Disposable tableware injection molding demoulding mechanism and demoulding method

Abstract

The present invention provides a disposable tableware injection molding demolding mechanism and a demolding method, which relate to the field of tableware production equipment. The disposable tableware injection molding demolding mechanism comprises two bases, each of which has a trapezoidal cross-section, with the oblique sides of the two base cross-sections facing downward and close to each other. The two bases are hinged together, and two conical blocks are provided between the two bases, with the two conical blocks being arranged symmetrically in front and back. The disposable tableware injection molding demolding mechanism and demolding method are configured by establishing a mold box composed of a base and conical blocks, assembling the mold box and a mold sleeve together, and injecting material into the interior to produce tableware. Since the two bases are hinged to each other, when the conical block moves away from the base, the two bases are driven toward each other by the cooperation of a sliding sleeve, a resistance block, a motor, and a steel wire, so that the surface of the tableware and the inner wall of the mold groove are moved away from each other, thereby facilitating demolding and accelerating demolding efficiency. The demolding is performed in place of a traditional ejector pin, which would cause damage to the molded part.

Description

Technical Field

[0001] The present invention relates to the technical field of tableware manufacturing equipment, in particular to an injection molding demoulding mechanism and a demoulding method for disposable tableware. Background Art

[0002] With the development of the economy and the progress of society, people's pace of life is accelerating. In order to improve the convenience of daily life, disposable tableware has come into being. Traditional disposable tableware mostly uses polystyrene as raw material. Although it brings convenience to people's lives, it is difficult to degrade. The disposal of a large number of disposable tableware brings a heavy burden to the natural environment.

[0003] As people pay more attention to the environment, the market has also introduced degradable materials to make disposable tableware. The raw materials of existing degradable disposable tableware are mostly polylactic acid (PLA), starch, plant fiber or PBAT.

[0004] Injection molding machines, also known as injection molding machines or injection machines, are essential for tableware production. They are the primary molding equipment used to create various shapes of plastic products from thermoplastics or thermosetting plastics using plastic molding molds. The injection molding machine heats the plastic and applies high pressure to the molten plastic, causing it to eject and fill the mold cavity. However, existing injection molding machines used to produce polymer-based disposable biodegradable tableware have several shortcomings. For one thing, ejection is often performed using ejector pins, which can easily cause damage to the molded parts and compromise product quality. Furthermore, ejector pins are inefficient for demolding. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the present invention provides a disposable tableware injection molding demolding mechanism and demolding method, which solves the problem in the above-mentioned background technology that the injection molding machine of disposable biodegradable tableware often uses a ejector pin for demolding during the demolding process, which easily causes the molded parts to be punctured and damaged, and cannot guarantee product quality.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a disposable tableware injection molding and demolding mechanism, comprising two bases, the cross-section of the base is trapezoidal, the oblique sides of the cross-sections of the two bases are downward and close to each other, the two bases are hinged together, two conical blocks are provided between the two bases, the two conical blocks are arranged symmetrically front to back, the bases and the conical blocks form a complete mold box, a mold groove is provided in the mold box, and a mold sleeve is provided above the mold box.

[0009] The lower end of the mold sleeve extends into the mold groove, and the inner wall of the mold groove is provided with multiple injection grooves, which are symmetrically arranged on the front and back sides. The inner wall of the mold groove is also provided with two exhaust grooves, which are symmetrically arranged on the left and right sides. An injector is connected to the side of the base, and the injector injects the molten raw material into the injection groove.

[0010] The bottom of the conical block is connected to a large cylinder, the edge of the mold sleeve is provided with a cutting groove, the lower end edge of the inner wall of the cutting groove is provided with a thin blade, and the mold sleeve can rotate around the center of the circle.

[0011] The injection groove and the exhaust groove are semicircular holes with a diameter of cm. The cutting groove is also a semicircular hole with a diameter of cm. The cutting groove can form a through hole with the injection groove, so that the injection end of the injector can extend into the through hole. When the mold sleeve rotates around the center of the circle, the cutting groove carries the thin blade to rotate and cut off the edge material in the injection groove and the exhaust groove.

[0012] Preferably, the base is penetrated by a condenser, an electronic valve is provided in the condenser, a groove is provided in the base near the exhaust groove, the groove is connected to the exhaust groove, a vertical sliding rod is connected in the groove, the sliding rod is slidably fitted with a paddle, one end of the paddle can be extended into the exhaust groove, a thin spring is provided on the sliding rod body and above the paddle, a push switch is provided on the top of the inner wall of the groove, a single-chip microcomputer and a battery are provided in the groove, and the single-chip microcomputer, battery, push switch and electronic valve are electrically connected.

[0013] Preferably, four columns are provided at equal angles around the center of the circle on the top of the mold sleeve, a gear ring is provided above the mold sleeve, an upper end of the gear ring is connected to an oblique rod through the gear ring, the gear ring is connected to the column rod body, a rotating rod is provided above the gear ring, one end of the rotating rod is connected to an electric push rod, the upper ends of the four oblique rods are merged together and pivotally connected to the lower end of the electric push rod, a small cylinder is connected to the side of the base on the right, the movable end of the small cylinder is connected to a motor, the motor drive shaft is connected to a gear, and the gear is meshed with the gear ring.

[0014] Preferably, a sleeve is provided between the two bases, a motor is provided in the sleeve, substrates are provided on the left and right sides of the motor, a resistance block is provided on the side of the substrate away from the motor, the resistance block and the sleeve slide together, one end of the resistance block extends outside the sleeve and contacts the base, a thick spring is connected between the resistance block and the substrate, the motor is connected to a steel wire, and the steel wire passes through the substrate and is connected to the resistance block.

[0015] Preferably, the injector includes a hinge block, an injection module and an injection tube, the lower end of the hinge block is connected to the outside of the base, the upper end of the hinge block is hinged to the injection module, and the injection tube is fixedly mounted on the injection module, and the injection tube can extend into the injection slot.

[0016] Preferably, the end of the rotating rod away from the electric push rod one is connected to the electric push rod two, and the lower end of the electric push rod two is fixedly installed with an adsorption module, which is used to adsorb the finished tableware.

[0017] Preferably, the upper edge of the mold groove is provided with a plurality of slopes, and the slopes correspond to the injection grooves one by one.

[0018] Preferably, a T-shaped rod is further included, wherein the transverse portion of the T-shaped rod is connected to the large cylinder, and the longitudinal portion of the T-shaped rod is connected to the sleeve.

[0019] A method for injection molding and demoulding of disposable tableware, characterized by:

[0020] Step 1: Start the large cylinder to push the conical block between the two bases so that the two bases are arranged horizontally. The base and the conical block form a mold box, and the mold groove is complete.

[0021] Step 2: Rotate the rotating rod to align the electric push rod with the mold box. The electric push rod extends downward so that the mold sleeve extends into the mold groove of the mold box. At this time, the small cylinder extends so that the gear engages with the gear ring on the top of the mold sleeve.

[0022] Step three: Place the mold sleeve into the mold box so that the cutting groove on the edge of the mold sleeve matches the injection groove. The cutting groove and the injection groove form a through hole. The worker then turns the injector upward and inserts the injection tube of the injector into the through hole.

[0023] In step 4, the molten raw material is injected into the mold groove from the injection pipe, and the excess air in the mold groove is discharged from the exhaust groove. The raw material is continuously injected into the exhaust groove. As the raw material liquid level in the exhaust groove continues to rise, the paddle is pushed up and contacts the press switch. The entire electrical circuit is closed, and the single-chip microcomputer controls the electronic valve in the condenser to open, and at the same time stops continuing to inject raw materials. The coolant passes through the condenser to lower the base temperature, and the raw material is cooled to form disposable tableware.

[0024] Step 5: After the tableware is cooled and formed, flip the injector and pull out the injection tube. The gear drives the gear ring to rotate, and the gear ring drives the mold sleeve to rotate, so that the thin blade cuts off the excess edge material in the injection groove and the exhaust groove.

[0025] Step six, then control the small cylinder and electric push rod 1 to retract. The retraction of electric push rod 1 lifts the mold sleeve away from the mold box, rotates the rotating rod to align electric push rod 2 with the tableware, and electric push rod 2 extends to make the adsorption module absorb the tableware, and then control the large cylinder to retract to move the conical block away from the base.

[0026] Step seven: the motor rotates and winds the steel wire, which pulls the resistance block into the sleeve, causing the two bases to approach each other and the inner wall of the disposable tableware to move away from the base. At the same time, the electric push rod 2 contracts to drive the disposable tableware to rise, causing the disposable tableware to detach from the base.

[0027] (3) Beneficial effects

[0028] The present invention provides a disposable tableware injection molding demoulding mechanism and demoulding method, which has the following beneficial effects:

[0029] 1. This disposable tableware injection molding demolding mechanism and demolding method utilizes a base and a tapered block to form a mold box. The mold box and mold sleeve are assembled together, and material is injected into the mold to produce the tableware. Because the two bases are hinged together, when the tapered block moves away from the base, the sliding sleeve, a contact block, a motor, and a steel wire drive the two bases toward each other, moving the tableware surface away from the inner wall of the mold groove, facilitating demolding and accelerating demolding efficiency. This replaces traditional ejector pins for demolding, which can cause damage to the molded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 For the present invention Figure 1 A magnified view of the structure at center A;

[0032] Figure 3 It is a schematic diagram of the structure of the present invention from another angle;

[0033] Figure 4 This is a three-dimensional diagram of the mold sleeve structure of the present invention;

[0034] Figure 5 It is an exploded view of the local structure of the present invention;

[0035] Figure 6 It is a partial structural cross-sectional view of the present invention;

[0036] Figure 7 For the present invention Figure 6 A magnified view of the structure at point B in the middle;

[0037] Figure 8 For the present invention Figure 6 A magnified view of the structure at point C in the middle;

[0038] Figure 9 Schematic diagram of the structure of the injector of the present invention;

[0039] Figure 10 Schematic diagram of the internal structure of the sleeve of the present invention.

[0040] In the figure: 1 base, 11 mold groove, 12 injection groove, 121 slope, 13 exhaust groove, 14 groove, 15 slide rod, 16 thin spring, 17 single chip microcomputer, 18 battery, 2 mold sleeve, 21 column, 22 gear ring, 221 oblique rod, 23 cutting groove, 231 thin blade, 3 tapered block, 31 large cylinder, 4 injector, 41 hinge block, 42 ​​injection module, 43 injection tube, 5 sleeve, 51 contact block, 52 base plate, 53 motor, 54 steel wire, 55 thick spring, 6 condenser, 7 paddle, 8 push switch, 9 rotating rod, 91 electric push rod 1, 92 electric push rod 2, 93 adsorption module, 10 small cylinder, 101 motor, 102 gear. DETAILED DESCRIPTION

[0041] The embodiment of the present invention provides a disposable tableware injection molding and demoulding mechanism, such as Figure 1-10 As shown, the mold comprises two bases 1, each having a trapezoidal cross-section, with the hypotenuse facing downward and capable of approaching each other. The two bases 1 are hinged together, with two tapered blocks 3 positioned symmetrically between them. The bases 1 and the tapered blocks 3 form a complete mold box, with a mold slot 11 defined within the box and a mold sleeve 2 positioned above the box.

[0042] Combined with attachment Figure 1 、 3 As shown in Figures 5 and 6, when the conical block 3 is inserted between the two bases 1, the top of the base 1 is horizontal, and after the two are assembled, the mold groove 11 forms a complete bowl shape.

[0043] The lower end of the mold sleeve 2 extends into the mold groove 11. The inner wall of the mold groove 11 is provided with multiple injection grooves 12, which are arranged symmetrically on the front and back sides. The inner wall of the mold groove 11 also has two exhaust grooves 13, which are arranged symmetrically on the left and right sides. The injector 4 is fixedly mounted on the side of the base 1.

[0044] When the mold sleeve 2 extends into the mold groove 11 , the injector 4 injects the molten raw material into the injection groove 12 , and the raw material enters the mold groove 11 .

[0045] A large cylinder 31 is welded to the bottom of the conical block 3, a cutting groove 23 is opened on the edge of the mold sleeve 2, and a thin blade 231 is fixedly installed on the lower edge of the inner wall of the cutting groove 23, and the mold sleeve 2 can rotate around the center of the circle.

[0046] The injection slot 12 and vent slot 13 are semicircular holes with a diameter of 1 cm. The cutout slot 23 is also a semicircular hole with a diameter of 1 cm. The mold sleeve 2 is placed into the mold cavity 11, with the cutout slots 23 corresponding to the injection slots 12. The cutout slots 23 and the injection slots 12 form a through hole, allowing the injection tip of the injector 4 to extend into the through hole.

[0047] Combined with attachment Figure 7It can be seen that the disposable tableware produced has a flange, and the flange of the tableware is in contact with the injection groove 12 and the exhaust groove 13. Therefore, excess edge material will remain in the injection groove 12 and the exhaust groove 13 during the injection molding process, thereby forming excess edge material.

[0048] During operation, molten raw material is injected through the through-hole. After the entire mold groove 11 is filled, the excess material overflows into the venting groove 13. After injection is completed, the injection end of the injector 4 is pulled out of the through-hole. After cooling, when the mold sleeve 2 rotates around the center of the circle, the cutting groove 23 carrying the thin blade 231 rotates to cut off the excess edge material from the connection point of the tableware flange.

[0049] A condenser 6 runs through the base 1, and an electronic valve is fixedly installed in the condenser 6. A groove 14 is opened in the base 1 near the exhaust groove 13, and the groove 14 is connected to the exhaust groove 13. A vertical slide rod 15 is welded in the groove 14, and the slide rod 15 is slidably fitted with a paddle 7, and one end of the paddle 7 can be extended into the exhaust groove 13.

[0050] The slide rod 15 is provided with a thin spring 16 above the paddle 7. A push switch 8 is fixedly mounted on the top of the inner wall of the groove 14. A single-chip microcomputer 17 and a battery 18 are fixedly mounted in the groove 14. The single-chip microcomputer 17, the battery 18, the push switch 8 and the electronic valve are electrically connected.

[0051] Working Principle: Excess material enters exhaust slot 13, pushing paddle 7 upward. When paddle 7 reaches a certain height, it contacts push switch 8. Microcontroller 17 receives this information and controls the electronic valve to open, allowing coolant to flow through condenser tube 6, lowering the temperature of base 1 and accelerating cooling. When microcontroller 17 controls the electronic valve, it also stops injector 4.

[0052] Four columns 21 are welded at equal angles around the center of the circle on the top of the mold sleeve 2. A gear ring 22 is provided above the mold sleeve 2. An oblique rod 221 is welded to the upper end of the gear ring 22 through the gear ring 22. The gear ring 22 is welded to the rod body of the column 21. A rotating rod 9 is provided above the gear ring 22. An electric push rod 91 is fixedly installed at one end of the rotating rod 9. The upper ends of the four oblique rods 221 are merged together and pivotally connected to the lower end of the electric push rod 91.

[0053] A small cylinder 10 is fixedly mounted on the side of the base 1 on the right side, and a motor 101 is fixedly mounted on the movable end of the small cylinder 10 . A gear 102 is welded to the transmission shaft of the motor 101 , and the gear 102 is meshed with the gear ring 22 .

[0054] A sleeve 5 is positioned between the two bases 1. A motor 53 is fixedly mounted within the sleeve 5. Base plates 52 are located on either side of the motor 53, welded to the inner wall of the sleeve 5. A contact block 51 is located on the side of the base plate 52 facing away from the motor 53. The contact block 51 slidably engages with the sleeve 5. One end of the contact block 51 extends outside the sleeve 5 and is hingedly connected to the base 1.

[0055] A thick spring 55 is welded between the abutment block 51 and the base plate 52 . A steel wire 54 is welded to the transmission shaft of the motor 53 . The steel wire 54 passes through the base plate 52 and is welded to the abutment block 51 .

[0056] Working principle: After the conical block 3 moves away from the base 1, the motor 53 winds the steel wire 54, which pulls the abutment block 51 into the sleeve 5, thereby driving the two bases 1 closer to each other. To this end, the single chip microcomputer 17 is also electrically connected to the motor 53.

[0057] The injector 4 includes a hinge block 41, an injection module 42, and an injection tube 43. The lower end of the hinge block 41 is welded to the outer side of the base 1, and the upper end of the hinge block 41 is hinged to the injection module 42. The injection tube 43 is fixedly mounted on the injection module 42 and can extend into the injection tank 12. The injection module 42 is conventional in the prior art, so the specific structure will not be described in detail.

[0058] The end of the rotating rod 9 away from the electric push rod 1 91 is fixedly mounted with the electric push rod 2 92, and the lower end of the electric push rod 2 92 is fixedly mounted with a suction module 93, which is used to suck the finished tableware. The suction module 93 is a conventional technical means, consisting of a suction cup and an air pump structure, so it will not be described in detail.

[0059] The upper edge of the mold groove 11 is provided with a plurality of slopes 121 , and the slopes 121 correspond one-to-one to the injection grooves 12 . This arrangement facilitates the connection between the injection pipe 43 of the injector 4 and the injection groove 12 .

[0060] It also includes a T-shaped rod, the transverse portion of the T-shaped rod is welded to the large cylinder 31, and the longitudinal portion of the T-shaped rod is welded to the bottom of the sleeve 5.

[0061] A method for injection molding and demoulding of disposable tableware, characterized by:

[0062] Step 1: Start the large cylinder 31 to push the conical block 3 between the two bases 1, so that the two bases 1 are arranged horizontally. The base 1 and the conical block 3 form a mold box, and the mold groove 11 is spliced ​​completely.

[0063] Step 2: Rotate the rotating rod 9 to align the electric push rod 91 with the mold box. The electric push rod 91 extends downward so that the mold sleeve 2 extends into the mold groove 11 of the mold box. At this time, the small cylinder 10 extends so that the gear 102 engages with the gear ring 22 on the top of the mold sleeve 2.

[0064] In step three, the mold sleeve 2 is placed into the mold box so that the cutting groove 23 on the edge of the mold sleeve 2 coincides with the injection groove 12. The cutting groove 23 and the injection groove 12 form a through hole. The worker then turns the injector 4 upward and inserts the injection tube 43 of the injector 4 into the through hole.

[0065] In step four, the molten raw material is injected into the mold groove 11 from the injection tube 43, and the excess air in the mold groove 11 is discharged from the exhaust groove 13. The raw material is continuously injected into the exhaust groove 13. As the liquid level of the raw material in the exhaust groove 13 continues to rise, the paddle 7 is pushed up and contacts the press switch 8. The entire electrical circuit is closed, and the single-chip microcomputer 17 controls the electronic valve in the condenser 6 to open, and at the same time stops continuing to inject raw materials. The coolant passes through the condenser 6 to lower the temperature of the base 1, and the raw material is cooled to form disposable tableware.

[0066] Step 5: After the tableware is cooled and formed, flip the injector 4 to pull out the injection tube 43, and the gear 102 drives the gear ring 22 to rotate, and the gear ring 22 drives the mold sleeve 2 to rotate, so that the thin blade 231 cuts off the excess edge material in the injection groove 12 and the exhaust groove 13.

[0067] Step six, then control the small cylinder 10 and the electric push rod 1 91 to contract. The electric push rod 1 91 contracts to lift the mold sleeve 2 away from the mold box, rotate the rotating rod 9 to align the electric push rod 2 92 with the tableware, and the electric push rod 2 92 extends to make the adsorption module 93 suck the tableware, and then control the large cylinder 31 to contract to move the conical block 3 away from the base 1.

[0068] In step seven, the motor 53 rotates the winding wire 54, and the wire 54 pulls the resistance block 51 into the sleeve 5, so that the two bases 1 approach each other, and the inner wall of the disposable tableware moves away from the base 1. At the same time, the electric push rod 2 92 contracts to drive the disposable tableware to rise, so that the disposable tableware is separated from the base 1.

[0069] In summary, the disposable tableware injection molding demolding mechanism and demolding method comprises a mold box formed by establishing a base 1 and a conical block 3, assembling the mold box and the mold sleeve 2 together, and injecting material into the interior to produce tableware. Because the two bases 1 are hinged to each other, when the conical block 3 moves away from the base 1, the sleeve 5, the abutment block 51, the motor 53, and the steel wire 54 cooperate to drive the two bases 1 toward each other, so that the surface of the tableware and the inner wall of the mold groove 11 are separated from each other, which facilitates demolding and accelerates demolding efficiency. It replaces the traditional ejector for demolding, which causes damage to the molded parts.

[0070] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A disposable tableware injection molding and demoulding mechanism, characterized by: The mold box comprises two bases (1), wherein the cross section of the bases (1) is trapezoidal, the oblique sides of the cross sections of the two bases (1) face downward and are close to each other, the two bases (1) are hinged together, two conical blocks (3) are provided between the two bases (1), and the two conical blocks (3) are arranged symmetrically in front and back. The bases (1) and the conical blocks (3) form a complete mold box, a mold groove (11) is provided in the mold box, and a mold sleeve (2) is provided above the mold box; The lower end of the mold sleeve (2) extends into the mold groove (11), and the inner wall of the mold groove (11) is provided with a plurality of injection grooves (12), and the plurality of injection grooves (12) are symmetrically arranged on the front and back sides. The inner wall of the mold groove (11) is also provided with two exhaust grooves (13), and the two exhaust grooves (13) are symmetrically arranged on the left and right sides. The side of the base (1) is connected to an injector (4), and the injector (4) injects the molten raw material into the injection groove (12); The bottom of the conical block (3) is connected to a large cylinder (31), the edge of the mold sleeve (2) is provided with a cutting groove (23), the lower edge of the inner wall of the cutting groove (23) is provided with a thin blade (231), and the mold sleeve (2) can rotate around the center of a circle; The injection groove (12) and the exhaust groove (13) are semicircular holes with a diameter of 1 cm. The cutting groove (23) is also a semicircular hole with a diameter of 1 cm. The cutting groove (23) can form a through hole with the injection groove (12), so that the injection end of the injector (4) can extend into the through hole. When the mold sleeve (2) rotates around the center of the circle, the cutting groove (23) carries the thin blade (231) to rotate and cut off the edge material in the injection groove (12) and the exhaust groove (13); A sleeve (5) is provided between the two bases (1), a motor (53) is provided in the sleeve (5), and base plates (52) are provided on both the left and right sides of the motor (53). A resistance block (51) is provided on the side of the base plate (52) away from the motor (53). The resistance block (51) and the sleeve (5) are slidably matched. One end of the resistance block (51) extends outside the sleeve (5) and contacts the base (1). A thick spring (55) is connected between the resistance block (51) and the base plate (52). The motor (53) is connected to a steel wire (54), and the steel wire (54) passes through the base plate (52) and is connected to the resistance block (51).

2. The disposable tableware injection molding and demoulding mechanism according to claim 1, characterized in that: The base (1) is penetrated by a condenser (6), an electronic valve is provided in the condenser (6), a groove (14) is provided in the base (1) near the exhaust groove (13), the groove (14) is communicated with the exhaust groove (13), a vertical slide bar (15) is connected in the groove (14), the slide bar (15) is slidably matched with a paddle (7), one end of the paddle (7) can extend into the exhaust groove (13), a thin spring (16) is provided on the body of the slide bar (15) and above the paddle (7), a press switch (8) is provided at the top of the inner wall of the groove (14), a single chip microcomputer (17) and a battery (18) are provided in the groove (14), and the single chip microcomputer (17), the battery (18), the press switch (8) and the electronic valve are electrically connected.

3. The disposable tableware injection molding and demoulding mechanism according to claim 2, characterized in that: Four columns (21) are provided at equal angles around the center of the circle on the top of the mold sleeve (2). A gear ring (22) is provided above the mold sleeve (2). The upper end of the gear ring (22) passes through the gear ring (22) and is connected to an inclined rod (221). The gear ring (22) is connected to the rod body of the column (21). A rotating rod (9) is provided above the gear ring (22). One end of the rotating rod (9) is connected to an electric push rod (91). The upper ends of the four inclined rods (221) are merged together and pivotally connected to the lower end of the electric push rod (91). A small cylinder (10) is connected to the side of the base (1) on the right side. The movable end of the small cylinder (10) is connected to a motor (101). The transmission shaft of the motor (101) is connected to a gear (102). The gear (102) is meshed with the gear ring (22).

4. The disposable tableware injection molding and demoulding mechanism according to claim 3, characterized in that: The injector (4) includes a hinge block (41), an injection module (42) and an injection tube (43). The lower end of the hinge block (41) is connected to the outer side of the base (1), and the upper end of the hinge block (41) is hinged to the injection module (42). The injection tube (43) is fixedly mounted on the injection module (42), and the injection tube (43) can extend into the injection slot (12).

5. The disposable tableware injection molding and demoulding mechanism according to claim 4, characterized in that: The end of the rotating rod (9) away from the electric push rod (91) is connected to the electric push rod (92), and the lower end of the electric push rod (92) is fixedly mounted with an adsorption module (93), which is used to adsorb the finished tableware.

6. The disposable tableware injection molding and demoulding mechanism according to claim 5, characterized in that: The upper edge of the mold groove (11) is provided with a plurality of slopes (121), and the slopes (121) correspond one to one with the injection grooves (12).

7. The disposable tableware injection molding and demoulding mechanism according to claim 6, characterized in that: It also includes a T-shaped rod, the transverse portion of the T-shaped rod is connected to the large cylinder (31), and the longitudinal portion of the T-shaped rod is connected to the sleeve (5).

8. The demoulding method of the disposable tableware injection molding demoulding mechanism according to claim 7, characterized in that: Step 1: Start the large cylinder (31) to push the conical block (3) between the two bases (1), so that the two bases (1) are arranged horizontally, and the base (1) and the conical block (3) form a mold box, and the mold groove (11) is spliced ​​together completely; Step 2: Rotate the rotating rod (9) to align the electric push rod 1 (91) with the mold box, and the electric push rod 1 (91) extends downward so that the mold sleeve (2) extends into the mold groove (11) of the mold box. At this time, the small cylinder (10) extends so that the gear (102) engages with the gear ring (22) at the top of the mold sleeve (2); Step 3: The mold sleeve (2) is placed in the mold box so that the cutting groove (23) on the edge of the mold sleeve (2) coincides with the injection groove (12). The cutting groove (23) and the injection groove (12) form a through hole. The worker then turns the injector (4) upward so that the injection tube (43) of the injector (4) is inserted into the through hole. Step 4: The molten raw material is injected into the mold groove (11) from the injection pipe (43), and the excess air in the mold groove (11) is discharged from the exhaust groove (13). The raw material is continuously injected into the exhaust groove (13). As the liquid level of the raw material in the exhaust groove (13) continues to rise, the push piece (7) is pushed up and contacts the press switch (8), and the entire electrical circuit is closed. The single chip microcomputer (17) controls the electronic valve in the condenser (6) to open, and at the same time stops continuing to inject the raw material. The coolant passes through the condenser (6) to reduce the temperature of the base (1), and the raw material is cooled to form disposable tableware; Step 5: After the tableware is cooled and formed, the injector (4) is turned over to pull out the injection tube (43), the gear (102) drives the gear ring (22) to rotate, and the gear ring (22) drives the mold sleeve (2) to rotate, so that the thin blade (231) cuts off the excess edge material in the injection groove (12) and the exhaust groove (13); Step 6: Then, the small cylinder (10) and the electric push rod (91) are controlled to contract. The electric push rod (91) contracts to lift the mold sleeve (2) away from the mold box. The rotating rod (9) is rotated to align the electric push rod (92) with the tableware. The electric push rod (92) extends to allow the adsorption module (93) to absorb the tableware. Then, the large cylinder (31) is controlled to contract to move the conical block (3) away from the base (1). In step seven, the motor (53) rotates the winding wire (54), and the wire (54) pulls the abutment block (51) into the sleeve (5), so that the two bases (1) approach each other, and the inner wall of the disposable tableware moves away from the base (1). At the same time, the electric push rod (92) contracts to drive the disposable tableware to rise, so that the disposable tableware is separated from the base (1).

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