A capping device for milk powder cans

Abstract

The present invention relates to the field of canned capping, specifically a capping device for milk powder cans, comprising a base, and further comprising: a flexible intermittent conveying mechanism arranged on the base, the flexible intermittent conveying mechanism is used to intermittently convey the milk powder cans; a capping mechanism arranged on the flexible intermittent conveying mechanism, the flexible intermittent conveying mechanism drives the capping mechanism to buckle the cover body on the can body while conveying the milk powder cans; a cover-up mechanism arranged on the base, the flexible intermittent conveying mechanism drives the cover-up mechanism to place the cover body on the can body during the intermittent conveying of the milk powder cans, so that the cover body is buckled on the can body under the action of the capping mechanism. The capping device for milk powder cans achieves the purpose of flexibly conveying the milk powder cans, avoids the milk powder cans from shifting and deflecting during the conveying process due to excessive inertia force, or even tilting and sliding, ensures the stability and reliability of the milk powder can capping, and realizes automatic capping, saving time and effort.

Description

Technical Field

[0001] The invention relates to the field of canned capping, in particular to a capping device for a milk powder can. Background Art

[0002] After milk powder is canned, it is necessary to cap the milk powder cans. At present, when performing large-scale automatic capping operations, the sudden start and stop of the conveyor belt can easily cause the cans filled with milk powder to fall over due to inertia, thereby causing waste of milk powder and increasing working hours. In addition, when the milk powder can stays at the capping station, the inertia force can easily cause the cover to separate from the can body, resulting in capping failure. In view of this, we propose a capping device for milk powder cans. Summary of the invention

[0003] The purpose of the present invention is to provide a capping device for a milk powder can to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a capping device for a milk powder can, comprising a base, and also comprising:

[0004] A flexible intermittent conveying mechanism is arranged on the base, and the flexible intermittent conveying mechanism is used for intermittently conveying milk powder cans;

[0005] A capping mechanism is arranged on the flexible intermittent conveying mechanism, and the flexible intermittent conveying mechanism drives the capping mechanism to buckle the cap body onto the can body while conveying the milk powder can;

[0006] The upper cover mechanism is arranged on the base, and the flexible intermittent conveying mechanism drives the upper cover mechanism to place the cover body on the can body during the intermittent conveying of the milk powder can, so that the cover body is fastened on the can body under the action of the capping mechanism.

[0007] Preferably, the flexible intermittent conveying mechanism includes a conveyor belt assembly, which is arranged on a bracket, and the bracket is fixed on a base, two vertical poles are fixed on the base, and a guide frame is fixed on one of the vertical poles, a slide rod 1 is slidably connected in the guide frame, a slide rod 1 is fixed on the slide rod, a motor is fixed on the bracket, and the output shaft end of the motor is transmission-connected to the rotating shaft, and the rotating shaft is fixedly connected to the shaft frame, the shaft frame is fixed on the bracket, a rocker is fixed at one end of the rotating shaft, and a pressure rod is fixed at the end of the rocker away from the rotating shaft, the pressure rod and the rotating shaft are arranged parallel to each other, the pressure rod is inserted in the slide frame and can slide in the slide frame.

[0008] Preferably, a slide cylinder is fixed to the lower end of the slide frame, and a pressure cover mechanism is arranged on the side wall of the slide cylinder, a slide rod four passes through the lower end wall of the slide cylinder and is slidably connected, and a slide plate two and a tooth plate are respectively fixed to the upper and lower ends of the slide rod four, and the slide plate two is connected to the lower end of the slide cylinder through a spring four, and the teeth on the bottom surface of the tooth plate can be engaged with the tooth grooves on the surface of the conveyor belt in the conveyor belt assembly.

[0009] Preferably, the lower end of the slide passes through and is slidably connected to slide rod three, the upper and lower ends of slide rod three are respectively fixedly connected to the slider and slide plate one, slide plate one is slidably connected in the slide cylinder, and the bottom surface of slide plate one is connected to slide plate two through spring three, the slider is slidably connected in the slide, and the pressure rod can be in buckle contact with the slider.

[0010] Preferably, the cover pressing mechanism includes a cantilever fixed on the side wall of the slide cylinder, a slide rod five passes through the cantilever and is slidably connected, the upper and lower ends of the slide rod five are respectively fixedly connected to a bracket and a pressure plate, the bracket is connected to the cantilever through a spring five, the pressure rod can be in buckling contact with the bracket, and the pressure plate is used to press the cover body onto the tank body.

[0011] Preferably, the upper cover mechanism comprises a cross beam, two ends of which are respectively fixedly connected to the upper ends of the two uprights, and a groove is provided at the bottom of the cross beam, and two ends of the groove are arc-shaped structures.

[0012] Preferably, the upper cover mechanism also includes a reciprocating screw, one end of the reciprocating screw is coaxially fixedly connected to the rotating shaft, and the other end is fixedly rotatably connected to one of the vertical poles, the shaft frame and the vertical pole are respectively fixedly connected to touch switch 2 and touch switch 1, and a corresponding sliding sleeve is sleeved and slidably connected on the reciprocating screw, and the sliding sleeve can respectively engage and contact with touch switch 2 and touch switch 1.

[0013] Preferably, a connecting rod is fixed on the side wall of the sliding sleeve, and the connecting rod is slidably connected to the vertical rod, a sleeve is fixed on the connecting rod, a sliding rod 2 is inserted and slidably connected in the sleeve, a roller is rotatably connected to the upper end of the sliding rod 2, and the roller rolls in the groove, and the upper end of the sliding rod 2 is connected to the sleeve through a spring 1.

[0014] Preferably, a suction cup is fixed to the lower end of the second sliding rod, a vacuum pump is fixed on the base, and the vacuum pump is connected to the suction cup through an air pipe.

[0015] Preferably, a cover cylinder is fixed on the base, a support plate is slidably connected inside the cover cylinder, and the bottom surface of the support plate is connected to the base via spring 2.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, the milk powder cans are intermittently conveyed by a flexible intermittent conveying mechanism, and in the process, the capping mechanism is driven to press the cap onto the can body, so that the conveyor belt is first gradually accelerated and then gradually decelerated when driven to run, so as to achieve the purpose of flexibly conveying the milk powder cans, and the milk powder cans are prevented from shifting, deflecting, or even tilting and sliding during the conveying process due to excessive inertia force. At the same time, the cap is pressed onto the can body while the milk powder cans are conveyed, and the milk powder cans are synchronously capped, so that the milk powder cans will not be deviated, and the stability and reliability of the capping of the milk powder cans are ensured.

[0018] In the present invention, the flexible intermittent conveying mechanism drives the cover mechanism to place the cover on the can body during the intermittent conveying of the milk powder can, thereby realizing automatic cover, saving time and effort, so that the cover can be fastened on the can body under the action of the cover pressing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The general assembly structure of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 The general assembly structure of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 3 for Figure 1 A is an enlarged structural diagram;

[0022] Figure 4 It is a top view of the structure of the slide bar 1 and the conveyor belt assembly in the present invention;

[0023] Figure 5 It is a schematic diagram of the connection structure between the slide rod 1 and the slide frame in the present invention.

[0024] In the figure: 1, base; 2, conveyor belt assembly; 3, bracket; 4, motor; 5, slide bar 1; 6, guide frame; 7, slide frame; 8, rotating shaft; 9, rocker; 10, reciprocating screw; 11, touch switch 1; 12, touch switch 2; 13, connecting rod; 14, sleeve; 15, spring 1; 16, roller; 17, slide bar 2; 18, suction cup; 19, sleeve; 20, vertical pole; 21, Crossbeam; 22, groove; 23, vacuum pump; 24, cover cylinder; 25, support plate; 26, spring two; 27, slider; 28, slide bar three; 29, slide cylinder; 30, slide plate one; 31, spring three; 32, slide plate two; 33, spring four; 34, slide bar four; 35, tooth plate; 36, pressure rod; 37, bracket; 38, spring five; 39, cantilever; 40, slide bar five; 41, pressure plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 5 The present invention provides a technical solution: a capping device for a milk powder can, comprising a base 1, and further comprising:

[0027] A flexible intermittent conveying mechanism is arranged on the base 1, and the flexible intermittent conveying mechanism is used to intermittently convey milk powder cans;

[0028] A capping mechanism is arranged on the flexible intermittent conveying mechanism, and the flexible intermittent conveying mechanism drives the capping mechanism to buckle the cap body onto the can body while conveying the milk powder can;

[0029] The upper cover mechanism is arranged on the base 1, and the flexible intermittent conveying mechanism drives the upper cover mechanism to place the cover body on the can body during the intermittent conveying of the milk powder can, so that the cover body is fastened on the can body under the action of the capping mechanism.

[0030] In this embodiment, the flexible intermittent conveying mechanism includes a conveyor belt assembly 2, which is arranged on a bracket 3, and the bracket 3 is fixed on a base 1. Two vertical rods 20 are fixed on the base 1, and a guide frame 6 is fixed on one of the vertical rods 20. A slide bar 5 is slidably connected in the guide frame 6, and a slide bar 5 is fixed on the slide bar 5. A motor 4 is fixed on the bracket 3, and the output shaft end of the motor 4 is transmission-connected to a rotating shaft 8, and the rotating shaft 8 is fixedly connected to the shaft frame, and the shaft frame is fixed on the bracket 3. A rocker 9 is fixed at one end of the rotating shaft 8, and a pressure rod 36 is fixed at the end of the rocker 9 away from the rotating shaft 8. The pressure rod 36 and the rotating shaft 8 are arranged parallel to each other, and the pressure rod 36 is inserted in the slide frame 7 and can slide in the slide frame 7.

[0031] In this embodiment, a slide cylinder 29 is fixed to the lower end of the slide 7, and a cover pressing mechanism is arranged on the side wall of the slide cylinder 29. A slide rod 4 34 passes through and is slidably connected to the lower end wall of the slide cylinder 29, and a slide plate 2 32 and a tooth plate 35 are respectively fixed to the upper and lower ends of the slide rod 4 34. The slide plate 2 32 is connected to the lower end of the slide cylinder 29 through a spring 4 33. The teeth on the bottom surface of the tooth plate 35 can be engaged with the tooth grooves on the surface of the conveyor belt in the conveyor belt assembly 2.

[0032] In this embodiment, the lower end of the slide 7 passes through and is slidably connected to the slide rod three 28, the upper and lower ends of the slide rod three 28 are respectively fixedly connected to the slider 27 and the slide plate one 30, the slide plate one 30 is slidably connected in the slide cylinder 29, and the bottom surface of the slide plate one 30 is connected to the slide plate two 32 through the spring three 31, the slider 27 is slidably connected in the slide 7, and the pressure rod 36 can be in contact with the slider 27.

[0033] In this embodiment, the cover pressing mechanism includes a cantilever 39 fixed on the side wall of the slide cylinder 29, and a slide rod 5 40 passes through and is slidably connected to the cantilever 39. The upper and lower ends of the slide rod 5 40 are respectively fixedly connected to the bracket 37 and the pressure plate 41. The bracket 37 is connected to the cantilever 39 through a spring 5 38. The pressure rod 36 can be in contact with the bracket 37, and the pressure plate 41 is used to press the cover body onto the tank body.

[0034] In this embodiment, the upper cover mechanism includes a cross beam 21, two ends of which are fixedly connected to the upper ends of two vertical poles 20, respectively. A groove 22 is formed at the bottom of the cross beam 21, and two ends of the groove 22 are arc-shaped structures.

[0035] In this embodiment, the upper cover mechanism also includes a reciprocating screw rod 10, one end of the reciprocating screw rod 10 is coaxially fixedly connected to the rotating shaft 8, and the other end is fixedly rotatably connected to one of the vertical rods 20, and the axis frame and the vertical rod 20 are respectively fixedly connected to the touch switch 2 12 and the touch switch 1 11. The reciprocating screw rod 10 is sleeved and slidably connected with a matching sliding sleeve 19, and the sliding sleeve 19 can be respectively in contact with the touch switch 2 12 and the touch switch 1 11.

[0036] In this embodiment, a connecting rod 13 is fixed on the side wall of the sliding sleeve 19, and the connecting rod 13 is slidably connected to the vertical rod 20. A sleeve 14 is fixed on the connecting rod 13. A sliding rod 17 is inserted and slidably connected in the sleeve 14. The upper end of the sliding rod 17 is connected to the roller 16 for fixed axis rotation, and the roller 16 rolls in the groove 22. The upper end of the sliding rod 17 is connected to the sleeve 14 through a spring 15.

[0037] In this embodiment, a suction cup 18 is fixed to the lower end of the sliding rod 17 , a vacuum pump 23 is fixed to the base 1 , and the vacuum pump 23 is connected to the suction cup 18 through an air pipe.

[0038] In this embodiment, a cover cylinder 24 is fixed on the base 1 , a support plate 25 is slidably connected inside the cover cylinder 24 , and the bottom surface of the support plate 25 is connected to the base 1 via a spring 26 .

[0039] Working principle and advantages of the present invention: When the capping device for milk powder can is used, the working process is as follows:

[0040] like Figure 4 As shown, the cans filled with milk powder are placed on the conveyor belt in the conveyor belt assembly 2 at equal intervals in sequence, as shown in FIG. Figure 1 and Figure 2 As shown, the motor 4 is started by the controller, so that the motor 4 drives the rotating shaft 8 to rotate, thereby the rotating shaft 8 drives the pressure rod 36 to rotate around the central axis of the rotating shaft 8 through the rocker 9, and then the pressure rod 36 moves back and forth up and down in the slide 7 and at the same time drives the slide 7 and the slide rod 5 to move back and forth horizontally on the guide frame 6.

[0041] When the pressure rod 36 moves downward from the midpoint of the slide 7 to the lower end of the slide 7, the pressure rod 36 drives the slide 7 and the slide rod 5 to move in a Figure 5 During this process, the pressure rod 36 moves in a circular trajectory, so the speed of the pressure rod 36 in the horizontal direction will gradually increase, and the pressure rod 36 moves downward in the slide 7, as shown in FIG. Figure 3As shown, when the pressure rod 36 contacts the slider 27, the pressure rod 36 drives the slider 3 28 and the slider 1 30 to move downward through the slider 27, so that the slider 1 30 applies downward pressure to the slider 2 32 through the spring 31, and the slider 2 32 compresses the spring 4 33, so that the spring 4 33 obtains a restoring force, and the slider 2 32 drives the tooth plate 35 to move downward through the slider 4 34 and engage with the tooth groove on the conveyor belt. Figure 5 The leftward movement in the middle makes the tooth plate 35 drive the conveyor belt to run together, so that the conveyor belt drives each milk powder can thereon to run;

[0042] As described above, during the downward movement of the pressure rod 36, when the pressure rod 36 is in contact with the bracket 37, the pressure rod 36 compresses the spring 38 through the bracket 37, so that the spring 38 obtains a restoring force, and the bracket 37 drives the pressure plate 41 to move downward through the slide rod 40, so that the pressure plate 41 presses the cover body on the tank body tightly. During this process, since the pressure plate 41 and the tank body operate synchronously, no deviation or skewing will occur, thereby ensuring the stability and reliability of the milk powder can cap.

[0043] When the pressure rod 36 moves upward from the lower end of the slide 7 to the midpoint of the slide 7, the pressure rod 36 drives the slide 7 and the slide rod 5 to move upward. Figure 5 The pressing rod 36 continues to move to the left. During this process, since the pressing rod 36 moves in a circular trajectory, the speed of the pressing rod 36 in the horizontal direction will gradually decrease, so that the speed at which the tooth plate 35 drives the conveyor belt to move gradually decreases, and the pressing rod 36 moves up in the slide 7. At this time, the pressure of the pressing rod 36 on the slider 27 and the bracket 37 gradually decreases, and under the restoring force of the spring three 31, the slide plate 1 30 drives the slider 27 to move up and reset through the slide bar three 28. Under the restoring force of the spring four 33, the slide plate two 32 drives the tooth plate 35 to move up through the slide bar four 34 and disengage from the tooth groove. At this time, the conveyor belt stops running, and under the action of the restoring force of the spring five 38, the bracket 37 drives the pressure plate 41 to move up and reset through the slide bar five 40, so that the pressure plate 41 is away from the milk powder can, so that the conveyor belt is driven to gradually accelerate and then decelerate, so as to achieve the purpose of flexible transportation of the milk powder can, avoid the milk powder can from shifting and deflecting during the transportation process due to excessive inertia force, or even tilting and sliding, and while conveying the milk powder can, the cover body is pressed on the can body to synchronously seal the milk powder can, so that the milk powder can will not be offset, ensuring the stable and reliable sealing of the milk powder can.

[0044] When the pressing rod 36 moves upward from the midpoint of the slide 7 to the upper end of the slide 7, and then moves downward from the upper end of the slide 7 to the midpoint of the slide 7, the pressing rod 36 simultaneously drives the slide 7 and the slide rod 5 to move in a certain direction. Figure 5The pressing rod 36 does not generate force between the slider 27 and the bracket 37 during this process, so when the slider 7 and the sliding rod 5 are in Figure 5 During the rightward shift, the tooth plate 35 does not contact the conveyor belt, so that the conveyor belt does not run.

[0045] As described above, the rotation of the rotating shaft 8 drives the reciprocating screw 10 to rotate, so that the pressure rod 36 drives the slide 7 and the slide rod 5 to rotate. Figure 5 During the whole process of left shift, the reciprocating screw rod 10 drives the sliding sleeve 19 to move Figure 1 and Figure 2 The pressure rod 36 drives the carriage 7 and the slide bar 5 to move to the right. Figure 5 During the whole process of right shift, the reciprocating screw rod 10 drives the sliding sleeve 19 to move Figure 1 and Figure 2 Move left;

[0046] Sliding sleeve 19 Figure 1 and Figure 2 When the roller 16 rolls in the arc section at the left end of the groove 22, the slide bar 17 moves up through the spring 15, so that the roller 16 is always in contact with the groove 22, and the suction cup 18 is driven up through the slide bar 17, so that the suction cup 18 is away from the cover body on the milk powder can to avoid affecting the transportation of the milk powder can. When the roller 16 rolls in the arc section at the right end of the groove 22, the slide bar 17 compresses the spring 15 and drives the suction cup 18 to move down. When the sleeve 19 is in contact with the touch switch 11, the suction cup 18 just contacts the cover body at the upper end of the cover tube 24, and the slide 7 and the slide bar 15 are just ready to Figure 5 At this time, the touch switch 11 transmits the touch signal of the sliding sleeve 19 to the controller, and the controller controls the vacuum pump 23 to work, so that the vacuum pump 23 generates a suction force on the suction cup 18 and fixes the cover body, and the sliding sleeve 19 is Figure 1 and Figure 2When the roller 16 rolls in the arc section at the right end of the groove 22, the slide bar 17 moves up through the spring 15, so that the roller 16 is always in contact with the groove 22, and the suction cup 18 is driven up through the slide bar 17, so that the cover body on the suction cup 18 is away from the cover cylinder 24. When the roller 16 rolls in the arc section at the left end of the groove 22, the slide bar 17 compresses the spring 15 and drives the suction cup 18 to move down. When the sleeve 19 is in contact with the touch switch 12, the suction cup 18 just places the cover body on the corresponding milk powder can, and the slide 7 and the slide bar 15 are just ready to Figure 5 At this time, the touch switch 12 transmits the touch signal of the sliding sleeve 19 to the controller, and the controller controls the vacuum pump 23 to stop working, so that the suction cup 18 loses the suction force and releases the cover body, thereby automatically placing the cover body on the tank body.

[0047] After the cover in the cover cylinder 24 is taken away by the suction cup 18 , the support plate 25 is moved upward accordingly under the action of the second spring 26 so as to move the next cover to the height of the pickup position of the suction cup 18 .

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0049] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A capping device for a milk powder can, comprising a base (1), characterized in that: Also includes: A flexible intermittent conveying mechanism disposed on the base (1), the flexible intermittent conveying mechanism being used to intermittently convey milk powder cans; A capping mechanism is arranged on the flexible intermittent conveying mechanism, and the flexible intermittent conveying mechanism drives the capping mechanism to buckle the cap body onto the can body while conveying the milk powder can; A cover mechanism is arranged on the base (1), wherein the flexible intermittent conveying mechanism drives the cover mechanism to place the cover body on the can body during the intermittent conveying of the milk powder can, so that the cover body is fastened on the can body under the action of the cover pressing mechanism; The flexible intermittent conveying mechanism comprises a conveyor belt assembly (2), wherein the conveyor belt assembly (2) is arranged on a bracket (3), and the bracket (3) is fixed on a base (1), two vertical rods (20) are fixed on the base (1), and a guide frame (6) is fixed on one of the vertical rods (20), a slide rod (5) is slidably connected in the guide frame (6), a slide rod (7) is fixed on the slide rod (5), a motor (4) is fixed on the bracket (3), and the output shaft end of the motor (4) is transmission-connected to a rotating shaft (8), and the rotating shaft (8) is fixedly connected to the shaft frame, and the shaft frame is fixed on the bracket (3), a rocker (9) is fixed at one end of the rotating shaft (8), and a pressure rod (36) is fixed at the end of the rocker (9) away from the rotating shaft (8), the pressure rod (36) and the rotating shaft (8) are arranged parallel to each other, the pressure rod (36) is inserted in the slide frame (7) and can slide in the slide frame (7), and the lower end of the slide frame (7) is fixed to the upper end of the slide frame (7). A slide cylinder (29) is fixed at the end, and a cover pressing mechanism is arranged on the side wall of the slide cylinder (29), a slide rod four (34) is penetrated through the lower end wall of the slide cylinder (29) and is slidably connected, and a slide plate two (32) and a tooth plate (35) are respectively fixed at the upper and lower ends of the slide rod four (34), the slide plate two (32) is connected to the lower end of the slide cylinder (29) through a spring four (33), and the teeth on the bottom surface of the tooth plate (35) are engaged with the tooth groove buckle provided on the surface of the conveyor belt in the conveyor belt assembly (2). The lower end of the slide (7) passes through and is slidably connected to the slide bar three (28); the upper and lower ends of the slide bar three (28) are respectively fixedly connected to the slider (27) and the slide plate one (30); the slide plate one (30) is slidably connected in the slide cylinder (29); and the bottom surface of the slide plate one (30) is connected to the slide plate two (32) through the spring three (31); the slider (27) is slidably connected in the slide (7), and the pressure rod (36) is in buckling contact with the slider (27).

2. A capping device for a milk powder can according to claim 1, characterized in that: The capping mechanism comprises a cantilever (39) fixed on the side wall of the slide cylinder (29), a slide rod five (40) passing through the cantilever (39) and slidably connected, the upper and lower ends of the slide rod five (40) are respectively fixedly connected to a bracket (37) and a pressure plate (41), the bracket (37) is connected to the cantilever (39) through a spring five (38), the pressure rod (36) is in buckling contact with the bracket (37), and the pressure plate (41) is used to buckle the cover body onto the tank body.

3. A capping device for a milk powder can according to claim 1, characterized in that: The upper cover mechanism comprises a crossbeam (21), the two ends of the crossbeam (21) being respectively fixedly connected to the upper ends of two upright poles (20), the bottom of the crossbeam (21) being provided with a groove (22), the two ends of the groove (22) being arc-shaped structures.

4. A capping device for a milk powder can according to claim 3, characterized in that: The upper cover mechanism further comprises a reciprocating screw (10), one end of the reciprocating screw (10) being coaxially fixedly connected to the rotating shaft (8), and the other end being fixedly rotatably connected to one of the vertical rods (20), the shaft frame and the vertical rod (20) being respectively fixedly connected to the second touch switch (12) and the first touch switch (11), a matching sliding sleeve (19) being sleeved and slidably connected to the reciprocating screw (10), and the sliding sleeve (19) being respectively in abutting contact with the second touch switch (12) and the first touch switch (11).

5. A capping device for a milk powder can according to claim 4, characterized in that: A connecting rod (13) is fixed on the side wall of the sliding sleeve (19), and the connecting rod (13) is slidably connected to the vertical rod (20). A sleeve (14) is fixed on the connecting rod (13), and a second sliding rod (17) is inserted and slidably connected in the sleeve (14). The upper end of the second sliding rod (17) is rotatably connected to a roller (16), and the roller (16) rolls in the groove (22). The upper end of the second sliding rod (17) is connected to the sleeve (14) via a spring (15).

6. A capping device for a milk powder can according to claim 5, characterized in that: A suction cup (18) is fixed to the lower end of the second sliding rod (17), and a vacuum pump (23) is fixed on the base (1), and the vacuum pump (23) is connected to the suction cup (18) via an air pipe.

7. A capping device for a milk powder can according to claim 6, characterized in that: A cover cylinder (24) is fixed on the base (1), a support plate (25) is slidably connected inside the cover cylinder (24), and the bottom surface of the support plate (25) is connected to the base (1) via a second spring (26).

Images