Tightness adjusting device for bottom film of packaging machine

Abstract

The utility model relates to the technical field of packaging machines, in particular to a bottom film tension degree adjusting device of a packaging machine, which not only can adjust the tension degree of a bottom film according to actual requirements and improve the use flexibility of the device, but also can clean and collect dust before packaging the bottom film and ensure the cleanness and tidiness of the bottom film in use. Comprising a workbench; the device further comprises a fixing mechanism, a driving mechanism, a tensioning mechanism, a sweeping mechanism and a dust collection mechanism, the fixing mechanism is installed on the workbench and facilitates replacement of the bottom film, the driving mechanism is installed on the workbench and drives the bottom film to rotate, and the tensioning mechanism is installed on the workbench and adjusts the tensioning degree of the bottom film. The sweeping mechanism is installed on the driving mechanism and cleans the bottom film, and the dust suction mechanism is installed on the driving mechanism and sucks away dust on the surface of the bottom film.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, in particular to a bottom film tension regulating device for packaging machines. Background Art

[0002] Film is a thin, soft, transparent sheet made of plastic, adhesive, rubber or other materials. Roll film is used in automatic packaging machines. For example, common bagged shampoo and some wet wipes use this packaging mode. The cost of roll film packaging is relatively low but requires a matching automatic packaging machine.

[0003] Existing packaging machine bottom film tension adjustment devices, such as the utility model patent application No. 201821119951.0, disclose a film roll feeding device for packaging machines with tension adjustment. The main structure includes a base, one end of the top of the base is provided with grooves distributed at equal distances, one side of the top of the base is connected to a first mounting plate by fastening bolts, and the other side of the top of the base is connected to a second mounting plate by fastening bolts. The tops of the first and second mounting plates on opposite sides are connected to the same C-shaped fixing seat by bearings, and the top of one side of the first mounting plate is connected to a rotating motor by fastening bolts. During use, the rotating motor drives the fixing seat and the housing to rotate to the top of the first mounting plate, and the film extends through the discharge port and closely against the stop bar. The distance between the stop bar and the extension plate is adjusted by a hydraulic cylinder. When the distance between the stop bar and the extension plate is large, the film is discharged taut, and when the distance between the stop bar and the extension plate is small, the film becomes loose. When the laser receiver receives the laser emitted by the laser reflector, a prompt light illuminates to remind the staff to replace the film roll in time.

[0004] However, most existing packaging machine bottom film tension adjustment devices are difficult to adjust arbitrarily according to user requirements, lack control over the tensioning force, and the surface of the bottom film is likely to be contaminated with dust after unfolding, affecting subsequent use. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a packaging machine bottom film tension adjustment device which can not only adjust the tension of the bottom film according to actual needs, thereby improving the flexibility of the device, but also cleans and vacuums the bottom film before packaging, thereby ensuring that the bottom film is clean and tidy when used.

[0006] The utility model provides a bottom film tensioning adjustment device for a packaging machine, comprising a workbench; further comprising a fixing mechanism, a driving mechanism, a tensioning mechanism, a cleaning mechanism and a dust suction mechanism. The fixing mechanism is mounted on the workbench and facilitates replacement of the bottom film, the driving mechanism is mounted on the workbench and drives the bottom film to rotate, the tensioning mechanism is mounted on the workbench and adjusts the tension of the bottom film, the cleaning mechanism is mounted on the driving mechanism and cleans the bottom film, and the dust suction mechanism is mounted on the driving mechanism and sucks away dust on the surface of the bottom film; a staff member mounts the fixing mechanism on the workbench, the fixing mechanism and the driving mechanism are connected by transmission, the driving mechanism drives the fixing mechanism to rotate to untie the bottom film, adjusts the tension of the bottom film by the tensioning mechanism, and then the bottom film is cleaned by the cleaning mechanism, and at the same time the dust suction mechanism extracts the dust cleaned by the cleaning mechanism, and the bottom film enters the packaging machine for packaging after passing through the cleaning mechanism.

[0007] Preferably, the fixing mechanism includes two groups of baffles, a winding roller, a bottom film roll, a positioning ring, a clamping seat, a handle and two groups of fixing bolts. The bottom ends of the two groups of baffles are connected to the top of the workbench. The baffle is provided with a mounting groove and a positioning hole. The winding roller is installed in the mounting groove of the baffle, the bottom film roll is installed on the winding roller, the positioning ring is installed on the winding roller, the clamping seat is installed in the mounting groove of the baffle, the handle is installed on the clamping seat, and the two groups of fixing bolts are installed on the clamping seat; the staff installs the bottom film roll on the winding roller, then puts the positioning ring on the winding roller, inserts one end of the winding roller into the tensioning mechanism, places the other end in the mounting groove of the baffle and clamps the positioning ring in the mounting groove of the baffle, then operates the handle to drive the clamping seat to insert into the mounting groove of the baffle, and inserts the two groups of fixing bolts into the positioning holes of the baffle for fixing.

[0008] Preferably, the driving mechanism includes a motor, a reducer, a transmission shaft, a connector and a pulley. The motor is mounted on the baffle, the reducer is mounted on the baffle, the transmission shaft is rotatably mounted on the baffle and longitudinally connected to the reducer, the connector is rotatably mounted on the baffle and longitudinally connected to the transmission shaft, and the pulley is mounted on the transmission shaft; the winding roller is inserted into the connector to make it transmission connected, and the motor is started. The motor drives the transmission shaft to rotate through the reducer, and the transmission shaft drives the connector and the pulley to rotate. The connector drives the winding roller and the bottom film roll to rotate to untie the bottom film.

[0009] Preferably, the tensioning mechanism includes two groups of connecting shafts, two groups of connecting plates, two groups of tensioning rollers, dampers and knobs. The two groups of connecting shafts are rotatably mounted on the two groups of baffles respectively, the two groups of connecting plates are respectively mounted on the two groups of connecting shafts, the two groups of tensioning rollers are mounted between the two groups of connecting plates, the dampers are mounted on the baffles and connected to the connecting shafts, and the knobs are mounted on the other group of baffles and connected to the other group of knobs; according to actual needs, the staff rotates the knob, and the knob drives the connecting shaft connected to it to rotate, and the bottom film is wrapped around the two groups of tensioning rollers. The connecting shaft drives the connecting plates and the two groups of tensioning rollers to rotate, thereby adjusting the tension of the bottom film. The dampers are set to prevent the two groups of connecting shafts from rotating autonomously, so as to ensure the tensioning of the bottom film.

[0010] Preferably, both sets of tensioning rollers are made of rubber; the rubber roller has good elasticity, which enables it to quickly return to its original shape during contact and extrusion and maintain stable performance; and the surface of the rubber roller is wear-resistant and can remain smooth for a long time, reducing performance degradation caused by wear.

[0011] Preferably, the cleaning mechanism includes two sets of rotating shafts, two sets of cleaning rollers, a second pulley, a belt and two sets of gears. The two sets of rotating shafts are rotatably installed between the two sets of baffles. The two sets of cleaning rollers are respectively installed on the two sets of rotating shafts. The second pulley is installed on one of the sets of rotating shafts. The belt tensioning is installed on the second pulley and the first pulley. The two sets of gears are respectively installed on the two sets of rotating shafts; the first pulley drives the second pulley to rotate through the belt, and the second pulley drives the rotating shaft connected to it to rotate. The two sets of gears are engaged in transmission to drive the other set of rotating shafts to rotate, and the two sets of rotating shafts drive the two sets of cleaning rollers to rotate to clean the bottom film.

[0012] Preferably, the dust suction mechanism includes an air pump, an exhaust pipe, a dust suction head and a sewage pipe. The air pump is installed on the baffle, the exhaust pipe is installed on the air pump, the dust suction head is installed between two sets of baffles and connected to the inside of the exhaust pipe, and the sewage pipe is installed on the air pump; the reducer drives the air pump to extract air, and the air pump extracts the dust swept down by the cleaning roller through the exhaust pipe and the dust suction head, and discharges it through the sewage pipe.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the staff installs the fixing mechanism on the workbench, the fixing mechanism and the driving mechanism are connected in transmission, the driving mechanism drives the fixing mechanism to rotate to untie the bottom film, and the tensioning degree of the bottom film is adjusted by the tensioning mechanism, and then the bottom film is cleaned by the cleaning mechanism, and at the same time the dust suction mechanism extracts the dust cleaned by the cleaning mechanism, and the bottom film passes through the cleaning mechanism and enters the packaging machine for packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an axonometric structural diagram of the utility model;

[0015] Figure 2This is a partially enlarged axonometric structural diagram of the fixing mechanism of the utility model;

[0016] Figure 3 This is a partially enlarged cross-sectional axonometric structural diagram of the drive mechanism of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-section axonometric structure of the tensioning mechanism of the utility model;

[0018] Figure 5 It is a schematic diagram of the cross-sectional axonometric structure of the cleaning mechanism and the dust collection mechanism of the utility model.

[0019] Markings in the accompanying drawings: 01, workbench; 02, fixing mechanism; 21, baffle; 22, winding roller; 23, bottom film roll; 24, positioning ring; 25, holder; 26, handle; 27, fixing bolt; 03, driving mechanism; 31, motor; 32, reducer; 33, transmission shaft; 34, connector; 35, pulley one; 04, tensioning mechanism; 41, connecting shaft; 42, connecting plate; 43, tensioning roller; 44, damper; 45, knob; 05, cleaning mechanism; 51, rotating shaft; 52, cleaning roller; 53, pulley two; 54, belt; 55, gear; 06, dust collection mechanism; 61, air pump; 62, exhaust pipe; 63, dust collection head; 64, sewage pipe. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0021] Example 1

[0022] The utility model provides a bottom film tension adjustment device for a packaging machine, comprising a workbench 01; a fixing mechanism 02, a driving mechanism 03, a tensioning mechanism 04, a cleaning mechanism 05 and a dust collecting mechanism 06. The fixing mechanism 02 is mounted on the workbench 01 and facilitates the replacement of the bottom film. The driving mechanism 03 is mounted on the workbench 01 and drives the bottom film to rotate. The tensioning mechanism 04 is mounted on the workbench 01 and adjusts the tension of the bottom film. The cleaning mechanism 05 is mounted on the driving mechanism 03 and cleans the bottom film. The dust collecting mechanism 06 is mounted on the workbench 01 and drives the bottom film to rotate. It is installed on the driving mechanism 03 and absorbs the dust on the surface of the bottom film; the fixing mechanism 02 includes two sets of baffles 21, a winding roller 22, a bottom film roll 23, a positioning ring 24, a holder 25, a handle 26 and two sets of fixing bolts 27. The bottom ends of the two sets of baffles 21 are connected to the top of the workbench 01. The baffles 21 are provided with mounting grooves and positioning holes. The winding roller 22 is installed in the mounting groove of the baffle 21, the bottom film roll 23 is installed on the winding roller 22, the positioning ring 24 is installed on the winding roller 22, and the holder 25 is installed in the mounting groove of the baffle 21. Inside, the handle 26 is installed on the card base 25, and the two sets of fixing bolts 27 are installed on the card base 25; the driving mechanism 03 includes a motor 31, a reducer 32, a transmission shaft 33, a connector 34 and a pulley 35. The motor 31 is installed on the baffle 21, the reducer 32 is installed on the baffle 21, the transmission shaft 33 is rotatably installed on the baffle 21 and longitudinally connected to the reducer 32, the connector 34 is rotatably installed on the baffle 21 and longitudinally connected to the transmission shaft 33, and the pulley 35 is installed on the transmission shaft 33; tensioning Mechanism 04 includes two sets of connecting shafts 41, two sets of connecting plates 42, two sets of tensioning rollers 43, dampers 44 and knobs 45. The two sets of connecting shafts 41 are rotatably mounted on the two sets of baffles 21 respectively, the two sets of connecting plates 42 are mounted on the two sets of connecting shafts 41 respectively, the two sets of tensioning rollers 43 are mounted between the two sets of connecting plates 42, the dampers 44 are mounted on the baffles 21 and connected to the connecting shafts 41, and the knobs 45 are mounted on the other set of baffles 21 and connected to the other set of knobs 45. The two sets of tensioning rollers 43 are also made of rubber.When it is working, first, the staff installs the bottom film roll 23 on the winding roller 22, then puts the positioning ring 24 on the winding roller 22, inserts one end of the winding roller 22 into the tensioning mechanism 04, places the other end into the mounting groove of the baffle 21 and makes the positioning ring 24 stuck in the mounting groove of the baffle 21, then operates the handle 26 to drive the card seat 25 to insert into the mounting groove of the baffle 21, and inserts the two sets of fixing bolts 27 into the positioning holes of the baffle 21 for fixing, inserts the winding roller 22 into the connecting head 34 to make it transmission connected, starts the motor 31, and the motor 31 drives the transmission shaft 33 through the speed reducer 32, which in turn drives the connector 34 and pulley 35. The connector 34 then rotates the take-up roller 22 and the bottom film roll 23 to unwind the bottom film. As needed, the operator turns the knob 45, which rotates the connecting shaft 41 connected to it. The bottom film is wound around the two sets of tensioning rollers 43. The connecting shaft 41 rotates the connecting plate 42 and the two sets of tensioning rollers 43, thereby adjusting the tension of the bottom film. A damper 44 is provided to prevent the two sets of connecting shafts 41 from rotating independently, ensuring that the bottom film is tensioned.

[0023] Example 2

[0024] like Figures 1 to 5As shown, the present invention is a packaging machine bottom film tension adjustment device, based on Example 1; the cleaning mechanism 05 includes two sets of rotating shafts 51, two sets of cleaning rollers 52, a second pulley 53, a belt 54 and two sets of gears 55, the two sets of rotating shafts 51 are rotatably mounted between the two sets of baffles 21, the two sets of cleaning rollers 52 are respectively mounted on the two sets of rotating shafts 51, the second pulley 53 is mounted on one of the sets of rotating shafts 51, the belt 54 is tensioned on the second pulley 53 and the first pulley 35, and the two sets of gears 55 are respectively mounted on the two sets of rotating shafts 51; the dust collection mechanism 06 includes an air pump 61, an exhaust pipe 62, a dust collection head 63 and a sewage pipe 64, the air pump 61 is installed on the baffle 21, the exhaust pipe 62 is installed on the air pump 61, the dust collection head 63 is installed between the two sets of baffles 21 and communicated with the inside of the exhaust pipe 62, and the sewage pipe 64 is installed on the air pump 61; when it is working, first, the staff installs the bottom film roll 23 on the winding roller 22, then puts the positioning ring 24 on the winding roller 22, inserts one end of the winding roller 22 into the tensioning mechanism 04, and places the other end in the mounting groove of the baffle 21 and makes the positioning ring 24 stuck in the mounting groove of the baffle 21, then operates the handle 26 to drive the card seat 25 to be inserted into the mounting groove of the baffle 21, and inserts the two sets of fixing bolts 27 The bottom film roll 23 is wound around the two sets of tensioning rollers 43, and the connecting shaft 41 drives the connecting plate 42 and the two sets of tensioning rollers 43 to rotate, thereby adjusting the tension of the bottom film. The diaphragm 44 prevents the two sets of connecting shafts 41 from rotating independently, so as to ensure the tension of the bottom film. At the same time, pulley 1 35 drives pulley 2 53 to rotate through belt 54, and pulley 2 53 drives the rotating shaft 51 connected thereto to rotate. The two sets of gears 55 engage in transmission to drive the other set of rotating shafts 51 to rotate. The two sets of rotating shafts 51 drive two sets of cleaning rollers 52 to rotate to clean the bottom film. The reducer 32 drives the air pump 61 to exhaust air. The air pump 61 extracts the dust swept by the cleaning roller 52 through the exhaust pipe 62 and the dust collection head 63, and discharges it through the sewage pipe 64. After the bottom film is cleaned by the cleaning mechanism 05, it enters the packaging machine for packaging.

[0025] The electric motor 31, reducer 32 and air pump 61 of the utility model are purchased on the market, and technicians in this industry only need to install and operate them according to the accompanying instruction manuals without the need for creative work by technicians in this field.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A packaging machine bottom film tension adjustment device, comprising a workbench (01); characterized in that: The invention also includes a fixing mechanism (02), a driving mechanism (03), a tensioning mechanism (04), a cleaning mechanism (05) and a dust collecting mechanism (06). The fixing mechanism (02) is installed on the workbench (01) and facilitates the replacement of the base film. The driving mechanism (03) is installed on the workbench (01) and drives the base film to rotate. The tensioning mechanism (04) is installed on the workbench (01) and adjusts the tension of the base film. The cleaning mechanism (05) is installed on the driving mechanism (03) and cleans the base film. The dust collecting mechanism (06) is installed on the driving mechanism (03) and sucks away dust on the surface of the base film.

2. A packaging machine bottom film tension adjustment device according to claim 1, characterized in that: The fixing mechanism (02) comprises two groups of baffles (21), a winding roller (22), a bottom film roll (23), a positioning ring (24), a holder (25), a handle (26) and two groups of fixing bolts (27). The bottom ends of the two groups of baffles (21) are connected to the top end of the workbench (01). The baffles (21) are provided with mounting grooves and positioning holes. The winding roller (22) is mounted in the mounting grooves of the baffles (21). The bottom film roll (23) is mounted on the winding roller (22). The positioning ring (24) is mounted on the winding roller (22). The holder (25) is mounted in the mounting grooves of the baffles (21). The handle (26) is mounted on the holder (25). The two groups of fixing bolts (27) are both mounted on the holder (25).

3. The bottom film tension adjustment device for a packaging machine according to claim 2, characterized in that: The driving mechanism (03) includes a motor (31), a reducer (32), a transmission shaft (33), a connector (34) and a pulley (35). The motor (31) is mounted on the baffle (21), the reducer (32) is mounted on the baffle (21), the transmission shaft (33) is rotatably mounted on the baffle (21) and longitudinally connected to the reducer (32), the connector (34) is rotatably mounted on the baffle (21) and longitudinally connected to the transmission shaft (33), and the pulley (35) is mounted on the transmission shaft (33).

4. The bottom film tension adjustment device for a packaging machine according to claim 2, characterized in that: The tensioning mechanism (04) comprises two groups of connecting shafts (41), two groups of connecting plates (42), two groups of tensioning rollers (43), a damper (44) and a knob (45). The two groups of connecting shafts (41) are rotatably mounted on the two groups of baffles (21), the two groups of connecting plates (42) are mounted on the two groups of connecting shafts (41), the two groups of tensioning rollers (43) are mounted between the two groups of connecting plates (42), the damper (44) is mounted on the baffles (21) and connected to the connecting shafts (41), and the knob (45) is mounted on another group of baffles (21) and connected to another group of knobs (45).

5. The bottom film tension adjustment device for a packaging machine according to claim 4, characterized in that: It also includes two sets of tension rollers (43) both made of rubber.

6. The bottom film tension adjustment device for a packaging machine according to claim 4, characterized in that: The cleaning mechanism (05) comprises two groups of rotating shafts (51), two groups of cleaning rollers (52), a second pulley (53), a belt (54) and two groups of gears (55). The two groups of rotating shafts (51) are rotatably mounted between the two groups of baffles (21). The two groups of cleaning rollers (52) are respectively mounted on the two groups of rotating shafts (51). The second pulley (53) is mounted on one of the groups of rotating shafts (51). The belt (54) is tensioned and mounted on the second pulley (53) and the first pulley (35). The two groups of gears (55) are respectively mounted on the two groups of rotating shafts (51).

7. The bottom film tension adjustment device for a packaging machine according to claim 2, characterized in that: The dust collection mechanism (06) comprises an air pump (61), an air extraction pipe (62), a dust collection head (63) and a sewage discharge pipe (64). The air pump (61) is mounted on the baffle (21), the air extraction pipe (62) is mounted on the air pump (61), the dust collection head (63) is mounted between two sets of baffles (21) and communicated with the interior of the air extraction pipe (62), and the sewage discharge pipe (64) is mounted on the air pump (61).

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