Pin edge pressing device

Abstract

This utility model provides a pin-pressing device, comprising: an adsorption mechanism, wherein the adsorption plate of the adsorption mechanism is used to adsorb the upper and lower sides of the bag opening to keep the bag opening in an open state; an opening mechanism, wherein the support block of the opening mechanism can open the bag opening into a rectangle; a gathering mechanism, wherein the forming plate of the gathering mechanism is used to abut against the two sides of the bag opening opened into a rectangle, thereby gathering the two sides of the packaging bag inward; a heat sealing mechanism, wherein the heating plate of the heat sealing mechanism is used to clamp and heat seal the bag opening; a cutting mechanism, wherein the cutting blade is used to cut off the excess part of the bag opening after heat sealing; and a waste suction mechanism, wherein the waste suction port of the waste suction mechanism is used to remove the cut-off excess part; wherein the heating plate, the cutting blade, the adsorption plate, and the waste suction port are arranged sequentially from near to far along the direction of the bag opening, the support block and the waste suction port are on the same vertical plane, and the waste suction port is located between the two support blocks. The functional mechanisms of this pin-pressing device are rationally arranged, which can reduce the waste of packaging materials.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a pin pressing device. Background Technology

[0002] In existing technologies, automated packaging equipment is often used to package products. After the product enters the packaging bag, it is transferred from the previous process to the edge-pressing device for shaping, heat sealing, and waste removal. The edge-pressing device typically includes an opening mechanism, an adsorption mechanism, a gathering mechanism, a heat sealing mechanism, and a waste removal mechanism. The adsorption mechanism adsorbs the upper and lower layers of the bag opening to open the bag opening. The opening mechanism fixes the four corners of the opened bag opening to form a rectangular opening. The gathering mechanism abuts against the two sides of the packaging bag to gather the two sides of the bag opening inward. The heat sealing mechanism clamps and heat seals the bag opening from top to bottom. The cutting mechanism cuts off the excess part after heat sealing. The waste removal mechanism adsorbs and collects the cut-off part.

[0003] However, the relative positions of the functional mechanisms in the existing pin-pressing device are unreasonable. The sequence of the mechanisms, arranged from the direction of the bag opening, is: heat sealing mechanism, cutting mechanism, waste suction mechanism, adsorption mechanism, and spreading mechanism. This results in a longer allowance for the length of the packaging bag and more waste material being cut off, leading to a waste of packaging materials. Therefore, it is necessary to improve the pin-pressing device. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the purpose of this utility model is to provide a pin-pressing device with a rationally arranged functional structure that can reduce waste of packaging materials.

[0005] To achieve the above objectives, this utility model proposes a pin pressing device, comprising:

[0006] An adsorption mechanism, comprising a pair of openable and closable adsorption plates, which are used to adsorb on the upper and lower sides of the bag opening so that the bag opening of the packaging bag is in an open state.

[0007] An opening mechanism, comprising support blocks distributed at the four corners of the bag opening, the support blocks being able to open the bag opening into a rectangle;

[0008] A gathering mechanism, the gathering mechanism including a pair of openable and closable forming plates, the forming plates being used to abut against the two sides of the bag opening which is stretched into a rectangle, thereby causing the two sides of the packaging bag to gather inward.

[0009] A heat-sealing mechanism, comprising a pair of openable and closable heating plates for clamping and heat-sealing the bag opening;

[0010] A cutting mechanism, comprising a cutter for removing excess portion of the bag opening after heat sealing;

[0011] A waste suction mechanism, the waste suction mechanism including a waste suction port, the waste suction port being used to remove the cut-off excess portion;

[0012] The heating plate, the cutter, the adsorption plate, and the waste suction port are arranged sequentially from near to far along the direction of the bag opening. The support block and the waste suction port are on the same vertical plane, and the waste suction port is located between the support blocks on both sides.

[0013] According to an embodiment of this utility model, a pin-pressing device uses an adsorption mechanism to adsorb the top and bottom sides of the bag opening, initially opening the bag opening. An opening mechanism then fixes the initially opened bag opening, making it rectangular. A closing mechanism closes the two sides of the bag opening inwards. A heat-sealing mechanism clamps the bag opening, aligning the folded edges of the upper and lower layers and heat-sealing it. A cutting mechanism cuts off the excess portion of the bag opening after heat sealing, and a waste-absorbing mechanism removes the cut waste. Furthermore, by arranging the heat-sealing mechanism, cutting mechanism, adsorption mechanism, and waste-absorbing mechanism relative to the bag opening from near to far, and by placing the opening mechanism and waste-absorbing mechanism on the same vertical plane, the heat-sealed opening of the bag can be closer to the product inside the bag, and less material can be left outside the heat-sealed opening, thus saving on bag material.

[0014] In addition, the pin pressing device proposed in the above embodiments of this utility model may also have the following additional technical features:

[0015] Optionally, the molding plate is provided with a first air blowing part that blows air toward both sides of the bag opening, and the air blowing holes of the first air blowing part are located at the end of the molding plate.

[0016] Furthermore, the gathering mechanism also includes a second air blowing section that blows air toward both sides of the bag opening. The second air blowing section is connected to the forming plate, and the air blowing holes of the second air blowing section are arranged along the direction of the bag opening.

[0017] Optionally, the spreading mechanism includes a driving member connected to the support block to drive the support block to move up and down and rotate, thereby switching the support block between a working position and an avoidance position.

[0018] Furthermore, the driving component is a spinning cylinder.

[0019] Furthermore, the support block includes a long side and a short side, the long side connecting the short side to form a hook-shaped support block, the short side connecting the drive member, and the long side abutting against the inner wall of the bag opening from the inside, thereby opening the bag opening into a rectangle.

[0020] Optionally, the waste suction port can be raised and lowered to switch between a working position and an avoidance position. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the pin pressing device according to an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 A magnified view of point A;

[0023] Figure 3 This is a partial structural schematic diagram of the pin pressing device according to an embodiment of the present utility model;

[0024] Figure 4 This is a partial structural schematic diagram of the pin pressing device according to an embodiment of the present utility model;

[0025] Explanation of reference numerals in the attached figures:

[0026] Adsorption mechanism 1, adsorption plate 11, spreading mechanism 2, support block 21, long side 211, short side 212, driving component 22, gathering mechanism 3, forming plate 31, first air blowing part 311, second air blowing part 32, heat sealing mechanism 4, heating plate 41, cutting mechanism 5, cutting knife 51, waste suction mechanism 6, waste suction port 61, packaging bag 7. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0030] The following is for reference. Figure 1-4 The implementation of the pin pressing device according to the embodiments of the present utility model will be described in detail.

[0031] The pin pressing device according to an embodiment of the present invention includes:

[0032] The adsorption mechanism 1 includes a pair of openable and closable adsorption plates 11, which are used to adsorb on the upper and lower sides of the bag opening so that the bag opening of the packaging bag 7 is in an open state.

[0033] The opening mechanism 2 includes support blocks 21 distributed at the four corners of the bag opening, which can open the bag opening into a rectangle.

[0034] The gathering mechanism 3 includes a pair of openable forming plates 31, which abut against the two sides of the bag opening that has been stretched into a rectangle, thereby causing the two sides of the packaging bag 7 to gather inward.

[0035] The heat sealing mechanism 4 includes a pair of openable and closable heating plates 41, which are used to clamp and heat seal the bag opening.

[0036] The cutting mechanism 5 includes a cutter 51, which is used to cut off the excess part of the bag opening after heat sealing;

[0037] Waste suction mechanism 6 includes waste suction port 61, which is used to remove the cut-off excess portion;

[0038] Among them, the heating plate 41, the cutter 51, the adsorption plate 11 and the waste suction port 61 are arranged in sequence from near to far along the direction of the bag opening. The support block 21 and the waste suction port 61 are on the same vertical plane, and the waste suction port 61 is located between the two support blocks 21.

[0039] In other words, the previous process puts the product into the packaging bag 7 and then moves it to the working position of the insert pressing device. When the upper and lower adsorption plates 11 of the adsorption mechanism 1 are in the open state, they adsorb the upper and lower sides of the bag opening respectively, so that the bag opening is in an open state; then the four support blocks 21 of the spreading mechanism 2 support and fix the upper left corner, upper right corner, lower left corner and lower right corner of the bag opening respectively, so that the bag opening is in a rectangular state; the forming plate 31 of the gathering mechanism 3 moves from both sides of the bag opening toward the packaging bag 7 and abuts against the packaging bag 7 between the bag opening and the product, so that the two sides of the packaging bag 7 are concave in this position; the upper and lower heating plates 41 of the heat sealing mechanism 4 clamp onto the packaging bag 7 between the bag opening and the product, so that the packaging bag 7 is folded longitudinally in the concave position, and the packaging bag 7 folded together is heated to form a sealing line; the cutter 51 of the cutting mechanism 5 cuts off the excess part outside the sealing line; and the waste suction port 61 of the waste suction mechanism 6 sucks away the cut-off part; and the waste suction port 61 of the waste suction mechanism 6 sucks away the waste. The heating plate 41, cutter 51, adsorption plate 11, and waste suction port 61 are arranged from near to far relative to the bag opening, so that the heat-sealing seal line can be closer to the product. The shorter the overhang of the packaging bag 7 (from the bag opening to the front end of the product), the less likely the packaging bag 7 will collapse and deform. By placing the adsorption plate 11 after the cutter 51, it can be placed as close as possible to the position where the packaging bag 7 has strong support, which facilitates the smooth adsorption of the packaging bag 7 and maintains the flatness of the adsorbed surface of the packaging bag 7, which helps to ensure the packaging quality of the packaging bag 7. The waste suction port 61 and the support plate are placed after the adsorption plate 11, and the waste suction port 61 and the support plate are on the same vertical plane. This makes the part after the seal line of the packaging bag 7 shorter. That is, the function of the adsorption plate 11 is to pre-open the bag opening of the packaging bag 7. It needs to have a large contact area with the packaging bag 7 to be successfully adsorbed. If the adsorption plate 11 is placed at the end, the reserved part of the packaging bag needs to be longer to perform heat sealing and waste suction operations.

[0040] Among them, the adsorption mechanism 1, the spreading mechanism 2, the gathering mechanism 3, the heat sealing mechanism 4, the cutting mechanism 5, and the waste suction mechanism 6 can all adopt existing structures.

[0041] Therefore, the adsorption mechanism 1 adsorbs the top and bottom sides of the bag opening of the packaging bag 7, so that the bag opening is initially opened. The opening mechanism 2 fixes the initially opened bag opening, so that the bag opening is opened into a rectangular state. The closing mechanism 3 closes the two sides of the bag opening inward. The heat sealing mechanism 4 clamps the bag opening to align the folded edges of the upper and lower layers of the bag opening and heat seals it. The cutting mechanism 5 cuts off the excess bag opening after heat sealing. The waste suction mechanism 6 removes the cut waste. Furthermore, the heat sealing mechanism 4, the cutting mechanism 5, the adsorption mechanism 1 and the waste suction mechanism 6 are arranged from near to far relative to the bag opening of the packaging bag 7. The opening mechanism 2 and the waste suction mechanism 6 are arranged on the same vertical plane, so that the heat seal of the packaging bag 7 can be closer to the product inside the packaging bag 7. The part of the packaging bag 7 outside the heat seal can be reserved shorter, which helps to save the material of the packaging bag 7.

[0042] Optionally, the forming plate 31 is provided with a first air blowing part 311 that blows air towards both sides of the bag opening, and the air blowing holes of the first air blowing part 311 are located at the end of the forming plate 31. Understandably, existing gathering mechanisms 3 typically consist of a forming plate 31 and a push rod, which are spaced apart along the direction of the bag opening and must abut against both sides of the packaging bag 7 to gather the sides of the packaging bag 7 inward. By providing the first air blowing part 311 on the forming plate 31, air is blown from the forming plate 31 against both sides of the packaging bag 7 during operation, enabling the sides of the packaging bag 7 to gather quickly. This avoids the structural complexity caused by the push rod and reduces contact with the packaging bag 7, thus reducing the probability of damage to the packaging bag 7 caused by the push rod. The air blowing holes on the forming plate 31 can be angled towards the bag opening, facilitating the rapid gathering of the sides of the packaging bag 7 outside the forming plate 31.

[0043] Furthermore, the closing mechanism 3 also includes a second air blowing section 32 that blows air towards both sides of the bag opening. The second air blowing section 32 is connected to the forming plate 31, and the air blowing holes of the second air blowing section 32 are arranged along the direction of the bag opening. Understandably, by arranging the air blowing holes of the second air blowing section 32, the blowing force received by both sides of the packaging bag 7 can be made more uniform, thereby enabling the sides of the packaging bag 7 to quickly close inward. The air blowing holes of the second air blowing section 32 can be inclined towards the direction of the bag opening, thus avoiding the second air blowing section 32 being too long and interfering with the opening and closing mechanism.

[0044] Optionally, the opening mechanism 2 includes a drive member 22, which is connected to the support block 21 to drive the support block 21 to move up and down and rotate, thereby switching the support block 21 between a working position and an avoidance position. Understandably, the upper and lower support blocks 21 are initially in a retracted state. When it is necessary to open the bag opening, the drive member 22 drives the upper and lower support blocks 21 to extend to the vicinity of the bag opening, and then drives the support blocks 21 to rotate, causing the support blocks 21 to open the four corners of the bag opening from the inside out. The up and down movement and rotation movement of the support block 21 can be driven by two drive members 22 or by one drive member 22.

[0045] Furthermore, the driving component 22 is a spinning cylinder. Understandably, by using a spinning cylinder, one driving component 22 can drive the support block 21 to perform both lifting and rotating actions, which helps reduce the space occupied by the driving component 22 and makes the structure more compact. The spinning cylinder can be an existing structure.

[0046] Furthermore, the support block 21 includes a long side 211 and a short side 212. The long side 211 connects to the short side 212 to form a hook-shaped support block 21. The short side 212 connects to the drive member 22. The long side 211 is used to abut against the inner wall of the bag opening from the inside, thereby opening the bag opening into a rectangle. Understandably, the hook-shaped arrangement of the support block 21 facilitates the abutting of one side of the long side 211 against the inner side of the bag opening when the support block 21 rotates, thereby opening the bag opening into a rectangular shape. The hook-shaped recess formed between the long side 211 and the short side 212 can limit the bag opening, preventing it from dislodging from the recess and improving the stability of the bag opening.

[0047] Optionally, the waste suction port 61 can be raised and lowered to switch between a working position and a clearance position. Understandably, this raising and lowering of the waste suction port 61 facilitates the smooth removal of the cut-off portion of the packaging bag 7 by coordinating the opening and closing actions of the suction plate 11 and the heating plate 41. The waste suction port 61, the lower suction plate 11, and the lower heating plate 41 can all move in a synchronized manner.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pin pressing device, characterized in that, include: An adsorption mechanism, comprising a pair of openable and closable adsorption plates, which are used to adsorb on the upper and lower sides of the bag opening so that the bag opening of the packaging bag is in an open state. An opening mechanism, comprising support blocks distributed at the four corners of the bag opening, the support blocks being able to open the bag opening into a rectangle; A gathering mechanism, the gathering mechanism including a pair of openable and closable forming plates, the forming plates being used to abut against the two sides of the bag opening which is stretched into a rectangle, thereby causing the two sides of the packaging bag to gather inward. A heat-sealing mechanism, comprising a pair of openable and closable heating plates for clamping and heat-sealing the bag opening; A cutting mechanism, comprising a cutter for removing excess portion of the bag opening after heat sealing; A waste suction mechanism, the waste suction mechanism including a waste suction port, the waste suction port being used to remove the cut-off excess portion; The heating plate, the cutter, the adsorption plate, and the waste suction port are arranged sequentially from near to far along the direction of the bag opening. The support block and the waste suction port are on the same vertical plane, and the waste suction port is located between the support blocks on both sides.

2. The pin pressing device as described in claim 1, characterized in that, The molding plate is provided with a first air blowing part that blows air towards both sides of the bag opening, and the air blowing holes of the first air blowing part are located at the end of the molding plate.

3. The pin pressing device as described in claim 2, characterized in that, The gathering mechanism further includes a second air blowing section that blows air toward both sides of the bag opening. The second air blowing section is connected to the forming plate, and the air blowing holes of the second air blowing section are arranged along the direction of the bag opening.

4. The pin pressing device as described in claim 1, characterized in that, The spreading mechanism includes a driving component connected to the support block to drive the support block to move up and down and rotate, thereby switching the support block between a working position and an avoidance position.

5. The pin pressing device as described in claim 4, characterized in that, The driving component is a spinning cylinder.

6. The pin pressing device as described in claim 4, characterized in that, The support block includes a long side and a short side, the long side being connected to the short side to jointly construct a hook-shaped support block, the short side being connected to the drive member, and the long side being used to abut against the inner wall of the bag opening from the inside of the bag opening, thereby opening the bag opening into a rectangle.

7. The pin pressing device as described in claim 1, characterized in that, The waste suction port can be raised and lowered to switch between a working position and an avoidance position.

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