert the middle part of the supported glass tube into the pipe inlet groove of the heating box for heating (then the cylinder 29 starts to close the gate 24 at the bottom of the heating box to increase and maintain the temperature in the box) .

There is a clamping mechanism on the front and rear sides of the frame, and the two clamping mechanisms are carried by a supporting mechanism respectively, so that the clamping sleeves in the two clamping mechanisms can accurately clamp the glass tubes in the heating box at the same time. The nozzles at both ends, and the inflation nozzle in the middle of the clamp sleeve is inserted into the nozzle of the glass tube to inflate. Figure 7 shows the structure of the pinch mechanism on the left side (the two pinch mechanisms have the same structure, are arranged symmetrically and work at the same time, so the pinch mechanism on the right side that is blocked in Figure 3 is not shown); the pinch mechanism is positioned at At the top of the lifting shaft 14, the lifting shaft 14 of the vertical cylinder 16 drives the clamping mechanism to rise to the proper position first, and then the stretching cylinder 7 moves to make the clamping sleeve 9 in the clamping mechanism stretch forward, and the clamping cylinder 6 starts again Insert the clamping sleeve into the nozzle of the glass tube (after the two clamping sleeves support the glass tube from both ends, the feeding frame is driven by the cylinder to move in the opposite direction and return to the initial position).

The two clamping mechanisms are also respectively positioned on the two sliding pairs, and are driven by a linear motion mechanism to move symmetrically in a straight line, so that the heated glass tube falling on the die can form a spiral shape while the die is rotating ( As can be seen in Fig. 7, the clamping mechanism is positioned on the sliding pair by the plane bearing 10, so that the clamping mechanism can follow the rotation of the die head and rotate a certain angle around the vertical line). Show among Fig. 6: this sliding pair is the channel steel 13 (as track) of oblique arrangement and the bearing 11 embedded in the channel steel, channel steel 13 is fixed on the frame, and bearing 11 is then rotatably positioned on the pinch mechanism On the support seat and support the full weight of the pinch mechanism. As can be seen in Fig. 3: the horizontal plane projection of the channel steel 13 on the left side and the right side channel steel as the track is connected in a straight line, and the channel steels on both sides are all inclined to rise from both sides to the middle part (die head) to form a slope; The inclination angle is commensurate with the inclination of the spiral groove on the peripheral surface of the die head.

The linear motion mechanism in the clamping mechanism is a rack and pinion mechanism. As can be seen in Fig. 3: one end of the rack 17 is connected to the drag plate 15 on the left clamping mechanism, and the other end is engaged with the gear 46 on the main shaft 47 (see Fig. 6), so when the main shaft 47 rotates, it is also driven The rack and pinion mechanism drives the clamping mechanism to slide on the track (the left and right rack and pinion mechanisms are also completely symmetrically arranged). In addition, when the two clutch cylinders 36 in Fig. 6 apply force to the rack 17 respectively, the gear and the rack mesh; With the contact of the gears, the clamping mechanism can slide down from the height of the slope by its own weight and return to the original position on both sides.

The right side of heating box is the clamping mechanism 43 that claw is housed, and clamping mechanism is the lever mechanism driven by cylinder, so that unloading the spiral lamp tube after molding. It can be seen from Fig. 10 that the lower jaw 43-1 in the clamping mechanism is fixed, the upper jaw 43-2 is hinged on a lever mechanism, the clamping cylinder 41 moves, and the upper jaw 43-2 is driven by the cylinder rod 41-1. movement, just carry out the action of clamping or releasing the semi-finished lamp tube. And the forward and backward of clamping mechanism is driven by cylinder 28 and the sliding sleeve 40 that clamping mechanism is housed moves on slide shaft 39 and finishes.

In addition, the clamping mechanism is also provided with a head-raising mechanism; it can be seen from Figure 7 that the cylinder 5 in the mechanism shrinks the piston rod downward after starting, so that the movable plate equipped with the clamping sleeve 9 surrounds it and clamps it. When the hinge point 8 of the frame 12 rotates, the clamping sleeve holding the nozzle of the glass tube rotates counterclockwise thereupon (the clamping sleeve on the right side also moves symmetrically); in this way, the heated and softened glass can be lifted more effectively. Tube.

In addition, the action and stroke control of all mechanisms can be obtained through the photoelectric signal switch or stroke switch, and controlled by a simple circuit (the control circuit can be purchased); the movement of each cylinder can be uniformly controlled by a programmable controller (outsourced).

Also have in the figure: control box 22, power supply box 27, gas storage tank 38.

Claims (8)

1, helical lampl automatic molder is characterized in that: the heating container (23) of a heating glass pipe (2) is equipped with in the middle part at frame (21) top, and the Lower Half of heating container is shaped on an inlet pipe groove (23-1) that adapts with the Glass tubing caliber; A rotating die head (25) is vertically being located by the bottom of heating container, and die head is driven by a lifting mechanism, moves upward or downward when rotating; The left side of heating container is inlet pipe frame (3) and cradle (31), the right side of heating container be chela is housed fold up mechanism (43), respectively there is a clamp mechanism on the both sides, front and back of frame, two clamp mechanisms also are positioned at two slips respectively and pay, and drive by a straight-line motion mechanism and to do symmetric straight line slippage, twist the heating glass pipe that drops on the die head helically shaped when die head rotates.

2, helical lampl automatic molder according to claim 1, it is characterized in that described inlet pipe groove (23-1) up extends along the both sides Lower Half from the bottom surface of heating container (23), the length of heating container is less than Glass tubing, the two ends of the Glass tubing outlet that overhangs is outer and by cradle (31) clamping and to lift, and the middle part of Glass tubing embeds the middle part heating of heating container.

3, helical lampl automatic molder according to claim 1, it is characterized in that described inlet pipe frame (3) comprises that at least two channel-section steels that are arranged in parallel also keep forward down heeling condition, the opening of channel-section steel (13) in opposite directions and right, the two ends of Glass tubing are ordered about to front slide by gravity after embedding in the groove of channel-section steel; The front end of inlet pipe frame is being arranged respectively two groups of blanking bars that driven by cylinder, and two groups of blanking bars action Glass tubing of letting pass in turn enter on the cradle.

4, helical lampl automatic molder according to claim 1, it is characterized in that described cradle (31) comprises at least two down hack levers of heeling condition that are arranged in parallel and keep forward, the front end of hack lever is shaped on the location hook that is bent upwards, and cradle also is fixed on the feed mechanism of cylinder composition.

5, helical lampl automatic molder according to claim 1, it is characterized in that described two clamp mechanisms are being carried by a delivery mechanism respectively moves, in two clamp mechanisms fold up cover respectively accurately clamping stretch out the two ends mouth of pipe of the Glass tubing of heating container outside, fold up cover intermediary charging connector and insert in the mouth of pipe of Glass tubing and inflate.

6, helical lampl automatic molder according to claim 1 it is characterized in that the horizontal plane projection of described two tracks in paying that slide is linked to be a straight line, and track rises from two side direction intermediate, inclined.

7,, it is characterized in that the straight-line motion mechanism in the described clamp mechanism is a pinion and rack according to claim 1 or 2 or 3 or 4 or 5 or 6 described helical lampl automatic molders.

8, helical lampl automatic molder according to claim 7 is characterized in that the described mechanism (43) that folds up is the leverage that cylinder drives.

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