Coating device for inner hole of charging barrel

Abstract

A material barrel inner hole coating device comprises two sets of rollers arranged in parallel and an intermediate frequency heating furnace arranged on the left sides of the rollers, the two ends of the rollers are installed on a rack through bearing seats, the two sets of rollers are identical in rotating direction, guide rails are symmetrically arranged on the rack in the front-back direction in the length direction, and a supporting seat of an n-shaped structure is arranged above the rack in a straddling mode. A driving wheel and a driven wheel are installed on the lower portion of the supporting base and are in rolling fit with the guide rail, a clamping mechanism is arranged on the left portion of the supporting base and used for positioning the pull rod, the left end of the pull rod is bent downwards to form a hook, and a hanging buckle is arranged on an end cover at one end of the charging barrel and matched with the hook. According to the device, the charging barrel is pushed into the intermediate frequency heating furnace along the roller through the pull rod, after heating is completed, the charging barrel is pulled to the roller to rotate along with the roller, alloy powder in the charging barrel is evenly coated on the inner wall of the charging barrel, the roller plays a role in feeding guiding and assisting in rotation of the charging barrel at the same time, the structure is simple, the coating process can be completed in a small space, and the coating efficiency is improved. The practicability is high.

Description

Technical Field

[0001] This utility model relates to a coating device for the inner hole of a material barrel. Background Technology

[0002] Injection molding machines can mold complex plastic products in one step and are easy to operate, making them widely used in the plastics processing industry. However, the injection molding machine barrel is prone to wear during operation. Once worn, it affects the processing effect of the injection molding machine, greatly reducing production efficiency and impacting product quality. Current technology typically involves coating the inner bore of the barrel with an alloy layer to increase its wear resistance. However, existing coating mechanisms are complex in structure, occupy a large production space, and are not suitable for promotion in small enterprises. Utility Model Content

[0003] To address the shortcomings mentioned above, this utility model provides a coating device for the inner hole of a material barrel.

[0004] To achieve the above objectives, this utility model provides a coating device for the inner hole of a material cylinder, comprising two sets of rollers arranged in parallel, a medium-frequency heating furnace located on the left side of the rollers, the two ends of the rollers being mounted on a frame via bearing seats, the two sets of rollers rotating in the same direction, guide rails symmetrically arranged along the length of the frame, a portal-shaped support seat straddling the frame, a drive wheel and a driven wheel mounted on the lower part of the support seat and forming a rolling engagement with the guide rails, a clamping mechanism for positioning a pull rod on the left side of the support seat, the left end of the pull rod being bent downward to form a hook, and a hook on the end cap at one end of the material cylinder engaging with the hook.

[0005] As a further improvement of this utility model, the clamping mechanism includes a base fixed to the support seat and an upper cover disposed on the upper part of the base. The upper cover and the base form a receiving cavity and a limiting groove. The right end of the pull rod is provided with a connector. A limiting rod is radially installed in the middle of the connector. The connector is placed in the receiving cavity and the limiting rod is engaged in the limiting groove.

[0006] As a further improvement of this utility model, the front side of the upper cover is hinged to the base by a pin, and the rear side of the upper cover is fastened and positioned to the base by a snap fastener.

[0007] As a further improvement of this utility model, one end of the roller extends out of the bearing seat and is connected to the second motor through the first belt drive assembly.

[0008] As a further improvement of this utility model, the drive wheel is connected to the rotating shaft through the second belt drive assembly, the rotating shaft is located on the upper part of the support base, and the middle part of the rotating shaft is connected to the first motor through the third belt drive assembly.

[0009] As a further improvement of this utility model, the driving wheel and the driven wheel are mounted on the lower inner side of the support base via a bracket.

[0010] As a further improvement of this utility model, a guide groove is provided in the middle of the guide rail, and the lower parts of the driving wheel and the driven wheel are fitted into the guide groove.

[0011] The beneficial effects of this utility model are as follows:

[0012] The device uses a pull rod to push the material cylinder along the drum into the medium-frequency heating furnace. After heating, the material cylinder is pulled onto the drum and rotates with the drum, so that the alloy powder in the material cylinder is evenly coated on the inner wall of the material cylinder. The drum also serves as a feeding guide and assists in the rotation of the material cylinder. The structure is simple and the coating process can be completed in a small space, making it highly practical. Attached Figure Description

[0013] Figure 1 This is a front view of a coating device for the inner hole of a material barrel according to the present invention;

[0014] Figure 2 This is a right view of a coating device for the inner hole of a material barrel according to the present invention;

[0015] Figure 3 This is a front view of the clamping mechanism 13;

[0016] Figure 4 This is a side view of the clamping mechanism 13;

[0017] Figure 5 This is the front view of lever 14;

[0018] Figure 6 for Figure 5 Sectional view along line AA in the middle;

[0019] Figure 7 This is a cross-sectional view of the barrel 15.

[0020] In the diagram: 1. Frame; 2. Roller; 3. Bearing seat; 4. First belt drive assembly; 5. Guide rail; 51. Guide groove; 6. Support seat; 61. Bracket; 7. Drive wheel; 8. Driven wheel; 9. Second belt drive assembly; 10. Rotary shaft; 11. Third belt drive assembly; 12. First motor; 13. Clamping mechanism; 131. Base; 132. Top cover; 133. Pin; 134. Receiving cavity; 135. Limiting groove; 136. Fastener; 14. Pull rod; 141. Connector; 142. Limiting rod; 143. Hook; 15. Material cylinder; 151. End cover; 152. Hook; 153. Alloy powder; 16. Medium frequency heating furnace; 17. Second motor. Detailed Implementation

[0021] like Figure 1-2 As shown, the coating device for the inner hole of a material cylinder according to this utility model includes two sets of rollers 2 arranged in parallel, and a medium-frequency heating furnace 16 located on the left side of the rollers 2. The two ends of the rollers 2 are mounted on the frame 1 through bearing seats 3. The two sets of rollers 2 rotate in the same direction. One end of the roller 2 extends out of the bearing seat 3 and is connected to a second motor 17 through a first belt drive assembly 4. The frame 1 is symmetrically provided with guide rails 5 along its length. A portal-shaped support seat 6 is erected above the frame 1. A drive wheel 7 and a driven wheel 8 are installed on the lower part of the support seat 6 and form a rolling engagement with the guide rails 5. The drive wheel 7 and the driven wheel 8 are installed on the lower inner side of the support seat 6 through a bracket 61. A guide groove 51 is provided in the middle of the guide rail 5. The lower parts of the driving wheel 7 and the driven wheel 8 are fitted into the guide groove 51. The driving wheel 7 is connected to the rotating shaft 10 through the second belt drive assembly 9. The rotating shaft 10 is located on the upper part of the support base 6. The middle part of the rotating shaft 10 is connected to the first motor 12 through the third belt drive assembly 11. The left side of the support base 6 is provided with a clamping mechanism 13 for positioning the pull rod 14. The left end of the pull rod 14 is bent downward to form a hook 143. The end cap 151 at one end of the material cylinder 15 is provided with a hook 152 that cooperates with the hook 143. The clamping mechanism 13 includes a base 131 fixed to the support base 6 and an upper cover 132 located on the upper part of the base 131. The upper cover 132 forms a receiving cavity 134 and a limiting groove 135 at the junction with the base 131 (see Figure 3 The right end of the pull rod 14 is provided with a connector 141, and a limit rod 142 is radially installed in the middle of the connector 141 (see...). Figure 5 , Figure 6 The connector 141 is placed in the receiving cavity 134, and the limiting rod 142 is engaged in the limiting groove 135. The front side of the upper cover 132 is hinged to the base 131 by a pin 133, and the rear side of the upper cover 132 is fastened and positioned to the base 131 by a buckle 136 (see...). Figure 4 ).

[0022] The device uses a pull rod to push the material cylinder along the drum into the medium-frequency heating furnace. After heating, the material cylinder is pulled onto the drum and rotates with the drum, so that the alloy powder in the material cylinder is evenly coated on the inner wall of the material cylinder. The drum also serves as a feeding guide and assists in the rotation of the material cylinder. The structure is simple and the coating process can be completed in a small space, making it highly practical.

[0023] In practical use, for ease of understanding of this utility model, it will be described in conjunction with the accompanying drawings;

[0024] like Figure 7 As shown, before using this device, alloy powder 153 is placed into the inner hole of the barrel 15, and both ends are sealed by end caps 151. One of the end caps 151 has a hook 152 fixed on the outside.

[0025] During operation, alloy powder is placed into the cylinder, and end caps are welded to both ends, one of which has a hook. The cylinder containing alloy powder is placed between two rollers, which are at rest. The end of the cylinder with the hook faces the support base. The hook at the end of the pull rod is engaged with the hook at the end of the cylinder. The connector at the other end of the pull rod is placed into the base cavity and the top cover is closed for positioning. The first motor drives the shaft to rotate via the third belt drive assembly. The shaft drives the drive wheel to roll along the guide rail via the second belt drive assembly. The support base moves as a whole towards the medium-frequency heating furnace. The pull rod pushes the cylinder along the surface of the rollers into the medium-frequency heating furnace. The pull rod is then removed, and the cylinder is heated in a medium-frequency heating furnace to melt the alloy powder inside. After heating, the two ends of the pull rod are reassembled onto the cylinder and clamping mechanism. The first motor reverses, and the pull rod pulls the cylinder back onto the roller. The pull rod is then removed, and the second motor drives the two sets of rollers to rotate synchronously through the first belt drive assembly. The two sets of rollers rotate in the same direction, and the friction between the roller surface and the cylinder surface drives the cylinder to rotate, causing the molten alloy powder to adhere to the surface of the cylinder's inner hole. After the alloy powder coating is completed, the cylinder is removed from the roller, and the end caps at both ends are cut off using a cutting mechanism.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A barrel bore coating apparatus characterized by: The application relates to a double-cylinder heating device, which comprises two groups of parallel arranged cylinders (2), a medium-frequency heating furnace (16) arranged on the left side of the cylinders (2), and a frame (1) on which the two ends of the cylinders (2) are installed through bearing seats (3), the two groups of cylinders (2) are the same in direction, guide rails (5) are symmetrically arranged on the frame (1) along the length direction, a door-shaped support seat (6) is vertically arranged above the frame (1), a driving wheel (7) and a driven wheel (8) are arranged on the lower part of the support seat (6) and are in rolling cooperation with the guide rails (5), a clamping mechanism (13) is arranged on the left part of the support seat (6) for positioning a pull rod (14), the left end of the pull rod (14) is bent downward to form a hook (143), and a hanging buckle (152) is arranged on the end cover (151) of one end of a material cylinder (15) and is matched with the hook (143).

2. A barrel bore coating apparatus according to claim 1, wherein: The clamping mechanism (13) comprises a base (131) fixed with the support seat (6), and an upper cover (132) arranged on the upper part of the base (131), the upper cover (132) and the base (131) are connected and form a containing cavity (134) and a limiting groove (135), a connecting head (141) is arranged on the right end of the pull rod (14), a limiting rod (142) is arranged in the middle of the connecting head (141) in the radial direction, the connecting head (141) is arranged in the containing cavity (134), and the limiting rod (142) is matched and clamped in the limiting groove (135).

3. A barrel bore coating apparatus according to claim 2, wherein: The front side of the upper cover (132) is hinged with the base (131) through a pin shaft (133), and the rear side of the upper cover (132) is positioned and buckled with the base (131) through a buckle piece (136).

4. A barrel bore coating apparatus as defined in claim 1, wherein: The cylinder (2) extends out of the bearing seat (3) and is connected with a second motor (17) through a first belt transmission assembly (4).

5. A barrel bore coating apparatus as defined in claim 1, wherein: The driving wheel (7) is connected with a rotating shaft (10) through a second belt transmission assembly (9), the rotating shaft (10) is arranged on the upper part of the support seat (6), and the rotating shaft (10) is connected with a first motor (12) through a third belt transmission assembly (11).

6. A barrel bore coating apparatus according to claim 1, wherein: The driving wheel (7) and the driven wheel (8) are arranged on the inner lower part of the support seat (6) through a support (61).

7. A barrel bore coating apparatus according to claim 1, wherein: The middle part of the guide rail (5) is provided with a guide groove (51), and the lower parts of the driving wheel (7) and the driven wheel (8) are matched and embedded in the guide groove (51).

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