Adjusting mechanism of box cover sealing arm for sealing machine of food packaging box

Abstract

The utility model relates to the technical field of packaging box sealing machine assemblies, in particular to an adjusting mechanism of a box cover sealing arm for a sealing machine of a food packaging box. The at least two sealing arms are oppositely arranged on the base body; the compression roller is rotationally connected with the sealing arm; and the first driving structure is used for enabling the sealing arms to be far away from each other or close to each other. The first driving structure is arranged to drive the two sealing arms to move synchronously, the distance between the pressing rollers is adjusted through the sealing arms to adapt to top easy-to-tear covers with different diameters, and meanwhile, the second driving structure is arranged to drive the abutting plate to move while the sealing arms move, so that the top easy-to-tear covers are sealed. Therefore, the distance between the abutting plates is adjusted according to the diameter of the top easy-to-tear cover, and it is ensured that the top easy-to-tear cover is stably pressed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of packing box sealing machine assembly technology, especially to a sealing arm adjusting mechanism of box cover sealing machine for food packing box. BACKGROUND

[0002] When packing food, the opening of the box body needs to be sealed with a top easy-to-tear cover to prevent the food from deteriorating by contacting the outside world. At present, the sealing is generally performed by a food packing can sealing machine. The sealing arm is an important component of the sealing machine, which is used to connect the pressure roller, so as to drive the pressure roller to press the side of the top easy-to-tear cover when the motor drives the sealing arm to rotate, thereby pressing out the folding edge of the top easy-to-tear cover.

[0003] The existing sealing machine has the following problems: the length of the sealing arm of the existing sealing machine is basically fixed, so the distance between the pressure rollers cannot be adjusted. When sealing packing boxes of different diameters, the sealing arm and the pressure roller matching the packing box need to be replaced, which seriously affects the production efficiency. SUMMARY

[0004] Therefore, the purpose of the utility model is to provide a sealing arm adjusting mechanism of box cover sealing machine for food packing box to solve the technical problem that the distance between the pressure rollers of the existing food packing box sealing machine cannot be adjusted.

[0005] To achieve the above purpose, the utility model provides a sealing arm adjusting mechanism of box cover sealing machine for food packing box, which comprises:

[0006] a base body connected to the main shaft of the sealing machine at one end;

[0007] at least two sealing arms arranged opposite to the base body;

[0008] a pressure roller rotatably connected to the sealing arm;

[0009] a first driving structure for moving the sealing arms away from or close to each other;

[0010] a pressing assembly arranged below the base body for pressing the upper end surface of the top easy-to-tear cover, the pressing assembly comprising at least two pressing plates, the lower end of the pressing plate forming a pressing surface for pressing the top easy-to-tear cover;

[0011] a second driving structure for moving the pressing plates close to or away from each other when the sealing arms move.

[0012] As a preferred technical solution of the utility model, the first driving structure comprises:

[0013] a rack with a sliding slot, the rack being connected to the base body, and the sealing arm being slidingly arranged in the sliding slot of the rack;

[0014] a driving assembly for driving the sealing arms to move along the chute.

[0015] As a preferred technical scheme of the utility model, the driving assembly comprises:

[0016] a motor arranged on one side of the frame;

[0017] a first screw rod, one end of which is connected with the output shaft of the motor, the other end of the first screw rod penetrating through the side wall of the frame into the chute, the first screw rod being matched with a first screw rod groove arranged on the surface of the sealing arm.

[0018] As a preferred technical scheme of the utility model, the second driving structure comprises:

[0019] a housing arranged at the lower end of the base;

[0020] a sliding frame, one end of which is arranged in the housing in a sliding manner, the other end of the sliding frame being connected with the abutting plate;

[0021] a first bevel gear connected with the surface of the first screw rod;

[0022] a rotating shaft, one end of which is arranged on the upper end of the housing, the other end of the rotating shaft being connected with a second bevel gear matched with the first bevel gear, the lower end of the rotating shaft being connected with a third bevel gear;

[0023] a second screw rod, one end of which is arranged in the housing in a rotating manner, the second screw rod being matched with a second screw rod groove arranged in the sliding frame, the second screw rod being provided with a fourth bevel gear matched with the first bevel gear.

[0024] As a preferred technical scheme of the utility model, the second driving structure further comprises a guide structure for guiding the movement of the sliding frame.

[0025] As a preferred technical scheme of the utility model, the guide structure comprises a guide rod fixedly arranged in the housing, the guide rod being matched with a guide groove arranged in the sliding frame.

[0026] As a preferred technical scheme of the utility model, the housing is a box structure with an internal cavity, and a bottom groove is arranged in the bottom of the housing for the sliding frame to extend out.

[0027] As a preferred technical scheme of the utility model, the abutting and pressing assembly further comprises a ball, one end of which is arranged in a recess groove arranged in the bottom of the abutting plate in a rotating manner.

[0028] As a preferred technical scheme of the utility model, the sealing arms are two and are arranged symmetrically about the base, and a gap exists between the pressing roller and the abutting plate.

[0029] As the preferred technical scheme of the utility model, the upper end of the base body is provided with a connecting head to connect the base body with the main shaft of the sealing machine.

[0030] The utility model discloses the beneficial effect has: the utility model discloses through setting up first drive structure, can drive two sealing arms synchronous movement, adjust the interval of pressure roller through sealing arm to adapt to different diameter top easy tear cover, and simultaneously setting up second drive structure, realize when sealing arm movement drive resistance board movement to the interval of resistance board is adjusted according to the diameter of top easy tear cover, ensure that top easy tear cover is pressed stably, compared with the prior art, the utility model discloses when the packaging box of different diameter is sealed, need not change, effectively improve the working efficiency of sealing machine. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawing needed to be used in embodiment or prior art description, obviously, the drawing in the following description is only the utility model, and for ordinary skilled person in the art, other drawings can also be obtained according to these drawings without creating labor.

[0032] Figure 1 It is the external three-dimensional structure schematic view of the utility model;

[0033] Figure 2 It is the half cut three-dimensional structure schematic view of the utility model;

[0034] Figure 3 It is the Figure 2 The enlarged structure schematic view of A in the middle;

[0035] Figure 4 It is the internal three-dimensional structure schematic view of the shell of the utility model;

[0036] Figure 5 It is the third bevel gear and fourth bevel gear cooperation structure schematic view of the utility model;

[0037] Figure 6 It is the bottom view structure schematic view of resistance board of the utility model.

[0038] In the drawing: 1, base body;2, connecting head;3, rack;4, motor;5, first screw;6, sealing arm;7, first screw groove;8, pressure roller;9, shell;10, first bevel gear;11, rotating shaft;12, second bevel gear;13, third bevel gear;14, second screw;15, fourth bevel gear;16, sliding frame;17, second screw groove;18, guide rod;19, guide groove;20, bottom groove;21, resistance board;22, ball. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model is further described in detail below in combination with specific embodiments.

[0040] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the utility model should be understood as the usual meaning by those skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, which may change accordingly when the absolute position of the described object changes.

[0041] As shown in Figure 1 A sealing mechanism for a box cover of a sealing machine of a food packaging box, comprising: a base body 1 connected to a main shaft of the sealing machine; at least two sealing arms 6 oppositely arranged on the base body 1; a pressure roller 8 rotatably connected to the sealing arms 6; a first driving structure for moving the sealing arms 6 away from or towards each other; a pressing assembly arranged below the base body 1 for pressing the upper end surface of the top tear-off cover, the pressing assembly comprising at least two pressing plates 21, the lower end of the pressing plate 21 forming a pressing surface for pressing the top tear-off cover; and a second driving structure for moving the pressing plates 21 towards or away from each other when the sealing arms 6 move.

[0042] The above technical scheme can adjust the distance between the pressure rollers 8. During use, the first driving structure can drive the sealing arms 6 to move away from or towards each other, thereby driving the pressure rollers 8 connected to the sealing arms 6 to move synchronously, so that the distance between the pressure rollers 8 adapts to the size of the top tear-off cover. During the process of folding the edge, the first driving structure can drive the pressure rollers 8 to fine-tune inwardly along the radial direction of the top tear-off cover, so that the folded edge has a certain inclination, ensuring that the top tear-off cover is stably connected to the opening of the can body. After the top tear-off cover is folded, the first driving structure drives the pressure rollers 8 to reset. When the sealing arms 6 move, the second driving structure also drives the pressing plates 21 to move towards or away from each other synchronously, thereby increasing or decreasing the range of the pressing plates 21, so that the top tear-off covers of different diameters can be pressed. Therefore, the device can adjust the distance between the pressure rollers 8 and the pressing plates 21 through the first and second driving structures, thereby adapting to the sealing of packaging cans of different diameters.

[0043] As shown in Figure 2As shown, in the embodiment, the first driving structure comprises: a rack 3 provided with a sliding groove, the rack 3 is connected with the base body 1, the sealing arms 6 are slidingly arranged in the sliding groove of the rack 3; a driving assembly for driving the sealing arms 6 to move along the sliding groove; specifically, the driving assembly comprises: a motor 4 arranged on one side of the rack 3; a first screw rod 5, one end of which is connected with the output shaft of the motor 4, the other end of the first screw rod 5 penetrates the side wall of the rack 3 into the sliding groove, the first screw rod 5 cooperates with a first screw rod groove 7 arranged on the surface of the sealing arm 6; the sealing arm 6 has two and is arranged symmetrically about the base body 1, there is a gap between the compression roller 8 and the abutting plate 21;

[0044] The above technical scheme can adjust the distance between the compression rollers 8, in use, the motor 4 is started to drive the first screw rod 5 to rotate, the first screw rod 5 drives the two sealing arms 6 to slide along the sliding groove of the rack 3, so that the two compression rollers 8 connected with the sealing arms 6 can be driven to move synchronously, the distance between the compression rollers 8 is adjusted to adapt to the top easy-to-tear cover with different diameters.

[0045] As shown in Figure 2 and Figure 3 As shown, in the embodiment, the second driving structure comprises: a shell 9 arranged at the lower end of the base body 1; a sliding frame 16 slidingly arranged in the shell 9, one end of the sliding frame 16 is connected with the abutting plate 21; a first bevel gear 10 connected on the surface of the first screw rod 5; a rotating shaft 11 rotatably arranged at the upper end of the shell 9, the upper end of the rotating shaft 11 is connected with a second bevel gear 12 cooperating with the first bevel gear 10, the lower end of the rotating shaft 11 is connected with a third bevel gear 13; a second screw rod 14 rotatably arranged in the shell 9, the second screw rod 14 cooperates with a second screw rod groove 17 arranged in the sliding frame 16, the second screw rod 14 is provided with a fourth bevel gear 15 cooperating with the first bevel gear 10;

[0046] The above technical scheme can realize the synchronous adjustment of the distance between the compression rollers 8 and the abutting plate 21, when the first screw rod 5 rotates, the first bevel gear 10 will also rotate, the first bevel gear 10 drives the second bevel gear 12 to rotate, the second bevel gear 12 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the third bevel gear 13 to rotate, the third bevel gear 13 drives the second screw rod 14 to rotate, the second screw rod 14 drives the two sliding frames 16 to slide, thereby changing the distance between the abutting plates 21, so as to adapt to the top easy-to-tear cover with different diameters.

[0047] As shown in Figure 3 As shown, in the embodiment, the second driving structure further comprises a guide structure for guiding the movement of the sliding frame 16; specifically, the guide structure comprises: a guide rod 18 fixedly arranged in the shell 9, the guide rod 18 cooperates with a guide groove 19 arranged in the sliding frame 16;

[0048] The above technical scheme can improve the motion stability of the sliding frame 16. In the process of motion of the sliding frame 16, the guide groove 19 of the sliding frame 16 cooperates with the guide rod 18 to guide, so that the reverse shaking of the sliding frame 16 can be avoided, and the limiting stability of the abutting plate 21 to the top easy-to-tear cover is improved.

[0049] As shown in Figure 4 and Figure 6 In the present embodiment, the shell 9 is a box structure with an inner cavity, and a bottom groove 20 is formed in the bottom of the shell 9 for the sliding frame 16 to extend out; the abutting assembly further comprises a ball 22 which is rotationally matched with a recessed groove formed in the bottom of the abutting plate 21.

[0050] The above technical scheme can reduce the friction between the abutting plate 21 and the top easy-to-tear cover, and reduce the wear of the abutting plate 21.

[0051] As shown in Figure 1 and Figure 2 In the present embodiment, the upper end of the base body 1 is provided with a connecting head 2 to connect the base body 1 with the main shaft of the sealing machine.

[0052] The above technical scheme can connect the base body 1 with the main shaft of the sealing machine. When sealing, the can body with the top easy-to-tear cover is placed on the workbench of the sealing machine, the lifting structure is started to drive the main shaft to descend until the abutting plate 21 abuts against the upper end of the top easy-to-tear cover, the button is pressed to start the power supply of the sealing machine, the main shaft drives the connecting head 2 to rotate, the connecting head 2 drives the base body 1 to rotate, thereby driving the sealing arm 6 to rotate, the sealing arm 6 drives the compression roller 8 to rotate while slowly descending, and the compression roller 8 folds and presses the edge of the top easy-to-tear cover to form a folded edge.

[0053] Working principle: in use, first, the connecting head 2 at the upper end of the base body 1 is connected with the main shaft of the sealing machine, when sealing, the can body with the top easy-to-tear cover is placed on the workbench of the sealing machine, the lifting structure is started to drive the main shaft to descend until the abutting plate 21 abuts against the upper end of the top easy-to-tear cover, the button is pressed to start the power supply of the sealing machine, the main shaft drives the connecting head 2 to rotate, the connecting head 2 drives the base body 1 to rotate, thereby driving the sealing arm 6 to rotate, the sealing arm 6 drives the compression roller 8 to rotate while slowly descending, and the compression roller 8 folds and presses the edge of the top easy-to-tear cover to form a folded edge, and in the process of folding and pressing, the first driving structure can drive the compression roller 8 to be slightly adjusted inward along the radial direction of the top easy-to-tear cover, so that the folded edge has a certain inclination, and the stable connection between the top easy-to-tear cover and the opening of the can body is ensured, and when the folding of the top easy-to-tear cover is completed, the first driving structure drives the compression roller 8 to reset.

[0054] When the top tear-off cover of different diameters needs to be processed, the motor 4 is started to drive the first screw rod 5 to rotate, the first screw rod 5 drives the two sealing arms 6 to slide, thereby driving the two compression rollers 8 to change the interval, so as to adapt to the top tear-off cover of different diameters, when the first screw rod 5 rotates, the first bevel gear 10 is driven to rotate, the second bevel gear 12 is driven to rotate by the first bevel gear 10, the rotating shaft 11 is driven to rotate by the second bevel gear 12, the third bevel gear 13 is driven to rotate by the rotating shaft 11, the second screw rod 14 is driven to rotate by the third bevel gear 13, the two sliding frames 16 are driven to slide by the second screw rod 14, thereby driving the abutting plates 21 to change the interval, so as to adapt to the top tear-off cover of different diameters.

[0055] It should be understood by those of ordinary skill in the art that the above discussion of any embodiment is merely exemplary and is not intended to suggest the scope of the present application (including the claims) is limited to these examples; under the thought of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0056] The present application is intended to cover all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Accordingly, any and all such modifications, variations or equivalents that fall within the spirit and scope of the present application are intended to be included within the scope of the present application.

Claims

1. An adjustment mechanism for the sealing arm of a food packaging box sealing machine, comprising: A base (1) whose one end is connected to the main shaft of the sealing machine; At least two sealing arms (6) are disposed opposite to the substrate (1); The pressure roller (8) is rotatably connected to the sealing arm (6); The adjustment mechanism is characterized in that it further includes: A first drive structure for moving the sealing arms (6) apart or closer to each other; A pressing assembly is provided below the substrate (1) for pressing against the upper surface of the top easy-tear cover. The pressing assembly includes at least two abutments (21), the lower ends of which form a pressing surface for pressing against the top easy-tear cover. A second drive structure for bringing the abutments (21) closer together or further apart when the sealing arm (6) moves.

2. The adjusting mechanism for the sealing arm of the food packaging box sealing machine according to claim 1, characterized in that, The first driving structure includes: A frame (3) with a groove is provided, the frame (3) is connected to the base (1), and the sealing arm (6) is slidably disposed in the groove of the frame (3); A drive assembly for driving the sealing arm (6) to move along the chute.

3. The adjusting mechanism for the sealing arm of the food packaging box sealing machine according to claim 2, characterized in that, The driving component includes: The motor (4) is located on one side of the frame (3); The first lead screw (5) has one end connected to the output shaft of the motor (4), and the other end of the first lead screw (5) passes through the side wall of the frame (3) and enters the slide groove. The first lead screw (5) cooperates with the first lead screw groove (7) opened on the surface of the sealing arm (6).

4. The adjusting mechanism for the sealing arm of the food packaging box sealing machine according to claim 3, characterized in that, The second driving structure includes: A housing (9) is disposed at the lower end of the base (1); A sliding frame (16) is slidably disposed in the housing (9) at one end, and the other end of the sliding frame (16) is connected to the abutment plate (21); The first bevel gear (10) is connected to the surface of the first lead screw (5); A rotating shaft (11) is rotatably mounted on the upper end of the housing (9). The upper end of the rotating shaft (11) is connected to a second bevel gear (12) that cooperates with the first bevel gear (10), and the lower end of the rotating shaft (11) is connected to a third bevel gear (13). The second lead screw (14) is rotatably disposed in the housing (9). The second lead screw (14) cooperates with the second lead screw groove (17) opened in the sliding frame (16). The second lead screw (14) is provided with a fourth bevel gear (15) that cooperates with the first bevel gear (10).

5. The adjusting mechanism for the sealing arm of the food packaging box sealing machine according to claim 4, characterized in that, The second drive structure also includes a guide structure for guiding the movement of the sliding frame (16).

6. The adjusting mechanism for the sealing arm of the food packaging box sealing machine according to claim 5, characterized in that, The guide structure includes a guide rod (18) fixedly disposed in the housing (9), the guide rod (18) cooperating with a guide groove (19) opened in the sliding frame (16).

7. The adjusting mechanism for the sealing arm of the food packaging box sealing machine according to claim 6, characterized in that, The housing (9) is a hollow box structure, and the bottom of the housing (9) is provided with a bottom groove (20) for the sliding frame (16) to extend out.

8. The adjusting mechanism for the sealing arm of the food packaging box sealing machine according to claim 1, characterized in that, The pressing assembly also includes a ball bearing (22) that rotates in conjunction with a recessed groove formed at the bottom of the abutment plate (21).

9. The adjusting mechanism for the sealing arm of the food packaging box sealing machine according to claim 1, characterized in that, The sealing arm (6) has two arms and is symmetrically arranged about the left and right sides of the base (1), and there is a gap between the pressure roller (8) and the abutment plate (21).

10. The adjusting mechanism for the lid sealing arm of the food packaging box sealing machine according to any one of claims 1-9, characterized in that, The upper end of the substrate (1) is provided with a connector (2) to connect the substrate (1) to the main shaft of the sealing machine.

Images