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CN-121697228-B - Automatic connecting equipment for multi-layer plastic plate

CN121697228BCN 121697228 BCN121697228 BCN 121697228BCN-121697228-B

Abstract

The invention discloses automatic connecting equipment for a multilayer plastic plate, which comprises a conveying device and a pressing device, wherein the conveying device comprises a feeding unit, a buffering unit and a pushing unit, the pressing device comprises a bearing seat, a pressing rod and a driving unit for controlling the distance between the bearing seat and the pressing rod, the feeding unit is used for feeding a connecting piece into the buffering unit, a first heating component for heating the connecting piece is arranged in the buffering unit, the pushing unit is used for pushing the heated connecting piece between the bearing seat and the pressing rod, the bearing seat is used for bearing the multilayer plastic plate, the pressing rod is used for pressing the heated connecting piece into the multilayer plastic plate under the driving of the driving unit, and the depth of the connecting piece penetrating into the multilayer plastic plate is smaller than the total thickness of the multilayer plastic plate. The bearing seat is provided with a bearing plane corresponding to the pressing-in position of the connecting piece and is used for contacting with the bottom surface of the multi-layer plastic plate and keeping the flatness of the bottom surface.

Inventors

  • XU HAIFENG
  • LIU LIFENG
  • WANG JIAQIN

Assignees

  • 苏州托克斯冲压设备有限公司

Dates

Publication Date
20260508
Application Date
20260210

Claims (12)

  1. 1. The automatic connecting device for the multilayer plastic plate is characterized by comprising a conveying device and a pressing device, wherein the conveying device comprises a feeding unit, a buffering unit and a pushing unit, the pressing device comprises a bearing seat, a pressing rod and a driving unit for controlling the distance between the bearing seat and the pressing rod, the feeding unit is used for feeding a connecting piece into the buffering unit, a first heating component for heating the connecting piece is arranged in the buffering unit, the pushing unit is used for pushing the heated connecting piece between the bearing seat and the pressing rod, the bearing seat is used for bearing the multilayer plastic plate, the pressing rod is used for pressing the heated connecting piece into the multilayer plastic plate under the driving of the driving unit, and the depth of the connecting piece penetrating into the multilayer plastic plate is smaller than the total thickness of the multilayer plastic plate; the buffer unit comprises a bottom plate and a cover plate, wherein the bottom plate and the cover plate are provided with first channels for moving the connecting pieces, and the first heating components are arranged on the bottom plate and/or the cover plate; the buffer storage unit is internally provided with a compression assembly, the cover plate is provided with a containing groove, the compression assembly comprises a first elastic piece and a pressing block, the pressing block is used for being in contact with the top of the connecting piece, one end of the first elastic piece acts on the pressing block, and the other end of the first elastic piece acts on the top of the containing groove.
  2. 2. The automatic connecting device according to claim 1, wherein the connecting member comprises a top portion, a middle portion and a bottom portion which are sequentially arranged, the top portion is larger than the bottom portion in size, the bottom surface of the bottom portion is curved, and the connecting member is vertically arranged in the first channel.
  3. 3. The automatic connecting device according to claim 1, wherein a detecting assembly is arranged in the buffer unit, the detecting assembly comprises a detecting rod, a rotating shaft, a second elastic piece and a sensor, the rotating shaft is arranged on the cover plate, the detecting rod rotates around the rotating shaft, the second elastic piece and the sensor are respectively arranged corresponding to two ends of the detecting rod, and the second elastic piece is used for driving the corresponding end of the detecting rod to rotate downwards and press the connecting piece.
  4. 4. The automatic connection device according to claim 3, wherein the pushing unit is arranged corresponding to the detection component, the pushing unit comprises a push rod and a pushing driving piece for driving the push rod to act, the bottom plate and the cover plate are provided with second channels for the push rod to move, included angles of the first channels and the second channels are set, and the push rod is located below the detection rod.
  5. 5. The automatic connecting device according to claim 1, wherein the base plate is provided with a clamping assembly, the pushing unit is used for pushing the connecting piece to the clamping assembly from the buffer unit, the clamping assembly comprises a pin shaft, a clamping block and a third elastic piece, the pin shaft is fixed on the base plate, the clamping block is rotatably arranged on the pin shaft, the third elastic piece is used for enabling the clamping block to rotate upwards, and a clamping groove for accommodating the connecting piece is formed between the two clamping blocks.
  6. 6. The automatic connection device of claim 1, wherein the feeding unit comprises a feeding pipe, a transition pipe and a blanking assembly arranged between the feeding pipe and the transition pipe, the transition pipe is arranged close to the buffer unit, and the blanking assembly is used for switching a connecting piece in the feeding pipe into the transition pipe.
  7. 7. The automatic connecting device according to claim 6, wherein the blanking component comprises a cutting plate, a first switching driver for driving the cutting plate to move, a pressing plate and a second switching driver for driving the pressing plate to move, the included angle between the cutting plate and the pressing plate is set, a switching hole penetrating through the thickness of the cutting plate and matched with the shape of the connecting piece is formed in the cutting plate, and the shape of the pressing plate is matched with the shape of the switching hole.
  8. 8. The automatic connecting apparatus of claim 7, wherein the feed tube has a first tube therein for receiving a connector, the transition tube has a second tube therein for receiving a connector, the first switching actuator drives the switching hole in the cutting plate to reciprocate between the first tube and the second tube, and the platen is disposed in correspondence with the second tube.
  9. 9. The automated connecting apparatus of claim 1, wherein the pressing device comprises a second heating assembly for heating the connector, the second heating assembly disposed within the plunger.
  10. 10. The automatic connecting device according to claim 9, wherein the second heating component comprises a heating rod, the heating rod is arranged in the pressing rod, the pressing rod comprises an upper rod portion and a lower rod portion, the bottom end of the upper rod portion is connected with the top end of the lower rod portion, the inner diameter of the upper rod portion is larger than the outer diameter of the heating rod, a first air flow channel is formed between the inner wall of the upper rod portion and the outer wall of the heating rod, an adsorption hole is formed in the bottom end of the lower rod portion, a second air flow channel is formed in the inner wall of the lower rod portion, the second air flow channel is communicated with the adsorption hole and the first air flow channel, and the first air flow channel is connected with the air pressure control mechanism.
  11. 11. The automatic connection device according to claim 1, wherein the pressing means comprises a first cooling assembly for cooling the multilayer plastic sheet after the connection piece has penetrated into the multilayer plastic sheet, and/or a second cooling assembly for cooling the multilayer plastic sheet carried by the carrying base is provided in the carrying base.
  12. 12. The automatic connecting device according to claim 11, wherein the first cooling assembly comprises a cooling head and a cooling rod connected with the cooling head, the cooling rod is arranged in parallel with the pressure rod, a first air blowing channel for blowing air is arranged in the cooling rod, a second air blowing channel and a pressure hole for the pressure rod to penetrate are formed in the cooling head, and the second air blowing channel is communicated with the pressure hole and the first air blowing channel.

Description

Automatic connecting equipment for multi-layer plastic plate Technical Field The invention belongs to the technical field of automatic press fitting, and particularly relates to automatic press fitting connection equipment for a multilayer plastic plate capable of keeping the surface smooth. Background Along with the development of material technology and the upgrading of light-weight requirements, the mixed material connection is widely applied to various fields such as automobiles, household appliances and the like. Particularly in the manufacture of vehicle bodies, the combination of mixed materials such as steel aluminum, steel magnesium and the like is widely popularized, and the application of reinforced engineering plastics is gradually expanding due to the requirements of manufacturing cost control and further light weight. Because the vehicle body connection not only requires high strength, but also has strict standards on the appearance of the vehicle body connection, how to realize reliable connection between plastic plates and simultaneously meet the requirements of the appearance, automatic mass production and high efficiency becomes a technical problem to be solved urgently. At present, the connection between plastic plates mainly comprises the following technical means: 1) The nondestructive fixed connection requires special design of the workpiece, and has high manufacturing cost and design cost; 2) The bonding technology has high requirements on glue and a gluing process, and the flatness can be influenced by the existence of gaps in the glue layer; 3) Welding technology, such as laser welding, has high energy consumption, large equipment investment and incapability of accurately controlling the surface flatness. In order to solve the above-described problems, a conventional patent CN105188986a discloses a joining device, a joining structure, and a method for joining resin members by heating a self-piercing rivet by high-frequency electromagnetic induction heating, and when the self-piercing rivet is driven in, heating and melting a part of the resin members by the heated self-piercing rivet, and joining the resin members by fusion of the self-piercing rivet. Since the self-piercing rivet is driven in a state where the resin member is melted, the resin member can be joined with high strength without causing cracking. However, since the solution of this patent requires heating and melting a part of the resin member, it is obvious that the deformation of the resin member is caused, and the solution is not suitable for the present scenario where the connection is required to have high aesthetic properties. Meanwhile, the rivet temperature is difficult to directly control by using a high-frequency induction heating process, so that the problem of overhigh temperature is very easy to occur, and the material is burnt and excessively deformed. Therefore, in the prior art, the connection area of the plastic plates is basically heated for connection between the plastic plates, which leads to deformation of the plastic plates, and the surface flatness after connection is poor. The foregoing background is only for the purpose of providing an understanding of the principles and concepts of the invention and is not necessarily in the prior art to the invention and is not intended to be used as an admission that the background of the invention is prior art to the extent that it has been disclosed in advance of the filing date of the present application. Disclosure of Invention In view of this, in order to overcome the defects of the prior art, an object of the present invention is to provide an automatic connection device for multi-layer plastic plates, which realizes automatic heating and press-fitting of connection pieces of the multi-layer plastic plates, and keeps the surface of the connected plastic plates flat. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides an automatic junction equipment of multilayer plastic plate, includes conveyor and press-in device, conveyor includes feeding unit, buffer memory unit and push unit, press-in device includes bears seat, depression bar and is used for control bear the drive unit of distance between seat and the depression bar, feeding unit is arranged in sending the connecting piece into buffer memory unit, be provided with in the buffer memory unit and be used for carrying out the first heating element of heating to the connecting piece, push unit is used for with the connecting piece propelling movement after heating to bear between seat and the depression bar, bear the seat and be used for bearing the multilayer plastic plate, the depression bar is used for pressing in the multilayer plastic plate with the connecting piece after heating under the drive of drive unit in the depth that the connecting piece in deep multilayer plastic plate is less than the total thickness of multilaye