CN207158714U - A kind of production line and its conveyer system - Google Patents

Abstract

The utility model relates to a production line and a transfer system thereof. The production line includes at least two conveying lines and a transfer system. The transfer system includes a transfer device. The transfer device includes a platform on which a fork is equipped to reciprocate in a straight line in the horizontal direction. For the working position above the line, each conveying line is provided with a jacking machine corresponding to the working position, and the jacking machine has a high position higher than the fork and a lower position lower than the conveying plane on the conveying line during its moving stroke. When the transfer system transfers the goods between the two conveying lines, three independent devices, the transfer device and the jack on the two conveying lines, realize the transfer of workpieces, and the three devices can return after completing their own functions. Transporting the next workpiece enables the entire transfer system to perform transfer operations of multiple workpieces at the same time, which greatly improves the transfer efficiency of the transfer system and speeds up the production rhythm of the entire production line.

Description

A production line and its transfer system

technical field

The utility model relates to a production line and a transfer system thereof.

Background technique

During the production process of existing automobiles, when processing the body, it is necessary to move the body at different stations because it involves different processing processes on the body. At present, the commonly used transfer device on the production line is the transfer fork. , The transfer fork is installed on the lifting platform, which can move horizontally or vertically. In actual use, the car body is located on the conveying plane on the carrier and is moved on the production line through the carrier. After the carrier on a production line transports the car body to the transfer fork, the transfer fork is at the Low position, after the transfer fork stretches out the fork, it rises to a high position to lift the body from the carrier, then the transfer fork drives the body to move horizontally to another conveyor line, and the transfer fork descends to place the body on another conveyor line On the carrier on the production line, the transfer fork is lowered to the lower position and retracted to complete the movement of the body on the two conveyor lines. The disadvantages of this type of transfer fork in actual use are: in addition to the horizontal telescopic movement, the transfer fork also needs to perform lifting movement, and before it returns, other supporting equipment is in a waiting state, and the transportation efficiency is low. Low, seriously affecting the production beat of the entire production line.

Utility model content

The purpose of this utility model is to provide a transfer system with high transfer efficiency; the purpose of this utility model is also to provide a production line using the above transfer system.

In order to achieve the above purpose, the technical solution 1 of a production line of the present utility model is: a production line, including at least two conveying lines and a transfer system, the transfer system includes a transfer device, and the transfer device includes a stand, a table The frame is equipped with pallet forks that reciprocate in a straight line in the horizontal direction. The pallet forks have working positions above each conveying line during their moving strokes. Each conveying line is equipped with a jacking machine corresponding to the working positions. During its movement, the jack has a high position above the forks and a low position below the conveying level on the conveying line.

In the transfer system of the utility model, when transferring workpieces between two conveying lines, the transfer of workpieces is realized through three independent devices of the jacking machine and the transfer device on the two conveying lines, and the three independent devices are respectively Realize the transfer process of the workpiece such as jacking, transfer, and lowering. After the three devices complete their own functions, they can return to transport the next workpiece, so that the entire transfer system can perform the transfer of multiple workpieces at the same time, which greatly improves the efficiency of the transfer system. Transfer efficiency speeds up the production rhythm of the entire production line.

The technical solution 2 of a production line of the utility model is further improved on the basis of the technical solution 1: there are two conveying lines, and the two conveying lines are located on both sides of the transfer device. This arrangement makes the movement of the pallet fork between the two working positions not affected by the jacks on the two working positions, and the system can transfer three workpieces at the same time.

The technical scheme 3 of a production line of the utility model is further improved on the basis of the technical scheme 2: two conveying lines are parallel to each other. This design can reduce the length of the workshop occupied by the production line.

The technical solution 4 of a production line of the utility model is further improved on the basis of the technical solution 2: the fork includes at least one fork unit, and the fork unit includes a lower fork fixed relative to the stand, and a lower fork guide The middle fork that moves and cooperates with the upper fork that moves with the guide of the middle fork. The middle fork is provided with a middle fork rack. The fork unit also includes at least one driving gear that engages with the middle fork rack to drive the middle fork to move. , the middle fork is also provided with at least one middle fork gear, the upper fork is provided with an upper fork rack gear meshed with the middle fork gear, and the lower fork is provided with a lower fork rack gear meshed with the middle fork gear. When the lower fork moves, the middle fork gear is driven to rotate through the meshing of the middle fork gear with the lower fork rack, and the middle fork gear is meshed with the upper fork rack to drive the upper fork to move relative to the middle fork. The drive gear is also installed on the platform Rotating forward and reverse motor.

Rack and pinion and forward and reverse motors are used to drive the fork unit to move telescopically to both sides, so as to meet the transfer and transfer of goods between two cargo positions with limited space. It is small in size and precise in transmission. The upper fork is twice as large as the middle fork. The speed of expansion and contraction is high, and the expansion and contraction efficiency is high.

The technical scheme 5 of a production line of the utility model is further improved on the basis of the technical scheme 4: there are two pallet fork units. There are two fork units, each of which is driven by a drive gear, so that the expansion and contraction of the two forks is more balanced and stable.

The technical solution 6 of a production line of the utility model is further improved on the basis of the technical solution 5: the two fork units share the same forward and reverse motor. It not only saves space and reduces cost, but also can ensure better synchronization of expansion and contraction of the two pallet fork units.

The technical solution 7 of a production line of the utility model is further improved on the basis of the technical solution 6: the forward and reverse motor is located on the side of one fork unit away from the other fork unit, and the driving gears of the two fork units pass through Cardan shaft drive connection.

The technical solution 8 of a production line of the utility model is further improved on the basis of any one of the technical solutions 4-7: the output shaft of the forward and reverse motor is connected with a driving gear, and each fork unit There are two driving gears, and the two driving gears are respectively located on both sides of the driving gear and are meshed with the driving gear simultaneously. By arranging two driving gears, the protruding distance of the middle fork can be consistent when stretching towards both sides, and the protruding length of the middle fork becomes longer compared with one driving gear.

The technical solution 9 of a production line of the utility model is further improved on the basis of any one of the technical solutions 4-7: the output shaft of the forward and reverse motor is connected with a driving gear, and each fork unit There are at least two pairs of driving gears, the first pair is located on both sides of the driving gear and meshes with the driving gear simultaneously, and the second pair is located on both sides of the first pair. The setting of more than two pairs of driving gears can increase the meshing length with the middle fork, thereby significantly improving the extension length of the middle fork.

The technical solution 10 of a production line of the utility model is further improved on the basis of any one of the technical solutions 4-7: the middle fork gear has more than two and is arranged at intervals along the length direction of the middle fork. The fork gears are connected through an odd number of transmission idler gears.

The technical solution 11 of a production line of the utility model is further improved on the basis of any one of the technical solutions 1-7: the conveying line is provided with a carrier for conveying workpieces.

The technical solution 12 of a production line of the utility model is further improved on the basis of the technical solution 11: the carrier is a skid or a spreader or a trolley.

In order to achieve the above purpose, the technical scheme 1 of a transfer system of the present invention is: a transfer system, including a transfer device, the transfer device includes a platform, and the platform is equipped with a fork that moves linearly and reciprocatingly along the horizontal direction. , the transfer system also includes at least two jacks that are respectively arranged on each conveying line when in use, and the jacking machine has a high position higher than the fork and lower than the conveying line on the conveying line in its moving stroke. The lower part of the plane.

In the transfer system of the utility model, when transferring workpieces between two conveying lines, the transfer of workpieces is realized through three independent devices of the jacking machine and the transfer device on the two conveying lines, and the three independent devices are respectively Realize the transfer process of the workpiece such as jacking, transfer, and lowering. After the three devices complete their own functions, they can return to transport the next workpiece, so that the entire transfer system can carry out the transfer operation of multiple workpieces at the same time, which greatly improves the efficiency of the transfer system. Transfer efficiency speeds up the production rhythm of the entire transfer system.

The technical solution 2 of the transfer system of the utility model is further improved on the basis of the technical solution 1: there are two jacking machines, and the two jacking machines are respectively located on both sides of the transfer device when in use. This setting makes the fork not be affected by another jack when moving the goods on one jack, so that the system can transfer three goods at the same time.

The technical solution 3 of the transfer system of the utility model is further improved on the basis of the technical solution 2: the fork includes at least one fork unit, and the fork unit includes a lower fork fixed relative to the stand, and a lower fork The middle fork that cooperates with the guide movement and the upper fork that cooperates with the guide movement of the middle fork. The middle fork is equipped with a middle fork rack. Gears, the middle fork is also provided with at least one middle fork gear, the upper fork is provided with an upper fork rack that meshes with the middle fork gear, and the lower fork is provided with a lower fork rack that is meshed with the middle fork gear. When moving relative to the lower fork, the middle fork gear is driven to rotate through the meshing of the middle fork gear with the lower fork rack, and the middle fork gear is meshed with the upper fork rack to drive the upper fork to move relative to the middle fork. A gear-rotating forward and reverse motor.

Rack and pinion and forward and reverse motors are used to drive the fork unit to move telescopically to both sides, so as to meet the transfer and transfer of goods between two cargo positions with limited space. It is small in size and precise in transmission. The upper fork is twice as large as the middle fork. The speed of expansion and contraction is high, and the expansion and contraction efficiency is high.

The technical solution 4 of the transfer system of the utility model is further improved on the basis of the technical solution 3: there are two fork units. There are two fork units, each of which is driven by a drive gear, so that the expansion and contraction of the two forks is more balanced and stable.

The technical solution 5 of the transfer system of the utility model is further improved on the basis of the technical solution 4: the two fork units share the same forward and reverse motor. It not only saves space and reduces cost, but also can ensure better synchronization of expansion and contraction of the two pallet fork units.

The technical solution 6 of the transfer system of the utility model is further improved on the basis of the technical solution 5: the forward and reverse motor is located on the side of one fork unit away from the other fork unit, and the driving gears of the two fork units Connected through cardan shaft transmission.

The technical solution 7 of the transfer system of the utility model is further improved on the basis of any one of the technical solutions 3-6: the output shaft of the forward and reverse motor is connected with a driving gear, and each fork unit There are two driving gears, and the two driving gears are respectively located on both sides of the driving gear and are meshed with the driving gear at the same time. By arranging two driving gears, the protruding distance of the middle fork can be consistent when stretching towards both sides, and the protruding length of the middle fork becomes longer compared with one driving gear.

The technical solution 8 of the transfer system of the utility model is further improved on the basis of any one of the technical solutions 3-6: the output shaft of the forward and reverse motor is connected with a driving gear, and each fork unit There are at least two pairs of driving gears, the first pair is located on both sides of the driving gear and meshes with the driving gear simultaneously, and the second pair is located on both sides of the first pair. The setting of more than two pairs of driving gears can increase the meshing length with the middle fork, thereby significantly improving the extension length of the middle fork.

The technical solution 9 of the transfer system of the utility model is further improved on the basis of any one of the technical solutions 3-6: the middle fork gear has more than two and is arranged at intervals along the length direction of the middle fork, each The middle fork gears are connected through an odd number of transmission idler gears.

Description of drawings

Fig. 1 is the front view of the transfer system place in the specific embodiment 1 of a kind of production line of the present utility model;

Fig. 2 is the top view of the specific embodiment 1 of a kind of production line of the present utility model;

Fig. 3 is the front view of the jacking machine in the specific embodiment 1 of a kind of production line of the present utility model;

Fig. 4 is the front view of the transfer device in Embodiment 1 of the utility model production line;

Figure 5 is a top view of Figure 4;

Fig. 6 is the driving structural diagram of the middle fork driven by the rotary motor in Fig. 4;

Fig. 7 is a transmission structure diagram of the upper, middle and lower forks in Fig. 4;

Fig. 8 is an explosion schematic diagram of the middle fork in Fig. 4;

Fig. 9 is an axonometric view of the upper fork in Fig. 4;

Figure 10 is an axonometric view of the lower fork in Figure 4;

Fig. 11 is the front view of the transfer system in the specific embodiment 5 of a production line of the present invention;

Fig. 12 is a top view of a specific embodiment 5 of a production line of the present invention;

Fig. 13 is a front view of the transfer system in Embodiment 6 of a production line of the present utility model;

Fig. 14 is a top view of a specific embodiment 6 of a production line of the present invention;

Fig. 15 is a structural diagram of the fork unit of the transfer device in Embodiment 7 of the production line of the present invention;

Figure 16 is a left view of Figure 15;

Figure 17 is a cross-sectional view at A in Figure 15;

Fig. 18 is a cross-sectional view at B in Fig. 15;

Fig. 19 is a cross-sectional view at C in Fig. 15;

Fig. 20 is a driving structure diagram of the fork driven by the rotary motor in Example 8 of the production line of the present invention;

In the figure: 1-transfer device, 11-stand, 12-fork unit, 121-upper fork, 1211-upper fork rack, 1212-top plate, 1213-upper fork side plate, 12131-first chute, 122-Middle fork, 1221-Middle fork rack, 1222-Middle fork gear, 12221-Rolling bearing, 1223-Drive idler, 1224-Roller, 1225-Guide block, 1226-Inner support plate, 1227-Outer support plate, 123 - Lower fork, 1231- lower fork rack, 1232- bottom plate, 1233- lower fork side plate, 12331- second chute, 1234- relief hole, 1235- limit block, 124- driving gear, 13- universal Shaft, 14-rotating motor, 15-overload protection device, 16-transmission box, 17-electrical control element, 18-driving gear;

2. Conveying route; 3. Jacking machine; 4. Body; 5. Skid; 6. Spreader; 7. Trolley; 81. Roller; 82. Chute;

Detailed ways

Embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

A specific embodiment 1 of a production line of the present utility model, as shown in FIGS. Transfer device 1 between the two conveying lines, said transferring device 1 includes a stand 11 and a pallet fork that can move horizontally between the two conveying routes on the stand, and the pallet fork is There are working positions above each conveying line, and the transfer system also includes two jacks 3 located on both sides of the transfer device 1 and respectively arranged on the two conveying lines. The two jacks 3 span the conveying Line setting, the jacking machine has a high position A higher than the fork in its moving stroke so that the jacking machine can realize the handover of goods with the fork and a low position B lower than the conveying plane on the conveying line so that the jacking machine can Realize the handover of goods with the conveying plane of the conveying line.

The two conveying lines use a carrier to convey the vehicle body. In this embodiment, the carrier is a skid 5, and the conveying plane is the cargo-carrying plane of the skid. In addition, the production line also includes a carrier positioning device for positioning the moving carrier on the conveying line. The carrier is positioned by the carrier positioning device, so that the vehicle body and the carrier can cooperate smoothly, and the vehicle body and the carrier can be smoothly matched. The smooth handover of the vehicle. The production line also includes an in-position detection system for monitoring the running position of the fork. The in-position detection system controls the fork to stop after the fork moves to the set position, so that the fork can smoothly transfer to the car body with the jacking machine.

The specific structure of the transfer device is shown in Figures 4 to 10, including a platform 11 and a pallet fork mounted on the platform 11, in this embodiment, the pallet fork includes two pallet fork units 12, The two fork units 12 are synchronously operated by the cardan shaft 13 , and the platform 11 is also provided with a rotary motor 14 for driving the cardan shaft 13 and an overload protection device 15 for overload protection of the rotary motor 14 . The stand 11 includes a platform board and support legs, and mechanism strengthening beams are arranged between the support legs, and the support legs are fixed on the foundation of the factory building or on other platforms. The overload protection device 15 includes a spring, a travel switch and a controller. When the rotating motor 14 is subjected to a large resistance, the spring is compressed, the travel switch is touched and opened, and a signal is fed back to the controller, and the controller can control the rotating motor 14 to stop rotating. .

As shown in Figures 4 and 5, the fork unit 12 includes an upper fork 121, a middle fork 122 and a lower fork 123, the lower fork 123 is fixed on the platform 11, and the middle fork 122 cooperates with the upper fork 121 and the lower fork 123 for guiding and moving respectively , the middle fork 122 and the upper fork 121 can protrude from any side of the lower fork 123 . As shown in Figures 7 and 8, the middle fork 122 includes two left and right outer support plates 1227, and an inner support plate 1226 arranged at intervals is arranged between the two outer support plates 1227, and two rolling bearings 12221 are installed between the two support plates. The middle fork gear 1222, and five transmission idler gears 1223 assembled through rolling bearings 12221 between the two middle fork gears 1222, the middle fork gear 1222 and the transmission idler gear 1223 are sequentially driven and matched, thereby realizing the synchronization of the two middle fork gears 1222 For the output action, the middle fork gear 1222 and the driving idler gear 1223 are shifting gears, and each driving idler gear 1223 needs to mesh with two gears simultaneously, so the shifting gears are selected for easy assembly. The outer sides of the two outer support plates 1227 are provided with upper and lower rows of rollers 1224 , which are respectively matched with the chute of the upper and lower forks. A plurality of guide blocks 1225 are also provided between each roller 1224 of each row of rollers 1224, so as to cooperate with the groove bottoms of the first and second chute (see later) of the upper and lower forks, so as to realize alignment of the upper fork 121 and the guide limit of the middle fork 122, so that the middle fork 122 and the upper fork 121 will not be skewed when they are stretched out.

As shown in Figure 9, the upper fork 121 includes a top plate 1212 and upper fork side plates 1213 on both sides. The two upper fork side plates 1213 and the bottom plate form a groove structure, and the upper fork tooth bar is installed on the inner bottom plate of the groove. 1211 , used to mesh with the middle fork gear 1222 to realize the movement of the upper fork 121 relative to the middle fork 122 . The opposite side of the upper fork side plate 1213, that is, the side in the groove structure, is provided with a chute, the chute is C-shaped, and is used for sliding and guiding cooperation with the upper row of rollers 1224 on the middle fork 122, and at the same time The groove bottom of the chute is used for sliding and blocking cooperation with the guide block 1225 on the middle fork 122 , so as to prevent the upper fork 121 from skewing relative to the middle fork 122 . The top plate 1212 and the two upper fork side plates 1213 can be fixed by bolts or processed from integral materials.

As shown in Figure 10, the lower fork 123 includes a bottom plate 1232 and lower fork side plates 1233 on both sides. The bottom plate 1232 and the lower fork side plates 1233 form a groove structure, and the lower fork tooth bar is installed on the bottom plate in the groove structure. 1231 , used to engage with the middle fork gear 1222 for transmission and provide a reverse force for the middle fork gear 1222 to realize the relative movement of the middle fork 122 relative to the lower fork 123 . The opposite side of the lower fork side plate 1233, that is, the side located in the groove structure, is provided with a chute, the chute is C-shaped, and is used for rolling and guiding the lower row of rollers 1224 on the middle fork 122. The groove bottom of the groove is used for sliding and blocking cooperation with the guide block 1225 on the middle fork 122 , so as to prevent the middle fork 122 from skewing relative to the lower fork 123 . The base plate and the two lower fork side plates 1233 can be fixed by bolts or processed from integral materials. The bottom plate inside the groove structure of the lower fork 123 is also provided with a limiting block 1235 to prevent the middle fork 122 from slipping off from the lower fork 123 , and the limiting block 1235 is arranged at positions close to both ends of the lower fork 123 . The bottom plate of the lower fork 123 is also provided with a relief hole 1234 at the position corresponding to the driving gear 124 during assembly, so that the driving gear 124 passes through the bottom plate and engages with the middle fork rack 1221 in the groove structure for transmission.

As shown in Figure 6, after the power of the output shaft of the rotating electrical machine 14 is transmitted to the cardan shaft 13, the two ends of the cardan shaft 13 are connected with the driving gear 18 to drive the driving gear 124 respectively engaged with the driving gear 18 to rotate, that is The two driving gears 124 are respectively located on two sides of the driving gear 18 and mesh with the driving gear 18 at the same time. The driving of the center fork 122 is realized through the cooperation of the drive gear 124 and the center fork rack 1221. Compared with the traditional chain sprocket method, this method has the characteristics of high precision and is not affected by loose and tight edges. Compared with the traditional screw In terms of the driving method of the nut, the space occupied by the gear in the moving direction of the middle fork 122 is significantly smaller, which facilitates the two-way movement of the middle fork 122, while the traditional screw nut driving method is limited by the length of the screw and the extension length of the fork. Requirements, generally can not achieve two-way expansion, generally one-way one-way expansion, which greatly limits its scope of application. An electrical control unit 17 is also provided on the upper fork. A transmission box is arranged at the bottom of the lower fork, and the above-mentioned driving gear and driving gear are located in the transmission box.

In the actual use of the transfer device, when the fork needs to move between the two working positions, the controller first controls the rotation of the rotating motor 14 to drive the cardan shaft 13 to rotate, and at the same time drives the two fork units 12 The driving gear 18 of the driving gear 18 rotates, and the driving gear 18 drives the two driving gears 124 meshed with it to rotate synchronously and in the same direction, thereby driving the middle fork rack 1221 meshed with it to move, that is, the middle fork 122 stretches out to one side of the working position, and The movement of the fork 122 drives the middle fork gear 1222 on it to rotate, and then drives the upper fork tooth bar 1211 meshed with it to move, that is, the upper fork 121 can extend relative to the middle fork 122. Since the upper fork 121 is located on the middle fork 122, It itself will move with the middle fork 122, and the result of the superposition of the two speeds is that the upper fork 121 extends at twice the speed of the middle fork 122, thereby realizing high-efficiency telescopic movement. When the upper fork 121 moves to one side of the working position The motor stops, and the goods are placed on the upper fork 121 with the jacking machine; the rotating motor 14 is controlled to reverse, and the same driving process controls the upper fork 121 to retract quickly, and the upper fork 121 continues to drive the rotating motor 14 when it is retracted to the original intermediate position Rotate, now the upper fork 121 begins to stretch out to the other side working position, controls the rotation motor 14 to stop when stretching out to the other side working position, then cooperates jacking machine to take off goods from pallet fork, then Then control the rotating motor 14 to reverse to retract the upper fork 121 and the middle fork 122 .

In the actual use of the production line of the present utility model, take the example of transferring the vehicle body from the right conveying line to the left conveying line. Initially, the fork is located in the center, and the right conveying line will carry the vehicle body After being transported to the right side lifter corresponding to the conveying line and positioned, the right side lifter rises to the high position A to jack up the body on the carrier, and the carrier is separated from the body. After that, the forks of the transfer device Stretch out to the bottom of the vehicle body to the right, and after the right jacking machine descends to place the vehicle body on the cargo fork, it descends to the low position B to jack up another vehicle body. The fork with the vehicle body moves horizontally to the upper working position of the left conveying line, and the left jacking machine on the left conveying line rises to the high position A to jack up the vehicle body on the fork, and the fork retracts and moves to the right to transport another body. At this time, the carrier on the left conveying line is transported in place and positioned accurately, and the left jacking machine descends to the low position B to place the car body on the carrier on the left conveying track to complete the transfer of the car body.

In the above transfer process, the transfer system realizes the transfer process of lifting, transferring, and lowering the car body through three independent devices, and the three devices can return to transport the next car body after completing their own functions, so that the entire transfer The system can carry out the transfer operation of three car bodies at the same time, which greatly improves the transfer efficiency of the transfer system and speeds up the production rhythm of the entire production line.

The difference between the specific embodiment 2 of a production line of the present invention and the specific embodiment 1 is that the two conveying routes can be located on one side of the transfer device. Transfer of car bodies on different conveyor lines. At this time, since the fork will interfere with the action of the jacking machine on the adjacent side when it is transferred, the transfer system can simultaneously realize the transfer action of the two vehicle bodies.

The difference between specific embodiment 3 of a production line of the present utility model and specific embodiment 1 is that there are three, four or more transmission lines, for example, two transmission lines are arranged on both sides of the transfer device, increasing The extended length of the fork of the large transfer device allows the transfer device to transfer the car bodies on the four conveying lines.

The difference between Embodiment 4 of a production line of the present utility model and Embodiment 1 is that the two conveying lines can be located on a straight line, and at this time, the transfer device is also arranged across the conveying lines.

The difference between Embodiment 5 of a production line of the present utility model and Embodiment 1 is that: as shown in Figure 10 or Figure 11, one of the two conveying lines uses a spreader 6 (aerial conveying line) to convey the vehicle body , and the other adopts skid 5 to convey the vehicle body.

The difference between specific embodiment 6 of a production line of the present utility model and specific embodiment 1 is that: as shown in Figure 10 or Figure 11, one of the two conveying lines uses a trolley 7 (ground friction line) to transport the vehicle body , and the other adopts skid 5 to convey the vehicle body.

The difference between the specific embodiment 7 of a production line of the present utility model and the specific embodiment 1 is: as shown in Fig. 15 to Fig. 19 , a row of rollers 81 is arranged on the opposite side of the upper fork side plate 1213 of the upper fork 121, Correspondingly, on the outer sides of the two outer support plates of the middle fork 122 are provided sliding grooves 82 adapted thereto, and the two are guided and slidably matched.

The difference between the specific embodiment 8 of a production line of the present invention and the specific embodiment 1 is that: as shown in Figure 20, two driving gears are meshed on both sides of the driving gear at the same time, that is, the first pair of driving gears; The outer side of the drive gear meshes with a pair of reversing transmission gears 90, and the outer sides of this pair of reversing transmission gears 90 mesh with the second pair of driving gears respectively, and the reversing transmission gear 90 can transmit the power of the first pair of driving gears to the second pair of driving gears. Drive the gears and achieve reversing to ensure that the rotation directions of the four drive gears are consistent and rotate synchronously. The four drive gears mesh with the middle fork rack 1221 at the same time. This setting method can increase the meshing length with the middle fork rack 1221, thereby Extend the protruding length of the middle fork 122 .

The difference between specific embodiment 9 of a production line of the present invention and specific embodiment 1 is that the number of transmission idlers can also be replaced by an odd number such as one, three or seven, and the odd number can ensure that the middle fork on both sides The gears rotate in the same direction; the transmission idler gear can also be assembled on the two outer support plates through needle bearings; the rollers can also be replaced by sliders; the driving gears are not limited to two in embodiment 1 and five in embodiment 8, It is also possible to set only one driving gear, and now the driving gear is no longer provided, and the driving gear is directly connected to the cardan shaft; two rotating motors can also be arranged, and the output shafts of the two rotating motors are respectively connected to the driving shafts of the two pallet fork units. The gear transmission is coordinated, and then the two rotating motors are given the same frequency signal to ensure the synchronous action of the two motors; it can also be set between the two fork units through the double output shaft motor, and the two output shafts of the double output shaft motor are respectively connected to the Drive gear transmission connection of the two fork units.

A specific embodiment of a transfer system of the present utility model has the same specific structure as that of the transfer system in each embodiment of the above-mentioned production line, and will not be repeated here.

Claims (21)

1. a kind of production line, including at least two strip transmission line roads and conveyer system, it is characterised in that：The conveyer system includes Shifting apparatus, the shifting apparatus include stand, and linear reciprocation movement is equipped with pallet fork, the pallet fork in the horizontal direction on stand There is the working position above each conveying circuit in its shift motion, corresponding to the working position on every strip transmission line is provided with Jack, the jack have in its shift motion higher than a high position for pallet fork and less than the transporting flat on conveying circuit Low level.

2. production line according to claim 1, it is characterised in that：The conveying circuit has two, two strip transmission line road positions In the both sides of shifting apparatus.

3. production line according to claim 2, it is characterised in that：Two strip transmission line roads are parallel to each other.

4. production line according to claim 2, it is characterised in that：The pallet fork includes at least one pallet fork unit, pallet fork Unit includes the middle fork of the lower fork fixed relative to stand and the cooperation of lower fork guiding movement and pitches what guiding movement coordinated with middle Upper fork, middle fork is provided with middle prong bar, during pallet fork unit also includes at least one and middle prong bar engaged transmission to drive Mobile drive gear is pitched, at least one middle prong wheel is additionally provided with middle fork, upper fork is provided with and middle fork meshed transmission gear Upper prong bar, lower fork is provided with the lower fork rack with middle fork meshed transmission gear, by wherein when middle fork moves relative to lower fork Prong wheel engages with lower fork rack and drives middle fork pinion rotation, middle prong wheel engaged with upper prong bar and drive it is upper fork relative to Middle fork is moved, and the clockwise and anticlockwise motor for driving drive gear to rotate is also equipped with stand.

5. production line according to claim 4, it is characterised in that：Pallet fork unit has two.

6. production line according to claim 5, it is characterised in that：Two same clockwise and anticlockwise motors of pallet fork units shared.

7. production line according to claim 6, it is characterised in that：Clockwise and anticlockwise motor is positioned at a pallet fork unit away from another The side of individual pallet fork unit, the drive gear of two pallet fork units are connected by universal drive shaft.

8. according to the production line described in any claim in claim 4-7, it is characterised in that：The clockwise and anticlockwise motor it is defeated Driving gear is connected with shaft, the drive gear of each pallet fork unit there are two, and two drive gears are located at driving tooth respectively Simultaneously engaged simultaneously with driving gear wheel both sides.

9. according to the production line described in any claim in claim 4-7, it is characterised in that：The clockwise and anticlockwise motor it is defeated Driving gear is connected with shaft, at least two pairs of the drive gear of each pallet fork unit, first is pointed to driving gear both sides And engaged simultaneously with driving gear, second is pointed to first pair of both sides.

10. according to the production line described in any claim in claim 4-7, it is characterised in that：The middle prong wheel has two It is arranged at intervals more than individual and along the length direction of middle fork, being driven idle pulley by odd number between each middle prong wheel is connected.

11. according to the production line described in any claim in claim 1-7, it is characterised in that：Set on the conveying circuit It is equipped with the carrier for conveying workpieces.

12. production line according to claim 11, it is characterised in that：The carrier is skid or suspender or chassis.

A kind of 13. conveyer system, it is characterised in that：Including shifting apparatus, the shifting apparatus includes stand, along level on stand Direction linear reciprocation movement is equipped with pallet fork, and the conveyer system is also respectively arranged at each conveying when in use including at least two Jack on circuit, the jack have in its shift motion higher than a high position for pallet fork and less than on conveying circuit The low level of transporting flat.

14. conveyer system according to claim 13, it is characterised in that：The jack has two, and two jacks exist It is located at the both sides of shifting apparatus during use respectively.

15. conveyer system according to claim 14, it is characterised in that：The pallet fork includes at least one pallet fork unit, Pallet fork unit includes the lower fork relative to stand fixation, the middle fork coordinated with lower fork guiding movement and matched somebody with somebody with middle fork guiding movement The upper fork closed, middle fork are provided with middle prong bar, pallet fork unit also including it is at least one with the middle prong bar engaged transmission to drive Mobile drive gear is pitched in dynamic, at least one middle prong wheel is additionally provided with middle fork, upper fork is provided with engages biography with middle prong wheel Dynamic upper prong bar, lower fork are provided with the lower fork rack with middle fork meshed transmission gear, and middle fork passes through when being moved relative to lower fork Wherein prong wheel engages with lower fork rack and drives middle fork pinion rotation, and middle prong wheel engages with upper prong bar and drives upper fork phase For middle fork movement, the clockwise and anticlockwise motor for driving drive gear to rotate is also equipped with stand.

16. conveyer system according to claim 15, it is characterised in that：Pallet fork unit has two.

17. conveyer system according to claim 16, it is characterised in that：The same rotating electricity of two pallet fork units shareds Machine.

18. conveyer system according to claim 17, it is characterised in that：Clockwise and anticlockwise motor is located at a pallet fork unit and deviated from The side of another pallet fork unit, the drive gear of two pallet fork units are connected by universal drive shaft.

19. according to the conveyer system described in any claim in claim 15-18, it is characterised in that：The rotating electricity Driving gear is connected with the output shaft of machine, the drive gear of each pallet fork unit there are two, and two drive gears are located at respectively Simultaneously engaged simultaneously with driving gear driving gear both sides.

20. according to the conveyer system described in any claim in claim 15-18, it is characterised in that：The rotating electricity Driving gear is connected with the output shaft of machine, at least two pairs of the drive gear of each pallet fork unit, first is pointed to driving tooth Wheel both sides are simultaneously engaged simultaneously with driving gear, and second is pointed to first pair of both sides.

21. according to the conveyer system described in any claim in claim 15-18, it is characterised in that：The middle prong wheel There is two or more and be arranged at intervals along the length direction of middle fork, being driven idle pulley transmission by odd number between each middle prong wheel connects Connect.