Search

CN-224224555-U - Ultrasonic welding device for fusion welding of plastic toys

CN224224555UCN 224224555 UCN224224555 UCN 224224555UCN-224224555-U

Abstract

The utility model discloses an ultrasonic welding device for welding plastic toys, which belongs to the technical field of plastic toy welding devices and comprises a base body, an elastic supporting seat, an ultrasonic welding head, a lower die, an upper die and an opening and closing driving mechanism, wherein the elastic supporting seat is arranged in the base body, the ultrasonic welding head is arranged in the elastic supporting seat, the lower die is arranged on the elastic supporting seat, the upper die is relatively movably arranged on the lower die, the opening and closing driving mechanism is arranged in the base body, and the opening and closing driving mechanism is in driving connection with the upper die. The utility model relates to an ultrasonic welding device for welding plastic toys, which solves the technical problem that a die is easily damaged due to collision of a piece when welding the plastic toys.

Inventors

  • LIU SONG
  • SHEN YI
  • Gao Gengsen

Assignees

  • 惠州市鼎冠塑胶玩具有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (9)

  1. 1. The ultrasonic welding device for welding the plastic toys is characterized by comprising a base body (1), an elastic supporting seat (2), an ultrasonic welding head (3), a lower die (4), an upper die (5) and an opening and closing driving mechanism (6), wherein the elastic supporting seat (2) is arranged in the base body (1), the ultrasonic welding head (3) is arranged in the elastic supporting seat (2), the lower die (4) is arranged on the elastic supporting seat (2), the upper die (5) is relatively movably arranged on the lower die (4), the opening and closing driving mechanism (6) is arranged in the base body (1), and the opening and closing driving mechanism (6) is in driving connection with the upper die (5).
  2. 2. The ultrasonic welding device for fusion welding of plastic toys according to claim 1, wherein the elastic supporting seat (2) comprises a bottom supporting seat (201), a guide pillar connecting seat (202), a supporting seat frame (203), a guide pillar (204), a spring (205) and a sliding clamping block (206).
  3. 3. The ultrasonic welding device for fusion welding of plastic toys according to claim 2, wherein the bottom support (201) is disposed at a lower portion of the base body (1), the guide post connecting seat (202) is disposed on the bottom support (201), the support seat (203) is disposed on the guide post connecting seat (202), the guide posts (204) are respectively connected with the guide post connecting seat (202) and the support seat (203), the springs (205) are connected between the guide post connecting seat (202) and the support seat (203), and the springs (205) are sleeved on the guide posts (204).
  4. 4. The ultrasonic welding device for fusion welding of plastic toys according to claim 3, wherein the ultrasonic welding head (3) is disposed in the supporting seat frame (203), the lower die (4) is disposed on the supporting seat frame (203), the sliding fixture block (206) is disposed on one side surface of the supporting seat frame (203), and the sliding fixture block (206) is movably connected with the seat body (1).
  5. 5. The ultrasonic welding device for fusion welding of plastic toys according to claim 4, wherein the base body (1) comprises a base body (101), fixing legs (102) and a chute (103).
  6. 6. The ultrasonic welding device for fusion welding of plastic toys according to claim 5, wherein the bottom of the base body (101) is provided with the fixing support leg (102), two sliding grooves (103) are oppositely arranged in the base body (101), and two ends of the sliding clamping block (206) are respectively and correspondingly movably connected in one sliding groove (103).
  7. 7. The ultrasonic welding device for fusion welding of plastic toys according to claim 6, wherein the opening and closing driving mechanism (6) comprises an opening and closing driving cylinder (601), an opening and closing driving telescopic piston rod (602), an opening and closing guide sliding block (603) and an opening and closing guide rail (604).
  8. 8. The ultrasonic welding device for fusion welding of plastic toys according to claim 7, wherein the opening and closing driving cylinder (601) is arranged at the top of the base body (1), the opening and closing driving cylinder (601) is in driving connection with the opening and closing driving telescopic piston rod (602), and one end part of the opening and closing driving telescopic piston rod (602) is connected with the upper die (5).
  9. 9. The ultrasonic welding device for fusion welding of plastic toys according to claim 8, wherein the opening and closing guide sliding block (603) is arranged on one side surface of the upper die (5), the opening and closing guide lead rail (604) is arranged in the base body (1), and the opening and closing guide sliding block (603) is movably connected to the opening and closing guide lead rail (604).

Description

Ultrasonic welding device for fusion welding of plastic toys Technical Field The utility model relates to the technical field of plastic toy welding devices, in particular to an ultrasonic welding device for welding plastic toys. Background The plastic toy is a plastic toy product which is mainly made up by using high-molecular synthetic resin, such as polyvinyl chloride and polyethylene, etc. as main raw material and adding auxiliary materials of plasticizer and stabilizing agent, etc. its basic high-molecular material possesses plasticity and fluidity under the specific temp. and pressure, and can retain its fixed form after being formed by using plastic mould. The ultrasonic welding process is special processing technology for realizing thermoplastic material connection by using high-frequency mechanical vibration, and has the key technical characteristics and application points that 1. An energy conversion mechanism ‌ converts power frequency current into 15-50kHz high-frequency electric energy through an ultrasonic generator, converts the electric energy into mechanical vibration through a transducer, controls the amplitude within the range of 1-100 mu m, and transmits the mechanical vibration to a workpiece contact surface by using a welding head to generate friction heat energy. 2. The welding process of the welding stage layering ‌ can be divided into four key stages, namely energy guiding rib tip melting, melt spreading contact, steady state melting, pressure maintaining cooling solidification, and permanent connection through a molecular bond after vibration is stopped. Based on the above, chinese patent document with publication No. CN113510358B discloses an ultrasonic welding device, which comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die and an ultrasonic welding head, the ultrasonic welding head is arranged on one side of the upper die facing the lower die assembly, the lower die assembly comprises a lower die plate, a limiting plate for positioning a product is arranged on the lower die plate, and a pre-supporting piece for supporting the upper die is arranged on the lower die plate. This kind of ultrasonic welding device restricts the module through the support piece in advance, can reach the effect of module on the location, and the operator of being convenient for aligns ultrasonic bonding head and product, has reduced the condition emergence that has the error between last module and the lower module to improve welded precision, be favorable to improving the quality of product. However, the ultrasonic welding apparatus disclosed above has a technical problem in that the collision is liable to occur to damage the die. In the production process of plastic toy products, generally speaking, the process flow for connecting the components of the plastic toy by utilizing an ultrasonic welding process is that the toy components to be welded are stacked in a special fixture, so that the accurate alignment of contact surfaces is ensured, especially the matching precision of energy guide ribs and corresponding grooves is required to be controlled, pre-compression force of 0.2-0.6MPa is applied, gaps of the components are eliminated, an energy transmission path is established, the pressure value is adjusted according to the elastic modulus of the materials, a welding head is vertically vibrated at the frequency of 20/40kHz for 0.1-1.0 seconds, the interface temperature can reach 80-120% of the melting point of the materials, near-field welding (the distance is less than 6.4 mm) is adopted for crystalline plastics, finally, the pressure is kept for 0.5-3 seconds after vibration is stopped, redundant molten materials are extruded, molecular chain recombination is completed, and a permanent welding seam with the strength reaching 70-90% of a parent metal is formed. In the above-mentioned ultrasonic welding process, the two mold parts that are in relative motion usually collide and abut rigidly to complete the mold clamping operation during the mold clamping operation, so that the ultrasonic mold is likely to be damaged by the collision of the mold parts during the welding process of the plastic toy. Disclosure of utility model Accordingly, it is necessary to provide an ultrasonic welding device for welding plastic toys, which aims at solving the technical problem that the mold is easy to collide with the parts during welding of the plastic toys. The ultrasonic welding device for welding the plastic toys comprises a base body, an elastic supporting seat, an ultrasonic welding head, a lower die, an upper die and an opening and closing driving mechanism, wherein the elastic supporting seat is arranged in the base body, the ultrasonic welding head is arranged in the elastic supporting seat, the lower die is arranged on the elastic supporting seat, the upper die is relatively movably arranged on the lower die, the opening and closing driving mecha