Forming mechanism of plastic uptake forming machine

Abstract

The utility model discloses a forming mechanism of a plastic uptake forming machine, and relates to the technical field of plastic uptake machines. The device comprises a fixing frame, a fixing mechanism and a forming mechanism are arranged on the fixing frame, the fixing mechanism comprises a bottom frame fixedly connected to the top face of the fixing frame, a plastic plate is placed on the top face of the bottom frame, a top frame is arranged above the plastic plate, and the plastic plate is arranged above the top frame. First connecting blocks are fixedly connected to the left side and the right side of the top frame correspondingly, second connecting blocks are fixedly connected to the left side and the right side of the bottom frame correspondingly, inserting grooves are formed in the two second connecting blocks correspondingly, sliding rods slidably penetrate through the two first connecting blocks correspondingly, and rotary knobs are fixedly connected to the top ends of the two sliding rods correspondingly. And clamping blocks are fixedly connected to the bottom ends of the two sliding rods. By arranging the fixing mechanism, the stability of the plastic plate in the forming process can be ensured while the four edges of the plastic plate are conveniently fixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum forming machines, in particular to a forming mechanism of a vacuum forming machine. Background Art

[0002] In the prior art, after searching, it was found that a Chinese patent disclosed "a molding mechanism of a blister molding machine", and its announcement number is "CN216182697U". This patent mainly starts the electric push rod to drive the rotating plate to rotate 180 degrees and the movable frame to move back and forth longitudinally, so that the upper mold can be respectively fitted with the two lower molds, which can facilitate the blister molding of the product, and when loading the product, the two lower molds can be used to load the material alternately, so it has good convenience and speed.

[0003] However, the above device only fixes two corners of the product. When the top mold is formed, the other two corners are likely to wrinkle and deform under the action of pressure, resulting in unstable molding, thus affecting the final shape and quality of the product. Utility Model Content

[0004] The utility model aims to provide a molding mechanism of a vacuum forming machine, which is provided with a fixing mechanism to firmly fix a plastic plate between a bottom frame and a top frame, so as to prevent the plastic plate from loosening during the molding process and facilitate fixing the four sides of the plastic plate, thereby solving the problem that the above-mentioned device only fixes two corners of the product, and when the top mold is formed, the other two corners are likely to be wrinkled and deformed under the action of pressure.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a molding mechanism of a vacuum forming machine, comprising a fixed frame, on which a fixing mechanism and a molding mechanism are arranged, and the fixing mechanism comprises a fixing component, a limiting component and a heating component;

[0007] The fixing assembly includes a bottom frame fixedly connected to the top surface of the fixing frame, a plastic plate is placed on the top surface of the bottom frame, a top frame is arranged above the plastic plate, a first connecting block is fixedly connected to the left and right sides of the top frame, a second connecting block is fixedly connected to the left and right sides of the bottom frame, slots are provided on the two second connecting blocks, sliding rods are slidably penetrated on the two first connecting blocks, knobs are fixedly connected to the top ends of the two sliding rods, and card blocks are fixedly connected to the bottom ends of the two sliding rods, the two card blocks are respectively adapted to the two slots, the top surface of the card block contacts the bottom surface of the second connecting block, and the bottom surface of the knob is slidably connected to the top surface of the first connecting block.

[0008] Furthermore, the limiting assembly includes annular grooves formed on two sliding rods, the inner walls of the two annular grooves are rotatably connected to connecting rings respectively, a first spring is wound around the two sliding rods, the top surface of the first spring is fixedly connected to the bottom surface of the first connecting block, and the bottom surface of the first spring is fixedly connected to the top surface of the connecting ring.

[0009] Furthermore, the heating assembly includes two first electric cylinders fixedly connected to the top surface of the fixed frame, and the top surfaces of the two first electric cylinders are fixedly connected to an oven rack, and the oven rack is located above the top frame.

[0010] Furthermore, the forming mechanism includes a connecting assembly, a resetting assembly, a top mold assembly and a vacuum assembly, and the connecting assembly includes an L-shaped rod hinged on the front and back sides of the bottom frame respectively, and the top ends of the two L-shaped rods are hinged to the front and back sides of the two top frames respectively.

[0011] Furthermore, the reset assembly includes a rotating shaft fixedly connected to the bottom ends of the two L-shaped rods, and the two rotating shafts are rotatably connected to a first rotating block, the front and back sides of the bottom frame are hinged with a second rotating block, and a second spring is fixedly connected between the two first rotating blocks and the two second rotating blocks respectively.

[0012] Furthermore, the top mold assembly includes two second electric cylinders fixedly connected to the inner bottom wall of the fixed frame, the output ends of the two second electric cylinders are fixedly connected to the bottom mold, and the bottom mold is slidably connected to the inner wall of the bottom frame.

[0013] Furthermore, the vacuum pump assembly includes several vacuum pumps fixedly connected to the inner bottom wall of the fixed frame, the input ends of several of the vacuum pumps are fixedly connected to hoses, several holes are opened on the bottom mold, the top ends of several of the hoses are respectively fixedly connected to the inner walls of the holes, and the outer diameter of the hoses is the same as the inner diameter of the holes.

[0014] The utility model has the following beneficial effects:

[0015] 1. By providing a fixing mechanism, after placing the plastic plate between the bottom frame and the top frame, slide the card block into the inner wall of the slot, press the knob downward and turn the card block so that the top surface of the card block contacts the bottom surface of the second connecting block, and the bottom surface of the knob contacts the top surface of the first connecting block, thereby firmly fixing the plastic plate between the bottom frame and the top frame, preventing the plastic plate from loosening during the molding process, facilitating the fixing of the four sides of the plastic plate, and ensuring the stability of the plastic plate during the molding process.

[0016] 2. By providing a molding mechanism, when the plastic plate is firmly fixed between the bottom frame and the top frame, the second spring is stretched under the action of the L-shaped rod, the rotating shaft, the first rotating block and the second rotating block, and when the block slides upward along the inner wall of the slot, the stretched second spring is released, so that the first rotating block is pulled to move toward the second rotating block. At this time, the top frame is lifted up under the action of the L-shaped rod, so that the plastic plate can be easily taken out, further improving the convenience of the device. The second electric cylinder can drive the bottom mold to move up and down to perform top molding on the preheated plastic plate. After the plastic plate is stretched upward, the vacuum pump can be turned on to extract the air in the gap between the plastic plate and the bottom mold through the hole groove and the hose, so that the plastic plate can be formed.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the fixing mechanism of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the slide bar of the utility model;

[0022] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Fixed frame; 2. Fixed mechanism; 3. Molding mechanism; 21. Bottom frame; 22. Plastic plate; 23. Top frame; 24. First connecting block; 25. Second connecting block; 26. Slot; 27. Slide bar; 28. Knob; 29. ​​Block; 291. Annular groove; 292. Connecting ring; 293. First spring; 294. First electric cylinder; 295. Oven rack; 31. L-shaped rod; 32. Rotating shaft; 33. First rotating block; 34. Second rotating block; 35. Second spring; 36. Second electric cylinder; 37. Bottom mold; 38. Vacuum pump; 39. Hose; 391. Hole groove. DETAILED DESCRIPTION

[0026] 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 of 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.

[0027] See also Figure 1-5 As shown, the utility model is a molding mechanism of a vacuum forming machine, comprising a fixed frame 1, on which a fixing mechanism 2 and a molding mechanism 3 are arranged, and the fixing mechanism 2 comprises a fixing component, a limiting component and a heating component;

[0028] The fixing assembly includes a bottom frame 21 fixedly connected to the top surface of the fixing frame 1, a plastic plate 22 is placed on the top surface of the bottom frame 21, a top frame 23 is arranged above the plastic plate 22, a first connecting block 24 is fixedly connected to the left and right sides of the top frame 23, a second connecting block 25 is fixedly connected to the left and right sides of the bottom frame 21, a slot 26 is provided on each of the two second connecting blocks 25, a sliding rod 27 is slidably penetrated through each of the two first connecting blocks 24, a knob 28 is fixedly connected to the top of each of the two sliding rods 27, a card block 29 is fixedly connected to the bottom of each of the two sliding rods 27, the two card blocks 29 are respectively adapted to the two slots 26, the top surface of the card block 29 is in contact with the bottom surface of the second connecting block 25, the bottom surface of the knob 28 is slidably connected to the top surface of the first connecting block 24, and the limiting assembly includes a slot 26 ... The annular groove 291 on the slide bar 27, the inner walls of the two annular grooves 291 are rotatably connected with connecting rings 292 respectively, the two slide bars 27 are wound with first springs 293, the top surface of the first spring 293 is fixedly connected to the bottom surface of the first connecting block 24, the bottom surface of the first spring 293 is fixedly connected to the top surface of the connecting ring 292, the heating component includes two first electric cylinders 294 fixedly connected to the top surface of the fixed frame 1, the top surfaces of the two first electric cylinders 294 are fixedly connected with oven racks 295, the oven racks 295 are located above the top frame 23, and the fixing mechanism 2 is provided to firmly fix the plastic plate 22 between the bottom frame 21 and the top frame 23 to prevent the plastic plate 22 from loosening during the molding process, and to facilitate the fixing of the four sides of the plastic plate while ensuring the stability of the plastic plate 22 during the molding process.

[0029] The molding mechanism 3 includes a connecting component, a reset component, a top mold component and an exhaust component. The connecting component includes an L-shaped rod 31 respectively hinged on the front and back of the bottom frame 21, and the top ends of the two L-shaped rods 31 are respectively hinged to the front and back of the two top frames 23. The reset component includes a rotating shaft 32 fixedly connected to the bottom ends of the two L-shaped rods 31, and the two rotating shafts 32 are rotatably connected to the first rotating block 33. The front and back of the bottom frame 21 are hinged with a second rotating block 34, and the two first rotating blocks 33 and the two second rotating blocks 34 are respectively fixedly connected with a second spring 35. The top mold component includes a fixed connection in the fixed frame 1. There are two second electric cylinders 36 on the bottom wall, and the output ends of the two second electric cylinders 36 are fixedly connected to the bottom mold 37. The bottom mold 37 is slidably connected to the inner wall of the bottom frame 21. The vacuum assembly includes a plurality of vacuum pumps 38 fixedly connected to the inner bottom wall of the fixed frame 1. The input ends of the plurality of vacuum pumps 38 are fixedly connected to hoses 39. A plurality of holes 391 are provided on the bottom mold 37. The top ends of the plurality of hoses 39 are respectively fixedly connected to the inner walls of the holes 391. The outer diameter of the hose 39 is the same as the inner diameter of the holes 391. By providing the molding mechanism 3, the plastic plate 22 can be easily taken out, thereby further improving the convenience of the overall device.

[0030] A specific application of this embodiment is: by providing a fixing mechanism 2, after placing the plastic plate 22 between the bottom frame 21 and the top frame 23, slide the block 29 into the inner wall of the slot 26, press the knob 28 downward and rotate the block 29, so that the top surface of the block 29 contacts the bottom surface of the second connecting block 25, and the bottom surface of the knob 28 contacts the top surface of the first connecting block 24, so that the plastic plate 22 is firmly fixed between the bottom frame 21 and the top frame 23, avoiding the plastic plate 22 from sliding during the molding process, ensuring the stability of the plastic plate 22 during the molding process, and after being fixed, the first spring 293 is in a stretched state, and the connecting ring 29 2 cooperates with the annular groove 291 so that the connecting ring 292 can only rotate on the inner wall of the annular groove 291. After the plastic plate 22 is formed, the knob 28 can be manually twisted to rotate the block 29 to the slot 26. At this time, the knob 28 is loosened, the stretched first spring 293 is released, and the block 29 slides upward along the inner wall of the slot 26, so that the top frame 23 can be disassembled, so as to facilitate the removal of the formed plastic plate 22. The first electric cylinder 294 cooperates with the oven rack 295 so that the first electric cylinder 294 can drive the oven rack 295 to move up and down, so that the oven rack 295 can preheat the plastic plate 22 before it is formed, so as to facilitate the forming;

[0031] By providing the molding mechanism 3, when the plastic plate 22 is firmly fixed between the bottom frame 21 and the top frame 23, the second spring 35 is stretched under the action of the L-shaped rod 31, the rotating shaft 32, the first rotating block 33 and the second rotating block 34, and when the block 29 slides upward along the inner wall of the slot 26, the stretched second spring 35 is released, so that the first rotating block 33 is pulled to move toward the second rotating block 34. At this time, the top frame 23 is lifted up under the action of the L-shaped rod 31, so that the plastic plate 22 can be easily taken out, further improving the convenience of the device. The second electric cylinder 36 can drive the bottom mold 37 to move up and down to perform top molding on the preheated plastic plate 22. After the plastic plate 22 is stretched upward, the vacuum pump 38 can be turned on to extract the air in the gap between the plastic plate 22 and the bottom mold 37 through the hole groove 391 and the hose 39, so that the plastic plate 22 can be molded.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A forming mechanism of a vacuum forming machine, comprising a fixed frame (1), characterized in that: The fixing frame (1) is provided with a fixing mechanism (2) and a forming mechanism (3), wherein the fixing mechanism (2) comprises a fixing component, a limiting component and a heating component; The fixing assembly comprises a bottom frame (21) fixedly connected to the top surface of the fixing frame (1); a plastic plate (22) is placed on the top surface of the bottom frame (21); a top frame (23) is arranged above the plastic plate (22); a first connecting block (24) is fixedly connected to the left and right sides of the top frame (23); a second connecting block (25) is fixedly connected to the left and right sides of the bottom frame (21); and slots are provided on the two second connecting blocks (25). (26), a slide bar (27) is slidably passed through the two first connecting blocks (24), the top ends of the two slide bars (27) are fixedly connected with a knob (28), the bottom ends of the two slide bars (27) are fixedly connected with a clamping block (29), the two clamping blocks (29) are respectively matched with the two slots (26), the top surface of the clamping block (29) is in contact with the bottom surface of the second connecting block (25), and the bottom surface of the knob (28) is slidably connected with the top surface of the first connecting block (24).

2. A forming mechanism of a vacuum forming machine according to claim 1, characterized in that: The limiting assembly comprises annular grooves (291) each provided on two slide bars (27), the inner walls of the two annular grooves (291) being rotatably connected to connecting rings (292) respectively, a first spring (293) being wound around the two slide bars (27), the top surface of the first spring (293) being fixedly connected to the bottom surface of the first connecting block (24), and the bottom surface of the first spring (293) being fixedly connected to the top surface of the connecting ring (292).

3. A forming mechanism of a vacuum forming machine according to claim 2, characterized in that: The heating assembly comprises two first electric cylinders (294) fixedly connected to the top surface of the fixed frame (1), and the top surfaces of the two first electric cylinders (294) are fixedly connected to an oven rack (295), and the oven rack (295) is located above the top frame (23).

4. The forming mechanism of the vacuum forming machine according to claim 3, characterized in that: The forming mechanism (3) comprises a connecting assembly, a resetting assembly, a top mold assembly and an exhaust assembly, wherein the connecting assembly comprises an L-shaped rod (31) respectively hinged on the front and back sides of the bottom frame (21), and the top ends of the two L-shaped rods (31) are respectively hinged on the front and back sides of the two top frames (23).

5. The forming mechanism of the vacuum forming machine according to claim 4, characterized in that: The reset assembly comprises a rotating shaft (32) fixedly connected to the bottom ends of two L-shaped rods (31), the two rotating shafts (32) are rotatably connected to a first rotating block (33), the front and back sides of the bottom frame (21) are hingedly connected to a second rotating block (34), and a second spring (35) is fixedly connected between the two first rotating blocks (33) and the two second rotating blocks (34), respectively.

6. A forming mechanism of a vacuum forming machine according to claim 5, characterized in that: The top mold assembly comprises two second electric cylinders (36) fixedly connected to the inner bottom wall of the fixed frame (1), the output ends of the two second electric cylinders (36) are fixedly connected to a bottom mold (37), and the bottom mold (37) is slidably connected to the inner wall of the bottom frame (21).

7. A forming mechanism of a vacuum forming machine according to claim 6, characterized in that: The vacuum assembly comprises a plurality of vacuum pumps (38) fixedly connected to the inner bottom wall of the fixed frame (1); the input ends of the plurality of vacuum pumps (38) are fixedly connected to a hose (39); a plurality of holes (391) are provided on the bottom mold (37); the top ends of the plurality of hoses (39) are respectively fixedly connected to the inner walls of the holes (391); and the outer diameter of the hoses (39) is the same as the inner diameter of the holes (391).

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