Paper ashtray and production mold

Abstract

The paper ashtray comprises a box bottom sheet, side sheets and corner sheets, the side sheets and the corner sheets are turned inwards and bonded to form a box wall, the tail ends of the side sheets and the corner sheets are turned outwards to form a box edge portion, and the corner sheets are provided with butt portions to form butt grooves. The production mold comprises a base plate, a lower mold and an upper mold, a corner folding mold and an edge bottom mold are arranged in a cavity of the lower mold, a positioning rod shaft is arranged between the corner folding mold and the lower mold, the upper mold is further provided with an edge pressing mold in a linkage mode, and a linkage shaft rod is arranged between the edge pressing mold and the upper mold and is relatively movably arranged. According to the ashtray producing and manufacturing die, based on the simple structure of the ashtray, the three-section type stamping die is arranged, through die power in the same direction and based on the spring die design structure, paper sheets can be pressed and formed in a staged mode, and finished products can be pushed to be separated from a die cavity based on automatic ejection of spring reset during die splitting; and rapid demolding is achieved, and automatic circulating machining is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of ashtray manufacturing technology, specifically to a paper ashtray and its production mold. Background Technology

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, die casting, forging, smelting, stamping, and stretching. In short, molds are tools used to shape objects. These tools are composed of various parts, and different molds are composed of different parts. They mainly achieve the processing of the shape of objects by changing the physical state of the material being molded. Ashtrays are tools for holding cigarette ash and butts. Initially, ashtrays were mostly made of ceramic or porcelain, but they were also made of glass or metal. Later, ashtrays were also made of paper. Ashtrays made of this material would have ash or sand placed inside to block the high temperature of the cigarette butt. Utility Model Content

[0003] The purpose of this utility model is to provide a paper ashtray and a production mold, which can be used for the industrialized and automated production of paper ashtrays. The ashtrays are quickly produced by stamping the raw paper sheets in one step using the multi-segment mold.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a paper ashtray, including a bottom piece, side pieces, and corner pieces spaced apart from the side pieces. The side pieces and corner pieces are flipped inward relative to the bottom piece and glued together to form the box wall, and the ends of the side pieces are flipped outward to form the box edge. The corner pieces are provided with cigarette butt portions for forming cigarette butt slots.

[0005] As a further feature of the above solution, the connection between the bottom piece, the side pieces, and the corner pieces of the box is provided with an indentation line, and the side pieces and the corner pieces are provided with a cut line. The bottom piece of the box is also provided with a heat insulation protrusion.

[0006] This utility model also includes a production mold for paper ashtrays. The mold includes a pad, a lower mold fixed on the pad, and an upper mold that moves relative to the lower mold. The lower mold cavity is also provided with a corner mold. A positioning rod is provided between the corner mold and the lower mold for the movement of the corner mold relative to the lower mold cavity. The lower mold is also provided with an edge bottom mold, and the upper mold is also linked with an edge pressing mold. A linkage shaft is provided between the edge pressing mold and the upper mold for relative movement.

[0007] As a further provision of the above scheme, the edge bottom mold and the edge pressing mold are respectively provided with a cavity and a pressing block for forming a cigarette butt groove on the edge of the ashtray.

[0008] As a further provision of the above scheme, the lower mold is provided with a sliding cavity that matches the cornering mold. The cornering mold includes a slider and a stripping part. The stripping part is provided with at least two stepped surfaces that are misaligned in the height direction, and the stripping part is movably arranged relative to the slider.

[0009] As a further feature of the above scheme, an ejector spring is sleeved on the positioning rod shaft, and the ejector spring is used to abut against and push the angled mold to move towards the upper mold direction.

[0010] As a further feature of the above scheme, a return spring is sleeved on the linkage shaft, and the return spring is used to abut against the pushing edge mold to move away from the upper mold.

[0011] Furthermore, this utility model also includes a manufacturing step for a paper ashtray:

[0012] S1. In the mold parting state, the corner mold on the lower mold is driven upward by the ejector spring, and the upper end is level with the edge of the lower mold and the upper edge of the bottom mold.

[0013] S2. The raw paper for the ashtray is placed into the mold cavity of the lower mold according to the pre-positioned position, and the upper mold starts to close towards the lower mold.

[0014] S3. The upper mold closest to the lower mold first abuts against the bottom of the box of the raw paper sheet, and pushes it to fit the inner bottom surface of the corner folding mold along the bottom of the box. During the pressing process, the side piece deforms relative to the bottom of the box along the indentation line of the edge connecting the bottom of the box and the side piece and gradually fits the inner wall of the corner folding mold.

[0015] S4. In step S3, the corner mold of the lower mold is driven upward by the ejector spring. In the mold closed state, after the upper mold drives the bottom piece and side piece to deform, the upper mold will abut against the corner mold to push it down. Due to the notches at the four corners of the corner mold, the corner mold does not drive the corner pieces during this process. After the upper mold pushes the corner mold downward, it moves relative to the lower mold with the raw material paper. At this time, the corner pieces are driven inward by the cavity of the lower mold and fit against the outer side of the two side pieces.

[0016] S5. While the upper mold and the lower mold are in place at the bottom of the corner mold and the lower mold are closed, the edge pressing mold on the upper mold continues to press against the edge bottom mold during the mold closing process. The edge bottom mold and the edge pressing mold form the box edge part, and the cigarette butt groove is formed based on the concave cavity and pressing block part corresponding to the cigarette butt part on the opposite corner piece of the edge bottom mold and the edge pressing mold.

[0017] S6. During mold separation, the upper mold is driven by the equipment to move away from the lower mold. During this process, the edge pressing mold of the upper mold moves first based on the linkage shaft and the return spring, and then the linkage shaft drags the main body of the upper mold to move. At the same time, when the main body of the upper mold moves away from the lower mold, the corner mold of the lower mold moves in the direction of separating from the lower mold cavity based on the setting of the ejection spring, until it is limited by the positioning rod shaft. At this time, the highest point of the corner mold is flush with the upper end of the edge bottom mold, and the completed ashtray is pushed by the corner mold pushed by the ejection spring to demold relative to the lower mold cavity.

[0018] Beneficial effects: The ashtray production mold of this utility model is based on the simple structure of the ashtray and is set with a three-section stamping mold. Through the mold power in the same direction and based on the spring mold design, it can not only press the paper into shape in stages, but also push the finished product out of the mold cavity by automatic ejection based on spring return when the mold is separated, so as to achieve rapid demolding and convenient automated cycle processing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the ashtray mold structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of each component of the mold in this embodiment.

[0021] Figure 3 This is a schematic cross-sectional view of the mold in the closed state in this embodiment.

[0022] Figure 4 This is a schematic diagram of the bottom surface of the mold structure component in this embodiment.

[0023] Figure 5 A schematic diagram of the ashtray style prepared by the mold in this embodiment.

[0024] Figure 6 This is a schematic diagram of the raw paper sheet for the ashtray prepared by the mold in this embodiment.

[0025] Reference numerals: 1. Pad; 100. Box bottom plate; 101. Cigarette butt section; 102. Side plate; 103. Corner plate; 104. Box wall; 105. Box edge; 106. Indentation line; 107. Cutting line; 108. Heat insulation protrusion; 11. Heat insulation plate; 12. Base mold plate; 2. Lower mold; 21. Sliding cavity; 3. Upper mold; 4. Folding mold; 41. Positioning rod shaft; 43. Sliding block; 44. Stripping section; 45. Stepped surface; 5. Edge bottom mold; 51. Cavity; 6. Edge pressing mold; 61. Linkage shaft; 62. Pressing block section; 7. Cigarette butt groove; 9. Ashtray. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0027] like Figure 5 and Figure 6 The paper ashtray shown includes a bottom piece 100, side pieces 102, and corner pieces 103 spaced apart from the side pieces 102. The side pieces 102 and corner pieces 103 are flipped inward relative to the bottom piece 100 and glued together to form a box wall 104. The end of the side pieces 102 is flipped outward to form a box edge 105. The corner pieces 103 are provided with a cigarette butt portion 101 for forming a cigarette butt groove 7.

[0028] As a further feature of the above solution, an indentation line 106 is provided at the connection between the bottom piece 100, the side piece 102, and the corner piece 103, and a knife-line cut 107 is provided between the side piece 102 and the corner piece 103. The bottom piece 100 is also provided with a heat-insulating protrusion 108.

[0029] like Figures 1-4 The paper ashtray and its production mold shown include a base plate 1, a lower mold 2 fixed on the base plate 1, and an upper mold 3 movable relative to the lower mold 2. The cavity of the lower mold 2 is also provided with a corner mold 4. A positioning rod shaft 41 is provided between the corner mold 4 and the lower mold 2 for the movement of the corner mold 4 relative to the cavity of the lower mold 2. The lower mold 2 is also provided with an edge bottom mold 5. The upper mold 3 is also linked with an edge pressing mold 6. A linkage shaft 61 is provided between the edge pressing mold 6 and the upper mold 3 for relative movement.

[0030] As a further provision of the above scheme, the edge bottom mold 5 and the edge pressing mold 6 are respectively provided with a cavity 51 and a pressing block part 62 for forming a cigarette butt groove 7 on the side of the ashtray 9.

[0031] As a further provision of the above scheme, the lower mold 2 is provided with a sliding cavity 21 that matches the angle mold 4. The angle mold 4 includes a slider 43 and a stripping part 44. The stripping part 44 is provided with at least two stepped surfaces 45 that are misaligned in the height direction, and the stripping part 44 is movably arranged relative to the slider 43.

[0032] As a further feature of the above scheme, an ejector spring is sleeved on the positioning rod shaft 41, and the ejector spring is used to abut against and push the angled mold 4 to move towards the upper mold 3.

[0033] As a further feature of the above scheme, a return spring is fitted on the linkage shaft 61, which is used to abut against and push the edge pressing mold 6 to move away from the upper mold 3.

[0034] As a further provision of the above scheme, a heat insulation plate 11 and a base mold base plate 12 are also provided under the pad plate 1.

[0035] As described above, the ashtray mold in this embodiment is referenced. Figures 1-3 As shown, its structure includes a fixed base mold plate 12, a heat insulation plate 11, a pad plate 1, and a lower mold 2, as follows: Figure 2 As shown, the lower mold 2 has a sliding cavity 21 inside, and a corner mold 4 with an ejector spring structure is set in the sliding cavity 21. The ejector spring allows the corner mold 4 to be ejected relative to the lower mold 2 when the upper mold 3 is not closed relative to the lower mold 2, and also when the upper mold 3 and lower mold 2 are closed and the molds are separated. Based on the thrust of the ejector spring, the corner mold 4 is ejected relative to the lower mold 2 and is basically flush with the upper surface of the edge bottom mold 5 on the lower mold 2, thus ejecting the finished ashtray 9 and separating its ring edge from the edge bottom mold 5. The outwardly ejected and sliding corner mold 4 can also be used to better receive the next piece of raw paper. Furthermore, the edge pressing mold 6 set on the upper mold 3 is equipped with a return spring between itself and the upper mold 3. The edge pressing mold 6 and external equipment... The edge pressing mold 6 and the upper mold 3 are connected by a linkage shaft 61. When the upper mold 3 is closed, the external equipment presses down, pushing the edge pressing mold 6 to bring the upper mold 3 and the lower mold 2 together to close. When the mold is separated after the mold closing process is completed, the edge pressing mold 6 separates first. At this time, based on the setting of the return spring, the upper mold 3 is still closed with the lower mold 2. That is, the upper mold 3 moves a little slower. The purpose of this time difference is to better separate the most complex part of the ashtray 9, namely the box edge 105 pressed by the edge pressing mold 6 and the edge bottom mold 5. The edge pressing mold 6 and the edge bottom mold 5 separate first. Then, the edge pressing mold 6 continues to move away from the lower mold 2. Based on the drag of the linkage shaft 61, the upper mold 3 is brought together to complete the mold separation.

[0036] As shown in the figure, the upper mold 3 of this embodiment includes a main body and a core, which together constitute the mold core for the inner cavity of the ashtray 9. The edge pressing mold 6 is located outside the main body and is connected to the upper mold 3 by a linkage shaft 61 to perform mold closing activities in the same direction. Based on the setting of the return spring, the two-section molding and separation of the inner and outer parts of the ashtray 9 is realized. Based on the setting of the ejection spring, the corner mold 4 cooperates with the lower mold 2 and the upper mold 3 to form a two-section pressing. First, the inner bottom of the ashtray 9 is formed, and then the corner piece 103 and the side piece 102 are connected to form the inner cavity of the ashtray 9.

[0037] As described above regarding the ashtray and its production mold, the method for preparing the paper ashtray in this embodiment includes the following steps:

[0038] S1. In the mold splitting state, the angled mold 4 on the lower mold 2 is driven upward by the ejector spring, and its upper end is level with the upper edge of the bottom mold 5 on the edge of the lower mold 2. The raw paper of the ashtray is placed into the mold cavity on the lower mold 2 according to the pre-position, and the upper mold 3 starts to close towards the lower mold 2.

[0039] S2. The upper mold 3, which is closest to the lower mold 2, first abuts against the bottom piece 100 of the raw material paper, and pushes it to fit the inner bottom surface of the corner mold 4 along the bottom piece 100. During the pressing process, the side piece 102 deforms relative to the bottom piece 100 along the indentation line 106 connecting the bottom piece 100 and the side piece 102 and gradually fits the inner wall of the corner mold 4.

[0040] S3. In step S2, the corner mold 4 of the lower mold 2 is driven upward by the ejector spring. In the mold closed state, after the upper mold 3 drives the bottom piece 100 and the side piece 102 to deform, the upper mold 3 will abut against the corner mold 4 to push it down. Due to the notches at the four corners of the corner mold 4, the corner mold 4 does not drive the corner piece 103 during this process. After the upper mold 3 pushes the corner mold 4 downward, it moves relative to the lower mold 2 with the raw material paper. At this time, the corner piece 103 is driven inward by the cavity of the lower mold 2 and fits against the outside of the two side pieces 102.

[0041] S4. While the upper mold 3 and the lower mold 2 are in place at the bottom of the corner mold 4 and the lower mold 2, the edge pressing mold 6 on the upper mold 3 continues to press against the edge bottom mold 5 during the mold closing process. The edge bottom mold 5 and the edge pressing mold 6 form the box edge portion 105, and the cigarette butt groove 7 is formed based on the concave cavity 51 and the pressing block portion 62 correspondingly provided on the cigarette butt portion 101 on the opposite corner piece 103 by the edge bottom mold 5 and the edge pressing mold 6.

[0042] S5. During mold separation, the upper mold 3 is driven by the equipment to move away from the lower mold 2. During this process, the edge pressing mold 6 of the upper mold 3 moves first based on the linkage shaft 61 and the return spring. Then, the linkage shaft 61 drags the main body of the upper mold 3 to move. At the same time, when the main body of the upper mold 3 moves away from the lower mold 2, the corner mold 4 of the lower mold 2 moves towards the direction of separating from the cavity of the lower mold 2 based on the setting of the ejection spring, until it is limited by the positioning rod shaft 41. At this time, the highest point of the corner mold 4 is flush with the upper end of the edge bottom mold 5, and the completed ashtray 9 is pushed by the corner mold 4 pushed by the ejection spring to demold relative to the cavity of the lower mold 2.

[0043] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A paper ashtray, characterized in that: The box includes a bottom piece (100), a side piece (102), and a corner piece (103) spaced apart from the side piece (102). The side piece (102) and the corner piece (103) are flipped inward relative to the bottom piece (100) and glued together to form a box wall (104). The end of the side piece (102) is flipped outward to form a box edge (105). The corner piece (103) is provided with a cigarette butt part (101) for forming a cigarette butt groove (7).

2. The paper ashtray according to claim 1, characterized in that: The bottom piece (100), side piece (102), and corner piece (103) of the box are provided with an indentation line (106), and a knife line cut (107) is provided between the side piece (102) and the corner piece (103). The bottom piece (100) of the box is also provided with a heat insulation protrusion (108).

3. A production mold for a paper ashtray, characterized in that: The device includes a pad (1), a lower mold (2) fixed on the pad (1), and an upper mold (3) that moves relative to the lower mold (2). The lower mold (2) cavity is also provided with a bend mold (4). A positioning rod shaft (41) is provided between the bend mold (4) and the lower mold (2). The positioning rod shaft (41) is used to guide the movement of the bend mold (4) relative to the cavity of the lower mold (2) and to restrict its separation. An edge bottom mold (5) is also fixed on the lower mold (2). An edge pressing mold (6) that moves relative to the upper mold (3) is also linked to the upper mold (3). A linkage shaft (61) is provided between the edge pressing mold (6) and the upper mold (3). The edge pressing mold (6) and the edge bottom mold (5) are arranged opposite to each other.

4. The production mold for a paper ashtray according to claim 3, characterized in that: The edge bottom mold (5) and the edge pressing mold (6) are respectively provided with a cavity (51) and a pressing block (62) for forming a cigarette butt groove (7) on the box edge (105) of the ashtray (9).

5. The production mold for a paper ashtray according to claim 3, characterized in that: The lower mold (2) is provided with a sliding cavity (21) that matches the angle mold (4). The angle mold (4) includes a slider (43) and a stripping part (44). The stripping part (44) is provided with a stepped surface (45), and the stripping part (44) is movably arranged relative to the slider (43).

6. The production mold for a paper ashtray according to claim 3, characterized in that: An ejector spring is sleeved on the positioning rod shaft (41), and the ejector spring is used to push the angle mold (4) to move away from the inner cavity of the lower mold (2).

7. The production mold for a paper ashtray according to claim 3, characterized in that: A reset spring is fitted on the linkage shaft (61), which is used to push the edge pressing mold (6) to move away from the edge bottom mold (5).

8. The production mold for a paper ashtray according to claim 3, characterized in that: The pad (1) is also provided with a heat insulation plate (11) and a base mold base plate (12).

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