Upper disc device for hosiery knitter

Abstract

The utility model discloses an upper disc device for a hosiery knitter, and aims to solve the technical problems that in the weaving process of the hosiery knitter, thread winding is not prone to occurring, shuttle changing is fast, threading is convenient, alarming is timely, and heels are prevented from not eating yarn. The upper disc device for the hosiery knitter comprises an upper disc main body, the upper disc main body is provided with a main shuttle assembly, a rubber string shuttle assembly, a plaiting shuttle assembly, a trigger type alarm and a needle opener, the upper disc main body is further provided with an assembly for preventing a heel from not eating yarn, and the assembly for preventing the heel from not eating yarn comprises an air cylinder horizontally embedded in the upper disc main body. The front and back inlet and outlet axes of the ejector rod of the cylinder are tangent to the knitting needle moving track of the hosiery machine needle cylinder, and the ejector rod is matched with a knitting needle hook to open a needle latch when the ejector rod of the cylinder is ejected; the trigger type alarm gives out alarm of broken stitches, alarm of closed needle latches and needle latch upturning of knitted heels and alarm of closed needle latches and needle latch upturning of knitted sock legs through different installation positions.

Description

Technical Field

[0001] The utility model relates to the technical field of sock knitting, in particular to an upper plate device for a sock knitting machine. Background Art

[0002] The existing upper plate device used in sock knitting includes 1 set of main shuttle components 54, 1 set of elastic band shuttle components 53, 6 sets of feeding yarn shuttle components 52, 1 set of direct contact type broken needle foot alarm, 1 set of elastic band needle opener, 1 set of starting opening needle opener with direct contact type alarm, butterfly door components 50, upper steel rings, and upper plate main body. The existing upper plate device is as Figures 13 - 19 shown.

[0003] The schematic diagram of the non-yarn feeding station of the elastic band shuttle component 53 in the existing upper plate device is as Figure 15 shown. In the non-yarn feeding state, the elastic band shuttle hole plate 59 is located outside the upper end of the knitting needle 60. The yarn 58 is pulled by the elastic band shuttle and crosses the knitting needle. When the yarn is slack, the yarn is easily eaten more by the knitting needle, resulting in yarn entanglement and needle jamming.

[0004] The schematic diagram of the non-yarn feeding station of the feeding yarn shuttle component 52 in the existing upper plate device is as Figure 16 shown. In the non-yarn feeding state, the feeding yarn shuttle hole 61 is located outside the upper end of the knitting needle 60. The yarn is pulled by the feeding yarn shuttle and crosses the knitting needle. When the yarn is slack, the yarn is easily eaten more by the knitting needle, resulting in yarn entanglement and needle jamming. The feeding yarn shuttle component includes 3 feeding yarn shuttles, and the feeding yarn shuttles are made of metal with a relatively heavy self-weight. When 3 feeding yarn shuttles are required for rapid switching during knitting, there are significant restrictions on the switching speed and frequency.

[0005] The working schematic diagram of the direct contact type broken needle foot alarm 56 in the existing upper plate device is as Figure 19 shown. After the knitting needle breaks its needle foot, the knitting needle 60 cannot hide the needle through the presser cam, but rotates with the needle cylinder and touches the probe 65 of the direct contact type broken needle foot alarm, thereby forming a circuit broken needle signal. When there is oil stain or fluff attached to the surface of the knitting needle or the probe, resulting in insulation, the circuit broken needle signal cannot be formed, leading to the non-alarm of the direct contact type broken needle foot alarm.

[0006] The starting opening needle opener 55 in the existing upper plate device has a direct contact type alarm function, and its working schematic diagram is as Figure 17 shown. When the knitting needle tongue is closed, the knitting needle with the closed needle tongue rotates with the needle cylinder and drives the opening needle hook of the starting opening needle opener 55 to swing. The opening needle hook 62 synchronously drives the alarm induction block to swing. When the alarm induction block 63 touches the alarm spring 64, a circuit closed needle tongue alarm signal is formed. When there is oil stain or fluff attached to the surface of the alarm induction block or the alarm spring, resulting in insulation, the circuit closed needle tongue alarm signal cannot be formed, leading to the non-alarm of the starting opening needle opener with a closed needle tongue. There is also an elastic band needle opener 57 on the side of the starting opening needle opener 55. The alarm induction block 63 is also controlled by the air pressure of the air nozzle 66.

[0007] The existing butterfly door assembly of the upper plate device, the structural schematic diagram is as Figure 18 shown, which is the structural form of a butterfly-shaped double door. When there is a front-back dislocation of the butterfly door, it is easy to cause the knitting heel to have a crooked needle tongue; when the butterfly door is not closed, it is easy to cause the knitting heel to have a missed stitch; the space structure of this butterfly door assembly is relatively bulky, occupying space and at the same time blocking the line of sight of the main shuttle threading the yarn, bringing great inconvenience to the main shuttle threading the yarn.

[0008] The existing upper plate main body 51 of the upper plate device, the structural schematic diagram is as Figure 18 shown, which does not have a wire groove, resulting in the exposure of the air pipe and wire harness, making the appearance messy. At the same time, the surface of the air pipe and wire harness is easy to accumulate dust, lint, and oil stains, which can cause the air pipe and wire harness to age easily and pose a potential safety hazard of fire. In view of this, the utility model inventor of this case has conducted in-depth research on the above problems, and thus this case has been produced. Utility Model Content

[0009] The purpose of the present utility model is to provide an upper plate device for a sock knitting machine that is not prone to wire entanglement, has fast shuttle change, convenient threading, timely alarm, high safety, and can prevent the heel from not eating yarn, aiming at the defects and deficiencies of the prior art.

[0010] To achieve the above purpose, the present utility model provides an upper plate device for a sock knitting machine, which includes an upper plate main body. The upper plate main body is installed with a main shuttle assembly, an elastic band shuttle assembly, a tuck-in shuttle assembly, a trigger type alarm, and a needle opener. The upper plate main body is also installed with a component for preventing the heel from not eating yarn. The component for preventing the heel from not eating yarn includes a cylinder horizontally embedded in the upper plate main body. The front-back movement axis of the top rod of the cylinder is tangent to the movement track of the knitting needles of the sock knitting machine cylinder. When the top rod of the cylinder ejects, the top rod cooperates with the knitting needle hook to open the needle tongue, so as to prevent the needle tongue of the knitting needle for the heel from not eating yarn from turning up. The structure is simple and the installation position is concealed, without any spatial impact on the main shuttle assembly threading the yarn. The trigger type alarm gives an alarm for broken needle feet through different installation positions, an alarm for the closed needle tongue and the turned-up needle tongue of the knitting heel, and an alarm for the closed needle tongue and the turned-up needle tongue of the knitting sock tube. The trigger type alarm realizes the alarm performance of various states and functions of the knitting needles through different installation positions, improving the safety of sock knitting.

[0011] The described trigger alarm includes an alarm housing. An induction spacer and a spring piece are installed inside the alarm housing. The induction spacer is connected to a probe, and a reset spring is sleeved on the outer periphery of the probe. The reset spring is located between the alarm housing and the induction spacer. The spring piece is a horizontally installed U-shaped spring piece. During the process of the probe driving the induction spacer to move, the horizontal top surface of the induction spacer cooperates with the horizontal plane of the U-shaped spring piece, changing the horizontal top surface of the induction spacer from an inclined state to a horizontal state. When the horizontal top surface of the induction spacer is in an inclined state, the probe is located beside the positioning rod on the outer side of the alarm housing, and the reset spring is in a reset state. When the horizontal top surface of the induction spacer is in a horizontal state, the probe is located at the top of the positioning rod on the outer side of the alarm housing. The probe and the positioning rod are on the same axis, and the reset spring is in a compressed state. This type of trigger alarm ensures the accuracy and service life of the alarm by changing the position of the induction spacer and completing the movement inside the alarm housing, and will not be affected by dust accumulation, lint accumulation, or oil stain accumulation.

[0012] The described trigger alarm includes a first trigger alarm. The alarm signal of the first trigger alarm is located inside the enclosed alarm. When a knitting needle breaks its foot, the knitting needle cannot hide the needle through the presser cam, but rotates with the needle cylinder and touches the probe of the first trigger alarm. The probe disengages from the positioning rod and is located beside the positioning rod. Under the action of the reset spring, the horizontal top surface of the induction spacer moves obliquely and touches the induction piece connected to the signal wire, realizing the broken needle foot alarm.

[0013] The described trigger alarm includes a second trigger alarm. The alarm signal of the second trigger alarm is located inside the enclosed alarm, and is used for the alarm of the closed needle tongue and the turned-up needle tongue for knitting the heel. When a knitting needle has a closed needle tongue, the needle tongue touches the probe. The probe disengages from the positioning rod and is located beside the positioning rod. Under the action of the reset spring, the horizontal top surface of the induction spacer moves obliquely and touches the induction piece connected to the signal wire, realizing the alarm of the closed needle tongue in the circuit; when the knitting does not pick up the yarn as instructed to form a loop, there is no loop to open the needle tongue, resulting in the turned-up needle tongue. The turned-up needle tongue touches the probe, and the probe disengages from the positioning rod. Under the action of the reset spring, the probe drives the induction spacer inside the enclosed alarm to touch the induction piece connected to the signal wire, realizing the alarm of the turned-up needle tongue in the circuit.

[0014] The described trigger alarm includes a third trigger alarm. The path alarm signal of the third trigger alarm is located inside the enclosed alarm and is used for alarming when the latch of the knitting needle for knitting the sock tube closes or the latch turns up. When the latch of the knitting needle for knitting the sock tube closes, the latch touches the probe, and the probe disengages from the positioning rod and is located on the side of the positioning rod. Under the action of the return spring, the horizontal top surface of the induction sleeve tilts and moves to touch the induction piece connected to the signal wire, realizing the path closed-latch alarm. When the sock tube knitting does not pick up the yarn as commanded to form a loop, there is no loop to open the latch, resulting in the latch turning up. The turned-up latch touches the probe, and the probe disengages from the positioning rod. Under the action of the return spring, the probe drives the induction sleeve inside the enclosed alarm to touch the induction piece connected to the signal wire, realizing the path latch-up alarm.

[0015] When the elastic shuttle component is in the non-yarn-feeding state, the elastic shuttle hole is located inside the upper end of the knitting needle. The yarn is pulled by the elastic shuttle and is located inside the upper end of the knitting needle. When the yarn is slack, the yarn will not be picked up more by the knitting needle, thus avoiding yarn entanglement and needle jamming.

[0016] When the tuck-in shuttle component is in the non-yarn-feeding state, the tuck-in shuttle hole is located inside the upper end of the knitting needle. The yarn is pulled by the tuck-in shuttle and is located inside the upper end of the knitting needle. When the yarn is slack, the yarn will not be picked up more by the knitting needle, thus avoiding yarn entanglement and needle jamming. The tuck-in shuttle component includes 3 split tuck-in shuttles with adjustable lengths. The tuck-in shuttle is a plastic product with a lightweight design and a relatively light self-weight. When 3 tuck-in shuttles are required for rapid switching during knitting, the switching speed and frequency are greatly improved.

[0017] The described upper plate main body is an integrally formed structure with a wire groove. The upper plate main body is equipped with 1 set of main shuttle components, 1 set of elastic shuttle components, 6 sets of tuck-in shuttle components, 3 sets of trigger alarms, 1 set of elastic latch opener, 1 set of starting latch opener, and the air pipes and wire harnesses among them are not exposed and are covered by a dust-proof cover plate. The dust-proof cover plate is connected to the upper plate main body, which not only prevents dust and lint from accumulating on the surfaces of the air pipes and wire harnesses but also further strengthens the rigidity of the upper plate to a certain extent. The overall shuttle changing is fast and the threading is convenient.

[0018] A threading alarm method for an upper plate device of a sock knitting machine includes the following steps:

[0019] Step 1: When the sock knitting machine needle cylinder starts to knit the sock tube and the heel, the main shuttle component, elastic shuttle component, and tuck-in shuttle component cooperate with the latch opener to complete the knitting of the sock tube and the heel of the sock.

[0020] Step 2: During the sock tube knitting process:

[0021] When the elastic shuttle component is in the non-yarn-feeding state, the elastic shuttle hole is located inside the upper end of the knitting needle. The yarn is pulled by the elastic shuttle and is located inside the upper end of the knitting needle.

[0022] When the plating shuttle component is in the non-yarn-feeding state, the plating shuttle hole is located inside the upper end of the knitting needle, and the yarn is pulled by the plating shuttle and is located inside the upper end of the knitting needle.

[0023] The first trigger alarm is located at the upper end of the hidden needle in the left corner and is used for broken needle foot alarm.

[0024] The third trigger alarm is located at the upper end of the starting opening needle hook and is used for the alarm of closing the needle tongue and the needle tongue turning up during the knitting of the sock tube.

[0025] Step 3: During the knitting of the sock heel:

[0026] The second trigger alarm is located at the rear side of the upper end of the left pressing needle and is used for the alarm of closing the needle tongue and the needle tongue turning up during the knitting of the heel.

[0027] Prevent the ejector rod of the cylinder of the component for preventing the heel from not feeding yarn from moving back and forth in an axis tangent to the running track of the knitting needles of the sock machine needle cylinder. When the ejector rod of the cylinder ejects, the ejector rod cooperates with the needle hook of the knitting needle to prevent the needle tongue of the knitting needle for preventing the heel from not feeding yarn from turning up. The position where the ejector rod cooperates with the needle hook of the knitting needle does not interfere with the threading of the main shuttle component.

[0028] Adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0029] 1. The component for preventing the heel from not feeding yarn is composed of a cylinder horizontally embedded in the upper disc body. The front-back movement axis of the ejector rod of the cylinder is tangent to the running track of the knitting needles of the sock machine needle cylinder. When the ejector rod of the cylinder ejects, the ejector rod cooperates with the needle hook of the knitting needle to open the needle tongue, so as to prevent the needle tongue of the knitting needle for preventing the heel from not feeding yarn from turning up. The structure is simple and the installation position is hidden, and there is no impact on the threading space of the main shuttle component.

[0030] 2. The trigger alarm performs broken needle foot alarm, alarm for closing the needle tongue and the needle tongue turning up during the knitting of the heel, and alarm for closing the needle tongue and the needle tongue turning up during the knitting of the sock tube through different installation positions. The trigger alarm realizes the alarm performance of multiple states and multiple functions of the knitting needle through different installation positions, improving the safety of sock knitting. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 is a three-dimensional structural schematic diagram of an upper disc device for a sock knitting machine according to the present utility model;

[0033] Figure 2 is an exploded installation structural schematic diagram of an upper disc device for a sock knitting machine according to the present utility model;

[0034] Figure 3 is a schematic structural diagram of the cooperation between the rubber band shuttle component and the knitting needle in the present utility model;

[0035] Figure 4 is a schematic structural diagram of the cooperation between the plating shuttle component and the knitting needle in the present utility model;

[0036] Figure 5 is a schematic structural diagram of the working state of the first trigger type alarm in the present utility model;

[0037] Figure 6 is a schematic structural diagram of the working state of the second trigger type alarm in the present utility model;

[0038] Figure 7 is Figure 6 an enlarged structural diagram at position A in;

[0039] Figure 8 is a schematic structural diagram of the working state of the third trigger type alarm in the present utility model;

[0040] Figure 9 is Figure 8 an enlarged structural diagram at position B in;

[0041] Figure 10 is a schematic structural diagram of the working state of the component for preventing the heel from not taking yarn in the present utility model;

[0042] Figure 11 is a schematic exploded installation structure diagram of the upper plate main body in the present utility model;

[0043] Figure 12 is a three-dimensional structural diagram of the trigger type alarm in the present utility model;

[0044] Figure 13 is a three-dimensional structural diagram of the upper plate device in the prior art;

[0045] Figure 14 is a schematic exploded installation structure diagram of the upper plate device in the prior art;

[0046] Figure 15 is a schematic structural diagram of the cooperation between the rubber band shuttle component and the knitting needle in the prior art;

[0047] Figure 16 is a schematic structural diagram of the cooperation between the plating shuttle component and the knitting needle in the prior art;

[0048] Figure 17 is a three-dimensional structural diagram of the starting mouth needle opener in the prior art;

[0049] Figure 18 is a three-dimensional structural diagram of the upper plate main body in the prior art;

[0050] Figure 19 is a three-dimensional structural diagram of the direct contact type broken needle foot alarm in the prior art. Detailed implementation manners

[0051] The following clearly and completely describes the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0052] As Figures 1 - 12 shown, an upper disk device for a hosiery machine includes an upper disk main body 8, on which a main shuttle assembly 1, an elastic band shuttle assembly 9, a feeding yarn shuttle assembly 6, a trigger type alarm, and a needle opener 4 are installed. The upper disk main body 8 is further installed with a component for preventing the heel from not catching the yarn. The component for preventing the heel from not catching the yarn includes a cylinder 3 horizontally embedded in the upper disk main body 8. The front and rear movement axis of the ejector rod 38 of the cylinder 3 is tangent to the running track of the knitting needles of the hosiery machine cylinder. When the ejector rod 38 of the cylinder 3 ejects, the ejector rod cooperates with the needle hook of the knitting needle 12 to open the needle tongue. The trigger type alarm performs broken needle foot alarm, closed needle tongue and needle tongue turned-up alarm for knitting the heel, and closed needle tongue and needle tongue turned-up alarm for knitting the sock tube through different installation positions. The cylinder 3 is embedded and installed in the installation groove 39 of the upper disk main body 8.

[0053] The trigger type alarm includes an alarm housing 46. An induction spacer 41 and a spring piece 47 are installed in the alarm housing 46. The induction spacer 41 is connected to a probe 45. A return spring 42 is sleeved on the outer periphery of the probe 45. The return spring 42 is located between the alarm housing 46 and the induction spacer 41. The spring piece 47 is a horizontally installed U-shaped spring piece 47. During the process of the probe 45 driving the induction spacer 41 to move, the horizontal top surface of the induction spacer 41 cooperates with the horizontal plane of the U-shaped spring piece, changing the horizontal top surface of the induction spacer 41 from an inclined state to a horizontal state. When the horizontal top surface of the induction spacer 41 is in an inclined state, the probe 45 is located beside the positioning rod 44 on the outer side of the alarm housing 46, and the return spring 42 is in a reset state. When the horizontal top surface of the induction spacer 41 is in a horizontal state, the probe 45 is located at the top of the positioning rod 44 on the outer side of the alarm housing 46. The probe 45 and the positioning rod 44 are on the same axis, and the return spring 42 is in a compressed state.

[0054] The trigger type alarm includes a first trigger type alarm 2. The path alarm signal of the first trigger type alarm is located in a closed alarm. When a knitting needle breaks a needle foot, the knitting needle cannot hide the needle through the presser cam, but rotates with the cylinder and touches the probe 45 of the first trigger type alarm. The probe 45 disengages from the positioning rod 44 and is located beside the positioning rod 44. Under the action of the return spring 42, the horizontal top surface of the induction spacer 41 moves obliquely and touches the induction piece connected to the signal line, realizing the broken needle foot alarm. The working state of the first trigger type alarm 2 is as Figure 5In the first working state shown, the first working state probe 22 is located at the top of the first working state positioning rod 21. At this time, the broken needle alarm is not triggered. As the first working state knitting needle 16 rotates, the first working state probe 22 is toggled to the position of the second working state probe 19. The second working state probe 19 is located on the side of the first working state positioning rod 21, disengages from the knitting needle 18 in the second working state, and triggers the broken needle alarm.

[0055] The trigger alarm includes a second trigger alarm 5. The path alarm signal of the second trigger alarm is located inside the enclosed alarm and is used for the alarm of the closed needle tongue and the upturned needle tongue for knitting the heel. When the knitting needle has a closed needle tongue, the needle tongue touches the probe 45. The probe 45 disengages from the positioning rod 44 and is located on the side of the positioning rod 44. Under the action of the return spring 42, the horizontal top surface of the induction sleeve 41 tilts and moves to touch the induction piece connected to the signal line, realizing the path closed needle tongue alarm. When the knitting does not pick up the yarn as instructed to form a loop, there is no loop to open the needle tongue, resulting in the upturned needle tongue. The upturned needle tongue touches the probe 45. The probe 45 disengages from the positioning rod 44. Under the action of the return spring 42, the probe drives the induction sleeve in the enclosed alarm to touch the induction piece connected to the signal line, realizing the path upturned needle tongue alarm. The working state of the second trigger alarm 5 is as Figure 6 In the third working state shown, the third working state probe 29 is located at the top of the positioning rod 21. At this time, the broken needle alarm is not triggered. When knitting the heel, the third working state probe 29 needs to rotate left and right and forward and backward. As the third working state knitting needle 30 rotates to the left, the third working state knitting needle 30 is toggled to the position of the fourth working state probe 27. The fourth working state probe 27 is located on the side of the positioning rod 21, disengages from the third working state knitting needle 30, and triggers the closed needle tongue alarm. As the third working state knitting needle 30 rotates to the right, the third working state knitting needle 30 is toggled to the position of the fifth working state probe 25. The fifth working state probe 25 is located on the side of the positioning rod 21, disengages from the third working state knitting needle 30, and triggers the closed needle tongue alarm. Of course, it can also trigger the upturned needle tongue alarm.

[0056] The trigger alarm includes a third trigger alarm 7. The path alarm signal of the third trigger alarm is located inside the enclosed alarm and is used for the alarm of the closed needle tongue and the upturned needle tongue for knitting the sock tube. When the knitting needle for knitting the sock tube has a closed needle tongue, the needle tongue touches the probe 45. The probe 45 disengages from the positioning rod 44 and is located on the side of the positioning rod 44. Under the action of the return spring 42, the horizontal top surface of the induction sleeve 41 tilts and moves to touch the induction piece connected to the signal line, realizing the path closed needle tongue alarm. When the knitting for the sock tube does not pick up the yarn as instructed to form a loop, there is no loop to open the needle tongue, resulting in the upturned needle tongue. The upturned needle tongue touches the probe 45. The probe 45 disengages from the positioning rod 44. Under the action of the return spring 42, the probe drives the induction sleeve in the enclosed alarm to touch the induction piece connected to the signal line, realizing the path upturned needle tongue alarm. The working state of the third trigger alarm 7 is asFigure 8 In the sixth working state shown, the probe 32 is located at the top of the positioning rod 21. At this time, there is no alarm for triggering the tongue of the knitting needle to turn up. When knitting the stocking tube, the probe 32 in the sixth working state needs to rotate left and right in both forward and reverse directions. As the probe 32 in the sixth working state rotates to the left, the knitting needle 33 in the sixth working state is toggled to the position of the probe 34 in the seventh working state. The probe 34 in the seventh working state is located on the side of the positioning rod 21 and disengages from the knitting needle 31 in the seventh working state and triggers the alarm for the tongue of the knitting needle to turn up. As the probe 32 in the sixth working state rotates to the right, the knitting needle 33 in the sixth working state is toggled to the position of the probe 35 in the eighth working state. The probe 35 in the eighth working state is located on the side of the positioning rod 21 and disengages from the knitting needle 36 in the seventh working state and triggers the alarm for the tongue of the knitting needle to turn up. Of course, it can also trigger the alarm for closing the tongue of the knitting needle.

[0057] To prevent overfeeding of the yarn, when the elastic shuttle assembly 9 is in the non-yarn-feeding state, the elastic shuttle hole 13 is located inside the upper end of the knitting needle 12. The yarn 14 is pulled by the elastic shuttle and is located inside the upper end of the knitting needle. When the yarn is slack, the yarn will not be overfed by the knitting needle, thus avoiding winding the yarn and jamming the needle.

[0058] To prevent overfeeding of the yarn, when the tuck-in shuttle assembly 6 is in the non-yarn-feeding state, the tuck-in shuttle hole 15 is located inside the upper end of the knitting needle 12. The yarn 14 is pulled by the tuck-in shuttle and is located inside the upper end of the knitting needle. When the yarn is slack, the yarn will not be overfed by the knitting needle, thus avoiding winding the yarn and jamming the needle.

[0059] The upper disc body 8 is an integrally formed structure with a wire groove and a connecting seat 20. The upper disc body 8 is equipped with 1 set of main shuttle assembly, 1 set of elastic shuttle assembly, 6 sets of tuck-in shuttle assemblies, 3 sets of trigger-type alarms, 1 set of elastic needle opener, 1 set of starting needle opener, and the air pipes and wire harnesses between them are not exposed and are covered by the dust-proof cover plate 10. The dust-proof cover plate is connected to the upper disc body 8. The upper steel ring 11 is installed inside the upper disc body 8. The tuck-in shuttle assembly is connected to the mounting seat 17, and the main shuttle assembly is connected to the main shuttle mounting seat 23.

[0060] A threading alarm method for the upper disc device of a sock knitting machine includes the following steps:

[0061] Step 1: When the needle cylinder of the sock knitting machine starts to knit the stocking tube and the heel, the main shuttle assembly, the elastic shuttle assembly, and the tuck-in shuttle assembly cooperate with the needle opener to complete the knitting of the sock tube and the heel of the sock;

[0062] Step 2: During the knitting process of the stocking tube:

[0063] When the elastic shuttle assembly is in the non-yarn-feeding state, the elastic shuttle hole is located inside the upper end of the knitting needle, and the yarn is pulled by the elastic shuttle and is located inside the upper end of the knitting needle;

[0064] When the tuck-in shuttle assembly is in the non-yarn-feeding state, the tuck-in shuttle hole is located inside the upper end of the knitting needle, and the yarn is pulled by the tuck-in shuttle and is located inside the upper end of the knitting needle;

[0065] The first trigger alarm is located at the upper end of the needle hiding part of the left corner, and is used for broken needle foot alarm;

[0066] The third trigger alarm is located at the upper end of the starting needle hook, and is used for the alarm of closing the needle tongue and turning up the needle tongue during the knitting of the sock tube;

[0067] Step 3: During the knitting of the sock heel:

[0068] The second trigger alarm is located at the rear side of the upper end of the left press needle, and is used for the alarm of closing the needle tongue and turning up the needle tongue during the knitting of the sock heel;

[0069] Prevent the front and back movement axis of the ejector rod 38 of the cylinder 3 of the component that prevents the sock heel from not eating the yarn from being tangent to the running track of the knitting needles of the sock machine needle cylinder. When the ejector rod 38 of the cylinder 3 ejects, the ejector rod cooperates with the needle hook of the knitting needle 12 to prevent the needle tongue of the knitting needle that does not eat the yarn at the sock heel from turning up. The position where the ejector rod cooperates with the needle hook of the knitting needle 12 does not interfere with the yarn threading of the main shuttle component 1.

[0070] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An upper disk device for a hosiery machine, comprising an upper disk body (8), the upper disk body (8) being equipped with a main shuttle assembly (1), an elastic shuttle assembly (9), a yarn adding shuttle assembly (6), a trigger alarm, and a needle opener, characterized in that: The trigger alarm can be used to generate a broken stitch alarm, a closed needle tongue or a needle tongue turning up alarm for knitting a heel, or a closed needle tongue or a needle tongue turning up alarm for knitting a sock, through different installation positions. The trigger alarm comprises an alarm housing (46), an inductive spacer (41) and a spring sheet (47) are installed in the alarm housing (46), the inductive spacer (41) is connected to a probe (45), the outer periphery of the probe (45) is sleeved with a reset spring (42), the reset spring (42) is located between the alarm housing (46) and the inductive spacer (41), the spring sheet (47) is a horizontally installed U-shaped spring sheet (47), and the probe (45) drives the inductive spacer (41) to move. During the movement of the sleeve (41), the horizontal top surface of the sensing sleeve (41) cooperates with the horizontal surface of the U-shaped spring sheet, so that the horizontal top surface of the sensing sleeve (41) changes from an inclined state to a horizontal state. When the horizontal top surface of the sensing sleeve (41) is in the inclined state, the probe (45) is located on the side of the positioning rod (44) outside the alarm housing (46), and the reset spring (42) is in the reset state. When the horizontal top surface of the sensing sleeve (41) is in the horizontal state, the probe (45) is located on the top of the positioning rod (44) outside the alarm housing (46), the probe (45) and the positioning rod (44) are located on the same axis, and the reset spring (42) is in a compressed state.

2. The upper disk device for a hosiery knitting machine according to claim 1, characterized in that: The upper plate body (8) is also provided with a component for preventing the heel from not eating the yarn. The component for preventing the heel from not eating the yarn comprises a cylinder (3) horizontally embedded in the upper plate body (8). The front and rear entry and exit axis of the push rod (38) of the cylinder (3) is tangent to the running track of the knitting needle of the needle cylinder of the sock machine. When the push rod (38) of the cylinder (3) is pushed out, the push rod cooperates with the needle hook of the knitting needle (12) to open the needle tongue.

3. The upper disk device for a hosiery knitting machine according to claim 1, characterized in that: The trigger alarm comprises a first trigger alarm, wherein an alarm signal of the first trigger alarm passage is located in a closed alarm. When a needle breaks a stitch, the needle cannot be hidden by the needle pressing triangle, but touches a probe (45) of the first trigger alarm as the needle cylinder rotates. The probe (45) is separated from the positioning rod (44) and is located on the side of the positioning rod (44). Under the action of the reset spring (42), the horizontal top surface of the sensing sleeve (41) moves tiltedly to touch a sensing sheet connected to the signal line, thereby realizing a needle break alarm.

4. The upper disk device for a hosiery knitting machine according to claim 1, characterized in that: The trigger alarm comprises a second trigger alarm, the path alarm signal of the second trigger alarm is located in the closed alarm, and is used for knitting heel closed needle tongue and needle tongue flipping alarm. When the knitting needle closed needle tongue occurs, the needle tongue touches the probe (45), the probe (45) is separated from the positioning rod (44) and is located on the side of the positioning rod (44). Under the action of the reset spring (42), the horizontal top surface of the sensing sleeve (41) is tilted and moves to touch the sensing sheet connected to the signal line, thereby realizing the path closed needle tongue alarm; when the knitting fails to eat the yarn to form a coil according to the instruction, there is no coil to open the needle tongue, thereby causing the needle tongue to flip up, and the flipped needle tongue touches the probe (45), the probe (45) is separated from the positioning rod (44), and under the action of the reset spring (42), the probe drives the sensing sleeve in the closed alarm to touch the sensing sheet connected to the signal line, thereby realizing the path needle tongue flipping alarm.

5. The upper disk device for a hosiery knitting machine according to claim 1, characterized in that: The trigger alarm comprises a third trigger alarm, wherein the path alarm signal of the third trigger alarm is located in the closed alarm and is used for alarming the closing of the needle tongue and the upward turning of the needle tongue when knitting the socks. When the closing of the needle tongue of the knitting needle of the socks occurs, the needle tongue touches the probe (45), the probe (45) separates from the positioning rod (44) and is located on the side of the positioning rod (44). Under the action of the reset spring (42), the horizontal top surface of the sensing sleeve (41) moves obliquely to touch the sensing sheet connected to the signal line, thereby realizing the path closing needle tongue alarm; when the socks are knitted without eating the yarn to form a coil according to the instruction, there is no coil to open the needle tongue, thereby causing the needle tongue to turn upward, and the upward turned needle tongue touches the probe (45), the probe (45) separates from the positioning rod (44), and under the action of the reset spring (42), the probe drives the sensing sleeve in the closed alarm to touch the sensing sheet connected to the signal line, thereby realizing the path needle tongue upward turning alarm.

6. The upper disk device for a hosiery knitting machine according to claim 1, characterized in that: The upper plate body (8) is an integrally formed structure having a wire groove, and is equipped with a set of main shuttle components, a set of rubber shuttle components, 6 sets of yarn adding shuttle components, 3 sets of trigger alarms, a set of rubber needle openers, a set of opening needle openers, and air pipes and wire harnesses between them are not exposed and are covered by dust cover plates, and the dust cover plates are connected to the upper plate body (8).

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