Concrete precast block preparation equipment

Abstract

The invention relates to the technical field of concrete precast blocks, in particular to concrete precast block preparation equipment which comprises a conveying mechanism, and the conveying mechanism comprises two supporting plates and is used for conveying a concrete precast block forming appliance. According to the device, the first rotating shaft and the two chain wheels can be driven to rotate through the output end of the gear motor, so that the two chains and the other two chain wheels are driven to move, and the multiple separation shells can be driven to move horizontally through the moving U-shaped base; the conveying mechanism can be used for driving a plurality of molds to complete concrete pouring, concrete oscillation, scraped material recovery and final film covering maintenance work when the molds move forwards, and all the separation shells can be conveyed at the same time, so that the preparation efficiency of concrete precast blocks can be improved in an automatic moving preparation mode; and after concrete is poured into the four molds in the partition shell through external pouring equipment, the conveying mechanism can move the partition shell to the top of the rotating disc for oscillation operation.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated concrete blocks, in particular to a prefabricated concrete block preparation device. Background Art

[0002] Concrete is a building material, which refers to the general term for engineering composite materials in which aggregates are bonded into a whole by cementitious materials. The usual term concrete refers to cement as a cementitious material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion. The cement concrete obtained by mixing is widely used in civil engineering. Concrete has the characteristics of abundant raw materials, low price, and simple production process, so its usage is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. Concrete prefabricated components are building components made in advance in factories with concrete as the basic material, including beams, slabs, columns and building decoration accessories. The main function of prefabricated blocks is to increase the construction speed of airtight and void filling in coal mines and improve production efficiency. For strata with poor self-bearing capacity, prefabricated blocks are embedded in the groove to form a support and protective structure. This kind of concrete block is light in weight, has good airtight performance, and can be prefabricated into block products, which can be used when it arrives at the site, and no special equipment needs to be purchased, which improves construction efficiency and saves costs.

[0003] The method for making precast concrete blocks is mostly to pour the prepared concrete into the mold, and then the workers put the vibrators into the mold one by one to vibrate to reduce the amount of pores after the concrete solidifies, and then cover the tops of multiple molds with plastic film. The purpose of covering with a layer of plastic film is to prevent the internal cement from evaporating too quickly, because cement needs a certain amount of water for hydration reaction to enhance the strength of the precast concrete blocks. If it evaporates too quickly, it may cause surface cracking, peeling, etc., thereby affecting the durability and strength of the concrete. Existing precast concrete blocks rely on manual covering with plastic film in the final stage of preparation. The manual covering speed is slow and it is easy to have incomplete covering, resulting in low preparation efficiency of the precast blocks. Summary of the invention

[0004] The object of the present invention is to provide a concrete precast block preparation device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A concrete prefabricated block preparation device, comprising:

[0007] A conveying mechanism, the conveying mechanism comprising two supporting plates, used for conveying the precast concrete block forming device;

[0008] A film clamping mechanism is arranged at equal distances on the conveying mechanism and is used to clamp the plastic film;

[0009] A recycling mechanism, arranged between the conveying mechanisms, for recycling excess concrete;

[0010] The scraper mechanism is arranged on the top of the conveying mechanism and is used to scrape away the excess concrete being poured;

[0011] A film covering mechanism is used to cover the top of a concrete precast block forming device with a plastic film; the film covering mechanism comprises a cylinder 1, a movable plate is fixedly connected to the end of the cylinder 1, two cylinders 2 are fixedly connected to the bottom of the movable plate, a frame is fixedly connected between the bottom ends of the two cylinders 2, four suction cups connected to the interior of the frame are symmetrically fixedly connected to the bottom of the frame with respect to its vertical center plane, a connecting pipe is fixedly connected to the top of the frame, and a suction pump is fixedly arranged at the center position of the top of the connecting pipe.

[0012] Furthermore, the conveying mechanism comprises:

[0013] The first rotating shaft is provided with two and is rotatably connected between the two ends of the two supporting plates;

[0014] There are four sprockets, all of which are fixedly sleeved on the end of the first rotating shaft;

[0015] The chain is provided with two and meshes and sleeves between the two sprockets;

[0016] A plurality of U-shaped seats are provided and fixedly connected to the chain at equal distances;

[0017] A reduction motor, wherein the output end of the reduction motor is fixedly connected to the end of the first rotating shaft.

[0018] Furthermore, the conveying mechanism comprises:

[0019] Rotating rollers, two of which are provided;

[0020] There are two synchronous pulleys, both of which are fixedly sleeved on the ends of the rotating rollers;

[0021] The transmission belt is sleeved between two synchronous pulleys;

[0022] A driving motor 1, wherein the output end of the driving motor 1 is fixedly connected to the end of the rotating roller;

[0023] The rotating disk is fixedly sleeved on the outer wall of the rotating roller at equal distances;

[0024] A plurality of driving rods are provided, which are fixedly connected to the outer wall of the rotating disk in an annular shape with equal distances;

[0025] A plurality of rubber balls are provided, and all of them are movably connected to the end of the driving rod.

[0026] Furthermore, the film clamping mechanism comprises:

[0027] A separator shell is arranged equidistantly between the two chains;

[0028] Discharge chutes are provided in the partition shell at equal distances;

[0029] There are two cylinders, which are symmetrically fixedly connected at the center of the end of the partition shell, and the cylinders are slidably engaged with the U-shaped seat;

[0030] Four damping shafts are provided and symmetrically rotated and connected to opposite side walls of the partition shell;

[0031] Two folding splints are provided, both of which are rotatably connected between the two damping shafts;

[0032] The elastic layer is fixedly arranged on the side wall of the folding surface clamping plate.

[0033] Furthermore, a plurality of molds are slidably embedded and connected in the partition shell at an equal distance, two buffer springs are symmetrically fixedly connected to the molds, and ends of the buffer springs are fixedly connected to the inside of the partition shell.

[0034] Furthermore, the recycling mechanism comprises:

[0035] The supporting cavity shells are provided in three pieces and are slidably arranged at the bottom of the partition shell;

[0036] A recovery cylinder is fixedly connected to the end of the support cavity shell, and the recovery cylinder is communicated with the interior of the support cavity shell;

[0037] A second driving motor is fixedly connected to the end of the recovery cylinder;

[0038] The auger is rotatably sleeved inside the recovery drum, and the end of the auger is fixedly connected to the second output end of the driving motor;

[0039] The top support plate is fixedly connected to the bottom of the recovery cylinder.

[0040] Furthermore, the scraping mechanism comprises:

[0041] There are two movable shovel plates, which are slidably connected to the top of the partition shell;

[0042] A bidirectional screw rod is screwed and connected between two moving shovel plates;

[0043] A servo motor, wherein the output end of the servo motor is fixedly connected to the end of the bidirectional lead screw.

[0044] Furthermore, the scraping mechanism comprises:

[0045] Two support columns are provided, which are rotatably connected to both ends of the bidirectional screw rod;

[0046] The limiting column is fixedly connected between the two supporting columns and is slidably embedded in the top end of the movable shovel plate.

[0047] Furthermore, two abutting rods are symmetrically fixedly connected to opposite side walls of the frame, and ends of the abutting rods abut against ends of the folding surface clamping plates.

[0048] Furthermore, a storage plate is provided on one side of the frame, a plastic film is carried on the storage plate, both ends of the storage plate are fixedly connected to fixing frames, and a plurality of conveying rollers are rotatably connected between the two fixing frames at equal distances.

[0049] Compared with the prior art, the present invention has the following beneficial effects:

[0050] 1. A partition shell with multiple molds arranged inside is placed on a U-shaped seat on two chains, so that the cylinder and the U-shaped seat are nested, and the output end of the reduction motor can drive the first shaft and two sprockets to rotate, thereby driving the two chains and the other two sprockets in motion, so that the mobile U-shaped seat can drive multiple partition shells to translate, and the conveying mechanism can drive multiple molds to complete the pouring of concrete, oscillation of concrete, scraping and recycling, and the final film covering and curing work while moving forward, and each partition shell can be conveyed at the same time, so that the preparation efficiency of concrete precast blocks can be improved through the method of automated mobile preparation, and the four molds in the partition shell are poured by external pouring equipment to complete the concrete Finally, the conveying mechanism can move the partition shell to the top of the rotating disk, and then drive the synchronous pulley to rotate through the output end of the driving motor, and the two rotating rollers can be driven to rotate at the same time under the action of the transmission belt, and then the multiple rotating disks on the outer wall of the rotating roller can simultaneously drive the multiple driving rods to rotate, so that the rubber balls at the ends of the multiple driving rods can knock and vibrate the bottom of the mold. Since buffer springs are arranged on both sides of the mold, the mold can slide and vibrate up and down in the partition shell, which can improve the density of the concrete, reduce the pores and cracks of the precast block after molding, thereby improving the strength of the concrete precast block, and can also reduce quality defects such as honeycomb and pockmarks on the concrete surface, thereby improving the appearance quality of the precast block.

[0051] 2. The output end of the servo motor in the scraper mechanism drives the bidirectional screw to rotate, thereby driving the two mobile shovels to move relative to each other, and the bottom end of the mobile shovel slides with the top of the partition shell. At this time, the mobile shovel is located between the two side plates of the partition shell. The mobile shovel can scrape the excess concrete overflowing from the top of the mold, and the excess concrete will be scraped into the discharge chute. Since the discharge chute is located at the top of the support cavity shell, the excess concrete will fall into the opening at the top of the support cavity shell, and then flow into the recovery cylinder through the inclined surface of the support cavity shell. The second output end of the drive motor drives the auger to rotate, so that the concrete can be transported and discharged for recycling, so that the production materials can be quickly recovered through the scraper mechanism and the recovery mechanism, which is beneficial to environmentally friendly production and saves production costs.

[0052] 3. The connecting pipe can be evacuated by a suction pump, and the connecting pipe is connected to the hollow frame. When the four suction cups press the plastic film on the placement plate, the suction pump is used to evacuate air to generate negative pressure, thereby lifting the plastic film and pressing it down to the top of the partition shell. Then, air is supplied into the frame by the suction pump, so that the four suction cups spray out air, which can make the plastic film adhere to the two side walls of the partition shell along the length direction. When the frame descends, the four abutting rods will be driven to descend and abut the ends of the folding surface clamps, so that the two folding surface clamps rotate in opposite directions, so that the two ends of the plastic film along the length direction can be clamped by the folding surface clamps, so that multiple molds can be covered to prevent the concrete moisture from evaporating too quickly, which is helpful to improve the strength and durability of the concrete precast blocks, and the coverage is relatively complete, and does not need to rely on manual covering, so that the prepared concrete precast blocks are automatically maintained, thereby improving the construction efficiency of the concrete precast blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0054] Figure 2 It is a schematic diagram of the overall top view structure of the present invention;

[0055] Figure 3 It is a schematic diagram of the structure of the conveying mechanism in the present invention;

[0056] Figure 4 It is a schematic diagram of the connecting structure of the rotating roller in the present invention;

[0057] Figure 5 It is a schematic diagram of the structure of the film clamping mechanism in the present invention;

[0058] Figure 6 It is a schematic diagram of the mold structure in the present invention;

[0059] Figure 7 It is a schematic diagram of the structure of the recovery mechanism in the present invention;

[0060] Figure 8 It is a schematic diagram of the structure of the scraping mechanism in the present invention;

[0061] Fig. 9 It is a schematic diagram of the structure of the membrane covering mechanism in the present invention.

[0062] In the figure: 100, conveying mechanism; 101, support plate; 102, rotating shaft 1; 103, sprocket; 104, chain; 105, U-shaped seat; 106, reduction motor; 107, rotating roller; 108, synchronous pulley; 109, transmission belt; 110, driving motor 1; 111, rotating disk; 112, driving rod; 113, rubber ball; 200, film clamping mechanism; 201, partition shell; 202, discharge chute; 203, cylinder; 204, damping rotating shaft; 205, folding splint; 206, elastic layer; 207, mold; 208, buffer spring; 300 , recovery mechanism; 301, support chamber shell; 302, recovery cylinder; 303, drive motor 2; 304, auger; 305, top support plate; 400, scraper mechanism; 401, support column; 402, limit column; 403, bidirectional screw rod; 404, movable shovel plate; 405, servo motor; 500, film covering mechanism; 501, cylinder 1; 502, movable plate; 503, cylinder 2; 504, frame; 505, connecting pipe; 506, suction pump; 507, suction cup; 508, push rod; 509, fixed frame; 510, storage plate; 511, conveying roller. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] See also Figure 1-9 In an embodiment of the present invention, a concrete precast block preparation device includes: a conveying mechanism 100, which includes two support plates 101, and is used to convey a concrete precast block forming device; a film clamping mechanism 200 is equidistantly arranged on the conveying mechanism 100, and is used to clamp a plastic film; a recycling mechanism 300 is arranged between the conveying mechanisms 100, and is used to recycle excess concrete; a scraping mechanism 400 is arranged on the top of the conveying mechanism 100, and is used to scrape and remove excess poured concrete.

[0065] The conveying mechanism 100 includes: two rotating shafts 102 are provided, which are rotatably connected between the two ends of the two support plates 101; four sprockets 103 are provided, which are all fixedly sleeved on the ends of the rotating shaft 102; two chains 104 are provided, which are meshed and sleeved between the two sprockets 103; a plurality of U-shaped seats 105 are provided, which are fixedly connected to the chains 104 at equal distances; and a reduction motor 106, the output end of which is fixedly connected to the end of the rotating shaft 102. There are two rotating rollers 107; there are two synchronous pulleys 108, both of which are fixedly sleeved on the ends of the rotating rollers 107; the transmission belt 109 is sleeved between the two synchronous pulleys 108; the output end of the driving motor 110 is fixedly connected to the end of the rotating roller 107; the rotating disk 111 is fixedly sleeved on the outer wall of the rotating roller 107 at equal distances; there are multiple driving rods 112, which are fixedly connected to the outer wall of the rotating disk 111 at equal distances in an annular shape; there are multiple rubber balls 113, all of which are movably connected to the ends of the driving rods 112; the film clamping machine The structure 200 includes: a partition shell 201 is arranged between two chains 104 at equal distances; a discharge chute 202 is opened in the partition shell 201 at equal distances; two cylinders 203 are arranged, symmetrically fixedly connected at the center position of the end of the partition shell 201, and the cylinder 203 is slidably engaged with the U-shaped seat 105; four damping shafts 204 are arranged, symmetrically and rotatably connected to the opposite side walls of the partition shell 201; two folding surface clamps 205 are arranged, and both are rotatably connected between the two damping shafts 204; and an elastic layer 206 is fixedly arranged on the side walls of the folding surface clamps 205. A plurality of molds 207 are slidably embedded and connected to the partition shell 201 at equal distances, and two buffer springs 208 are symmetrically and fixedly connected to the mold 207, and the ends of the buffer springs 208 are fixedly connected to the inside of the partition shell 201.

[0066] Specifically, a partition shell 201 with multiple molds 207 disposed therein is placed on a U-shaped seat 105 on two chains 104, so that the cylinder 203 and the U-shaped seat 105 are nested, and the output end of the reduction motor 106 can drive the rotating shaft 102 and the two sprockets 103 to rotate, thereby driving the two chains 104 and the other two sprockets 103 to be in motion, so that the movable U-shaped seat 105 can drive the multiple partition shells 201 to translate, and the conveying mechanism 100 can drive the multiple molds 207 to complete the pouring of concrete, oscillation of concrete, scraping and recycling, and the final film coating and maintenance work while moving forward, and each partition shell 201 can be conveyed at the same time, so that the preparation efficiency of concrete precast blocks can be improved through the automated mobile preparation method;

[0067] After the four molds 207 in the partition shell 201 are poured with concrete by external pouring equipment, the conveying mechanism 100 can move the partition shell 201 to the top of the rotating disk 111, and then drive the synchronous pulley 108 to rotate through the output end of the driving motor 110, and the two rotating rollers 107 can be driven to rotate at the same time under the action of the transmission belt 109, and then the multiple rotating disks 111 on the outer wall of the rotating roller 107 can be used to simultaneously drive the multiple driving rods 112 to rotate, so that the rubber balls 113 at the ends of the multiple driving rods 112 can knock and vibrate the bottom of the mold 207. Since buffer springs 208 are provided on both sides of the mold 207, the mold 207 can slide and vibrate up and down in the partition shell 201, which can improve the compactness of the concrete, reduce the pores and cracks after the prefabricated block is formed, thereby improving the strength of the concrete prefabricated block, and can also reduce quality defects such as honeycomb and pockmarks on the concrete surface, thereby improving the appearance quality of the prefabricated block.

[0068] Embodiment 1

[0069] like Figure 7-8 As shown, in this embodiment, the recovery mechanism 300 includes: three support chamber shells 301 are provided, which are slidably provided at the bottom of the partition shell 201; the recovery cylinder 302 is fixedly connected to the end of the support chamber shell 301, and the recovery cylinder 302 is connected to the inside of the support chamber shell 301; the second drive motor 303 is fixedly connected to the end of the recovery cylinder 302; the auger 304 is rotatably sleeved inside the recovery cylinder 302, and the end of the auger 304 is fixedly connected to the output end of the second drive motor 303; the top support plate 305 is fixedly connected to the bottom of the recovery cylinder 302. The scraper mechanism 400 includes: two movable shovel plates 404 are provided, which are slidably connected to the top of the partition shell 201; the bidirectional screw rod 403 is screwed and connected between the two movable shovel plates 404; and the servo motor 405, the output end of the servo motor 405 is fixedly connected to the end of the bidirectional screw rod 403. Two support columns 401 are provided, which are rotatably connected to the two ends of the bidirectional screw rod 403; the limiting column 402 is fixedly connected between the two support columns 401 and is slidably embedded in the top end of the movable shovel plate 404.

[0070] In this embodiment, the bidirectional screw rod 403 is driven to rotate by the output end of the servo motor 405 in the scraper mechanism 400, thereby driving the two movable shovel plates 404 to move relative to each other, and the bottom end of the movable shovel plate 404 slides with the top of the partition shell 201. At this time, the movable shovel plate 404 is located between the two side plates of the partition shell 201. The movable shovel plate 404 can be used to scrape the excess concrete overflowing from the top of the mold 207, and the excess concrete will be scraped into the discharge chute 202. Since the discharge chute 202 is located at the top of the support cavity shell 301, the excess concrete will fall into the opening at the top of the support cavity shell 301, and then flow into the recovery barrel 302 through the inclined surface of the support cavity shell 301. The output end of the driving motor 2 303 drives the auger 304 to rotate, so that the concrete can be transported and discharged for recycling, so that the production materials can be quickly recovered through the scraper mechanism 400 and the recovery mechanism 300, which is beneficial to environmentally friendly production and saves production costs.

[0071] Embodiment 2

[0072] like Fig. 9 As shown, in this embodiment, the film covering mechanism 500 is used to cover the plastic film on the top of the concrete prefabricated block forming device; the film covering mechanism 500 includes a cylinder 1 501, the end of the cylinder 1 501 is fixedly connected to a moving plate 502, the bottom of the moving plate 502 is fixedly connected to two cylinders 2 503, a frame 504 is fixedly connected between the bottom ends of the two cylinders 2 503, the bottom of the frame 504 is symmetrically fixedly connected to four suction cups 507 connected to the inside thereof, and the top of the frame 504 is fixedly connected to the bottom of the frame 504. A connecting pipe 505 is fixedly connected, and a suction pump 506 is fixedly arranged at the top center position of the connecting pipe 505; two abutting rods 508 are symmetrically fixedly connected to the opposite side walls of the frame 504, and the ends of the abutting rods 508 are in conflict with the ends of the folding clamping plate 205; a storage plate 510 is arranged on one side of the frame 504, and a plastic film is carried on the storage plate 510, and both ends of the storage plate 510 are fixedly connected to fixing frames 509, and a plurality of conveying rollers 511 are rotatably connected with each other at an equal distance between the two fixing frames 509.

[0073] In the specific implementation, the partition shell 201 is finally moved to the bottom of the frame 504, and the frame 504 can be driven down by the two cylinders 503, and the connecting pipe 505 can be evacuated by the suction pump 506, and the connecting pipe 505 is connected to the hollow frame 504, so that when the four suction cups 507 press the plastic film on the storage plate 510, the suction pump 506 is used to evacuate the air to generate negative pressure, so that the plastic film can be lifted up and pressed down to the top of the partition shell 201, and then the suction pump 506 is used to supply air into the frame 504, so that the four suction cups 507 spray air, so that the plastic film can be attached to the partition shell 201 along the edge. On the two side walls in the length direction, when the frame 504 descends, it will drive the four abutting rods 508 to descend and abut the ends of the folding clamps 205, so that the two folding clamps 205 can rotate in opposite directions, so that the two ends of the plastic film along the length direction can be clamped by the folding clamps 205, so that multiple molds 207 can be covered to prevent the concrete moisture from evaporating too quickly, which is helpful to improve the strength and durability of the concrete precast blocks. The coverage is relatively complete and does not need to rely on manual covering, so the prepared concrete precast blocks are automatically maintained, thereby improving the construction efficiency of the concrete precast blocks.

[0074] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0075] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A concrete prefabricated block preparation device, It is characterized in that include: A conveying mechanism (100), the conveying mechanism (100) comprising two support plates (101) for conveying the precast concrete block forming device; A film clamping mechanism (200) is arranged on the conveying mechanism (100) at equal distances and is used to clamp the plastic film; A recycling mechanism (300) is arranged between the conveying mechanisms (100) and is used to recycle excess concrete; The scraping mechanism (400) is arranged on the top of the conveying mechanism (100) and is used to scrape away excess poured concrete; The film covering mechanism (500) is used for covering the top of the concrete prefabricated block forming device with a plastic film; the film covering mechanism (500) comprises a cylinder one (501), the end of the cylinder one (501) is fixedly connected to a movable plate (502), the bottom of the movable plate (502) is fixedly connected to two cylinders two (503), a frame (504) is fixedly connected between the bottom ends of the two cylinders two (503), the bottom of the frame (504) is symmetrically fixedly connected with four suction cups (507) connected to the inside thereof about its vertical center plane, the top of the frame (504) is fixedly connected to a connecting pipe (505), and a suction pump (506) is fixedly arranged at the center position of the top of the connecting pipe (505).

2. A prefabricated concrete block preparation device according to claim 1, It is characterized in that The conveying mechanism (100) comprises: Two rotating shafts (102) are provided and are rotatably connected between the two ends of the two supporting plates (101); There are four sprockets (103), all of which are fixedly sleeved on the end of the first rotating shaft (102); Two chains (104) are provided and meshedly sleeved between the two sprocket wheels (103); A plurality of U-shaped seats (105) are provided and fixedly connected to the chain (104) at equal distances; A reduction motor (106), wherein the output end of the reduction motor (106) is fixedly connected to the end of the first rotating shaft (102).

3. A precast concrete block preparation device according to claim 2, It is characterized in that The conveying mechanism (100) comprises: Two rotating rollers (107) are provided; Two synchronous pulleys (108) are provided, both of which are fixedly sleeved on the end of the rotating roller (107); A transmission belt (109) is sleeved between two synchronous pulleys (108); A driving motor (110), wherein the output end of the driving motor (110) is fixedly connected to the end of the rotating roller (107); The rotating disk (111) is fixedly sleeved on the outer wall of the rotating roller (107) at equal distances; A plurality of driving rods (112) are provided and are fixedly connected to the outer wall of the rotating disk (111) in an annular shape and at equal intervals; A plurality of rubber balls (113) are provided, each of which is movably connected to the end of the driving rod (112).

4. A prefabricated concrete block preparation device according to claim 2, It is characterized in that The film clamping mechanism (200) comprises: A partition shell (201) is equidistantly disposed between the two chains (104); Discharge chutes (202) are arranged in the partition shell (201) at equal distances; Two cylinders (203) are provided and are symmetrically fixedly connected at the center position of the end of the partition shell (201). The cylinders (203) are slidably engaged with the U-shaped seat (105); Four damping shafts (204) are provided and are symmetrically rotatably connected to opposite side walls of the partition shell (201); Two folding surface clamping plates (205) are provided and are both rotatably connected between the two damping shafts (204); The elastic layer (206) is fixedly arranged on the side wall of the folding surface clamping plate (205).

5. A prefabricated concrete block preparation device according to claim 4, It is characterized in that The partition shell (201) is slidably embedded with a plurality of molds (207) at a medium distance, and two buffer springs (208) are symmetrically fixedly connected to the molds (207), and the ends of the buffer springs (208) are fixedly connected to the inside of the partition shell (201).

6. A prefabricated concrete block preparation device according to claim 4, It is characterized in that The recycling mechanism (300) comprises: The supporting chamber shells (301) are provided in three pieces and are slidably arranged at the bottom of the partition shell (201); The recovery tube (302) is fixedly connected to the end of the support chamber shell (301), and the recovery tube (302) is communicated with the interior of the support chamber shell (301); A second driving motor (303) is fixedly connected to the end of the recovery cylinder (302); The auger (304) is rotatably sleeved inside the recovery drum (302), and the end of the auger (304) is fixedly connected to the output end of the second driving motor (303); The top support plate (305) is fixedly connected to the bottom of the recovery cylinder (302).

7. A prefabricated concrete block preparation device according to claim 4, It is characterized in that The scraping mechanism (400) comprises: Two movable shovel plates (404) are provided and are slidably connected to the top of the partition shell (201); A bidirectional screw rod (403) is screwed and connected between two movable shovel plates (404); A servo motor (405), wherein the output end of the servo motor (405) is fixedly connected to the end of the bidirectional lead screw (403).

8. A prefabricated concrete block preparation device according to claim 7, It is characterized in that The scraping mechanism (400) comprises: Two support columns (401) are provided and are rotatably connected to both ends of the bidirectional screw rod (403); The limiting column (402) is fixedly connected between the two supporting columns (401) and is slidably embedded in the top end of the movable shovel plate (404).

9. A prefabricated concrete block preparation device according to claim 7, It is characterized in that Two abutting rods (508) are symmetrically fixedly connected to opposite side walls of the frame (504), and the ends of the abutting rods (508) abut against the ends of the folding surface clamping plates (205).

10. A prefabricated concrete block preparation device according to claim 9, It is characterized in that A storage plate (510) is provided on one side of the frame (504), a plastic film is carried on the storage plate (510), both ends of the storage plate (510) are fixedly connected to fixed frames (509), and a plurality of conveying rollers (511) are rotatably connected at equal distances between the two fixed frames (509).

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