Degradable polylactic acid paper cup forming device

Abstract

The utility model relates to the technical field of paper box edge folding, in particular to a degradable polylactic acid paper cup forming device, which is characterized in that a forming base is fixedly mounted on the upper end face of a mounting base, an upper seat plate matched with the forming base to form a paper cup is arranged above the forming base, and a core groove for forming the paper cup is arranged on the forming base; a core groove is formed in the base body, a paper feeding groove used for paper entering is formed in the base body, the paper feeding groove is communicated with the core groove, paper rubbing wheels used for paper feeding through rotation are arranged on the two sides of the paper feeding groove, the core body of the device is a moving part, winding shaping of a paper cup is completed through movement of the core body, and the formed paper cup can be adsorbed to the core body through an air channel. The paper cup is convenient to demould; paper feeding of the paper cups is completed through the paper rolls, and compared with a traditional fan-shaped paperboard, the device is higher in paper cup production continuity; the pressure block of the device is used for forming the paper cup in a hot pressing mode, and the formed paper cup can be separated from a paper roll by the cutting knife after the paper cup is bonded and formed.

Description

Technical Field

[0001] The utility model relates to the technical field of carton hemming, and specifically to a degradable polylactic acid paper cup forming device. Background Art

[0002] In some places with a large flow of people or when people go on picnics, traditional cups are very inconvenient. They not only occupy a large space and have a large weight, but also are inconvenient to clean. Therefore, disposable paper cups came into being. Because they are for single use, the amount of discarded ones is very large, which is also a drawback of disposable paper cups. In order to improve environmental protection, a degradable polylactic acid (PLA) material is used as the raw material to realize the forming of paper cups.

[0003] The traditional production method of paper cups is pipeline processing. Through the feeding of fan-shaped cardboard, processes such as winding and bonding are carried out. The pipeline is long, and usually only one paper cup is formed at a time, with low efficiency. And the fan-shaped cardboard needs to be cut and formed, so it is particularly important to have an efficient degradable polylactic acid paper cup forming device. Summary of the Utility Model

[0004] The utility model aims to solve the technical problems in the existing paper cup production, where processes such as winding and bonding are carried out through the feeding of fan-shaped cardboard, the pipeline is long, usually only one paper cup is formed at a time, with low efficiency, and the fan-shaped cardboard needs to be cut and formed.

[0005] The technical solution adopted by the utility model is as follows: A degradable polylactic acid paper cup forming device is provided, which includes an installation base. A placement rack for placing paper rolls is installed on the installation base. The paper wound on the paper roll passes through and enters the forming base. The forming base is fixedly installed on the upper end surface of the installation base. Above the forming base, there is an upper seat plate that cooperates with the forming base to realize the forming of paper cups. The forming base is provided with a core groove for paper cup forming, and an inlet paper groove for paper to enter is arranged on the forming base. The inlet paper groove is communicated with the core groove, and both sides of the inlet paper groove are provided with paper feeding rollers that rotate to feed the paper.

[0006] Furthermore, the seat body is fixedly installed on the upper end surface of the installation base through support feet. A groove is arranged at the central position of the seat body, and a first linear driving device is installed in the groove.

[0007] Furthermore, a forming cylinder for cooperating with the core groove to realize paper cup forming is installed on the lower end surface of the upper seat plate.

[0008] Furthermore, a cutting part for paper cup cutting and bonding is installed on the upper end surface of the installation base, and an installation groove for installing the cutting part is arranged on the side wall of the installation base.

[0009] Further, the cutting part includes a bracket installed on the upper end face of the installation base. A driving device is installed at one end of the bracket away from the installation base, and a pressure block is arranged at the output end of the driving device.

[0010] Further, a cutting knife is arranged on one side of the pressure block close to the core groove.

[0011] The beneficial effects of the present invention are as follows: The core body of this device is a moving part, and the shaping of the paper cup winding is completed by using the movement of the core body. Moreover, the formed paper cup can be adsorbed on the core body through the air passage, which is convenient for the demolding of the paper cup; This device uses a paper roll to complete the paper feeding of the paper cup. Compared with the traditional fan-shaped cardboard, the production of paper cups by this device has stronger continuity. The paper feeding angle of the paper feeding groove of this device is perpendicular to the inclination angle of the side wall of the core groove, which can better adapt to the shape of the paper cup; The pressure block of this device forms the paper cup by hot pressing, and after the paper cup is bonded and formed, the cutting knife can separate the formed paper cup from the paper roll. Description of the Drawings

[0012] Figure 1 is the overall three-dimensional structural schematic diagram of the present utility model;

[0013] Figure 2 is the three-dimensional structural schematic diagram of the cutting part of the present utility model;

[0014] Figure 3 is the three-dimensional structural schematic diagram of the forming base and the upper seat body of the present utility model;

[0015] Figure 4 is the three-dimensional structural schematic diagram of the forming device of the present utility model;

[0016] The meanings of each label in the figure are as follows:

[0017] Among them: 1. Installation base; 2. Placing rack; 3. Cutting part; 31. Bracket; 32. Driving device; 33. Pressure block; 34. Cutting knife; 4. Forming base; 41. Supporting foot; 42. Supporting column; 43. Paper feeding groove; 44. Paper rubbing wheel; 45. Installation groove; 46. Core groove; 5. Upper seat plate; 6. Paper roll; 7. Motor; 8. Connecting rod; 9. Forming cylinder. Detailed Embodiment

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0021] To deepen the understanding of the present utility model, the present utility model will be further described in detail below in conjunction with embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation to the protection scope of the present utility model.

[0022] The present utility model is different from the traditional pipeline - type paper cup production method. A paper cup forming machine of the present utility model completes the processing of a batch of paper cups through one reciprocating motion of the upper seat plate 5. Moreover, different from the traditional paper cup production method that uses fan - shaped paper to produce paper cups, the present application can directly complete the processing of paper cups by feeding a paper roll.

[0023] This embodiment discloses a degradable polylactic acid paper cup forming device, in combination with Figure 1As shown, the paper cup forming device includes a mounting base 1. A placing rack 2 for placing a paper roll 6 is mounted on the mounting base 1. The placing rack 2 is a cylindrical rod, and a disc is arranged at its middle position. The paper roll 6 is sleeved from above through the hollow in the middle of the cylindrical rod and placed on the disc. The paper roll 6 can rotate freely on the placing rack 2. The paper wound on the paper roll 6 penetrates into a forming base 4. The forming base 4 is fixedly mounted on the upper end surface of the mounting base 1. Above the forming base 4, there is an upper seat plate 5 that cooperates with the forming base 4 through support columns 42 to form a paper cup. The forming base 4 is made of a metal material such as stainless steel or cast iron. A core groove 46 for forming a paper cup is arranged on the forming base 4. There are multiple core grooves 46, and their shapes are the same as the outer wall shape of the paper cup. The inner wall of the core groove 46 is polished. A paper feeding groove 43 for the paper to enter is arranged on the forming base 4. The paper feeding groove 43 is communicated with the core groove 46. The paper feeding angle of the paper feeding groove 43 is perpendicular to the inclination angle of the side wall of the core groove 46. The width of the paper feeding groove 43 is slightly larger than the thickness of the paper. On both sides of the paper feeding groove 43, there are paper feeding rollers 44 that rotate to feed the paper. There are two paper feeding rollers 44, and the two paper feeding rollers 44 are respectively located on both sides of the paper feeding groove 43. The paper feeding rollers 44 are in contact with the paper and use the friction with the paper to realize the feeding of the paper. The outside of the paper feeding rollers 44 is wrapped with a friction layer, and the friction layer is made of a material such as rubber or silica gel. The forming base 4 is fixedly mounted on the upper end surface of the mounting base 1 through support feet 41. There are multiple support feet 41.

[0024] In this embodiment, a motor 7 is arranged above the upper seat plate 5. A connecting rod 8 is arranged below the upper seat plate 5 and is connected to the motor 7 to cooperate and connect to the lower forming base 4 below. By starting the motor 7, the connecting rod 8 and the forming cylinder 9 inside it can rotate to rotate the paper entering the core groove 46 into a paper cup shape, thus facilitating the cutting operation of the subsequent cutting device.

[0025] In this embodiment, combined with Figure 1 and Figure 2 As shown, a cutting part 3 for cutting and bonding the paper cup is mounted on the upper end surface of the mounting base 1. An installation groove 45 for mounting the cutting part 3 is arranged on the side wall of the mounting base 1. The installation groove 45 is communicated with the core groove 46. The number of the installation grooves 45 is the same as the number of the core grooves 46, and the positions of the installation grooves 45 correspond to the positions of the core grooves 46 one by one. Combined with Figure 2As shown in the figure, the cutting part 3 includes a bracket 31 installed on the upper end surface of the installation base 1. One end of the bracket 31 away from the installation base 1 is installed with a driving device 32. The driving device 32 is preferably a hydraulic device. The output end of the driving device 32 is provided with a pressure block 33. An electric heating tube is arranged in the pressure block 33. The pressure block 33 bonds and forms the wound paper cups by hot pressing. The driving device 32 is controlled by an external controller. The thickness of the pressure block 33 is slightly smaller than the width of the installation groove 45. A cutting knife 34 is arranged on one side of the pressure block 33 close to the core groove 46. The cutting knife 34 can be used to cut and separate the bonded paper cups from the paper. After cutting, the paper cups can be taken out, which is convenient for the subsequent processing of the paper cups.

[0026] The above embodiments are only used to further illustrate a degradable polylactic acid paper cup forming device of the present invention, but the present invention is not limited to the embodiments. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A degradable polylactic acid paper cup forming device, comprising a mounting base (1), a placement rack (2) for placing a paper roll (6) is mounted on the mounting base (1), the paper wound on the paper roll (6) penetrates into a forming base (4), the forming base (4) is fixedly mounted on the upper end surface of the mounting base (1), and an upper seat plate (5) for forming a paper cup in cooperation with the forming base (4) through a support column (42) is arranged above the forming base (4), characterized in that: The forming base (4) is provided with a core groove (46) for forming paper cups, and a paper feeding groove (43) for paper to enter is arranged on the forming base (4). The paper feeding groove (43) communicates with the core groove (46), and paper feeding rollers (44) for feeding paper by rotation are arranged on both sides of the paper feeding groove (43). A motor (7) is arranged above the upper seat plate (5), and a connecting rod (8) is arranged below the upper seat plate (5) and is cooperatively connected with the motor (7) to the forming base (4) below. A forming cylinder (9) is arranged in the core groove (46), and the forming cylinder (9) is cooperatively connected with the motor (7) through the connecting rod (8).

2. The degradable polylactic acid paper cup forming device according to claim 1, wherein: The forming base (4) is fixedly installed on the upper end surface of the installation base (1) through support feet (41).

3. The degradable polylactic acid paper cup forming device according to claim 1, wherein: The upper end surface of the installation base (1) is provided with a cutting part (3) for cutting and bonding paper cups, and an installation groove (45) for installing the cutting part (3) is arranged on the side wall of the installation base (1).

4. The degradable polylactic acid paper cup forming apparatus according to claim 3, characterized in that: The cutting part (3) includes a bracket (31) installed on the upper end surface of the installation base (1), a driving device (32) is installed at one end of the bracket (31) away from the installation base (1), and a pressure block (33) is arranged at the output end of the driving device (32).

5. The degradable polylactic acid paper cup forming device according to claim 4, characterized in that: A cutting knife (34) is arranged on one side of the pressure block (33) close to the core groove (46).

Images