CN218617365U

CN218617365U - Cylinder driving type vacuum sealing machine

Info

Publication number: CN218617365U
Application number: CN202222750657.2U
Authority: CN
Inventors: 陈海林
Original assignee: Foshan Sujia Electrical Appliance Technology Co ltd
Current assignee: Foshan Sujia Electrical Appliance Technology Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-03-14
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a cylinder-driven vacuum sealing machine, which comprises a shell, an air pump for generating negative pressure, a gland and a heating strip for sealing, wherein the shell is provided with a packaging bag insertion hole, the gland is movably arranged at the upper side of the packaging bag insertion hole up and down, the lower side of the packaging bag insertion hole is provided with a cavity, the heating strip is arranged at the upper side or the lower side of the packaging bag insertion hole and is positioned beside the outer side of the cavity, the shell is also internally provided with a cylinder for driving the gland to descend, and the cylinder is driven by the negative pressure generated by the air pump; the gland and the concave cavity are enclosed to form an air pumping cavity, and the air pumping cavity is vacuumized by connecting negative pressure. The utility model discloses a gland passes through the cylinder drive with end box closure, through sealing washer sealed fit and sliding fit between the piston of cylinder and the cylinder body, and there is not elastic deformation like the gasbag piston and cylinder body, so avoided the condition of fracture, the life-span is longer, more reliable.

Description

Cylinder driving type vacuum sealing machine

Technical Field

The utility model relates to a vacuum capper, especially a cylinder drive formula vacuum capper.

Background

Chinese patent No. ZL 201920567381, X in 2020, 1 month and 14 days, discloses an automatic vacuum packaging machine with an air bag lifting vacuum sealing device, which comprises an upper gland and a main body, wherein the upper gland and/or the main body is mounted on the upper gland, the upper gland and/or the main body is provided with a vacuum cavity, the upper gland or the main body is provided with a heat sealing mechanism, the heat sealing mechanism is used for heat sealing a vacuum packaging bag, the vacuum packaging machine is provided with a lifting vacuum sealing device, the lifting vacuum sealing device is mounted on the upper gland or the main body, the lifting vacuum sealing device comprises a heat sealing vacuum component and a driving component, the driving component is connected with the heat sealing vacuum component in a lifting driving way, the heat sealing vacuum component is located on one side, into which the vacuum packaging bag is inserted, the driving component comprises an air pressure control part and an air bag, the air pressure control part is connected with the air bag, and the air bag movably supports against the vacuum heating component. After this structure is used for a long time, the initial shape of gasbag changes easily to it is relatively poor to go up the gland state of resetting, and in addition, the gasbag material receives the climatic effect easily, and in dry cold environment, the gasbag texture hardens, and difficult inflation or easy fracture. In addition, the air bag is driven by positive pressure, so the packaging machine must be additionally provided with a pressurization air pump.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure is reasonable, long service life, stable performance's cylinder drive formula vacuum capper.

The purpose of the utility model is realized like this:

the utility model provides a cylinder drive formula vacuum capper, includes the casing, is used for producing the air pump of negative pressure, gland and the strip that generates heat that is used for sealing, is equipped with the wrapping bag inserted hole on the casing, and the upper and lower both sides in wrapping bag inserted hole are equipped with gland and cavity respectively, and gland or cavity and casing clearance fit from top to bottom generate heat the strip setting at the upside or the downside in wrapping bag inserted hole and lie in the outside of cavity other, its characterized in that: the shell is also internally provided with an air cylinder driven by negative pressure generated by the air pump, and the air cylinder is used for driving the gland to move towards the direction of the concave cavity, or the air cylinder is used for driving the concave cavity to move towards the direction of the gland; the gland and the cavity are enclosed to form an air pumping cavity, and the air pumping cavity is vacuumized by connecting negative pressure; the air pump comprises a first vacuum pump, the first vacuum pump provides negative pressure for the air cylinder and the air pumping cavity, or the air pump comprises a second vacuum pump and a third vacuum pump, and the second vacuum pump and the third vacuum pump respectively provide negative pressure for the air cylinder and the air pumping cavity.

The purpose of the utility model can also adopt the following technical measures to solve:

as more specific scheme, the gland activity sets up the upside in the wrapping bag inserted hole from top to bottom, and the downside of wrapping bag inserted hole is equipped with end box, the cavity sets up box top surface at the end, and the strip that generates heat sets up in gland bottom or end box top and lies in the outside of cavity other, the cylinder is used for driving the gland decline.

As a further scheme, the air cylinder comprises a cylinder body, a piston and a piston rod, the piston is arranged in the cylinder body, a first sealing ring is arranged on the periphery of the piston, the first sealing ring is in sealing sliding fit with the inner wall of the cylinder body and surrounds the lower part of the cylinder body to form a negative pressure cavity, and negative pressure is provided for the negative pressure cavity by an air pump; the piston rod is connected to the bottom of the piston, the lower end of the piston rod extends out of the bottom of the cylinder body and points to the top of the gland or is in transmission connection with the gland, a second sealing ring is arranged on the periphery of the piston rod, and the second sealing ring is in sealing fit with the cylinder body.

As a further scheme, a limiting boss is arranged in the cylinder body corresponding to the negative pressure cavity, an air cylinder pumping hole communicated with the negative pressure cavity is formed in one side of the cylinder body, which is lower than the limiting boss, and the air cylinder pumping hole is communicated with an air pump.

As a further scheme, an open port is formed in the top of the cylinder body, and a compression spring is arranged between the piston and the bottom of the cylinder body.

As a further scheme, the shell comprises a main case and a face cover, the main case is provided with an inner cavity, the inner cavity is provided with a supporting step, the gland is arranged in the inner cavity and supported on the supporting step through a supporting spring, and the gland is in movable fit with the inner cavity up and down; an inner cover is fixedly arranged in the inner cavity corresponding to the upper part of the gland, the cylinder is arranged on the inner cover, and the surface cover covers the top of the inner cavity; the bottom of the main case is provided with a notch corresponding to the lower part of the inner cavity, the bottom box is inserted in the notch, and the packaging bag insertion opening is formed between the upper side of the bottom box and the top of the notch.

As a further scheme, the lower end of the piston rod is provided with a cushion pad, the outer diameter of the cushion pad is larger than the diameter of the piston rod, on one hand, the piston can be prevented from being separated from the cylinder body, and on the other hand, the impact noise with the gland can be reduced.

As a further scheme, the left air cylinder and the right air cylinder are arranged, so that the pressing force is more uniform; the heating strip is arranged at the bottom of the gland, and the bottom box is provided with a heat-resisting soft pressing strip corresponding to the heating strip.

As a further scheme, the left end and the right end of the bottom of the gland are provided with limit pins; the left end and the right end of the bottom box are provided with lock grooves corresponding to the limiting pins, and when the gland descends, the limiting pins are inserted into the lock grooves; the left end and the right end of the notch are both provided with guide rails pointing forwards and backwards, and buckling positions are arranged on the guide rails; the left end and the right end of the bottom box are provided with guide grooves which are inserted with the guide rails, convex buckles are arranged in the guide grooves and are matched with the buckle positions in a pre-tightening and buckling manner.

As a further scheme, a lower sealing ring is arranged on the top surface of the bottom box corresponding to the periphery of the concave cavity, an upper sealing ring is arranged on the bottom surface of the gland corresponding to the lower sealing ring, a vacuumizing channel is arranged on the gland, and one end of the vacuumizing channel is communicated with the inner side of an area surrounded by the upper sealing ring.

The utility model has the advantages as follows:

(1) The air cylinder of the utility model is driven by negative pressure, the negative pressure can be provided by an independent air pump or a vacuum pump for extracting air in the packaging bag in a vacuum sealing machine, and the flexibility is stronger;

(2) The gland and the bottom box of the utility model are closed and driven by the cylinder, the piston and the cylinder body of the cylinder are in sealing fit and sliding fit through the sealing ring, and the piston and the cylinder body do not have elastic deformation like an air bag, so that the cracking condition is avoided, and the service life is longer and more reliable; and the piston motion of the cylinder belongs to guide motion, so the pressing process of the gland is more stable.

Drawings

Fig. 1 is an exploded schematic view of an embodiment of the present invention.

Fig. 2 is a schematic view of the structure of the middle gland of the present invention.

Fig. 3 is a schematic view of the structure of the middle piston of the present invention.

Fig. 4 is a schematic perspective view of the present invention.

Fig. 5 is a schematic diagram of the structure of the right side of the present invention.

Fig. 6 isbase:Sub>A schematic sectional view of the structure of fig. 5base:Sub>A-base:Sub>A according to the present invention.

Fig. 7 is a schematic view of the gas circuit mode of the present invention.

Fig. 8 is a schematic view of another state structure of fig. 7 according to the present invention.

Fig. 9 is a schematic view of another gas path mode of the present invention.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

referring to fig. 1 to 6, an air cylinder driven type vacuum sealing machine comprises a shell, an air pump for generating negative pressure, a gland 3 and a heating strip 6 for sealing, wherein a packaging bag insertion opening 10 is formed in the shell, the gland 3 is movably arranged on the upper side of the packaging bag insertion opening 10 up and down, a cavity 23 is formed in the lower side of the packaging bag insertion opening 10, the heating strip 6 is arranged on the upper side or the lower side of the packaging bag insertion opening 10 and located beside the outer side of the cavity 23, an air cylinder for driving the gland 3 to descend is further arranged in the shell, and the air cylinder is driven by the negative pressure generated by the air pump; the gland 3 and the concave cavity 23 enclose an air exhaust cavity, and the air exhaust cavity is vacuumized by connecting negative pressure; the air pump includes a second vacuum pump 71 and a third vacuum pump 72, and the second vacuum pump 71 and the third vacuum pump 72 respectively provide negative pressure to the air cylinder and the suction cavity, as shown in fig. 7. Alternatively, the air pump includes a first vacuum pump 70, and the first vacuum pump 70 supplies negative pressure to the air cylinder and the suction chamber, as shown in fig. 9.

The air cylinder comprises a cylinder body 41, a piston 42 and a piston rod 43, the piston 42 is arranged in the cylinder body 41, a first sealing ring 46 is arranged on the periphery of the piston 42, the first sealing ring 46 is in sealing sliding fit with the inner wall of the cylinder body 41 and surrounds the lower part of the cylinder body 41 into a negative pressure cavity, and the negative pressure cavity is provided with negative pressure by an air pump; the piston rod 43 is connected to the bottom of the piston 42, the lower end of the piston rod 43 extends out of the bottom of the cylinder 41 and points to the top of the gland 3 or is in transmission connection with the gland 3, the second sealing ring 48 is arranged on the periphery of the piston rod 43, and the second sealing ring 48 is in sealing fit with the cylinder 41.

A limit boss 410 is arranged in the cylinder body 41 corresponding to the negative pressure cavity, an air cylinder pumping hole 49 communicated with the negative pressure cavity is formed in one side of the cylinder body 41, which is lower than the limit boss 410, and the air cylinder pumping hole 49 is communicated with an air pump.

An open port is formed at the top of the cylinder 41, and a compression spring 44 is disposed between the piston 42 and the bottom of the cylinder 41. The bottom of the piston 42 is also provided with an annular positioning groove 47 corresponding to the upper end of the compression spring 44, the compression spring 44 is sleeved outside the piston rod 43, and the upper end of the compression spring 44 abuts against the annular positioning groove 47.

The shell comprises a main machine shell 1 and a face cover 5, the main machine shell 1 is provided with an inner cavity 11, the inner cavity 11 is provided with a supporting step, the gland 3 is arranged in the inner cavity 11 and is supported on the supporting step through a supporting spring 36, and the gland 3 is in movable fit with the inner cavity 11 up and down; an inner cover 4 is fixedly arranged in the inner cavity 11 and corresponds to the upper part of the gland 3, the air cylinder is arranged on the inner cover 4, and the top cover 5 covers the top of the inner cavity 11; the bottom of main case 1 is equipped with notch 14 below the corresponding inner chamber 11, and it has end box 2 to peg graft in the notch 14, cavity 23 sets up on end box 2, forms between 2 upsides of end box and the notch 14 top wrapping bag inserted hole 10. The left end and the right end of the gland 3 are provided with outward flanges 33, the bottom surfaces of the outward flanges are provided with positioning columns 34, and the upper ends of the supporting springs 36 are matched with the positioning columns 34, which are not shown in the figure. The rear side of the cavity 23 is also provided with a limiting protrusion 24 to prevent the bag mouth of the packaging bag 20 from extending out of the rear of the cavity 23. The left side and the right side of the upper end of the bottom box 2 are provided with limiting lugs, and the width range between the limiting lugs is located within the width range of the concave cavity 23, so that the packaging bag 20 is prevented from being staggered left and right with the concave cavity.

The lower end of the piston rod 43 is provided with a buffer pad 45, and the outer diameter of the buffer pad 45 is larger than the diameter of the piston rod 43; the cushion 45 is connected to the piston rod 43 by screws, not shown.

The left cylinder and the right cylinder are arranged; the heating strip 6 is arranged at the bottom of the gland 3, and the bottom box 2 is provided with a heat-resisting soft pressing strip 21 corresponding to the heating strip 6.

The left end and the right end of the bottom of the gland 3 are provided with limiting pins 35; the left end and the right end of the bottom box 2 are provided with locking grooves 27 corresponding to the limiting pins 35, and when the gland 3 descends, the limiting pins 35 are inserted into the locking grooves 27; the left end and the right end of the notch 14 are both provided with guide rails 12 pointing forwards and backwards, and the guide rails 12 are provided with buckling positions 13; the left end and the right end of the bottom box 2 are provided with guide grooves 25 which are inserted with the guide rails 12, the guide grooves 25 are internally provided with convex buckles 26, and the convex buckles 26 are in pre-tightening buckling fit with the buckling positions 13.

The top surface of the bottom box 2 is provided with a lower sealing ring 22 corresponding to the periphery of the cavity 23, the bottom surface of the gland 3 is provided with an upper sealing ring 31 corresponding to the lower sealing ring 22, the gland 3 is provided with a vacuumizing channel 32, and one end of the vacuumizing channel 32 is led to the inner side of the area surrounded by the upper sealing ring 31.

The working principle is as follows: with reference to fig. 7, the bag mouth of the packaging bag 20 is inserted into the upper part of the concave cavity 23, the machine is started, the second vacuum pump 71 performs vacuum pumping, the air in the negative pressure cavity of the air cylinder is reduced, the piston 42 drives the piston rod 43 to move downwards, the lower end of the piston rod 43 contacts and presses the gland 3, the gland 3 moves downwards and encloses the concave cavity 23 to form a pumping cavity (the upper sealing ring 31 of the gland 3 is in sealing fit with the lower sealing ring 22 of the bottom box 2), and the air in the packaging bag 20 (vacuum packaging bag) with the bag mouth extending into the pumping cavity is pumped away under the action of the third vacuum pump 72; then, the heat generating strip 6 is activated, and the packing bag 20 is sealed.

Finally, the air passage for communicating the air cylinder with the air pumping cavity is communicated with the outside to realize pressure relief, the air cylinder resets under the action of the compression spring 44, the gland 3 resets under the action of the supporting spring 36, and the sealed packaging bag can be taken out.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but rather that various changes and modifications may be made without departing from the spirit and scope of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a cylinder drive formula vacuum capper, which comprises a housin, an air pump for producing the negative pressure, gland (3) and the strip (6) that generate heat that are used for sealing, be equipped with wrapping bag inserted hole (10) on the casing, the upper and lower both sides of wrapping bag inserted hole (10) are equipped with gland (3) and cavity (23) respectively, clearance fit about gland (3) or cavity (23) and the casing, the strip (6) that generate heat set up upside or the downside at wrapping bag inserted hole (10), and lie in the outside of cavity (23) other, its characterized in that: an air cylinder driven by negative pressure generated by the air pump is further arranged in the shell and is used for driving the gland (3) to move towards the direction of the concave cavity (23), or the air cylinder is used for driving the concave cavity (23) to move towards the direction of the gland; the gland (3) and the concave cavity (23) enclose an air pumping cavity, and the air pumping cavity is vacuumized by connecting negative pressure; the air pump comprises a first vacuum pump (70), and the first vacuum pump (70) provides negative pressure for the air cylinder and the air pumping cavity, or the air pump comprises a second vacuum pump (71) and a third vacuum pump (72), and the second vacuum pump (71) and the third vacuum pump (72) respectively provide negative pressure for the air cylinder and the air pumping cavity.

2. The cylinder-driven vacuum sealing machine according to claim 1, characterized in that: gland (3) activity about from top to bottom sets up the upside in wrapping bag inserted hole (10), and the downside of wrapping bag inserted hole (10) is equipped with end box (2), cavity (23) set up box (2) top surface at the end, and it sets up in gland (3) bottom or end box (2) top and is located the outside of cavity (23) other to generate heat strip (6), the cylinder is used for driving gland (3) and descends.

3. The cylinder-driven vacuum sealing machine according to claim 2, characterized in that: the air cylinder comprises a cylinder body (41), a piston (42) and a piston rod (43), the piston (42) is arranged in the cylinder body (41), a first sealing ring (46) is arranged on the periphery of the piston (42), the first sealing ring (46) is in sealing sliding fit with the inner wall of the cylinder body (41) and surrounds the lower part of the cylinder body (41) to form a negative pressure cavity, and negative pressure is provided for the negative pressure cavity by an air pump; the piston rod (43) is connected to the bottom of the piston (42), the lower end of the piston rod (43) extends out of the bottom of the cylinder body (41) and points to the top of the gland (3) or is in transmission connection with the gland (3), a second sealing ring (48) is arranged on the periphery of the piston rod (43), and the second sealing ring (48) is in sealing fit with the cylinder body (41).

4. The cylinder-driven vacuum sealing machine according to claim 3, characterized in that: a limiting boss (410) is arranged in the cylinder body (41) corresponding to the negative pressure cavity, an air cylinder pumping opening (49) communicated with the negative pressure cavity is formed in one side of the cylinder body (41) and is lower than the limiting boss (410), and the air cylinder pumping opening (49) is communicated with an air pump.

5. The cylinder-driven vacuum sealing machine according to claim 3, characterized in that: an open port is formed in the top of the cylinder body (41), and a compression spring (44) is arranged between the piston (42) and the bottom of the cylinder body (41).

6. The cylinder-driven vacuum sealing machine according to claim 1, characterized in that: the shell comprises a main case (1) and a face cover (5), the main case (1) is provided with an inner cavity (11), the inner cavity (11) is provided with a supporting step, the gland (3) is arranged in the inner cavity (11) and is supported on the supporting step through a supporting spring (36), and the gland (3) is vertically and movably matched with the inner cavity (11); an inner cover (4) is fixedly arranged in the inner cavity (11) and corresponds to the upper part of the gland (3), the cylinder is arranged on the inner cover (4), and the top cover (5) covers the top of the inner cavity (11); the bottom of the main case (1) is provided with a notch (14) below the corresponding inner cavity (11), the bottom box (2) is inserted into the notch (14), and the packaging bag insertion opening (10) is formed between the upper side of the bottom box (2) and the top of the notch (14).

7. The cylinder-driven vacuum sealing machine according to claim 3, wherein: the lower end of the piston rod (43) is provided with a buffer pad (45), and the outer diameter of the buffer pad (45) is larger than the diameter of the piston rod (43).

8. The cylinder-driven vacuum sealing machine according to claim 2, characterized in that: the left cylinder and the right cylinder are arranged; the heating strip (6) is arranged at the bottom of the gland (3), and the bottom box (2) is provided with a heat-resisting soft pressing strip (21) corresponding to the heating strip (6).

9. The cylinder-driven vacuum sealing machine according to claim 6, characterized in that: the left end and the right end of the bottom of the gland (3) are provided with limiting pins (35); the left end and the right end of the bottom box (2) are provided with locking grooves (27) corresponding to the limiting pins (35), and when the gland (3) descends, the limiting pins (35) are inserted into the locking grooves (27); the left end and the right end of the notch (14) are respectively provided with a guide rail (12) which points forwards and backwards, and the guide rail (12) is provided with a buckling position (13); the left end and the right end of the bottom box (2) are provided with guide grooves (25) which are inserted with the guide rails (12), the guide grooves (25) are internally provided with convex buckles (26), and the convex buckles (26) are in pre-tightening, buckling and matching with the buckle positions (13).

10. The cylinder-driven vacuum sealing machine according to claim 6, characterized in that: the top surface of end box (2) corresponds cavity (23) periphery and is equipped with lower sealing ring (22), the bottom surface of gland (3) corresponds lower sealing ring (22) and is equipped with upper sealing ring (31), is equipped with evacuation passageway (32) on gland (3), and the one end of evacuation passageway (32) leads to the regional inboard that upper sealing ring (31) surrounded.