Material pressing device of packaging machine

Abstract

The utility model relates to the technical field of material pressing devices, in particular to a material pressing device of a packaging machine. According to the technical scheme, the pressing plate assembly comprises a pressing plate bin, a stretching assembly, a winding shaft and straight strip plates, the stretching assembly is fixedly installed in the pressing plate bin, the winding shaft is arranged on the side portion of the stretching assembly, the straight strip plates are wound on the cambered surface of the winding shaft, the multiple straight strip plates are arranged, and the same belt is fixedly installed on the side portions of the multiple straight strip plates; the top of the pressing plate bin is fixedly connected with a material pressing hydraulic push rod, and materials are placed in the material pressing mold. The expansion hydraulic push rod extends out to enable the winding shaft to roll on the belt, the winding shaft rolls to unwind the wound belt, namely, the straight strip plates are unwound, the multiple straight strip plates form a pressing plate, the longer the extension length of the expansion hydraulic push rod is, the more the unwound straight strip plates are, and the larger the area of the pressing plate formed by the multiple straight strip plates is. And the adaptation of molds with different lengths is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of material pressing devices, in particular to a material pressing device for packaging machinery. Background Art

[0002] Packaging is to place the product in a container to protect it during the circulation process. The packaged product is easy to transport. The product needs to be pressed before being packaged. The material is processed into a laminated product with the desired shape and size through pressure. That is, the shape of the product is pressed into the shape of the packaging container so that the product can be packaged.

[0003] In the prior art, a product is placed in a mold, and a pressing device presses the product in the mold mechanically, pneumatically or hydraulically to press the product into the shape of the mold for packaging.

[0004] However, the pressing area of ​​this pressing device is fixed, and the product packaging is divided into various specifications, such as large box, medium box and small box. The pressing device can only press products of fixed specifications. Utility Model Content

[0005] The utility model aims to propose a packaging machinery pressing device to solve the problem that the pressing area of ​​the pressing device in the background technology is fixed and can only press products of fixed specifications.

[0006] The technical solution of the utility model: a packaging mechanical pressing device, comprising:

[0007] A pressing table, a pressing die is placed at the center of the top of the pressing table, a gantry is fixedly installed at the top and corner of the pressing table, and two symmetrically arranged pressing hydraulic push rods are fixedly installed at the bottom of the gantry;

[0008] The pressing plate assembly comprises a pressing plate bin, an extension assembly, a reel and a straight strip, wherein the extension assembly is fixedly installed inside the pressing plate bin, the reel is arranged on the side of the extension assembly, the straight strip is reeled on the arc surface of the reel, a plurality of straight strips are arranged, and the same belt is fixedly installed on the sides of the plurality of straight strips;

[0009] The top of the pressing plate bin is fixedly connected to the material pressing hydraulic push rod, the material is placed inside the material pressing mold, and a positioning component is arranged inside the pressing plate bin and above the straight strip plate.

[0010] Optionally, an integrally formed protrusion is fixedly mounted on the end of the straight strip, the protrusion at the end of the straight strip is mounted on the bottom inner wall of the pressing plate bin, and the middle part of the straight strip extends out from the bottom of the pressing plate bin.

[0011] Optionally, the plurality of straight strips are parallel to each other, two adjacent straight strips are in contact with each other, and the bottoms of the straight strips are in contact with the material in the pressing mold.

[0012] Optionally, the extension component includes an expansion hydraulic push rod and a push plate, the expansion hydraulic push rod is fixedly installed inside the pressure plate bin, the end of the expansion hydraulic push rod is fixedly installed with the push plate, and the end of the push plate is rotatably connected to the winding shaft.

[0013] Optionally, the positioning assembly includes a connecting square rod, a movable positioning plate and a fixed positioning plate, the two ends of the connecting square rod are respectively fixedly connected to the movable positioning plate and the push plate, and the interior of the movable positioning plate is slidably connected to the fixed positioning plate.

[0014] Optionally, two movable positioning plates are provided, the two movable positioning plates are symmetrical about the center line of the fixed positioning plate, the movable positioning plates adopt an inverted U-shaped structure, and the bottoms of the movable positioning plates and the fixed positioning plates are both slidably connected to the belt.

[0015] Optionally, the connecting square rod adopts an L-shaped structure, and a positioning slide is fixedly installed on the side of the movable positioning plate, and the movable positioning plate slides left and right on the inner wall of the pressure plate bin through the positioning slide.

[0016] Optionally, a center positioning block is fixedly installed in the middle of the pressure plate bin and located on the top of the belt, and the top of the center positioning block is fixedly connected to the expansion hydraulic push rod.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] The utility model extends the hydraulic push rod to make the winding shaft roll on the belt. As the winding shaft rolls, the wound belt is released, that is, a straight strip is released. A plurality of straight strips form a pressure plate. The longer the extended hydraulic push rod is, the more straight strips are released, and the larger the pressure plate area formed by the plurality of straight strips is, thereby achieving adaptation of molds of different lengths.

[0019] Furthermore, when the reel releases the straight strips, the push plate at the end of the reel simultaneously drives the connecting square rod to move, and the connecting square rod pulls the movable positioning plate to extend the overall length of the movable positioning plate and the fixed positioning plate to adapt to the length of the pressure plate formed by the unfolding of multiple straight strips, and is used in conjunction with the center positioning block to jointly position the straight strips to avoid movement during pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the overall structure of an embodiment of the utility model is given;

[0021] Figure 2 A schematic diagram of the straight strip structure of an embodiment of the utility model is given;

[0022] Figure 3 for Figure 2 A part of the enlarged schematic diagram of the connecting square rod structure;

[0023] Figure 4 A schematic front and cross-sectional view of a pressure plate bin structure of an embodiment of the utility model is given.

[0024] Figure numerals: 1. Pressing table; 2. Pressing mold; 3. Gantry; 4. Pressing hydraulic push rod; 5. Pressing plate assembly; 51. Pressing plate bin; 52. Expanded hydraulic push rod; 53. Push plate; 54. Reel; 55. Straight plate; 56. Belt; 6. Positioning assembly; 61. Connecting square rod; 62. Movable positioning plate; 63. Fixed positioning plate; 64. Positioning slide; 65. Center positioning block. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0027] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example 1

[0031] This embodiment provides a packaging machine pressing device, such as Figure 1 As shown, it includes a pressing table 1, a pressing die 2 is placed at the top center of the pressing table 1, a gantry 3 is fixedly installed at the top and corner of the pressing table 1, two symmetrically arranged pressing hydraulic push rods 4 are fixedly installed at the bottom of the gantry 3, and materials are placed inside the pressing die 2;

[0032] like Figure 2 and 4 As shown, a pressing plate assembly 5 is provided at the bottom of the material pressing hydraulic push rod 4, including a pressing plate bin 51, an extension assembly, a reel 54 and a straight strip 55. The top of the pressing plate bin 51 is fixedly connected to the material pressing hydraulic push rod 4. The extension assembly includes an expansion hydraulic push rod 52 and a push plate 53. The expansion hydraulic push rod 52 is fixedly installed inside the pressing plate bin 51. The end of the expansion hydraulic push rod 52 is fixedly installed with a push plate 53, and the end of the push plate 53 is rotatably connected to the reel 54. The straight strip 55 is reeled at the arc surface of the reel 54. A plurality of straight strips 55 are provided, and the plurality of straight strips 55 are parallel to each other. Two adjacent straight strips 55 fit each other to reduce the distance between the two adjacent straight strips 55. The same belt 56 is fixedly installed on the sides of the plurality of straight strips 55.

[0033] The hydraulic push rod 52 is extended and the push plate 53 is used to rotate the reel 54, so that the belt 56 rolled up by the reel 54 is released. The reel 54 unfolds the straight strip 55 by releasing the belt 56. The straight strip 55 is expanded to increase the pressing area to adapt to molds of different sizes.

[0034] like Figure 2 As shown, an integrally formed protrusion is fixedly installed at the end of the straight strip 55, and the protrusion at the end of the straight strip 55 is mounted on the bottom inner wall of the pressure plate bin 51. The protrusion is mounted on the inner wall of the pressure plate bin 51 to make multiple straight strips 55 flush.

[0035] The middle part of the straight strip 55 extends from the bottom of the pressing plate bin 51, and the bottom of the straight strip 55 contacts the material in the pressing die 2. The pressing hydraulic push rod 4 extends to move the pressing plate bin 51 downward, and the pressing plate bin 51 drives the straight strip 55 to move downward, and the straight strip 55 and the pressing die 2 cooperate to extrude the material.

[0036] In this embodiment, the hydraulic push rod 52 is extended and adjusted to extend so that the winding shaft 54 ​​releases the belt 56, thereby releasing the straight strip 55. Multiple straight strips 55 form a pressure plate to achieve the adaptation of molds of different lengths. The protrusions at the ends of the straight strips 55 set the pressure plate composed of the straight strips 55 on the bottom of the pressure plate bin 51. The pressing hydraulic push rod 4 is extended to drive the pressure plate bin 51 to move, so that the straight strips 55 and the pressing mold 2 can press the material together.

[0037] Example 2

[0038] Based on Example 1, this embodiment proposes a packaging machine pressing device, such as Figure 3 and 4 As shown, a positioning assembly 6 is provided inside the pressure plate bin 51 and above the straight strip plate 55. The positioning assembly 6 includes a connecting square rod 61, a movable positioning plate 62 and a fixed positioning plate 63. The connecting square rod 61 adopts an L-shaped structure. The two ends of the connecting square rod 61 are respectively fixedly connected to the movable positioning plate 62 and the push plate 53. The interior of the movable positioning plate 62 is slidably connected to the fixed positioning plate 63.

[0039] When the hydraulic push rod 52 is extended, the push plate 53 drives the movable positioning plate 62 to move by means of the connecting square rod 61 , and the movable positioning plate 62 slides on the fixed positioning plate 63 , thereby extending the overall length of the movable positioning plate 62 and the fixed positioning plate 63 .

[0040] like Figure 2 As shown, two movable positioning plates 62 are provided, and the two movable positioning plates 62 are symmetrical about the midline of the fixed positioning plate 63. The movable positioning plates 62 adopt an inverted U-shaped structure, and the bottoms of the movable positioning plates 62 and the fixed positioning plates 63 are both slidably connected to the belt 56. The fixed positioning plate 63 slides on the movable positioning plates 62, and the bottoms of the movable positioning plates 62 and the fixed positioning plates 63 are always pressed on the top of the straight strip plate 55 forming the pressing plate, so as to prevent the straight strip plate 55 from being pushed up by the material when the material is pressed.

[0041] A positioning slide bar 64 is fixedly installed on the side of the movable positioning plate 62, and the movable positioning plate 62 slides left and right on the inner wall of the pressing plate bin 51 through the positioning slide bar 64. The positioning slide bar 64 clamps the movable positioning plate 62 into the inner wall of the pressing plate bin 51 so that it is always parallel to the horizontal plane. A center positioning block 65 is fixedly installed in the middle of the pressing plate bin 51 and located on the top of the belt 56. The top of the center positioning block 65 is fixedly connected to the expansion hydraulic push rod 52, and the center positioning block 65 positions the middle of the straight strip plate 55.

[0042] When the material is pressed, since two adjacent straight strips 55 are connected by the belt 56, the straight strip 55 not positioned by the movable positioning plate 62 and the fixed positioning plate 63 is lifted up by the pressing die 2 and will not be stuck.

[0043] In this embodiment, when the winding shaft 54 ​​releases the straight strip 55, the push plate 53 at the end of the winding shaft 54 ​​simultaneously drives the connecting square rod 61 to move, and the connecting square rod 61 pulls the movable positioning plate 62 to extend the overall length of the movable positioning plate 62 and the fixed positioning plate 63 to adapt to the length of the pressure plate formed by the unfolding of multiple straight strips 55, and is used in conjunction with the central positioning block 65 to jointly position the straight strips 55 to avoid movement during pressing.

[0044] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A packaging machine pressing device, characterized in that: include: A material pressing platform (1), a material pressing mold (2) is placed at the center of the top of the material pressing platform (1), a gantry (3) is fixedly installed at the top and at the corner of the material pressing platform (1), and two symmetrically arranged material pressing hydraulic push rods (4) are fixedly installed at the bottom of the gantry (3); The pressing plate assembly (5) comprises a pressing plate bin (51), an extension assembly, a reel (54) and a straight strip (55); the extension assembly is fixedly installed inside the pressing plate bin (51); the reel (54) is arranged on the side of the extension assembly; the straight strip (55) is reeled on the arc surface of the reel (54); a plurality of straight strips (55) are arranged, and the same belt (56) is fixedly installed on the sides of the plurality of straight strips (55); The top of the pressing plate bin (51) is fixedly connected to the material pressing hydraulic push rod (4), the material is placed inside the material pressing mold (2), and a positioning component (6) is arranged inside the pressing plate bin (51) and above the straight strip plate (55).

2. A packaging machine pressing device according to claim 1, characterized in that: An integrally formed protrusion is fixedly mounted at the end of the straight strip (55), the protrusion at the end of the straight strip (55) is mounted on the bottom inner wall of the pressure plate bin (51), and the middle portion of the straight strip (55) extends out from the bottom of the pressure plate bin (51).

3. A packaging machine pressing device according to claim 1, characterized in that: The plurality of straight strips (55) are parallel to each other, two adjacent straight strips (55) are in contact with each other, and the bottoms of the straight strips (55) are in contact with the material in the pressing mold (2).

4. A packaging machine pressing device according to claim 1, characterized in that: The extension assembly comprises an expansion hydraulic push rod (52) and a push plate (53), wherein the expansion hydraulic push rod (52) is fixedly installed inside the pressure plate bin (51), the end of the expansion hydraulic push rod (52) is fixedly installed with the push plate (53), and the end of the push plate (53) is rotatably connected to the winding shaft (54).

5. A packaging machine pressing device according to claim 4, characterized in that: The positioning assembly (6) comprises a connecting square rod (61), a movable positioning plate (62) and a fixed positioning plate (63); the two ends of the connecting square rod (61) are respectively fixedly connected to the movable positioning plate (62) and the push plate (53); the interior of the movable positioning plate (62) is slidably connected to the fixed positioning plate (63).

6. A packaging machine pressing device according to claim 5, characterized in that: Two movable positioning plates (62) are provided, and the two movable positioning plates (62) are symmetrical about the center line of the fixed positioning plate (63). The movable positioning plates (62) adopt an inverted U-shaped structure, and the bottoms of the movable positioning plates (62) and the fixed positioning plates (63) are both slidably connected to the belt (56).

7. A packaging machine pressing device according to claim 6, characterized in that: The connecting square rod (61) adopts an L-shaped structure, and a positioning slide bar (64) is fixedly installed on the side of the movable positioning plate (62). The movable positioning plate (62) slides left and right on the inner wall of the pressure plate bin (51) through the positioning slide bar (64).

8. A packaging machine pressing device according to claim 7, characterized in that: A center positioning block (65) is fixedly installed in the middle of the pressure plate bin (51) and located on the top of the belt (56), and the top of the center positioning block (65) is fixedly connected to the expansion hydraulic push rod (52).

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