Hot melting bonding machine for plastic toy balls

Abstract

The utility model discloses a hot melting bonding machine for plastic toy balls, which comprises a rack, a vertically upward lower telescopic air cylinder is arranged at the bottom of the rack, a lower mounting block is connected to the top of the lower telescopic air cylinder, a lower sliding groove is formed in the top of the lower mounting block, and a detachable lower die is slidably connected in the lower sliding groove. A plurality of hemispherical lower grooves are formed in the top of the lower mold; a vertically-downward upper telescopic air cylinder is arranged at the position, corresponding to the lower telescopic air cylinder, of the top of the rack, an upper mounting block is connected to the bottom of the upper telescopic air cylinder, an upper sliding groove is formed in the bottom of the upper mounting block, and a detachable upper mold is slidably connected into the upper sliding groove. Hemispherical upper grooves are formed in the positions, corresponding to the lower grooves, of the bottom of the upper mold, and through holes communicating with the top face of the upper mold are formed in the groove bottom of each upper groove; connecting holes communicating with the interior of the cavity are formed in the positions, corresponding to the through holes, of the bottom of the upper mounting block. The device not only can improve the processing efficiency, but also has the advantages of better convenience and better safety.

Description

Technical Field

[0001] This utility model relates to the field of plastic hot melt processing, and in particular to a hot melt bonding machine for plastic toy balls. Background Technology

[0002] With the continuous development of society, plastics, due to their different types and properties, are found in various fields; plastic products such as household appliances, toys, and building materials are widely used in daily life and production.

[0003] Plastic products are solids, but during manufacturing, they are molten liquids. Therefore, they can be melted by heating, flowed by applying pressure, and solidified by cooling to form various shapes. Consequently, plastic processing typically requires corresponding hot-melt equipment. Current plastic hot-melt equipment is similar to a type of hot-melt machine disclosed in ZL201920815958.4. This machine uses magnetic positioning blocks on the outside of the mold fixing plate, allowing these blocks to adhere to a metal base partition plate. By adjusting the position of the positioning blocks on the base partition plate, the position of the double-connected plastic shells of different sizes can be fixed in the mold. However, this type of hot-melt machine can only perform hot-melt operations on one or two double-connected plastic shells at a time. Furthermore, after hot-melt processing, it requires waiting for the plastic parts to cool and solidify before removing them, which is time-consuming and affects processing efficiency.

[0004] Therefore, existing plastic hot melt equipment suffers from low working efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a hot melt bonding machine for plastic toy balls. This invention has the advantage of high working efficiency.

[0006] The technical solution of this utility model: A hot melt bonding machine for plastic toy balls, comprising a frame, a vertically upward downward telescopic cylinder at the bottom of the frame, a lower mounting block fixedly connected to the top of the telescopic rod of the lower telescopic cylinder, and a downward sliding groove at the top of the lower mounting block; a detachable lower mold slidably connected within the downward sliding groove, the top of the lower mold having multiple hemispherical lower grooves; a vertically downward upward telescopic cylinder at the top of the frame corresponding to the lower telescopic cylinder, an upper mounting block fixedly connected to the bottom of the telescopic rod of the upper telescopic cylinder; a cavity within the upper mounting block, and a vacuum pump guide pipe connected to one side of the upper mounting block. The air duct is connected to the cavity; the bottom of the upper mounting block is provided with an upper sliding groove, and a detachable upper mold is slidably connected in the upper sliding groove, with the top surface of the upper mold in close contact with the bottom surface of the upper mounting block; the bottom of the upper mold is provided with a hemispherical upper groove corresponding to each lower groove, and the bottom of each upper groove is provided with a through hole connecting to the top surface of the upper mold; the bottom of the upper mounting block is provided with a connecting hole corresponding to each through hole, and the connecting hole connects to the cavity; a rotating shaft is rotatably connected between the top and bottom of the frame, and a rotary motor is connected to one end of the rotating shaft; a hot melt plate is fixedly connected to the rotating shaft, and the hot melt plate is located between the upper mold and the lower mold.

[0007] In the aforementioned hot melt bonding machine for plastic toy balls, the lower mold has fixed plates hinged to both the left and right sides, and the fixed plates have strip-shaped fixing holes; the upper mold has rotatably fixed buckles on both the left and right sides, and the fixed buckles have the same shape as the fixing holes.

[0008] In the aforementioned hot melt bonding machine for plastic toy balls, elastic blocks are provided at both ends of the lower sliding groove and both ends of the upper sliding groove; and notches that cooperate with the elastic blocks are provided at the four corners of the top of the upper mold and the top of the lower mold.

[0009] In the aforementioned hot melt bonding machine for plastic toy balls, handles are provided at both ends of the lower mold and the upper mold.

[0010] In the aforementioned hot melt bonding machine for plastic toy balls, the handle is wrapped with heat-insulating rubber on the outside.

[0011] Compared with the prior art, this utility model has multiple lower grooves on the top of the lower mold and upper grooves corresponding to each lower groove on the bottom of the upper mold, so that the upper and lower molds can perform hot-melt processing on multiple plastic parts at one time, which has a high processing efficiency. By sliding the upper and lower molds in the upper slide groove and the lower slide groove respectively, after the plastic parts are hot-melted and connected, the upper and lower molds can be slid out and placed aside for cooling. New upper and lower molds can then be slid into the upper slide groove and the lower slide groove respectively to perform hot-melt processing on new plastic parts. This prevents the cooling of previously processed plastic parts from delaying the hot-melt processing of subsequent plastic parts, thus improving processing efficiency.

[0012] Furthermore, this invention uses hinged fixing plates on the left and right sides of the lower mold, with fixing holes on the fixing plates. Fixing buckles of the same shape as the fixing holes are rotatably installed on the left and right sides of the upper mold. This allows the fixing plates on both sides of the lower mold to flip up, enabling the fixing buckles on the upper mold to pass through the fixing holes on the fixing plates. Rotating the fixing buckles prevents the fixing plates from detaching from the upper mold, achieving relative fixation between the upper and lower molds. This prevents misalignment when the upper and lower molds are simultaneously removed, thus avoiding damage to the plastic parts waiting to cool inside and affecting subsequent processing operations, thereby improving processing efficiency.

[0013] By setting elastic blocks at both ends of the upper slide groove and both ends of the lower slide groove, and by providing notches at the four corners of the top of the upper mold and the top of the lower mold to cooperate with the elastic blocks, when the upper mold and the lower mold are in the upper slide groove and the lower slide groove respectively, the blocks will be locked into the notches, preventing the upper mold and the lower mold from sliding and displacing during processing, thus affecting processing efficiency; when the upper mold and the lower mold are pulled forcefully, the notches will squeeze the elastic blocks, causing the elastic blocks to deform and compress, losing their blocking function, thus allowing the upper mold and the lower mold to slide out smoothly.

[0014] By providing handles at both ends of the lower and upper molds, the upper and lower molds can be easily pulled out by pulling the handles.

[0015] By wrapping the outside of the handle with heat-insulating rubber, the heat from the hot melt plate will not burn the user when picking up or placing the upper and lower molds, thus providing good safety.

[0016] Therefore, this utility model not only improves processing efficiency, but also has the advantages of good convenience and good safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of a portion of the structure of this utility model;

[0019] Figure 3 yes Figure 2 Top view at point A;

[0020] Figure 4 This is a cross-sectional view of the upper mounting block in this utility model;

[0021] Figure 5 This is a bottom view of the upper mold in this utility model;

[0022] Figure 6 This is a top view of the lower mold in this utility model.

[0023] The markings in the attached diagram are as follows: 1-Frame, 201-Lower telescopic cylinder, 202-Lower mounting block, 203-Slide groove, 204-Lower mold, 205-Lower groove, 301-Upper telescopic cylinder, 302-Upper mounting block, 303-Cavity, 304-Air guide pipe, 305-Upper slide groove, 306-Upper mold, 307-Upper groove, 308-Through hole, 309-Connecting hole, 4-Rotating shaft, 5-Rotating motor, 6-Hot melt plate, 7-Fixing plate, 8-Fixing hole, 9-Fixing buckle, 10-Elastic locking block, 11-Notch, 12-Handle. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0025] Example. A hot melt bonding machine for plastic toy balls, configured as follows: Figures 1 to 6 As shown, the device includes a frame 1. A vertically upward-pointing lower telescopic cylinder 201 is installed at the bottom of the frame 1. A lower mounting block 202 is fixedly connected to the top of the telescopic rod of the lower telescopic cylinder 201. A sliding groove 203 is provided on the top of the lower mounting block 202. A detachable lower mold 204 is slidably connected within the sliding groove 203. The top of the lower mold 204 has multiple hemispherical lower grooves 205. A vertically downward-pointing upper telescopic cylinder 301 is installed at the top of the frame 1 corresponding to the lower telescopic cylinder 201. An upper mounting block 302 is fixedly connected to the bottom of the telescopic rod of the upper telescopic cylinder 301. A cavity 303 is provided within the upper mounting block 302. A vacuum pump's air guide pipe 304 is connected to one side of the upper mounting block 302, and the air guide pipe 304 connects to the cavity 303. The bottom of the mounting block 302 is provided with an upper sliding groove 305, and a detachable upper mold 306 is slidably connected in the upper sliding groove 305. The top surface of the upper mold 306 is in close contact with the bottom surface of the upper mounting block 302. The bottom of the upper mold 306 is provided with a hemispherical upper groove 307 corresponding to each lower groove 205. The bottom of each upper groove 307 is provided with a through hole 308 connecting to the top surface of the upper mold 306. The bottom of the upper mounting block 302 is provided with a connecting hole 309 corresponding to each through hole 308. The connecting hole 309 connects to the cavity 303. A rotating shaft 4 is rotatably connected between the top and bottom of the frame 1. One end of the rotating shaft 4 is connected to a rotary motor 5. A hot melt plate 6 is fixedly connected to the rotating shaft 4. The hot melt plate 6 is located between the upper mold 306 and the lower mold 204.

[0026] The lower mold 204 is hinged with fixing plates 7 on both the left and right sides, and the fixing plates 7 have strip-shaped fixing holes 8; the upper mold 306 is rotatably provided with fixing buckles 9 on both the left and right sides, and the fixing buckles 9 have the same shape as the fixing holes 8.

[0027] Both ends of the sliding groove 203 and both ends of the upper sliding groove 305 are provided with elastic locking blocks 10; the top of the upper mold 306 and the top of the lower mold 204 are provided with notches 11 that cooperate with the elastic locking blocks 10 at the four corners.

[0028] Handles 12 are provided at both ends of the lower mold 204 and the upper mold 306.

[0029] The handle 12 is wrapped with heat-insulating rubber on the outside.

[0030] Working principle: Before hot melt processing, the vacuum pump is turned on to extract the air from the cavity 303 through the air guide pipe 304. Then, the plastic part is placed into the lower groove 205 and the upper groove 307. At this time, since each upper groove 307 has a through hole 308 at the bottom, and the through hole 308 corresponds one-to-one with the connecting hole 309 that connects to the cavity 303, and the bottom of the upper mounting block 302 is in close contact with the top surface of the upper mold 306, the air extracted from the cavity 303 will generate suction on the bottom of the upper groove 307 due to the air pressure difference through the connecting hole 309 and the through hole 308, adsorbing the plastic part into the upper groove 307. Subsequently, the drive rotary motor 5 drives the rotating shaft 4 to rotate, moving the hot melt plate 6 to the upper mold 307. Between the upper mold 306 and the lower mold 204; then operate the upper telescopic cylinder 301 and the lower telescopic cylinder 201, respectively driving the upper mounting block 302 and the lower mounting block 202 to move closer to the hot melt plate 6, so that the plastic parts are attached to the hot melt plate 6; after a period of time, after the plastic parts are hot melted, drive the rotary motor 5 again, so that the rotating shaft 4 rotates and drives the hot melt plate 6 away from between the upper mold 306 and the lower mold 204; then, continue to operate the upper telescopic cylinder 301 and the lower telescopic cylinder 201, so that the lower mold 306 and the lower mold 204 are closer, so that the upper and lower plastic parts are pressed tightly together; then, turn off the vacuum pump and stop the evacuation of the cavity 303; then flip up the fixing plates 7 on both sides of the lower mold 204, so that the upper mold The fixing buckles 9 on both sides of mold 306 pass through the fixing holes 8 on the fixing plate 7. Rotating the fixing buckles 9 locks the fixing plate 7 in place, thus fixing the upper mold 306 and lower mold 204 together. Since the upper mold 306 and lower mold 204 are fixedly connected, pulling the handle 12 will pull the upper mold 306 out of the upper slide groove 305 while simultaneously pulling the lower mold 204 out of the lower slide groove 203. This prevents misalignment of the upper mold 306 and lower mold 204 during extraction, which could lead to failure of the internal plastic parts' heat fusion connection and affect processing efficiency. Afterwards, the fixedly connected upper mold 306 and lower mold 204 are placed aside on the frame 1. After cooling, operate the upper telescopic cylinder 301 and the lower telescopic cylinder 201 to reset the upper mounting block (302) and the lower mounting block (202). Then, slide the new upper mold 306 into the upper slide groove 305 and ensure that the four elastic locking blocks 10 are respectively engaged in the four notches 11 to stabilize the upper mold 306 in the upper slide groove 305. Similarly, slide the new lower mold 204 into the lower slide groove 203 and ensure that the four elastic locking blocks 10 are respectively engaged in the four notches 11 to stabilize the lower mold 204 in the lower slide groove 203. Subsequently, turn on the vacuum pump to extract the air in the cavity 303 and repeat the above operation to eliminate the cooling waiting time of the plastic parts and improve the efficiency of hot melt processing.

Claims

1. A hot melt bonding machine for plastic toy balls, comprising a frame (1), characterized in that: The bottom of the frame (1) is provided with a vertically upward downward telescopic cylinder (201). The top of the telescopic rod of the downward telescopic cylinder (201) is fixedly connected to a lower mounting block (202). The top of the lower mounting block (202) is provided with a downward sliding groove (203). A detachable lower mold (204) is slidably connected in the downward sliding groove (203). The top of the lower mold (204) is provided with multiple hemispherical downward grooves (205). The top of the frame (1) is provided with a vertically downward upward telescopic cylinder (301) corresponding to the lower telescopic cylinder (201). The bottom of the telescopic rod of the upper telescopic cylinder (301) is fixedly connected to an upper mounting block (302). A cavity (303) is provided in the upper mounting block (302). A vacuum pump guide pipe (304) is connected to one side of the upper mounting block (302). The guide pipe (304) is connected to the cavity (303). The bottom of the upper mounting block (302) is... The upper part is provided with an upper sliding groove (305), and a detachable upper mold (306) is slidably connected in the upper sliding groove (305). The top surface of the upper mold (306) is in close contact with the bottom surface of the upper mounting block (302). The bottom of the upper mold (306) is provided with a hemispherical upper groove (307) corresponding to each lower groove (205), and the bottom of each upper groove (307) is provided with a through hole (308) connecting to the top surface of the upper mold (306). The bottom of the mounting block (302) is provided with a connecting hole (309) corresponding to each through hole (308), and the connecting hole (309) is connected to the cavity (303); the top and bottom of the frame (1) are rotatably connected to a rotating shaft (4), and one end of the rotating shaft (4) is connected to a rotary motor (5); a hot melt plate (6) is fixedly connected to the rotating shaft (4), and the hot melt plate (6) is located between the upper mold (306) and the lower mold (204).

2. The hot melt bonding machine for plastic toy balls according to claim 1, characterized in that: The lower mold (204) is hinged with fixing plates (7) on both the left and right sides, and the fixing plates (7) have strip-shaped fixing holes (8); the upper mold (306) is rotatably provided with fixing buckles (9) on both the left and right sides, and the fixing buckles (9) have the same shape as the fixing holes (8).

3. The hot melt bonding machine for plastic toy balls according to claim 1, characterized in that: Both ends of the sliding groove (203) and both ends of the upper sliding groove (305) are provided with elastic blocks (10); the top of the upper mold (306) and the four corners of the top of the lower mold (204) are provided with notches (11) that cooperate with the elastic blocks (10).

4. The hot melt bonding machine for plastic toy balls according to claim 1, characterized in that: Handles (12) are provided at both ends of the lower mold (204) and the upper mold (306).

5. A hot melt bonding machine for plastic toy balls according to claim 4, characterized in that: The handle (12) is wrapped with heat-insulating rubber on the outside.

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