Injection mold with self-cleaning device

Abstract

The injection mold with the self-cleaning device comprises a fixing base and a fixing plate arranged on one side of the fixing base, a supporting plate is arranged on the upper surface of the fixing base in a sliding mode, an outer mold is arranged at the upper end of the fixing plate, an inner mold matched with the outer mold is rotationally arranged on the supporting plate, and a clamping assembly is arranged at the joint of the outer mold and the inner mold. A cleaning roller is arranged at the other end of the outer mold, a connecting assembly is arranged between the cleaning roller and the front end face of the inner mold, an unlocking assembly for unlocking the connecting assembly is arranged on the inner wall of the cleaning roller, and a cleaning assembly for cleaning the inner wall of the outer mold is arranged on the outer surface of the cleaning roller; according to the mold cleaning device, the fixed mold subjected to cooling forming is fixedly clamped through the clamping assembly, the motor drives the inner mold to rotate so that the fixed mold can be separated, the cleaning assembly is driven to clean the inner wall of the outer mold in the rotating process of the inner mold, impurities are adsorbed, and the situation that the inner wall of the mold is not cleaned in place in a conventional cleaning device is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, in particular to an injection mold with a self-cleaning device. Background Art

[0002] An injection mold is a tool for producing plastic products. Injection molding is a processing method used in mass production of certain complex-shaped parts. Specifically, it refers to the injection molded products obtained by injecting the heated and melted resin raw material into the mold cavity under high pressure and then cooling and solidifying it.

[0003] In a Chinese invention patent with publication number CN117841267A, a prior art of an injection molding machine for split material injection molding is proposed, which specifically proposes "an injection molding component for implementing split material injection molding, in which raw materials of different colors are filled during injection molding to achieve color adjustment, a cleaning component for cleaning the inside of the molten tube is slidably arranged on the injection molding component, the cleaning component is automatically placed in the molten tube, and the cleaning component moves in the molten tube, and a scraping component for cleaning the feeding screw is arranged on the side of the injection molding component"; another invention patent with publication number CN21 A Chinese utility model patent 9360115U proposes an automatic feeding and distributing system for an injection molding machine, including a loading bin, a vacuum suction machine and a discharging hopper. The automatic feeding and distributing system for the injection molding machine can disperse the material in the middle to both sides of the feeding trough through the inclined guide ramp at the bottom of the feeding trough, and lead it out through the powder pipe to achieve the purpose of distributing and improve the uniformity of distributing. By directly setting the filter screen inside the loading bin, the feeding efficiency of the loading bin is improved, and the cleaning rod is driven to rotate by the rotating shaft to clean the filter screen through the cleaning rod to avoid filter screen blockage.

[0004] The above-mentioned comparative document also has the following defects: in the above-mentioned prior art, the cleaning component for cleaning the inside of the molten tube cleans the residues in the molten tube through a cleaning head driven by a lifting plate, but the cleaning head cannot take the solidified residues out of the molten tube. For this reason, we propose an injection mold with a self-cleaning device. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art. The present invention comprises a support plate slidably arranged on the upper surface of a fixed seat, an outer mold is arranged on the upper end of the fixed plate, an inner mold matched with the outer mold is rotatably arranged on the support plate, a motor a for driving the inner mold to rotate is arranged on the other end of the support plate, a clamping assembly is arranged at the junction of the outer mold and the inner mold, a cleaning roller is arranged at the other end of the outer mold, a bottom mold plate is arranged on the front end surface of the cleaning roller, a connecting assembly is arranged between the bottom mold plate and the front end surface of the inner mold, an unlocking assembly for unlocking the connecting assembly is arranged on the side of the bottom mold plate, a cleaning assembly for cleaning the inner wall of the outer mold is arranged on the outer surface of the cleaning roller, and the cleaning assembly is rotated by driving assemblies respectively arranged at both ends of the inner mold and the cleaning roller; the present invention performs injection molding by mutual cooperation between the inner mold and the outer mold, and after molding and cooling, the clamping assembly fixes and clamps the fixed mold, the motor drives the inner mold to rotate so that the fixed mold is detached, and during the rotation of the inner mold, the cleaning assembly is simultaneously driven to clean the inner wall of the outer mold and adsorb impurities, thereby avoiding the situation in which the inner wall of the mold is not cleaned properly in the conventional cleaning device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: An injection mold with a self-cleaning device comprises a fixed seat and a fixed plate arranged on one side of the fixed seat, a support plate is slidably arranged on the upper surface of the fixed seat, an outer mold is arranged on the upper end of the fixed plate, a feeding assembly is arranged on one side of the outer mold, an inner film matching the outer mold is rotatably arranged on the support plate, a motor a for driving the inner mold to rotate is arranged at the other end of the support plate, an abutment ring is arranged on the side of the inner mold close to the fixed seat, a clamping assembly is arranged at the junction of the outer mold and the inner mold, a cleaning roller is arranged at the other end of the outer mold, a bottom mold plate is arranged on the front end surface of the cleaning roller, a connecting assembly is arranged between the bottom mold plate and the front end surface of the inner mold, an unlocking assembly for unlocking the connecting assembly is arranged on the side of the bottom mold plate, a cleaning assembly for cleaning the inner wall of the outer mold is arranged on the outer surface of the cleaning roller, and the cleaning assembly is rotated by driving assemblies respectively arranged at both ends of the inner mold and the cleaning roller.

[0007] Preferably, the feeding assembly includes a support seat arranged on one side of the fixed seat, a silo arranged at the upper end of the support seat, a melting tube arranged on the upper end surface of the silo, a threaded conveying blade arranged in the silo, a motor b arranged at the end of the silo, and a discharge port arranged at the other end of the silo.

[0008] Preferably, a feed port is provided at an upper end portion of the outer mold close to the feed assembly, and the feed port is opposite to the discharge port.

[0009] Preferably, the clamping assembly comprises clamping seats fixedly arranged on both sides of the fixing seat and arc-shaped clamping plates slidably arranged in the clamping seats, and the clamping seats are symmetrically arranged.

[0010] Preferably, the connecting assembly includes a slot hole arranged at the end of the inner mold, a limit block symmetrically arranged on the outer end surface of the slot hole, a rectangular slot arranged in the middle of the bottom mold plate, triangular blocks symmetrically arranged at both ends of the rectangular slot, and a return spring a arranged between the triangular blocks.

[0011] Preferably, the unlocking assembly includes a column arranged on one side of the bottom template, a transverse slide groove arranged on the inner wall of the outer mold, an inclined slide groove connected to one side of the transverse slide groove, and an annular slide groove arranged on the inclined slide groove.

[0012] Preferably, the cleaning assembly includes a plurality of air holes arranged on the circumferential side of the cleaning roller, a support rod slidably arranged on the cleaning roller, a cleaning head arranged at the end of the support rod, a return spring b arranged at the other end of the support rod, a guide rail arranged inside the cleaning roller, a plurality of negative pressure holes opened on the circumferential side of the guide rail, an air pipe connected to the end of the guide rail, a T-shaped support rod fixedly arranged on the air pipe, a limit block arranged at the upper end of the cleaning roller, and a T-shaped slot opened on the lower surface of the limit block.

[0013] As a preference, the T-shaped support rods are slidably arranged in the T-shaped slots, and the cleaning heads are staggeredly arranged.

[0014] Preferably, the driving assembly includes gear a respectively arranged at the end of the inner mold and the cleaning roller, baffles arranged on both sides of gear a, a telescopic rod a slidably arranged on a fixed plate, a telescopic rod b slidably arranged inside the telescopic rod a, and gears b respectively arranged at the ends of the telescopic rod a and the telescopic rod b, and the gear a and the gear b are meshed with each other.

[0015] As another preferred embodiment, the bottom template is hollow inside, and a gravity block is fixedly disposed inside the bottom template.

[0016] Beneficial effects of the present invention: 1. The present invention provides a feed assembly at one end of the outer mold, and heat-melts raw materials of different colors through a melting pipe. Driven by the threaded conveying blades, the colors of the melt can be better mixed. At the same time, the feed port is provided at the upper end of the outer mold, so that the melt can flow better in the mold and avoid accumulation of the melt in the lower end of the mold.

[0017] 2. The present invention provides a clamping assembly at the junction of the outer mold and the inner mold. After molding and cooling, the clamping assembly fixes and clamps the fixed mold, and the motor drives the inner mold to rotate to disengage the fixed mold, thereby improving the work efficiency of product demoulding.

[0018] 3. The present invention provides a cleaning component on the outer surface of the cleaning roller. The cleaning component is rotated by driving components respectively provided at both ends of the inner mold and the cleaning roller. During the rotation of the inner mold, the cleaning component is simultaneously driven to clean the inner wall of the outer mold and adsorb impurities, thereby avoiding the situation in which the inner wall of the mold is not cleaned properly in conventional cleaning devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the axonometric structure of an injection mold with a self-cleaning device.

[0021] Figure 2 The figure is a schematic cross-sectional view of an injection mold with a self-cleaning device.

[0022] Figure 3 This is a schematic diagram of the axonometric structure of the feed assembly.

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the feed assembly.

[0024] Figure 5 A schematic diagram of the structure of the clamping assembly.

[0025] Figure 6 A schematic diagram of the structure of the drive component.

[0026] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of part B.

[0027] Figure 8 A schematic diagram of the structure of the connection components.

[0028] Fig. 9 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0029] Fig.10 A schematic diagram of the cross-sectional structure of the cleaning component.

[0030] Fig.11 This is a schematic diagram of the axonometric structure of the guide rail.

[0031] Fig.12 This is a schematic diagram of the cross-sectional structure of the cleaning component from another angle.

[0032] In the figure: 1-fixed seat; 2-fixed plate; 3-support plate; 4-outer mold; 5-feeding assembly; 6-inner mold; 7-motor a; 8-contact ring; 9-clamping assembly; 10-cleaning roller; 11-bottom mold plate; 12-connecting assembly; 13-unlocking assembly; 14-cleaning assembly; 15-driving assembly; 51-support seat; 52-bin; 53-melting pipe; 54-threaded conveying blade; 55-motor b; 56-discharging port; 91-clamping seat; 92-arc clamping plate; 121-slot hole; 122-limiting block; 12 3-rectangular groove; 124-triangular block; 125-reset spring a; 131-column; 132-horizontal slide; 133-inclined slide; 134-annular slide; 141-air vent; 142-support rod; 143-cleaning head; 144-reset spring b; 145-guide rail; 146-negative pressure hole; 147-trachea; 148-T-type support rod; 149-limiting block; 151-gear a; 152-blocking piece; 153-telescopic rod a; 154-telescopic rod b; 155-gear b; 1410-T-slot. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1

[0034] Reference Figure 1-Figure 12 , an injection mold with a self-cleaning device, comprising a fixed seat 1 and a fixed plate 2 arranged on one side of the fixed seat 1, a support plate 3 is slidably arranged on the upper surface of the fixed seat 1, an outer mold 4 is arranged on the upper end of the fixed plate 2, a feeding assembly 5 is arranged on one side of the outer mold 4, an inner film 6 that cooperates with the outer mold 4 is rotatably arranged on the support plate 3, a motor a7 that drives the inner mold 6 to rotate is arranged on the other end of the support plate 3, a contact ring 8 is arranged on the inner mold 6 near the fixed seat 1, and a contact ring 8 is arranged at the junction of the outer mold 4 and the inner mold 6 A clamping component 9 is provided, and a cleaning roller 10 is provided at the other end of the outer mold 4. A bottom mold plate 11 is provided on the front end surface of the cleaning roller 10, and a connecting component 12 is provided between the bottom mold plate 11 and the front end surface of the inner mold 6. An unlocking component 13 for unlocking the connecting component 12 is provided on the side of the bottom mold plate 11. A cleaning component 14 for cleaning the inner wall of the outer mold 4 is provided on the outer surface of the cleaning roller 10, and the cleaning component 14 is rotated by driving components 15 respectively provided at both ends of the inner mold 6 and the cleaning roller 10.

[0035] Reference Figure 3-Figure 4The feeding assembly 5 includes a support seat 51 arranged on one side of the fixed seat 1, a silo 52 arranged on the upper end of the support seat 51, a melting pipe 53 arranged on the upper end surface of the silo 52, a threaded conveying blade 54 arranged in the silo 52, a motor b55 arranged at the end of the silo 52, and a discharge port 56 arranged at the other end of the silo 52; a feeding port 41 is arranged at the upper end of the outer mold 4 close to the feeding assembly 5, and the feeding port 41 is opposite to the discharge port 56.

[0036] It is worth mentioning here that raw materials of different colors are heat-melted through the melting tube 53 , and driven by the threaded conveying blades 54 , the colors of the melts can be better mixed.

[0037] Reference Figure 5 The clamping assembly 9 includes clamping seats 91 fixedly arranged on both sides of the fixing seat 1 and arc-shaped clamping plates 92 slidably arranged in the clamping seats 91, and the clamping seats 91 are symmetrically arranged.

[0038] In this embodiment, the cooled mold is clamped by an arc-shaped clamping plate 92, and driven by a motor a7, the inner mold 6 is driven to rotate for demolding.

[0039] Reference Figure 6-Figure 8 The connecting component 12 includes a slot 121 arranged at the end of the inner mold 6, a limit block 122 symmetrically arranged on the outer end surface of the slot 121, a rectangular slot 123 arranged in the middle of the bottom mold plate 11, triangular blocks 124 symmetrically arranged at both ends of the rectangular slot 123, and a return spring a125 arranged between the triangular blocks 124.

[0040] It is worth mentioning here that the triangular blocks 124 at both ends are squeezed by the limiting blocks 122 on both sides, so that the triangular blocks 124 and the limiting blocks 122 are locked, thereby locking the inner mold 6 and the bottom mold plate 11 during the injection molding process.

[0041] Reference Figure 8-Figure 9 The unlocking assembly 13 includes a column 131 arranged on one side of the bottom template 11, a horizontal slide groove 132 arranged on the inner wall of the outer mold 4, an inclined slide groove 133 connected to one side of the horizontal slide groove 132, and an annular slide groove 134 arranged on the inclined slide groove 133.

[0042] In this embodiment, by sliding the column 131 in the transverse slide groove 132, the connection assembly 12 can be ensured to be in a locked state. When the column 131 is in the inclined slide groove 133, it rotates to unlock the lock between the inner mold 6 and the bottom mold plate 11.

[0043] Reference Figure 10-12The cleaning assembly 14 includes a plurality of air holes 141 arranged on the peripheral side of the cleaning roller 10, a support rod 142 slidably arranged on the cleaning roller 10, a cleaning head 143 arranged at the end of the support rod 142, a return spring b144 arranged at the other end of the support rod 142, a guide rail 145 arranged inside the cleaning roller 10, a plurality of negative pressure holes 146 opened on the peripheral side of the guide rail 145, an air pipe 147 connected to the end of the guide rail 145, a T-shaped support rod 148 fixedly arranged on the air pipe 147, a limit block 149 arranged at the upper end of the cleaning roller 10, and a T-shaped slot 1410 opened on the lower surface of the limit block 149; the T-shaped support rod 148 is slidably arranged in the T-shaped slot 1410, and the cleaning heads 143 are all staggered.

[0044] It is worth mentioning here that the inner wall of the outer mold 4 is cleaned by the cleaning head 143 driven by the guide roller 145 , and the fallen debris is sucked into the cleaning roller 10 through the negative pressure hole 146 .

[0045] Reference Figure 6 The driving assembly 15 includes a gear a151 respectively arranged at the ends of the inner mold 6 and the cleaning roller 10, a blocking piece 152 arranged on both sides of the gear a151, a telescopic rod a153 slidably arranged on the fixed plate 2, a telescopic rod b154 slidably arranged in the telescopic rod a153, and a gear b155 respectively arranged at the ends of the telescopic rod a153 and the telescopic rod b154, and the gear a151 and the gear b155 are meshed with each other.

[0046] In this embodiment, the gear b155 is driven to move left and right by the blocking pieces 152 on both sides of the gear a151, and the gear a151 and the gear b155 will not be misaligned.

[0047] Reference Figure 2 The bottom template 11 is hollow inside, and a gravity block is fixed inside the bottom template 11.

[0048] It is worth mentioning here that, under the action of the gravity block, the column 131 can be placed at the entrance of the inclined slide groove 133, which is convenient for connecting the bottom mold plate 11 and the inner mold 6.

[0049] The working process is as follows

[0050] When the inner mold 6 slides into the outer mold 4, the limit blocks 122 at the ends of the inner mold 6 squeeze the triangular blocks 124 at both ends, so that the triangular blocks 124 and the limit blocks 122 are locked. At this time, the inner mold 6 and the bottom mold plate 11 are in a close contact state; the abutment ring 8 on the inner mold 6 fills the gap between the inner mold 6 and the outer mold 4; the threaded conveying blade 54 conveys the melt through the discharge port 56 to the feed port 41 for injection molding; After the injection molding is completed, the inner mold 6 moves outward, driving the cleaning roller 10 to move outward synchronously, and the column 131 rotates when in the inclined slide groove 133 to unlock the lock between the inner mold 6 and the bottom mold plate 11; the arc clamping plate 92 clamps the formed mold, starts the motor a7, and the inner mold 6 rotates and then exits the mold; while the inner mold 6 rotates, the gear a151 engages with the gear b155, thereby driving the cleaning roller 10 to rotate, and the cleaning head 143 on the cleaning roller 10 rotates and retracts on the cleaning roller 10 under the action of the guide rail 145, to clean the inner wall of the outer mold 4, and the cleaned debris is adsorbed into the cleaning roller 10 through the negative pressure hole 146, completing the cleaning of the inner wall of the outer mold 4.

[0051] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection mold with a self-cleaning device, comprising a fixing seat (1) and a fixing plate (2) arranged on one side of the fixing seat (1), characterized in that: A support plate (3) is slidably provided on the upper surface of the fixed seat (1); an outer mold (4) is provided on the upper end of the fixed plate (2); a feeding assembly (5) is provided on one side of the outer mold (4); an inner mold (6) which cooperates with the outer mold (4) is rotatably provided on the support plate (3); a motor a (7) for driving the inner mold (6) to rotate is provided at the other end of the support plate (3); an abutment ring (8) is provided on the side of the inner mold (6) close to the fixed seat (1); a clamping assembly (9) is provided at the junction of the outer mold (4) and the inner mold (6); and the other end of the outer mold (4) is provided with a contact ring (8). A cleaning roller (10) is provided at the end thereof, a bottom mold plate (11) is provided at the front end surface of the cleaning roller (10), a connecting component (12) is provided between the bottom mold plate (11) and the front end surface of the inner mold (6), an unlocking component (13) for unlocking the connecting component (12) is provided on the side surface of the bottom mold plate (11), a cleaning component (14) for cleaning the inner wall of the outer mold (4) is provided on the outer surface of the cleaning roller (10), and the cleaning component (14) is rotated by driving components (15) respectively provided at both ends of the inner mold (6) and the cleaning roller (10).

2. An injection mold with a self-cleaning device according to claim 1, characterized in that: The feed assembly (5) comprises a support seat (51) arranged on one side of the fixed seat (1), a silo (52) arranged at the upper end of the support seat (51), a melting pipe (53) arranged on the upper end surface of the silo (52), a threaded conveying blade (54) arranged in the silo (52), a motor b (55) arranged at the end of the silo (52), and a discharge port (56) arranged at the other end of the silo (52).

3. The injection mold with a self-cleaning device according to claim 3, characterized in that: A feed port (41) is provided at the upper end of the outer mold (4) on the side close to the feed assembly (5), and the feed port (41) is located opposite to the discharge port (56).

4. The injection mold with a self-cleaning device according to claim 1, characterized in that: The clamping assembly (9) comprises clamping seats (91) fixedly arranged on both sides of the fixing seat (1) and arc-shaped clamping plates (92) slidably arranged in the clamping seats (91); the clamping seats (91) are symmetrically arranged.

5. The injection mold with a self-cleaning device according to claim 1, characterized in that: The connecting assembly (12) comprises a slot (121) arranged at the end of the inner mold (6), a limit block (122) symmetrically arranged on the outer end surface of the slot (121), a rectangular slot (123) arranged in the middle of the bottom mold plate (11), triangular blocks (124) symmetrically arranged at both ends of the rectangular slot (123), and a return spring a (125) arranged between the triangular blocks (124).

6. The injection mold with a self-cleaning device according to claim 1, characterized in that: The unlocking assembly (13) comprises a column (131) arranged on one side of the bottom mold plate (11), a transverse slide groove (132) arranged on the inner wall of the outer mold (4), an inclined slide groove (133) connected to one side of the transverse slide groove (132), and an annular slide groove (134) arranged on the inclined slide groove (133).

7. The injection mold with a self-cleaning device according to claim 1, characterized in that: The cleaning assembly (14) comprises a plurality of air holes (141) arranged on the circumference of the cleaning roller (10), a support rod (142) slidably arranged on the cleaning roller (10), a cleaning head (143) arranged at the end of the support rod (142), a return spring b (144) arranged at the other end of the support rod (142), a guide rail (145) arranged inside the cleaning roller (10), a plurality of negative pressure holes (146) opened on the circumference of the guide rail (145), an air pipe (147) connected to the end of the guide rail (145), a T-shaped support rod (148) fixedly arranged on the air pipe (147), a limit block (149) arranged at the upper end of the cleaning roller (10), and a T-shaped groove (1410) opened on the lower surface of the limit block (149).

8. The injection mold with a self-cleaning device according to claim 7, characterized in that: The T-shaped support rods (148) are slidably arranged in the T-shaped slots (1410), and the cleaning heads (143) are all arranged in a staggered manner.

9. The injection mold with a self-cleaning device according to claim 1, characterized in that: The driving assembly (15) comprises a gear a (151) respectively arranged at the ends of the inner mold (6) and the cleaning roller (10), blocking plates (152) arranged at both sides of the gear a (151), a telescopic rod a (153) slidably arranged on the fixed plate (2), a telescopic rod b (154) slidably arranged inside the telescopic rod a (153), and a gear b (155) respectively arranged at the ends of the telescopic rod a (153) and the telescopic rod b (154), wherein the gear a (151) and the gear b (155) are meshed with each other.

10. The injection mold with a self-cleaning device according to claim 1, characterized in that: The bottom template (11) is hollow inside, and a gravity block is fixedly arranged inside the bottom template (11).

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