A plastic bottle packaging machine capable of heat sealing and laminating
By designing a heat-sealable and fitable plastic bottle packaging machine, including cleaning devices and positioning devices, the problem of deterioration of edge sealing effect caused by the increase in edge sealing plate temperature is solved, and a higher quality and stable edge sealing effect is achieved.
Patent Information
- Application Number
- CN202422155463.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-09-03
AI Technical Summary
After using the plastic bottle packaging machine for a long time, the temperature of the edge sealing plate increases, causing the film to soften, affecting the edge sealing effect, and causing the edge sealing effect to become worse.
A heat-sealable plastic bottle packaging machine is designed, including a cleaning device and a positioning device. The cleaning device ensures that the edge sealing block surface is clean through parts such as brushes, cleaning boards, scrapers and springs; the positioning device ensures that the film is correctly positioned and fixed through parts such as bidirectional threaded rods, stoppers and balls.
It effectively solves the problem of poor edge sealing effect caused by the increase in the temperature of the edge sealing plate, ensures the cleaning of the edge sealing block and the correct positioning of the film, and improves the quality and stability of the edge sealing.
Smart Images
Figure CN222729451U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of packaging machines, and more specifically relates to a plastic bottle packaging machine capable of heat-sealing and laminating. Background Art
[0002] The plastic bottle packaging machine is a device that heats and seals the plastic film on the mouth of the plastic bottle. The plastic bottle is placed on the surface of the conveyor belt and transported to the bottom of the sealing machine for sealing, thereby sealing the mouth of the plastic bottle.
[0003] The inventor discovered during daily use of the plastic bottle packaging machine that during long-term edge sealing, the temperature of the edge sealing board increased, causing the film standing on the edge sealing board to soften, which in turn resulted in the subsequent inability to perform edge sealing normally, resulting in a deterioration in the edge sealing effect, which in turn caused an impact. Utility Model Content
[0004] The main purpose of the utility model is to provide a plastic bottle packaging machine capable of heat-sealing and laminating.
[0005] According to the first aspect of the utility model, there is provided a heat-sealable plastic bottle packaging machine, comprising a bottom plate, the top of the bottom plate is fixedly connected to a support frame, the side of the support frame is fixedly connected to a motor, the output end of the motor is fixedly connected to a roller, the surface of the roller is sleeved with a conveyor belt, the top of the bottom plate is provided with a rectangular groove, the interior of the rectangular groove is rotatably connected to a bidirectional threaded rod, the surface of the bidirectional threaded rod is threadedly connected to a limiting rod, the top of the bottom plate is fixedly connected to an edge banding frame, the side of the edge banding frame is fixedly connected to a fixing frame, and the surface of the fixing frame is provided with a positioning device The bottom of the edge banding frame is fixedly connected to a hydraulic rod, and the bottom of the hydraulic rod is provided with a cleaning device, and the cleaning device comprises a U-shaped frame fixedly connected to the bottom of the hydraulic rod, and the side of the U-shaped frame is fixedly connected to a rotating machine, and the output end of the rotating machine is fixedly connected to an edge banding block, and the edge banding block is rotatably connected inside the U-shaped frame, and a groove is provided on the side of the U-shaped frame, and a fixing rod is fixedly connected inside the groove, and a slide is slidably connected to the surface of the fixing rod, and a cleaning plate is provided on the side of the slide, and a brush is fixedly connected to the side of the cleaning plate, and a collection frame is slidably connected to the side of the U-shaped frame.
[0006] Under the action of the brush, the feeding film adhered to the surface of the edge sealing block is cleaned, avoiding the phenomenon that impurities remain on the surface of the edge sealing block while the edge sealing part is firm. When the mouth of the plastic bottle needs to be heat-sealed, the plastic bottle is placed on the surface of the conveyor belt, and the two-way threaded rod is twisted to make the limit rod limit the plastic bottle to the middle position of the conveyor belt, start the motor to make the conveyor belt rotate, and then move the plastic bottle to the bottom of the edge sealing frame, and squeeze the edge sealing block to the mouth of the plastic bottle through the hydraulic rod, install the film between the edge sealing block and the mouth of the plastic bottle, and then heat and seal the film on the mouth of the plastic bottle, thereby achieving the effect of heat sealing.
[0007] According to the heat-sealable plastic bottle packaging machine described in the first embodiment of the utility model, the side of the slide plate is fixedly connected with a first spring, and the other end of the first spring is fixedly connected to the side of the cleaning plate. Under the action of the first spring, the cleaning plate can be adjusted at will, so that the cleaning plate can be tightly connected with the side of the edge sealing block, and the phenomenon of incomplete cleaning caused by the cleaning plate and the edge sealing block not fitting together will not occur.
[0008] According to the heat-sealable plastic bottle packaging machine described in the first embodiment of the utility model, a scraper is fixedly connected to the side of the cleaning plate, and the scraper is tightly fitted with the side of the edge sealing block. Under the action of the scraper, the firm impurities adhering to the surface of the edge sealing block can be scraped off, thereby keeping the edge sealing block clean.
[0009] According to the heat-sealable plastic bottle packaging machine described in the first embodiment of the utility model, a second spring is sleeved on the surface of the fixing rod, and two ends of the second spring are fixedly connected to the side surface of the slide plate and the inner wall of the groove.
[0010] Under the action of the second spring, the slide plate can be pressed tightly against the side of the edge sealing block, thereby avoiding the phenomenon of unclean cleaning caused by the long distance between the slide plate and the edge sealing block. When the edge sealing block needs to be cleaned, when the edge sealing block moves up, the turning machine rotates 1 / 4, thereby causing the edge sealing block to rotate 1 / 4. When the edge sealing block is rotating, under the action of the second spring, the slide plate is tightly pressed against the side of the edge sealing block. Under the action of the first spring, the cleaning plate can be adjusted at will, thereby allowing the cleaning plate to be tightly spring-fitted against the side of the edge sealing block, thereby preventing the cleaning plate from not fitting against the edge sealing block and causing unclean cleaning. Under the action of the scraper, the firm impurities adhered to the surface of the edge sealing block can be scraped off, thereby keeping the edge sealing block clean. After cleaning, the impurities on the surface of the edge sealing block fall into the collection frame for collection, thereby avoiding the phenomenon of impurities falling at will, thereby achieving the cleaning effect.
[0011] According to the heat-sealable plastic bottle packaging machine described in the first embodiment of the utility model, the positioning device includes a long groove opened inside the fixing frame, a bidirectional screw is rotatably connected inside the long groove, and a blocking rod is threadedly connected to the surface of the bidirectional screw. Under the action of the bidirectional screw, the blocking rod moves relatively, and then films of different widths can be fixed in the middle of the fixing frame, avoiding the phenomenon of film deviation.
[0012] According to the heat-sealable plastic bottle packaging machine described in the first embodiment of the utility model, the upper top of the barrier rod is rotatably connected to a rotating rod, the side of the rotating rod is fixedly connected to an elastic rope, and the other end of the elastic rope is fixedly connected to the side of the barrier rod. When the film roller is sleeved on the surface of the fixed frame, the rotating rod is pressed to one side, and when the film roller is sleeved between the barrier rods, the elastic rope causes the rotating rod to reset and restrict the film roller between the barrier rods.
[0013] According to the heat-sealable plastic bottle packaging machine described in the first embodiment of the utility model, the side of the blocking rod is fixedly connected to an L-shaped rod, the side of the L-shaped rod is inserted with a clamping rod, the surface of the clamping rod is sleeved with a third spring, and the two ends of the third spring are respectively fixedly connected to the side of the L-shaped rod and the side of the clamping rod away from the L-shaped rod. Under the action of the third spring, the clamping rod is inserted into the interior of the rotating rod in a self-locking manner, thereby fixing the rotating rod.
[0014] According to the heat-sealable plastic bottle packaging machine described in the embodiment of the first aspect of the utility model, a circular groove is provided on the side of the baffle rod, and a ball is rotatably connected inside the circular groove.
[0015] Under the action of the ball, the friction between the film roller and the stop rod is reduced, thereby avoiding the phenomenon of the film roller not rotating due to the large friction. When heat sealing is performed, the film roller is sleeved on the film of the fixed frame, and the rotating rod is pressed to one side. When the film roller is sleeved between the stop rods, the rotating rod is reset under the action of the elastic rope to restrict the film roller between the stop rods. Under the action of the third spring, the clamping rod is self-locking and inserted into the interior of the rotating rod, thereby fixing the rotating rod, and twisting the bidirectional screw to clamp the film roller. Under the action of the ball, the friction between the film roller and the stop rod is reduced, thereby avoiding the phenomenon of the film roller not rotating due to the large friction, thereby achieving the positioning effect.
[0016] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:
[0017] In the utility model, by arranging a cleaning device, when it is necessary to clean the edge sealing block, the rotating machine rotates, thereby causing the edge sealing block to rotate. During the rotation of the edge sealing block, under the action of the second spring, the slide plate is tightly attached to the side of the edge sealing block. Under the action of the first spring, the cleaning plate can be adjusted at will, thereby allowing the cleaning plate to be tightly attached to the side of the edge sealing block, thereby preventing the cleaning plate from not fitting with the edge sealing block and causing unclean cleaning. Under the action of the scraper, firm impurities adhered to the surface of the edge sealing block can be scraped off, thereby keeping the edge sealing block clean. After cleaning, the impurities on the surface of the edge sealing block fall into the collection frame for collection, thereby avoiding the phenomenon of impurities falling at will, thereby achieving the cleaning effect, thereby solving the problem of plastic film sticking to the plastic film and affecting edge sealing due to long-term use of the edge sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0019] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;
[0020] Figure 2 This is a schematic diagram of a cleaning device in an embodiment of the utility model;
[0021] Figure 3 It is a partial schematic diagram of the positioning device in the embodiment of the utility model;
[0022] Figure 4 It is a schematic diagram of a positioning device in an embodiment of the utility model. DETAILED DESCRIPTION
[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0026] 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 technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.
[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.
[0028] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.
[0029] Reference Figures 1 to 4 As shown, a heat-sealable plastic bottle packaging machine is provided, comprising a base plate 1, a support frame is fixedly connected to the upper top of the base plate 1, a motor 6 is fixedly connected to the side of the support frame, a roller is fixedly connected to the output end of the motor 6, a conveyor belt 5 is sleeved on the surface of the roller, a rectangular groove is opened on the upper top of the base plate 1, a bidirectional threaded rod 7 is rotatably connected inside the rectangular groove, a limiting rod 8 is threadedly connected to the surface of the bidirectional threaded rod 7, an edge banding frame 9 is fixedly connected to the upper top of the base plate 1, a fixing frame 4 is fixedly connected to the side of the edge banding frame 9, a positioning device 3 is arranged on the surface of the fixing frame 4, a hydraulic rod is fixedly connected to the bottom of the edge banding frame 9, and a cleaning device 2 is arranged at the bottom of the hydraulic rod.
[0030] When the mouth of the plastic bottle needs to be heat-sealed, the plastic bottle is placed on the surface of the conveyor belt 5, and the two-way threaded rod 7 is twisted to make the limit rod 8 limit the plastic bottle to the middle position of the conveyor belt 5, and the motor 6 is started to make the conveyor belt 5 rotate, and then the plastic bottle is moved to the bottom of the edge sealing frame 9, and the edge sealing block 22 is squeezed to the mouth of the plastic bottle by the hydraulic rod, and the film is installed between the edge sealing block 22 and the mouth of the plastic bottle, and then the film is heated and sealed on the mouth of the plastic bottle, thereby achieving the effect of heat sealing.
[0031] Reference Figure 2 In some embodiments of the utility model, the cleaning device 2 includes a U-shaped frame 21 fixedly connected to the bottom of the hydraulic rod, a rotating machine is fixedly connected to the side of the U-shaped frame 21, an edge sealing block 22 is fixedly connected to the output end of the rotating machine, the edge sealing block 22 is rotatably connected inside the U-shaped frame 21, a groove 23 is provided on the side of the U-shaped frame 21, a fixing rod 24 is fixedly connected inside the groove 23, a slide plate 26 is slidably connected to the surface of the fixing rod 24, a cleaning plate is provided on the side of the slide plate 26, a brush 28 is fixedly connected to the side of the cleaning plate, and a collecting frame 210 is slidably connected to the side of the U-shaped frame 21.
[0032] Under the action of the brush 28, the feeding film adhered to the surface of the edge sealing block 22 is cleaned, avoiding the phenomenon that impurities remain on the surface of the edge sealing block 22 and the edge sealing part is firm. When the bottle mouth of the plastic bottle needs to be heat-sealed, the plastic bottle is placed on the surface of the conveyor belt 5, and the two-way threaded rod 7 is twisted to make the limit rod 8 limit the plastic bottle to the middle position of the conveyor belt 5, and the motor 6 is started to make the conveyor belt 5 rotate, and then the plastic bottle is moved to the bottom of the edge sealing frame 9, and the edge sealing block 22 is squeezed to the bottle mouth of the plastic bottle by the hydraulic rod, and the film is installed between the edge sealing block 22 and the bottle mouth of the plastic bottle, and then the film is heated and sealed on the bottle mouth film of the plastic bottle, thereby achieving the effect of heat sealing.
[0033] In some embodiments of the utility model, a first spring 27 is fixedly connected to the side of the slide plate 26, and the other end of the first spring 27 is fixedly connected to the side of the cleaning plate. Under the action of the first spring 27, the cleaning plate can be adjusted at will, so that the cleaning plate can be tightly spring-fitted with the side of the edge sealing block 22, and the phenomenon of unclean cleaning caused by the lack of fit between the cleaning plate and the edge sealing block 22 will not occur. A scraper 29 is fixedly connected to the side of the cleaning plate, and the scraper 29 is tightly fitted with the side of the edge sealing block 22.
[0034] Under the action of the scraper 29, the strong impurities adhering to the surface of the edge block 22 can be scraped off, so that the edge block 22 is kept clean. The surface of the fixing rod 24 is sleeved with a second spring 25, and the two ends of the second spring 25 are respectively fixedly connected to the side of the slide plate 26 and the inner wall of the groove 23. Under the action of the second spring 25, the slide plate 26 can be pressed tightly against the side of the edge block 22, thereby avoiding the phenomenon that the slide plate 26 is far away from the edge block 22 and causing unclean cleaning. When it is necessary to clean the edge block 22, when the edge block 22 moves up, the rotating machine rotates 1 / 4, thereby causing the edge block 22 to rotate 1 / 4. When the edge block 22 is rotating, During the process, under the action of the second spring 25, the slide plate 26 is tightly attached to the side of the edge sealing block 22, and under the action of the first spring 27, the cleaning plate can be adjusted at will, so that the cleaning plate can be tightly spring-fastened to the side of the edge sealing block 22, so that the phenomenon of unclean cleaning caused by the cleaning plate and the edge sealing block 22 not fitting together will not occur. Under the action of the scraper 29, the firm impurities adhered to the surface of the edge sealing block 22 can be scraped off, so that the edge sealing block 22 remains clean. When cleaning is completed, the impurities on the surface of the edge sealing block 22 fall into the collection frame 210 for collection, avoiding the phenomenon of impurities falling at will, thereby achieving the cleaning effect.
[0035] Reference Figure 3 and Figure 4 In some embodiments of the utility model, the positioning device 3 includes a long groove 31 opened inside the fixing frame 4, and the inside of the long groove 31 is rotatably connected to a bidirectional screw 32, and the surface of the bidirectional screw 32 is threadedly connected to a blocking rod 33. Under the action of the bidirectional screw 32, the blocking rod 33 moves relatively, so that films of different widths can be fixed in the middle of the fixing frame 4, avoiding the phenomenon of film deviation, and the upper top of the blocking rod 33 is rotatably connected to a rotating rod 34, and the side of the rotating rod 34 is fixedly connected to an elastic rope 35, and the other end of the elastic rope 35 is fixedly connected to the side of the blocking rod 33.
[0036] When the film roller is sleeved on the surface of the fixed frame 4, the rotating rod 34 is pressed to one side. When the film roller is sleeved between the blocking rods 33, under the action of the elastic rope 35, the rotating rod 34 is reset to restrict the film roller between the blocking rods 33. The side of the blocking rod 33 is fixedly connected to an L-shaped rod, and a clamping rod 36 is inserted into the side of the L-shaped rod. The surface of the clamping rod 36 is sleeved with a third spring 37. The two ends of the third spring 37 are respectively fixedly connected to the side of the L-shaped rod and the side of the clamping rod 36 away from the L-shaped rod. Under the action of the third spring 37, the clamping rod 36 is inserted into the inside of the rotating rod 34 in a self-locking manner, thereby fixing the rotating rod 34. A circular groove is opened on the side of the blocking rod 33, and a ball 38 is rotatably connected to the inside of the circular groove. Under the action of the ball 38, the friction between the film roller and the blocking rod 33 is reduced, thereby avoiding the phenomenon that the film roller does not rotate due to large friction.
[0037] When heat sealing is performed, the film roller is sleeved on the film of the fixed frame 4, and the rotating rod 34 is pressed to one side. When the film roller is sleeved between the baffle rods 33, the rotating rod 34 is reset under the action of the elastic rope 35 to restrict the film roller between the baffle rods 33. Under the action of the third spring 37, the clamping rod 36 is inserted into the interior of the rotating rod 34 in a self-locking manner, thereby fixing the rotating rod 34, and twisting the bidirectional screw 32, so that the baffle rod 33 clamps the film roller. Under the action of the ball 38, the friction between the film roller and the baffle rod 33 is reduced, thereby avoiding the phenomenon that the film roller does not rotate due to the large friction, thereby achieving the positioning effect.
[0038] When it is necessary to use a heat-sealable plastic bottle packaging machine, when it is necessary to heat-seal the mouth of the plastic bottle, the plastic bottle is placed on the surface of the conveyor belt 5, and the two-way threaded rod 7 is twisted to limit the plastic bottle to the middle position of the conveyor belt 5 by the limit rod 8, and the motor 6 is started to rotate the conveyor belt 5, and then the plastic bottle is moved to the bottom of the edge sealing frame 9, and the edge sealing block 22 is squeezed to the mouth of the plastic bottle by the hydraulic rod, and the film is installed between the edge sealing block 22 and the mouth of the plastic bottle, and then the film is heated and sealed on the plastic bottle. The bottle mouth film is formed, thereby achieving the effect of heat sealing. When it is necessary to clean the edge sealing block 22, when the edge sealing block 22 moves up, the rotating machine rotates 1 / 4, thereby causing the edge sealing block 22 to rotate 1 / 4. When the edge sealing block 22 is rotating, under the action of the second spring 25, the slide plate 26 is tightly attached to the side of the edge sealing block 22. Under the action of the first spring 27, the cleaning plate can be adjusted at will, thereby allowing the cleaning plate to be tightly attached to the side of the edge sealing block 22, thereby preventing the cleaning plate from being in contact with the edge sealing block 22. The block 22 is not fitted and thus cannot be cleaned properly. Under the action of the scraper 29, the firm impurities adhering to the surface of the edge sealing block 22 can be scraped off, thereby keeping the edge sealing block 22 clean. After cleaning, the impurities on the surface of the edge sealing block 22 fall into the collection frame 210 for collection, thus avoiding the phenomenon of impurities falling randomly, thereby achieving the cleaning effect. When heat sealing is performed, the film roller is set on the film of the fixed frame 4, and the rotating rod 34 is pressed to one side. When the film roller is set between the stop rods 33, Under the action of the elastic rope 35, the rotating rod 34 is reset to restrict the film roller between the blocking rods 33. Under the action of the third spring 37, the clamping rod 36 is inserted into the interior of the rotating rod 34 in a self-locking manner, thereby fixing the rotating rod 34. The bidirectional screw 32 is turned, so that the blocking rod 33 clamps the film roller. Under the action of the ball 38, the friction between the film roller and the blocking rod 33 is reduced, thereby avoiding the phenomenon of the film roller not rotating due to the large friction, thereby achieving the positioning effect.
[0039] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A heat-sealable plastic bottle packaging machine, characterized in that: The invention comprises a bottom plate (1), the top of the bottom plate (1) is fixedly connected to a support frame, the side of the support frame is fixedly connected to a motor (6), the output end of the motor (6) is fixedly connected to a roller, the surface of the roller is sleeved with a conveyor belt (5), the top of the bottom plate (1) is provided with a rectangular groove, the interior of the rectangular groove is rotatably connected to a bidirectional threaded rod (7), the surface of the bidirectional threaded rod (7) is threadedly connected to a limit rod (8), the top of the bottom plate (1) is fixedly connected to an edge banding frame (9), the side of the edge banding frame (9) is fixedly connected to a fixed frame (4), the surface of the fixed frame (4) is provided with a positioning device (3), the bottom of the edge banding frame (9) is fixedly connected to a hydraulic rod, and the bottom of the hydraulic rod is provided with a cleaning device (2).
2. The heat-sealable plastic bottle packaging machine according to claim 1, characterized in that: The cleaning device (2) comprises a U-shaped frame (21) fixedly connected to the bottom of the hydraulic rod, a rotating machine fixedly connected to the side of the U-shaped frame (21), an edge sealing block (22) fixedly connected to the output end of the rotating machine, the edge sealing block (22) rotatably connected inside the U-shaped frame (21), a groove (23) is provided on the side of the U-shaped frame (21), a fixing rod (24) is fixedly connected inside the groove (23), a slide plate (26) is slidably connected to the surface of the fixing rod (24), a cleaning plate is provided on the side of the slide plate (26), a brush (28) is fixedly connected to the side of the cleaning plate, and a collecting frame (210) is slidably connected to the side of the U-shaped frame (21).
3. The heat-sealable plastic bottle packaging machine according to claim 2, characterized in that: A first spring (27) is fixedly connected to the side surface of the slide plate (26), and the other end of the first spring (27) is fixedly connected to the side surface of the cleaning plate.
4. The heat-sealable plastic bottle packaging machine according to claim 2, characterized in that: A scraper (29) is fixedly connected to the side of the cleaning plate, and the scraper (29) is tightly fitted to the side of the edge sealing block (22).
5. The heat-sealable plastic bottle packaging machine according to claim 2, characterized in that: A second spring (25) is sleeved on the surface of the fixing rod (24), and two ends of the second spring (25) are respectively fixedly connected to the side surfaces of the slide plate (26) and the inner wall of the groove (23).
6. The heat-sealable plastic bottle packaging machine according to any one of claims 1 to 5, characterized in that: The positioning device (3) comprises a long slot (31) opened inside the fixing frame (4), a bidirectional screw rod (32) is rotatably connected inside the long slot (31), and a blocking rod (33) is threadedly connected on the surface of the bidirectional screw rod (32).
7. The heat-sealable plastic bottle packaging machine according to claim 6, characterized in that: The top of the blocking rod (33) is rotatably connected to a rotating rod (34), the side of the rotating rod (34) is fixedly connected to an elastic rope (35), and the other end of the elastic rope (35) is fixedly connected to the side of the blocking rod (33).
8. The heat-sealable plastic bottle packaging machine according to claim 6, characterized in that: The side of the blocking rod (33) is fixedly connected to an L-shaped rod, the side of the L-shaped rod is inserted with a clamping rod (36), the surface of the clamping rod (36) is sleeved with a third spring (37), and the two ends of the third spring (37) are respectively fixedly connected to the side of the L-shaped rod and the side of the clamping rod (36) away from the L-shaped rod.
9. The heat-sealable plastic bottle packaging machine according to claim 6, characterized in that: A circular groove is formed on the side of the blocking rod (33), and a ball (38) is rotatably connected inside the circular groove.