In-mold labeling and forming device for PP plastic bucket machining and machining method of in-mold labeling and forming device

Abstract

The invention discloses an in-mold labeling forming device for PP plastic bucket machining and a machining method thereof, and relates to the field of plastic bucket machining, the in-mold labeling forming device comprises a bottom plate, the left portion of the top end of the bottom plate is fixedly connected with a conveying device body, the outer wall of the conveying device body is in lap joint with a plastic bucket, and the four corners of the top end of the bottom plate are fixedly connected with supporting legs; the top ends of the supporting legs are fixedly connected with a supporting plate. According to the in-mold labeling forming device for PP plastic bucket machining and the machining method of the in-mold labeling forming device, a first electrostatic gun head and a first air nozzle are fixedly connected to an inner cavity of the cylinder to adsorb a label, so that the label is smoothly adsorbed to the outer wall of the cylinder, and then the whole cylinder gradually penetrates through the inner wall of a label electrostatic leveling lantern ring; and the label static leveling lantern ring smooths the label adsorbed on the outer wall of the cylinder again, so that when the label enters the cavity, the flatness of the label is improved, and the labeling forming quality of the plastic barrel is improved.

Description

Technical Field

[0001] The invention relates to the field of plastic barrel processing, and in particular to an in-mold labeling forming device for processing a PP plastic barrel and a processing method thereof. Background Art

[0002] Plastic barrels are mostly made of polyethylene, polypropylene and other plastics by blow molding and injection molding. They are the outer packaging of liquid and solid items in the chemical, pesticide, pharmaceutical, food, hardware and electronics, electromechanical and other industries. Plastic barrels need to be labeled on the outside.

[0003] The existing technology has the following problems:

[0004] The prior art has a low working efficiency when labeling plastic barrels, and it is inconvenient to put the label into the injection mold before injection molding the plastic barrel, which reduces the practicality of the device. At the same time, when the prior art is molding and labeling the plastic barrel at the same time, the labeling stability is poor, resulting in poor quality after labeling, which reduces the practicality of the device. At the same time, the prior art is inconvenient when taking out the formed plastic barrel. During the process of taking down the plastic barrel, the shaking of the plastic barrel may cause it to fall, which reduces the practicality of the device. Summary of the invention

[0005] The present invention provides an in-mold labeling forming device for processing a PP plastic barrel and a processing method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An in-mold labeling forming device for processing PP plastic barrels, comprising a bottom plate, a transmission device body is fixedly connected to the left portion of the top of the bottom plate, a plastic barrel is overlapped on the outer wall of the transmission device body, four corners of the top of the bottom plate are fixedly connected to support legs, the tops of the support legs are fixedly connected to support plates, the outer wall of the support plate is fixedly connected to a support frame, the rear portion of the bottom end of the support frame is fixedly connected to a connecting frame, the bottom of the connecting frame is fixedly connected to a label electrostatic flattening ring, the left portion of the support plate is fixedly connected to a connecting plate, the middle portion of the support plate is fixedly connected to a pick-and-place mechanism, the front portion of the top of the support frame is fixedly connected to a barrel taking mechanism, the rear portion of the top of the support frame is fixedly connected to an auxiliary mechanism, and the right portion of the top of the support plate is fixedly connected to a forming mechanism;

[0008] The picking and placing mechanism includes an electric slide rail 1, one end of which is fixedly connected to the left part of the support plate; the barrel taking mechanism includes a telescopic cylinder 1, the bottom end of which is fixedly connected to the left part of the top end of the support frame; the auxiliary mechanism includes a telescopic cylinder 2, the bottom end of which is fixedly connected to the rear part of the top end of the support frame; the forming mechanism includes an electric slide rail 3, the bottom end of which is fixedly connected to the right part of the top end of the support plate.

[0009] Preferably: the outer wall of the electric slide rail 1 is slidably connected to a connecting arm, the right part of the connecting arm is fixedly connected to a mounting plate, the top of the mounting plate is fixedly connected to a distance controller, the right end of the mounting plate is fixedly connected to the electric slide rail 2, the outer wall of the electric slide rail 2 is slidably connected to a fixing plate, the front end of the fixing plate is fixedly connected to a pneumatic suction cup 1, and the rear end of the fixing plate is fixedly connected to a chuck.

[0010] Preferably, a cylinder is clamped on the outer wall of the chuck, an electrostatic gun head is fixedly connected to the inner cavity of the cylinder, and an air jet nozzle is fixedly connected to the inner cavity of the cylinder.

[0011] Preferably: the output end of the telescopic cylinder is fixedly connected to an electric telescopic rod, the bottom end of the electric telescopic rod is fixedly connected to a guide block, the outer wall of the guide block is slidably connected to the inner wall of the support frame, and the outer wall of the output end of the electric telescopic rod is slidably connected to the inner wall of the support frame.

[0012] Preferably: the output end of the electric telescopic rod is fixedly connected to a motor, the output end of the motor is fixedly connected to a connecting rod, the outer wall of the connecting rod is rotatably connected to the bottom of the output end of the electric telescopic rod, and the rear end of the connecting rod is fixedly connected to a pneumatic suction cup 2.

[0013] Preferably, the output end of the second telescopic cylinder passes through the outer wall of the support frame and is fixedly connected with an electrostatic suction cup, a label is adsorbed on the bottom end of the electrostatic suction cup, and the electrostatic suction cup is located directly above the connecting plate.

[0014] Preferably: the outer wall of the electric slide rail three is slidably connected to an injection male mold, the rear end of the injection male mold is fixedly connected to a punch, the inner wall of the punch is fixedly connected to a plurality of injection ports, the rear part of the electric slide rail three is overlapped with an injection female mold, the bottom end of the injection female mold is fixedly connected to the top end of the support plate, a cavity is opened in the middle of the injection female mold, the inner wall of the injection female mold is fixedly connected to an air nozzle in a circular array, and the inner wall of the injection female mold is fixedly connected to an electrostatic gun head 2 in a circular array.

[0015] A method for in-mold labeling of PP plastic barrels, comprising the following steps:

[0016] Step 1: Set the initial position of the pick-and-place mechanism, and then put the label to be attached to the plastic barrel on the cylinder through the cooperation of the pick-and-place mechanism and the auxiliary mechanism, so as to facilitate the subsequent labeling;

[0017] Step 2: The pick-and-place mechanism delivers the label into the cavity, and then the pick-and-place mechanism removes the processed plastic barrel from the punch;

[0018] Step 3: After the pick-and-place mechanism completes all operations in step 2, it returns to its initial position and proceeds to the next step;

[0019] Step 4: After the pick-and-place mechanism is reset, the molding mechanism performs the next injection molding. At the same time, the barrel taking mechanism removes the molded plastic barrel on the pick-and-place mechanism. Then the auxiliary mechanism places the label on the cylinder to start the next round of operation.

[0020] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0021] 1. The present invention provides an in-mold labeling forming device for PP plastic barrel processing and a processing method thereof. The device operates through an electric slide rail 2, so that a fixed plate slides on the outer wall of the electric slide rail 2, and a chuck drives a cylinder to move backward, so that the cylinder moves to the bottom of the label. Then the label can be placed on the cylinder, and then the cylinder is inserted into the cavity, so that the label is sent into the cavity, and the air nozzle and the electrostatic gun head adsorb the label, so that the label is adsorbed on the inner wall of the cavity, which is convenient for subsequent processing and has the effect of accelerating work efficiency.

[0022] 2. The present invention provides an in-mold labeling forming device for PP plastic barrel processing and a processing method thereof, wherein an electrostatic gun head and an air nozzle are fixedly connected to the inner cavity of a cylinder to adsorb the label so that the label is smoothly adsorbed on the outer wall of the cylinder, and then the entire cylinder is gradually passed through the inner wall of the label electrostatic smoothing ring, and the label electrostatic smoothing ring smoothes the adsorbed label on the outer wall of the cylinder again, thereby, when the label enters the cavity, it is lifted.

[0023] 3. The present invention provides an in-mold labeling forming device for PP plastic barrel processing and a processing method thereof, wherein a telescopic cylinder 1 drives an electric telescopic rod to slide on the top end of a support frame, so that the electric telescopic rod drives a guide block to slide on the inner wall of the support frame, so that the electric telescopic rod drives a connecting rod and a pneumatic suction cup 2 to enter the cavity of the plastic barrel, so that the pneumatic suction cup 2 contacts the rear cavity of the plastic barrel and adsorbs the plastic barrel, and at the same time, the pneumatic suction cup 1 cancels the adsorption of the plastic barrel, and then the fixed plate is reset, at this time, the motor drives the connecting rod to rotate, so that the connecting rod drives the pneumatic suction cup 2 and the plastic barrel to rotate, so that the bottom end of the plastic barrel faces the transmission device body, and then the electric telescopic rod drives the connecting rod to move downward, so that the plastic barrel falls onto the transmission device body, thereby achieving the effect of removing the formed plastic barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the pick-and-place mechanism of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the barrel taking mechanism and the auxiliary mechanism of the present invention;

[0028] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0029] Figure 6 It is a structural schematic diagram of the forming mechanism of the present invention;

[0030] Figure 7 It is a schematic diagram of the process of the processing method of the present invention.

[0031] In the figure: 1, bottom plate; 11, transmission device body; 12, plastic barrel; 13, support leg; 14, support plate; 15, support frame; 16, connecting frame; 17, label electrostatic leveling ring; 18, connecting plate; 2, pick-and-place mechanism; 21, electric slide rail 1; 22, connecting arm; 23, mounting plate; 24, distance controller; 25, electric slide rail 2; 26, fixing plate; 261, pneumatic suction cup 1; 262, chuck; 27, cylinder; 28, electrostatic gun head 1 ; 29. ​​Air jet one; 3. Bucket taking mechanism; 31. Telescopic cylinder one; 32. Electric telescopic rod; 33. Guide block; 34. Motor; 35. Connecting rod; 36. Pneumatic suction cup two; 4. Auxiliary mechanism; 41. Telescopic cylinder two; 42. Electrostatic suction cup; 43. Label; 5. Molding mechanism; 51. Electric slide rail three; 52. Injection male mold; 53. Punch; 54. Injection port; 55. Injection female mold; 56. Cavity; 57. Air jet; 58. Electrostatic gun tip two. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] like Figure 1-Figure 6As shown, an in-mold labeling forming device for processing PP plastic barrels includes a bottom plate 1, a transmission device body 11 is fixedly connected to the left portion of the top of the bottom plate 1, a plastic barrel 12 is overlapped on the outer wall of the transmission device body 11, four corners of the top of the bottom plate 1 are fixedly connected to support legs 13, the top of the support legs 13 is fixedly connected to a support plate 14, the outer wall of the support plate 14 is fixedly connected to a support frame 15, the rear portion of the bottom end of the support frame 15 is fixedly connected to a connecting frame 16, the bottom of the connecting frame 16 is fixedly connected to a label electrostatic leveling ring 17, the left portion of the support plate 14 is fixedly connected to a connecting plate 18, the middle portion of the support plate 14 is fixedly connected to a pick-up and place mechanism 2, the top of the support frame 15 is fixedly connected to a connecting plate 18, the middle portion of the support plate 14 is fixedly connected to a pick-up and place mechanism 2, and the top of the support frame 15 is fixedly connected to a connecting plate 18. The front part of the end is fixedly connected with a barrel taking mechanism 3, the rear part of the top of the support frame 15 is fixedly connected with an auxiliary mechanism 4, and the right part of the top of the support plate 14 is fixedly connected with a molding mechanism 5; the picking and placing mechanism 2 includes an electric slide rail 21, one end of which is fixedly connected to the left part of the support plate 14, the barrel taking mechanism 3 includes a telescopic cylinder 31, the fixed end of which is fixedly connected to the left part of the top of the support frame 15, the auxiliary mechanism 4 includes a telescopic cylinder 2 41, the fixed end of which is fixedly connected to the rear part of the top of the support frame 15, and the molding mechanism 5 includes an electric slide rail 3 51, and the fixed end of which is fixedly connected to the right part of the top of the support plate 14.

[0034] Through the cooperation between the auxiliary mechanism 4 and the pick-and-place mechanism 2, the label is placed in the molding mechanism 5. At the same time, the pick-and-place mechanism 2 removes the formed plastic barrel 12 from the molding mechanism 5. Then, the barrel taking mechanism 3 removes the processed plastic barrel from the pick-and-place mechanism 2 and places it on the transmission device body.

[0035] like Figure 2 , Figure 3 As shown, the outer wall of the electric slide rail 21 is slidably connected to a connecting arm 22, the right part of the connecting arm 22 is fixedly connected to a mounting plate 23, the top of the mounting plate 23 is fixedly connected to a distance controller 24, the right end of the mounting plate 23 is fixedly connected to an electric slide rail 25, the outer wall of the electric slide rail 25 is slidably connected to a fixing plate 26, the front end of the fixing plate 26 is fixedly connected to a pneumatic suction cup 261, and the rear end of the fixing plate 26 is fixedly connected to a chuck 262.

[0036] The electric slide rail 25 is operated to make the fixed plate 26 slide on the outer wall of the electric slide rail 25, so that the chuck 262 drives the cylinder 27 to move backward, so that the cylinder 27 moves to the bottom of the label 43, and then the label 43 can be placed on the cylinder 27, and then the cylinder 27 is inserted into the cavity 56 to send the label 43 into the cavity. At the same time, the fixed plate 26 slides forward on the outer wall of the electric slide rail 25 first, so that the front end of the pneumatic suction cup 1 261 contacts the bottom end of the molded plastic barrel 12 on the outer wall of the punch 53, and adsorbs the plastic barrel 12, thereby completing the pick-and-place operation, speeding up the work efficiency, and achieving the effect of speeding up the work efficiency.

[0037] like Figure 2 , Figure 3 As shown, the outer wall of the chuck 262 is clamped with a cylinder 27, the inner cavity of the cylinder 27 is fixedly connected with an electrostatic gun head 28, and the inner cavity of the cylinder 27 is fixedly connected with an air nozzle 29.

[0038] When the label 43 falls onto the outer wall of the cylinder 27 , an electrostatic gun head 28 and an air nozzle 29 are fixedly connected to the inner cavity of the cylinder 27 to adsorb the label 43 , so that the label 43 is smoothly adsorbed onto the outer wall of the cylinder 27 .

[0039] like Figure 2 , Figure 4 As shown, the output end of the telescopic cylinder 31 is fixedly connected to the electric telescopic rod 32, the bottom end of the electric telescopic rod 32 is fixedly connected to the guide block 33, the outer wall of the guide block 33 is slidably connected to the inner wall of the support frame 15, the outer wall of the output end of the electric telescopic rod 32 is slidably connected to the inner wall of the support frame 15, the output end of the electric telescopic rod 32 is fixedly connected to the motor 34, the output end of the motor 34 is fixedly connected to the connecting rod 35, the outer wall of the connecting rod 35 is rotatably connected to the bottom of the output end of the electric telescopic rod 32, and the rear end of the connecting rod 35 is fixedly connected to the pneumatic suction cup 2 36.

[0040] The electric telescopic rod 32 is driven by the telescopic cylinder 131 to slide on the top of the support frame 15, so that the electric telescopic rod 32 drives the guide block 33 to slide on the inner wall of the support frame 15, so that the electric telescopic rod 32 drives the connecting rod 35 and the pneumatic suction cup 2 36 to enter the cavity of the plastic barrel 12, so that the pneumatic suction cup 2 36 contacts the back cavity of the plastic barrel 12 and adsorbs the plastic barrel 12. At the same time, the pneumatic suction cup 1 261 cancels the adsorption of the plastic barrel 12, and then the fixed plate 26 is reset. At this time, the motor 34 drives the connecting rod 35 to rotate, so that the connecting rod 35 drives the pneumatic suction cup 2 36 and the plastic barrel 12 to rotate, so that the bottom end of the plastic barrel 12 faces the transmission device body 11, and then the electric telescopic rod 32 drives the connecting rod 35 to move downward, so that the plastic barrel 12 falls on the transmission device body 11, thereby achieving the effect of removing the formed plastic barrel 12.

[0041] like Figure 2 , Figure 4 As shown, the output end of the telescopic cylinder 41 passes through the outer wall of the support frame 15 and is fixedly connected to an electrostatic suction cup 42 , a label 43 is adsorbed on the bottom end of the electrostatic suction cup 42 , and the electrostatic suction cup 42 is located directly above the connecting plate 18 .

[0042] The electrostatic suction cup 42 is driven downward by the telescopic cylinder 41 to move close to the connecting plate 18, so as to absorb the label 43 placed on the connecting plate 18, so as to facilitate the next operation.

[0043] like Figure 2 , Figure 6 As shown, the outer wall of the electric slide rail three 51 is slidably connected to the injection male mold 52, the rear end of the injection male mold 52 is fixedly connected to the punch 53, the inner wall of the punch 53 is fixedly connected to a plurality of injection ports 54, the rear part of the electric slide rail three 51 is overlapped with the injection female mold 55, the bottom end of the injection female mold 55 is fixedly connected to the top of the support plate 14, a cavity 56 is opened in the middle of the injection female mold 55, the inner wall of the injection female mold 55 is fixedly connected to the air nozzle 57 in a circular array, and the inner wall of the injection female mold 55 is fixedly connected to the electrostatic gun head 2 58 in a circular array.

[0044] When the label 43 enters the cavity 56, the air nozzle 57 and the electrostatic gun head 58 start working, thereby adsorbing the label 43 on the inner wall of the cavity 56, thereby placing the label in the cavity 56, and then the injection male mold 52 and the injection female mold 55 are molded together. After the mold is closed, injection molding is carried out from the injection port 54, and the injected plastic fills the barrel-shaped cavity formed between the punch 53 and the cavity 56, and then is injection molded into a plastic barrel 12 with a label. The injection molding is completed, and the effect of injection molding is achieved.

[0045] like Figure 7 As shown, a method for in-mold labeling of a PP plastic barrel comprises the following steps:

[0046] Step 1: Set the initial position of the pick-and-place mechanism 2, and then put the label 43 to be attached to the plastic barrel on the cylinder 27 through the cooperation of the pick-and-place mechanism 2 and the auxiliary mechanism 4, so as to facilitate the subsequent placement of the label 43;

[0047] Step 2: The pick-and-place mechanism 2 delivers the label 43 into the mold cavity 56, and then the pick-and-place mechanism 2 removes the processed plastic barrel 12 from the punch 53;

[0048] Step 3: After the pick-and-place mechanism 2 completes all operations in step 2, it returns to its initial position and proceeds to the next step;

[0049] Step 4: After the pick-up and placement mechanism 2 is reset, the molding mechanism 5 performs the next injection molding, and at the same time, the barrel taking mechanism 3 removes the molded plastic barrel 12 on the pick-up and placement mechanism 2, and then the auxiliary mechanism 4 places the label 43 on the cylinder 27, thereby starting the next round of operation.

[0050] The working principle of the present invention is as follows: during operation, an instruction is issued through an external controller to make the electric slide rail 25 work, so that the fixed plate 26 slides on the outer wall of the electric slide rail 25, so that the chuck 262 drives the cylinder 27 to move backward, so that the cylinder 27 moves to the bottom of the label 43, and then the telescopic cylinder 241 drives the electrostatic suction cup 42 to move downward, so that the label 43 contacts the outer wall of the cylinder 27, and then the electrostatic suction cup 42 cancels the adsorption of the label 43, so that the label 43 falls to the outer wall of the cylinder 27. At the same time, the electrostatic gun head 28 and the air nozzle 29 are fixedly connected to the inner cavity of the cylinder 27 to adsorb the label 43, so that the label 43 is smoothly adsorbed on the outer wall of the cylinder 27, and then the fixed plate 26 drives the cylinder 27 to reset. After the cylinder 27 is reset, the telescopic cylinder 241 drives the electrostatic suction cup 42 to move downward, so that the label 43 contacts the outer wall of the cylinder 27, and then the electrostatic suction cup 42 cancels the adsorption of the label 43, so that the label 43 falls to the outer wall of the cylinder 27. At the same time, the electrostatic gun head 28 and the air nozzle 29 are fixedly connected to the inner cavity of the cylinder 27 to adsorb the label 43, so that the label 43 is smoothly adsorbed on the outer wall of the cylinder 27. The second shrink cylinder 41 drives the electrostatic suction cup 42 to move downward, so that the electrostatic suction cup 42 is close to the connecting plate 18, and the label 43 placed on the connecting plate 18 is adsorbed to facilitate the next operation. Then the connecting arm 22 slides on the outer wall of the electric slide rail 1 21 to move the cylinder 27 to the label electrostatic flattening ring 17, and the cylinder 27 is gradually passed through the inner wall of the label electrostatic flattening ring 17 as a whole. The label 43 adsorbed on the outer wall of the cylinder 27 is smoothed again by the label electrostatic flattening ring 17, and then the cylinder 27 can be reset, and the connecting arm 22 drives the cylinder 27 to continue to move toward the injection mold 55. When the center of the cylinder 27 is located at the center of the cavity 56, the electric slide rail 1 21 stops working, and then the fixed plate 26 is on the outer wall of the electric slide rail 25 First, slide forward to make the front end of the pneumatic suction cup 261 contact with the bottom end of the molded plastic barrel 12 on the outer wall of the punch 53, and adsorb the plastic barrel 12. Then, the fixed plate 26 moves backward to make the outer wall of the cylinder 27 enter the cavity 56. Then, the electrostatic gun head 28 and the air nozzle 29 stop working, and the air nozzle 57 and the electrostatic gun head 2 58 start working, thereby adsorbing the label 43 on the inner wall of the cavity 56, thereby placing the label in the cavity 56, which has the effect of placing the label. In this process, the distance controller 24 monitors and controls the distance of each step, and then the cylinder 27 is reset, and then the connecting arm 22 drives the already molded plastic barrel 12 back to the initial position, and at the same time, the injection male mold 52 and the injection female mold 55 are molded. After the mold is closed, , injection molding is performed from the injection molding port 54, and the injected plastic fills the barrel-shaped cavity formed between the punch 53 and the cavity 56, and then is injection molded into a plastic barrel 12 with a label. The injection molding is completed, and the effect of injection molding is achieved. The connecting arm 22 returns to the initial position, and slides forward on the outer wall of the electric slide rail 25 by the fixed plate 26, driving the pneumatic suction cup 1 261 and the plastic barrel 12 to move synchronously, and then the electric telescopic rod 32 is driven by the telescopic cylinder 1 31 to slide on the top of the support frame 15, so that the electric telescopic rod 32 drives the guide block 33 to slide on the inner wall of the support frame 15, so that the electric telescopic rod 32 drives the connecting rod 35 and the pneumatic suction cup 2 36 to enter the cavity of the plastic barrel 12, so that the pneumatic suction cup 2 36 contacts the back cavity of the plastic barrel 12 and adsorbs the plastic barrel 12,At the same time, the pneumatic suction cup 1 261 cancels the adsorption of the plastic barrel 12, and then the fixed plate 26 is reset. At this time, the motor 34 drives the connecting rod 35 to rotate, so that the connecting rod 35 drives the pneumatic suction cup 2 36 and the plastic barrel 12 to rotate, so that the bottom end of the plastic barrel 12 faces the transmission device body 11, and then the electric telescopic rod 32 drives the connecting rod 35 to move downward, so that the plastic barrel 12 falls on the transmission device body 11, which has the effect of removing the formed plastic barrel 12. When the plastic barrel 12 is separated from the pneumatic suction cup 1 261, the fixed plate 26 drives the cylinder 27 to move backward, so that the cylinder 27 is located directly below the label 43, so that the labeling operation can be performed again, thereby greatly improving the user experience.

[0051] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An in-mold labeling forming device for PP plastic barrel processing, comprising a bottom plate (1), characterized in that: The left portion of the top of the bottom plate (1) is fixedly connected to a transmission device body (11), the outer wall of the transmission device body (11) is overlapped with a plastic barrel (12), the four corners of the top of the bottom plate (1) are fixedly connected to support legs (13), the top of the support legs (13) is fixedly connected to a support plate (14), the outer wall of the support plate (14) is fixedly connected to a support frame (15), the rear portion of the bottom end of the support frame (15) is fixedly connected to a connecting frame (16), the bottom of the connecting frame (16) is fixedly connected to a label electrostatic leveling ring (17), the left portion of the support plate (14) is fixedly connected to a connecting plate (18), the middle portion of the support plate (14) is fixedly connected to a pick-and-place mechanism (2), the front portion of the top of the support frame (15) is fixedly connected to a barrel picking mechanism (3), the rear portion of the top of the support frame (15) is fixedly connected to an auxiliary mechanism (4), and the right portion of the top of the support plate (14) is fixedly connected to a molding mechanism (5); The taking and placing mechanism (2) comprises an electric slide rail (21), one end of which is fixedly connected to the left part of the support plate (14); the barrel taking mechanism (3) comprises a telescopic cylinder (31), the bottom end of which is fixedly connected to the left part of the top end of the support frame (15); the auxiliary mechanism (4) comprises a telescopic cylinder (41), the bottom end of which is fixedly connected to the rear part of the top end of the support frame (15); and the forming mechanism (5) comprises an electric slide rail (51), the bottom end of which is fixedly connected to the right part of the top end of the support plate (14).

2. The in-mold labeling forming device for PP plastic barrel processing according to claim 1 is characterized in that: The outer wall of the electric slide rail 1 (21) is slidably connected to a connecting arm (22), the right part of the connecting arm (22) is fixedly connected to a mounting plate (23), the top end of the mounting plate (23) is fixedly connected to a distance controller (24), the right end of the mounting plate (23) is fixedly connected to an electric slide rail 2 (25), the outer wall of the electric slide rail 2 (25) is slidably connected to a fixing plate (26), the front end of the fixing plate (26) is fixedly connected to a pneumatic suction cup 1 (261), and the rear end of the fixing plate (26) is fixedly connected to a chuck (262).

3. The in-mold labeling forming device for PP plastic barrel processing according to claim 2 is characterized in that: The outer wall of the chuck (262) is clamped with a cylinder (27), the inner cavity of the cylinder (27) is fixedly connected with an electrostatic gun head (28), and the inner cavity of the cylinder (27) is fixedly connected with an air nozzle (29).

4. The in-mold labeling forming device for PP plastic barrel processing according to claim 1 is characterized in that: The output end of the telescopic cylinder (31) is fixedly connected to an electric telescopic rod (32), the bottom end of the electric telescopic rod (32) is fixedly connected to a guide block (33), the outer wall of the guide block (33) is slidably connected to the inner wall of the support frame (15), and the outer wall of the output end of the electric telescopic rod (32) is slidably connected to the inner wall of the support frame (15).

5. The in-mold labeling forming device for PP plastic barrel processing according to claim 4 is characterized in that: The output end of the electric telescopic rod (32) is fixedly connected to a motor (34), the output end of the motor (34) is fixedly connected to a connecting rod (35), the outer wall of the connecting rod (35) is rotatably connected to the bottom of the output end of the electric telescopic rod (32), and the rear end of the connecting rod (35) is fixedly connected to a second pneumatic suction cup (36).

6. The in-mold labeling forming device for PP plastic barrel processing according to claim 1 is characterized in that: The output end of the second telescopic cylinder (41) passes through the outer wall of the support frame (15) and is fixedly connected to an electrostatic suction cup (42), a label (43) is adsorbed on the bottom end of the electrostatic suction cup (42), and the electrostatic suction cup (42) is located directly above the connecting plate (18).

7. The in-mold labeling forming device for PP plastic barrel processing according to claim 1 is characterized in that: The outer wall of the electric slide rail three (51) is slidably connected to an injection male mold (52), the rear end of the injection male mold (52) is fixedly connected to a male mold (53), the inner wall of the male mold (53) is fixedly connected to a plurality of injection ports (54), the rear part of the electric slide rail three (51) is overlapped with an injection female mold (55), the bottom end of the injection female mold (55) is fixedly connected to the top end of the support plate (14), a cavity (56) is provided in the middle of the injection female mold (55), the inner wall of the injection female mold (55) is fixedly connected to an air nozzle (57) in a circular array, and the inner wall of the injection female mold (55) is fixedly connected to an electrostatic gun head two (58) in a circular array.

8. A method for in-mold labeling of a PP plastic barrel, comprising the in-mold labeling forming device for PP plastic barrel according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Setting the initial position of the pick-and-place mechanism (2), and then placing the label (43) to be attached to the plastic barrel on the cylinder (27) through the cooperation of the pick-and-place mechanism (2) and the auxiliary mechanism (4), so as to facilitate the subsequent placement of the label (43); Step 2: The label (43) is fed into the mold cavity (56) by the pick-and-place mechanism (2), and then the plastic barrel (12) that has been processed and formed is removed from the male mold (53) by the pick-and-place mechanism (2); Step 3: After the pick-and-place mechanism (2) completes all operations in step 2, it returns to its initial position and proceeds to the next step; Step 4: After the pick-up and placement mechanism (2) is reset, the molding mechanism (5) performs the next injection molding, and at the same time, the barrel taking mechanism (3) removes the molded plastic barrel (12) on the pick-up and placement mechanism (2), and then the auxiliary mechanism (4) places the label (43) on the cylinder (27), thereby starting the next round of operation.

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