Feeding device of plastic uptake forming machine

Abstract

The utility model discloses a feeding device of a plastic uptake forming machine, relates to the technical field of plastic uptake forming machines, and aims to provide the feeding device of the plastic uptake forming machine, which is convenient for conveying and positioning plastic sheets and comprises the plastic uptake forming machine and a feeding trolley, the plastic uptake forming machine comprises a rack and a conveying belt, a limiting mechanism is arranged on the rack, and the conveying belt is arranged on the conveying belt. The plastic sheet pushing device has the advantages that the pushing plate is pushed through the air cylinder to push the uppermost plastic sheets one by one, the supporting assemblies in the two side plates are matched with the bearing plate, the plastic sheets can be jacked and supported, and the plastic sheets can be pushed and conveyed through the pushing assembly. When the number of the plastic sheets is reduced, the plastic sheets automatically ascend and are limited above through a limiting plate, so that the uppermost plastic sheet is kept at the height suitable for conveying; the limiting mechanism on the rack automatically limits and locks the conveyed plastic sheets, so that the plastic sheets are prevented from shifting in the conveying process, and the situation that follow-up machining is affected due to inaccurate positioning is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum forming machines, and more specifically, to a feeding device of the vacuum forming machine. Background Art

[0002] The blister forming machine is also called the thermoplastic forming machine. It mainly uses the vacuum suction force generated by the vacuum pump to heat and soften the thermoplastic plastic sheets such as PVC, PET, PETG, APTT, PP, PE, PS, etc. into vacuum covers of various shapes through molds, or attach them to the surfaces of products of various shapes.

[0003] At present, when the traditional blister forming machine is in use, it is necessary to manually place the plastic sheets on the blister forming machine one by one, and it is impossible to realize automatic operation, and the efficiency is low. The Chinese patent application number CN202320370747.0 discloses a feeding device for a blister forming machine, including a working frame, a material storage vehicle and a conveyor belt. After the suction cup is driven by an electric lifting rod to fit the plastic sheet at the top of the plastic sheet pile, the suction pump is started to extract the gas inside the suction cup through the air pipe, so that the suction cup can absorb and fix the top plastic sheet. The electric lifting rod lifts the plastic sheet, and then the electric push rod is started to shorten and reset the rack, so that the connecting plate, the electric lifting rod, the suction cup and the plastic sheet are transported to the top of the conveyor belt. The suction cup releases the plastic sheet and falls onto the conveyor belt, which is then sent into the vacuum forming machine to complete the feeding. However, there is no limit on the transmission process of the plastic parts. When the suction cup absorbs the plastic sheet and transfers it down, it is easy to cause deviation, resulting in inaccurate positioning of the plastic sheet when it is placed in the vacuum forming machine, affecting subsequent processing operations. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a feeding device for a blister forming machine, which is convenient for feeding the processed plastic parts into the blister forming machine, reducing the workload of workers, and limiting the position of plastic sheets to ensure the accuracy of processing positioning.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A feeding device for a blister forming machine comprises a blister forming machine and a feeding trolley, the blister forming machine comprises a frame and a conveyor belt, a limiting mechanism is arranged on the frame, the feeding trolley is placed on one side of the conveyor belt, the feeding trolley comprises a bottom plate, a receiving plate, a fixed plate and two side plates, the two side plates and the fixed plate are respectively fixed on three sides of the bottom plate, and the fixed plate is arranged between the two side plates, the receiving plate is arranged above the bottom plate, a placement space for plastic sheets is formed between the two side plates, the fixed plate and the receiving plate, a limiting plate is fixed on the top of the two side plates, a supporting assembly is respectively arranged on the two side plates, a pushing assembly is arranged on the fixed plate, the limiting mechanism comprises two limiting blocks, a first gear, a second gear A gear, a first gear bar, a second gear bar, a motor, a rotating shaft, an installation box and two connecting rods. A support frame is provided on the frame, and the installation box is placed on the support frame. The first gear, the second gear, the first gear bar and the second gear bar are all placed in the installation box. The first gear and the second gear are both sleeved on the output shaft of the motor. The first gear and the first gear bar are meshed with each other, and the second gear and the second gear bar are meshed with each other. The two connecting rods are respectively fixedly connected to one end of the first gear bar and the second gear bar. A slot is provided at the bottom of the installation box for the two connecting rods to pass through. The two connecting rods are provided with connecting holes for the rotating shaft to be connected, and two limit blocks are respectively fixed to the bottom ends of the two connecting rods.

[0007] It is further configured that the two side panels are provided with sliding grooves, sliding ends are respectively provided on both sides of the receiving plate, the sliding ends on both sides are respectively placed in the sliding grooves of the two side panels and are slidably connected to the sliding grooves, the two groups of support components are respectively placed in the sliding grooves of the two side panels, the support components include a spring, a fixed rod, a sleeve and two sliding rods, the fixed rod is fixed to the bottom of the sliding end, the sleeve is fixed to the bottom end in the sliding groove, the spring is placed in the sleeve, the bottom end of the fixed rod extends into the sleeve and resists the spring, the two sliding rods are fixed in the sliding groove and placed on both sides of the sleeve, two through holes for the two sliding rods to pass through are provided on the sliding end, and the sliding end is slidably connected to the two sliding rods.

[0008] It is further configured that the pushing assembly includes a cylinder and a push plate, the cylinder is fixed on the fixed plate, the output end of the cylinder passes through the fixed plate and is fixedly connected to the push plate, and the push plate is placed in the placement space.

[0009] It is further configured that four universal wheels with brakes are fixed to the bottom of the feeding vehicle.

[0010] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: the feeding trolley is placed at the feed port of the conveyor belt of the blister forming machine, and the top plastic sheets can be pushed one by one by pushing the push plate through the cylinder. The support components in the two side panels cooperate with the receiving plate to support the plastic sheets. When the plastic sheets are reduced, they automatically rise and are limited at the top by the limit plate, so that the top plastic sheet is maintained at a height suitable for transmission; a limit mechanism is provided on the frame of the blister forming machine, which automatically limits and locks the plastic sheets transmitted to prevent them from shifting during the transmission process and avoid inaccurate positioning affecting subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0012] Figure 2 It is a cross-sectional schematic diagram of the installation box according to the embodiment of the utility model.

[0013] Figure 3 It is a cross-sectional schematic diagram of the support assembly according to an embodiment of the utility model.

[0014] Figure 4 It is a cross-sectional schematic diagram of the feeding vehicle according to an embodiment of the utility model.

[0015] Figure numerals: 1 blister forming machine, 2 frame, 3 conveyor belt, 4 feeding cart, 41 bottom plate, 42 receiving plate, 421 sliding end, 43 fixed plate, 44 side plate, 441 sliding groove, 45 limit plate, 5 support frame, 6 installation box, 61 slot, 7 limit block, 8 first gear, 9 second gear, 10 first gear bar, 11 second gear bar, 12 motor, 13 rotating shaft, 14 connecting rod, 15 spring, 16 fixed rod, 17 sleeve, 18 slide rod, 19 cylinder, 20 push plate, 21 universal wheel with brake. DETAILED DESCRIPTION

[0016] 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.

[0017] Reference Figures 1 to 4 The utility model is further described in detail.

[0018] A feeding device for a blister forming machine comprises a blister forming machine 1 and a feeding trolley 4. The blister forming machine 1 comprises a frame 2 and a conveyor belt 3. The feeding trolley 4 is placed on the feeding side of the conveyor belt 3. The feeding trolley 4 comprises a bottom plate 41, a receiving plate 42, a fixing plate 43 and two side plates 44. The bottom ends of the two side plates 44 are respectively fixed to three sides of the bottom plate 41. The two side plates 44 are parallel to each other. The fixing plate 43 is placed between the two side plates 44. The receiving plate 42 is placed on the bottom plate 41. A placement space for plastic sheets is formed between the two side plates 44, the fixing plate 43 and the receiving plate 42. A limiting plate 45 is fixed to the top of the two side plates 44. The bottom end of the limiting plate 45 is higher than the top of the conveyor belt 3 and leaves a height for the plastic sheet.

[0019] Sliding ends 421 are provided on both sides of the receiving plate 42, and sliding grooves 441 are provided on the two side plates 44. The sliding ends 421 on both sides of the receiving plate 42 are respectively placed in the sliding grooves 441 of the two side plates 44 and are slidably connected to the sliding grooves 441. Two groups of support components are respectively placed in the sliding grooves 421 of the two side plates 44. The support components include a spring 15, a fixing rod 16, a sleeve 17 and two sliding rods 18. The top end of the fixing rod 16 is fixed to the bottom of the sliding end 421, the sleeve 17 is fixed to the bottom end in the sliding groove 441, the spring 15 is placed in the sleeve 17, and the bottom end of the fixing rod 16 extends into the sleeve 17 and is connected to the spring 15. The two slide bars 18 are fixed in the sliding groove 441 and placed on both sides of the sleeve 17. Two through holes for the two slide bars 18 to pass through are provided on the sliding end 421. The sliding end 421 is slidably connected with the two slide bars 18. The plastic sheets are stacked on the receiving plate 42, and the sliding ends 421 at both ends of the receiving plate 42 are supported by the supporting components at both ends. Since the fixed rod 16 and the spring 15 connected to the sliding end 421 are against each other, when the weight of the plastic sheet changes, the compression degree of the spring 15 changes, so that the height of the sliding end 421 and the receiving plate 42 changes, so that the top plastic sheet remains against the limit plate 45.

[0020] A pushing assembly is provided on the fixed plate 43, and the pushing assembly includes a cylinder 19 and a push plate 20. The cylinder 19 is fixed on the fixed plate 43, and the output end of the cylinder 19 passes through the fixed plate 43 and is fixedly connected to the push plate 20. The push plate 20 is placed on one side of the placement space, and the push plate 20 corresponds to the topmost plastic sheet that is against the limit plate 45. When the output end of the cylinder 43 extends out to push the push plate 20, the topmost plastic sheet can be pushed.

[0021] The frame 2 is provided with a limiting mechanism, which includes two limiting blocks 7, a first gear 8, a second gear 9, a first gear bar 10, a second gear bar 11, a motor 12, a rotating shaft 13, an installation box 6 and two connecting rods 14. The frame 2 is provided with a supporting frame 5, and the installation box 6 is placed on the supporting frame 5. The first gear 8, the second gear 9, the first gear bar 10 and the second gear bar 11 are all placed in the installation box 6. The first gear 8 and the second gear 9 are both sleeved on the output shaft of the motor 12. The first gear 8 is meshed with the first gear bar 10, and the second gear 9 is meshed with the second gear bar 11. The two connecting rods 14 are fixedly connected to one end of the first gear bar 10 and the second gear bar 11, respectively. There is a connecting hole for the rotating shaft 13 to be rotatably connected, the rotating shaft 13 passes through the connecting holes on the two connecting rods 14, and the two connecting rods can rotate relative to each other around the rotating shaft 13. The two limit blocks 7 are respectively fixed to the bottom ends of the two connecting rods 14. The two limit blocks are located on the conveyor belt and are symmetrical. When the plastic sheet is sent between the two limit blocks 7, the output end of the motor 12 rotates to drive the first gear 8 and the second gear 9 to rotate, and the first gear bar 10 and the second gear bar 11 engaged with the first gear 8 and the second gear bar 9 rotate accordingly, and drive the two connecting rods 14 connected to the first gear bar 10 and the second gear bar 11 respectively to rotate around the rotating shaft 13, and the two limit blocks 7 are close to each other and the plastic sheet is confined between the two limit blocks 7.

[0022] Four universal wheels 21 with brakes are fixed to the bottom of the feeding trolley 4, so as to facilitate the movement of the feeding trolley 4 to replenish the plastic sheets.

[0023] The working principle of the embodiment of the utility model is as follows: the plastic sheets to be processed are stacked on the receiving plate 42 of the feeding trolley 4, and the feeding trolley 4 is placed on the feeding side of the conveyor belt 3, the uppermost plastic sheet is against the limit plate 45, the output end of the cylinder 19 extends to push the push plate 20 to push the uppermost plastic sheet toward the conveyor belt 3, and the plastic sheet is pushed between the two limit blocks 7, the output end of the motor 12 rotates to drive the first gear 8 and the second gear 9 to rotate, the first gear bar 10 and the second gear bar 11 rotate accordingly, and drive the two connected connecting rods 14 to rotate around the rotating shaft 12, and the two limit blocks 7 are against each other. The push plate 20 continues to push the plastic sheet forward, and both ends of the plastic sheet move forward along the limit blocks 7 and fall onto the conveyor belt 3. The output end of the motor 12 is reversed to separate and reset the two limit blocks 7 and send them into the vacuum forming machine 1 for processing; after the top plastic sheet is removed, the weight of the plastic sheet is reduced, and the springs 15 of the two groups of support components rebound to push the receiving plate 42 up, so that the remaining plastic sheet moves upward and contacts the upper limit plate 45, and the cylinder 12 pushes the top plastic sheet toward the conveyor belt 3 again, and repeats the above operation.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A feeding device for a blister forming machine, comprising a blister forming machine and a feeding vehicle, characterized in that: The vacuum forming machine comprises a frame and a conveyor belt, a limiting mechanism is arranged on the frame, a feeding trolley is placed on one side of the conveyor belt, the feeding trolley comprises a bottom plate, a receiving plate, a fixed plate and two side plates, the two side plates and the fixed plate are respectively fixed on three sides of the bottom plate, and the fixed plate is arranged between the two side plates, the receiving plate is arranged above the bottom plate, a placement space for plastic sheets is formed between the two side plates, the fixed plate and the receiving plate, a limiting plate is fixed on the top of the two side plates, a supporting assembly is respectively arranged on the two side plates, and a pushing assembly is arranged on the fixed plate, The limiting mechanism includes two limiting blocks, a first gear, a second gear, a first gear bar, a second gear bar, a motor, a rotating shaft, an installation box and two connecting rods. A support frame is provided on the frame, and the installation box is placed on the support frame. The first gear, the second gear, the first gear bar and the second gear bar are all placed in the installation box. The first gear and the second gear are both sleeved on the output shaft of the motor. The first gear and the first gear bar are meshed with each other, and the second gear and the second gear bar are meshed with each other. The two connecting rods are respectively fixedly connected to one end of the first gear bar and the second gear bar. A slot is provided at the bottom of the installation box for the two connecting rods to pass through. The two connecting rods are provided with connecting holes for the rotating shaft to be connected, and the two limiting blocks are respectively fixed to the bottom ends of the two connecting rods.

2. A feeding device for a blister forming machine according to claim 1, characterized in that: The two side panels are provided with sliding grooves, and the two sides of the receiving plate are provided with sliding ends, which are respectively placed in the sliding grooves of the two side panels and slidably connected with the sliding grooves, and the two sets of supporting components are respectively placed in the sliding grooves of the two side panels. The supporting assembly includes a spring, a fixed rod, a sleeve and two sliding rods. The fixed rod is fixed to the bottom of the sliding end, the sleeve is fixed to the bottom end in the sliding groove, the spring is placed in the sleeve, the bottom end of the fixed rod extends into the sleeve and resists against the spring, the two sliding rods are fixed in the sliding groove and placed on both sides of the sleeve, and two through holes for the two sliding rods to pass through are provided on the sliding end, and the sliding end is slidably connected to the two sliding rods.

3. A feeding device for a blister forming machine according to claim 1, characterized in that: The pushing assembly comprises a cylinder and a pushing plate. The cylinder is fixed on the fixing plate. The output end of the cylinder passes through the fixing plate and is fixedly connected to the pushing plate. The pushing plate is placed in the placement space.

4. A feeding device for a blister forming machine according to claim 1, characterized in that: Four universal wheels with brakes are fixed on the bottom of the feeding trolley.

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