Multi-station spherical vacuum shaping equipment

Abstract

The utility model relates to a multi-station sphere vacuum shaping equipment, which belongs to the field of sphere processing technology, and aims to solve the problems in the existing sphere vacuum shaping production, which is manual operation, has a large workload, and the existing mechanical equipment has poor connection between each process, low production efficiency and low equipment applicability. The workbench of the present application is provided with a first transfer assembly and a second transfer assembly; the vacuum assembly and the unloading assembly are installed on the workbench to form a vacuum station and an unloading station; the first transfer assembly is provided with air needles at intervals; the vacuum assembly includes a vacuum unit and an extrusion exhaust assembly; the unloading assembly is provided with a coding assembly; the air needles are respectively connected to the vacuum units; the sphere is placed on the air needle at the loading station and is transferred to the extrusion exhaust assembly by the first transfer assembly; the second transfer assembly is provided with a clamping unit, the clamping unit clamps the sphere and is transferred to the unloading station by the second transfer assembly. The vacuum equipment of the present application has high production efficiency and a wide range of equipment applications.

Description

Technical Field

[0001] The utility model relates to multi-station sphere vacuum shaping equipment, belonging to the technical field of sphere processing. Background Art

[0002] There are many kinds of balls, such as basketball, football, volleyball, rugby, handball, etc. The general structure of a ball includes a bladder, lining, surface and air nozzle. The bladder is located at the heart of the ball and is also the innermost layer of the ball for support. The lining is a reinforcing support structure between the bladder and the surface. When in use, the bladder is filled with gas through the air nozzle, which gives the ball elasticity.

[0003] When the balls are semi-processed or fully processed, usually for the convenience of transportation and cost considerations, the finished or semi-finished balls, i.e. the inner liner of the balls, are extracted and then the residual air is shipped. After shipment, the manufacturer's production code is sprayed on the goods accordingly, and when the goods reach the hands of the user, they are inflated and used by themselves. However, the vacuuming equipment and coding equipment for the balls are currently set up separately, and the operators load and unload the materials manually. However, in this way, not only the cost of arranging the equipment is increased, but the equipment also occupies more operating space, which will also greatly reduce its production efficiency.

[0004] In the prior art, there is a method of using mechanical equipment to carry out the above-mentioned sphere vacuum shaping production, using a circular sphere transportation line, and transferring the sphere to each processing station in turn, that is, loading from the loading station, and then transferring it to the vacuum station for vacuum shaping in turn, and then transferring it to the coding station for coding, and finally unloading the finished product. This type of equipment uses a circular transportation line, but the time of each processing step is different, so it will cause the transportation line to run at intervals during actual production, resulting in low overall production efficiency, and in mass production, by increasing the amount of spheres put in, it will cause the various processes to be unable to be effectively connected, and the equipment has low applicability. Therefore, a multi-station sphere vacuum shaping equipment is urgently needed to solve the problem that in the existing sphere vacuum shaping production, manual operation is used, and there is a large workload for personnel, and the existing mechanical equipment has poor connection between the various processes, low production efficiency and low equipment applicability. Utility Model Content

[0005] The utility model aims to provide a multi-station spherical vacuum shaping device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-station sphere vacuum shaping equipment, comprising a workbench, a vacuum assembly and a blanking assembly, the workbench is provided with a first transfer assembly and a second transfer assembly; the vacuum assembly and the blanking assembly are installed on the workbench to constitute a vacuum station and a blanking station; air needles are arranged at intervals on the first transfer assembly; the vacuum assembly comprises a vacuum unit and an extrusion exhaust assembly; the blanking assembly is provided with a coding assembly; the air needles are respectively connected to the vacuum units; the sphere is placed on the air needle at the loading station and is transferred by the first transfer assembly to the extrusion exhaust assembly for vacuuming and extrusion shaping; the second transfer assembly is provided with a clamping unit, the clamping unit clamps the vacuumed and extruded sphere and is transferred by the second transfer assembly to the blanking station for coding and blanking.

[0007] Specifically, the number of the clamping units and extrusion exhaust components of the first transfer assembly and the second transfer assembly are multiple, and each of the first transfer assembly, clamping unit and extrusion exhaust component is installed on the workbench in a one-to-one correspondence; an isolation net is provided on the workbench between the loading station and the first transfer assembly. The present application realizes a multi-station sphere vacuum shaping production line by setting the number of the clamping units and extrusion exhaust components of the first transfer assembly and the second transfer assembly to multiple, and the three correspond to each other, so as to increase the sphere processing volume per unit time and improve production efficiency. At the same time, the number of processing stations can also be adjusted according to production requirements, and the equipment has a wide range of applications.

[0008] Specifically, the first transfer assembly includes a mounting frame, a first driving cylinder and a second driving cylinder; the mounting frame is movably mounted on the workbench, the first driving cylinder is mounted on the workbench, and its power end is fixedly connected to the mounting frame; the second driving cylinder is fixedly mounted on the mounting frame, and an air needle is installed at the end of its power end; the mounting frame is driven by the power of the first driving cylinder, driving the second driving cylinder to move toward the extrusion exhaust assembly in the first direction; the air needle is driven by the power of the second driving cylinder, driving the ball to move along the second direction toward the extrusion cavity of the extrusion exhaust assembly.

[0009] Specifically, a plurality of mounting plates are provided at intervals along the circumferential direction at one end of the mounting frame away from the first driving cylinder; a second driving cylinder is fixedly installed on each mounting plate; the mounting frame is driven by the power of the first driving cylinder to perform circular rotational motion in the horizontal direction; the air needle is driven by the power of the second driving cylinder to perform reciprocating linear motion in the radial direction. The mounting frame is rotatably mounted on the workbench, and a plurality of mounting plates are provided at intervals along the circumferential direction on the mounting frame, so that the air needle on the mounting plate is driven in turn to transfer the ball between the loading station and the extrusion exhaust assembly through the rotation of the mounting frame. This allows loading and vacuum shaping to be carried out simultaneously, improving the time coordination between various processing steps and improving production efficiency.

[0010] Specifically, the vacuum unit includes a vacuum air pipe and a vacuum negative pressure pump; one end of the vacuum air pipe is connected to the air needle, and the other end is connected to the vacuum negative pressure pump; the extrusion exhaust assembly includes a mounting tube, a plurality of extrusion blocks and an extrusion cylinder; a plurality of extrusion blocks are installed in the mounting tube at intervals to form an extrusion cavity, and one end of the extrusion blocks is respectively connected to the power end of the extrusion cylinder.

[0011] Specifically, a plurality of clamping units are grouped according to a number of adjacent ones to form a plurality of groups of transfer components; a transfer component mounting frame is installed on the workbench; the transfer component mounting frame is provided with a plurality of sliding plates and transfer motors; the sliding plates, transfer components and transfer motors are arranged one by one; the sliding plate is slidably mounted on the transfer component mounting frame, the transfer motor is fixedly mounted on the transfer mounting frame, and its power end is connected to the sliding plate; the sliding plate is provided with a clamping unit mounting frame and a radial cylinder; the radial cylinder is fixedly mounted on the sliding plate, and its power end is fixedly connected to the clamping unit mounting frame; the clamping units are installed at intervals on the clamping unit mounting frame. By setting the sliding plate as the mounting carrier of the clamping unit, the transfer motor drives the sliding plate to slide back and forth, so as to drive the clamping unit to slide between the extrusion exhaust assembly and the unloading station, thereby driving the vacuumized sphere to be transferred to the unloading station for coding and unloading. Considering that the sphere is inserted into the air needle, in order to facilitate the removal of the sphere from the air needle, a radial cylinder is provided to drive the clamping unit to remove the sphere from the air needle, so that the air needle and the sphere are not damaged, thereby improving the yield.

[0012] Specifically, the clamping unit includes a clamping cylinder, two clamps and a third driving cylinder; the third driving cylinder is a rotating cylinder, which is fixedly mounted on the clamping unit mounting frame, and its power end is fixedly connected to the clamping cylinder; the power end of the clamping cylinder is connected to the two clamps. After the sphere is vacuum-formed, it is clamped by the clamping cylinder in a vertical position. However, during subsequent coding and unloading, the vertical position will cause the sphere to be unstable and unable to be uncoded and unloaded. The present application sets a rotating cylinder to drive the clamping cylinder to rotate, so as to drive the sphere to change the unloading position, which is convenient for subsequent coding and unloading.

[0013] Specifically, the unloading assembly is provided with a product transport line to constitute an unloading station; the product transport line includes a transport frame, a first drive wheel, a first drive belt and a first drive motor; first drive wheels are rotatably installed on both sides of the transport frame, and two first drive belts are sleeved on the first drive wheels on both sides of the transport frame, and the two first drive belts are relatively parallel and leave an installation cavity between them; the first drive motor is fixedly installed on the transport frame, and its power end is connected to the first drive wheel on one side; the inkjet assembly is fixedly installed on one side of the transport frame, and the inkjet terminal of the inkjet assembly faces the first drive belt. The present application sets up a product transport line for inkjet coding and unloading, and the sphere is transferred by the second transfer assembly and placed on the product transport line, and unloaded toward one side by the product transport line, and the inkjet coding process is completed during transportation.

[0014] Specifically, the workbench is also provided with a control component, which includes a control switch, a control cabinet and an alarm light; the control switch is installed at the loading station, the control cabinet is installed at the bottom of the workbench, and it is provided with a controller; the first transfer component, the second transfer component, the vacuum component and the unloading component are electrically connected to the controller respectively; the control switch and the alarm light are electrically connected to the controller respectively. The present application improves the automation of the equipment by setting a control component to control the operation of each component, and controlling the start and stop of the equipment through the control switch.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The present application provides a first transfer assembly and a second transfer assembly on the workbench for transferring the sphere; wherein the first transfer assembly is installed between the loading station and the vacuum station, and the air needle is installed on the first transfer assembly for loading the sphere at the loading station, and the sphere is transferred by the first transfer assembly to the extrusion exhaust mechanism for vacuum shaping, while the second transfer assembly is arranged between the vacuum station and the unloading station, and is provided with a clamping unit for clamping the vacuumed sphere and transferring it to the unloading station for coding and unloading. The present application uses two transfer assemblies for coordinated production at each processing station, so that each processing step can be carried out simultaneously, and the production efficiency is high.

[0017] 2. Based on the above, the present application sets the number of the first transfer assembly, the second transfer assembly's gripping unit and the extrusion exhaust assembly to multiple, and the three correspond to each other, so as to realize a multi-station sphere vacuum shaping production line, so as to increase the sphere processing volume per unit time and improve production efficiency. At the same time, the number of processing stations can be adjusted according to production requirements, and the equipment has a wide range of applications.

[0018] 3. On the basis of the above, the mounting frame of the first transfer assembly of the present application is rotatably mounted on the workbench, and a plurality of mounting plates are arranged on the mounting frame at intervals along the circumferential direction, so that the air needle on the mounting plate is driven in turn to transfer the ball between the loading station and the extrusion exhaust assembly through the rotation of the mounting frame. This allows loading and vacuum shaping to be carried out simultaneously, improving the time coordination between various processing procedures and improving production efficiency.

[0019] 4. On the basis of the foregoing, the present application takes into account that the sphere is inserted on the air needle. In order to facilitate the clamping unit of the second transfer assembly to remove the sphere from the air needle, a radial cylinder is provided to drive the clamping unit to remove the sphere from the air needle, so that the air needle and the sphere are not damaged, thereby improving the yield.

[0020] 5. Based on the above, the present application provides a first driving belt to feed the placed sphere toward the coding station side, thereby achieving coding on the sphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the multi-station spherical vacuum shaping equipment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the first transplanting component and the vacuuming component of the multi-station spherical vacuum shaping equipment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the blanking assembly of the multi-station spherical vacuum shaping equipment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the second transfer assembly of the multi-station spherical vacuum shaping equipment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a single first transfer component of the multi-station spherical vacuum shaping equipment of the utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0027] See also Figure 1-5A multi-station sphere vacuum shaping equipment comprises a workbench 1, a vacuum assembly 2 and a blanking assembly 3, the workbench 1 is provided with a first transfer assembly 4 and a second transfer assembly 5; the vacuum assembly 2 and the blanking assembly 3 are installed on the workbench to constitute a vacuum station and a blanking station; the first transfer assembly 4 is provided with air needles at intervals; the vacuum assembly 2 comprises a vacuum unit and an extrusion exhaust assembly 6; the blanking assembly 1 is provided with a coding assembly 7; the air needles 13 are respectively connected with the vacuum units; the sphere 8 is placed on the air needle at the loading station 13 and is transferred by the first transfer assembly to the extrusion exhaust assembly for vacuuming and extrusion shaping; the second transfer assembly is provided with a clamping unit 9, the clamping unit clamps the vacuumed and extruded sphere and is transferred by the second transfer assembly to the blanking station for coding and blanking. The vacuum unit of this embodiment includes a vacuum air pipe (not shown) and a vacuum negative pressure pump (not shown); one end of the vacuum air pipe is connected to the air needle, and the other end is connected to the vacuum negative pressure pump; the extrusion exhaust component 6 includes a mounting tube 60, a plurality of extrusion blocks 61 and an extrusion cylinder; a plurality of extrusion blocks are installed in the mounting tube 60 at intervals to form an extrusion cavity, and one end of the extrusion blocks is respectively connected to the power end of the extrusion cylinder.

[0028] The number of the first transfer assembly 4, the clamping unit 9 and the extrusion exhaust assembly 6 of the second transfer assembly of this embodiment are all six, and each of the first transfer assembly, the clamping unit and the extrusion exhaust assembly is installed on the workbench in a one-to-one correspondence and interval; an isolation net 10 is provided on the workbench between the loading station and the first transfer assembly. Among them, the first transfer assembly 4 includes a mounting frame 40, a first driving cylinder 41 and a second driving cylinder 42; the mounting frame 40 is movably installed on the workbench 1, the first driving cylinder 41 is installed on the workbench, and its power end is fixedly connected to the mounting frame; the second driving cylinder 42 is fixedly installed on the mounting frame, and an air needle is installed at the end of its power end; two mounting plates 43 are provided at intervals along the circumferential direction at one end of the mounting frame away from the first driving cylinder; the second driving cylinder is fixedly installed on each mounting plate; the mounting frame is driven by the power of the first driving cylinder to perform circular rotation along the horizontal direction; the air needle is driven by the power of the second driving cylinder to perform reciprocating linear motion along the radial direction.

[0029] The six clamping units 9 of this embodiment are divided into a group of three adjacent ones, forming two groups of transfer components; a transfer component mounting frame 90 is installed on the workbench; the transfer component mounting frame is provided with two sliding plates 91 and a transfer motor 92; the sliding plates 91, the transfer components and the transfer motor 92 are arranged in a one-to-one correspondence; the sliding plate 91 is slidably installed on the transfer component mounting frame 90, and the transfer motor 92 is fixedly installed on the transfer mounting frame, and its power end is connected to the sliding plate; the sliding plate 91 is provided with a clamping unit mounting frame 93 and a radial cylinder 94; the radial cylinder 94 is fixedly installed on the sliding plate 91, and its power end is fixedly connected to the clamping unit mounting frame 93; three clamping units 9 are installed on the clamping unit mounting frame 93 at intervals. The clamping unit 9 of this embodiment includes a clamping cylinder 95, two clamps 96 and a third driving cylinder 97; the third driving cylinder 97 is a rotating cylinder, which is fixedly mounted on the clamping unit mounting frame 93, and its power end is fixedly connected to the clamping cylinder; the power end of the clamping cylinder is connected to the two clamps.

[0030] In addition, the unloading component 3 of the present embodiment is provided with a product transport line to constitute an unloading station; the product transport line includes a transport frame 30, a first drive wheel 31, a first drive belt 32 and a first drive motor 33; the first drive wheels are rotatably installed on both sides of the transport frame, and two first drive belts are provided on the first drive wheels on both sides of the transport frame, and the two first drive belts are arranged in parallel with each other, leaving an installation cavity between them; the first drive motor 33 is fixedly installed on the transport frame, and its power end is connected to the first drive wheel on one side; the inkjet component 7 is fixedly installed on one side of the transport frame, and the inkjet terminal of the inkjet component faces the first drive belt.

[0031] A control component is also provided on the workbench of the present embodiment, and the control component includes a control switch 11, a control cabinet and an alarm light 12; the control switch 11 is installed at the loading station, and the control cabinet is installed at the bottom of the workbench, and it is provided with a controller; the first transfer component, the second transfer component, the vacuum component and the unloading component are electrically connected to the controller respectively; the control switch 11 and the alarm light 12 are electrically connected to the controller respectively.

[0032] Working principle: When the multi-station sphere vacuum shaping equipment of this embodiment is in use, a sphere placement rack is set at the loading station, and the operator manually inserts the sphere into the air needle on the mounting plate on one side of the first transfer assembly for loading. When the sphere loading of all stations is completed, the operator starts the control switch. First, the first driving cylinder is started to drive the mounting frame to rotate, driving the loaded air needle to move to the upper side of the mounting cylinder, and the mounting plate on the other side of the mounting frame moves to the loading station. At this time, the operator can perform the loading process. At the same time, the second driving cylinder is started to drive the air needle at the power end to move toward the extrusion chamber of the mounting cylinder, and the sphere is sent into the extrusion chamber, and then the vacuuming and extrusion shaping process begins. At the same time, the transfer motor of the second transfer assembly is started, driving the sliding plate to slide toward the mounting cylinder, driving the clamping unit to move to the side of the mounting cylinder. After the sphere is vacuumed and shaped, the second driving cylinder drives the sphere out of the extrusion chamber. At this time, the clamping cylinder starts to drive the clamp to clamp the sphere. Then the radial cylinder starts to drive the clamping unit mounting frame to move radially downward, driving the clamping cylinder to pull the sphere out of the air needle. Then the transfer motor starts the sliding plate to slide toward the unloading station, driving the sphere to move to the upper side of the product transportation line. What is important here is that when the second transfer assembly is transferred toward the unloading station, the mounting frame can be rotated to drive the mounting plate that has been loaded again to move to the upper side of the mounting cylinder to prepare for the second group of sphere vacuuming and shaping process, and the unloaded air needle is transferred to the loading station again, and loading can continue, and so on and so forth, which will not be repeated here.

[0033] When the vacuumed ball is transferred to the upper side of the product transport line, the third drive cylinder starts, driving the gripping cylinder to rotate and flip, flipping the vertical ball to a horizontal position, and then the ball is released by the gripping cylinder, and the ball falls onto the first drive belt of the product transport line. Then the first drive motor starts, driving the first drive wheel to rotate, driving the first drive belt to transfer the ball to the inkjet assembly on one side, and the inkjet terminal performs the coding. After the coding is completed, the finished ball enters the finished product collector from one side of the transport rack.

[0034] The implementation methods of the utility model are described in detail above in conjunction with the embodiments, but the utility model is not limited to the above-mentioned implementation methods. For ordinary technicians in this technical field, after knowing the contents recorded in the utility model, they can make several equivalent changes and substitutions thereto without departing from the principle of the utility model. These equivalent changes and substitutions should also be regarded as belonging to the protection scope of the utility model.

Claims

1. A multi-station spherical vacuum shaping equipment, comprising a workbench, a vacuum assembly and a blanking assembly, characterized in that: The workbench is provided with a first transfer assembly and a second transfer assembly; the vacuum assembly and the unloading assembly are installed on the workbench to form a vacuum station and an unloading station; air needles are arranged at intervals on the first transfer assembly; the vacuum assembly includes a vacuum unit and an extrusion exhaust assembly; the unloading assembly is provided with a coding assembly; the air needles are respectively connected to the vacuum units; the sphere is placed on the air needle at the loading station and transferred by the first transfer assembly to the extrusion exhaust assembly for vacuuming and extrusion shaping; the second transfer assembly is provided with a clamping unit, the clamping unit clamps the vacuumed and extruded sphere and transfers it to the unloading station by the second transfer assembly for coding and unloading.

2. The multi-station spherical vacuum shaping equipment according to claim 1, characterized in that: The first transfer assembly and the second transfer assembly each have a plurality of clamping units and extrusion exhaust assemblies, and each first transfer assembly, clamping unit and extrusion exhaust assembly is installed on the workbench in a one-to-one correspondence and interval; an isolation net is provided on the workbench between the loading station and the first transfer assembly.

3. The multi-station spherical vacuum shaping equipment according to claim 2 is characterized in that: The first transfer assembly includes a mounting frame, a first driving cylinder and a second driving cylinder; the mounting frame is movably mounted on the workbench, the first driving cylinder is mounted on the workbench, and its power end is fixedly connected to the mounting frame; the second driving cylinder is fixedly mounted on the mounting frame, and an air needle is installed at the end of its power end; the mounting frame is driven by the power of the first driving cylinder to drive the second driving cylinder to move toward the extrusion exhaust assembly in the first direction; the air needle is driven by the power of the second driving cylinder to drive the ball to move along the second direction toward the extrusion cavity of the extrusion exhaust assembly.

4. The multi-station spherical vacuum shaping equipment according to claim 3 is characterized in that: A plurality of mounting plates are provided at intervals in the circumferential direction at one end of the mounting frame away from the first driving cylinder; the second driving cylinder is fixedly mounted on each mounting plate; the mounting frame is driven by the power of the first driving cylinder to perform circular rotational motion in the horizontal direction; the air needle is driven by the power of the second driving cylinder to perform reciprocating linear motion in the radial direction.

5. The multi-station spherical vacuum shaping equipment according to claim 1, characterized in that: The vacuum unit includes a vacuum air pipe and a vacuum negative pressure pump; one end of the vacuum air pipe is connected to the air needle, and the other end is connected to the vacuum negative pressure pump; the extrusion exhaust assembly includes a mounting tube, a plurality of extrusion blocks and an extrusion cylinder; the plurality of extrusion blocks are installed in the mounting tube at intervals to form an extrusion cavity, and one end of the extrusion blocks is respectively connected to the power end of the extrusion cylinder.

6. The multi-station spherical vacuum shaping equipment according to claim 2, characterized in that: A plurality of clamping units are grouped together according to a number of adjacent ones to form a plurality of groups of transfer components; a transfer component mounting frame is installed on the workbench; the transfer component mounting frame is provided with a plurality of sliding plates and transfer motors; the sliding plates, transfer components and transfer motors are arranged in a one-to-one correspondence; the sliding plate is slidably mounted on the transfer component mounting frame, the transfer motor is fixedly mounted on the transfer mounting frame, and its power end is connected to the sliding plate; the sliding plate is provided with a clamping unit mounting frame and a radial cylinder; the radial cylinder is fixedly mounted on the sliding plate, and its power end is fixedly connected to the clamping unit mounting frame; clamping units are installed on the clamping unit mounting frame at intervals.

7. The multi-station spherical vacuum shaping equipment according to claim 6, characterized in that: The clamping unit includes a clamping cylinder, two clamps and a third driving cylinder; the third driving cylinder is a rotating cylinder, which is fixedly mounted on the clamping unit mounting frame, and its power end is fixedly connected to the clamping cylinder; the power end of the clamping cylinder is connected to the two clamps.

8. The multi-station spherical vacuum shaping equipment according to claim 1, characterized in that: The unloading assembly is provided with a product transport line to constitute an unloading station; the product transport line comprises a transport frame, a first driving wheel, a first driving belt and a first driving motor; first driving wheels are rotatably mounted on both sides of the transport frame, and two first driving belts are sleeved on the first driving wheels on both sides of the transport frame, and the two first driving belts are relatively parallelly arranged with an installation cavity left therebetween; the first driving motor is fixedly mounted on the transport frame, and a power end thereof is connected to the first driving wheel on one side; the inkjet assembly is fixedly mounted on one side of the transport frame, and the inkjet terminal of the inkjet assembly faces the first driving belt.

9. The multi-station spherical vacuum shaping equipment according to claim 1, characterized in that: The workbench is also provided with a control component, which includes a control switch, a control cabinet and an alarm light; the control switch is installed at the loading station, the control cabinet is installed at the bottom of the workbench, and it is provided with a controller; the first transfer component, the second transfer component, the vacuum component and the unloading component are electrically connected to the controller respectively; the control switch and the alarm light are electrically connected to the controller respectively.

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