Prefabricated concrete plate manufacturing device

Abstract

The invention relates to the technical field of concrete structural member manufacturing, in particular to a prefabricated concrete plate manufacturing device which comprises a formwork, a face repairing part located beside the formwork, a galling mechanism arranged on the face repairing part and a vibrating mechanism connected with the face repairing part, and the vibrating mechanism is located on the rear side of the face repairing part. According to the prefabricated concrete plate manufacturing device, various mechanical means are introduced in a targeted mode and can be matched with one another, so that various operation procedures are smoothly completed, corresponding effects are completely and effectively obtained, manual intervention in the concrete plate manufacturing process is greatly reduced, and the manufacturing efficiency is improved. The labor amount of workers is effectively reduced, the manufacturing precision is improved through a reliable and stable mechanical structure, careless mistakes and errors are prevented, and then favorable factors are created for promoting forward development of the manufacturing level.

Description

Technical Field

[0001] The invention relates to the technical field of concrete structural component manufacturing, and in particular to a prefabricated concrete slab manufacturing device. Background Art

[0002] Precast concrete panels, also known as prefabricated concrete panels, are one of the common components in concrete structures. As an important component of building industrialization, precast concrete panels are a widely used building material in the modern construction industry. Their main advantages include fast construction speed, stable quality, and relatively low cost. With the acceleration of urbanization and the expansion of infrastructure construction, the application of precast concrete panels has increased year by year.

[0003] When manufacturing precast concrete slabs, after the formwork is built, the release agent is sprayed into the formwork, and the stirrup structure composed of steel bars is laid in the formwork, the concrete pouring begins. When pouring concrete, in order to ensure the quality of the bottom layer to ensure the density and strength of the overall pouring, the bottom layer of concrete is generally poured first, that is, the primer. This layer does not need to be laid too much, only the stirrups need to be covered. After the primer concrete is compact and another layer of steel bars is laid, the formal pouring begins. However, during the pouring, workers need to use tools such as shovels to repair the concrete immediately after the pouring machine, filling every gap until the concrete is completely filled. The surface is completely uniform; and in order to make the concrete surface solidify quickly in a short time, to lock in moisture and prevent dehydration of the concrete slab during the maintenance process, it is necessary to manually spray the hardener after pouring and standing for thirty minutes. This is a surface solidifying agent composed of liquid; finally, in order to increase the roughness of the concrete to improve its crack resistance and adhesion, workers are required to roughen the concrete slab before the concrete is completely solidified, and to draw uniform grooves on the concrete surface. Therefore, more manual intervention is required in the manufacture of concrete slabs, and the omissions and errors caused by manual operation have great limitations on improving the manufacturing level. Summary of the invention

[0004] The purpose of the present invention is to provide a prefabricated concrete slab manufacturing device to solve the above problems.

[0005] In order to achieve the above-mentioned object, the present invention provides a prefabricated concrete panel manufacturing device, comprising: a template, a trimming portion located next to the template, a roughening mechanism arranged on the trimming portion, a vibrating mechanism connected to the trimming portion, and the vibrating mechanism is located at the rear side of the trimming portion, and a spraying mechanism installed on the trimming portion, wherein: The trimming portion is driven to be inserted into the template and move at a constant speed along the long side direction of the template to push the concrete to make its surface uniform. The roughening mechanism can protrude downward from the trimming portion and can be pulled back and forth by the trimming portion to carve grooves on the concrete surface. The vibrating mechanism can be actively inserted into the concrete by relying on the movement of the trimming portion to automatically and repeatedly vibrate the concrete. The spraying mechanism can be close to the concrete in the template and can evenly spray the hardener on the concrete under the movement of the trimming portion.

[0006] Furthermore, the trimming portion includes two long grooves respectively arranged on both sides of the template, two columns respectively slidably mounted in the two long grooves, a crossbeam fixedly mounted between the two columns, and the crossbeam is grooved on the side facing the rear, a rack fixedly mounted on the side of the long groove in front, a load-bearing return plate mounted on the column in front, a motor mounted on the load-bearing return plate, a gear mounted on the output end of the motor, and the gear meshes with the rack, an extension table slidably mounted in the crossbeam, a first electric push rod mounted on the column in front, and the output end of the first electric push rod is connected to the extension table, a cylinder invertedly mounted on the extension table, a rectangular sleeve fixedly mounted on the bottom surface of the extension table, an inserted round rod slidably inserted in the rectangular sleeve, and the output end of the cylinder passes through the extension table and is connected to the inserted round rod, a three-point connecting claw connected to the end of the inserted round rod, and a scraper connected to the three-point connecting claw; The overhanging platform is centrally located on the crossbeam; The scraper is located above the template.

[0007] Furthermore, the roughening mechanism includes a channel opened on the scraper, and the channel penetrates the scraper from top to bottom, an elastic strip installed on the inner side of the bottom of the scraper, a magnetic rectangular frame installed in the top of the scraper, and a plurality of iron rods that fit through the magnetic rectangular frame and are inserted into the scraper, and the plurality of iron rods are arranged at equal intervals.

[0008] Furthermore, the hair pulling mechanism also includes a plurality of threaded rods respectively connected to the top ends of the plurality of iron rods, a joint horizontal bar threadedly connected to the plurality of threaded rods, a handle centrally mounted on the joint horizontal bar, two convex plates spaced apart and mounted on the sides of the joint horizontal bar, and two hand-tightened bolts respectively screwed on the two convex plates; The two hand-tightening bolts are screwed into the scraper.

[0009] Further, the spraying mechanism comprises a second electric push rod and a short groove strip respectively installed on opposite surfaces of the two uprights, a hollow storage component having one end connected to the output end of the second electric push rod and the other end slidably installed in the short groove strip, and the bottom surface of the hollow storage component is open, a mist-making long strip plate installed at the bottom opening of the hollow storage component, a water pump installed on the top of the crossbeam, and a delivery pipe having one end connected to the water outlet of the water pump; The other end of the delivery pipe is connected to the hollow storage member from the top; The water inlet of the water pump is connected to an external liquid storage container through a pipe, and the external liquid storage container contains a hardener; The length of the mist-making long strip is consistent with the internal width of the template.

[0010] Further, the vibrating mechanism includes an extension table connected to the extension table from the rear side, a swing cylinder installed on the extension table, a swing arm installed on the output end of the swing cylinder, a plurality of positioning hoops installed on the side of the swing arm, and a vibrating rod fixed to the swing arm through the plurality of positioning hoops; The vibrating rod head of the vibrating rod is exposed outside the plurality of positioning hoops.

[0011] Furthermore, a prefabricated concrete slab manufacturing device also includes a rectangular frame seat fixedly arranged directly below the scraper, and a soft inner frame arranged in the rectangular frame seat; The inner space of the soft inner frame matches the outer shape of the scraper.

[0012] Further, the swing arm rod is divided into a base arm and a barrier layer; A plurality of the positioning hoops are mounted on the barrier layer.

[0013] Furthermore, a prefabricated concrete panel manufacturing device further includes a shielding plate installed on the front end of the three-point connecting claw member; A plurality of the iron rods and the conjoined horizontal bars are located directly behind the shielding plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The precast concrete slab manufacturing device can follow the pouring machine closely during the formal pouring through the trimming part, contact the newly poured concrete at a suitable height, and can push the concrete back and forth in the template until all the concrete in the template is covered, thereby automatically completing the surface leveling of the poured concrete, repairing the concrete, filling the gaps existing during pouring, and effectively making the concrete surface tend to be uniform and flat; 2. The prefabricated concrete slab manufacturing device can quickly change its shape through the roughening mechanism to obtain another contact mode with the concrete, and can rely on the trimming part to move back and forth on the concrete surface, thereby ensuring that uniform grooves are drawn on the concrete surface, and automatically completing the roughening treatment of the concrete slab, thereby increasing the roughness of the concrete, thereby improving its crack resistance and bonding strength; 3. The prefabricated concrete slab manufacturing device can insert the vibrating device into the concrete to vibrate the inside of the concrete while the trimming part is leveling the concrete surface through the cooperation of the vibrating mechanism and the trimming part, thereby fully exploring the carrying function of the trimming part and achieving a linkage effect; 4. The precast concrete slab manufacturing device can actively approach the poured concrete surface through the spraying mechanism, and can spray the local hardener on the concrete slab below in the width direction of the template at one time. At the same time, driven by the trimming part, it can gradually spray various areas of the concrete slab until the spraying of the entire concrete slab is completed; 5. The prefabricated concrete slab manufacturing device has introduced a variety of mechanical means in a targeted manner, and they can cooperate with each other to smoothly complete various operation processes and obtain the corresponding effects completely and effectively, thereby greatly reducing the manual intervention in the manufacture of concrete slabs, effectively reducing the workload of manual labor, and using a reliable and stable mechanical structure to improve manufacturing accuracy, prevent omissions and errors, and thus create favorable factors for promoting the positive development of manufacturing levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 A perspective view of the present invention is shown; Figure 2 A second perspective view of the present invention is shown; Figure 3 A third perspective view of the present invention is shown; Figure 4 A fourth perspective view of the present invention is shown; Figure 5 A fifth perspective view of the present invention is shown; Figure 6 A sixth perspective view of the present invention is shown; Figure 7 A seventh perspective view of the present invention is shown; Figure 8 The present invention is shown Figure 1 A magnified image of point A; Fig. 9 The present invention is shown Figure 3 The enlarged view of point B; Fig.10 The present invention is shown Figure 4 Enlarged view of point C; Fig.11 The present invention is shown Figure 5 The enlarged view of point D; Fig.12 The present invention is shown Figure 6 The enlarged view of point E; Fig.13 The present invention is shown Figure 7 Enlarged view of point F.

[0017] In the figures, the same reference numerals denote the same structural elements, wherein: 1. Template; 2. Trimming part; 21. Long groove; 22. Column; 23. Beam; 24. Rack; 25. Load-bearing return plate; 26. Motor; 27. Gear; 28. Outrigger; 29. ​​First electric push rod; 291. Cylinder; 292. Rectangular sleeve; 293. Inserted round rod; 294. Three-point connecting claw; 295. Scraper; 3. Roughing mechanism; 31. Channel; 32. Elastic strip; 33. Magnetic rectangular frame; 34. Iron rod; 35. Threaded rod; 36 , connected horizontal bar; 37, handle; 38, convex plate; 39, hand-tightened bolt; 4, vibrating mechanism; 41, extension table; 42, swing cylinder; 43, swing arm rod; 431, base arm; 432, barrier layer; 44, positioning hoop; 45, vibrating rod; 5, spraying mechanism; 51, second electric push rod; 52, short groove strip; 53, hollow storage part; 54, mist-making long strip; 55, water pump; 56, delivery pipe; 6, rectangular frame seat; 7, soft inner frame; 8, shielding plate. DETAILED DESCRIPTION

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0019] like Figure 1-13 As shown, a prefabricated concrete panel manufacturing device comprises: a template 1, a trimming portion 2 located next to the template 1, a roughening mechanism 3 arranged on the trimming portion 2, a vibrating mechanism 4 connected to the trimming portion 2, and the vibrating mechanism 4 is located at the rear side of the trimming portion 2, and a spraying mechanism 5 installed on the trimming portion 2, wherein: The trimming portion 2 is driven to be inserted into the template 1 and move at a constant speed along the long side direction of the template 1 to push the concrete to make its surface uniform. The roughening mechanism 3 can protrude downward from the trimming portion 2 from the inside and can be pulled back and forth by relying on the trimming portion 2 to carve grooves on the concrete surface. The vibrating mechanism 4 can actively insert into the concrete by relying on the movement of the trimming portion 2 to automatically and repeatedly vibrate the concrete. The spraying mechanism 5 can be close to the concrete in the template 1 and can evenly spray the hardener on the concrete under the support of the trimming portion 2. The precast concrete slab manufacturing device can follow the pouring machine closely during the formal pouring through the trimming portion 2, and contact the newly poured concrete at a suitable height, and can push the concrete back and forth in the template 1 until all the concrete in the template 1 is completely covered, thereby automatically completing the surface leveling of the poured concrete, achieving the repair of the concrete, filling the gaps existing during the pouring, and effectively promoting the concrete surface to be uniform and flat. The roughening mechanism 3 can quickly change the shape to obtain another contact mode with the concrete, and can rely on the trimming portion 2 to scratch back and forth on the concrete surface, thereby ensuring that uniform grooves are scratched on the concrete surface, automatically completing the roughening treatment of the concrete slab, and increasing the roughness of the concrete. degree, in order to improve its crack resistance and bonding strength, through the cooperation of the vibrating mechanism 4 and the trimming portion 2, the vibrating device can be inserted into the concrete while the trimming portion 2 is leveling the concrete surface, and the inside of the concrete is vibrated, so as to fully explore the carrying function of the trimming portion 2 and achieve the linkage effect. Through the spraying mechanism 5, it can actively approach the poured concrete surface, and can complete the local hardener spraying of the concrete slab below in the width direction of the template 1 at one time. At the same time, driven by the trimming portion 2, the various areas of the concrete slab can be sprayed step by step until the spraying of the entire concrete slab is completed. The precast concrete slab manufacturing device specifically introduces a variety of mechanical means, and they can cooperate with each other to smoothly complete various operation processes and completely and effectively obtain the corresponding effects, thereby greatly reducing the manual intervention in the manufacture of concrete slabs, effectively reducing the amount of manual labor, and using a reliable and stable mechanical structure to improve manufacturing accuracy, prevent omissions and errors, and thus create favorable factors for promoting the positive development of manufacturing levels.

[0020] Optionally, the trimming portion 2 includes two long grooves 21 respectively arranged on both sides of the template 1, two columns 22 respectively slidably mounted in the two long grooves 21, a crossbeam 23 fixedly mounted between the two columns 22, and the crossbeam 23 is grooved on the side facing the rear, a rack 24 fixedly mounted on the side of the front long groove 21, a load-bearing return plate 25 mounted on the front column 22, a motor 26 mounted on the load-bearing return plate 25, and a gear 27 mounted on the output end of the motor 26, and the gear 27 is meshed with the rack 24, and is slidably mounted on the crossbeam 2 3, an extension platform 28 in the front, a first electric push rod 29 installed on the front column 22, and the output end of the first electric push rod 29 is connected to the extension platform 28, a cylinder 291 invertedly installed on the extension platform 28, a rectangular sleeve 292 fixedly installed on the bottom surface of the extension platform 28, an inserted round rod 293 slidably inserted in the rectangular sleeve 292, and the output end of the cylinder 291 passes through the extension platform 28 and is connected to the inserted round rod 293, a three-point connecting claw 294 connected to the end of the inserted round rod 293, and a scraper 295 connected to the three-point connecting claw 294; The overhanging platform 28 is centrally located on the crossbeam 23; The scraper 295 is located above the template 1. When the formal pouring begins, after the pouring machine starts pouring, the motor 26 is driven to make the gear 27 mesh with the rack 24, so that the column 22 on this side starts to move directly in the long groove 21, and is transmitted through the crossbeam 23, so that the rear column 22 starts to move in the corresponding long groove 21 synchronously. After the scraper 295 reaches the top of the template 1 with the movement of the two columns 22 and the crossbeam 23, the cylinder 291 is driven to push the inserted round rod 293 downward until the scraper 295 contacts the concrete below and then the driving cylinder 291 is stopped. In this process, the scraper 295 is inserted into the concrete at a suitable height according to the thickness of the concrete slab to be poured and the actual pouring situation to ensure that a smooth repair effect that meets the established requirements is obtained, and then the first motor is driven. The push rod 29 pushes and pulls the extension platform 28 in the beam 23, so that the scraper 295 starts to roll and push the concrete, and then relies on the scraper 295 to push the excess concrete into the gap generated during pouring, automatically completing the leveling of the concrete surface, effectively causing the concrete surface to tend to be level. After completing the leveling of the concrete in the area where the scraper 295 is currently located, the motor 26 continues to be driven to drive the scraper 295 to the next area until the leveling of the entire concrete surface is completed, ensuring effective reduction of manual intervention. In the rare case of inadequate leveling, the workers can just repair it, greatly reducing the workload; when leveling the concrete surface, the scraper 295 is first in the initial state, that is, located in the middle of the concrete slab surface, and is rolled and pushed from the middle to one side, and then the scraper 295 is reset and then rolled and pushed to the other side to ensure the leveling and repairing effect.

[0021] Optionally, the roughening mechanism 3 includes a channel 31 opened on the scraper 295, and the channel 31 penetrates the scraper 295 from top to bottom, an elastic strip 32 is installed on the inner side of the bottom of the scraper 295, a magnetic rectangular frame 33 is installed in the top of the scraper 295, and a plurality of iron rods 34 are fitted through the magnetic rectangular frame 33 and inserted into the scraper 295, and the plurality of iron rods 34 are arranged at equal intervals. Under normal circumstances, the magnetic rectangular frame 33 absorbs the plurality of iron rods 34 so that they are stationary in the scraper 295. When roughening treatment is required, all the plurality of iron rods 34 are pressed downward with force to move them downward, and the corresponding parts of the elastic strip 32 are supported, so that the plurality of iron rods 34 protrude. On the scraper 295, the cylinder 291 is then pushed down to insert the protruding iron rods 34 into the concrete at a suitable depth, and then the first electric push rod 29, the cylinder 291 and the motor 26 are driven in sequence to make the iron rods 34 gradually move back and forth on the concrete surface until uniform grooves are scratched on the concrete surface to complete the roughening process; the magnetic rectangular frame 33 can absorb and fix the iron rods 34 to ensure that they maintain the state of supporting the elastic strip 32 and protruding from the scraper 295, and at the same time, the spacing between the iron rods 34 can be adjusted under the premise of applying a certain pressure, thereby facilitating the adjustment of the spacing of the scratched grooves to ensure that different roughening effects can be flexibly obtained.

[0022] Optionally, the hair pulling mechanism 3 further includes a plurality of threaded rods 35 respectively connected to the top ends of the plurality of iron rods 34, a combined horizontal bar 36 threadedly connected to the plurality of threaded rods 35, a handle 37 centrally mounted on the combined horizontal bar 36, two convex plates 38 spaced apart and installed on the sides of the combined horizontal bar 36, and two hand-tightened bolts 39 respectively screwed on the two convex plates 38; The two hand-tightening bolts 39 are screwed into the scraper 295. When roughening is required, the two hand-tightening bolts 39 are loosened and the handle 37 is held and pressed downward. All the iron rods 34 can be pressed downward synchronously to move them downward. After they are in place, the two hand-tightening bolts 39 are screwed into the scraper 295 again, so that all the iron rods 34 can be moved downward synchronously without pressing several iron rods 34 one by one. The workload is effectively reduced and the downward movement distance of the several iron rods 34 is uniform to prevent uneven heights and ensure the roughening effect. At the same time, the positions of the several iron rods 34 that have been moved downward are reinforced by the two hand-tightening bolts 39 and the scraper 295 to prevent the several iron rods 34 from moving upward due to the resistance of concrete during the roughening process, thereby affecting the roughening process.

[0023] Optionally, the spraying mechanism 5 includes a second electric push rod 51 and a short groove strip 52 respectively installed on opposite surfaces of the two uprights 22, a hollow storage member 53 having one end connected to the output end of the second electric push rod 51 and the other end slidably installed in the short groove strip 52, and the bottom surface of the hollow storage member 53 is open, a mist-making strip plate 54 installed at the bottom opening of the hollow storage member 53, a water pump 55 installed on the top of the crossbeam 23, and a delivery pipe 56 having one end connected to the water outlet of the water pump 55, and the mist-making strip plate 54 is specifically a plate with a plurality of tiny holes arranged in an array, so that the liquid can be transformed into water mist after passing through the mist-making strip plate 54; The other end of the delivery pipe 56 is connected to the hollow storage member 53 from the top; The water inlet of the water pump 55 is connected to the external liquid storage container through a pipe, and the external liquid storage container contains hardener. When the hardener needs to be sprayed after the pouring is completed and the concrete is left to stand for thirty minutes, the hollow storage component 53 is first moved to the top of the template 1 by the driving motor 26, and then the second electric push rod 51 is driven to push the hollow storage component 53 downward, so that it moves down along the short groove strip 52 until the bottom of the hollow storage component 53 is close to the surface of the concrete, and then the water pump 55 is started to pump the hardener in the external liquid storage container into the hollow storage component 53, and under the continuous pumping of the water pump 55, the hardener is forced to be squeezed out of the mist-making strip plate 54 and sprayed on the concrete surface in the form of water mist, and at the same time, the motor 26 is driven again to drive the hollow storage component 53 to move forward slowly and uniformly until the entire concrete surface is sprayed with the hardener, so as to realize the automatic and comprehensive spraying of the hardener, and effectively reduce manual intervention; The length of the mist-making strip 54 is consistent with the internal width of the template 1, ensuring that the spraying width can cover the width of the concrete in the template 1 at one time, thereby improving the spraying efficiency.

[0024] Optionally, the vibrating mechanism 4 includes an extension platform 41 connected to the extension platform 28 from the rear side, a swing cylinder 42 installed on the extension platform 41, a swing arm 43 installed on the output end of the swing cylinder 42, a plurality of positioning hoops 44 installed on the side of the swing arm 43, and a vibrating rod 45 fixed to the swing arm 43 through the plurality of positioning hoops 44; The vibrating rod head of the vibrating rod 45 is exposed outside the plurality of positioning hoops 44. When the formal pouring is carried out, after the scraper 295 has moved forward to a corresponding distance, the vibrating rod 45 is started and the swing cylinder 42 is driven to swing the swing arm 43 downward in an arc until the vibrating rod 45 falls into the concrete. The vibrating rod 45 then starts to vibrate the concrete. At the same time, with the continuous forward movement of the two columns 22 and the first electric push rod 29 pulling the extension platform 28 back and forth, the vibrating rod 45 moves forward and back and forth synchronously, thereby automatically and comprehensively vibrating the concrete immediately after the scraper 295.

[0025] Optionally, a prefabricated concrete slab manufacturing device further includes a rectangular frame seat 6 fixedly disposed directly below the scraper 295, and a soft inner frame 7 arranged in close contact with the rectangular frame seat 6; The internal space of the soft inner frame 7 matches the shape of the scraper 295. After the scraper 295 is reset after the concrete surface is leveled and repaired, the scraper 295 is continuously pushed downward by the cylinder 291 to enter the soft inner frame 7. During this process, the concrete adhered to the peripheral surface of the scraper 295 is scraped off by the friction between the scraper 295 and the soft inner frame 7, thereby immediately completing the cleaning of the scraper 295 and preventing the concrete from condensing and accumulating on the scraper 295 for a long time, causing cleaning difficulties.

[0026] Optionally, the swing arm 43 is divided into a base arm 431 and a barrier layer 432; Several of the positioning hoops 44 are installed on the barrier layer 432. The barrier layer 432 can be made of a material with a buffering effect such as rubber. Therefore, when the concrete is vibrated, the barrier layer 432 can effectively block the vibration generated by the vibrating rod 45 to prevent the vibration force from being transmitted to the swing cylinder 42 and the extension platform 41 for a long time, resulting in negative effects such as abnormal looseness of the structure or abnormal function.

[0027] Optionally, a prefabricated concrete slab manufacturing device further includes a shielding plate 8 mounted on the front end of the three-point connecting claw member 294; The iron rods 34 and the combined horizontal bars 36 are located directly behind the shielding plate 8. The shielding plate 8 is used to shield the iron rods 34, the combined horizontal bars 36 and the two hand-tightened bolts 39 to achieve a protective effect. During the formal pouring, all splashes of concrete poured by the pouring machine in the front are blocked to prevent concrete splashes from adhering to the iron rods 34, the combined horizontal bars 36 and the two hand-tightened bolts 39 and blocking them, thereby preventing them from being used normally.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A prefabricated concrete slab manufacturing device, characterized in that: include: A template (1), a trimming portion (2) located next to the template (1), a roughening mechanism (3) arranged on the trimming portion (2), a vibrating mechanism (4) connected to the trimming portion (2), the vibrating mechanism (4) being located at the rear side of the trimming portion (2), and a spraying mechanism (5) installed on the trimming portion (2), wherein: The trimming portion (2) is driven to be inserted into the template (1) and to move at a constant speed along the long side direction of the template (1) to push the concrete and make its surface uniform; the roughening mechanism (3) can protrude downward from the trimming portion (2) from the inside and can be pulled back and forth by the trimming portion (2) to carve grooves on the concrete surface; The vibrating mechanism (4) can be actively inserted into the concrete by relying on the movement of the trimming portion (2) to automatically and repeatedly vibrate the concrete. The spraying mechanism (5) can be close to the concrete in the formwork (1) and can evenly spray the hardener onto the concrete under the movement of the trimming portion (2).

2. The precast concrete slab manufacturing device according to claim 1, characterized in that: The trimming portion (2) comprises two long grooves (21) respectively arranged on both sides of the template (1), two columns (22) respectively slidably mounted in the two long grooves (21), a crossbeam (23) fixedly mounted between the two columns (22), and the crossbeam (23) is grooved on the side facing the rear, a rack (24) fixedly mounted on the side of the front long groove (21), a load-bearing return plate (25) mounted on the front column (22), a motor (26) mounted on the load-bearing return plate (25), and a gear (27) mounted on the output end of the motor (26), wherein the gear (27) meshes with the rack (24) and is slidably mounted on the crossbeam (23). An extension platform (28) inside, a first electric push rod (29) installed on the front column (22), and the output end of the first electric push rod (29) is connected to the extension platform (28), a cylinder (291) installed inverted on the extension platform (28), a rectangular sleeve (292) fixedly installed on the bottom surface of the extension platform (28), an inserted round rod (293) slidably inserted in the rectangular sleeve (292), and the output end of the cylinder (291) passes through the extension platform (28) and is connected to the inserted round rod (293), a three-point connecting claw member (294) connected to the end of the inserted round rod (293), and a scraper (295) connected to the three-point connecting claw member (294); The overhanging platform (28) is centrally located on the crossbeam (23); The scraper (295) is located above the template (1).

3. The precast concrete slab manufacturing device according to claim 2, characterized in that: The roughening mechanism (3) comprises a channel (31) opened on the scraper (295), and the channel (31) penetrates the scraper (295) from top to bottom, an elastic strip (32) whose circumference is installed on the inner side surface of the bottom of the scraper (295), a magnetic rectangular frame (33) installed inside the top of the scraper (295), and a plurality of iron rods (34) that fit through the magnetic rectangular frame (33) and are inserted into the scraper (295), and the plurality of iron rods (34) are arranged at equal intervals.

4. The precast concrete slab manufacturing device according to claim 3, characterized in that: The roughening mechanism (3) further comprises a plurality of threaded rods (35) respectively connected to the top ends of the plurality of iron rods (34), a combined horizontal bar (36) threadedly connected to the plurality of threaded rods (35), a handle (37) centrally mounted on the combined horizontal bar (36), two convex plates (38) spaced apart and mounted on the sides of the combined horizontal bar (36), and two hand-tightened bolts (39) respectively screwed on the two convex plates (38); The two hand-tightening bolts (39) are screwed into the scraper (295).

5. The precast concrete slab manufacturing device according to claim 4, characterized in that: The spraying mechanism (5) comprises a second electric push rod (51) and a short groove strip (52) respectively mounted on opposite surfaces of the two uprights (22), a hollow storage member (53) having one end connected to the output end of the second electric push rod (51) and the other end slidably mounted in the short groove strip (52), and the bottom surface of the hollow storage member (53) is open, a mist-making long strip plate (54) mounted at the bottom opening of the hollow storage member (53), a water pump (55) mounted on the top of the crossbeam (23), and a delivery pipe (56) having one end connected to the water outlet of the water pump (55); The other end of the delivery pipe (56) is connected to the hollow storage element (53) from the top; The water inlet of the water pump (55) is connected to an external liquid storage container through a pipe, and the external liquid storage container contains a hardener; The length of the mist-making strip plate (54) is consistent with the internal width of the template (1).

6. The precast concrete slab manufacturing device according to claim 5, characterized in that: The vibrating mechanism (4) comprises an extension platform (41) connected to the extension platform (28) from the rear side, a swing cylinder (42) mounted on the extension platform (41), a swing arm (43) mounted on the output end of the swing cylinder (42), a plurality of positioning hoops (44) mounted on the side of the swing arm (43), and a vibrating rod (45) fixed to the swing arm (43) via the plurality of positioning hoops (44); The vibrating rod head of the vibrating rod (45) is exposed outside the plurality of positioning hoops (44).

7. The precast concrete slab manufacturing device according to claim 6, characterized in that: A prefabricated concrete slab manufacturing device further comprises a rectangular frame seat (6) fixedly arranged directly below the scraper (295), and a soft inner frame (7) arranged in close contact with the rectangular frame seat (6); The internal space of the soft inner frame (7) matches the outer shape of the scraper (295).

8. The precast concrete slab manufacturing device according to claim 7, characterized in that: The swing arm (43) is divided into a base arm (431) and a barrier layer (432); A plurality of the positioning hoops (44) are mounted on the barrier layer (432).

9. The precast concrete slab manufacturing device according to claim 8, characterized in that: A prefabricated concrete slab manufacturing device further comprises a shielding plate (8) mounted on the front end of the three-point connection claw member (294); The plurality of iron rods (34) and the combined horizontal bars (36) are located directly behind the shielding plate (8).

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