Ejecting device for concrete prefabricating mold
The material ejecting device for concrete precast molds addresses the adhesion issue by using a motor-driven cam system and worm gears to efficiently separate precast parts from the mold, enhancing demolding efficiency and reducing labor.
Patent Information
- Application Number
- CN202420684862.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-07
AI Technical Summary
Existing concrete precast molds face difficulties in efficiently separating precast concrete parts due to strong adhesion between the bottom surface of the concrete and the top plate, making it laborious to lift the precast parts out of the mold.
A material ejecting device for concrete precast molds is designed with a motor-driven cam system, extrusion plates, and connecting sliders, allowing for alternate upward movement of cams and plates to separate the precast parts from the mold, combined with worm gears and screws to facilitate complete separation.
The device enables labor-saving and efficient removal of precast concrete parts by alternately lifting and separating them from the mold, reducing manual effort and time required for demolding.
Smart Images

Figure CN222201007U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete prefabrication, in particular to a material ejecting device for a concrete prefabrication mould. Background Art
[0002] Precast concrete parts are a type of component used in construction, transportation, water conservancy and other fields. Compared with cast-in-place concrete, factory-produced precast concrete parts have certain advantages in safety, quality, speed and cost.
[0003] A Chinese patent discloses a plastic mold for concrete precast parts, with the publication number CN219325339U, comprising a mold shell, a mold groove is provided on the top surface of the mold shell, a square groove is provided on the bottom surface of the mold groove, two through holes are provided on the bottom surface of the square groove, two through holes are slidably connected inside the two through holes, the tops of the two cylinders are fixedly connected to the top material plate, the top material plate is plugged into the square groove, and the bottoms of the two cylinders are fixedly connected to the bottom plate. The utility model cooperates with various components, and when the concrete precast parts are completed, the top material plate can separate the completed concrete precast parts from the mold shell, avoiding direct knocking on the mold shell for demoulding, ensuring the integrity of the concrete precast parts, and the demoulding speed is fast, saving time and labor. The utility model cooperates with various components, and when the concrete is poured into the mold groove, the position of the scraper is adjusted according to the required thickness, and then the handles on both sides are pushed to smooth the concrete, which not only ensures the flatness of the concrete, but also saves time and labor, and provides convenience for the staff.
[0004] However, there are still the following disadvantages: the device uses a top plate to lift the concrete precast upwards, but the bottom surface of the concrete precast and the top plate have a large adhesion force, so it is more laborious to lift the concrete precast upwards. Therefore, we propose a top material device for concrete precast molds to solve this problem. Utility Model Content
[0005] The utility model aims to provide a material ejecting device for a concrete precast mould to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above object, the utility model provides the following technical solution: a material ejecting device for a concrete precast mold, comprising a box body, a groove is provided on the top surface of the box body, a mounting cavity is provided inside the box body, a shaping device is provided inside the box body, and the shaping device comprises a top mold part;
[0007] The top mold part includes a bottom plate, a motor, a cam, an extrusion plate and a connecting slider, the left end surface of the motor is fixedly connected to the right end surface of the box body, and the outer surface of the left end of the motor output shaft rotates through the right end surface of the box body through the second bearing and extends to the inside of the installation cavity;
[0008] A splicing portion is provided above the bottom plate;
[0009] The splicing part includes a second screw long plate, a first screw, a worm gear, a mounting tube, a fixed block, a worm and a short plate. The bottom surface of the short plate is slidably connected to the top surface of the bottom plate, the bottom surface of the long plate is slidably connected to the top surface of the bottom plate, and the outer surface of the mounting tube rotates through the inner wall of the box body through the first bearing and extends to the outside of the box body.
[0010] A further improvement is that the outer surface of the bottom end of the connecting slider slides through the inner wall of the box and extends to the inside of the installation cavity, and the top surface of the extrusion plate is fixedly connected to the bottom surface of the connecting slider. By setting the connecting slider and the extrusion plate, it is convenient to push the preform upward.
[0011] A further improvement is that the cam is fixedly sleeved on the outer surface of the motor output shaft, and the bottom surface of the extrusion plate is extruded and slidably connected to the outer surface of the cam. By setting the cam and the motor, starting the motor, and driving the cam to rotate, the cam lifts the extrusion plate, the connecting slider and the bottom plate upward, thereby facilitating lifting the preform upward.
[0012] A further improvement is that four of the base plates, cams, extrusion plates and connecting sliders are provided, and the adjacent cams are installed in opposite directions. By arranging the multiple cams in reverse, it is convenient to move the multiple base plates alternately upward, so that the bottom surface of the precast concrete part is alternately separated from the multiple base plates, and finally the precast concrete part is separated from the base plate.
[0013] A further improvement is that the outer surface of the first screw is fixedly connected to the outer surface of the long board, and the outer surface of the first screw extends to the inside of the mounting tube and is threadedly connected to the inner wall of the mounting tube. By arranging the first screw, the mounting tube and the long board, the mounting tube is rotated to drive the two first screws to drive the two long boards away from each other, so that the outer surface of the precast concrete part is separated from the long board.
[0014] A further improvement is that the worm gear is fixedly sleeved on the outer surface of the mounting tube, the fixed block is rotatably sleeved on the outer surface of the worm through a third bearing, the outer surface of the fixed block is fixedly connected to the outer surface of the box body, the outer surface of the worm gear is meshingly connected to the outer surface of the worm, and by setting the worm wheel, worm and fixed block, the worm is rotated to drive the worm wheel and the mounting tube to rotate, thereby controlling the overall movement of the long board.
[0015] A further improvement is that the outer surface of the second screw is rotatably connected to the outer surface of the short plate through a bearing seat, and the outer surface thread of the second screw penetrates the inner wall of the box and extends to the outside of the box. By arranging the second screw and the short plate, the second screw is rotated to drive the two short plates away from each other, so that the precast concrete part is separated from the baffle.
[0016] Compared with the prior art, the utility model has the following beneficial effects: the ejecting device for the concrete precast mold is provided with a bottom plate, a motor, a cam, an extrusion plate and a connecting slider, the motor is started, and the motor output shaft drives the cam to rotate, so that the cam pushes the extrusion plate upward, and the extrusion plate drives the connecting slider and the bottom plate to move upward, so that the bottom plate pushes the concrete precast part upward, and because the adjacent cams are installed in opposite directions, the adjacent cams alternately push the concrete precast part upward, so that the bottom surface of the concrete precast part is separated from the top surface of the bottom plate, and finally the concrete precast part is separated from all the bottom plates, so that it is more labor-saving to take out the concrete precast part upward; by providing a long plate, a first screw, a worm gear, an installation barrel, a fixing block and a worm, the worm is rotated, the worm drives the worm gear to rotate, the worm gear drives the installation barrel to rotate, and the installation barrel drives the first screw and the long plate to move, so that the two long plates are separated, and the long plate is separated from the left and right end surfaces of the concrete precast part; by providing a short plate and a second screw, the second screw is rotated so that the second screw drives the short plate to separate, so that the short plate is separated from the front and rear end surfaces of the concrete precast part. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0018] Figure 2 This is a sectional view of the three-dimensional structure of the utility model;
[0019] Figure 3 for Figure 2 A magnified view of the structure at center;
[0020] Figure 4 It is a partial cross-sectional view of the three-dimensional structure of the utility model;
[0021] Figure 5 It is a partial sectional view of the left side of the three-dimensional structure of the utility model.
[0022] In the figure: 1 box body, 2 shaping device, 21 top mold part, 211 bottom plate, 212 motor, 213 cam, 214 extrusion plate, 215 connecting slider, 221 long plate, 222 first screw, 223 worm gear, 224 mounting tube, 225 fixing block, 226 worm, 227 short plate, 228 second screw. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-Figure 5The utility model provides a technical solution: a top material device for a concrete precast mold, comprising a box body 1, a groove is provided on the top surface of the box body 1, a mounting cavity is provided inside the box body 1, a shaping device 2 is provided inside the box body 1, and the shaping device 2 includes a top mold part 21;
[0025] The top mold part 21 includes a bottom plate 211, a motor 212, a cam 213, an extrusion plate 214 and a connecting slider 215. The left end surface of the motor 212 is fixedly connected to the right end surface of the box body 1. The outer surface of the left end of the output shaft of the motor 212 rotates through the right end surface of the box body 1 through the second bearing and extends to the inside of the installation cavity. The outer surface of the bottom end of the connecting slider 215 slides through the inner wall of the box body 1 and extends to the inside of the installation cavity. The top surface of the extrusion plate 214 is fixedly connected to the bottom surface of the connecting slider 215.
[0026] The cam 213 is fixedly sleeved on the outer surface of the output shaft of the motor 212, and the bottom surface of the extrusion plate 214 is extruded and slidably connected with the outer surface of the cam 213. Four bottom plates 211, cams 213, extrusion plates 214 and connecting slide blocks 215 are provided. The installation directions of adjacent cams 213 are opposite. By providing the bottom plate 211, the motor 212, the cam 213, the extrusion plate 214 and the connecting slide block 215, the motor 212 is started, and the output shaft of the motor 212 drives the cam 213 to rotate, so that the cam 213 pushes the extrusion plate 214 upward, and the extrusion plate 214 drives the connecting slide block 215 and the bottom plate 211 to move upward, so that the bottom plate 211 pushes the precast concrete part upward. Since the installation directions of adjacent cams are opposite, the adjacent cams 213 alternately push the precast concrete part upward, so that the bottom surface of the precast concrete part is separated from the top surface of the bottom plate 211, and finally the precast concrete part is separated from all the bottom plates 211, so that it is more labor-saving to take out the precast concrete part upward.
[0027] A splicing portion is provided above the bottom plate 211;
[0028] The splicing part includes a second screw 228, a long plate 221, a first screw 222, a worm wheel 223, a mounting tube 224, a fixing block 225, a worm 226 and a short plate 227. The bottom surface of the short plate 227 is slidably connected to the top surface of the bottom plate 211, the bottom surface of the long plate 221 is slidably connected to the top surface of the bottom plate 211, the outer surface of the mounting tube 224 rotates through the inner wall of the box body 1 through the first bearing and extends to the outside of the box body 1, the outer surface of the first screw 222 is fixedly connected to the outer surface of the long plate 221, and the outer surface of the first screw 222 extends to the inside of the mounting tube 224 and is threadedly connected to the inner wall of the mounting tube 224;
[0029] The worm wheel 223 is fixedly sleeved on the outer surface of the installation cylinder 224, the fixed block 225 is rotatably sleeved on the outer surface of the worm 226 through the third bearing, the outer surface of the fixed block 225 is fixedly connected to the outer surface of the box body 1, the outer surface of the worm wheel 223 is meshedly connected to the outer surface of the worm 226, and the long plate 221, the first screw 222, the worm wheel 223, the installation cylinder 224, the fixed block 225 and the worm 226 are arranged, and the worm 226 is rotated, the worm 226 drives the worm wheel 223 to rotate, the worm wheel 223 drives the installation cylinder 224 to rotate, and the installation cylinder 224 drives the first screw 222 and the long plate 221 to move, so that the two long plates 221 are separated, and the long plate 221 is separated from the left and right end surfaces of the concrete precast part;
[0030] The outer surface of the second screw 228 is rotatably connected to the outer surface of the short plate 227 through a bearing seat. The outer surface thread of the second screw 228 penetrates the inner wall of the box body 1 and extends to the outside of the box body 1. By setting the short plate 227 and the second screw 228, the second screw 228 is rotated to make the second screw 228 drive the short plate 227 to separate, so that the short plate 227 is separated from the front and rear end surfaces of the concrete precast part.
[0031] When in use, after the production of the precast concrete part is completed, the second screw 228 is rotated, and the second screw 228 drives the short plate 227UI to separate from the precast concrete part, and the worm 226 is rotated, and the worm 226 drives the worm wheel 223 to rotate, and the worm wheel 223 drives the installation cylinder 224 to rotate, and the installation cylinder 224 drives the first screw 222 to move, and the first screw 222 drives the long plate 221 to separate from the precast concrete part, and the motor 212 is started, and the output shaft of the motor 212 drives the cam 213 to rotate, and the cam 213 pushes the extrusion plate 214 upward, and the extrusion plate 214 drives the connecting slider 215 and the bottom plate 211 to move upward, and the bottom plate 211 drives the precast concrete part to push upward.
[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A material ejecting device for a concrete precast mold, comprising a box (1), Features: The top surface of the box body (1) is provided with a groove, the interior of the box body (1) is provided with a mounting cavity, the interior of the box body (1) is provided with a shaping device (2), and the shaping device (2) comprises a top mold portion (21); The top mold part (21) comprises a bottom plate (211), a motor (212), a cam (213), an extrusion plate (214) and a connecting slider (215); the left end surface of the motor (212) is fixedly connected to the right end surface of the box body (1); the outer surface of the left end of the output shaft of the motor (212) rotates through the right end surface of the box body (1) via a second bearing and extends to the inside of the installation cavity; A splicing portion is provided above the bottom plate (211); The splicing portion comprises a second screw (228), a long plate (221), a first screw (222), a worm wheel (223), a mounting tube (224), a fixing block (225), a worm (226) and a short plate (227); the bottom surface of the short plate (227) is slidably connected to the top surface of the bottom plate (211); the bottom surface of the long plate (221) is slidably connected to the top surface of the bottom plate (211); and the outer surface of the mounting tube (224) rotates through the inner wall of the box body (1) via a first bearing and extends to the outside of the box body (1).
2. A material ejecting device for a precast concrete mold according to claim 1, Features: The outer surface of the bottom end of the connecting slider (215) slides through the inner wall of the box body (1) and extends to the inside of the installation cavity, and the top surface of the extrusion plate (214) is fixedly connected to the bottom surface of the connecting slider (215).
3. A material ejecting device for a precast concrete mold according to claim 1, Features: The cam (213) is fixedly sleeved on the outer surface of the output shaft of the motor (212), and the bottom surface of the extrusion plate (214) is extrusion-slidably connected to the outer surface of the cam (213).
4. A material ejecting device for a precast concrete mold according to claim 1, Features: Four of each of the bottom plate (211), cam (213), pressing plate (214) and connecting slider (215) are provided, and adjacent cams (213) are installed in opposite directions.
5. A material ejecting device for a precast concrete mold according to claim 1, Features: The outer surface of the first screw rod (222) is fixedly connected to the outer surface of the long plate (221); the outer surface of the first screw rod (222) extends into the interior of the installation cylinder (224) and is threadedly connected to the inner wall of the installation cylinder (224).
6. A material ejecting device for a precast concrete mold according to claim 1, Features: The worm wheel (223) is fixedly sleeved on the outer surface of the mounting cylinder (224); the fixed block (225) is rotatably sleeved on the outer surface of the worm (226) via a third bearing; the outer surface of the fixed block (225) is fixedly connected to the outer surface of the housing (1); and the outer surface of the worm wheel (223) is meshingly connected to the outer surface of the worm (226).
7. A material ejecting device for a precast concrete mold according to claim 1, Features: The outer surface of the second screw rod (228) is rotatably connected to the outer surface of the short plate (227) via a bearing seat, and the outer surface of the second screw rod (228) has a thread that penetrates the inner wall of the box body (1) and extends to the outside of the box body (1).
Citation Information
Patent Citations
Plastic mold for precast concrete
CN219325339U
