77results about "Poultry processing" patented technology

This utility model discloses a poultry slaughtering spraying device, including a water tank. A spraying mechanism is provided on one side of the water tank. The spraying mechanism includes a housing, the bottom of which is fixedly connected to the water tank. A water pump is connected to the bottom left side of the water tank. A corrugated pipe is connected to one side of the water pump, and a nozzle is connected to one side of the corrugated pipe. This poultry slaughtering spraying device, through the spraying mechanism, allows poultry to be hung on hooks. Rotating a lead screw moves a threaded sleeve, which in turn moves a connecting frame, which in turn moves a vertical rod, thus widening the cut-off portion. The water pump is then activated by a controller to extract water from the bottom of the water tank and spray it onto the poultry surface through the corrugated pipe and nozzle. Simultaneously, a motor is activated, causing a rotating shaft to rotate. This shaft rotates a rectangular plate, which in turn rotates the hooks, thereby rotating the poultry for easy spraying.

The utility model relates to food processing technical field discloses a kind of all-around cleaning equipment of chicken claw containing rotary shower head, including cleaning bucket, the side of cleaning bucket is connected with drain pipe, the one end of drain pipe is connected with water-blocking cover, the lower surface of cleaning bucket is fixedly connected with water tank, the side of water tank is connected with inlet pipe, the one end of inlet pipe is connected with blocking cover, the other side of water tank is connected with conveying pipe, the one end of conveying pipe is connected with water pump, the output of water pump is connected with folding pipe.The utility model is gently stirred chicken claw in filter frame under the support of skeleton by the rotating silica gel stirring frame, and the chicken claw in flowing is washed by multi-angle spraying with the synchronous rotation of spray pipe and shower nozzle, and the filter structure of filter frame and filter plate is convenient for all-around cleaning and maintains water flow cleanliness;And filter plate drives chicken claw to rise to the top of cleaning bucket, and it is convenient for discharge.

This invention discloses an automatic poultry carcass segmentation machine and a method for separating M-bone or small breast carcass halves, relating to the technical field of poultry processing equipment. The automatic segmentation machine includes a transfer track, an M-bone cutting unit, and a small breast carcass halves cutting unit. The M-bone cutting unit is located downstream of the transfer track and includes a cutting track, a first conveyor chain, and an M-bone cutter. The M-bone cutter has a cutting working position and a clearance working position. When it is necessary to cut and separate the M-bone from the carcass to be segmented, the M-bone cutter is in the cutting working position; when it is not necessary to cut and separate the M-bone from the carcass to be segmented, the M-bone cutter is in the clearance working position. The small breast carcass halves cutting unit and the M-bone cutting unit selectively receive the carcass to be segmented, and include a discharge guide rod, a small breast carcass slide rail, a second conveyor chain, and a small breast carcass halves cutting unit. This invention can flexibly adapt to two processing needs, has a high degree of automation and production efficiency, and is suitable for large-scale continuous production.

This utility model relates to the field of duck feet production technology, specifically a duck feet soaking device for making pickled duck feet. It includes a soaking tank, a storage tank, a turntable, a sealed base, and a discharge pipe. A frame is installed at the bottom of the soaking tank. The storage tank is located directly above the soaking tank. A storage cavity is formed in the upper inner part of the storage tank, filled with several fillers. A circular groove is formed in the lower inner part of the storage tank, and a circular discharge hole communicating with the circular groove is provided at the bottom of the storage cavity. The turntable is rotatably installed in the circular groove and has multiple material holes. A discharge bend is provided at the bottom of the storage cavity. A servo motor is installed on the storage tank, and a rotating shaft is connected to the output shaft of the servo motor, which is connected to the turntable. The discharge pipe is located at the bottom of the storage tank. The sealed base is located at the bottom of the soaking tank. This technical solution fills the gaps inside the soaking tank by simultaneously adding duck feet and fillers, reducing the use of marinade and avoiding waste.

This utility model provides a poultry cleaning device, including a cleaning tank, a cleaning platform, spreading guide slides, and a rinsing mechanism. The cleaning platform is built into the cleaning tank, and hooks for moving poultry meat are spaced apart on the upper part of the cleaning platform. A drive component is provided on the cleaning platform to move the hooks. Spreading guide slides are symmetrically installed at corresponding positions on the upper part of the cleaning platform to abut against both sides of the inner wall of the poultry meat. The device allows personnel to fix the front end of the poultry meat onto the hooks, and then spread the two sides of the eviscerated poultry meat apart, abutting it against the inner wall of the poultry meat via guide slides. A chain pulls the poultry meat forward on the cleaning platform, causing it to pass through the rinsing component and the brushing component in sequence. The rinsing component rinses the poultry meat through rinsing nozzles, while the brushing component uses a lifting cylinder to control the brush rods to abut against the inner wall of the poultry meat. A rotating motor drives the brush rods to rotate to brush the poultry meat, working in conjunction with the rinsing component on one side to rinse, thereby thoroughly cleaning the dirt inside the poultry meat.

This utility model relates to the field of marinating and processing of braised meat, specifically an automatic spraying marinating device for color protection in braised meat products. It includes a meat spraying table, rotating nozzles, a marinating liquid tank, and an adjustable rotating mechanism. The adjustable rotating mechanism is driven by a main servo motor to rotate a rotating disk. Combined with a ball screw in a rectangular adjusting box and a servo motor controlling the radial movement of a U-shaped moving plate, this mechanism drives a connecting block, connecting rod, and nozzle base to adjust the spray radius of the rotating nozzles. Precise adjustment is achieved through scale lines, ensuring full coverage spraying of braised meat with varying areas. This device has a compact structure, high spraying efficiency, effectively improves the penetration of color-protecting agents, and reduces oxidative discoloration.

To automate removal of flesh adhered to a portion to be processed of a poultry carcass.SOLUTION: A scraper device according to at least one embodiment of the present disclosure includes a pair of scrapers arranged so as to face each other in an orthogonal direction of a conveyance direction of a poultry carcass held in a holding tool, the scrapers being for removing flesh adhered to a portion to be processed of the poultry carcass by sandwiching the portion to be processed. The scraper device according to at least one embodiment of the present disclosure includes a support part for supporting the pair of scrapers so as to allow displacement of the pair of scrapers in the orthogonal direction, according to a shape of the portion to be processed of the poultry carcass that moves in the conveyance direction.SELECTED DRAWING: Figure 1

This utility model relates to a chicken claw cutting mechanism, including a working surface. Two triangular dividing blocks are protruding from the upper surface of the working surface to separate the middle, inner, and outer toes of a chicken claw. Cutting blades are positioned on the working surface corresponding to the nail positions of the middle, inner, and outer toes. A connecting rod is fixedly connected to the cutting blade. The middle part of the connecting rod is rotatably mounted on the working surface, and the end of the connecting rod is driven by a cam mechanism mounted on the working surface. A torsion spring is provided on the rotating shaft connecting the connecting rod and the working surface, causing the connecting rod to press against the cam of the cam mechanism. This chicken claw cutting mechanism can simultaneously cut off the nails of the middle, inner, and outer toes of a chicken claw in one operation, improving cutting efficiency and saving time in processing chicken claws.

This invention discloses a positioning and loading mold for poultry meat cutting and processing. The positioning and loading mold includes a trimming frame, a frame-mounted drive installed beside the trimming frame, a loading and positioning mold positioned between the trimming frames, a waste material conveyor installed at the end of the trimming frame, a trimming device installed in the center of the trimming frame, a lower guide drawer fixed between the trimming frames, and an even number of inner guide plates installed on the surface of the lower guide drawer. In this invention, the mold device uses a chain with a support frame to fix the plates; when changing the type of product, a downward-pressing rotating rod drives a U-shaped connected limiting ball joint to press down, causing the limiting ball joint to disengage from the limiting rod while swinging within the swing rod groove and disengaging from the pressure on the connecting swing rod. The connecting swing rod then drives the double-sided platform to tilt upwards with the assistance of a spring seat. Finally, after adjustment by a conversion sleeve, the double-sided platform rotates in a ring to switch to the placement surface of the target type, thereby achieving rapid switching and balancing efficiency improvement and flexible production capabilities.

The utility model relates to food processing equipment technical field, concretely relates to a kind of duck goods neck cutting machine safety device;Including machine table, button box, placing seat, adjusting assembly and protection component, protection component includes guide rail strip, linear slide, shroud, connecting frame, first air cylinder, guide seat, top plate, compacting component and cutting component, duck neck is placed in the arc groove of placing seat and makes duck neck right side end portion cooperate with adjusting assembly, control compacting component compact duck neck, further control first air cylinder action, shroud can be pushed to right side movement, to be able to carry out processing isolation, finally control cutting component action can realize cutting, after cutting duck neck falls in the receiving box on machine table, the structure of the first air cylinder, guide rail strip, linear slide and shroud can be protected in safety when processing, improve safety when processing, to further be able to solve the problem that existing equipment is when carrying out duck neck cutting tool is completely exposed, and the security is poor.

The application provides a method and system for improving the precision of livestock and poultry meat cutting by profile dynamic springback compensation, and relates to the field of meat pretreatment cutting technology. The method comprises the following steps: obtaining profile shape parameters and physical property information of the meat to be shaped, inputting a pre-shaping parameter prediction model to obtain pre-shaping motion parameters, and performing a pre-shaping operation to obtain initially shaped meat; based on the physical property information, the pre-shaping motion parameters and the time for the initially shaped meat to be transported to the position of a secondary shaping operation, a springback compensation model is used to determine secondary shaping motion parameters, and a secondary shaping operation is performed to obtain shaped meat; and the weight error, profile deviation or shape pass rate of the shaped meat after cutting is used to continuously update the model for subsequent iterative shaping until the data after cutting meets the preset precision requirement. The application introduces transmission time for dynamic springback compensation, and combines the data after meat cutting to iteratively optimize the model, thereby reducing the influence of meat springback on shaping precision.

A new centralized wax pool, including pool body and its lower side of the outrigger, the pool body inside is equipped with the heating system that can be used for solid wax melting work, the pool body is equipped with the wax pushing system that can spread the solid wax, avoid the solid wax concentration, the long circle hole is horizontally set up on the upper part of both sides of the pool body, the wax pushing system includes the long circle plate that is set in the long circle hole, and the outer circle and the inner hole wall of the long circle hole leave the gap, the outer side of the long circle plate is fixed with the pool body through the connecting piece, and the reserved gap is the guide slide, the wax pushing system also includes the power device, and the wax pushing device that can move along the guide slide through the power device cooperation with the guide slide, the pushing plate of the wax pushing device is set as can spread the solid wax transported to the pool body in the moving process, and the wax pushing device does not affect the solid wax transportation to the pool body in the operation process, significantly improves the melting wax efficiency of the pool body.

This clamper for bone-in thigh meat comprises: a lower presser (21) having a lower clamping piece (29) in which an ankle of poultry thigh meat in a lying posture is disposed; and an upper presser having an upper clamping piece (43) that moves vertically with respect to the lower clamping piece (29) and approaches and separates from the lower clamping piece (29). The ankle of the poultry thigh meat in the lying posture is clamped by the lower clamping piece (29) and the upper clamping piece (43).

This invention relates to an automated poultry skin and meat separation device and method, belonging to the technical field of poultry skin and meat separation equipment. It includes a frame and a horizontally arranged conveying unit. A separation unit is located on one side of the conveying unit. The conveying unit includes a drive source and a transmission mechanism driven by it. Several clamping components are spaced apart on the transmission mechanism. Each clamping component includes a receiving plate and a vertically elastically arranged clamping plate above it. A lifting member is located on one side of the transmission mechanism. When the clamping plate passes the lifting member, it is lifted and elastically abuts against the receiving plate after detachment. The separation unit includes a drive mechanism and a reciprocating connecting seat driven by it. The connecting seat has a separation claw with a hook at its end bent for inserting into the carcass to be separated. The separation claw is parallel to or coincides with the vertical plane of the connecting seat's movement trajectory. A first receiving device is located below the hook corresponding to the separation unit. A material ejector is located at the end of the separation unit. This equipment reduces labor input and production operating costs, meeting the needs of mass poultry slaughtering and processing.

The utility model discloses a conveying and trimming table for poultry slaughtering and processing, relates to poultry processing equipment technical field, including horizontal trimming table, is provided with widening conveyor belt and longitudinal separation component on it, divides the conveyor belt into one untrimmed product transmission channel and N trimmed product transmission channel, both sides collect the table integrated waste collection mechanism, water deflector component and workstation operating platform component, and the waste collection mechanism realizes the efficient collection and isolation of waste through the slanted chute, movable collection box and magnetic type open and close cover, and the water deflector component utilizes the diversion inclined plate and waste liquid collection box to complete the systematic treatment of liquid waste. Through the dynamic partition transmission, integrated treatment of waste and liquid and multi-station flexible adaptation, the scheme solves the problems of low efficiency of artificial transmission, site pollution and insufficient order adaptability in the prior art, and is suitable for efficient, hygienic production requirements in poultry slaughtering and processing.

The present application relates to the technical field of chicken claw processing, and particularly relates to an intelligent conveying device for bone-removed chicken claw processing, which comprises a conveying frame, a conveying plate arranged on one side of the conveying frame, water filtering holes being arranged through the surface of the conveying plate, a first motor fixedly arranged on one side of the conveying frame, a cam arranged on the output end of the first motor, a first air cylinder arranged on the top of the conveying frame, a telescopic rod slidingly connected to the output end of the first air cylinder, and a second air cylinder arranged on one side of the conveying frame. During the rotation of the processing barrel, the knocking part periodically knocks the compression part, and mechanical energy is converted into pneumatic energy. When the compression part is pressed to a critical point, the high-pressure gas in the compression cavity breaks through the blockage of the blocking ball instantaneously, and is sprayed out at high speed through the air outlet hole. The speed of the instantaneously released airflow is extremely high, and strong aeration is generated in the water tank at the bottom of the processing barrel.

The application discloses a longitudinal-bending coupling adaptive livestock and poultry meat ultrasonic cutting system and method based on acoustic black hole effect, and belongs to the technical field of food processing machinery equipment. The ultrasonic cutter head of the cutting unit has an energy focusing transition section; a cooling flow channel is arranged in the ultrasonic cutter head; a tissue recognition module is used for determining the type of livestock and poultry meat tissue to be cut; a piezoelectric sensor is used for detecting the electrical impedance signal of the piezoelectric transducer in real time; an adaptive control module is internally provided with an impedance reference parameter library, the parameter library stores target impedance values corresponding to different livestock and poultry meat tissue types; the adaptive control module receives the tissue type information; according to the tissue type information, the corresponding target impedance value is called from the impedance reference parameter library; the working frequency of the ultrasonic wave generator is dynamically adjusted; the application can adaptively adjust the output according to the change of the tissue type in livestock and poultry meat cutting, and can effectively control the thermal damage while improving the cutting efficiency.

The present application belongs to the technical field of chicken claw processing equipment, and particularly relates to a cutting device and a chicken claw nail cutting machine. The cutting device comprises a mold and a cutter assembly. The mold is installed on an installation plane and is used for placing chicken claws. At least one outlet is arranged on the outside of the mold and is used for extending a chicken claw nail. The cutter assembly is arranged in a spaced manner with the mold and corresponds to the outlet. The cutter assembly comprises a rotating piece, a cutter and a poking piece. The cutter is installed on the rotating piece. The axis of the rotating piece is arranged in a perpendicular manner with the installation plane. The rotating piece can rotate around its own axis to drive the cutter and the poking piece to rotate. The poking piece contacts the chicken claw nail before the cutter to push the extended part of the chicken claw nail to swing downward, so that the chicken claw nail is exposed to the outlet. The cutter is used for cutting the chicken claw nail. The present application ensures that the cutter can cut the nail cleanly and accurately, and avoids the problems of cutting out of position or mistakenly hurting the chicken claw toe meat due to poor posture of the nail.

The utility model discloses a big bone separation turnover device for poultry claw, including first bone spade and second bone spade who sets up oppositely, first bone spade be connected with the spade bone drive of driving its along the length direction of fixed big bone removes and the bone drive of driving its along the radial movement of fixed big bone, second bone spade be connected with the bone drive of driving its relative first bone spade removes, second bone spade can move and insert the back of big bone that first bone spade turns up, still include the first fixed part of the first fixed part of the big bone phalanx end of poultry claw big bone that can move and press from fixed or away and the second fixed part of the second fixed part of the fragile bone end of poultry claw big bone that can move and fix. The utility model imitates the clean separation of bone and meat without damaging the bone and cutting off the meat by manual bone removal without cutting instrument.

This conveyance device is provided with: a belt conveyor (7) on which poultry thigh meat (M) is disposed lying flat and which conveys the poultry thigh meat (M); a chain conveyor (8) which is disposed parallel to the belt conveyor (7) and which is driven in synchronization with the belt conveyor (7); and clampers (9) which are provided to the chain conveyor (8) and which hold the ankles (A) of the poultry thigh meat (M).

The present application relates to poultry meat processing technical field, and disclose a kind of small poultry meat block processing device for food processing, including support frame, conveying belt, cutting end shell, hydraulic rod, the lower portion of the hydraulic rod is equipped with cutting mechanism for cutting into block;The lower portion of the cutting mechanism is positioned on both sides with positioning mechanism for positioning poultry meat;The positioning mechanism is directly above with flushing end shell for flushing residue;The cutting mechanism includes push disc, the lower portion of the push disc is fixedly connected with axial end shell, the inside of the axial end shell is rotatably connected with circulating groove shaft, the outside of the circulating groove shaft is provided with four chute contact rods, the present application, automatically complete cutting direction ninety degrees accurate conversion in the process of hydraulic rod rising, ensure that cutting size is uniform, in addition, the whole cutting process is sequentially completed in the same station, without material transfer, reduce intermediate link, significantly improve processing efficiency and automation degree.

The utility model discloses a kind of chicken claw deboning auxiliary devices, including shell, washing mechanism is arranged on the shell, the washing mechanism includes water pipe, water pump, bellows, connecting pipe and spray head, flow control mechanism is arranged between the connecting pipe and bellows, the flow control mechanism includes control cover, rotating sleeve, inner sleeve, screw rod, transmission sleeve, one-way piece, push ring and positioning mechanism, control cover is installed at the bottom end of connecting pipe, rotating sleeve is rotatably connected control cover and bellows, inner sleeve slides in control cover, this design not only solves the problem of inconvenient cleaning of traditional equipment, but also improves cleaning efficiency and cleaning quality, effectively removes effusion and bacteria at chicken claw joint, adopts the precise cooperation of control cover and rotating sleeve, through the thread transmission of screw rod and transmission sleeve, combined with the linkage design of inner sleeve and one-way piece, the accurate control of cleaning liquid flow is realized.

The utility model provides a kind of chicken fast cleaning device, it solves the problem of existing cleaning device impurity not thoroughly removed, cleaning effect is general and low cleaning efficiency. Including support frame and the cleaning tank group being set on support frame;The cleaning tank group includes the inclined downward setting screen washing tank and the horizontal setting agitating tank, the discharge port of screen washing tank is connected with the feed inlet of agitating tank;A plurality of mesh screens with different mesh counts are sequentially provided on the cleaning tank group, a plurality of vibration mechanisms are sequentially provided on the cleaning tank group, the output end of each vibration mechanism is connected with the mesh screen at the corresponding position;A weight sensor is provided at the connection between the vibration mechanism and the mesh screen, and the vibration mechanism and the weight sensor are both electrically connected with a control mechanism;A rotating mechanism is provided on the mesh screen in the agitating tank, and the control mechanism is electrically connected with the rotating mechanism. The utility model is widely applied in chicken processing equipment technical field.

The utility model discloses automatic online wing cutting machine of duck slaughter, including mounting bracket and hanging type conveying line, the inside of mounting bracket is connected with the conveying roller through the roller frame rotation, and the conveying roller outside is sleeved with the conveying belt, and the conveying belt two two symmetry distribution has two groups, the conveying belt one end is the horn shape structure. Advantageous effect: the utility model has adopted the conveying belt and mounting bracket, the inside of mounting bracket is installed two two symmetry distribution's conveying belt, and the conveying belt one end is horn -shaped, and duck carcass is hung on the hanging type conveying line, and duck wing is opened naturally through gravity, and along with transportation enters between the conveying belt arranged in upper and lower, and is gradually pressed tightly by the conveying belt, then, and the electric cylinder elongation promotes the cutting knife and moves up, can cut off duck wing, and the wing is cut, and the work continuity is high, and after duck wing is cut, the conveying belt rotates continuously under the drive of the motor, and duck wing is conveyed out of the conveying belt, and automatic separation and collection are completed, and the work efficiency is high, and convenient and simple to use.

A poultry thigh meat processing system comprises: a belt conveyor (7) on which poultry thigh meat (M) is disposed in a prone position; a chain conveyor (8) provided parallel to the belt conveyor (7) and driven in synchronization with the belt conveyor (7); clampers (9) provided to the chain conveyor (8); charging units (3) each provided on the upstream side of each conveyor (7, 8); and a scoring device provided in the middle of each conveyor (7, 8). The clampers (9) and the charging unit (3) are each provided with an opening mechanism (18) for opening an upper press, and the scoring device is provided with a closing press device that elastically presses the upper press in the closing direction.

This utility model relates to a chicken and duck slaughtering and cutting device, belonging to the field of chicken and duck cutting technology. It includes a workbench with an inverted L-shaped fixing frame fixedly installed on its upper surface. A cutting frame is mounted on the fixing frame via a lifting control mechanism. An extruder is fixedly connected to the fixing frame above the cutting frame. A sliding groove is formed on the upper surface of the workbench, and a fixing frame corresponding to the cutting frame is slidably fitted into the inner wall of the groove. The fixing frame is connected to a movement control mechanism. A discharge trough penetrating the workbench is formed at one end of the sliding groove. This utility model utilizes a fixed-specification cutting frame to cut chickens and ducks into uniform pieces of meat, achieving high efficiency and practicality.

The present application relates to a kind of broiler carcass high-efficient water-saving cleaning machine, belong to poultry slaughtering and processing equipment technical field.Chain conveyor is installed in the top of rack, the partition plate is installed in the rack, and the annular channel is formed by separating the inside of rack, broiler carcass support device is hoisted on chain conveyor, and pre-washing area, high-pressure cleaning area, airflow wiping area are sequentially arranged along the direction of chain conveyor conveying;Sewage tank and circulating water tank are both installed in the bottom of rack, pre-washing area bottom is provided with sewage receiving tank, sewage receiving tank is communicated with sewage tank, and sewage tank is connected with sewage treatment equipment;High-pressure cleaning area and airflow wiping area bottom are provided with water receiving tank, water receiving tank is communicated with circulating water tank, and circulating water tank is connected with filter device;Airflow wiping effectively reduces the amount of microorganism breeding on carcass surface, and it is favorable to prolong product shelf life;By setting wastewater collection and circulation system, the water after cleaning is recycled for pre-washing area after multi-stage filtration, realizes the recycling of water, and effectively saves water resources.

The present invention provides a meat transfer device that can accurately transfer irregularly shaped and flexible workpieces, such as poultry leg meat, without requiring them to be gripped. [Solution] The transfer device 60 comprises a suction unit, an adsorption nozzle 11 that uses the suction force of the suction unit to adsorb meat, a moving unit 13 that moves the adsorption nozzle 11 and changes the posture of the poultry leg meat M, and a release unit that releases the adsorption of the poultry leg meat M by the adsorption nozzle 11 after the adsorption nozzle 11 has been moved.

This utility model relates to the field of food production and relates to a chicken preservation device. The device includes a cooling box, a perforated frame, a lifting assembly, and a circulating spray assembly. The cooling box stores cold water, with a cold water inlet pipe on the upper right side and a drain pipe on the lower right side. A filter screen is installed inside the cooling box. The perforated frame is installed at the lower end of the lifting assembly and can be raised and lowered within the cooling box. The circulating spray assembly includes a circulating pipe, a water pump, a spray frame, and spray heads. The spray frame is installed on the top of the perforated frame, and the spray heads are installed at the lower end of the spray frame. The bottom of the circulating pipe is connected to the lower left side of the cooling box and is located below the filter screen. The upper end of the circulating pipe is connected to the spray heads. The water pump is mounted on the circulating pipe, significantly improving cooling efficiency and impurity removal.

The present invention provides a bone-in leg meat processing device that can absorb individual differences in bone-in leg meat, such as poultry leg meat, and can hold the bone-in leg meat even when subjected to stress during processing. [Solution] The poultry leg meat processing system comprises a belt conveyor 7 on which poultry leg meat M is placed in a lying position, a chain conveyor 8 provided parallel to the belt conveyor 7 and driven in sync with the belt conveyor 7, a clamper 9 provided on the chain conveyor 8, an input section 3 provided on the upstream side of each conveyor 7, 8, and a creasing device provided in the middle of each conveyor 7, 8. The clamper 9 and the input section 3 are equipped with an opening mechanism 18 that opens the upper clamp, and the creasing device is equipped with a closing clamping device that elastically presses the upper clamp in the closing direction.