Trolley for air drying of blind holes for manufacturing formwork

By designing a drying trolley with a spiral vortex airflow, the problem of uneven drying of blind holes in the mold shell was solved, achieving efficient drying of blind holes with curved shapes and improving production efficiency.

CN224266760UActive Publication Date: 2026-05-22HENAN TUOZHU IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN TUOZHU IND CO LTD
Filing Date
2025-06-24
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

In the existing technology, the airflow velocity of the blind hole drying device for mold shells decreases when it encounters a bend, resulting in incomplete drying and affecting production efficiency.

Method used

A drying trolley with a speed-regulating structure was designed. It uses a spiral vortex airflow to increase the airflow speed and a clamping mechanism to fix the mold shell, ensuring that the airflow flows evenly in the curved blind hole and increasing the contact area between the air and the inner wall of the blind hole.

Benefits of technology

It improved the drying speed and production efficiency inside the blind holes of the mold shell, solved the problem of uneven drying, and shortened the production time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mold shell blind hole air drying, in particular to a trolley for manufacturing mold shell blind hole air drying, which comprises a moving frame, a clamping mechanism arranged above the moving frame, and an air drying mechanism used for air drying of workpiece blind holes and located below the moving frame. A speed adjusting structure used for increasing the flow speed when the blind hole of the workpiece is air-dried is arranged above the air blowing pipe. The device has the beneficial effects that air is supplied to the interior of the blind hole of the workpiece through the air drying mechanism, when the blind hole is in a curve shape, airflow is changed into spiral vortex airflow through the speed adjusting structure, air is driven to enter the interior of the blind hole in a vortex flowing mode, the air speed when air is supplied to the blind hole is increased, the flowing speed of the air is increased, and the work efficiency is improved. The contact area between air and the inner wall of the blind hole is increased, the air drying time in the blind hole of the workpiece is shortened, and the workpiece production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of air drying technology for blind holes in mold shells, and in particular to a trolley for air drying blind holes in mold shells. Background Technology

[0002] During the mold shell production process, there will be blind holes of various sizes on the surface of the mold shell. After the mold shell is completed, there will be residual liquid or impurities inside the blind holes on the surface of the mold shell. Therefore, a corresponding drying device is needed to clean and dry the liquid and impurities inside the blind holes of the mold shell.

[0003] In existing technologies, when drying blind holes in mold shells, the drying device blows air into the blind holes of the mold shell. This is often used to dry blind holes that are straight. However, when the blind holes are curved, the airflow velocity blown into the blind holes may be greatly reduced when it encounters the bend. The deeper areas of the blind holes may experience incomplete drying, resulting in uneven drying inside the blind holes. This greatly increases the drying time of the blind holes, increases the mold shell production time, and reduces the efficiency of mold shell production. Utility Model Content

[0004] The purpose of this invention is to provide a trolley for drying blind holes in mold shells in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A trolley for drying blind holes in mold shells includes a movable frame, a clamping mechanism above the movable frame, and a drying mechanism for drying blind holes in workpieces, the drying mechanism being located below the movable frame.

[0007] The air drying mechanism includes a base frame at the bottom of the movable frame, mounting blocks fixed on both sides below the base frame, an air supply pipe installed between the two mounting blocks, a blower installed at the air inlet of the air supply pipe, a mounting plate installed between the blower and the movable frame, multiple mounting sleeves fixed at the upper end of the air supply pipe, a blowing pipe installed at the upper end of the mounting sleeves, the blowing pipe and the mounting sleeves connected by bolts, and a speed adjustment structure above the blowing pipe for increasing the flow rate when air drying blind holes of the workpiece.

[0008] Preferred: The speed regulating structure includes a connecting frame set above the blower pipe, the connecting frame being fixedly connected to the movable frame, slide rails being fixed on both sides above the connecting frame, a sliding plate being slidably installed between the two slide rails, multiple air outlet slots being opened on the surface of the sliding plate, the upper end of the blower pipe being connected to the lower end of the air outlet slot, a base being installed at the upper end of the air outlet slot, the sliding plate being connected to the base by bolts, an air outlet sleeve being installed at the upper end of the base, the air outlet sleeve being threadedly connected to the base, and multiple spiral guide slots being opened around the inner wall of the air outlet sleeve.

[0009] Preferably, the clamping mechanism includes a top frame at the top of the movable frame. Two sets of fixed plates are symmetrically arranged in the front-back direction on the upper end of the top frame, and each set has two fixed plates. The two fixed plates in each set are symmetrical in front and back. A bidirectional lead screw is rotatably installed between the two fixed plates in one set, and a slide rod is fixed between the two fixed plates in the other set. Two clamping plates are symmetrically installed between the slide rod and the bidirectional lead screw. The clamping plates are slidably connected to the slide rod and threadedly connected to the bidirectional lead screw. A clamping motor is installed at the rotating end of the bidirectional lead screw, and the output end of the clamping motor is fixed to the rotating end of the bidirectional lead screw through a coupling. A mold shell body is installed between the two clamping plates.

[0010] Preferably, the air outlet slot is a cone shape with the smaller end facing upwards.

[0011] Preferred option: A filter cartridge is installed inside the air supply duct.

[0012] Preferably, multiple heating rods are installed around the filter cartridge and the air supply duct.

[0013] Preferably, the clamping plate is made of rubber, and a handle is fixed to the front end of the sliding plate.

[0014] Compared with existing technologies, the beneficial effects are as follows:

[0015] The air-drying mechanism delivers air into the blind hole of the workpiece. When the blind hole is curved, the speed-regulating structure changes the airflow into a spiral vortex, driving the air into the blind hole in a vortex flow. This increases the air speed when delivering air into the blind hole, thereby increasing the airflow velocity and the contact area between the air and the inner wall of the blind hole. This accelerates the drying time inside the blind hole and improves the efficiency of workpiece production. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a spatial perspective view of a trolley for manufacturing blind hole air drying mold shells as described in this utility model;

[0018] Figure 2 This is a cross-sectional view of the internal structure of the air outlet sleeve of a trolley for making blind hole air drying mold shells, as described in this utility model.

[0019] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the clamping mechanism of a trolley for drying blind holes in mold shells as described in this utility model;

[0021] Figure 5 This is a cross-sectional view of the internal structure of the air supply pipe of a trolley for making blind holes in mold shells, as described in this utility model.

[0022] The annotations in the attached figures are explained as follows:

[0023] 100. Movable frame; 201. Base frame; 202. Air supply duct; 203. Mounting plate; 204. Blower; 205. Mounting block; 206. Filter cartridge; 207. Heating rod; 208. Mounting sleeve; 209. Air blowing duct; 210. Connecting frame; 211. Slide rail; 212. Sliding plate; 213. Air outlet duct; 214. Base; 215. Air outlet sleeve; 216. Spiral guide duct; 301. Top frame; 302. Fixing plate; 303. Two-way lead screw; 304. Slide rod; 305. Clamping motor; 306. Clamping plate; 307. Mold shell body. Detailed Implementation

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-5 As shown, a trolley for drying blind holes in mold shells includes a movable frame 100, a clamping mechanism for clamping and fixing workpieces (the clamping mechanism is located above the movable frame 100), and a drying mechanism for drying the blind holes in the workpieces (the drying mechanism is located below the movable frame 100).

[0027] In this embodiment: the air drying mechanism includes a bottom frame 201 set at the bottom of the movable frame 100, mounting blocks 205 are fixed on both sides below the bottom frame 201, an air supply pipe 202 is installed between the two mounting blocks 205, a blower 204 is installed at the air inlet end of the air supply pipe 202, an mounting plate 203 is set between the blower 204 and the movable frame 100, multiple mounting sleeves 208 are fixed at the upper end of the air supply pipe 202, a blowing pipe 209 is set at the upper end of the mounting sleeves 208, the blowing pipe 209 is a telescopic flexible hose, the blowing pipe 209 is connected to the mounting sleeves 208 by bolts, a filter cartridge 206 is installed inside the air supply pipe 202, multiple heating rods 207 are installed around the filter cartridge 206 and the air supply pipe 202, and a speed adjustment structure is provided above the blowing pipe 209 to increase the flow rate when air drying blind holes of the workpiece.

[0028] The speed control structure includes a connecting frame 210 positioned above the blower duct 209. The connecting frame 210 is fixedly connected to the movable frame 100. Slide rails 211 are fixed on both sides of the upper part of the connecting frame 210. A sliding plate 212 is slidably installed between the two slide rails 211. A handle is fixed to the front end of the sliding plate 212. Multiple air outlet slots 213 are formed on the surface of the sliding plate 212. Each air outlet slot 213 is tapered with its smaller end facing upwards. The upper end of the blower duct 209 is connected to the lower end of the air outlet slot 213. A base 214 is installed on the upper end of the air outlet slot 213. The sliding plate 212 is connected to the base 214 by bolts. An air outlet sleeve 215 is installed at the upper end of the 14. The air outlet sleeve 215 is threadedly connected to the base 214. Multiple spiral guide grooves 216 are arranged around the inner wall of the air outlet sleeve 215. The air drying mechanism delivers air to the inside of the blind hole of the workpiece. When the blind hole is curved, the speed regulation structure changes the airflow into a spiral vortex airflow, driving the air to enter the blind hole in the form of vortex flow, thereby increasing the wind speed when delivering air to the blind hole, increasing the air flow speed, increasing the contact area between the air and the inner wall of the blind hole, accelerating the drying time inside the blind hole of the workpiece, and improving the efficiency of workpiece production.

[0029] In this embodiment: the clamping mechanism includes a top frame 301 disposed at the top of the movable frame 100. Two sets of fixed plates 302 are symmetrically arranged in the front-back direction on the upper end of the top frame 301, and each set has two fixed plates 302. The two fixed plates 302 in each set are symmetrical in front and back. A bidirectional lead screw 303 is rotatably installed between the two fixed plates 302 in one set, and a slide rod 304 is fixed between the two fixed plates 302 in the other set. Two clamping plates 306 are symmetrical in front and back installed between the slide rod 304 and the bidirectional lead screw 303. The clamping plates 306 are slidably connected to the slide rod 304 and threadedly connected to the bidirectional lead screw 303. A clamping motor 305 is installed at the rotating end of the bidirectional lead screw 303. The output end of the clamping motor 305 is fixed to the rotating end of the bidirectional lead screw 303 through a coupling. A mold body 307 is installed between the two clamping plates 306. The clamping plates 306 are made of rubber.

[0030] Working principle: First, move the moving frame 100 to the area to be worked, then place the mold shell body 307 above the top frame 301, start the clamping motor 305 to drive the bidirectional lead screw 303 to rotate, drive the two clamping plates 306 to move towards each other to clamp and fix the middle mold shell body 307, then insert the sliding plate 212 between the two slide rails 211, corresponding to the position of the blind hole of the mold shell body 307, and install multiple bases 214 on the surface of the sliding plate 212 with bolts, so that the bases 214, the air outlet slot 213 and the blind hole of the mold shell body 307 are on the same axis.

[0031] Then, install the air outlet sleeve 215 on the upper end of the base 214, so that the upper end of the air outlet sleeve 215 fits with the lower end of the blind hole of the mold body 307. Then, twist the multiple air blowing pipes 209 to the lower end of the air outlet groove 213, so that the upper end of the air blowing pipe 209 fits with the lower end of the air outlet groove 213. Then, start the multiple heating rods 207 inside the air supply pipe 202 to increase the temperature inside the air supply pipe 202. Then, start the blower 204 to draw air into the air supply pipe 202, and use the filter cartridge 206 inside the air supply pipe 202 to filter impurities in the air.

[0032] Then, the airflow is blown into the air outlet groove 213 by the air blower 209. The shape of the air outlet groove 213 itself initially increases the airflow velocity. Then, it continues to flow into the air outlet sleeve 215 through the base 214. The multiple spiral guide grooves 216 on the inner wall of the air outlet sleeve 215 can effectively change the airflow into a spiral vortex airflow, driving the air to enter the blind hole in the form of vortex flow, thereby increasing the wind speed when supplying air to the blind hole, increasing the air flow speed, increasing the contact area between the air and the inner wall of the blind hole, accelerating the drying time inside the blind hole of the workpiece, and improving the efficiency of workpiece production, so as to adapt to the drying operation of the blind hole with curved shape.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A trolley for air-drying blind holes in mold shells, comprising a movable frame (100), wherein a clamping mechanism is provided above the movable frame (100), characterized in that: It also includes a drying mechanism for drying blind holes in workpieces, the drying mechanism being located below the movable frame (100); The air-drying mechanism includes a bottom frame (201) disposed at the bottom end of the movable frame (100). Mounting blocks (205) are fixed on both sides below the bottom frame (201). An air supply pipe (202) is installed between the two mounting blocks (205). A blower (204) is installed at the air inlet end of the air supply pipe (202). An mounting plate (203) is disposed between the blower (204) and the movable frame (100). Multiple mounting sleeves (208) are fixed at the upper end of the air supply pipe (202). A blowing pipe (209) is disposed at the upper end of the mounting sleeve (208). The blowing pipe (209) is connected to the mounting sleeve (208) by bolts. A speed-regulating structure is provided above the blowing pipe (209) for increasing the flow rate when air-drying blind holes of the workpiece.

2. The trolley for drying blind holes in mold shells according to claim 1, characterized in that: The speed regulating structure includes a connecting frame (210) disposed above the blower pipe (209). The connecting frame (210) is fixedly connected to the movable frame (100). Slide rails (211) are fixed on both sides above the connecting frame (210). A sliding plate (212) is slidably installed between the two slide rails (211). Multiple air outlet slots (213) are opened on the surface of the sliding plate (212). The upper end of the blower pipe (209) is connected to the lower end of the air outlet slot (213). A base (214) is installed on the upper end of the air outlet slot (213). The sliding plate (212) and the base (214) are connected by bolts. An air outlet sleeve (215) is installed on the upper end of the base (214). The air outlet sleeve (215) is threadedly connected to the base (214). Multiple spiral guide slots (216) are opened around the inner wall of the air outlet sleeve (215).

3. The trolley for drying blind holes in mold shells according to claim 2, characterized in that: The clamping mechanism includes a top frame (301) disposed at the top of the movable frame (100). Two sets of fixing plates (302) symmetrically arranged in the front-back direction are mounted on the upper end of the top frame (301), with two fixing plates (302) in each set. The two fixing plates (302) in each set are symmetrical front-back. A bidirectional lead screw (303) is rotatably mounted between the two fixing plates (302) in one set, and a sliding rod (304) is fixed between the two fixing plates (302) in the other set. Two symmetrical clamping plates (306) are installed between the bidirectional lead screw (303) and the slide rod (304). The clamping plates (306) are slidably connected to the slide rod (304), and the clamping plates (306) are threadedly connected to the bidirectional lead screw (303). A clamping motor (305) is installed at the rotating end of the bidirectional lead screw (303). The output end of the clamping motor (305) is fixed to the rotating end of the bidirectional lead screw (303) through a coupling. A mold body (307) is installed between the two clamping plates (306).

4. The trolley for drying blind holes in mold shells according to claim 3, characterized in that: The air outlet slot (213) is a cone shape with the small end facing upwards.

5. A trolley for drying blind holes in mold shells according to claim 4, characterized in that: A filter cartridge (206) is installed inside the air supply duct (202).

6. A trolley for drying blind holes in mold shells according to claim 5, characterized in that: A plurality of heating rods (207) are mounted around the filter cartridge (206) and the air supply pipe (202).

7. A trolley for drying blind holes in mold shells according to claim 6, characterized in that: The clamping plate (306) is made of rubber, and the sliding plate (212) has a handle fixed to its front end.