Discharging structure and process of water expansion mold for heat preservation container body

Abstract

The unloading structure and process of the water-swelling mold for the body of the heat preservation container, the lower mold is provided with several fixed columns, the fixed block covers the top of the fixed column, the fixed block is fixed on the lower mold seat through the fixed screw, the lower mold seat is connected to the lower mold through the fixed screw, and a convex and concave positioning is provided between the lower mold frame and the lower mold, and several unloading springs are provided between the lower mold frame and the lower mold, and the positioning shaft is inverted on the axis core line of the lower mold seat. The pad, the water-tight pad, and the mandrel are sequentially mounted on the positioning shaft. The process of the present invention is: after the product is formed, the mandrel stops moving up, the mandrel starts to move down, and the first stage of demoulding stroke is performed; when the mandrel continues to move down, the second stage of demoulding stroke is performed until the body of the cylinder is completely separated from the lower mold frame. The advantage of the present invention is that three strong demoulding fixed columns are installed on the lower mold seat. When the mandrel and the water-tight pad make the body of the cylinder complete the first strong demoulding, the lower mold frame, under the action of the unloading spring, pushes the lower mold frame upward to the fixed block for the second strong demoulding, thereby completely separating the body of the cylinder.

Description

Technical Field

[0001] The present invention relates to a thermal insulation container manufacturing device and process, and in particular to a material discharging structure and process of a water expansion mold for a metal plate barrel of a thermal insulation container. Background Art

[0002] The discharge structure of the conventional insulated container metal sheet barrel water expansion mold is a one-time discharge device. This structure is not stable enough in the manufacturing process of the insulated container. The barrel and the lower mold frame are locked together after the water-tight pad is expanded, making it impossible to separate them completely. The expanded barrel must be separated from the lower mold by knocking the lower mold frame, which reduces production efficiency. In order to improve this phenomenon, the barrel expansion pressure of the water expansion machine can only be lowered (3-5mpa), but the disadvantage is that the barrel shape cannot be expanded to fullness. As a result, the surface quality (hoop mark) and barrel size of the sheet material barrel cannot be controlled, which increases the difficulty of production. Therefore, seeking new manufacturing equipment and processing technology for the discharge structure has become a new way to improve production efficiency and ensure product quality. Summary of the invention

[0003] The purpose of the present invention is to provide a discharge structure and process of a water expansion mold for a heat preservation container barrel body in view of the defects in the prior art. The present invention installs three strong release fixed columns on the lower mold base 1. When the mandrel 14 and the water-tight pad 10 complete the first strong release of the barrel body 12, the lower mold frame 3 is pushed upward to the fixed block 5 under the action of the discharge spring 6 to perform the second strong release, so that the barrel body 12 is completely separated. The present invention can adjust the barrel body expansion pressure of the water expansion mold machine to 8-14 MPa on the basis of the original expansion pressure.

[0004] The present invention comprises: a lower die seat 1, a lower die 2, a lower mold frame 3, a fixing column 4, a fixing block 5, a discharge spring 6, a fixing screw 7, a positioning shaft 8, a cushion block 9, a water-tight pad 10, an upper mold frame 11, a barrel 12, an exhaust hole 13, a mandrel 14, a water-tight pad 15, and a fixing screw 16, wherein the lower die 2 is provided with a plurality of fixing columns 4, the fixing block 5 covers the top of the fixing column 4, the fixing block 5 is fixed to the lower die seat 1 through the fixing screw 7 through the fixing column 4, the lower die seat 1 is provided with a plurality of fixing holes at the bottom, the lower die seat 1 is connected to the lower die 2 as a whole through the fixing screw 16, a convex and concave positioning is provided between the lower mold frame 3 and the lower die 2, the lower mold frame 3 is embedded in the lower die 2, the upper mold frame 11 is against the lower mold frame 3, and a plurality of discharge springs 6 are provided between the lower mold frame 3 and the lower die 2. The positioning shaft 8 is inverted on the axis core line of the lower die seat 1. The cushion block 9, the water-tight pad 10, and the mandrel 14 are sequentially sleeved on the positioning shaft 8. The water-tight pad 15 is embedded in the bottom of the positioning shaft 8 and is sealed and connected with the pipe wall of the water expansion molding machine. The sealing effect of the water-tight pad 10 and the water-tight pad 15 is used to ensure the effect of no water leakage.

[0005] The plurality of fixing columns 4 on the lower die 2 and the plurality of fixing holes at the bottom of the lower die base 1 are evenly distributed.

[0006] The upper mold frame 11 is provided with an exhaust hole 13 .

[0007] The lower mold frame 3 is provided with a plurality of convex strips, and the lower mold 2 is provided with a plurality of grooves. The lower mold frame 3 and the lower mold 2 are matched and positioned and connected.

[0008] The process of the unloading structure of the present invention comprises the following steps:

[0009] A. The mandrel 14 stops moving upward, and the barrel 12 is formed;

[0010] B. Move the mandrel 14 downward, drive the lower die 2 and the lower die seat 1 downward, and perform the first stage demoulding stroke. Under the action of the discharge spring 6, the lower mold frame 3 overcomes the resistance of the water-tight pad 10 and the water-tight pad 15, and the discharge spring 6 pushes the lower mold frame 3 upward to below the fixed block 5;

[0011] C. At this time, the lower mold frame 3 has slid relative to the wall of the barrel body 1, and the core shaft 14 continues to move downward, driving the lower mold 2 and the lower mold base 1 to move downward, and the second stage of demoulding stroke is carried out until the barrel body 12 is completely separated from the lower mold frame 3.

[0012] The advantage of the present invention is that three strong-release fixing columns are installed on the lower die base 1. When the mandrel 14 and the water-tight pad 10 complete the first strong release of the barrel 12, the lower mold frame 3, under the action of the unloading spring 6, pushes the lower mold frame 3 upward to the fixed block 5, and performs the second strong release until the barrel 12 is completely separated. The expansion pressure of the sheet metal barrel can be adjusted to 8-14 MPa. The expansion quality and size of the sheet metal barrel are guaranteed, and the structure is simple, maintenance is convenient, production efficiency is high, operation is convenient, cost is low, and performance is stable. At the same time, the difficulty of production is reduced, thereby saving production costs, improving production efficiency, and increasing stability during production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of the present invention.

[0014] In the figure: 1 lower die base, 2 lower die, 3 lower mold frame, 4 fixing column, 5 fixing block, 6 unloading spring, 7 fixing screw, 8 positioning shaft, 9 cushion block, 10 water-tight pad, 11 upper mold frame 12 barrel, 13 exhaust hole, 14 core shaft, 15 water-tight pad, 16 fixing screw. DETAILED DESCRIPTION

[0015] The embodiments of the present invention are further described below in conjunction with the accompanying drawings:

[0016] See also Figure 1The present invention is composed of a lower die base 1, a lower die 2, a lower mold frame 3, a fixing column 4, a fixing block 5, a discharge spring 6, a fixing screw 7, a positioning shaft 8, a cushion block 9, a water-tight pad 10, an upper mold frame 11, a barrel 12, an exhaust hole 13, a mandrel 14, a water-tight pad 15, and a fixing screw 16. The lower die 2 is provided with several fixing columns 4, and the present invention has three fixing columns 4. The fixing block 5 covers the top of the fixing column 4, and the fixing block 5 is fixed to the lower die base 1 through the fixing screw 7 through the fixing column 4. The bottom of the lower die base 1 is provided with several fixing holes. The bottom of the lower die base 1 of the present invention is provided with two fixing holes, and the lower die base 1 is connected to the lower die 2 as a whole through the fixing screw 16. The two fixing columns 4 on the lower die 2 of the present invention are evenly distributed with the two fixing holes at the bottom of the lower die base 1. A convex and concave positioning is provided between the lower mold frame 3 and the lower die 2, and the lower mold frame 3 is embedded in the lower die 2. The lower mold frame 3 is provided with several convex strips, and the lower mold 2 is provided with several grooves. The present invention has two convex strips and two grooves. The lower mold frame 3 and the lower mold 2 are matched and positioned to connect the upper mold frame 11 and the lower mold frame 3. The upper mold frame 11 is provided with an exhaust hole 13. Several unloading springs 6 are provided between the lower mold frame 3 and the lower mold 2. The positioning shaft 8 is inverted on the shaft core line of the lower mold base 1. The cushion block 9, the water-tight pad 10, and the core shaft 14 are sequentially mounted on the positioning shaft 8. The water-tight pad 15 is embedded in the bottom of the positioning shaft 8 and is sealed and connected with the tube wall of the water expansion molding machine.

[0017] The process of operating the unloading structure of the present invention comprises the following steps:

[0018] A. The mandrel 14 stops moving upward, and the barrel 12 is formed;

[0019] B. Move the mandrel 14 downward, driving the lower die 2 and the lower die seat 1 downward, and perform the first stage of demoulding. Under the action of the discharge spring 6, the lower mold frame 3 overcomes the resistance of the water-tight pad 10 (15), and the discharge spring 6 pushes the lower mold frame 3 upward to below the fixed block 5;

[0020] C. At this time, the lower mold frame 3 has slid relative to the wall of the barrel 12, and the core shaft 14 continues to move downward, driving the lower mold 2 and the lower mold base 1 to move downward, and the second stage of demoulding stroke is carried out until the barrel 12 is completely separated from the lower mold frame 3.

[0021] In the operation of this embodiment, three strong stripping fixing columns are installed on the lower die base 1. When the mandrel 14 and the water-tight pad 10 complete the first strong stripping of the cylinder body 12, the lower mold frame 3 is pushed upward to the fixing block 5 under the action of the unloading spring 6, and the second strong stripping is performed until the cylinder body 12 is completely separated.

Claims

1. A discharge structure of a water-swelling mold for a heat-insulating container body, comprising: a lower mold base (1), a lower mold (2), a lower mold frame (3), a fixing column (4), a fixing block (5), a discharge spring (6), a fixing screw A (7), a positioning shaft (8), a cushion block (9), a water-tight pad A (10), an upper mold frame (11), a body (12), an exhaust hole (13), a core shaft (14), a water-tight pad B (15), and a fixing screw B (16), wherein the structure is characterized in that The lower mold (2) is provided with a plurality of fixing columns (4), the fixing block (5) covers the top of the fixing column (4), the fixing block (5) passes through the fixing column (4) and is fixed on the lower mold base (1) via fixing screws A (7), the bottom of the lower mold base (1) is provided with a plurality of fixing holes, the lower mold base (1) is connected to the lower mold (2) via fixing screws B (16), a convex and concave positioning is provided between the lower mold frame (3) and the lower mold (2), the lower mold frame (3) is embedded in the lower mold (2), the lower mold frame (3) is provided with a plurality of convex strips, the lower mold (2) is provided with a plurality of grooves, the lower mold frame (3) and the lower mold (2) are matched and positioned, the upper mold frame (11) is abutted against the lower mold frame (3), and the lower mold frame (11) is provided with a plurality of concave strips. A plurality of discharge springs (6) are arranged between the frame (3) and the lower die (2); the positioning shaft (8) is inverted on the axis core line of the lower die seat (1); a cushion block (9), a water-tight pad A (10), and a core shaft (14) are sequentially mounted on the positioning shaft (8); a water-tight pad B (15) is embedded in the bottom of the positioning shaft (8) and is sealed and connected to the tube wall of the water expansion molding machine; an exhaust hole (13) is arranged on the upper mold frame (11); when the core shaft (14) and the water-tight pad A (10) complete the first forced release of the cylinder body (12), the lower mold frame (3) is pushed upward to the fixed block (5) under the action of the discharge spring (6) to perform a second forced release until the cylinder body (12) is completely separated.

2. The unloading structure of the water expansion mold for the heat preservation container body according to claim 1 is characterized in that The plurality of fixing columns (4) on the lower die (2) and the plurality of fixing holes at the bottom of the lower die base (1) are evenly distributed.

3. A discharging process using the discharging structure of the water swelling mold for the body of a heat-insulating container as claimed in claim 1, the process comprising the following steps: A. After the product is formed, the mandrel (14) stops moving upward, and the barrel (12) is formed; B. Move the mandrel (14) downward, driving the lower die (2) and the lower die seat (1) downward, and perform the first stage of demoulding. Under the action of the discharge spring (6), the lower mold frame (3) overcomes the resistance of the water-tight pad A (10), and the discharge spring (6) pushes the lower mold frame (3) upward to below the fixed block (5); C. At this time, the lower mold frame (3) has slid relative to the wall of the barrel (12), and the mandrel (14) continues to move downward, driving the lower mold (2) and the lower mold base (1) to move downward, and the second stage of demoulding is carried out until the barrel (12) is completely separated from the lower mold frame (3).

4. The unloading process of the unloading structure of the water swelling mold for the heat preservation container body according to claim 3 is characterized in that :The expansion pressure of the barrel is increased to 8-14 MPa.

Images