A raw material grinding device for dry-mixed mortar production

Abstract

The utility model relates to the field of dry -mixed mortar processing device, especially use raw material grinding device for dry -mixed mortar production, including box, fixed mounting has screen cloth in the box, horizontal sliding installation has grinding block in the screen cloth, screen cloth both ends inboard all are equipped with push -board, push -board upper end fixed mounting has mounting block, horizontal fixed mounting has moving link on the mounting block, moving link passes through the horizontal sliding installation of elastic component on the box, the fixed mounting has magnet in the mounting block side, grinding block upper end fixed mounting has mounting plate, mounting plate both ends all are fixed mounting has metal block, the utility model discloses push -board can push raw material that the screen cloth end portion accumulated to the grinding area, make the raw material that originally unable to contact grinding block re -enter the grinding range, ensure that all areas of raw material in the screen cloth can be repeatedly extruded and ground by grinding block, and the product quality defect that the grinding is not fully caused is reduced greatly.

Description

Technical Field

[0001] This utility model relates to the field of dry mortar processing equipment, and in particular to a raw material grinding device for dry mortar production. Background Technology

[0002] Dry mortar refers to a granular or powdery material made by physically mixing aggregates, inorganic cementitious materials, and additives in a certain proportion after drying and screening. It is transported to the construction site in bagged or bulk form and can be used directly after being mixed with water. Grinding equipment is often used to grind the raw materials during production.

[0003] Chinese patent CN218308425U discloses a raw material grinding device for dry mortar production. The device uses a primary grinding device to initially grind the raw materials and a secondary grinding device to further grind the raw materials, thereby promoting thorough grinding and improving the processing quality of the product.

[0004] In the aforementioned patent literature, the grinding blocks reciprocate within a screen to achieve secondary grinding of raw materials. However, during the reciprocating motion of the grinding blocks, a small amount of raw material is pushed to both ends of the screen, preventing it from fully contacting and grinding with the grinding blocks. This results in a small amount of raw material not being fully ground, thus reducing the processing quality of the product. Utility Model Content

[0005] The purpose of this utility model is to solve the following shortcomings in the existing technology: during the reciprocating movement of the grinding block, a small amount of raw material will be pushed to both ends of the screen, making it unable to fully contact and grind with the grinding block, resulting in a small amount of raw material that cannot be fully ground, reducing the processing quality of the product. Therefore, a raw material grinding device for dry powder mortar production is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A raw material grinding device for dry mortar production includes a housing, a screen fixedly installed inside the housing, a grinding block horizontally slidably installed inside the screen, and a transmission component for driving the grinding block to reciprocate within the housing. Push plates are provided at both ends of the inner side of the screen. The sides of the push plates slide in contact with the inner wall of the screen. A support assembly for supporting the push plates is provided on the screen. An installation block is fixedly installed on the upper end of the push plate. A moving rod is horizontally fixedly installed on the installation block. The moving rod is horizontally slidably installed on the box body through an elastic component. A magnet is fixedly installed on the side of the installation block. An installation plate is fixedly installed on the upper end of the grinding block. Metal blocks are fixedly installed at both ends of the installation plate. The two metal blocks are on the same horizontal line as the two magnets.

[0007] Preferably, the screen has symmetrical moving grooves on both the front and rear sides, and the support assembly includes a moving block that is horizontally slidably installed in the moving groove and a support rod that is fixedly installed on the moving block. One end of the support rod is fixedly connected to the upper end of the push plate.

[0008] Preferably, the box body has movable holes on both the left and right sides, the movable rod is horizontally slidably installed in the movable holes, and the elastic component includes a return spring sleeved on the movable rod and a fixing block fixedly installed at one end of the movable rod. The two ends of the return spring are fixedly connected to the fixing block and the side wall of the box body, respectively.

[0009] Preferably, the return spring is in a compressed state, and the magnetic force between the metal block and the magnet is greater than the elastic force of the return spring.

[0010] Preferably, the transmission assembly includes a reciprocating lead screw horizontally rotatably mounted inside the housing, a drive block threaded onto the reciprocating lead screw, and a drive component for driving the reciprocating lead screw to rotate, wherein the drive block is fixedly connected to the grinding block.

[0011] Preferably, guide plates are symmetrically fixedly installed inside the box, and a rectangular opening is formed between the two guide plates. The rectangular opening is located directly above the screen. Vertical rods are symmetrically fixedly installed on the upper end of the grinding block. Protective plates with an isosceles triangle longitudinal section are fixedly installed on the upper end of the two vertical rods. The two ends of the protective plates are in contact with the sides of the two guide plates respectively.

[0012] The beneficial effects of this utility model are as follows: 1. When the transmission component drives the grinding block to move back and forth along the screen, as the grinding block approaches the push plate, the metal block and the magnet generate a magnetic attraction, which will pull the push plate to move synchronously with the grinding block. At this time, the push plate can push the raw material accumulated at the end of the screen to the grinding area, so that the raw material that could not originally contact the grinding block can re-enter the grinding range, ensuring that the raw material in all areas of the screen can be repeatedly squeezed and ground by the grinding block, greatly reducing product quality defects caused by insufficient grinding. 2. The guide plate installed above the screen can accurately guide the raw materials into the screen, while the protective plate can prevent the raw materials from accumulating on the top of the grinding block, ensuring that all raw materials can be fully ground. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a raw material grinding device for dry powder mortar production proposed in this utility model. Figure 2 This is a three-dimensional cross-sectional structural diagram of a raw material grinding device for dry powder mortar production proposed in this utility model; Figure 3 A three-dimensional structural diagram of the screen, grinding block, guide plate and transmission assembly; Figure 4 A three-dimensional structural diagram of the screen, grinding block, transmission assembly, push plate, and elastic assembly; Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle; Figure 6 for Figure 4 Enlarged view of the structure at point B in the middle.

[0014] In the diagram: 1. Box body, 2. Screen, 3. Grinding block, 4. Push plate, 5. Mounting block, 6. Moving rod, 7. Magnet, 8. Mounting plate, 9. Metal block, 10. Moving block, 11. Support rod, 12. Return spring, 13. Fixing block, 14. Reciprocating screw, 15. Drive block, 16. Guide plate, 17. Vertical rod, 18. Protective plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-5 A raw material grinding device for dry mortar production includes a housing 1, a screen 2 fixedly installed inside the housing 1, a grinding block 3 horizontally slidably installed inside the screen 2, a transmission component for driving the grinding block 3 to reciprocate inside the housing 1, push plates 4 at both ends of the inner side of the screen 2, the sides of the push plates 4 slidingly contacting the inner wall of the screen 2, a support component for supporting the push plates 4 on the screen 2, an mounting block 5 fixedly installed on the upper end of the push plate 4, a moving rod 6 horizontally fixedly installed on the mounting block 5, the moving rod 6 being horizontally slidably installed on the housing 1 through an elastic component, a magnet 7 fixedly installed on the side of the mounting block 5, an mounting plate 8 fixedly installed on the upper end of the grinding block 3, and metal blocks 9 fixedly installed at both ends of the mounting plate 8, the two metal blocks 9 being on the same horizontal line as the two magnets 7 respectively.

[0017] The housing 1 provides a closed installation and operating space for the entire grinding device, preventing raw materials from splashing during the grinding process. The screen 2 carries the raw materials to be ground and can also screen the qualified raw materials to the bottom of the housing 1, realizing the synchronous "grinding-screening". The grinding block 3 moves horizontally back and forth along the screen 2 under the drive of the transmission component, and grinds the raw materials through the squeezing action with the screen 2. The push plate 4 is used to push the raw materials accumulated at the end of the screen 2 and make them re-enter the grinding area. The support component provides horizontal sliding support for the push plate 4 to ensure that the push plate 4 moves smoothly. The mounting block 5 is the connecting carrier of the push plate 4, the moving rod 6, and the magnet 7, realizing the coordinated action of multiple components. The moving rod 6, in conjunction with the elastic component, provides the reset power for the push plate 4. The magnet 7 and the metal block 9 realize the linkage between the grinding block 3 and the push plate 4 through magnetic attraction. The metal block 9 and the magnet 7 are on the same horizontal line to ensure that they can be accurately attracted. The mounting plate 8 is used to fix the metal block 9 and connect the metal block 9 and the grinding block 3 into one body, so that the metal block 9 moves synchronously with the grinding block 3.

[0018] Reference Figure 6 The screen 2 has symmetrical moving grooves on both the front and rear sides. The support assembly includes a moving block 10 that is horizontally slidably installed in the moving groove and a support rod 11 that is fixedly installed on the moving block 10. One end of the support rod 11 is fixedly connected to the upper end of the push plate 4. The moving groove of the screen 2 provides a horizontal sliding track for the moving block 10, restricting the moving block 10 to move only along the length of the screen 2. The moving block 10 and the support rod 11 cooperate to connect the push plate 4 to the screen 2. One end of the support rod 11 fixes the push plate 4 and the other end fixes the moving block 10, so that the push plate 4 can slide along the moving groove with the moving block 10. This support structure can prevent the push plate 4 from tilting or getting stuck when pushing raw materials, ensuring that the push plate 4 is always in close contact with the inner wall of the screen 2, and improving the efficiency of pushing raw materials.

[0019] Reference Figure 2 The box body 1 has movable holes on both the left and right sides. The movable rod 6 is horizontally slidably installed in the movable holes. The elastic component includes a return spring 12 sleeved on the movable rod 6 and a fixing block 13 fixedly installed at one end of the movable rod 6. The two ends of the return spring 12 are fixedly connected to the fixing block 13 and the side wall of the box body 1, respectively. The return spring 12 is in a compressed state. The magnetic force between the metal block 9 and the magnet 7 is greater than the elastic force of the return spring 12.

[0020] The movable hole of the housing 1 provides a horizontal sliding channel for the movable rod 6, ensuring that the movable rod 6 moves only in the horizontal direction. In the elastic component, the fixing block 13 is used to fix one end of the return spring 12, so that the return spring 12 is always in a compressed state. The compressed return spring 12 has a tendency to return to its original length. The movable rod 6 can be pulled to the outside of the housing 1 by the fixing block 13, thereby driving the push plate 4 to return to one end of the screen 2. The magnetic force of the metal block 9 and the magnet 7 is greater than the elastic force of the return spring 12, ensuring that when the grinding block 3 is close to the push plate 4, the magnetic attraction force can overcome the elastic force of the return spring 12, pulling the push plate 4 to move synchronously with the grinding block 3, realizing the material push.

[0021] Reference Figure 3 The transmission assembly includes a reciprocating lead screw 14 horizontally rotatably mounted inside the housing 1, a drive block 15 threaded onto the reciprocating lead screw 14, and a drive component for driving the reciprocating lead screw 14 to rotate. The drive block 15 is fixedly connected to the grinding block 3. The core function of the transmission assembly is to provide power for the reciprocating movement of the grinding block 3. The drive component (the stepper motor, drive wheel, driven wheel, and belt disclosed in the patent with publication number CN218308425U are prior art and will not be described in detail again) can drive the reciprocating lead screw 14 to rotate horizontally. The reciprocating thread on the surface of the reciprocating lead screw 14 engages with the internal thread of the drive block 15, converting the rotational motion of the reciprocating lead screw 14 into the horizontal reciprocating linear motion of the drive block 15. The drive block 15 is fixedly connected to the grinding block 3 and can drive the grinding block 3 to move synchronously back and forth along the screen 2, thereby realizing continuous grinding of the raw materials.

[0022] Inside the housing 1, guide plates 16 are symmetrically fixedly installed, forming a rectangular opening between the two guide plates 16. The rectangular opening is located directly above the screen 2. Vertical rods 17 are symmetrically fixedly installed on the upper end of the grinding block 3. Protective plates 18 with an isosceles triangular longitudinal section are fixedly installed on the upper end of the two vertical rods 17. The two ends of the protective plates 18 contact the sides of the two guide plates 16 respectively. The guide plates 16 are symmetrically arranged inside the housing 1. Their inclined structure can guide the raw materials fed in from the outside to the rectangular opening between the two guide plates 16. The rectangular opening is directly above the screen 2, ensuring that the raw materials fall accurately into the grinding area of ​​the screen 2 and avoiding the raw materials from scattering outside the screen 2 and causing waste. The vertical rods 17 are used to connect the protective plates 18 to the grinding block 3, so that the protective plates 18 move synchronously with the grinding block 3. The protective plates 18 have an isosceles triangular longitudinal section, and their two ends contact the sides of the guide plates 16, which can prevent the raw materials from accumulating on the upper end of the grinding block 3 and ensure that all raw materials can be fully ground.

[0023] In this invention, the raw material to be ground is fed into the top of the box 1. The raw material is guided by the guide plate 16 and falls into the screen 2 through the rectangular opening. The drive component of the transmission assembly is activated, which drives the reciprocating screw 14 to rotate. The reciprocating screw 14 drives the grinding block 3 to move horizontally back and forth along the screen 2 through the drive block 15. The grinding block 3 and the screen 2 squeeze the raw material to realize the grinding operation. The qualified raw material falls into the bottom of the box 1 through the screen 2 for collection.

[0024] When the grinding block 3 moves toward one end of the screen 2, the mounting plate 8 drives the metal block 9 to synchronously approach the magnet 7 of the push plate 4 at that end. When the metal block 9 contacts the magnet 7, the magnetic attraction force overcomes the elastic force of the return spring 12, pulling the push plate 4 to move synchronously with the grinding block 3. The push plate 4 pushes the raw material accumulated at the end of the screen 2 toward the grinding area until the moving block 10 moves to the other end of the moving groove and can no longer move. Overcoming the magnetic force between the metal block 9 and the magnet 7, the metal block 9 separates from the magnet 7. Under the elastic force of the return spring 12, the moving rod 6 is reset by the fixed block 13, driving the push plate 4 back to the end of the screen 2 to prepare for the next push. This allows the raw material that could not originally contact the grinding block 3 to re-enter the grinding range, ensuring that the raw material in the area of ​​the screen 2 can be repeatedly squeezed and ground by the grinding block 3, greatly reducing product quality defects caused by insufficient grinding.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A raw material grinding device for dry powder mortar production, comprising a housing (1), characterized in that, A screen (2) is fixedly installed inside the box (1), and a grinding block (3) is horizontally slidably installed inside the screen (2). A transmission component for driving the grinding block (3) to move back and forth is provided inside the box (1). Push plates (4) are provided at both ends of the inner side of the screen (2). The side of the push plate (4) slides in contact with the inner wall of the screen (2). The screen (2) is provided with a support component for supporting the push plate (4). An installation block (5) is fixedly installed on the upper end of the push plate (4). A moving rod (6) is fixedly installed horizontally on the installation block (5). The moving rod (6) is horizontally slidably installed on the box (1) through an elastic component. A magnet (7) is fixedly installed on the side of the installation block (5). An installation plate (8) is fixedly installed on the upper end of the grinding block (3). Metal blocks (9) are fixedly installed at both ends of the installation plate (8). The two metal blocks (9) are respectively on the same horizontal line as the two magnets (7).

2. The raw material grinding device for dry powder mortar production according to claim 1, characterized in that, The screen (2) has symmetrical moving grooves on both the front and rear sides. The support assembly includes a moving block (10) that is horizontally slidably installed in the moving groove and a support rod (11) that is fixedly installed on the moving block (10). One end of the support rod (11) is fixedly connected to the upper end of the push plate (4).

3. The raw material grinding device for dry powder mortar production according to claim 1, characterized in that, The box (1) has movable holes on both the left and right sides. The movable rod (6) is horizontally slidably installed in the movable hole. The elastic component includes a return spring (12) sleeved on the movable rod (6) and a fixing block (13) fixedly installed at one end of the movable rod (6). The two ends of the return spring (12) are fixedly connected to the fixing block (13) and the side wall of the box (1), respectively.

4. The raw material grinding device for dry powder mortar production according to claim 3, characterized in that, The return spring (12) is in a compressed state, and the magnetic force between the metal block (9) and the magnet (7) is greater than the elastic force of the return spring (12).

5. The raw material grinding device for dry powder mortar production according to claim 1, characterized in that, The transmission assembly includes a reciprocating lead screw (14) that is horizontally rotatably installed in the housing (1), a drive block (15) threaded onto the reciprocating lead screw (14), and a drive component for driving the reciprocating lead screw (14) to rotate. The drive block (15) is fixedly connected to the grinding block (3).

6. The raw material grinding device for dry powder mortar production according to claim 1, characterized in that, Inside the box (1), guide plates (16) are symmetrically fixedly installed. A rectangular opening is formed between the two guide plates (16). The rectangular opening is located directly above the screen (2). Vertical rods (17) are symmetrically fixedly installed on the upper end of the grinding block (3). Protective plates (18) with an isosceles triangle longitudinal section are fixedly installed on the upper end of the two vertical rods (17). The two ends of the protective plates (18) are in contact with the sides of the two guide plates (16).

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