Film pressing device used for sealing machine and facilitating mold replacement

Abstract

The invention discloses a sealing machine film pressing device facilitating mold replacement, and relates to the technical field of sealing machines. The film pressing device comprises a storage base, a film pressing drive, a film pressing rod, a built-in base and a mold, the film pressing drive comprises a rotating air cylinder, a pressing disc of a disc-shaped structure is fixed to the output end of the rotating air cylinder, the connecting point of the rotating air cylinder and the pressing disc is located at the edge of the end face of the pressing disc, and the peripheral side face of the pressing disc is rotationally connected with an outer ring through a bearing; the film pressing rod comprises a connecting disc, an outer sleeve and an inner core rod, an end plate is fixed to the top end of the outer sleeve, a limiting edge matched with the limiting groove is arranged at the top of the end plate, an outer ring is attached to the outer surface of the end plate, and a backing ring is arranged on the peripheral side face of the outer sleeve. By designing the novel film pressing device, the upper die body and the lower die body are convenient to replace, and the sealing machine does not need to be dismounted, so that the sealing machine is suitable for being used by more dies of different specifications and types, and the application range, replacement efficiency and assembly precision of the sealing machine are greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sealing machines, and in particular relates to a film pressing device for sealing machines which is convenient for mold replacement. Background Art

[0002] The existing sealing machine is provided with holes on the storage seat for positioning the cup or box, and a lifting cylinder and other mechanisms are provided inside the sealing machine for lifting and driving the film pressing rod, and a mold is provided at the end of the film pressing rod for trimming and heat sealing.

[0003] When using the same type of packaging boxes / cups with different specifications, different types of packaging boxes / cups, and different quantities of packaging boxes / cups, a new sealing machine is needed, but the cost is too high. If a single sealing machine is to be modified, the mold and even the storage seat of the sealing machine need to be removed and replaced. Due to the presence of the packaging film roll and the guide mold rod, the sealing machine chassis needs to be removed during replacement, and then dismantled and installed again, which results in low work efficiency.

[0004] The main body of the lifting drive mechanism of the existing sealing machine is a cylinder, but it needs to match the upper and lower proximity sensors to control the lifting distance. If different molds are replaced, the lifting distance and the height of the bottom end of the film pressing rod may change. Correspondingly, the position of the proximity sensor needs to be adjusted, which further increases the difficulty and is prone to insufficient accuracy. Summary of the invention

[0005] The purpose of the present invention is to provide a film pressing device for a sealing machine which is convenient for mold replacement. By designing a new type of film pressing device, it is convenient to replace the upper mold body and the lower mold body without dismantling the sealing machine. Therefore, it is suitable for use with more molds of different specifications and types, greatly improving the application range, replacement efficiency and assembly accuracy of the sealing machine.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a film pressing device for a sealing machine which is convenient for replacing molds, comprising a storage seat, a film pressing drive, a film pressing rod, an inner base of the machine and a mold; The film pressing drive comprises a rotating cylinder, a disc-shaped pressure plate is fixed at the output end of the rotating cylinder, the connection point between the rotating cylinder and the pressure plate is located at the edge of the end surface of the pressure plate, the peripheral side of the pressure plate is rotatably connected to an outer ring through a bearing, and the peripheral side of the outer ring is provided with a limiting groove; The film pressing rod comprises a connecting plate, an outer casing and an inner core rod; An end plate is fixed to the top of the outer casing, a limiting edge is provided on the top of the end plate to match the limiting groove, the outer ring is fitted with the outer surface of the end plate, and a gasket is provided on the side surface of the outer casing; The bottom end of the outer casing penetrates the inner base, a spring is fixed between the gasket and the inner base, an upper fastening screw is provided on the outer casing and between the end plate and the gasket, the inner core rod is fixed in the outer casing by the upper fastening screw, a square end is fixed at the bottom end of the inner core rod, and a groove is provided on one side of the square end; A square sleeve is fixed on the top of the connection plate, a clearance groove is provided on one side of the square sleeve, a lower fastening screw opposite to the clearance groove is provided on the peripheral side of the square sleeve, the square end gap is set in the square sleeve, and the square end is fixed to the square sleeve through the lower fastening screw and the groove; The mold comprises an upper mold body and a lower mold body, a connecting seat is provided on the top of the upper mold body, and the connecting seat is fixed to the connecting plate by a fastener; An opening is provided on the storage seat, and transverse fastening edges are provided on both sides of the opening. A longitudinal fastening edge is fixed between the two transverse fastening edges. A mold base is provided at the bottom of the lower mold body, and the mold base is fixed to the top of the two longitudinal fastening edges by fasteners.

[0007] Furthermore, threaded sleeves are fixedly penetrated on the peripheral side of the square sleeve and the peripheral side of the outer sleeve body, and the upper fastening screw and the lower fastening screw penetrate the threaded sleeves on the square sleeve and the outer sleeve body respectively.

[0008] Furthermore, a guide sleeve is fixed to the outer end of the threaded sleeve, and a tapered end is provided at the end of the guide sleeve.

[0009] Furthermore, an upper cushion column is provided at the end of the upper fastening screw, and a straight groove is provided on the peripheral side surface of the top end of the inner core rod, and the straight groove is opposite to the upper fastening screw.

[0010] Furthermore, a lower cushion column is provided at the end of the lower fastening screw, and the lower cushion column is clearance-matched with the groove.

[0011] Furthermore, the transverse fastening edge and the longitudinal fastening edge are both provided with strip grooves along the length direction, the end of the longitudinal fastening edge is fixed to the transverse fastening edge through fasteners and the strip grooves, and the four corners of the mold base are fixed to the longitudinal fastening edge through fasteners and the strip grooves.

[0012] Furthermore, a heat sealing joint is provided on the upper mold body, an adapter is fixed on the top of the connecting plate, the heat sealing joint is electrically connected to the adapter, and a quick connector is electrically connected to the adapter via a soft wire.

[0013] Furthermore, a lower folding edge is provided on the front side of the storage seat, and a connecting area is provided on the rear side of the storage seat.

[0014] Furthermore, the storage seat is provided with a hole, and the lower mold body is arranged on the storage seat and cooperates with the hole.

[0015] The present invention has the following beneficial effects: 1. The present invention designs a novel film pressing device to facilitate the replacement of the upper mold body and the lower mold body without dismantling the sealing machine, so that it is suitable for use with more molds of different specifications and types, greatly improving the application range, replacement efficiency and assembly accuracy of the sealing machine.

[0016] 2. The present invention adopts the design of a retractable film pressing rod, which can quickly adapt to the height deviation of the film pressing rod, thereby improving assembly accuracy and efficiency. It cooperates with a cam-type film pressing drive and is equipped with a 180-degree or 90-degree fixed stroke cylinder. It does not need to be equipped with upper and lower proximity switches, ensuring that the lifting length of the film pressing rod is constant, so that no other adjustments are required after changing the mold, thereby improving the film pressing efficiency and quality.

[0017] 3. The present invention adopts the design of a novel storage seat, and the design of the longitudinal fastening edge and the transverse fastening edge can be suitable for the installation of lower mold bodies of different specifications and types, has a wide range of applications and can improve assembly accuracy and efficiency.

[0018] 4. The present invention provides threaded sleeves, guide sleeves and cone ends outside the upper fastening screws and the lower fastening screws, thereby facilitating the positioning of long tools, and facilitating the operation of the upper fastening screws and the lower fastening screws without disassembling the sealing machine chassis, thereby facilitating operation.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a film pressing device for a sealing machine that facilitates mold replacement according to the present invention; Figure 2 It is a structural cross-sectional view of the present invention; Figure 3 It is a structural schematic diagram of the film pressing drive, outer casing, inner core rod and inner base of the machine; Figure 4 It is a structural schematic diagram of the connecting plate and the upper mold body; Figure 5 It is a schematic diagram of the structure of the storage seat and the lower mold body; In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-storage seat, 2-film pressing drive, 3-film pressing rod, 4-machine base, 5-mold, 6-spring, 101-opening, 102-transverse fastening edge, 103-longitudinal fastening edge, 104-strip groove, 105-lower folding edge, 106-hole position, 201-rotating cylinder, 202-pressure plate, 203-outer ring, 204-limiting groove, 301-connecting plate, 302-outer shell, 303-inner core rod, 304-end plate, 305-limiting edge, 306-gasket, 307-upper fastening screw, 308-square end, 309-groove, 310-square sleeve, 311-gap groove, 312-lower fastening screw, 313-threaded sleeve, 314-guide sleeve, 315-conical end, 316-upper cushion column, 317-straight groove, 318-lower cushion column, 319-adapter, 320-quick connector, 501-upper mold body, 502-lower mold body, 503-connecting seat, 504-mold base, 505-heat sealing joint. DETAILED DESCRIPTION

[0022] 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-5 As shown, the present invention is a film pressing device for a sealing machine that is convenient for mold replacement, comprising a storage seat 1, a film pressing drive 2, a film pressing rod 3, an inner base 4 and a mold 5; The film pressing drive 2 includes a rotating cylinder 201, a disc-shaped pressure plate 202 is fixed at the output end of the rotating cylinder 201, the connection point between the rotating cylinder 201 and the pressure plate 202 is located at the edge of the end surface of the pressure plate 202, the side surface of the pressure plate 202 is rotatably connected to an outer ring 203 through a bearing, and a limiting groove 204 is provided on the side surface of the outer ring 203; The film pressing rod 3 includes a connecting plate 301, an outer casing 302 and an inner core rod 303; An end plate 304 is fixed to the top of the outer casing 302. A limit edge 305 is provided on the top of the end plate 304 to match the limit groove 204. The outer ring 203 fits the outer surface of the end plate 304. A gasket 306 is provided on the side of the outer casing 302. The bottom end of the outer shell 302 passes through the inner base 4, a spring 6 is fixed between the gasket 306 and the inner base 4, an upper fastening screw 307 is provided on the outer shell 302 and between the end plate 304 and the gasket 306, the inner core rod 303 is fixed in the outer shell 302 by the upper fastening screw 307, a square end 308 is fixed at the bottom end of the inner core rod 303, and a groove 309 is provided on one side of the square end 308; A square sleeve 310 is fixed on the top of the connecting plate 301, a clearance groove 311 is provided on one side of the square sleeve 310, and a lower fastening screw 312 opposite to the clearance groove 311 is provided on the side surface of the square sleeve 310. The square end 308 is spaced in the square sleeve 310, and the square end 308 is fixed to the square sleeve 310 through the lower fastening screw 312 and the groove 309; The mold 5 includes an upper mold body 501 and a lower mold body 502. A connecting seat 503 is provided on the top of the upper mold body 501. The connecting seat 503 is fixed to the connecting plate 301 by fasteners. The storage seat 1 is provided with an opening 101, and transverse fastening edges 102 are provided on both sides of the opening 101. A longitudinal fastening edge 103 is fixed between the two transverse fastening edges 102. A mold base 504 is provided at the bottom of the lower mold body 502, and the mold base 504 is fixed to the top of the two longitudinal fastening edges 103 by fasteners.

[0024] Among them Figure 1-4 As shown, threaded sleeves 313 are penetrated and fixed on the side surfaces of the square sleeve 310 and the outer sleeve 302 , and the upper fastening screws 307 and the lower fastening screws 312 penetrate the threaded sleeves 313 on the square sleeve 310 and the outer sleeve 302 , respectively.

[0025] Among them Figure 1-4 As shown, a guide sleeve 314 is fixed to the outer end of the threaded sleeve 313 , and a cone end 315 is provided at the end of the guide sleeve 314 .

[0026] Among them Figure 2 As shown, an upper cushion column 316 is provided at the end of the upper fastening screw 307, and a straight groove 317 is provided on the peripheral side surface of the top end of the inner core rod 303, and the straight groove 317 is opposite to the upper fastening screw 307.

[0027] Among them Figure 2-3 As shown, a lower cushion column 318 is provided at the end of the lower fastening screw 312 , and the lower cushion column 318 is clearance-matched with the groove 309 .

[0028] Among them Figure 1-2 and Figure 5 As shown, strip grooves 104 are provided on the transverse fastening edge 102 and the longitudinal fastening edge 103 along the length direction, the end of the longitudinal fastening edge 103 is fixed to the transverse fastening edge 102 through fasteners and the strip grooves 104, and the four corners of the mold base 504 are fixed to the longitudinal fastening edge 103 through fasteners and the strip grooves 104.

[0029] Among them Figure 1 and Figure 4 As shown, a heat sealing joint 505 is provided on the upper mold body 501, and an adapter 319 is fixed on the top of the connecting plate 301. The heat sealing joint 505 is electrically connected to the adapter 319, and the adapter 319 is electrically connected to a quick connector 320 through a soft wire.

[0030] Among them Figure 1-2 and Figure 5 As shown, a lower folding edge 105 is provided on the front side of the storage seat 1, and a connecting area is provided on the rear side of the storage seat 1.

[0031] Among them Figure 1-2 and Figure 5 As shown, a hole 106 is provided on the storage seat 1 , and the lower mold body 502 is disposed on the storage seat 1 and matched with the hole 106 .

[0032] The working principle of the present invention is: The installation method of the mold 5 of the present invention comprises the following steps: SS01 controls the storage seat 1 to be at the outer side of the sealing machine as the material discharge position, takes out the lower mold body 502 to be installed, passes the fasteners through the connection points of the transverse fastening edge 102, the longitudinal fastening edge 103 and the mold base 504 of the lower mold body 502 and does not tighten them, and the lower mold body 502 is in a position adjustable state; SS02 Fit the upper mold body 501 equipped with the connection plate 301 on the top of the lower mold body 502 to define the circumferential limit between the upper mold body 501 and the lower mold body 502, and connect the heat sealing joint 505 of the upper mold body 501 with the adapter 319, and connect the quick connector 320 with the temperature control line in the sealing machine (install the joint of the temperature control line at the front edge of one side plate of the sealing machine); SS03 controls the storage seat 1 to be in the sealing position in the sealing machine, passes a long tool through the guide sleeve 314 outside the upper fastening screw 307 and screws the upper fastening screw 307 to separate the inner core rod 303 and the outer sleeve 302, and adjusts the positions of the upper mold body 501 and the lower mold body 502 to ensure that the square end 308 is placed in the square sleeve 310; SS04 uses a long tool to pass through the guide sleeve 314 outside the lower fastening screw 312 and tighten the lower fastening screw 312, so that the lower cushion column 318 extends into the groove 309 to achieve the fixation between the inner core rod 303 and the connecting plate 301, that is, to achieve the fixation between the lower mold body 502 and the inner core rod 303; SS05 controls the rotating cylinder 201 to start, so that the film pressing rod 3 is located at the bottom of the sealing machine in the film pressing state, and the upper fastening screw 307 is screwed again by the long tool to achieve the fastening between the inner core rod 303 and the outer shell 302, so as to achieve the positioning and fastening of the upper mold body 501; SS06 Tighten the two fasteners of the transverse fastening edge 102 close to the lower folding edge 105, and tighten the fasteners of the longitudinal fastening edge 103 close to the lower folding edge 105 to achieve pre-fixation of the lower mold body 502; SS07 controls the rotary cylinder 201 to start resetting, separates the upper mold body 501 and the lower mold body 502, and then controls the placement seat 1 to move to the outside of the sealing machine to be in the discharge device, tightens the untightened fasteners on the transverse fastening edge 102 and the longitudinal fastening edge 103, and realizes the positioning and fastening of the lower mold body 502.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A film pressing device for a sealing machine that facilitates mold replacement, comprising a storage seat (1), a film pressing drive (2), a film pressing rod (3), an inner base (4) and a mold (5), characterized in that: The film pressing drive (2) comprises a rotating cylinder (201), a disc-shaped pressure plate (202) is fixed to the output end of the rotating cylinder (201), the connection point between the rotating cylinder (201) and the pressure plate (202) is located at the edge of the end surface of the pressure plate (202), the peripheral side surface of the pressure plate (202) is rotatably connected to an outer ring (203) via a bearing, and a limiting groove (204) is provided on the peripheral side surface of the outer ring (203); The film pressing rod (3) comprises a connecting plate (301), an outer shell (302) and an inner core rod (303); An end plate (304) is fixed to the top of the outer casing (302), a limiting edge (305) matching the limiting groove (204) is provided on the top of the end plate (304), the outer ring (203) is fitted with the outer surface of the end plate (304), and a gasket (306) is provided on the side surface of the outer casing (302); The bottom end of the outer shell (302) passes through the inner base (4); a spring (6) is fixed between the gasket (306) and the inner base (4); an upper fastening screw (307) is provided on the outer shell (302) and between the end plate (304) and the gasket (306); the inner core rod (303) is fixed in the outer shell (302) by the upper fastening screw (307); a square end (308) is fixed at the bottom end of the inner core rod (303); a groove (309) is provided on one side of the square end (308); A square sleeve (310) is fixed on the top of the connection plate (301), a clearance groove (311) is provided on one side of the square sleeve (310), a lower fastening screw (312) opposite to the clearance groove (311) is provided on the peripheral side of the square sleeve (310), the square end (308) is spaced in the square sleeve (310), and the square end (308) is fixed to the square sleeve (310) via the lower fastening screw (312) and the groove (309); The mold (5) comprises an upper mold body (501) and a lower mold body (502); a connecting seat (503) is provided on the top of the upper mold body (501); and the connecting seat (503) is fixed to the connecting plate (301) by means of a fastener; The storage seat (1) is provided with an opening (101), and transverse fastening edges (102) are provided on both sides of the opening (101), and a longitudinal fastening edge (103) is fixed between the two transverse fastening edges (102). A mold base (504) is provided at the bottom of the lower mold body (502), and the mold base (504) is fixed to the top of the two longitudinal fastening edges (103) by fasteners.

2. A film pressing device for a sealing machine that facilitates mold replacement according to claim 1, characterized in that: The circumferential side surfaces of the square sleeve (310) and the circumferential side surfaces of the outer casing (302) are both penetrated and fixed with threaded sleeves (313), and the upper fastening screws (307) and the lower fastening screws (312) penetrate the threaded sleeves (313) on the square sleeve (310) and the outer casing (302), respectively.

3. A film pressing device for a sealing machine that facilitates mold replacement according to claim 2, characterized in that: A guide sleeve (314) is fixed to the outer end of the threaded sleeve (313), and a cone end (315) is provided at the end of the guide sleeve (314).

4. The film pressing device for a sealing machine that facilitates mold replacement according to claim 1, characterized in that: An upper cushion column (316) is provided at the end of the upper fastening screw (307), and a straight groove (317) is provided on the peripheral side surface of the top end of the inner core rod (303), and the straight groove (317) is located opposite to the upper fastening screw (307).

5. The film pressing device for a sealing machine that facilitates mold replacement according to claim 1, characterized in that: A lower cushion column (318) is provided at the end of the lower fastening screw (312), and the lower cushion column (318) is clearance-matched with the groove (309).

6. The film pressing device for a sealing machine that facilitates mold replacement according to claim 1, characterized in that: The transverse fastening edge (102) and the longitudinal fastening edge (103) are both provided with strip grooves (104) along the length direction; the end of the longitudinal fastening edge (103) is fixed to the transverse fastening edge (102) via fasteners and the strip grooves (104); and the four corners of the mold base (504) are fixed to the longitudinal fastening edge (103) via fasteners and the strip grooves (104).

7. The film pressing device for a sealing machine that facilitates mold replacement according to claim 1, characterized in that: The upper mold body (501) is provided with a heat-sealing joint (505), a switching joint (319) is fixed on the top of the connection plate (301), the heat-sealing joint (505) is electrically connected to the switching joint (319), and the switching joint (319) is electrically connected to a quick connector (320) via a soft wire.

8. The film pressing device for a sealing machine that facilitates mold replacement according to claim 1, characterized in that: The front side of the storage seat (1) is provided with a lower folded edge (105), and the rear side of the storage seat (1) is provided with a connection area.

9. The film pressing device for a sealing machine that facilitates mold replacement according to claim 1, characterized in that: The storage seat (1) is provided with a hole (106), and the lower mold body (502) is arranged on the storage seat (1) and cooperates with the hole (106).

Images