CN205263222U - Automatic change aging testing production line - Google Patents

Abstract

The utility model belongs to the technical field of the aging testing technique and specifically relates to indicate an automatic change aging testing production line, the aging testing production line includes a rectangular aging testing frame, and the one end of aging testing frame sets up feeding and conveying device, and the other end of aging testing frame sets up ejection of compact transmission device, sets up the ageing electronic unit's of a transport removal material feeding unit on the transmission frame, after ageing electronic unit sends feeding and conveying device to, removing material feeding unit and will ageing electronic unit and take out from feeding and conveying device, carry through the transmission frame, the electronic unit that will age sends into the corresponding ageing position of placing, accomplishes the back when ageing and test, removes material feeding unit and will age electronic unit and place from ageing and take out, will age electronic unit through the transmission frame and send into ejection of compact transmission device, will age electronic unit through ejection of compact transmission device and see off, the full -automatic completion of process, no potential safety hazard need not to test the station and many times by putting, has promoted the productivity, raises the efficiency.

Description

An automated aging test production line

technical field

The utility model relates to the technical field of aging testing, in particular to an automatic aging testing production line.

Background technique

With the development of society, people have higher and higher requirements for the quality of electronic products. In order to improve the quality of electronic products, it is necessary to carry out aging tests on electronic products before leaving the factory. In the prior art, when performing aging tests on electronic products, the test process is generally to manually transfer the products from the previous station through the belt when feeding. Put the product into the aging fixture to form aging electronic parts, then put the aging electronic parts into the aging place of the aging test rack for aging, after the aging is completed, manually take out the aging electronic parts for various performance tests, test When discharging after completion, put the aging electronic parts back to the belt one by one and transport them to the next station. Obviously, in this kind of production process, all aging and testing stations are manually operated, which takes up a lot of human resources, and there are potential safety hazards for personnel to suffer from work-related injuries. Moreover, products are placed and placed many times at aging and testing stations, which limits the expansion of production capacity. Improvement, not only low efficiency but also unstable product quality, unable to meet the needs of mass product testing.

Utility model content

The utility model aims to provide an automatic aging test production line for solving the above problems in view of the deficiencies in the manual operation in the current aging test of electronic products.

In order to achieve the above object, the utility model adopts the following technical solutions:

An automatic aging test production line, the aging test production line includes a long aging test frame, a number of aging placement positions are set on the aging test frame, a feeding transmission device is arranged at one end of the aging test frame, and the other end of the aging test frame Set the discharge transmission device, and set a transmission frame on the side of the aging test frame. On the transmission frame, a device is set to move the aging electronic parts from the feeding transmission device to the aging placement position, and to move the aging electronic parts from the aging placement position to the discharge position. Mobile feeder for conveyors.

Preferably, the feeding transmission device includes a feeding frame, the feeding frame is provided with a pair of feeding conveyor belts driven by a feeding motor, and a feeding lift is arranged below the feeding frame. device, the feeding lifting device acts as a feeding lifting frame arranged above the feeding frame.

Preferably, the feeding lifting device is a cylinder.

Preferably, feed guide rods are provided at four corners of the feed lifting frame, and the feed guide rods pass through the feed frame.

Preferably, the feed frame is provided with a feed block at one end of the feed conveyor belt in the conveying direction.

Preferably, the feeding transmission device further includes a clamping device arranged above the feeding rack for clamping aging electronic parts on the feeding rack, and the clamping device includes a fixed On the clamping mounting plate of the aging test frame, a pair of clamping claws are slidably arranged on the clamping mounting plate, and a closing cylinder is set between the two clamping claws.

Preferably, the feeding lifting device is a double-stroke cylinder.

Preferably, a slide rail device is provided between the clamping mounting plate and the clamping claw.

Preferably, the clamping claw is a bent piece connected to the cantilever beam of the boom.

Preferably, the mobile feeding device includes a stroke guide rail arranged between the feeding conveying device and the discharging conveying device, a moving motor is installed on the moving conveying frame, and the moving motor drives the moving conveying frame on the stroke guide rail Movement, the bottom of the mobile conveyor frame is provided with a feeding lifting mechanism, and at least one automatic feeding and retrieving mechanism is connected above the feeding lifting mechanism.

Preferably, two automatic feeding and retrieving mechanisms are connected at intervals above the feeding lifting mechanism.

Preferably, a long rack is arranged on the travel guide rail, the moving motor is arranged at the bottom of the moving conveying frame, and the moving motor functions as a circular dial meshing with the long rack.

Preferably, the feeding and lifting mechanism includes a lifting motor arranged to move the bottom of the conveying frame, the lifting motor drives a threaded rod, and the threaded rod acts on a nut arranged on the automatic feeding and retrieving mechanism.

Preferably, the automatic feeding and retrieving mechanism includes a support base plate placed horizontally, a rodless cylinder is arranged in the middle of the support base plate, and the rodless cylinder is connected to a sliding seat, and both sides above the sliding seat are A pick-and-feed device that acts as a pick-up cylinder to pick up and deliver aging electronic parts is provided.

Preferably, the pick-up and delivery device is a bent plate provided with steps, and the front end of the bent plate is provided with a hooking nail for hooking aging electronic components.

Preferably, the discharge conveying device includes a discharge frame, the discharge frame is provided with a pair of discharge conveyor belts driven by a discharge motor, and a discharge lift is arranged below the discharge frame. device, the function of the discharge lifting device is to pass through the discharge lifting frame above the discharge frame.

Preferably, two discharge conveying devices are arranged at intervals in the height direction of the aging test rack.

Preferably, the four corners of the discharge lifting frame are provided with discharge guide rods, and the discharge guide rods pass through the discharge frame.

Preferably, the discharging lifting device is a lifting cylinder arranged under the discharging frame, and the cylinder arm of the lifting cylinder acts upward on the discharging lifting frame.

Preferably, the discharge lifting device is a flat-push cylinder placed flat on the discharge frame, the cylinder arm of the flat-push cylinder acts as an inclined-plane push block, and the slope of the inclined-plane push block acts on the discharge tray. Below the shelf.

The beneficial effect of the utility model is that, in an automatic aging test production line of the utility model, the aging test production line includes a long aging test frame, and several aging placement positions are arranged on the aging test frame, and one end of the aging test frame The feeding transmission device is set, the other end of the aging test frame is provided with a discharge transmission device, and a transmission frame is set on the side of the aging test frame, and an aging placement position for moving the aging electronic parts from the feeding transmission device to the aging test frame is set on the transmission frame. Move the aging electronic parts from the aging placement position to the mobile feeding device of the discharge transmission device; when the aging electronic parts are fed into the feeding material from the upstream line, they enter the feeding transmission device, and the mobile feeding device transfers the aging electronic parts from the feeding transmission device Take it out, and transport it through the transmission rack, and send the aging electronic parts into the corresponding aging placement position. After the aging and testing are completed, the mobile feeding device will take out the aging electronic parts from the aging placement position, and transport them through the transmission rack. The electronic parts are sent into the discharge transmission device, and the aging electronic parts are sent out through the discharge transmission device; the automatic aging test production line of the utility model can automatically complete the feeding, moving feeding and discharging, and it is fully automatic, without safety hazards and without testing The workstations are moved and placed many times, which improves production capacity, improves efficiency, guarantees product quality, and meets the needs of large-scale product aging tests.

The feeding transmission device of the present utility model comprises a feeding frame, a pair of feeding conveyor belts driven by a feeding motor are arranged on the feeding frame, a feeding lifting device is arranged below the feeding frame, and the feeding lifting device Function 1: The feeding lifting frame set above the feeding frame; when the aging electronic parts are fed into the feeding material from the upstream line, they enter the feeding conveying device, and the feeding motor drives the feeding conveyor belt to input the aging electronic parts into the The material lifting and lowering device moves upwards, driving the feeding lifting frame to rise, and lifting the aging electronic parts of the feeding, which is convenient for the next step of moving and feeding; the utility model feeding and conveying device automatically feeds and automatically raises Realize automated production, improve work efficiency and reduce production costs.

The mobile feeding device of the present utility model comprises a stroke guide rail arranged between the feeding conveying device and the discharging conveying device, a moving motor is installed on a moving conveying frame, and the moving motor drives the moving conveying frame to move on the stroke guide rail, and the moving conveying There is a feeding and lifting mechanism at the bottom of the frame, and at least one automatic feeding and retrieving mechanism is connected above the feeding and lifting mechanism; The feeding and retrieving mechanism lifts to the retrieving position and realizes retrieving; after retrieving the material, the mobile motor moves the moving conveyor frame on the travel guide rail to the aging part placement position, and the feeding lifting mechanism lifts the feeding and retrieving mechanism to the aging part placement position and Place the aging electronic parts in the specific place for aging test; after the aging test of the aging electronic parts is completed, the moving motor will move the conveyor frame to the place where the aging parts are placed on the travel guide rail, and the feeding and lifting mechanism will lift the feeding and retrieving mechanism Go to the place where the aging parts are placed and take out the aging electronic parts, then move the motor to move the moving conveyor frame on the travel guide rail to the discharge transmission device, the feeding and lifting mechanism will lift the feeding and retrieving mechanism to a suitable position and put the aging electronic parts into the outlet The material transmission device is waiting for the material to be sent out; under the control of the system, the practical mobile feeding device realizes automatic material retrieving, and automatically sends the aging electronic parts to the place where the aging parts are placed. After the test is completed, it realizes automatic feeding after taking the material The discharge transmission device is ready for discharge, and the whole process is fully automated, improving work efficiency and reducing production costs.

The discharge transmission device of the present utility model comprises a discharge frame, a pair of discharge conveyor belts driven by a discharge motor are arranged on the discharge frame, a discharge lifting device is arranged below the discharge frame, and a discharge lifting device is arranged on the discharge frame. The function of the lifting device is to pass through the discharge lifting frame above the discharge frame; when the incoming aging electronic parts are fed in, the discharging lifting device will lift the discharging lifting frame, and the material lifting frame will put the aging electronic parts Afterwards, the discharge lifting device descends, and after the aging electronic parts touch the discharge conveyor belt, the discharge motor outputs the aged electronic parts through the discharge conveyor belt; the practical discharge transmission device realizes automatic discharge under the control of the system The material is lifted and lowered, and the electronic parts are automatically aged for output. The whole process is fully automated, improving work efficiency and reducing production costs.

Description of drawings

Fig. 1 is the structural representation of automatic aging test production line of the present utility model;

Fig. 2 is a schematic structural view of the utility model feeding transmission device;

Fig. 3 is a structural schematic diagram of another orientation of the utility model feeding transmission device;

Fig. 4 is the structural representation of the utility model mobile feeding device;

Fig. 5 is a structural schematic diagram of another orientation of the mobile feeding device of the present invention;

Fig. 6 is a structural schematic diagram of the utility model discharging conveying device;

Fig. 7 is a structural schematic diagram of another orientation of the discharge conveying device of the present invention.

detailed description

Below in conjunction with accompanying drawing 1-7, the utility model is further elaborated:

The utility model relates to an automatic aging test production line, an automatic aging test production line. The aging test production line includes a long aging test frame 1, and several aging placement positions 11 are arranged on the aging test frame 1, and one end of the aging test frame 1 is set The feeding transmission device 2, the other end of the aging test frame 1 is provided with a discharge transmission device 3, a transmission frame 4 is provided on the side of the aging test frame 1, and a transmission frame 4 is installed on the transmission frame 4 to move the aging electronic parts from the feeding transmission device 2 The aging placement position 11, the mobile feeding device 5 for moving the aging electronic components from the aging placement position 11 to the output conveying device 3.

As a preferred embodiment, the feed transmission device 2 of the present embodiment includes a feed frame 21, the feed frame 21 is provided with a pair of feed conveyor belts 23 driven by a feed motor 22, and the feed frame 21 A feeding lifting device 24 is arranged below the feeding lifting device 24, and the feeding lifting device 24 acts on a feeding lifting frame 25 arranged on the top of the feeding frame 21; when the incoming material enters, the feeding motor 22 drives the feeding conveyor belt 23, Place the detection piece above the feeding lifting frame 25, and when it reaches a suitable position, the cylinder as the feeding lifting device 24 will raise the feeding lifting frame 25, thereby lifting the detection piece, so that the subsequent mobile feeding device 5 can take it out. material;

As a preferred embodiment, feed guide rods 26 are provided at the four corners of the feed lifting frame 25, and the feed guide rods 26 pass through the feed frame 21, so as to maintain the stable operation of the feed lifting frame 25 during the lifting process.

In order to prevent the detection part from moving too far on the feed conveyor belt 23 during the feed, a feed stopper 27 is set at the end of the feed frame 21 in the feed conveyor belt 23 transmission direction, and the pipe position is carried out.

In this equipment, in order to further improve the production efficiency and realize the synchronous transmission of the double detection parts, the present embodiment also includes a feed transmission device 2 which is arranged on the top of the feed frame 21 for clamping and feeding on the lifting frame 25. The opening and closing clamping device 2` of aging electronic parts, the opening and closing clamping device 2` includes a clamping mounting plate 2`-1 fixed on the aging test frame 1, and a pair of clamping mounting plates 2`-1 are slidably arranged Clamping claws 2`-2, a closing cylinder 2`-3 is set between the two clamping claws 2`-2, and the opening and closing cylinder 2`-3 drives the clamping claws 2`-2 to grip the test piece; feeding The lifting device 24 is a double-stroke cylinder; the double-stroke cylinder can raise the feeding lifting frame 25 to two different heights, and when the feeding lifting frame 25 rises to the highest position, it is just at the horizontal position of the opening and closing clamping device 2` , after the detection piece is clamped by the opening and closing clamping device 2`, the double-stroke cylinder can drive the feeding lifting frame 25 to drop to the lowest position for the second feeding and retrieving, and the double-stroke cylinder drives the feeding lifting again The detection piece on the frame 25 reaches the second highest position, so that the subsequent mobile feeding device 5 takes materials to carry out the mobile feeding and taking of two aging electronic parts; this can effectively improve efficiency and reduce production costs. In order to keep the movement stable, a slide rail device 2`-4 is set between the clamping mounting plate 2`-1 and the clamping claw 2`-2 in this embodiment; in addition, the clamping claw 2`-2 in this embodiment is a boom The bending pieces 2`-6 connected by the suspension beams 2`-5 have simple structure, stable and reliable performance, and effectively reduce the cost.

The mobile feeding device 5 of the present utility model comprises a stroke guide rail 52 arranged between the feeding conveying device 2 and the discharging conveying device 3, a moving conveying frame 54 is equipped with a moving motor 53, and the moving conveying frame 54 is driven by the moving motor 53 Moving on the stroke guide rail 52, a feeding elevating mechanism 55 is arranged at the bottom of the moving conveyor frame 54, and an automatic feeding and retrieving mechanism 56 is connected at least above the feeding elevating mechanism 55. One piece of automatic feeding and retrieving mechanism 56, the spacing distance of two automatic feeding and retrieving mechanisms 56 is set to a certain fixed value, so as to form correspondence with the aging test position up and down spacing position of the setting of aging test rack 1; The material retrieving mechanism 56 is correspondingly matched with the double feeding transmission of the feeding transmission device 2 of this embodiment.

In this embodiment, a long rack 521 is set on the stroke guide rail 52, and the moving motor 53 is arranged on the bottom of the moving conveyor frame 54. The motor 53 drives the circular dial 531 to make the transport frame move on the travel guide rail 52 .

In order to realize free lifting, the feeding lifting mechanism 55 includes a lifting motor 551 arranged at the bottom of the mobile conveying frame 54, and the lifting motor 551 drives a threaded mandrel 552, and the threaded mandrel 552 acts on a nut 565 arranged on the automatic feeding and retrieving mechanism 56 , the screw mandrel 552 of the lifting motor 551 rotates in the driving nut 565, thereby realizing the automatic feeding and retrieving mechanism 56 to rise or fall.

The automatic feeding and retrieving mechanism 56 includes a support base plate 561 placed horizontally. A rodless cylinder 562 is arranged in the middle of the support base plate 561. The rodless cylinder 562 is connected to a sliding seat 563. A reclaiming cylinder is arranged on both sides above the sliding seat 563. 564 is used to pick up and send the pick-up device 57 of aging electronic parts; the pick-up device 57 is a bent plate with a step position, and the front end of the bent plate is provided with a hooking nail 571 to hook the aged electronic parts; , the rodless cylinder 562 drives the fetching device 57 to move forward, and when it is in place, the fetching cylinder 564 rises up, so that the hooking nail 571 on the bending plate hooks the hole at the bottom of the aging electronic part; After the parts, the retrieving cylinder 564 descends, and the rodless cylinder 562 drives the retrieving and delivering device 57 to retract and feed.

The discharge conveying device 3 comprises a discharge frame 31, a pair of discharge conveyor belts 33 driven by a discharge motor 32 are arranged on the discharge frame 31, and a discharge lifting device 34 is arranged below the discharge frame 31, The effect of the material lifting device 34 is to pass through the discharge lifting frame 35 above the discharge frame 31. After the discharge lifting device 34 rises, it will drive the discharge lifting frame 35 to lift upwards, which is convenient for moving the feeding device 5 to feed and move the material. After device 5 feeding was completed, the discharge elevating device 34 descended, and the detection pieces on the discharge support frame 35 were conveyed out by the discharge conveyor belt 33 to facilitate the production of the next step.

In order to improve production efficiency and reduce costs, the aging test rack 1 of this embodiment is provided with two discharge transmission devices 3 at a distance in the height direction; it is suitable for connecting two automatic feeding and retrieving mechanisms 56 at a distance above the feeding lifting mechanism 55 .

The discharge lifting frame 35 of this embodiment is provided with discharge guide rods 351 at the four corners, and the discharge guide rods 351 pass through the discharge frame 31; the stable operation of the discharge support frame 35 is maintained during the lifting process.

The discharge lifting device 34 of the present embodiment can be in various forms. Among the two discharge transmission devices 3, the discharge lifting device 34 below is set to be a lift cylinder arranged below the discharge frame 31, and the cylinder of the lift cylinder The arm acts upwards on the discharge support frame 35; a simple form is also provided in this embodiment, and the discharge elevating device 34 above is set to be a horizontal push cylinder placed on the discharge frame 31, and the cylinder of the horizontal push cylinder Arm effect one inclined-plane push block 36, the inclined-plane of inclined-plane push block 36 acts on the below of discharging support frame 35, and cylinder action inclined-plane push block 36 can upwards lift certain height with discharge support frame 35, convenient feeding.

A kind of automatic aging test production line of the present utility model, described aging test production line comprises a strip aging test frame 1, and a plurality of aging placement positions 11 are arranged on the aging test frame 1, and one end of aging test frame 1 is provided with feeding transmission Device 2, the other end of the aging test frame 1 is provided with a discharge transmission device 3, and a transmission frame 4 is provided on the side of the aging test frame 1, and a transmission frame 4 is provided on the transmission frame 4 to move and aging the aging electronic parts from the feeding transmission device 2. Placement position 11, move the aging electronic parts from the aging placement position 11 to the mobile feeding device 5 of the discharge conveying device 3; when the aging electronic parts are fed into the feed from the upstream line, enter the feeding conveying device 2, and move the feeding device 5 Take out the aging electronic parts from the feeding transmission device 2, and transport them through the transmission frame 4, and send the aging electronic parts into the corresponding aging placement position 11. After the aging and testing are completed, the mobile feeding device 5 will move the aging electronic parts from the aging The placement position 11 is taken out, and transported by the transmission frame 4, the aging electronic parts are sent to the discharge transmission device 3, and the aging electronic parts are sent out through the discharge transmission device 3; the automatic aging test production line of the utility model can automatically complete the feeding , Mobile feeding and discharging, fully automatic, no safety hazards, no need for multiple handling by the test station, increased production capacity, improved efficiency, guaranteed product quality, and met the needs of large-scale product aging tests.

The feeding transmission device 2 of the present utility model comprises a feeding frame 21, a pair of feeding conveyor belts 23 driven by a feeding motor 22 are arranged on the feeding frame 21, and a feeding lifting mechanism is arranged below the feeding frame 21. Device 24, feeding lifting device 24 acts on the feeding lifting frame 25 that is arranged on the top of feeding frame 21; Drive the feeding conveyor belt 23 to input the aging electronic parts, and the feeding lifting and lowering device moves upwards to drive the feeding lifting frame 25 to lift up the feeding aging electronic parts to facilitate the next step of moving and feeding; The new feeding conveying device 2 automatically feeds and lifts up automatically, realizing automatic production, improving work efficiency and reducing production costs.

The embodiments described above are only preferred examples of the utility model, and are not intended to limit the scope of implementation of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the patent scope of the utility model, All should be included in the utility model patent application scope.

Claims (10)

1. an automatic aging test production line, it is characterized in that, described aging test production line comprises a strip aging test frame (1), on described aging test frame (1), some aging placement positions (11) are set, and aging test One end of the frame (1) is provided with a feeding transfer device (2), the other end of the aging test frame (1) is provided with a discharge transfer device (3), and a transfer frame (4) is arranged on the side of the aging test frame (1). The transmission rack (4) is provided with an aging placement position (11) for aging electronic parts from the feeding transfer device (2), and a discharging transfer device (3) for moving aging electronic parts from the aging placement position (11) The mobile feeding device (5). 2. A kind of automatic aging test production line according to claim 1, it is characterized in that: described feeding transmission device (2) comprises a feeding frame (21), and described feeding frame (21) is provided with a A pair of feeding conveyor belts (23) driven by a feeding motor (22), a feeding lifting device (24) is arranged below the described feeding frame (21), and the described feeding lifting device (24) acts as a The feeding lifting frame (25) that is arranged on feeding frame (21) top. 3. A kind of automatic aging test production line according to claim 2, it is characterized in that: described feeding conveying device (2) also comprises a device that is arranged on feeding frame (21) in order to clamp feeding lifting The opening and closing clamping device (2`) of aging electronic parts on the rack (25), the opening and closing clamping device (2') includes a clamping installation plate (2'-1) fixed on the aging test rack (1) ), a pair of clamping claws (2`-2) are slidingly set on the clamping mounting plate (2`-1), and a combined cylinder (2`-3) is set between the two clamping claws (2`-2). 4. A kind of automatic aging test production line according to claim 1, it is characterized in that: described mobile feeding device (5) comprises a stroke that is arranged between feeding conveying device (2) and discharging conveying device (3) Guide rail (52), a mobile delivery frame (54) installs a mobile motor (53), and described mobile delivery frame (53) drives mobile delivery frame (54) to move on stroke guide rail (52), and described mobile delivery frame (54 ) is provided with a feeding elevating mechanism (55), and at least an automatic feeding and retrieving mechanism (56) is connected above the feeding elevating mechanism (55). 5. A kind of automatic aging test production line according to claim 4, it is characterized in that: a long rack (521) is set on the travel guide rail (52), and the moving motor (53) is set on the moving conveying frame ( 54) at the bottom, the mobile motor (53) acts on a circular dial (531) meshed with the long rack (521). 6. A kind of automatic burn-in test production line according to claim 4, it is characterized in that: described feeding elevating mechanism (55) comprises a lifting motor (551) that is provided with the bottom of mobile delivery frame (54), and described elevating motor (551) transmission action screw mandrel (552), the screw mandrel (552) effect is arranged on the nut (565) on the automatic feeding and retrieving mechanism (56). 7. An automated aging test production line according to claim 4, characterized in that: the automatic feeding and retrieving mechanism (56) includes a horizontally placed support base plate (561), and the middle part of the support base plate (561) A rodless cylinder (562) is set, and the rodless cylinder (562) is connected with a sliding seat (563), and a reclaiming cylinder (564) is arranged on both sides above the sliding seat (563) to take A pick-up device (57) for sending aged electronic parts; the pick-up device (57) is a bent plate provided with steps, and a hooking nail (571) for hooking aged electronic parts is set at the front end of the bent plate . 8. A kind of automatic aging test production line according to claim 1, it is characterized in that: described discharge conveying device (3) comprises a discharge frame (31), and described discharge frame (31) is provided with a A pair of discharge conveyor belts (33) driven by a discharge motor (32), a discharge lifting device (34) is arranged below the discharge frame (31), and the discharge lifting device (34) acts as a A discharge lifting frame (35) is installed above the discharge frame (31); two discharge transmission devices (3) are arranged at intervals in the height direction of the aging test frame (1). 9. A kind of automatic aging test production line according to claim 8, characterized in that: the discharge lifting device (34) is a lift cylinder arranged below the discharge frame (31), the cylinder arm of the lift cylinder Act upwards on the discharge lifting frame (35). 10. A kind of automatic aging test production line according to claim 8, it is characterized in that: the discharge lifting device (34) is a horizontal push cylinder placed on the discharge frame (31), and the horizontal push The cylinder arm of the cylinder acts on an inclined-plane pushing block (36), and the inclined-plane of the inclined-plane pushing block (36) acts on the below of the discharging lifting frame (35).