Polylactic acid spraying film production equipment

Abstract

The utility model relates to the field of polylactic acid spraying film production, in particular to polylactic acid spraying film production equipment. The film spraying production equipment comprises a film spraying production equipment body and a mounting frame, a film outlet seat is arranged on the mounting frame, and a film outlet is formed in the lower portion of the mounting frame; a servo motor is further arranged on the mounting frame, a lead screw is rotationally connected to the film outlet seat, the output end of the servo motor is connected with the lead screw, a scraper assembly is arranged on the lead screw and comprises a guide block connected to the lead screw in a threaded mode, a scraper is arranged below the guide block, a sliding groove is formed in one side of the film outlet seat, and a sliding block is slidably connected into the sliding groove. The sliding block is fixedly connected with one side of the guide block. By arranging the servo motor and the lead screw to drive the scraper assembly, automatic scraping of a film at a film outlet is facilitated, and then the problems that in existing polylactic acid film spraying production, the film is often scraped manually, and scraping is not thorough or equipment is damaged easily can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of polylactic acid coating production, in particular to polylactic acid coating production equipment. Background Art

[0002] The main raw material for polylactic acid coating production is polylactic acid (PLA). PLA and other raw materials are heated and extruded into films. First, the laminating machine is raised to the set temperature, and the screw and die head are cleaned with EVA and other raw materials to ensure that there are no impurities. The cleaned PLA and other raw materials are added to the hopper, and when the film flowing out of the die mouth meets the laminating requirements, the laminating begins.

[0003] In the current production of polylactic acid coating, the following deficiencies are found: the film flowing out of the die mouth usually relies on manual operation at the start or end stage, using a scraper to directly clean the die mouth. This traditional method is not only inefficient, but also due to the uncertainty of manual operation, the scraping effect is often unsatisfactory, which may cause film residue, thus adversely affecting subsequent production batches, and manual scraping may cause damage to the equipment.

[0004] Therefore, it is urgent to provide a polylactic acid coating production equipment to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a polylactic acid coating production equipment to solve the problem in the prior art that the film is often scraped off the die mouth manually in the existing polylactic acid coating production, which is easy to be scraped uncleanly or damage the equipment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polylactic acid coating production equipment, including a coating production equipment body and a mounting frame arranged thereon, wherein a film outlet seat is arranged on the mounting frame, and a film outlet port is opened below the mounting frame for discharging a film.

[0007] In order to solve the problem that the film is often scraped off manually from the die mouth in the existing polylactic acid coating production, which is easy to be scraped uncleanly or damage the equipment, a servo motor is also provided on the mounting frame, and a screw rod is rotatably connected to the film outlet seat, and the output end of the servo motor is connected to the screw rod, and a scraper assembly is provided on the screw rod, and the scraper assembly includes a guide block threadedly connected to the screw rod, and a scraper is provided under the guide block, which fits with the film outlet at the bottom end of the film outlet seat, and a slide groove is provided on one side of the film outlet seat, and a slider is slidably connected in the slide groove, and the slider is fixedly connected to one side of the guide block;

[0008] The guide block is also provided with a connecting arm at the bottom end, a transmission assembly is provided in the connecting arm, and a film collection assembly is provided at the bottom end of the transmission assembly for rolling up the film scraped by the scraper. By providing a servo motor and a screw to drive the scraper assembly, it is conducive to the automatic scraping of the film at the film outlet, thereby effectively solving the problem that the film is often scraped manually from the die in the existing polylactic acid coating production, which is easy to scrape uncleanly or damage the equipment.

[0009] As a further improvement of the technical solution, the scraper has a wedge-shaped structure.

[0010] As a further improvement of the technical solution, the slide groove matches the slider and both are T-shaped structures.

[0011] As a further improvement of the present technical solution, the transmission assembly includes a transmission rod rotatably connected to the connecting arm, a gear is fixedly connected to the top end of the transmission rod, the gear is meshed with a rack, the rack is fixedly connected to one side of the film outlet seat, the bottom end of the transmission rod is fixedly connected to a first bevel gear, the first bevel gear is meshed with a second bevel gear, and a film collecting assembly is fixedly connected to the second bevel gear.

[0012] As a further improvement of the present technical solution, the film winding assembly includes a winding rod rotatably connected to one side of the connecting arm, one end of the winding rod is fixedly connected to the second bevel gear, and the other end is fixedly connected to a limiting assembly, and the film winding roll assembly is detachably sleeved on the winding rod, and the limiting assembly is used to limit the film winding roll assembly, and a limiting groove is also provided on the winding rod.

[0013] As a further improvement of the present technical solution, the limiting assembly includes a limiting cylinder fixedly connected to the winding rod, a limiting rod slidably connected inside the limiting cylinder, one end of the limiting rod located inside the limiting cylinder is fixedly connected to one end of a spring, the other end of the spring is fixedly connected to the inner wall of the limiting cylinder, and the other end of the limiting rod extends to the outside of the limiting cylinder.

[0014] As a further improvement of the present technical solution, the film collecting roll assembly includes a film collecting cylinder detachably sleeved on the film collecting rod, a film rolling plate is evenly fixed on the film collecting cylinder, a limiting hole matching the limiting rod is also opened on the film collecting cylinder, a limiting block is slidably connected in the limiting groove, and the limiting block is fixedly connected to the inner wall of the film collecting cylinder; by setting a transmission assembly to be linked with the film collecting assembly, it is convenient to collect the scraped film in real time.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. This polylactic acid coating production equipment, by setting a servo motor and a screw-driven scraper assembly, is conducive to realizing the automatic scraping of the film at the film outlet, improving production efficiency, and avoiding the problems of uncleanness or equipment damage that may be caused by manual scraping.

[0017] 2. This polylactic acid coating production equipment is designed with a scraper that fits the film outlet: the scraper is convenient for effectively scraping the film flowing out of the film outlet, avoiding film residue on the equipment, and improving the quality of coating production; and the scraper with a wedge structure is convenient for the scraper to cut into the film more effectively, improve the scraping efficiency, and reduce the wear on the equipment.

[0018] 3. This polylactic acid coating production equipment is linked with the film collecting component by setting a transmission component: it is convenient to collect the scraped film in real time, which not only saves time and manpower for manual film processing, but also keeps the working space clean.

[0019] 4. This polylactic acid coating production equipment adopts a gear rack transmission method: it is convenient to realize the synchronous movement of the scraper component and the film collecting component, ensures the continuity of scraping and collecting the film, and improves work efficiency.

[0020] 5. This polylactic acid coating production equipment is designed with a detachable film-winding roll assembly: it is convenient to quickly replace the film-winding roll assembly after it is full of film, thereby ensuring the continuity of production and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the scraping mechanism of the utility model;

[0023] Figure 3 This is a schematic diagram of the scraper assembly structure of the utility model;

[0024] Figure 4 This is a cross-sectional view of the film outlet seat structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the transmission component structure of the utility model;

[0026] Figure 6 This is an exploded view of the film collecting component structure of the utility model;

[0027] Figure 7 for Figure 6 A magnified view of the structure at A;

[0028] Figure 8 It is a schematic diagram of the structure of the limit assembly of the utility model.

[0029] The meaning of each number in the figure is:

[0030] 1. Laminating production equipment body; 2. Mounting frame; 3. Film outlet seat; 4. Screw rod; 5. Transmission assembly; 6. Servo motor; 7. Scraper assembly; 8. Connecting arm; 9. Film collection assembly; 10. Slide;

[0031] 51. rack; 52. gear; 53. transmission rod; 54. first bevel gear; 55. second bevel gear;

[0032] 71. guide block; 72. slider; 73. scraper;

[0033] 91. winding rod; 92. film winding roll assembly; 93. limit assembly; 94. limit groove;

[0034] 921, film collecting cylinder; 922, film rolling plate; 923, limiting hole; 924, limiting block;

[0035] 931. Limiting cylinder; 932. Limiting rod; 933. Spring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" or "several" is two or more, unless otherwise clearly and specifically defined.

[0039] See also Figure 1-Figure 2 As shown, the purpose of this embodiment is to provide a polylactic acid coating production equipment, including a coating production equipment body 1 and a mounting frame 2 arranged thereon, a film outlet seat 3 is arranged on the mounting frame 2, and a film outlet is opened thereunder for discharging a film.

[0040] For further information, see Figure 2-Figure 4 As shown, a servo motor 6 is also provided on the mounting frame 2, and a screw rod 4 is rotatably connected to the film outlet seat 3. The output end of the servo motor 6 is connected to the screw rod 4, and a scraper assembly 7 is provided on the screw rod 4. The scraper assembly 7 includes a guide block 71 threadedly connected to the screw rod 4, and a scraper 73 is provided under the guide block 71, which fits with the film outlet at the bottom end of the film outlet seat 3. A slide groove 10 is provided on one side of the film outlet seat 3, and a slider 72 is slidably connected in the slide groove 10, and the slider 72 is fixedly connected to one side of the guide block 71; the guide block 71 moves forward on the screw rod 4 under the limiting action of the slider 72, thereby driving the scraper 73 to move forward, and then scraping the film at the film outlet;

[0041] A connecting arm 8 is also provided at the bottom end of the guide block 71 , a transmission assembly 5 is provided inside the connecting arm 8 , and a film-receiving assembly 9 is provided at the bottom end of the transmission assembly 5 for rewinding the film scraped off by the scraper 73 .

[0042] For further information, see Figure 3 As shown, the slide groove 10 matches the slider 72 and both are T-shaped structures.

[0043] For details, please refer to Figure 2 and Figure 5 As shown, the transmission assembly 5 includes a transmission rod 53 rotatably connected to the connecting arm 8, a gear 52 is fixedly connected to the top of the transmission rod 53, the gear 52 is meshed with a rack 51, the rack 51 is fixedly connected to one side of the film outlet seat 3, the bottom end of the transmission rod 53 is fixedly connected to a first bevel gear 54, the first bevel gear 54 is meshed with a second bevel gear 55, and a film collecting assembly 9 is fixedly connected to the second bevel gear 55.

[0044] For further information, see Figure 6 and Figure 7As shown, the film winding assembly 9 includes a winding rod 91 rotatably connected to one side of the connecting arm 8, one end of the winding rod 91 is fixedly connected to the second bevel gear 55, and the other end is fixedly connected to a limiting assembly 93. The winding rod 91 is detachably sleeved with a film winding roll assembly 92, and the limiting assembly 93 is used to limit the film winding roll assembly 92. A limiting groove 94 is also provided on the winding rod 91; in the process of the guide block 71 moving forward, the connecting arm 8 is also driven to move forward, thereby driving the gear 52 to move forward on the rack 51, and then causing the gear 52 to rotate, and the first bevel gear 54 is driven to rotate through the transmission rod 53, thereby driving the winding rod 91 to rotate through the second bevel gear 55, and then driving the film winding cylinder 921 thereon to rotate, so that the film rolling plate 922 thereon can roll the scraped film onto the film rolling plate 922 to recover the scraped film.

[0045] For further information, see Figure 7 and Figure 8 As shown, the limiting assembly 93 includes a limiting cylinder 931 fixedly connected to the winding rod 91, a limiting rod 932 slidably connected inside the limiting cylinder 931, one end of the limiting rod 932 located inside the limiting cylinder 931 is fixedly connected to one end of a spring 933, the other end of the spring 933 is fixedly connected to the inner wall of the limiting cylinder 931, and the other end of the limiting rod 932 extends to the outside of the limiting cylinder 931.

[0046] Also, see Figure 6 and Figure 7 As shown, the film winding roll assembly 92 includes a film winding cylinder 921 which is detachably sleeved on the winding rod 91, and a film winding plate 922 is evenly fixed on the film winding cylinder 921. A limiting hole 923 matching the limiting rod 932 is also opened on the film winding cylinder 921, and a limiting block 924 is slidably connected in the limiting groove 94, and the limiting block 924 is fixedly connected to the inner wall of the film winding cylinder 921; the limiting rod 932 is pressed to enter the limiting cylinder 931, and the film winding cylinder 921 can be pulled out, and then a new one can be put in. The film collecting tube 921 is inserted into the winding rod 91. During the insertion process, the limit block 924 on the inner wall of the film collecting tube 921 is first aligned with the limit groove 94 on the winding rod 91 and inserted; then the limit rod 932 is pressed into the limit tube 931, and then it can be inserted. When the limit hole 923 on the film collecting tube 921 is aligned with the limit rod 932, the limit rod 932 pops out into the limit hole 923 under the action of the spring 933 to complete the limitation of the film collecting tube 921, and the replacement is completed.

[0047] In addition, see Figure 3 As shown, the scraper 73 is wedge-shaped.

[0048] The specific working principle is as follows:

[0049] During specific operation, film flows out of the film outlet of the film outlet seat 3. When the film needs to be scraped, the servo motor 6 is started, which in turn drives the screw rod 4 to rotate, and the guide block 71 moves forward on the screw rod 4 under the limiting action of the slider 72, thereby driving the scraper 73 to move forward, and then scraping the film at the film outlet; and in the process of the guide block 71 moving forward, the connecting arm 8 is also driven to move forward, thereby driving the gear 52 to move forward on the rack 51, thereby causing the gear 52 to rotate, and the first bevel gear 54 is driven to rotate through the transmission rod 53, thereby driving the winding rod 91 to rotate through the second bevel gear 55, and then driving the film receiving cylinder 921 thereon to rotate, so that the film rolling plate 922 thereon can roll the scraped film onto the film rolling plate 922 to recycle the scraped film, saving manpower while ensuring the cleanliness of the working space; and when the film rolling plate 922 is full of film After that, the limiting rod 932 can be pressed into the limiting cylinder 931, and the film receiving cylinder 921 can be pulled out, and then the new film receiving cylinder 921 can be inserted into the winding rod 91. During the insertion process, the limiting block 924 on the inner wall of the film receiving cylinder 921 is first aligned with the limiting groove 94 on the winding rod 91 and inserted. The cooperation between the limiting groove 94 and the limiting block 924 is convenient for alignment during replacement, and the film receiving cylinder 921 is limited to prevent slipping during rotation; then the limiting rod 932 is pressed into the limiting cylinder 931, and then it can be inserted. When the limiting hole 923 on the film receiving cylinder 921 is aligned with the limiting rod 932, the limiting rod 932 pops out into the limiting hole 923 under the action of the spring 933 to complete the limitation of the film receiving cylinder 921 and complete the replacement; thereby effectively solving the problem that the die mouth in the existing polylactic acid coating production is often manually scraped off the film, which is easy to scrape uncleanly or damage the equipment.

[0050] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A polylactic acid coating production equipment, comprising a coating production equipment body (1) and a mounting frame (2) arranged thereon, wherein a film outlet seat (3) is arranged on the mounting frame (2), and a film outlet port is opened below the mounting frame for discharging a film; Features: The mounting frame (2) is also provided with a servo motor (6), the film outlet seat (3) is rotatably connected with a screw rod (4), the output end of the servo motor (6) is connected with the screw rod (4), the screw rod (4) is provided with a scraper assembly (7), the scraper assembly (7) comprises a guide block (71) threadedly connected to the screw rod (4), a scraper (73) is provided under the guide block (71), and the scraper (73) is fitted with a film outlet at the bottom end of the film outlet seat (3), a slide groove (10) is provided on one side of the film outlet seat (3), a slider (72) is slidably connected in the slide groove (10), and the slider (72) is fixedly connected to one side of the guide block (71); A connecting arm (8) is also provided at the bottom end of the guide block (71), a transmission assembly (5) is provided inside the connecting arm (8), and a film collection assembly (9) is provided at the bottom end of the transmission assembly (5) for rolling up the film scraped off by the scraper (73).

2. The polylactic acid coating production equipment according to claim 1, characterized in that: The scraper (73) has a wedge-shaped structure.

3. The polylactic acid coating production equipment according to claim 1, characterized in that: The slide groove (10) matches the slide block (72), and both are T-shaped structures.

4. The polylactic acid coating production equipment according to claim 1, characterized in that: The transmission assembly (5) comprises a transmission rod (53) rotatably connected to the connecting arm (8); a gear (52) is fixedly connected to the top end of the transmission rod (53); the gear (52) is meshed with a rack (51); the rack (51) is fixedly connected to one side of the film outlet seat (3); the bottom end of the transmission rod (53) is fixedly connected to a first bevel gear (54); the first bevel gear (54) is meshed with a second bevel gear (55); and a film collecting assembly (9) is fixedly connected to the second bevel gear (55).

5. The polylactic acid coating production equipment according to claim 4, characterized in that: The film winding assembly (9) comprises a winding rod (91) rotatably connected to one side of the connecting arm (8); one end of the winding rod (91) is fixedly connected to the second bevel gear (55), and the other end is fixedly connected to a limiting assembly (93); a film winding roll assembly (92) is detachably sleeved on the winding rod (91); the limiting assembly (93) is used to limit the film winding roll assembly (92); and a limiting groove (94) is also provided on the winding rod (91).

6. The polylactic acid coating production equipment according to claim 5, characterized in that: The limiting assembly (93) includes a limiting cylinder (931) fixedly connected to the winding rod (91), a limiting rod (932) slidably connected inside the limiting cylinder (931), one end of the limiting rod (932) located inside the limiting cylinder (931) is fixedly connected to one end of a spring (933), the other end of the spring (933) is fixedly connected to the inner wall of the limiting cylinder (931), and the other end of the limiting rod (932) extends to the outside of the limiting cylinder (931).

7. The polylactic acid coating production equipment according to claim 6, characterized in that: The film winding roll assembly (92) includes a film winding cylinder (921) detachably sleeved on the winding rod (91), a film winding plate (922) is evenly fixed on the film winding cylinder (921), and a limiting hole (923) matching the limiting rod (932) is also opened on the film winding cylinder (921), and a limiting block (924) is slidably connected in the limiting groove (94), and the limiting block (924) is fixedly connected to the inner wall of the film winding cylinder (921).

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