A multi-layer co-extrusion sheet machine
Patent Information
- Application Number
- CN202521961713.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-09-12
AI Technical Summary
现有的多层共挤片材机通过螺旋挤出机实现吸塑包装材料的热熔挤出，热熔后的吸塑包装进入成型仓的流道内部，而后在外部输送机构的牵引作用下进入冷却设备和外部收卷设备，在成型仓出料处宽度一定，仅能输出对应厚度的吸塑包装材料片材，无法有效应对不同吸塑包装需求，进而使得多层共挤片材机的适应范围缩小，影响多层共挤片材机的使用便捷程度
[0011]与现有技术相比，本实用新型的有益效果是：本多层共挤片材机，具有以下好处：
Smart Images
Figure CN224810035U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blister packaging production technology, specifically a multi-layer co-extrusion sheet machine. Background Technology
[0002] Blister packaging is a type of packaging made by heating and softening thermoplastic sheets (such as PVC, PET, PP, PS, etc.) through a vacuum forming process, adsorbing them onto the surface of a mold to form a specific shape, and then cooling, cutting, sealing, and other processes. Multi-layer co-extrusion sheet machines are important equipment in the blister packaging process. Existing multi-layer co-extrusion sheet machines achieve hot-melt extrusion of blister packaging materials through a screw extruder. The hot-melt blister packaging enters the flow channel of the forming chamber, and then enters the cooling equipment and external winding equipment under the traction of the external conveying mechanism. The width at the discharge point of the forming chamber is fixed, and it can only output blister packaging material sheets of the corresponding thickness. It cannot effectively meet the needs of different blister packaging, thus narrowing the adaptability of the multi-layer co-extrusion sheet machine and affecting the ease of use of the multi-layer co-extrusion sheet machine. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a multi-layer co-extrusion sheet machine that can quickly adjust the thickness of the extruded material without the need for a complete replacement of the forming mold, effectively improving the efficiency of multi-layer co-extrusion sheets and effectively solving the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer co-extrusion sheet machine, including a forming chamber, three extrusion chambers arranged on the rear side of the forming chamber, uniformly distributed flow channels arranged inside the forming chamber, and also including an adjustment mechanism; Adjustment mechanism: It includes a chute, a sliding seat, a sliding rod, an adjusting plate, and a connecting shaft. The chute is located on the left side of the flow channel. The sliding seat is slidably connected inside the chute. The right end of the sliding seat is rotatably connected to the connecting shaft. The front end of the left and right surfaces of the flow channel is provided with a vertical limiting groove. A sliding rod is slidably connected between two adjacent limiting grooves. An adjusting plate is fixedly connected to the middle of the sliding rod. The right end of the connecting shaft is fixedly connected to the lower end of the left side surface of the adjacent adjusting plate. The thickness of the extruded material can be quickly adjusted without replacing the entire molding die, which effectively improves the efficiency of multi-layer co-extrusion sheets.
[0005] Furthermore, the adjustment mechanism also includes a rotating shaft, external threads, an adjustment seat, and a knob. The adjustment seats are all fixedly connected to the left end of the sliding seat. An adjustment chamber is provided at the lower end of the left side surface of the forming chamber. The adjustment seats are all located inside the adjustment chamber. The rotating shaft is rotatably connected inside the adjustment chamber. The outer surface of the rotating shaft is provided with evenly distributed external threads. The external threads are all threadedly connected to the adjacent adjustment seats. The front end of the rotating shaft extends to the front side of the adjustment chamber. A knob is fixedly connected to the front end of the rotating shaft. Corrugated plates are provided between the rear inner wall of the slide and the rear surface of the adjacent sliding seat, and between the front inner wall of the slide and the front surface of the adjacent sliding seat, to provide driving force for adjusting the position of the adjustment plate.
[0006] Furthermore, the left end of the adjustment chamber is provided with evenly distributed observation windows, each of which corresponds laterally to the adjacent slide groove. Each observation window is provided with a scale bar inside, and an indicator bar is provided in the middle of the left side surface of the adjustment seat. The indicator bar is installed in conjunction with the adjacent scale bar to observe the position status of the adjustment seat.
[0007] Furthermore, each of the extrusion chambers is equipped with an extrusion hopper at its front end, and each of the extrusion hoppers is equipped with a connecting pipe at its front end. The front end of each connecting pipe is connected to the upper end of the corresponding flow channel. Each of the flow channels is fixedly connected with an arc-shaped guide plate, and each of the arc-shaped guide plates is equipped with uniformly distributed through holes. Each of the extrusion chambers is equipped with a feeding hopper at its upper end, providing a channel for the flow of blister packaging raw materials.
[0008] Furthermore, a controller is provided on the left side of the molding chamber. The input terminal of the controller is electrically connected to an external power source to control various electrical appliances.
[0009] Furthermore, each of the extrusion chambers is equipped with a drive chamber at its rear. The interior of each extrusion chamber is rotatably connected to a rotating shaft. The outer surface of each rotating shaft is fixedly connected to a spiral blade. The rear end of each rotating shaft extends into the interior of the drive chamber. The rear end of each rotating shaft is fixedly connected to a driven gear. A motor is installed at the lower end of the rear surface of each drive chamber. The front end of each motor output shaft is fixedly connected to a drive gear. Each drive gear meshes with a vertically adjacent driven gear. The input end of each motor is electrically connected to the output end of the controller, thereby realizing the spiral extrusion of the blister packaging material.
[0010] Furthermore, a heating chamber is provided in the middle of the outer surface of the extrusion chamber, and heaters are uniformly distributed in the middle of the outer surface of the extrusion chamber. The heaters are all located inside the heating chambers, and the input end of the heaters is electrically connected to the output end of the controller to provide heat for the extrusion of the blister packaging.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This multi-layer co-extrusion sheet machine has the following advantages: The sliding seat is slidable by a screw mechanism, and the adjusting plate slides between the slide groove and the corresponding limiting groove and always remains in an inclined state. This allows for the adjustment of the distance between the lower end of the adjusting plate and the corresponding flow channel rear surface. The thickness of the extruded material can be quickly adjusted without the need to replace the entire molding die, which effectively improves the efficiency of multi-layer co-extrusion sheets. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the internal structure of this utility model; Figure 3 This is a cross-sectional view of the extrusion chamber of this utility model; Figure 4 This is a cross-sectional view of the front side of the molding chamber of this utility model. Figure 5 This is an enlarged structural diagram of point A in this utility model; Figure 6 This is an enlarged structural diagram of section B of the present invention; Figure 7 This is a cross-sectional view of the telescopic plate of this utility model.
[0013] In the diagram: 1. Molding chamber, 2. Extrusion chamber, 3. Heating chamber, 4. Drive chamber, 5. Adjustment chamber, 6. Adjustment mechanism, 61. Rotary shaft, 62. External thread, 63. Slide groove, 64. Sliding seat, 65. Adjustment seat, 66. Slide rod, 67. Adjustment plate, 68. Connecting shaft, 69. Knob, 7. Flow channel, 8. Arc-shaped guide plate, 9. Telescopic plate, 10. Extrusion hopper, 11. Connecting pipe, 12. Feed hopper, 13. Observation window, 14. Scale bar, 15. Indicator bar, 16. Rotating shaft, 17. Spiral blade, 18. Heater, 19. Controller, 20. Driven gear, 21. Drive gear, 22. Motor. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] Please see Figure 1-7 This embodiment provides a technical solution: a multi-layer co-extrusion sheet machine, including a forming chamber 1, three extrusion chambers 2 are arranged on the rear side of the forming chamber 1, uniformly distributed flow channels 7 are arranged inside the forming chamber 1, a controller 19 is arranged on the left side of the forming chamber 1, the input end of the controller 19 is electrically connected to an external power supply, and an adjustment mechanism 6 is also included. Adjustment mechanism 6 includes a slide 63, a sliding seat 64, a slide rod 66, an adjustment plate 67, and a connecting shaft 68. The slide 63 is located on the left side of the flow channel 7. The sliding seat 64 is slidably connected inside each slide 63. The right end of each sliding seat 64 is rotatably connected to the connecting shaft 68. Vertical limiting grooves are provided at the front ends of both sides of the flow channel 7. A slide rod 66 is slidably connected between two adjacent horizontally adjacent limiting grooves. An adjustment plate 67 is fixedly connected to the middle of each slide rod 66. The right end of the connecting shaft 68 is fixedly connected to the lower end of the left side surface of the adjacent adjustment plate 67. Adjustment mechanism 6 also includes a rotating shaft 61, an external thread 62, an adjustment seat 65, and a knob 69. The adjustment seat 65 is fixedly connected to the left end of the sliding seat 64. The left side surface of the forming chamber 1... The lower end is provided with an adjustment chamber 5, and adjustment seats 65 are all located inside the adjustment chamber 5. A rotating shaft 61 is rotatably connected inside the adjustment chamber 5. The outer surface of the rotating shaft 61 is provided with evenly distributed external threads 62, and the external threads 62 are all threadedly connected to the adjacent adjustment seats 65. The front end of the rotating shaft 61 extends to the front side of the adjustment chamber 5, and a knob 69 is fixedly connected to the front end of the rotating shaft 61. Telescopic plates 9 are provided between the rear inner wall of the slide groove 63 and the rear surface of the adjacent sliding seat 64, and between the front inner wall of the slide groove 63 and the front surface of the adjacent sliding seat 64. (The telescopic plates 9 adopt existing sliding door technology. The telescopic plates 9 are composed of a telescopic chamber and a sliding plate. The sliding plate is slidably connected inside the front end of the telescopic chamber. Rubber pads can be set at the edge of the sliding plate to ensure a tight seal.) The telescopic chamber is sealed, with both its upper and lower ends fixedly connected to the inner wall of the slide 63. The front end of the sliding plate is fixedly connected to the adjacent surface of the sliding seat 64 on the front side. During the movement of the sliding seat 64, the sliding plate slides inside the telescopic chamber, thus sealing the slide 63. The left end of the regulating chamber 5 is provided with evenly distributed observation windows 13, each of which corresponds laterally to the adjacent slide 63. Each observation window 13 has a scale bar 14 inside. (The distance the sliding seat 64 moves forward is equal to the distance the lower end of the regulating plate 67 moves forward. The passage width of the flow channel 7 within the longitudinal movement stroke of the lower end of the regulating plate 67 is quantified and displayed by the scale bar 14.) The middle of the left side surface of the regulating seat 65 is provided with an indicator bar 15, which corresponds to the adjacent scale bar 14. 4. During installation, according to the required sheet thickness, rotate knob 69. Rotating knob 69 drives rotating shaft 61, which in turn drives the evenly distributed external threads 62, causing adjusting seat 65 to move forward. The forward movement of adjusting seat 65 causes adjacent sliding seats 64 to move. Sliding seats 64 slide forward within their corresponding grooves 63. The forward movement of sliding seats 64, via corresponding connecting shaft 68, drives adjacent adjusting plates 67 to move forward, causing the upper ends of adjusting plates 67 to push corresponding sliding rods 66 to slide vertically between adjacent limiting grooves. Simultaneously, the forward movement of adjusting seat 65 causes adjacent indicator bars 15 to move forward. The scale inside the scale bar 14, which is on the same horizontal and vertical plane as the adjacent indicator bars 15, represents the width of the flow channel 7 in the current state.When the width of the flow channel 7 opening is equal to the required sheet thickness to be extruded, stop rotating knob 69; Among them: the front end of the extrusion chamber 2 is provided with an extrusion bucket 10, the front end of the extrusion bucket 10 is provided with a connecting pipe 11, the front end of the connecting pipe 11 is connected to the upper end of the corresponding flow channel 7, the upper end of the flow channel 7 is fixedly connected with an arc-shaped guide plate 8, the interior of the arc-shaped guide plate 8 is provided with uniformly distributed through holes, and the upper end of the extrusion chamber 2 is provided with a feed hopper 12. The following configuration is provided: A drive chamber 4 is located on the rear side of each extrusion chamber 2. A rotating shaft 16 is rotatably connected inside each extrusion chamber 2. Spiral blades 17 are fixedly connected to the outer surface of each rotating shaft 16. The rear end of each rotating shaft 16 extends into the interior of the drive chamber 4. A driven gear 20 is fixedly connected to the rear end of each rotating shaft 16. A motor 22 is located at the lower end of the rear surface of each drive chamber 4. A drive gear 21 is fixedly connected to the front end of the output shaft of each motor 22. Each drive gear 21 meshes with a vertically adjacent driven gear 20. The input end of each motor 22 is electrically connected to the output end of a controller 19. The controller 19 enables the motor 22 to operate. The rotation of the output shaft of the motor 22 drives the drive gear 21 to rotate. The rotation of the drive gear 21 causes the adjacent driven gear 20 to rotate. The rotation of the driven gear 20 causes the adjacent rotating shaft 18 to rotate. The rotation of the rotating shaft 18 causes the adjacent spiral blade 19 to rotate. Simultaneously, the corresponding type of blister packaging material is injected into the three feed hoppers 12. Under the action of the adjacent spiral blades 19, the blister packaging material moves forward inside the corresponding extrusion chamber 2. The spiral blades 19 and the inner wall of the extrusion chamber 2 support each other and generate shear force to extrude the blister packaging material. The blister packaging material after hot melting enters the extrusion hopper 10. After being extruded by the extrusion hopper 10, it enters the connecting pipe 11 and then enters the corresponding flow channel 7. The blister packaging material after hot melting falls to the upper end of the arc guide plate 8. Under the guidance of the arc guide plate 8, it flows away from the center of the forming chamber 1 and continues to fall through the through hole inside the arc guide plate 8. The blister packaging material falls to the upper surface of the adjusting plate 67. Under the guidance of the inclined adjusting plate 67, the blister packaging material is extruded at the corresponding thickness. Then, the external conveyor conveys the extruded sheet to the winding unit. Among them: a heating chamber 3 is provided in the middle of the outer surface of the extrusion chamber 2, and a heater 18 is provided in the middle of the outer surface of the extrusion chamber 2. The heater 18 is located inside the heating chamber 3. The input end of the heater 18 is electrically connected to the output end of the controller 19. At the same time, the controller 19 realizes the operation of the heater 18, and the heater 18 realizes the heating of the corresponding extrusion chamber 2. The blister packaging material in the extrusion absorbs heat and melts.
[0016] The working principle of the multi-layer co-extrusion sheet machine provided by this utility model is as follows: During operation, the operator first places the forming chamber 1, the extrusion chamber 2, and other mechanisms stably in the horizontal working area. After the placement is stable, the operator rotates the knob 69 according to the required sheet thickness. The rotation of the knob 69 drives the rotating shaft 61 to rotate, which in turn drives the evenly distributed external threads 62 to rotate, thereby causing the adjusting seat 65 to move forward. The forward movement of the adjusting seat 65 drives the adjacent sliding seat 64 to move. The sliding seats 64 slide forward inside the corresponding sliding grooves 63. The forward movement of the sliding seats 64 is connected by the corresponding connecting shaft 6. 8 moves the adjacent adjusting plate 67 forward, causing the upper end of each adjusting plate 67 to push the corresponding slide rod 66 to slide vertically between adjacent limiting grooves. Simultaneously, the adjusting seat 65 moves forward, causing the adjacent indicator strip 15 to move forward. The scale inside the scale strip 14, which is on the same horizontal and vertical plane as the adjacent indicator strip 15, represents the width of the flow channel 7 in the current state. When the width of the flow channel 7 is equal to the required sheet thickness, the knob 69 stops rotating. Then, the controller 19 starts the motor 22. The output shaft of the motor 22 rotates, driving the drive gear 21 to rotate. The drive gear 21 rotates the adjacent... The driven gear 20 rotates, driving the adjacent rotating shaft 18 to rotate. The rotating shaft 18 then drives the adjacent spiral blade 19 to rotate. Simultaneously, personnel inject the corresponding type of blister packaging material into the three feed hoppers 12. Under the action of the adjacent spiral blades 19, the blister packaging material moves forward inside the corresponding extrusion chamber 2. The spiral blades 19 and the inner wall of the extrusion chamber 2 support each other, and the resulting shearing force extrudes the blister packaging material. At the same time, the controller 19 activates the heater 18, which heats the corresponding extrusion chamber 2. The extruded blister packaging material absorbs... Heat is used to melt the blister packaging material. The melted blister packaging material enters the extrusion hopper 10 and is extruded into the connecting pipe 11. Then it enters the corresponding flow channel 7. The melted blister packaging material falls onto the upper end of the arc-shaped guide plate 8. Under the guidance of the arc-shaped guide plate 8, it flows away from the center of the forming chamber 1 and continues to fall through the through holes inside the arc-shaped guide plate 8. The blister packaging material falls onto the upper surface of the adjusting plate 67. Under the guidance of the inclined adjusting plate 67, the blister packaging material is extruded at the corresponding thickness. Then the external conveyor transports the extruded sheet to the winding unit.
[0017] It is worth noting that the controller 19 disclosed in the above embodiments can be an S7-300, and the controller 19 controls the operation of the heater 18 and the motor 22 using methods commonly used in the prior art.
[0018] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A multi-layer co-extrusion sheet machine, comprising a forming chamber (1), three extrusion chambers (2) arranged on the rear side of the forming chamber (1), and uniformly distributed flow channels (7) arranged inside the forming chamber (1), characterized in that: It also includes an adjustment mechanism (6); Adjustment mechanism (6): It includes a slide groove (63), a sliding seat (64), a slide rod (66), an adjustment plate (67), and a connecting shaft (68). The slide groove (63) is located on the left side of the flow channel (7). The slide groove (63) is slidably connected to the inside of the slide groove (64). The right end of the slide seat (64) is rotatably connected to the connecting shaft (68). The front ends of the left and right surfaces of the flow channel (7) are provided with vertical limiting grooves. The slide rod (66) is slidably connected between two adjacent limiting grooves. The middle part of the slide rod (66) is fixedly connected to the adjustment plate (67). The right end of the connecting shaft (68) is fixedly connected to the lower end of the left side surface of the adjacent adjustment plate (67).
2. The multi-layer co-extrusion sheet machine according to claim 1, characterized in that: The adjustment mechanism (6) also includes a rotating shaft (61), an external thread (62), an adjustment seat (65), and a knob (69). The adjustment seats (65) are all fixedly connected to the left end of the sliding seat (64). An adjustment chamber (5) is provided at the lower end of the left side surface of the forming chamber (1). The adjustment seats (65) are all located inside the adjustment chamber (5). The rotating shaft (61) is rotatably connected inside the adjustment chamber (5). The outer surface of the rotating shaft (61) is provided with evenly distributed external threads (62). The external threads (62) are all threadedly connected to the adjacent adjustment seats (65). The front end of the rotating shaft (61) extends to the front side of the adjustment chamber (5). The front end of the rotating shaft (61) is fixedly connected to a knob (69). A telescopic plate (9) is provided between the rear inner wall of the slide groove (63) and the rear surface of the adjacent sliding seat (64), and between the front inner wall of the slide groove (63) and the front surface of the adjacent sliding seat (64).
3. A multi-layer co-extrusion sheet machine according to claim 2, characterized in that: The left end of the adjustment chamber (5) is provided with evenly distributed observation windows (13), each of which corresponds laterally to the adjacent slide (63). Each of the observation windows (13) is provided with a scale strip (14), and each of the left side surfaces of the adjustment seat (65) is provided with an indicator strip (15), which is installed in conjunction with the adjacent scale strip (14).
4. A multi-layer co-extrusion sheet machine according to claim 1, characterized in that: Each of the extrusion chambers (2) is provided with an extrusion bucket (10) at the front end, and each of the extrusion buckets (10) is provided with a connecting pipe (11) at the front end. The front end of the connecting pipe (11) is connected to the upper end of the corresponding flow channel (7). Each of the flow channels (7) is fixedly connected with an arc-shaped guide plate (8). Each of the arc-shaped guide plates (8) is provided with uniformly distributed through holes. Each of the extrusion chambers (2) is provided with a feed hopper (12) at the upper end.
5. A multi-layer co-extrusion sheet machine according to claim 1, characterized in that: A controller (19) is provided on the left side of the molding chamber (1), and the input terminal of the controller (19) is electrically connected to an external power source.
6. A multi-layer co-extrusion sheet machine according to claim 5, characterized in that: Each of the extrusion chambers (2) has a drive chamber (4) on its rear side. Each of the extrusion chambers (2) has a rotating shaft (16) rotatably connected inside. Each of the rotating shafts (16) has a spiral blade (17) fixedly connected to its outer surface. Each of the rotating shafts (16) extends to the interior of the drive chamber (4). Each of the rotating shafts (16) has a driven gear (20) fixedly connected to its rear end. Each of the drive chambers (4) has a motor (22) at the lower end of its rear surface. Each of the motors (22) has a drive gear (21) fixedly connected to its output shaft. Each of the drive gears (21) meshes with the vertically adjacent driven gear (20). Each of the motors (22) has an input end electrically connected to the output end of the controller (19).
7. A multi-layer co-extrusion sheet machine according to claim 5, characterized in that: A heating chamber (3) is provided in the middle of the outer surface of the extrusion chamber (2). A heater (18) is provided in the middle of the outer surface of the extrusion chamber (2). The heaters (18) are all located inside the heating chamber (3). The input end of the heater (18) is electrically connected to the output end of the controller (19).