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CN-122008402-A - Prestressed track slab die device

CN122008402ACN 122008402 ACN122008402 ACN 122008402ACN-122008402-A

Abstract

The application provides a prestress track plate die device, and relates to the technical field of track plate production. The tensioning assembly comprises a fixed rod, a tensioning rod and a tensioning unit, wherein the top of the fixed rod is provided with a die cavity, the die cavity is provided with a tensioning hole and a fixing hole relatively, one end of the fixed rod penetrates through the fixing hole to be detachably connected with the tendon, the other end of the fixed rod is provided with a fixing protrusion, the fixing protrusion is abutted with an orifice of the fixing hole, the tensioning rod penetrates through the tensioning hole to be detachably connected with the tendon, the tensioning unit comprises a sliding rail, a movable frame, a clamping piece and a driving cylinder, the sliding rail is arranged along the length direction of the tensioning hole, the movable frame is arranged on the sliding rail, the clamping piece is arranged on the movable frame and is detachably connected with one end of the tensioning rod, which is far away from the die cavity, of the driving cylinder can drive the movable frame to be close to the fixing protrusion along the sliding rail, or far away from the fixing protrusion and stretch the tendon between the tensioning rod and the fixing rod. The application can realize the efficient tensioning and releasing of the steel tendons.

Inventors

  • ZHANG JUN
  • YE JUAN
  • SHEN JIE
  • SUN LIANG

Assignees

  • 江苏丰和隧道设备有限公司

Dates

Publication Date
20260512
Application Date
20260319

Claims (10)

  1. 1. The prestress track plate die device is characterized by comprising a forming die (1) and a tensioning assembly (2), wherein a die cavity suitable for accommodating a tendon is formed at the top of the forming die (1), and a tensioning hole and a fixing hole which are communicated with the outside are formed in the side wall of the die cavity relatively; The tensioning assembly (2) comprises a fixing rod (21), a tensioning rod (22) and a tensioning unit (23), one end of the fixing rod (21) penetrates through the fixing hole to extend into the die cavity and is detachably connected with the steel bar bundle, a fixing protrusion (211) is formed at the other end of the fixing rod (21), the fixing protrusion (211) is far away from one side hole opening of the die cavity and is abutted with the fixing hole, one end of the tensioning rod (22) penetrates through the tensioning hole to extend into the die cavity and is detachably connected with the steel bar bundle, the tensioning unit (23) comprises a sliding rail (231), a moving frame (232), a clamping piece (233) and a driving cylinder (234), the sliding rail (231) is arranged along the length direction of the tensioning hole, the moving frame (232) is arranged on the sliding rail (231), the clamping piece (233) is arranged on the moving frame (232) and is detachably connected with one end, far away from the die cavity, of the tensioning rod (22) penetrates through the tensioning hole to extend into the die cavity and is detachably connected with the steel bar bundle (23), and the sliding rail (232) can be close to the fixing protrusion (211) or the tensioning rod (232) to the fixing protrusion (211).
  2. 2. The pre-stress track slab die device as set forth in claim 1, wherein the tensioning assembly (2) further comprises an unlocking unit (24), the unlocking unit (24) comprises a fixing sleeve (241), a tensioning sleeve (242) and a rotating member (243), a plurality of screw rods are arranged on the tendon, screw holes matched with the screw rods are formed on one end of the tensioning rod (22) and one end of the fixing rod (21) far away from the fixing protrusion (211), a clamping block (221) and a clamping groove (222) are formed on the other end of the tensioning rod (22), one end of the fixing rod (21) close to the fixing protrusion (211) can be inserted into the fixing sleeve (241), the inner wall of the fixing sleeve (241) can be abutted with the fixing rod (21) and limit the fixing rod (21) to rotate in the fixing sleeve (241), the tensioning sleeve (242) is arranged on the moving frame (232), the clamping member (233) is arranged on the inner wall of the tensioning sleeve (242) and the fixing sleeve (242) can be connected with the rotating sleeve (243); When the movable frame (232) is close to the die cavity, the tensioning clamping block (221) can be inserted into the tensioning sleeve (242), after the tensioning sleeve (242) rotates along the screwing direction of the screw hole of the tensioning rod (22), the tensioning clamping block (242) is sleeved on the clamping piece (233) through the clamping groove (222) and follows the tensioning sleeve (242) to rotate, then when the movable frame (232) is far away from the die cavity, one side, facing away from a cylinder opening of the tensioning sleeve (242), of the clamping piece (233) is abutted with the groove wall of the clamping groove (222) and limits the tensioning sleeve (242) to leave the tensioning rod (22), or after the tensioning sleeve (242) rotates along the unscrewing direction of the screw hole of the tensioning rod (22), the tensioning clamping block (221) is abutted with the clamping piece (233) and follows the tensioning sleeve (242), and then when the movable frame (232) is far away from the die cavity, the tensioning sleeve (242) can leave the tensioning rod (22).
  3. 3. The device of claim 1, wherein the forming die (1) comprises a bottom die (11) and forming baffles (12), the bottom die (11) is arranged in the forming baffles (12) in an abutting manner, the die cavity is formed between the top of the bottom die (11) and the inner wall of the forming baffles (12), the forming baffles (12) comprise two end dies (121) and two side dies (122), the two end dies (121) and the two side dies (122) are oppositely arranged with the bottom die (11) as a center, a fixing hole (1211) is formed at two ends of each end die (121), a connecting hole is formed at two ends of each side die (122), and the two end dies (121) can sequentially penetrate through the fixing hole (1211) and the adjacent connecting hole, are connected with the adjacent side dies (122) through nuts in a screwed manner, and are spliced with the two side dies (122) in a screwed manner, and the two side dies (122) are combined to form the forming baffles (12).
  4. 4. The device for the prestressed track slab die set as claimed in claim 3, wherein a limiting block (111) is arranged at the bottom of the bottom die (11), a limiting hole is formed in the forming enclosure (12) along the length direction of the stretching rod (22), the stretching hole and the limiting hole are arranged vertically opposite to each other with the bottom die (11) as a center, the limiting block (111) is inserted into the limiting hole, and when the moving frame (232) is far away from the die cavity and stretches the steel bar bundles, the limiting block (111) can be abutted with the bottom wall of the limiting hole and limit the part, higher than the bottom die (11), of the forming enclosure (12) to turn around the abutting part of the forming enclosure (12) and the bottom die (11) into the die cavity.
  5. 5. The pre-stress track slab die device as set forth in claim 3, wherein a sealing groove is formed in the inner wall of the forming enclosure (12) along the circumferential direction, a sealing strip (123) is arranged in the sealing groove, and when the forming enclosure (12) is combined with the bottom die (11), the sealing strip (123) is abutted against the side wall of the bottom die (11).
  6. 6. A prestressed track slab die assembly as claimed in claim 3, further comprising an arching assembly (3), said arching assembly (3) being drivingly connected to said end dies (121) and being capable of driving said end dies (121) toward each other to arch the middle portion of said bottom die (11) upwardly and form an arcuate surface at the top of said bottom die (11).
  7. 7. The device of claim 6, wherein the arching assembly (3) comprises an arching screw (31), an abutting nut (32) and a driving piece (33), each end die (121) is provided with an arching hole, one end of the arching screw (31) passes through one of the two arching holes to be in threaded connection with the abutting nut (32), the other end of the arching screw (31) passes through the other one of the two arching holes to be in transmission connection with the driving piece (33), and the driving piece (33) can drive the arching screw (31) to drive the abutting nut (32) to be close to one of the two end dies (121) far away from the abutting nut (32).
  8. 8. The device of claim 7, wherein the arching component (3) further comprises a liquid containing bag (34), a limit box (35), a fixing plate (36) and a clamping plate (37), a box opening of the limit box (35) is connected with the bottom of the bottom die (11) and forms an expansion cavity between the two, a clamping hole leading to the outside is formed in the inner bottom wall of the expansion cavity, the top end of the fixing plate (36) is connected with one side orifice of the clamping hole, a yielding hole is formed in the plate surface of the fixing plate (36), a connecting screw hole is formed in the clamping plate (37), the arching screw (31) passes through the yielding hole and is in threaded connection with the connecting screw hole, the Cheng Yenang (34) comprises a clamping part (341) and a lifting part (342), the clamping part (341) extends downwards to the position between the clamping plate (37) and the fixing plate (36), the lifting part (342) is arranged in the expansion cavity and is connected with one side orifice of the clamping hole, the two screw rods (31) can be driven to be close to the clamping screw (32) when the two screw rods (31) are in threaded connection with the connecting screw hole (37), and then the jacking part (342) pushes the middle part of the bottom die (11) to arch upwards and form an arc surface at the top of the bottom die (11).
  9. 9. The pre-stressed track plate die device as recited in claim 8, wherein the clamping part (341) is provided with a liquid injection port leading to the interior of the Cheng Yenang (34), and the liquid injection port is detachably connected with a plugging cap (3411).
  10. 10. The pre-stress track plate die device according to claim 1, further comprising an ejection assembly (4), wherein the ejection assembly (4) comprises an ejector rod (41) and an ejector cylinder (42), an ejector hole which is communicated with the outside is formed in the inner bottom wall of the die cavity along the vertical direction, the ejector rod (41) is inserted into the ejector hole, and the ejector cylinder (42) is in transmission connection with the ejector rod (41) and can drive the ejector rod (41) to be far away from or extend into the die cavity along the ejector hole.

Description

Prestressed track slab die device Technical Field The application relates to the technical field of track plate production, in particular to a prestress track plate die device. Background The prior track slab is mainly characterized in that a fixing pedestal is mainly used for applying prestress to the tendons in the track slab during production, the device drives a plurality of steel bars to be stretched integrally through a stretching beam, after the stretching force reaches a set value, the stretching force is locked by using a torque wrench manually, and finally, the unlocking operation is performed manually after concrete is solidified. However, the manual locking and unlocking operations not only increase the operation time and the number of workers, but also are difficult to ensure the consistency of the locking effect of each steel bar due to the difference of manual operation force, and further aggravate the fluctuation of tensioning precision. In addition, the efficiency of the manual locking mode is low, and the gap exists between the manual locking mode and the requirements of the modern assembly line on continuous, rapid and standardized operation, so that the improvement of the overall production efficiency of the track plate is limited. In view of this, it is desirable to provide a pre-stressed track-plate die apparatus. Disclosure of Invention The application provides a prestress track plate die device, which aims to solve the problem that the existing track plate production needs to be manually locked and unlocked during the tensioning of steel bars, and is time-consuming and labor-consuming. The application provides a prestress track plate die device, which adopts the following technical scheme that the prestress track plate die device comprises a forming die and a tensioning assembly, wherein a die cavity suitable for accommodating a tendon is formed at the top of the forming die, and a tensioning hole and a fixing hole which are communicated with the outside are formed on the side wall of the die cavity relatively; The tensioning assembly comprises a fixing rod, a tensioning rod and a tensioning unit, one end of the fixing rod penetrates through the fixing hole to extend into the die cavity and is detachably connected with the steel bar bundle, a fixing protrusion is formed at the other end of the fixing rod and is abutted to one side hole opening of the die cavity far away from the fixing hole, one end of the tensioning rod penetrates through the tensioning hole to extend into the die cavity and is detachably connected with the steel bar bundle, the tensioning unit comprises a sliding rail, a moving frame, a clamping piece and a driving cylinder, the sliding rail is arranged in the length direction of the tensioning hole, the moving frame is arranged on the sliding rail, the clamping piece is arranged on the moving frame and is detachably connected with one end of the tensioning rod far away from the die cavity, and the driving cylinder is in transmission connection with the moving frame and can drive the moving frame to be close to the fixing protrusion along the sliding rail or far away from the fixing protrusion and tensioning the steel bar bundle between the tensioning rod and the fixing rod. Through adopting above-mentioned technical scheme, the die cavity of moulded die can hold the tendon, and dead lever and stretch-draw pole pass fixed orifices and stretch-draw hole respectively and can dismantle with the tendon and be connected, and stretch-draw unit can drive the movable frame and remove along the slide rail, realizes the stretch-draw to the tendon. Compared with the prior art, the device has the advantages that the fixed pedestal is adopted, the tension force is locked and unlocked manually by using the torque wrench, manual operation can be avoided, the operation time and the number of workers are reduced, the problem of inconsistent locking effect caused by the difference of manual operation force is solved, fluctuation of tensioning precision is reduced, tensioning precision is improved, the requirements of a modern assembly line on continuous, rapid and standardized operation are met, and the overall efficiency of track plate production is improved. Specifically, the tensioning assembly further comprises an unlocking unit, the unlocking unit comprises a fixing sleeve, a tensioning sleeve and a rotating piece, a plurality of screw rod ends are arranged on the steel bar bundle, screw holes matched with the screw rod ends are formed in one end of the tensioning rod and one end of the fixing rod, which is far away from the fixing protrusion, a tensioning clamping block and a clamping groove are formed in the other end of the tensioning rod, one end of the fixing rod, which is close to the fixing protrusion, can be inserted into the fixing sleeve, the inner wall of the fixing sleeve can be abutted to the fixing rod and limit the fixing rod to rotate in the fixing sleeve, the t