A multi-station rotary hot melt machine

Abstract

This invention discloses a multi-station rotary hot melt machine, including a base, a frame vertically mounted on the upper edge of the base, a drive mechanism fixed on the frame, and a main drive motor installed inside the base. It also includes a rotary mechanism and a hot pressing mechanism. The rotary mechanism is mounted on top of the main drive motor. The rotary mechanism includes a turntable, and multiple carriers are arranged on the top surface of the turntable. The hot pressing mechanism is mounted at the lower end of the drive mechanism. The drive mechanism drives the hot pressing mechanism downwards to the carriers to heat and melt plastic parts placed inside the carriers. The carriers include a hot melt frame, and retractable lateral adjustment members are provided on the lower parts of opposite sides of the hot melt frame. The hot melt seat slides longitudinally inside the hot melt frame near the lower end. When the lateral adjustment members extend and retract horizontally at the lower part of the hot melt frame, they push the hot melt seat to move axially along the hot melt frame, adjusting the distance from the top surface of the hot melt seat to the top port of the hot melt frame, thus controlling the hot melt volume of the plastic.

Description

Technical Field

[0001] This invention relates to the field of hot melt processing technology for plastics, and specifically to a multi-station rotary hot melt machine. Background Technology

[0002] In the production of plastic products, hot melt machines are often used to heat and melt the plastic. After heating, the plastic melts, increasing its plasticity and facilitating subsequent processing and molding. During the hot melt process, the degree of heat melting is usually controlled according to the needs of subsequent processing. Only by effectively controlling the degree of heat extrusion of the plastic by the hot melt machine can the desired plastic material be obtained. Most existing hot melt equipment only controls the temperature during the hot melt process. However, even if the heating temperature reaches the required level, because the plastic material itself is lumpy, some material may not be completely melted before it is fully melted, resulting in uneven heat melting of the plastic material.

[0003] Therefore, the state of the plastic after hot melting can be controlled by its volume. While controlling the temperature, the hot melting equipment also controls the volume of the plastic material to achieve the most complete hot melting possible. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-station rotary hot melt machine that can control the hot melt volume of plastics to improve the hot melt effect.

[0005] To achieve the objectives of this invention, the following technical solution is adopted:

[0006] A multi-station rotary hot melt machine includes a base, a frame vertically mounted on the upper edge of the base, a drive mechanism fixed on the frame, a main drive motor installed inside the base, and also includes a rotary mechanism and a hot pressing mechanism.

[0007] The turntable mechanism is mounted on the top of the main drive motor; the turntable mechanism includes a turntable, and multiple carriers are provided on the top surface of the turntable, the carriers being used to support the plastic parts being melted.

[0008] The hot pressing mechanism is installed at the lower end of the drive mechanism; the drive mechanism drives the hot pressing mechanism to move downwards onto the carrier, thereby heating and melting the plastic parts placed inside the carrier.

[0009] The carrier includes a hot melt frame, with retractable lateral adjustment members on the lower parts of opposite sides of the hot melt frame; the hot melt seat slides longitudinally inside the hot melt frame near the lower end; when the lateral adjustment members extend or retract horizontally at the lower part of the hot melt frame, they push the hot melt seat to move axially along the hot melt frame to adjust the distance from the top surface of the hot melt seat to the top port of the hot melt frame, so as to accommodate the hot melt processing of plastic parts of various thicknesses; the driving mechanism controls the downward movement distance of the hot pressing mechanism each time to adjust the thickness of the hot pressing of the plastic part.

[0010] Through the above technical solution, the motor drives the conveyor belt of the conveyor frame to move, and the movement of the belt transports the plastic material placed on it to the carrier on the turntable mechanism. Then, the main drive motor drives the turntable to rotate, rotating another carrier to the position corresponding to the output port of the conveyor frame, and the plastic material on the conveyor frame is transported into the corresponding carrier. As the main drive motor rotates, plastic material to be heated and melted is added to each carrier on the turntable one by one.

[0011] The main drive motor then rotates, moving the carrier directly beneath the hot pressing mechanism. The drive mechanism uses a linear stepper motor, which drives the hot pressing mechanism vertically downwards a certain distance to the corresponding carrier. The hot pressing mechanism heats the plastic inside the carrier, causing it to melt. A thermometer is located on the lower surface of the hot pressing mechanism to monitor the melting temperature in real time.

[0012] The lower end of the hot pressing mechanism enters the hot melt frame and squeezes the plastic material downwards. The drive mechanism of this application uses a linear stepper motor, which can adjust the distance the hot pressing mechanism moves downwards in a straight line, thereby controlling the degree of squeezing of the plastic material in the carrier by the hot pressing mechanism.

[0013] The plastic to be melted is placed on the hot melt base. Depending on the needs of the plastic's hot melt processing, the lateral adjustment component is moved laterally, either extending into the interior of the hot melt frame or moving a certain distance outwards. As the lateral position of the adjustment component is adjusted, the hot melt base rises or falls vertically within the hot melt frame under the pushing action of the component, thus adjusting the distance between the upper end of the hot melt base and the upper port of the hot melt frame.

[0014] The distance from the upper end of the hot melt base to the upper port of the hot melt frame is the initial hot melt space when the hot melt process begins. After the hot pressing mechanism extends downward into the upper part of the inner cavity of the hot melt frame, the lower end face of the hot pressing mechanism, the top surface of the hot melt base, and the hot melt frame enclose the space for hot melt processing.

[0015] By moving the lateral adjustment component laterally to raise or lower the hot melt seat, the position of the top surface of the hot melt seat is adjusted. The position of the lower end of the hot pressing mechanism is adjusted by the linear stepper motor of the drive mechanism, thereby adjusting the longitudinal dimension of the hot melt processing space and realizing the adjustment of the hot melt processing space.

[0016] After the initial block-shaped plastic parts are placed inside the carrier, the shape and structure of the plastic blocks may be irregular. Even after being heated in the hot melt frame, because the various parts are not in complete direct contact with the hot pressing mechanism, during the heating and melting process, even if the heating temperature is maintained at a certain value for a period of time, there will still be cases where the plastic blocks are not completely melted.

[0017] In this application, by adjusting the longitudinal distance between the hot-melt seat and the hot-pressing mechanism, the volume of the melted plastic is limited to a certain range; that is, the volume of the melted plastic is restricted, requiring that the volume of the melted plastic must meet the set volume. After being melted, the plastic's fluidity and plasticity are enhanced, and the thoroughly melted plastic can be confined within the space defined by the hot-pressing mechanism and the turntable mechanism. In other words, thorough melting of the plastic is achieved through the control of the hot-melt space, improving the hot-melt effect.

[0018] Preferably, the carrier includes an auxiliary positioning component and a positioning seat. The auxiliary positioning component is vertically disposed on the inner sidewall of the hot melt frame and presses the positioning seat downward to the upper side of the edge of the hot melt seat.

[0019] The auxiliary positioning component, according to the above technical solution, includes a pressing rod, with a pressing spring sleeved on the outside of the pressing rod. A positioning groove extending axially is formed inside the side wall of the hot-melt frame. One end of the pressing rod is threaded to the hot-melt frame, and the pressing rod passes through the positioning groove. The lower end of the pressing rod slides through the positioning seat. The pressing spring passes through the positioning groove, and its lower end is pressed against the upper end of the positioning seat.

[0020] A rectangular sealing plate is vertically welded to the top surface of the hot melt base. The sealing plate slides into the hot melt frame along its height. The sealing plate seals the gap between the hot melt frame and the hot melt base, preventing molten plastic from contaminating the auxiliary positioning components during the hot melt process. As the hot melt base moves up and down along the hot melt frame, the sealing plate moves along the guide groove within the hot melt frame, acting as a guide during this movement.

[0021] Preferably, the lateral adjustment component includes a lateral pressing section, a lifting plate, and a support plate;

[0022] The support plate is fixed to one end of the transverse extrusion section that extends into the interior of the hot melt frame and extends horizontally; the lifting plate is mounted on the top of the support plate and is used to press the bottom of the hot melt seat firmly from below; the side of the transverse extrusion section that contacts the hot melt seat is an inclined surface, and the longitudinal position of the hot melt seat is adjusted when the transverse extrusion section moves laterally.

[0023] With the above technical solution, a side plate is vertically welded to the top of the inclined end of the transverse extrusion section, and the side plate is parallel to the side wall of the hot melt frame. After the transverse adjustment component is adjusted laterally in the horizontal direction, the side plate is bolted to the outside of the hot melt frame.

[0024] The top surface of the transverse extrusion section is inclined, and the end extending into the interior of the hot melt frame is located at the lower part of the inclined slope. During the transverse movement of the transverse extrusion section, the inclined part of the transverse extrusion section will push up the lower inclined surface of the hot melt seat. Under the extrusion action of the transverse extrusion section, the hot melt seat rises and falls along the height direction of the hot melt frame, and the longitudinal position of the top surface of the hot melt seat is adjusted accordingly.

[0025] One end of the lifting plate is a rectangular block, with a rectangular flat surface at the top. A mounting groove is formed on the upper part of the support plate near the transverse extrusion section. The rectangular block slides along the mounting groove, and its lower end is bolted to the support plate. The flat surface at the top of the rectangular block extends above the support plate and covers it. The flat surface at the top of the rectangular block is bolted to the bottom of the hot melt base. After the hot melt base rises along the hot melt frame, the lifting plate is moved longitudinally and bolted to the bottom of the hot melt base, providing stable support for the edge portion of the hot melt base.

[0026] The upper and lower sides of the support component are bolted to the lifting plate and the support plate, respectively. The support component consists of multiple stacked spring plates, which can be arc-shaped. When supporting the hot melt base, the spring plates deform and press the lifting plate upwards to the bottom of the hot melt base, thus achieving stable support for the hot melt base.

[0027] In this application, the lifting plate is installed at the lower edge of the hot melt base, and can be adjusted according to the longitudinal position of the hot melt base so that the lifting plate can always support the hot melt base in the longitudinal direction, ensuring that the hot melt base remains stable in the longitudinal direction.

[0028] Preferably, the hot pressing mechanism includes a base plate, and a guide rail extending vertically is provided on the side wall of the base plate; under the drive of the driving mechanism, the hot-melt pressing member slides longitudinally along the guide rail.

[0029] The above technical solution includes a drive shaft with a retaining ring at its lower part. A stepper motor drives the drive shaft to move axially, pushing the hot-melt pressing component to slide longitudinally along a guide rail. The guide rail guides the longitudinal movement of the hot-melt pressing component, ensuring accurate pressing onto the plastic part being hot-melted, thus improving the accuracy of the hot-melt processing.

[0030] Preferably, the hot-melt pressing component includes a housing, a pressing plate, an adjusting seat, a partition, a hot-melt metal plate, and a pressing column;

[0031] The partition is installed at the lower end of the outer shell; the pressing plate slides along the height direction inside the outer shell; the pressing column is arranged below the pressing plate and slides vertically through the partition; the hot-melt metal plate is installed at the end of the pressing column that extends to the outside of the outer shell.

[0032] The pressing plate slides along the longitudinal direction of the outer shell and presses the hot-melt metal plate onto the heated plastic part, thereby achieving the hot melting of the plastic part.

[0033] The above technical solution involves a transmission hole at the top of the housing, with an axial limiting cylinder bolted to the inner wall of the top of the housing, covering and axially aligned with the transmission hole. A through hole is located at the bottom of the axial limiting cylinder. The drive shaft passes through the transmission hole and the through hole sequentially along the axial direction. A retaining ring is bolted to the outside of the drive shaft. The retaining ring slides axially within the axial limiting cylinder. Driven by a stepper motor, the drive shaft moves downward along the axial direction, simultaneously causing the retaining ring to move downward along the axial direction. The lower end of the axial limiting cylinder limits the axial movement distance of the retaining ring.

[0034] As the drive shaft moves downward along the axial direction, it pushes a pressing plate. The edge of the pressing plate slides downward along the axial direction within a groove on the inner wall of the housing. The pressing plate slides downward and pushes a pressing column downward, which in turn pushes a hot-melt metal plate onto the plastic being hot-melted.

[0035] The hot-melt metal plate is made of iron and contains a power source. The power source generates heat through heating wires and transfers the heat to the hot-melt metal plate, which then transfers the heat to the plastic part, thus achieving the hot-melt process.

[0036] Preferably, the hot-melt pressing component further includes an adjusting seat sleeved outside the pressing column, the adjusting seat being pressed against the upper side of the partition by the pressing plate in the longitudinal direction.

[0037] With the above technical solution, during the hot-melt processing of plastic parts, the partition is pressed against the top of the hot-melt frame, and the hot-melt metal plate extends into the interior of the hot-melt frame and is pressed longitudinally onto the plastic part, transferring heat to the plastic and completing the hot-melt process. When the pressing plate moves downward, it presses against the top of the adjusting seat.

[0038] Preferably, the adjusting seat includes a support body, and a retractable lifting adjusting column is vertically installed at the edge of the support body, with the top end of the lifting adjusting column extending above the support body; a top plate is provided on the top surface of the lifting adjusting column.

[0039] Through the above technical solution, the lower part of the support body is cylindrical, and the transition part between the upper and lower parts of the support body is an inclined slope. The upper part of the support body extends to the top of the support body in a direction perpendicular to the support body. The lifting adjustment column is rotated a certain length according to the support requirements of the pressing plate. The greater the length of the lifting adjustment column rotated upwards to the top of the support body, the greater the longitudinal distance between the top plate and the partition. This restricts the pressing plate to a position farther from the partition, reduces the length of the pressing column that can extend outside the outer shell, and reduces the distance the hot-melt metal plate presses downwards onto the plastic being hot-melted. This increases the space defined for hot-melt processing between the hot-melt metal plate and the hot-melt seat, reserving a larger hot-melt space for the plastic part during the hot-melt process and reducing the volume requirements after the plastic is hot-melted.

[0040] Conversely, when the lifting adjustment column rotates in the opposite direction, the distance between the hot-melt metal plate and the hot-melt seat is reduced. This leaves a very small hot-melt space for the plastic part during the hot-melt process. The plastic part can only be effectively contained within this adjusted hot-melt space if it is thoroughly hot-melted. In other words, by adjusting the extension length of the lifting adjustment column, the hot-melt space is adjusted, thereby limiting the hot-melt volume of the plastic.

[0041] Preferably, the adjusting seat further includes a spring plate, a clamping member, and rubber pads; multiple rubber pads are stacked and placed inside the internal cavity of the support body, and the rubber pads surround the lower periphery of the lifting adjusting column; a clamping member is provided on the top of the rubber pads, and the upper part of the clamping member presses against the inclined lower side of the lifting adjusting column to achieve support for the lifting adjusting column.

[0042] In the above technical solution, the lower part of the clamping member is a rectangular plate, and the upper part is inclined. The inclined portion of the upper part of the clamping member presses against the side wall of the lifting adjustment column from below, providing upward support for the lifting adjustment column and stably pressing it against the pressing plate. After adjusting the longitudinal position of the lifting adjustment column, the longitudinal position of the inclined portion of the lifting adjustment column is adjusted accordingly. To achieve stable support for the lifting adjustment column, the number of rubber pads can be increased or decreased. By setting an appropriate number of rubber pads, the rubber pads press the clamping member tightly against the inclined side wall of the lifting adjustment column.

[0043] Preferably, a plurality of arc-shaped spring plates are installed inside the clamping member.

[0044] Through the above technical solution, the spring plate deforms after being squeezed, and generates elastic force to push the inclined part of the spring plate onto the lifting adjustment column, thereby achieving stable clamping of the lifting adjustment column.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] The motor drives the conveyor belt, which transports the plastic material placed on it to a carrier on the turntable mechanism. Then, the main drive motor rotates the turntable, moving another carrier to the position corresponding to the output port of the conveyor belt, and the plastic material from the conveyor belt is transported into that carrier. As the main drive motor rotates, each carrier on the turntable is successively filled with plastic material to be heated and melted.

[0047] The main drive motor then rotates, moving the carrier directly beneath the hot pressing mechanism. The drive mechanism uses a linear stepper motor, which drives the hot pressing mechanism vertically downwards a certain distance to the corresponding carrier. The hot pressing mechanism heats the plastic inside the carrier, causing it to melt. A thermometer is located on the lower surface of the hot pressing mechanism to monitor the melting temperature in real time.

[0048] The lower end of the hot pressing mechanism enters the hot melt frame and squeezes the plastic material downwards. The drive mechanism of this application uses a linear stepper motor, which can adjust the distance the hot pressing mechanism moves downwards in a straight line, thereby controlling the degree of squeezing of the plastic material in the carrier by the hot pressing mechanism.

[0049] The plastic to be melted is placed on the hot melt base. Depending on the needs of the plastic's hot melt processing, the lateral adjustment component is moved laterally, either extending into the interior of the hot melt frame or moving a certain distance outwards. As the lateral position of the adjustment component is adjusted, the hot melt base rises or falls vertically within the hot melt frame under the pushing action of the component, thus adjusting the distance between the upper end of the hot melt base and the upper port of the hot melt frame.

[0050] The distance from the upper end of the hot melt base to the upper port of the hot melt frame is the initial hot melt space when the hot melt process begins. After the hot pressing mechanism extends downward into the upper part of the inner cavity of the hot melt frame, the lower end face of the hot pressing mechanism, the top surface of the hot melt base, and the hot melt frame enclose the space for hot melt processing.

[0051] By moving the lateral adjustment component laterally to raise or lower the hot melt seat, the position of the top surface of the hot melt seat is adjusted. The position of the lower end of the hot pressing mechanism is adjusted by the linear stepper motor of the drive mechanism, thereby adjusting the longitudinal dimension of the hot melt processing space and realizing the adjustment of the hot melt processing space.

[0052] After the initial block-shaped plastic parts are placed inside the carrier, the shape and structure of the plastic blocks may be irregular. Even after being heated in the hot melt frame, because not all parts are in direct contact with the hot pressing mechanism, during the heating and melting process, even if the heating temperature is maintained at a certain value for a period of time, there will still be cases where the plastic blocks are not completely melted.

[0053] In this application, by adjusting the longitudinal distance between the hot-melt seat and the hot-pressing mechanism, the volume of the melted plastic is limited to a certain range; that is, the volume of the melted plastic is restricted, requiring that the volume of the melted plastic must meet the set volume. After being melted, the plastic's fluidity and plasticity are enhanced, and the thoroughly melted plastic can be confined within the space defined by the hot-pressing mechanism and the turntable mechanism. In other words, thorough melting of the plastic is achieved through the control of the hot-melt space, improving the hot-melt effect. Attached Figure Description

[0054] The accompanying drawings are provided to further illustrate the invention and form part of the specification. The embodiments of the invention are used together to explain the invention and constitute a limitation thereof.

[0055] Figure 1 This is a perspective view of the multi-station rotary hot melt machine of the present invention.

[0056] Figure 2 This is a front view of the turntable mechanism of the present invention.

[0057] Figure 3 This is a partial cross-sectional view of the vehicle of the present invention.

[0058] Figure 4 For the present invention Figure 3 The figure below is marked with A, indicating a partial enlarged view.

[0059] Figure 5 This is a schematic diagram of the lateral adjustment component of the present invention.

[0060] Figure 6 For the present invention Figure 3 The figure below is marked with a B, indicating a partial enlarged view.

[0061] Figure 7 This is a schematic diagram of the hot pressing mechanism of the present invention.

[0062] Figure 8 This is a partial cross-sectional view of the hot-melt pressing component of the present invention.

[0063] Figure 9 This is a partial cross-sectional view of the adjustment seat of the present invention.

[0064] In the diagram: 1-base; 2-conveyor frame;

[0065] 3-Turntable mechanism; 31-Carrier; 311-Hot melt frame; 312-Hot melt seat; 313-Transverse adjustment component; 314-Support frame; 315-Auxiliary positioning component; 316-Discharge gate; 317-Positioning seat; 318-Sealing plate; 312-Hot melt seat; 313-Transverse adjustment component; 3131-Transverse extrusion section; 3132-Lifting plate; 3133-Support plate; 3134-Side plate; 3135-Bearing component; 314-Support frame; 3141-Base; 3142-Support block; 3143-Telescopic rod; 3144-First nut; 3145-Tightening block; 315-Auxiliary positioning component; 316-Discharge gate; 317-Positioning seat; 318-Sealing plate; 32-Turntable;

[0066] 4-Hot pressing mechanism; 41-Base plate; 42-Guide rail; 43-Hot melt pressing component; 431-Axial limiting cylinder; 432-Outer shell; 433-Pressing plate; 434-Adjusting seat; 4341-Lifting adjusting column; 4342-Top plate; 4343-Spring plate; 4344-Tightening component; 4345-Rubber pad; 4346-Support body; 435-Partition plate; 436-Hot melt metal plate; 437-Pressing column;

[0067] 5-Drive mechanism; 51-Retaining ring; 52-Drive shaft;

[0068] 6-Frame; 7-Output frame; 8-Main drive motor. Detailed Implementation

[0069] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0070] Most existing hot melt equipment only controls the temperature during the hot melt process. However, even if the required temperature is reached, because the plastic material itself is lumpy, some material may not completely melt before it is fully dissolved, resulting in uneven melting. The state of the plastic after hot melt can be controlled by its volume. By controlling the volume of the melted plastic material while controlling the temperature, the hot melt equipment can achieve as much complete melting as possible.

[0071] The multi-station rotary hot melt machine of this embodiment refers to... Figure 1The multi-station rotary hot melt machine includes a base 1, with a frame 6 vertically mounted on the upper edge of the base 1. The upright portion of the frame 6 is a rectangular plate, and a horizontal plate is vertically welded to the upright portion. A drive mechanism 5 is bolted to the horizontal plate. A main drive motor 8 is bolted inside the base 1, which also includes a rotary mechanism 3 and a hot pressing mechanism 4. An output frame 7 is bolted to the edge of the base 1. The output frame 7 is wedge-shaped and has a conveying groove inside. After processing, the hot melt-processed plastic product can be transferred from the rotary mechanism 3 to the output frame 7 and then conveyed out.

[0072] The turntable mechanism 3 is threadedly connected to the top of the output shaft of the main drive motor 8. The turntable mechanism 3 includes a turntable 32, and multiple carriers 31 are bolted to the top surface of the turntable 32. The carriers 31 are used to support the plastic parts that are being heated.

[0073] The hot pressing mechanism 4 is threadedly mounted on the lower end of the drive mechanism 5. The drive mechanism 5 drives the hot pressing mechanism 4 to move downward onto the carrier 31, thereby heating and melting the plastic parts placed inside the carrier 31.

[0074] Reference Figure 2 , Figure 3 The carrier 31 includes a hot melt frame 311, with retractable lateral adjustment members 313 on the lower parts of opposite sides of the hot melt frame 311. A hot melt seat 312 is located inside the hot melt frame 311. When the lower part of the hot melt frame 311 extends or retracts, the lateral adjustment members 313 push the hot melt seat 312 to move axially along the hot melt frame 311, correspondingly adjusting the distance from the top surface of the hot melt seat 312 to the top port of the hot melt frame 311. This distance change accommodates hot melt processing of various thicknesses. The drive mechanism 5 controls the downward movement of the hot pressing mechanism 4 each time, adjusting the thickness of the hot-pressed plastic part. A discharge gate 316 is rotatably installed on one side of the hot melt frame 311 for outputting the plastic part.

[0075] Reference Figure 3 , 4 The carrier 31 includes an auxiliary positioning element 315 and a positioning seat 317. The auxiliary positioning element 315 is vertically disposed on the inner side wall of the hot melt frame 311 and presses the positioning seat 317 downward to the upper part of the edge of the hot melt seat 312. The positioning seat 317 is cylindrical in shape, sealed at the bottom and open at the top.

[0076] When the lateral adjustment member 313 moves horizontally towards the interior of the hot melt frame 311, it pushes the hot melt base 312 upward. After the lateral adjustment member 313 reaches the target position, it is fixed to the hot melt frame 311 with bolts. The lateral adjustment member 313 and the hot melt base 312 are axially fixed together with bolts. The lateral adjustment member 313 is used to adjust the axial position of the hot melt base 312 and to fix the bottom of the hot melt base 312 axially.

[0077] The auxiliary positioning member 315 is pressed downwards onto the upper side of the edge portion of the hot melt base 312, thereby fixing the upper part of the edge portion of the hot melt base 312. The upper and lower parts of the hot melt base 312 are fixed by the auxiliary positioning member 315 and the lateral adjustment member 313, ensuring that the hot melt base 312 is in a stable position during plastic hot melt processing.

[0078] By moving the lateral adjustment component 313, the hot melt seat 312 is pushed to move along the axial direction of the hot melt frame 311 to adjust the longitudinal position of the hot melt seat 312, thereby adjusting the distance between the top surface of the hot melt seat 312 and the upper port of the hot melt frame 311, thereby adjusting the volume defined by the hot melt cavity composed of the hot melt frame 311 and the hot melt seat 312. By adjusting the volume of the hot melt cavity, different hot melt requirements during plastic hot melt processing can be achieved.

[0079] Reference Figure 5 The lateral adjustment component 313 includes a lateral pressing part 3131, a lifting plate 3132, and a support plate 3133. The support plate 3133 is welded to one end of the lateral pressing part 3131 that extends into the interior of the hot melt frame and extends horizontally. The lifting plate 3132 is vertically mounted on top of the support plate 3133 to press the bottom of the hot melt seat 312 firmly from below. The side of the lateral pressing part 3131 that contacts the hot melt seat 312 is an inclined surface, which adjusts the longitudinal position of the hot melt seat 312 when the lateral pressing part 3131 moves laterally.

[0080] After the hot melt base 312 is adjusted to the target position along the longitudinal direction, the lifting plate 3132 is slid along the longitudinal direction so that the lifting plate 3132 is pressed against the bottom of the hot melt base 312, and then the lifting plate 3132 is fixed to the bottom of the hot melt base 312 with bolts. The lifting plate 3132 provides effective support for the bottom of the hot melt base 312.

[0081] The upper and lower sides of the bearing component 3135 are fixed to the lifting plate and the support plate with bolts, respectively. The bearing component 3135 is composed of multiple spring sheets stacked together, and the resulting elastic compressive force acts on the lifting plate 3132, which stably presses the lifting plate 3132 onto the hot melt seat 312, further improving the stability of the bottom support of the hot melt seat 312.

[0082] Reference Figure 6 A support frame 314 is provided at the lower part of the middle position of the hot melt base 312. The support frame 314 includes a base 3141, a support block 3142, a telescopic rod 3143, a first nut 3144, and a tightening block 3145.

[0083] The base 3141 is a horizontally placed distance block. A sliding groove extending along the length direction is recessed in the top of the base 3141, and a rectangular support block 3142 is welded to the middle of the upper side of the base 3141. A telescopic rod 3143 is threaded vertically installed within the support block 3142. A clamping block 3145 slides on the upper side of the base 3141. Both ends of the telescopic rod 3143 are threaded to opposite sides of the two clamping blocks 3145. The end of the clamping block 3145 facing away from the telescopic rod 3143 presses against the hot melt base 312, achieving support and position locking of the hot melt base 312. A first nut 3144 locks the clamping block 3145.

[0084] Reference Figure 7 The hot pressing mechanism 4 includes a base plate 41, on which a guide rail 42 extending vertically is bolted to the side wall of the base plate 41. Under the drive of the driving mechanism 5, the hot-melt pressing member 43 slides longitudinally along the guide rail 42.

[0085] Reference Figure 8 The hot-melt pressing component 43 includes a housing 432, a pressing plate 433, an adjusting seat 434, a partition 435, a hot-melt metal plate 436, and a pressing post 437. The partition 435 is bolted to the lower end of the housing 432. The pressing plate 433 slides within the housing 432 along its height. The pressing post 437 is bolted to the lower side of the pressing plate 433 and slides vertically through the partition 435. The hot-melt metal plate 436 is bolted to the end of the pressing post 437 that extends outside the housing 432. The pressing plate 433 slides longitudinally along the housing 432, pressing the hot-melt metal plate 436 onto the heated plastic part, thus achieving the hot-melt process of the plastic part.

[0086] The drive mechanism 5 drives the transmission shaft 52 to move linearly, causing the retaining ring 51 to slide within the axial limiting cylinder 431. The drive mechanism 5 uses a linear stepper motor, which drives the transmission shaft 52 to move axially a certain distance, and the transmission shaft 52 pushes the pressing plate 433 to slide a certain distance within the housing 432. In this embodiment, the bottom of the limiting cylinder 431 limits the distance the retaining ring 51 can move downward axially. When the limiting cylinder 431 is moved away from the top surface of the housing 432, the distance between the lower end of the limiting cylinder 431 and the top surface of the housing 432 increases, and the retaining ring 51 can move a longer distance axially within the limiting cylinder 431. Correspondingly, the hot melt metal plate 436 can be pushed downward a greater distance, thereby providing a greater extrusion length for the plastic within the hot melt frame 311, achieving a greater degree of hot pressing processing of the plastic.

[0087] Reference Figure 8 The hot-melt pressing component 43 also includes an adjusting seat 434 sleeved on the outside of the pressing column 437. The adjusting seat 434 is pressed against the upper side of the partition 435 in the longitudinal direction by the pressing plate 433.

[0088] Reference Figure 9 The adjusting seat 434 includes a support body 4346, and a lifting adjusting column 4341 is vertically installed at the edge of the support body 4346. The lower part of the lifting adjusting column 4341 is threaded to the interior of the support body 4346, and the top end of the lifting adjusting column 4341 extends above the support body 4346. A top plate 4342 is welded to the top of the lifting adjusting column 4341.

[0089] The adjusting seat 434 also includes a spring plate 4343, a clamping member 4344, and rubber pads 4345. Multiple rubber pads 4345 are stacked and placed within the internal cavity of the support body 4346. A clamping member 4344 is placed on top of the rubber pads 4345, and the upper part of the clamping member 4344 presses against the inclined lower side of the lifting adjusting column 4341, thus supporting the lifting adjusting column. Multiple arc-shaped spring plates 4343 are pressed within the clamping member 4344.

[0090] In this embodiment, the longitudinal support position of the adjustment seat 434 on the pressing plate 433 is adjusted by adjusting the length of the lifting adjustment column 4341 extending to the outside of the support body 4346.

[0091] For example, rotating the lifting adjustment column 4341 outward by one length will limit the pressing plate 433 to a higher position. Consequently, the pressing column 437 and the hot-melt metal plate 436 can move downward by a smaller distance, thus reducing the distance the hot-melt metal plate 436 presses against the plastic and reducing the degree of hot-melt pressing. Conversely, rotating the lifting adjustment column 4341 inward by one length will increase the downward pressing length of the hot-melt metal plate 436 against the plastic, increasing the degree of hot-melt pressing.

[0092] The bottom of the clamping member 4344 is rectangular, and the top is sloping. The sloping part of the clamping member 4344 presses against the sloping side wall of the lower part of the lifting adjustment column 4341, achieving stable support for the bottom of the lifting adjustment column 4341. After the lifting adjustment column 4341 is adjusted, as the lower side wall of the lifting adjustment column 4341 rises, the number of rubber pads 4345 can be increased accordingly, so that the rubber pads 4345 can firmly press the clamping member 4344 against the lifting adjustment column 4341.

[0093] All standard parts used in this invention can be purchased commercially, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here. Content not described in detail in this specification belongs to the prior art known to those skilled in the art. It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A multi-station rotary hot melt machine comprising a base, a vertical frame mounted at the edge of the upper end of the base, a drive mechanism fixed on the frame, a main drive motor mounted in the base, characterized in that It also includes: a turntable mechanism and a hot pressing mechanism; The turntable mechanism is mounted on the top of the main drive motor; the turntable mechanism includes a turntable, and multiple carriers are provided on the top surface of the turntable, the carriers being used to support the plastic parts being melted. The hot pressing mechanism is installed at the lower end of the drive mechanism; the drive mechanism drives the hot pressing mechanism to move downwards onto the carrier to heat and melt the plastic parts placed inside the carrier. The carrier includes a hot melt frame, with retractable lateral adjustment members on the lower parts of opposite sides of the hot melt frame; the hot melt seat slides longitudinally inside the hot melt frame near the lower end; when the lateral adjustment members extend or retract horizontally at the lower part of the hot melt frame, they push the hot melt seat to move axially along the hot melt frame to adjust the distance from the top surface of the hot melt seat to the top port of the hot melt frame, so as to accommodate the hot melt processing of plastic parts of various thicknesses; the driving mechanism controls the downward movement distance of the hot pressing mechanism each time, so as to adjust the thickness of the hot pressing of the plastic part; The hot pressing mechanism includes a base plate, and a guide rail extending vertically is provided on the side wall of the base plate; under the drive of the driving mechanism, the hot melt pressing part slides longitudinally along the guide rail. The hot-melt pressing component includes a housing, a pressing plate, an adjusting seat, a partition, a hot-melt metal plate, and a pressing column; The partition is installed at the lower end of the outer shell; the pressing plate slides along the height direction inside the outer shell; the pressing column is arranged below the pressing plate and slides vertically through the partition; the hot-melt metal plate is installed at the end of the pressing column that extends to the outside of the outer shell. The pressing plate slides along the longitudinal direction of the outer shell and presses the hot-melt metal plate onto the heated plastic part, thereby achieving the hot melting of the plastic part. The hot-melt pressing component also includes an adjusting seat sleeved outside the pressing column, which is pressed against the upper side of the partition by the pressing plate in the longitudinal direction.

2. The multi-station rotary hot melt machine according to claim 1, characterized in that... The carrier includes an auxiliary positioning component and a positioning seat. The auxiliary positioning component is vertically arranged on the inner wall of the hot melt frame and presses the positioning seat downward to the upper side of the edge of the hot melt seat.

3. The multi-station rotary hot melt machine according to claim 2, characterized in that... The lateral adjustment component includes a lateral pressing section, a lifting plate, and a support plate; The support plate is fixed to one end of the transverse extrusion section that extends into the interior of the hot melt frame and extends horizontally; the lifting plate is mounted on the top of the support plate and is used to press the bottom of the hot melt seat firmly from below; the side of the transverse extrusion section that contacts the hot melt seat is an inclined surface, and the longitudinal position of the hot melt seat is adjusted when the transverse extrusion section moves laterally.

4. The multi-station rotary hot melt machine according to claim 1, characterized in that... The adjusting seat includes a support body, and a retractable lifting adjusting column is vertically installed at the edge of the support body, with the top end of the lifting adjusting column extending above the support body; a top plate is provided on the top surface of the lifting adjusting column.

5. The multi-station rotary hot melt machine according to claim 4, characterized in that... The adjusting seat also includes a spring plate, a clamping member, and rubber pads; multiple rubber pads are stacked and placed inside the cavity of the support body; a clamping member is provided on the top of the rubber pads, and the upper part of the clamping member presses against the inclined lower side of the lifting adjusting column to support the lifting adjusting column.

6. The multi-station rotary hot melt machine according to claim 5, characterized in that... Multiple arc-shaped spring plates are installed inside the clamping member.

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