Barrel body forming mold convenient to demold

Abstract

A mold body of the barrel body forming mold comprises a center mold and side molds, the left side face and the right side face of the center mold are connected with the side molds respectively, the upper side and the lower side of the center mold are provided with first supporting faces respectively, the inner sides of the side molds are connected with the center mold, and the outer sides of the side molds are provided with second supporting faces. The first supporting surface and the second supporting surface are matched to define a cylinder body supporting surface; an air outlet is further formed in the surface of the second supporting face, an air channel is arranged in the mold body and connected with the air outlet, and an air inlet is further formed in the mold body and connected with the air channel. The center mold and the side mold are connected in a matched mode to form the mold body, namely the mold body is of a split combined connection structure, material selection is facilitated, the mold body adapts to the specification change of the barrel body, an air path structure is arranged in the mold body, the barrel body surrounding the barrel body supporting face can be blown to be loose, demolding is facilitated, and even the temperature of the mold body can be lowered through air cooling in a matched mode; especially, the temperature of the side mold can also solve the problem that the paper tube is not easy to demold after being adhered to the mold body.

Description

Technical Field

[0001] The utility model relates to a tube body forming structure of a paper container. Background Art

[0002] Paper containers such as paper cups or paper bowls (collectively referred to as paper cups for convenience) and cup sleeves for outer cups have a cylindrical body that is supported by a cup clamp structure (such as a left clamp, a right clamp, a top block, etc.) to hold the paper sheet on the forming mold. The cylindrical body is formed with the support of the forming mold, and the paper sheet is surrounded outside the support surface of the forming mold. The left and right sides of the paper sheet (usually a fan-shaped paper sheet) overlap to form an overlap, and the die head of the ultrasonic device presses down to heat and bond the overlap.

[0003] Among them, after the barrel body is formed on the forming mold, it needs to be demolded. For example, a demolding component such as a hook is used to act on the position corresponding to the cup mouth to hook the barrel body out of the forming mold (or pull it out or push it out). The demolding is unstable when the barrel body and the forming mold are tightly embraced, which can easily damage the barrel body opening, affect the curling mouth, and easily cause friction between the inner wall of the barrel body and the forming mold; especially the bent part of the barrel body is more difficult to separate and demold from the forming mold. Utility Model Content

[0004] In view of the technical problems existing in the background technology, the technical problem solved by the present invention is to provide a barrel forming mold that is easy to demould.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solution: a barrel forming mold that is easy to demold, including a mold body, which is characterized in that: the mold body includes a center mold and a side mold, the left and right side surfaces of the center mold are respectively connected to the side molds, the upper and lower sides of the center mold respectively have a first supporting surface, the inner side of the side mold is connected to the center mold, and the outer side of the side mold has a second supporting surface, the first supporting surface and the second supporting surface cooperate to form a barrel support surface; the surface of the second supporting surface is also provided with an air outlet, an air duct is provided in the mold body, the air duct is connected to the air outlet, and an air inlet is also provided on the mold body, and the air inlet is connected to the air duct.

[0006] The following various optimizations or supplementary explanations can be made on the above technical solutions respectively.

[0007] For example, the air channel includes an air groove, the air groove is arranged on the inner side of the side mold, the air inlet is arranged on the side mold, and the air inlet and the air outlet are respectively connected to the air groove.

[0008] Further optimization is performed, where the air outlet is arranged on the second supporting surface and tilted outward and forward.

[0009] For another example, the second supporting surface is further provided with a demoulding groove, which is arranged from the back to the front.

[0010] It can also be optimized so that the side mold and the center mold are connected by fasteners; a first connecting hole is provided on the side mold, a second connecting hole is provided on the center mold, the first connecting hole is arranged in the demoulding groove, and the center mold is respectively provided with a second connecting hole, and the first connecting hole and the second connecting hole are connected by fasteners.

[0011] For example, the inner side of the side mold and the center mold are respectively set as planes; the planes adopt vertical planes.

[0012] For another example, the first supporting surface is a horizontal surface, and the second supporting surface is a curved surface.

[0013] In an additional optimization, the curved surface includes an arc surface; the horizontal surface of the first supporting surface is tangently connected to the curved surface of the second supporting surface.

[0014] The beneficial effect of the utility model is that the barrel forming mold which is easy to demold, the center mold and the side mold are connected to form the mold body, that is, the mold body is a split combined connection structure, which is convenient for material selection and adapting to changes in barrel specifications. More importantly, its structure has an air path structure, which can loosen the barrel enclosed on the barrel support surface for easy demolding, and can even be air-cooled to reduce the temperature of the mold body, especially the temperature of the side mold, and can also reduce the problem of the paper tube sticking to the mold body and being difficult to demold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following describes the relevant details and working principles of the implementation methods and embodiments of the present invention in conjunction with the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 for Figure 1 Schematic diagram of the structure in which one side mold is in a separated state.

[0018] Figure 3 for Figure 1 Schematic diagram of the structure from another angle.

[0019] Figure 4 This is a schematic diagram of the inner structure of one side mold in the utility model.

[0020] In the picture:

[0021] 1. Mold body; 13. Center mold; 14. Side mold; 15. Airway;

[0022] 100, barrel support surface;

[0023] 131. First supporting surface; 132. Second connecting hole;

[0024] 141. Second supporting surface; 142. Air outlet; 143. Air inlet; 144. Air groove; 145. Inner side; 146. Demolding groove; 147. First connecting hole; 148. Entrance. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the implementation of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] Referring to the accompanying drawings, in an embodiment of the present embodiment, a cylinder body forming mold that is easy to demold includes a mold body 1, and the mold body 1 includes a center mold 13 and a side mold 14. The left and right side surfaces 133 of the center mold 13 are respectively connected to the side molds 14, that is, the center mold 13 is sandwiched by the left and right side molds 14, and the side molds 14 are respectively connected to the left and right sides of the center mold 13 to form the mold body 1. When used for forming paper cups, paper bowls, or outer sleeves (such as cup sleeves, etc.), the paper sheets are enclosed by the mold body 1 to form the cylinder body.

[0027] Among them, the upper and lower sides of the center mold 13 respectively have a first supporting surface 131, the inner side 145 of the side mold 14 is connected to the center mold 13, and the left and right side surfaces 133 of the center mold 13 (that is, its outer side surfaces) are respectively connected to the inner side 145 (surface) of the corresponding side mold 14. The outer side of the side mold 14 has a second supporting surface 141. The first supporting surface 131 and the second supporting surface 141 cooperate to form a cylinder support surface 100. The cylinder support surface 100 is used to support the paper sheet to be enclosed. The paper sheet will rely on the cylinder support surface 100 of the mold body 1 to enclose and form the cylinder body. The mold body 1 includes a center mold 13 and a split combination connection structure of side molds 14 on both sides. The center mold 13 and the side molds 14 can be made of the same material or different materials. For example, the side molds 14 can be made of a material that is easier to dissipate heat (such as aluminum). Especially when the outer side of the side mold 14 is a curved side, the side mold 14 is not easy to stick to the cylinder body at the bend after dissipating heat (compared with the higher temperature bend, the cylinder body is not easy to separate and demold after sticking and is easily damaged), which can make the cylinder body more smoothly demolded. The center mold 13 can be made of a higher strength material (which can better bear the pressure to support the top block in the cup clamp structure, the mold of the ultrasonic device, etc.), and it is even necessary to only replace the specifications of the side molds 14 to adapt to the needs of changes in the specifications of the cylinder body.

[0028] In addition, the surface of the second supporting surface 141 is also provided with an air outlet 142, wherein an air duct 15 is provided in the mold body 1, and the air duct 15 is connected to the air outlet 142. An air inlet 143 is also provided on the mold body 1, and the air inlet 143 is connected to the air duct 15. External gas can be input from the air inlet 143 into the cylinder body forming mold which is easy to demold, and after passing through the air duct 15, blown air is output from the air outlet 142. This combined structure (i.e., the air path structure) can loosen the cylinder body enclosed on the cylinder body supporting surface 100, especially when the outer side of the side mold 14 is a curved side, which can make the cylinder body demold more smoothly; even cold air can be blown for air cooling, and combined with lowering the temperature of the mold body 1, especially the temperature of the side mold 14, it can also reduce the problem of the paper tube sticking to the mold body 1 and being difficult to demold.

[0029] The barrel forming mold which is easy to demould, the center mold 13 and the side mold 14 are connected to form the mold body 1, that is, the mold body 1 is a split combined connection structure, which is convenient for material selection and adapting to changes in barrel specifications. More importantly, its structure has an air path structure, which can loosen the barrel enclosed on the barrel support surface 100 for easy demoulding, and can even be air-cooled to reduce the temperature of the mold body 1, especially the temperature of the side mold 14, and can also reduce the problem of the paper tube sticking to the mold body 1 and being difficult to demould.

[0030] The following optimization or further explanation may be performed based on the above embodiments.

[0031] For example, the air channel 15 includes an air groove 144, which is provided on the inner side 145 of the side mold 14 (i.e., the side facing the center mold 13). It is relatively convenient to process the air groove 144 on the inner side 145 of the side mold 14. After the processing is completed, the side mold 14 and the center mold 13 are assembled. The left and right side surfaces 133 of the center mold 13 are respectively abutted against the inner sides 145 of their respective side molds 14, and the enclosed air groove 144 can cooperate to form the air channel 15. Among them, the air inlet 143 is provided on the side mold 14, so that the air path structure can be completely provided on the side mold 14. The structure of the center mold 13 does not require additional structures due to the air path structure, making the center mold 13 relatively simpler. The air inlet 143 and the air outlet 142 are respectively connected to the air groove 144. In addition, in the structure, the air inlet 143 and the air outlet 142 can be set on the outside of the side mold 14 (i.e., the side facing away from the center center mold 13). The air inlet 143 and the air outlet 142 can be connected to the air groove 144 on the inside 145 of the side mold 14 by drilling (for example, drilling holes on the outside to align with the air groove 144 on the inside 145), which is relatively convenient for processing and manufacturing. The air outlet 142 is located within the range of the second support surface 141; the air inlet 143 can be located at the rear of the second support surface 141 of the side mold 14, so that the air inlet 143 does not occupy the support range and does not affect the forward movement of the cylinder body for demolding. In addition, the air outlet 142 is arranged on the second support surface 141 and tilted outward and forward. The air output from the air outlet 142 can not only loosen the barrel body enclosed on the barrel body support surface 100, so that the barrel body is disengaged from the mold body 1, but also has the function of blowing the barrel body forward to move it, and assisting the barrel body to move in the demolding direction, making demolding easier and achieving a better demolding effect.

[0032] In addition, the second support surface 141 is also provided with a demolding groove 146. The demolding groove 146 allows the demolding component to contact the opening of the barrel and allows the demolding component to move forward and remove the barrel from the mold body 1. Generally, the demolding groove 146 is arranged from the back to the front and is located in a relatively central position. The rear end of the side mold 14 has a demolding component forward movement entrance 148 for the demolding groove 146, so that the demolding component can smoothly move forward into the demolding groove 146 of the side mold 14 to cooperate in demolding the barrel.

[0033] For another example, the side mold 14 and the center mold 13 are connected by fasteners (such as screws). For example, the side mold 14 is provided with a first connecting hole 147, and the center mold 13 is provided with a second connecting hole 132. The first connecting hole 147 is set in the demolding groove 146, and the center mold 13 is also provided with a second connecting hole 132. The first connecting hole 147 and the second connecting hole 132 are connected by fasteners. The structure is relatively compact, and the demolding groove 146 serves a dual purpose, allowing the fastener and the first connecting hole 147 to be installed in a safe position, and also allowing the demolding components to operate. The volume of the mold body 1 is relatively small, and the connection is relatively stable, which is unlikely to affect the barrel support surface 100.

[0034] For example, the side mold 14 and the center mold 13 can be matched in a plane-to-plane manner, such as the inner side 145 of the side mold 14 and the left and right side surfaces 133 of the center mold 13 are respectively set as planes, which are convenient for processing and assembly; for example, the plane can be a vertical plane.

[0035] In addition, the first support surface 131 of the mold body 1 can be a horizontal surface, allowing the mold head to descend and press together. The overlap of the barrel body is relatively flat and firm, and has a wide range, which can adapt to the overlap of oblique overlaps or wide straight overlaps for overlap connection. The second support surface 141 is a curved surface, forming a mold with a flat head structure. Among them, the curved surface includes an arc surface. The horizontal surface of the first support surface 131 and the curved surface of the second support surface 141 are tangentially connected, and the connection between the support curved surface and the support flat surface can be polished smooth, with a relatively soft transition, and it is not easy to cause marks and scratches at the connection. For example, the first support surface 131 is symmetrically arranged in the upper and lower parts, and the left and right side surfaces 133 of the center mold 13 are symmetrical in the left and right parts. The left and right sides of the first support surface 131 are isosceles, which is relatively reasonable in structure and convenient for processing. The left and right sides of the first support surface 131 are an isosceles triangle support area or an isosceles trapezoidal support area.

Claims

1. A barrel forming mold that is easy to demould, comprising a mold body (1), characterized in that: The mold body (1) includes a center mold (13) and a side mold (14). The left and right side surfaces (133) of the center mold (13) are respectively connected to the side molds (14). The upper and lower sides of the center mold (13) respectively have first supporting surfaces (131). The inner side (145) of the side mold (14) is connected to the center mold (13), and the outer side of the side mold (14) has a second supporting surface (141). The first supporting surface (131) and the second supporting surface (141) cooperate to form a barrel supporting surface (100); The surface of the second supporting surface (141) is also provided with an air outlet (142). An air duct (15) is provided in the mold body (1), and the air duct (15) is connected to the air outlet (142). An air inlet (143) is also provided on the mold body (1), and the air inlet (143) is connected to the air duct (15).

2. The barrel forming mold for easy demoulding according to claim 1, characterized in that: The air channel (15) includes an air groove (144), and the air groove (144) is arranged on the inner side (145) of the side mold (14). The air inlet (143) is provided on the side mold (14). The air inlet (143) and the air outlet (142) are respectively connected to the air groove (144).

3. The barrel forming mold for easy demoulding according to claim 1 or 2, characterized in that: The air outlet (142) is arranged on the second supporting surface (141) in an outwardly and forwardly inclined manner.

4. The barrel forming mold for easy demoulding according to claim 1, characterized in that: A demoulding groove (146) is also provided on the second supporting surface (141).

5. The barrel forming mold for easy demoulding according to claim 4, characterized in that: The demoulding groove (146) is arranged from the back to the front, and the rear end of the side mold (14) has a demoulding component forward movement entrance (148) of the demoulding groove (146).

6. The barrel forming mold for easy demoulding according to claim 4, characterized in that: The side mold (14) and the center mold (13) are connected by fasteners; a first connection hole (147) is provided on the side mold (14), and a second connection hole (132) is provided on the center mold (13); the first connection hole (147) is arranged in the demoulding groove (146), and the center mold (13) is respectively provided with a second connection hole (132); the first connection hole (147) and the second connection hole (132) are connected by fasteners.

7. The barrel forming mold for easy demoulding according to claim 1, characterized in that: The inner side (145) of the side mold (14) and the left and right side surfaces (133) of the center mold (13) are respectively set as planes; the planes are vertical planes.

8. The barrel forming mold for easy demoulding according to claim 1, characterized in that: The first supporting surface (131) is a horizontal surface.

9. The barrel forming mold for easy demoulding according to claim 8, characterized in that: The second supporting surface (141) is a curved surface.

10. The barrel forming mold for easy demoulding according to claim 9, characterized in that: The curved surface includes an arc surface; the horizontal surface of the first supporting surface (131) is tangentially connected to the curved surface of the second supporting surface (141).

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