Automatic feeding and discharging device for plate heat exchanger plate pressing

Abstract

The utility model belongs to the technical field of plate heat exchanger production, and discloses a plate heat exchanger plate pressing automatic feeding and discharging device which comprises a closed safety protective fence, a main operation station and an automatic electric cabinet are arranged on the outer side of the safety protective fence, a hydraulic machine is arranged in the range of the safety protective fence, and a profiling die is matched between an upper workbench and a lower workbench of the hydraulic machine. A servo centering table and a separation table are arranged on one side of the hydraulic machine, a feeding mechanical arm is arranged between the servo centering table and the separation table in a matched mode, a stacking table is arranged on the other side of the hydraulic machine, and a discharging mechanical arm is arranged between the stacking table and the hydraulic machine in a matched mode. An upper laminating device and a lower laminating device are matched with an upper workbench and a lower workbench of the hydraulic machine; the device is high in automation degree, high in production efficiency and high in safety coefficient.

Description

Technical Field

[0001] This utility model belongs to the field of plate heat exchanger manufacturing technology, and relates to an automatic loading and unloading device, particularly an automatic loading and unloading device for pressing plate heat exchanger plates. Background Technology

[0002] Plates are the core component of plate heat exchangers, and plate pressing is a key process in plate heat exchanger production. The pressing efficiency and quality are crucial to the production efficiency and quality of plate heat exchangers. The traditional plate pressing process requires at least 4-5 people to work together. The specific operation process is usually as follows: First, to protect the plates from damage to the mold during pressing, a layer of plastic film needs to be manually wrapped on both sides of the plates. Two people feed the plastic film-wrapped plates into the press. Then, two people at the front and two at the back of the press align the plates fed into the press with the mold. After the plates are aligned in the mold, the press is started to press. After pressing, two people at the back of the press remove the pressed plates from the mold frame, remove the plastic film from the plates, and stack them. Then, the above actions are repeated to press the next plate.

[0003] However, as the heat exchange area of ​​a single plate in a plate heat exchanger continues to increase, this traditional manual plate pressing method, which involves loading and unloading materials, is labor-intensive, has low production efficiency, and if the coordination between multiple people is inconsistent, it can cause damage to the plates and molds, and in severe cases, it can cause personal injury and safety accidents. Therefore, it can no longer meet the needs of actual production. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by proposing an automatic loading and unloading device for pressing plate heat exchanger plates with a high degree of automation, high production efficiency and high safety factor.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution: an automatic loading and unloading device for pressing plate heat exchanger plates, including a closed safety guardrail, a main operating station and an automated electrical cabinet outside the safety guardrail, a hydraulic press within the safety guardrail, a forming mold between the upper and lower worktables of the hydraulic press, a servo centering table and a sheeting table on one side of the hydraulic press, a loading robot between the servo centering table and the sheeting table, a stacking table on the other side of the hydraulic press, and a unloading robot between the stacking table and the hydraulic press; an upper film covering device and a lower film covering device are provided at the upper and lower worktables of the hydraulic press.

[0006] Preferably, the sheeting table is equipped with a pawl and a high-pressure gas nozzle, the loading robot and the unloading robot are both equipped with a vacuum system, the servo centering table is equipped with four servo electric cylinders, the servo electric cylinders are matched with the position of the forming mold, and the upper film covering device and the lower film covering device are equipped with ultrasonic sensors.

[0007] Preferably, the loading robot and the unloading robot are symmetrically arranged on the left and right sides of the hydraulic press's worktable; the upper film covering device and the lower film covering device are respectively arranged on the upper and lower sides of the hydraulic press's worktable, and each of the upper film covering device and the lower film covering device includes a pair and is symmetrically arranged on the left and right sides of the hydraulic press's worktable.

[0008] Preferably, both the loading robot and the unloading robot are equipped with a three-axis servo motion system and a vacuum system. The vacuum system includes a vacuum generator, which is equipped with a vacuum suction cup.

[0009] Preferably, the working surface of the servo centering platform is square, and four servo electric cylinders are symmetrically arranged around the working surface of the servo centering platform.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: The loading and unloading robotic arms of this utility model are driven by servo motors, helical gears, and linear bearings, resulting in high motion precision and effectively replacing manual positioning accuracy; flexible suction cups are used in contact with the heat exchanger plates in both the loading and unloading robotic arms, avoiding surface damage to the plates; a servo centering system is adopted, enabling secondary centering based on the mold position, improving the positioning accuracy between the plates and the mold; an automatic film coating device is used, enabling automatic film coating during plate pressing; and the use of automated equipment to replace manual labor greatly improves production efficiency, reduces labor intensity, and lowers safety risk factors. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of this utility model.

[0013] The components include: a sheeting station 1, a servo centering station 2, a lower film covering device 3, a feeding robot 4, an upper film covering device 5, a hydraulic press 6, a forming mold 7, a unloading robot 8, a palletizing station 9, a safety guardrail 10, a main operating station 11, and an automated electrical cabinet 12. Detailed Implementation

[0014] An automatic loading and unloading device for pressing plate heat exchanger plates, such as Figure 1-2 As shown, the system includes a closed safety guardrail 10, a main operating station 11 and an automated electrical cabinet 12 located outside the safety guardrail 10, a hydraulic press 6 located within the safety guardrail 10, a forming mold 7 connected between the upper and lower worktables of the hydraulic press 6, a servo centering platform 2 and a sheet-separating platform 1 located on one side of the hydraulic press 6, a feeding robot 4 connected between the servo centering platform 2 and the sheet-separating platform 1, a stacking platform 9 located on the other side of the hydraulic press 6, a unloading robot 8 connected between the stacking platform 9 and the hydraulic press 6, and an upper film covering device 5 and a lower film covering device 3 connected at the worktable of the hydraulic press 6.

[0015] The separating table 1 is equipped with a pawl and a high-pressure gas nozzle. The loading robot 4 and unloading robot 8 are both equipped with a vacuum system. The servo centering table 2 is equipped with four servo electric cylinders. The movement of the servo electric cylinders is coordinated with the position of the forming mold 7. The upper film covering device 5 and the lower film covering device 3 are equipped with ultrasonic sensors.

[0016] The loading robot 4 and the unloading robot 8 are symmetrically arranged on the left and right sides of the worktable of the hydraulic press 6; the upper film covering device 5 and the lower film covering device 3 are respectively arranged on the upper and lower sides of the worktable of the hydraulic press 6, and each of the upper film covering device 5 and the lower film covering device 3 includes a pair and is symmetrically arranged on the left and right sides of the worktable of the hydraulic press 6.

[0017] Both the loading robot 4 and the unloading robot 8 are equipped with a three-axis servo motion system and a vacuum system. The vacuum system includes a vacuum generator, which is equipped with a vacuum suction cup.

[0018] The working surface of the servo centering platform 2 is square, and four servo electric cylinders are symmetrically arranged around the working surface of the servo centering platform 2.

[0019] The separating table 1 separates the neatly stacked sheets into individual sheets, ensuring that the loading robot 4 can smoothly grasp them. The servo centering table 2 determines the position of the sheet based on its position in the mold by using four servo electric cylinders to move the sheet in four different directions. Both the loading robot 4 and the unloading robot 8 consist of an X, Y, and Z three-axis servo motion system and a vacuum system. The vacuum system grasps the sheet using a vacuum generator and vacuum suction cups, while the three-axis servo motion system enables automatic loading and unloading of the sheet. The upper film coating device 5 and the lower film coating device 3 each consist of two identical sets of devices to automatically coat the top and bottom surfaces of the sheet. The stacking table 9 is mainly used to stack the pressed sheets for easy lifting.

[0020] Working process: After pressing the start button on the main control station 11, the loading robot 4 automatically moves from its initial position to the top of the sheet on the separating table 1 according to the adjusted trajectory. At this time, the pawl of the separating table 1 moves to pick up the top sheet and blow high-pressure gas to separate the top sheet from the bottom sheet of the stack. The vacuum generator of the loading robot 4 is activated to create a vacuum in the vacuum suction cup to pick up the sheet. When the negative pressure in the vacuum suction cup reaches a certain value, that is, after the vacuum suction cup has completely picked up the sheet, the loading robot 4 begins to move according to the set trajectory. After reaching the designated position on the servo centering table 2, the vacuum generator is disconnected, and the vacuum suction cup generates positive pressure gas to place the sheet on the servo centering table 2. After the loading robot 4 puts down the sheet, the four servo electric cylinders on the servo centering table 2 are activated to move the sheet according to the mold position. After being adjusted to the appropriate position, the loading robot 4 picks up the sheet again and sends it to the forming mold 7; the hydraulic press 6 starts to press the sheet, and the loading robot 4 starts to pick up and center the sheet from the sheeting table 1 while the sheet is being pressed; after the sheet is pressed, the upper worktable of the hydraulic press 6 rises to the initial position; the unloading robot 8 moves into the hydraulic press 6 and opens the vacuum suction cup to pick up the pressed sheet and moves it to the stacking table 9, placing the sheet on the stacking table 9; at the same time, the upper film covering device 5 and the lower film covering device 3 operate when the unloading robot 8 leaves the mold. After the ultrasonic sensor detects that the plastic cloth has moved one sheet length, the loading robot 4 will send the centered sheet to the hydraulic press 6 for pressing, repeating the next cycle; the automation cabinet 12 works with the main control station 11 to realize the automatic control of the whole machine.

Claims

1. An automatic loading and unloading device for pressing plate heat exchanger plates, characterized in that, The system includes a closed safety barrier, outside which is a main operating station and an automated electrical cabinet. Within the safety barrier is a hydraulic press, with forming molds between the upper and lower worktables. One side of the hydraulic press has a servo centering table and a sheeting table, with a feeding robot between them. The other side of the hydraulic press has a stacking table, with a unloading robot between it and the hydraulic press. The upper and lower worktables of the hydraulic press are also equipped with upper and lower film covering devices.

2. The automatic loading and unloading device for pressing plate heat exchanger plates according to claim 1, characterized in that: The separating table is equipped with pawls and high-pressure gas nozzles. Both the loading and unloading robotic arms are equipped with vacuum systems. The servo centering table is equipped with four servo electric cylinders, which are matched with the position of the forming mold. The upper and lower film covering devices are equipped with ultrasonic sensors.

3. The automatic loading and unloading device for pressing plate heat exchanger plates according to claim 2, characterized in that: The loading robot and the unloading robot are symmetrically arranged on the left and right sides of the hydraulic press's worktable; the upper film covering device and the lower film covering device are respectively arranged on the upper and lower sides of the hydraulic press's worktable, and each upper film covering device and the lower film covering device consists of a pair and are symmetrically arranged on the left and right sides of the hydraulic press's worktable.

4. The automatic loading and unloading device for pressing plate heat exchanger plates according to claim 3, characterized in that: Both the loading and unloading robotic arms are equipped with a three-axis servo motion system and a vacuum system. The vacuum system includes a vacuum generator, which is equipped with a vacuum suction cup.

5. The automatic loading and unloading device for pressing plate heat exchanger plates according to claim 4, characterized in that: The working surface of the servo centering platform is square, and four servo electric cylinders are symmetrically arranged around the working surface of the servo centering platform.

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