Wax film sand spraying device

Abstract

The utility model discloses a wax film sand spraying device which comprises a sand spraying chamber and a trapezoid recycling box installed at the position of an opening in the bottom end of the sand spraying chamber, a door plate is installed on one side of the surface of the sand spraying chamber through hinges, and a sand outlet box is installed at the top of the sand spraying chamber. An auger lifting mechanism used for feeding sand in the trapezoid recycling box into the sand outlet box is installed on the outer wall of one side of the trapezoid recycling box, and a flow guide channel used for receiving the sand from the sand spraying chamber and enabling the sand to obliquely slide downwards into the auger lifting mechanism is installed at the bottom of the trapezoid recycling box. Through cooperation of the sand outlet box, the sand spraying chamber, the driven rotary type transposition sand spraying module, the trapezoidal recycling box, the flow guide channel, the auger lifting mechanism and other components, it is ensured that sand can evenly cover the surface of a wax mold, and unused sand can circularly participate in the sand spraying procedure of the device again.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical fields, specifically is a wax film sanding device. BACKGROUND

[0002] The wax film sanding on the surface of wax mold plays a crucial role in wax mold precision casting, its main role is reflected in improving the surface quality of castings, enhancing the strength of mold shell, improving the casting precision and improving the production efficiency, the sanding capacity of wax film directly affects the adhesion effect of sand, good sanding performance can ensure the delicacy of sand mold, thereby reducing the defects on the surface of castings, and the structure and principle of wax mold sanding device is the key to realize the sanding effect of wax film. The device usually includes a hopper, a sanding device, a wax mold rotating mechanism and a control system and other main parts. The hopper is responsible for storing and supplying sand, usually using a belt conveyor to lift the sand to a certain height. The sanding device uniformly falls sand on the surface of the wax mold by spraying or gravity sanding. The wax mold rotating mechanism rotates the wax mold during sanding to ensure that the sand covers the surface evenly, and adjusts the sand supply, sanding time and wax mold speed and other parameters according to production requirements to achieve the best sanding effect;

[0003] The wax mold sanding device disclosed in the authorized announcement No. CN213079973U includes a machine body, a rolling assembly fixedly installed inside the machine body, a material pipe fixedly connected to the top of the rolling assembly, an external hopper fixedly installed on the top of the machine body, a rack fixedly installed on the back of the machine body, a motor assembly fixedly installed on the top of the rack, a servo motor fixedly installed on the right side of the machine body, a transmission rod fixedly connected to the left side of the servo motor, a driving gear movably installed on the outside of the transmission rod, and a driven gear meshed with the outside of the driving gear. The rotating sanding disc driven by the rotating rod uniformly throws the sand through the filter screen, and finally throws the sand out of the sanding process through the sand outlet opened at the bottom of the machine body. However, the sand not adhered to the wax mold is directly discharged outside the machine body and collected by the recycling box during use, which causes the sand to be wasted and cannot be recycled. The sand needs to be recharged by the staff every time, which consumes additional sand. Since the recycling of the unattached sand requires manual intervention, the staff needs to check the recycling box regularly and recharge the sand, which will distract the staff's time and energy, affecting the sanding and sanding efficiency of the wax mold. UTILITY MODEL CONTENTS

[0004] The utility model discloses a wax film sanding device, and sand in the sand box falls from high point to down, directly is drenched on the driven rotary type transposition sanding module that rotates in the sanding chamber, makes sand and wax film on the surface of wax mould contact, realizes wax mould sanding, and the sand that is not adhered enters the guide channel of trapezoidal recovery tank and enters the auger lifting mechanism, and the auger lifting mechanism re -elevates this part of sand wheel and sends into to the sand box of continuing to use of sand, to solve the problem of the above -mentioned background art.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a wax film sanding device, including sanding chamber and the trapezoidal recovery tank of sanding chamber bottom end opening position installation, the one side of sanding chamber surface is equipped with the door board through the hinge, the top of sanding chamber is equipped with the sand box, the one side outer wall of trapezoidal recovery tank is equipped with the auger lifting mechanism for sending sand in trapezoidal recovery tank into the sand box, the bottom of trapezoidal recovery tank is equipped with the guide channel for receiving sand from sanding chamber and making sand slanting downward into the inside of auger lifting mechanism, the inside of sanding chamber is equipped with driven rotary type transposition sanding module for supporting wax mould and making wax mould rotate, the belt pulley drive structure for keeping power connection is installed between auger lifting mechanism, driven rotary type transposition sanding module, the one side of sanding chamber is provided with the reduction motor for driving auger lifting mechanism to work.

[0006] Preferably, the auger lifting mechanism includes a vertical hollow pipe provided on the outer wall of one side of the sanding chamber, an auger roller rotatably installed in the vertical hollow pipe, and an inlet pipe and an outlet pipe provided on the outer wall of one side of the vertical hollow pipe, the reduction motor is installed at the bottom end of the vertical hollow pipe, the output shaft of the reduction motor is fixedly connected to the bottom end of the auger roller, and the top end of the auger roller penetrates to the outside of the vertical hollow pipe and drives the driven rotary type transposition sanding module to work through the belt pulley drive structure.

[0007] Preferably, one end of the inlet pipe extends to the inside of the trapezoidal recovery tank, and one end of the outlet pipe extends to the inside of the sand box.

[0008] Preferably, the sand box is made of stainless steel components, and a plurality of discharge holes for discharging sand are arranged at the bottom end of the sand box.

[0009] Preferably, the driven rotary type transposition sanding module includes bearing seats fixed on the outer walls of both sides of the sanding chamber, a horizontal shaft rotatably installed between the two bearing seats, disc plates fixed at both ends of the surface of the horizontal shaft, and a base table installed between the outer walls of the opposite sides of the two disc plates, and a lead screw positioning structure for positioning the wax mould is installed on the outer wall of one side of one of the disc plates.

[0010] Preferably, the driven rotary transposition dousing module further comprises a vertical shaft rotatably mounted on one side of the outer wall of the dousing chamber and a worm gear transmission structure mounted at the bottom end of the vertical shaft for driving the rotation of the horizontal shaft, and the pulley driving structure is used for connecting the vertical shaft and the auger roller.

[0011] Preferably, an arc-shaped material blocking disc is fixed inside the dousing chamber below the two blocking discs.

[0012] Compared with the prior art, the wax film dousing device has the beneficial effects that: the sand material can be uniformly covered on the surface of the wax mold through the cooperation of the sand outlet box, the dousing chamber, the driven rotary transposition dousing module, the trapezoidal recycling box, the flow guide channel and the auger lifting mechanism, and the unused sand material can be recycled and reused in the sand dousing process; the sand material that is not adhered can smoothly enter the auger lifting mechanism through the flow guide channel of the trapezoidal recycling box, so that the sand material is not discarded but can be reused in the sand dousing process, the recycling mode significantly improves the utilization rate of the sand material and reduces the production cost; the driven rotary transposition dousing module can complete the distribution of the sand material in a short time, so that the surface of the wax mold is fully covered, the efficient sand dousing mode can shorten the production cycle and improve the overall production efficiency; and the staff no longer needs to manually clean the sand material that is not adhered or re-feed, so that more energy can be concentrated on other important production links. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the utility model Figure 1 ;

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the utility model Figure 2 ;

[0017] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0018] Figure 6 It is a three-dimensional structural schematic diagram of the trapezoidal recycling box of the utility model.

[0019] In the figure: 1, sand shower room; 2, door plate; 3, auger lifting mechanism; 4, speed reducer motor; 5, trapezoidal recovery box; 501, flow guide channel; 6, driven rotary type transposition sand shower module; 601, bearing seat; 602, horizontal shaft; 603, baffle disc; 604, bottom table; 605, screw rod positioning structure; 606, vertical shaft; 607, worm gear transmission structure; 7, pulley driving structure; 8, arc-shaped material blocking disc; 9, sand outlet box. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] Please refer to Figures 1-6 The utility model provides an embodiment: a wax film sand shower device, including sand shower room 1 and the trapezoidal recovery box 5 of sand shower room 1 bottom end opening position installation, sand shower room 1 surface one side is equipped with the door plate 2 through the hinge, sand shower room 1 top is equipped with sand outlet box 9, sand outlet box 9 adopts the component made of stainless steel material, and the bottom end of sand outlet box 9 is provided with a plurality of discharge holes for sand material falling out,

[0022] One side outer wall of trapezoidal recovery box 5 is equipped with auger lifting mechanism 3 for sending sand material in trapezoidal recovery box 5 into sand outlet box 9, and the bottom of trapezoidal recovery box 5 is equipped with flow guide channel 501 for receiving sand material from sand shower room 1 and making sand material inclined and slide downward into the inside of auger lifting mechanism 3, and the inside of sand shower room 1 is equipped with driven rotary type transposition sand shower module 6 for supporting wax mould and making wax mould rotate, and pulley driving structure 7 for keeping power connection is installed between auger lifting mechanism 3 and driven rotary type transposition sand shower module 6, and one side of sand shower room 1 is provided with speed reducer motor 4 for driving auger lifting mechanism 3 to work,

[0023] Staff can install motor controller on the outer wall of sand shower room 1 for controlling the rotating direction and speed of speed reducer motor 4 to control the flow of sand material and sand shower time,

[0024] Auger lifting mechanism 3 includes vertical hollow material pipe arranged on one side outer wall of sand shower room 1, auger roller rotatably installed in the inside of vertical hollow material pipe, and feed pipe and discharge pipe arranged on one side outer wall of vertical hollow material pipe, speed reducer motor 4 is installed at the bottom end of vertical hollow material pipe, the output shaft of speed reducer motor 4 is fixedly connected with the bottom end of auger roller, the top end of auger roller penetrates to the outside of vertical hollow material pipe and drives driven rotary type transposition sand shower module 6 to work through pulley driving structure 7, one end of feed pipe extends to the inside of trapezoidal recovery box 5, and one end of discharge pipe extends to the inside of sand outlet box 9.

[0025] The speed reducer motor 4 drives the auger roller in the vertical hollow material pipe to rotate, and the auger roller actively transports the sand material from the trapezoidal recycling box 5 and the flow guide 501 upward, and makes the sand material re-enter the sand box 9. Since the flow guide 501 is in an inclined state, the sand material can move to the direction of the feed inlet of the vertical hollow material pipe under the action of gravity, facilitating the material lifting operation.

[0026] In example two, on the basis of example one, Figure 2 , Figure 5 and Figure 6 are given, the auger lifting mechanism 3 and the driven rotary type position changing sand pouring module 6 share the rotary power from the speed reducer motor 4, which has a simple structure, greatly reduces the structure cost and use cost of the device, and the driven rotary type position changing sand pouring module 6 includes a bearing seat 601 fixed on the outer wall of the sand pouring chamber 1 on both sides, a horizontal shaft 602 rotatably installed between the two bearing seats 601, a baffle disc 603 fixed on the surface of the horizontal shaft 602 at both ends, and a bottom platform 604 installed between the outer walls on the opposite sides of the two baffle discs 603. One side of one of the baffle discs 603 is provided with a lead screw positioning structure 605 for positioning the wax mold. The worker places the wax mold to be poured with sand on the bottom platform 604, and uses the lead screw positioning structure 605 to fix the wax mold, so as to avoid the phenomenon of falling off of the wax mold in the subsequent rotation process.

[0027] The driven rotary type position changing sand pouring module 6 further includes a vertical shaft 606 rotatably installed on one side of the outer wall of the sand pouring chamber 1 and a worm gear transmission structure 607 installed at the bottom end of the vertical shaft 606 for driving the horizontal shaft 602 to rotate, and the belt wheel driving structure 7 is used to connect the vertical shaft 606 and the auger roller.

[0028] During the rotation of the auger roller, the vertical shaft 606 is driven to rotate by the belt wheel driving structure 7, and then the horizontal shaft 602 and the baffle disc 603 are driven to rotate by the worm gear transmission structure 607. At this time, the wax mold and the bottom platform 604 rotate around the horizontal shaft 602, so that the wax mold is in contact with the sand material.

[0029] The sand pouring chamber 1 inside the two baffle discs 603 is fixed with an arc-shaped material blocking disc 8. A part of the sand material will be retained on the arc-shaped material blocking disc 8, and the wax mold in the rotation process can also contact the sand material retained on the arc-shaped material blocking disc 8, so that the sand material is re-stuck on the wax film.

[0030] The embodiment of the present application is used, first, the staff opens the door plate 2, and pours the prepared sand through the door plate 2 into the sand chamber 1 and the trapezoidal recycling box 5, and fixes the wax mold to be treated by sanding and sticking sand in the driven rotary transposition sanding module 6, after the equipment is ready, the staff starts the reduction motor 4 to work, at this time, the rotary power of the reduction motor 4 is first transmitted to the auger lifting mechanism 3, since the feeding port of the auger lifting mechanism 3 is connected with the lowest point of the guide channel 501, the sand in the guide channel 501 enters the auger lifting mechanism 3, so that the auger lifting mechanism 3 lifts the sand upward and sends it into the sand outlet box 9, under the action of gravity, the sand quickly falls into the sanding chamber 1 and contacts the driven rotary transposition sanding module 6 and the fixed wax mold, in the process, the driven rotary transposition sanding module 6 receives the rotary power from the auger lifting mechanism 3 and the reduction motor 4 through the pulley driving structure 7, so that the wax film at different positions of the wax mold can contact the sand, the staff needs to observe the rotation of the driven rotary transposition sanding module 6 and the wax mold, ensures its normal operation, and adjusts the rotation speed according to the need, so as to achieve the best sanding effect, after the sanding process, the sand not adhered will enter the guide channel 501 of the trapezoidal recycling box 5 through the arc-shaped blocking disc 8 and flow into the auger lifting mechanism 3 again, the auger lifting mechanism 3 lifts the sand not adhered and sends it back to the sand outlet box 9, so as to be used again.

Claims

1. A wax film draper, characterized by: The sand shower room (1) and the trapezoidal recovery box (5) installed at the opening position of the bottom end of the sand shower room (1), one side of the surface of the sand shower room (1) is provided with a door plate (2) installed by a hinge, the top of the sand shower room (1) is provided with a sand outlet box (9), one side of the outer wall of the trapezoidal recovery box (5) is provided with a screw conveyor lifting mechanism (3) for sending sand in the trapezoidal recovery box (5) into the sand outlet box (9), the bottom of the trapezoidal recovery box (5) is provided with a guide channel (501) for receiving sand from the sand shower room (1) and making the sand slide downwardly and obliquely into the screw conveyor lifting mechanism (3), the inside of the sand shower room (1) is provided with a driven rotary type position changing sand shower module (6) for supporting the wax mold and making the wax mold rotate, the screw conveyor lifting mechanism (3) and the driven rotary type position changing sand shower module (6) are provided with a pulley driving structure (7) for keeping power connection, one side of the sand shower room (1) is provided with a speed reducer motor (4) for driving the screw conveyor lifting mechanism (3) to work.

2. A wax film fluidising device according to claim 1, wherein: The screw conveyor lifting mechanism (3) comprises a vertical hollow pipe arranged on one side of the outer wall of the sand shower room (1), a screw conveyor roller rotatably arranged in the vertical hollow pipe, and an inlet pipe and an outlet pipe arranged on one side of the outer wall of the vertical hollow pipe, the speed reducer motor (4) is arranged at the bottom end of the vertical hollow pipe, the output shaft of the speed reducer motor (4) is fixedly connected with the bottom end of the screw conveyor roller, and the top end of the screw conveyor roller penetrates to the outside of the vertical hollow pipe and drives the driven rotary type position changing sand shower module (6) to work through the pulley driving structure (7).

3. A wax film fluidising device according to claim 2, wherein: One end of the inlet pipe extends to the inside of the trapezoidal recovery box (5), and one end of the outlet pipe extends to the inside of the sand outlet box (9).

4. A wax film fluidising device according to claim 3, wherein: The sand outlet box (9) is made of a component made of stainless steel, and a plurality of discharge holes for discharging sand are arranged at the bottom end of the sand outlet box (9).

5. A wax film fluidizing device as defined in claim 2, wherein: The driven rotary type position changing sand shower module (6) comprises bearing seats (601) fixed on the outer walls of the two sides of the sand shower room (1), a horizontal shaft (602) rotatably arranged between the two bearing seats (601), disc stoppers (603) fixed on the surface of the horizontal shaft (602) at both ends, and a bottom table (604) arranged between the outer walls of the opposite sides of the two disc stoppers (603), and a lead screw positioning structure (605) is arranged on one side of the outer wall of one of the disc stoppers (603) for positioning the wax mold.

6. A wax film fluidising device according to claim 5, wherein: The driven rotary type position changing sand shower module (6) further comprises a vertical shaft (606) rotatably arranged on one side of the outer wall of the sand shower room (1) and a worm gear transmission structure (607) arranged at the bottom end of the vertical shaft (606) for driving the horizontal shaft (602) to rotate, and the pulley driving structure (7) is used for connecting the vertical shaft (606) and the screw conveyor roller.

7. A wax film fluidising device according to claim 6, wherein: Arc-shaped material blocking discs (8) are fixed in the inside of the sand shower room (1) below the two disc stoppers (603).

Images