Flat-die horizontal core-pulling machine

Abstract

The invention discloses a flat die horizontal core-pulling machine which comprises a rack, a core-pulling trolley is arranged at one end of the rack in a sliding mode, a plurality of core pipes are fixedly installed on one side of the core-pulling trolley, a supporting assembly is fixedly installed at the end, away from the core-pulling trolley, of the rack, and a pressing assembly is arranged at the end, close to the supporting assembly, of the rack in a sliding mode. The core tube penetrates through the supporting assembly and the pressing assembly and is located between the supporting assembly and the pressing assembly, a movable plate is arranged on the core pulling trolley, a stop block is arranged on the side wall of the end, close to the pressing assembly, of the rack, and the stop block is matched with the movable plate; the movable plate is in contact with the stop block on the rack, the movable plate is pressed downwards, so that the movable plate drives the pressing assembly to apply pressing force to the end, close to the core pulling trolley, of the core pulling pipe, at the moment, the core pipe is regarded as a warping plate, the supporting assembly is converted into a fulcrum, and the pressing force of the pressing assembly enables the far end of the core pipe to receive supporting force to resist the self weight and guarantee that the core pipe is horizontal.

Description

Technical Field

[0001] This invention relates to the field of horizontal core-pulling machine technology, and more particularly to a flat mold horizontal core-pulling machine. Background Technology

[0002] The production of precast components has evolved from entirely manual production of single flat molds to semi-automatic production of single-unit group vertical molds (automatic opening and closing of side molds, automatic opening and closing of end molds, mechanical hoisting of slabs, manual core insertion, manual core removal, etc.). Later, to solve the problems of manual core insertion and removal, a horizontal core-pulling machine was invented: a horizontal core-pulling trolley that can move back and forth relative to the core-pulling machine frame is installed inside the core-pulling machine frame. A horizontal core tube is connected to the front end of the horizontal core-pulling trolley through a locking mechanism. When the group vertical mold without slurry is moved to the front end of the core-pulling machine, the horizontal core-pulling trolley moves the horizontal core tube forward and inserts it into the blocking plate holes of the front and rear end molds of the group vertical mold, completing the mechanized core insertion. When the group vertical mold that has been poured and pre-cured to the core-pulling strength returns to the front end of the core-pulling machine, the horizontal core-pulling trolley moves the horizontal core tube backward and smoothly pulls the horizontal core tube out of the precast component in the mold cavity of the group vertical mold, completing the mechanized core removal.

[0003] In existing flat mold horizontal core pulling machines, the distal end of the core tube inevitably sags due to gravity during core insertion and core pulling. This means that the horizontal core tube is difficult to keep horizontal before it enters the forming cavity of the assembled vertical mold. This results in defects such as unsmooth core insertion and low horizontal straightness of the holes in the formed precast components. Summary of the Invention

[0004] The purpose of this invention is to provide a flat mold horizontal core-pulling machine to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a flat mold horizontal core-pulling machine, comprising a frame, a core-pulling trolley slidably disposed at one end of the frame, a plurality of core tubes fixedly installed on one side of the core-pulling trolley, a support assembly fixedly installed at the end of the frame away from the core-pulling trolley, a pressing assembly slidably disposed at the end of the frame near the support assembly, the core tubes passing through the support assembly and the pressing assembly and situated between the two, a movable plate disposed on the core-pulling trolley, and a blocking block disposed on the side wall of the frame near the pressing assembly, the blocking block being adapted to the movable plate.

[0006] As a further description of the above technical solution: the support assembly includes a support frame, on which multiple support plates are fixedly installed, and the multiple support plates are in contact with the bottom of the core tube.

[0007] As a further description of the above technical solution: the pressing assembly includes multiple pressing plates, each of which has a connecting rod at both ends. Two connecting rods fix the multiple pressing plates together as a whole at both ends. A pressing strip is fixedly connected to the bottom end of the two connecting rods. The pressing strip slides with the frame. Multiple first springs are fixedly installed at the bottom of the pressing strip. The top end of the pressing strip extends through the side wall of the frame.

[0008] As a further description of the above technical solution: the two movable plates are movably installed on the side walls of the core-pulling trolley, a second spring is connected between the movable plates and the core-pulling trolley, and the blocking block is set in a ramp shape at the end near the movable plate.

[0009] As a further description of the above technical solution: rollers are rotatably installed at the positions where the support plate and the lower pressure plate contact the core tube.

[0010] As a further description of the above technical solution: a slide groove is fixedly installed at the bottom of the frame, a ball screw is rotatably installed inside the slide groove, a motor is fixedly installed at one end of the slide groove, the output end of the motor is connected to the ball screw, a slider is threaded onto the ball screw, the slider is slidably installed inside the slide groove, a tension sensor is fixedly installed at the bottom of the core-pulling trolley, the tension end of the tension sensor is fixedly connected to the side wall of the slider, a support block is fixedly installed at the bottom of the tension sensor, and the support block is slidably adapted to the ball screw.

[0011] As a further description of the above technical solution: a temperature sensor is provided on the core tube, a controller is fixedly installed at one end of the frame, a time sensor is provided on one side of the controller, and the controller is electrically connected to the motor.

[0012] This invention provides a flat mold horizontal core-pulling machine. It has the following beneficial effects: During the use of this device, in order to ensure that the core tube remains horizontal after being extended, the device uses a support assembly to support the distal end of the core tube. However, as the distal end of the core tube moves further away from the support assembly, the support effect decreases after the midpoint of the core tube passes the support assembly. At this point, the movable plate of the core-pulling trolley contacts the blocking block on the frame, pressing down the movable plate. This causes the movable plate to drive the pressing assembly to apply downward pressure to the end of the core tube closest to the core-pulling trolley. At this time, the core tube is considered as a rocker arm, and the support assembly becomes a fulcrum. The downward pressure of the pressing assembly provides support to the distal end of the core tube to counteract its own weight, ensuring the core tube remains horizontal.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0014] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a flat mold horizontal core-pulling machine proposed in this invention;

[0016] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0017] Figure 3 This is a partially enlarged three-dimensional structural schematic diagram of the present invention;

[0018] Figure 4 This is a three-dimensional exploded view of the core-pulling cart of the present invention;

[0019] Figure 5 This is a three-dimensional structural diagram of the core tube, support plate, and lower pressure plate of the present invention;

[0020] Figure 6 This is a partially enlarged structural schematic diagram of the core tube side view of the present invention;

[0021] Figure 7 This is a three-dimensional structural diagram of the pressure plate of the present invention.

[0022] Legend:

[0023] 1. Frame; 2. Core-pulling trolley; 3. Core tube; 4. Movable plate; 5. Blocking block; 6. Support frame; 7. Support plate; 8. Lower pressure plate; 9. Connecting rod; 10. Lower pressure bar; 11. First spring; 12. Roller; 13. Slide groove; 14. Ball screw; 15. Motor; 16. Slider; 17. Tension sensor; 18. Support block; 19. Temperature sensor; 20. Controller; 21. Time sensor. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Reference Figure 1-7A horizontal core-pulling machine for flat molds includes a frame 1. A core-pulling trolley 2 is slidably mounted at one end of the frame 1. Multiple core tubes 3 are fixedly installed on one side of the core-pulling trolley 2. A support assembly is fixedly installed at the end of the frame 1 away from the core-pulling trolley 2. A pressing assembly is slidably mounted at the end of the frame 1 near the support assembly. The core tubes 3 pass through the support assembly and the pressing assembly and are located between them. A movable plate 4 is provided on the core-pulling trolley 2. A blocking block 5 is provided on the side wall of the frame 1 near the pressing assembly. The blocking block 5 is adapted to the movable plate 4. During the use of this device, in order to ensure that the core tubes 3 are extended... Afterwards, it can always remain horizontal. This device supports the far end of the core tube 3 by setting a support component. However, as the far end of the core tube 3 moves away from the support component, the support effect of the support component on the far end of the core tube 3 decreases after the midpoint of the core tube 3 passes the support component. At this time, the movable plate 4 of the core-pulling trolley 2 contacts the blocking block 5 on the frame 1 and presses down the movable plate 4. This causes the movable plate 4 to drive the pressing component to apply downward pressure to the end of the core tube 3 near the core-pulling trolley 2. At this time, the core tube 3 is regarded as a rocker, and the support component becomes a fulcrum. The downward pressure of the pressing component makes the far end of the core tube 3 receive a supporting force to counteract its own weight and ensure that the core tube 3 is horizontal.

[0026] As a preferred technical solution in this embodiment, the support assembly includes a support frame 6, on which a plurality of support plates 7 are fixedly installed, and the plurality of support plates 7 are in contact with the bottom of the core tube 3; the support is provided by the multiple layers of support plates 7 and the multiple layers of core tube 3.

[0027] As a preferred technical solution of this embodiment, the pressing assembly includes multiple pressing plates 8, each with a connecting rod 9 at both ends. Two connecting rods 9 fix the multiple pressing plates 8 together as a whole at both ends. A pressing strip 10 is fixedly connected to the bottom end of the two connecting rods 9. The pressing strip 10 slides with the frame 1. Multiple first springs 11 are fixedly installed at the bottom of the pressing strip 10. The top end of the pressing strip 10 extends through the side wall of the frame 1. When the movable plate 4 has not reached the position of the blocking block 5, the movable plate 4 does not contact the pressing strip 10, and the pressing plate 8 does not press down to apply pressure to the core tube 3. When the movable plate moves to the bottom of the blocking block 5, the blocking block 5 limits the movable plate 4, causing the movable plate 4 to descend and press the pressing strip 10 into the frame 1, driving the pressing plate 8 to press down together, applying pressure to the top end of one end of the core tube 3, forcing the distal end of the core tube 3 to be stressed and kept horizontal.

[0028] As a preferred technical solution of this embodiment, the two movable plates 4 are movably installed on the side walls of the core-pulling carriage 2. A second spring (not shown in the figure) is connected between the movable plate 4 and the core-pulling carriage 2. The end of the blocking block 5 near the movable plate 4 is set as a ramp. The ramp set at one end of the blocking block 5 guides the movable plate 4 to press down, which further drives the lower pressure plate 8 to press down. Since the core tube 3 itself has a certain length, the movable plate 4 will continue to move a certain distance after pressing down. Therefore, by setting the blocking block 5 to be shorter than the lower pressure block, the movable plate 4 is located in the middle of the lower pressure bar 10 when it is pressed down, which makes it easier to apply positive downward pressure to the lower pressure bar 10.

[0029] As a preferred technical solution in this embodiment, rollers 12 are rotatably installed at the positions where the support plate 7 and the lower pressure plate 8 contact the core tube 3; the contact between the rollers 12 and the core tube 3 reduces the friction between the core tube 3 and the support plate 7 and the lower pressure plate 8.

[0030] As a preferred embodiment, a slide groove 13 is fixedly installed at the bottom of the frame 1. A ball screw 14 is rotatably installed inside the slide groove 13. A motor 15 is fixedly installed at one end of the slide groove 13, and the output end of the motor 15 is connected to the ball screw 14. A slider 16 is threaded onto the ball screw 14 and is slidably installed inside the slide groove 13. A tension sensor 17 is fixedly installed at the bottom of the core-pulling trolley 2. The tension end of the tension sensor 17 is fixedly connected to the side wall of the slider 16. A support block 18 is fixedly installed at the bottom of the sensor 17, and the support block 18 is slidably adapted to the ball screw 14. After the core tube 3 is inserted into the mold, it is necessary to determine the extraction time of the core tube 3. The pulling force when the core tube 3 is extracted is an important criterion. The core extraction trolley 2 is connected to the slider 16 through the tension sensor 17. When the core tube 3 is extracted, the slider 16 moves, pulling the tension sensor 17. The tension sensor 17 obtains the pulling force data of the core extraction trolley 2, judges it, and determines the core extraction time.

[0031] As a preferred technical solution in this embodiment, a temperature sensor 19 is provided on the core tube 3, a controller 20 is fixedly installed at one end of the frame 1, a time sensor 21 is provided on one side of the controller 20, and the controller 20 is electrically connected to the motor 15; this device further collects the temperature and setting time of the slurry inside the mold through the temperature sensor 19 and the time sensor 21, and determines the optimal core-pulling time by collecting, comparing and analyzing the data to ensure stable product performance after core pulling and improve product quality. The controller 20 controls the motor 15 to ensure stable core pulling time.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A horizontal core-pulling machine for flat molds, comprising a frame (1), characterized in that: A core-pulling trolley (2) is slidably mounted on one end of the frame (1). Multiple core tubes (3) are fixedly installed on one side of the core-pulling trolley (2). A support assembly is fixedly installed on the end of the frame (1) away from the core-pulling trolley (2). A pressing assembly is slidably mounted on the end of the frame (1) near the support assembly. The core tube (3) passes through the support assembly and the pressing assembly and is located between the two. A movable plate (4) is provided on the core-pulling trolley (2). A blocking block (5) is provided on the side wall of the frame (1) near the pressing assembly. The blocking block (5) is adapted to the movable plate (4).

2. A horizontal core-pulling machine for a flat mold according to claim 1, characterized in that, The support assembly includes a support frame (6), on which multiple support plates (7) are fixedly installed, and the multiple support plates (7) are in contact with the bottom of the core tube (3).

3. A horizontal core-pulling machine for a flat mold according to claim 2, characterized in that, The pressing assembly includes multiple pressing plates (8), each of which has a connecting rod (9) at both ends. Two connecting rods (9) at both ends fix the multiple pressing plates (8) into a whole. The bottom ends of the two connecting rods (9) are fixedly connected to pressing strips (10). The pressing strips (10) slide with the frame (1). Multiple first springs (11) are fixedly installed at the bottom of the pressing strips (10). The top end of the pressing strips (10) extends through the side wall of the frame (1).

4. A horizontal core-pulling machine for a flat mold according to claim 3, characterized in that, The two movable plates (4) are movably installed on the two side walls of the core-pulling trolley (2). A second spring is connected between the movable plates (4) and the core-pulling trolley (2). The blocking block (5) is set as a ramp at one end near the movable plate (4).

5. A horizontal core-pulling machine for a flat mold according to claim 4, characterized in that, Rollers (12) are rotatably installed at the positions where the support plate (7) and the lower pressure plate (8) contact the core tube (3).

6. A horizontal core-pulling machine for a flat mold according to claim 4, characterized in that, A slide groove (13) is fixedly installed at the bottom of the frame (1). A ball screw (14) is rotatably installed inside the slide groove (13). A motor (15) is fixedly installed at one end of the slide groove (13). The output end of the motor (15) is connected to the ball screw (14). A slider (16) is threaded on the ball screw (14). The slider (16) is slidably installed inside the slide groove (13). A tension sensor (17) is fixedly installed at the bottom of the core-pulling trolley (2). The tension end of the tension sensor (17) is fixedly connected to the side wall of the slider (16). A support block (18) is fixedly installed at the bottom of the tension sensor (17). The support block (18) is slidably adapted to the ball screw (14).

7. A horizontal core-pulling machine for a flat mold according to claim 6, characterized in that, A temperature sensor (19) is provided on the core tube (3), a controller (20) is fixedly installed at one end of the frame (1), a time sensor (21) is provided on one side of the controller (20), and the controller (20) is electrically connected to the motor (15).

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