Semi-dipped glove production line and semi-dipped glove dipping method

Abstract

The application relates to the glove manufacturing technical field, in particular to a semi-dip-gum glove production line and a semi-dip-gum glove dipping method. When a hand mold reaches a first position upstream of a dipping chain wheel, a liftable glue tank starts to rise; when the hand mold moves to the lowest point of the dipping chain wheel, the liftable glue tank is located at the highest point; in the process that the hand mold moves from the first position to the lowest point of the dipping chain wheel, the hand mold contacts the liquid surface in the liftable glue tank in the rising state at a preset dipping angle; the dipping chain wheel guides the hand mold corresponding to the chain segment engaged with the dipping chain wheel to move upwards along with the turning of the chain segment, and the hand mold turns downwards at the fingertips while moving upwards to separate from the liquid surface in the liftable glue tank in the falling state at a preset dipping angle without dripping glue. In this way, the glue dripping and the rotation of the homogenizer are not needed; the production line structure is simpler, the glue tank size can be reduced, the glue liquid reserve is reduced, the land occupation is smaller, and the production cost is lower.

Description

Technical Field

[0001] This invention relates to the field of glove manufacturing technology, and in particular to a semi-impregnated glove production line and a method for impregnating semi-impregnated gloves with adhesive. Background Technology

[0002] Gloves are divided into fully rubber-impregnated gloves and partially rubber-impregnated gloves. Fully rubber-impregnated gloves have rubber impregnation on the palm and back of the hand up to the wrist. Partially rubber-impregnated gloves have rubber impregnation on the palm but not on the back of the hand to allow for ventilation.

[0003] The hand mold installation methods for fully rubber-impregnated gloves and semi-rubber-impregnated gloves are completely different during production. For fully rubber-impregnated gloves, the hand mold is suspended at the impregnation station with the fingertips pointing directly downwards, allowing both the palm and back of the hand to be immersed in the glue bath. The production line for fully rubber-impregnated gloves uses a single conveyor chain, with the hand molds suspended at intervals along the chain's extension. For semi-rubber-impregnated gloves, the hand mold is positioned with the palm facing downwards at the impregnation station, allowing the palm to be immersed in the glue bath while the back of the hand remains away from the liquid surface. The production line for semi-rubber-impregnated gloves includes two spaced chains, two sprocket sets that mesh one-to-one with the two chains to guide their synchronous movement, a hand mold rod connected between the two chains, and at least one hand mold suspended from the hand mold rod. The hand mold is oriented with the palm facing outwards and the back of the hand facing inwards (when moving to the impregnation station, the palm faces downwards and the back of the hand faces upwards).

[0004] In the traditional dipping process for semi-dipped gloves, due to the large palm area, a significant amount of adhesive is carried away during separation from the adhesive solution. Therefore, traditional dipping steps require subsequent dispensing and homogenization steps. To address this, Chinese invention patent application CN113427689A proposes a method using a guide component on the frame to direct the chain, allowing the hand mold to gradually leave the dipping tank at a constant height with a laterally inclined arrangement. The surface tension of the adhesive ensures that a suitable amount of adhesive remains on the glove, eliminating the need for dispensing. While CN113427689A eliminates the dispensing step, it requires a larger production space to accommodate the guide component, and the glove's entry and exit paths from the adhesive solution are both longer, necessitating a longer dipping tank, more adhesive reserves, and higher production costs. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a semi-impregnated glove production line and a semi-impregnated glove impregnation method that can eliminate the steps of dripping and uniformly applying glue, has a simple structure, and can reduce the size of the glue tank and thus reduce production costs.

[0007] (II) Technical Solution

[0008] To address the aforementioned problems, this invention provides a semi-impregnated glove production line, comprising a semi-impregnated glove hand mold conveying mechanism, having two chains, two sprocket sets, several hand mold rods, and several hand molds; it also includes a liftable glue tank, and the sprocket sets include a glue-impregnated sprocket located above the liftable glue tank; the relative positions and orientations of the hand mold rods, the hand molds on the hand mold rods, and the chain plates on the chains connected to the hand mold rods are fixedly arranged; the liftable glue tank and the sprocket sets are configured such that the sprocket sets guide the hand molds located upstream of the glue-impregnated sprockets to the first position. When set, the liftable glue tank begins to rise; the sprocket assembly guides the hand mold located upstream of the glue-impregnating sprocket to contact the liquid surface in the rising liftable glue tank at a preset glue-in angle; when the hand mold located upstream of the glue-impregnating sprocket moves to the lowest point of the corresponding glue-impregnating sprocket, the liftable glue tank is at its highest point and begins to descend; the glue-impregnating sprocket guides the hand mold corresponding to the chain segment meshing with it in the chain, and as the chain segment moves upward, it moves upward while simultaneously turning its fingertips downward, separating from the liquid surface in the descending liftable glue tank at a preset glue-out angle that does not drip glue.

[0009] According to the present invention, a position sensor is provided to sense whether the hand mold located upstream of the dip sprocket has reached a first position. The rising speed of the liftable glue tank is correlated with the distance between the first position and the lowest point of the dip sprocket, so that when the hand mold located upstream of the dip sprocket reaches the lowest point of the dip sprocket from the first position, or before, the liftable glue tank rises until the hand mold reaches a preset dip depth. The falling speed of the liftable glue tank is correlated with the rotation speed of the dip sprocket, so that the un-dipped portion of the hand mold when it reaches the lowest point of the dip sprocket is always above the liquid surface of the liftable glue tank when the hand mold makes a downward turning motion with its fingertips.

[0010] According to the present invention, a liquid level sensor is provided to sense the liquid level in the liftable glue tank. When the liquid level in the liftable glue tank reaches the second position, the liftable glue tank rises until the hand mold reaches the preset immersion depth, and then the liftable glue tank stops rising.

[0011] According to the present invention, the preset dispensing angle is in the range of 20° to 70°.

[0012] According to the present invention, the sprocket guide chain is separated from the rubber-impregnated sprocket at the outer end of the sprocket.

[0013] According to the present invention, both ends of the hand mold rod are fixed to the chain by connecting plates; the connecting plates have two fixed positions that are fixed to two adjacent rotating positions of the chain; the center line between the connection point of the connecting plate and the hand mold rod and the fingertip of the hand mold is located in the middle between the two fixed positions; the connecting plate is bent and its connection position with the hand mold rod is relatively inward relative to the fixed positions.

[0014] According to the present invention, the preset glue insertion angle is in the range of -5° to 40°.

[0015] According to the present invention, the sprocket guide chain begins to engage with the dipped sprocket at the lowest point of the dipped sprocket, with a preset dip angle of 0°.

[0016] According to the present invention, the number of teeth of the rubber-impregnated sprocket is in the range of 17-70, and the pitch of the rubber-impregnated sprocket is in the range of 38.1 mm-100 mm.

[0017] Another aspect of the present invention provides a method for impregnating a semi-impregnated glove. Utilizing any of the semi-impregnated glove production lines described above, a chain moves along a sprocket assembly, and a hand mold on it moves accordingly. When the hand mold located upstream of the impregnation sprocket reaches a first position, a liftable glue tank begins to rise, and the hand mold at the first position serves as the target impregnated hand mold. The target impregnated hand mold contacts the liquid surface in the rising liftable glue tank at a preset glue entry angle. As the liftable glue tank rises, the impregnation depth of the target impregnated hand mold increases. When the target impregnated hand mold moves to the lowest point of the corresponding impregnation sprocket, the target impregnated hand mold is at the preset impregnation depth, the liftable glue tank is at the highest point, and the liftable glue tank begins to descend. The chain segment corresponding to the target impregnated hand mold turns upward along the impregnation sprocket, and the target impregnated hand mold subsequently turns downward with its fingertips. When its angle changes to a preset glue exit angle, the target impregnated hand mold separates from the liquid surface in the descending liftable glue tank.

[0018] (III) Beneficial Effects

[0019] In the semi-impregnated glove production line of the present invention, when the hand mold located upstream of the impregnating sprocket is guided by the sprocket assembly to the first position, the liftable glue tank begins to rise; when the hand mold located upstream of the impregnating sprocket moves to the lowest point of the corresponding impregnating sprocket, the liftable glue tank reaches the highest point, and then the liftable glue tank descends; when the hand mold moves from the first position to the lowest point of the impregnating sprocket, the hand mold contacts the liquid surface in the rising liftable glue tank at a preset glue entry angle; the hand mold corresponding to the chain segment meshed with it in the impregnating sprocket guides the chain segment to move upward as it moves upward, and at the same time, it rotates downward with its fingertips, separating from the liquid surface in the descending liftable glue tank at a preset glue exit angle that does not drip glue. By coordinating and linking a liftable glue tank with a sprocket assembly including a single dip sprocket positioned above the liftable glue tank, the hand mold can be smoothly guided into and out of the glue tank. During exiting the glue tank, the mold moves forward while simultaneously changing angle to create a tilted hand position. This allows for a pre-set exit angle without dripping glue, separating the mold from the liquid surface in the descending liftable glue tank. This ensures perfect surface tension peeling and film formation during the impregnation process, resulting in a uniform and smooth glove impregnation layer. This provides equipment support for impregnation processes that do not require vibration, dedicated glue dripping, or rotary homogenization. Furthermore, eliminating vibration, glue dripping, and rotary homogenization steps simplifies the production line structure and reduces its footprint. Additionally, using a liftable glue tank and employing only a single dip sprocket at the liftable glue tank to guide the hand mold from entry to exit further simplifies the equipment structure, allowing for a smaller glue tank size, reduced glue storage, and ultimately lower production costs.

[0020] In the semi-impregnated glove impregnation method of the present invention, when the hand mold located upstream of the impregnation sprocket reaches the first position, the liftable glue tank begins to rise, and the hand mold reaching the first position serves as the target impregnated hand mold; the target impregnated hand mold contacts the liquid surface in the rising liftable glue tank at a preset impregnation angle, and as the liftable glue tank rises, the impregnation depth of the target impregnated hand mold increases; when the target impregnated hand mold moves to the lowest point of the corresponding impregnation sprocket, the target impregnated hand mold reaches the preset impregnation depth, the liftable glue tank reaches the highest point, and then the liftable glue tank descends; the chain segment corresponding to the target impregnated hand mold turns upward along the impregnation sprocket, and the target impregnated hand mold subsequently turns downward with its fingertips; when its angle changes to a preset dispensing angle, the target impregnated hand mold separates from the liquid surface in the descending liftable glue tank. By coordinating and linking a liftable glue tank with a sprocket assembly including a single dip sprocket positioned above the liftable glue tank, the hand mold can be smoothly guided into and out of the glue tank. The guide ensures the hand mold exits the glue tank with an angle change that creates a tilted hand position, while simultaneously moving forward. This allows for perfect surface tension peeling and film formation during the impregnation process. The glue separates from the liquid surface in the descending liftable glue tank at a preset exit angle without dripping, resulting in a uniform and smooth glue-impregnated glove layer. This eliminates the need for vibration, dedicated glue dripping, and rotational homogenization, thus improving production efficiency. Furthermore, using a liftable glue tank and employing only a single dip sprocket at the liftable glue tank to guide the hand mold from entry to exit reduces the size of the glue tank and the amount of glue required, thereby lowering production costs. Attached Figure Description

[0021] Figure 1 This is a partial front view schematic diagram of the dipping station in the semi-dipping glove production line of Example 1;

[0022] Figure 2 for Figure 1 A partial 3D schematic diagram of the dipping station of a semi-dipped glove production line, which mainly shows the dipping sprocket, hand mold, hand mold rod, chain, and liftable glue tank;

[0023] Figures 3-9 for Figure 1 A schematic diagram of the glove dipping equipment during the glove dipping process is shown. Figure 4 The hand mold located below the dipped sprocket is the target dipped hand mold, and it is being dipped into the glue at a preset dip angle. Figure 3 This describes the state of the target dipped hand mold before the glue is applied. Figure 5 This refers to the state of the target dipped hand mold when it is at its maximum dip depth; from Figures 5 to 8 The process of removing the adhesive from a target dipped hand mold; Figure 8 The target dipped mold is ejected with glue at a preset ejection angle; Figure 9 The target dipped hand mold has been separated from the liquid surface of the liftable glue tank;

[0024] Figure 10 This is a partial structural diagram of the semi-impregnated glove production line in Example 2 at the impregnation station, which mainly shows the connection structure of the hand mold rod to the chain through the connecting plate;

[0025] Figure 11 for Figure 10 A schematic diagram of the hand mold rod and connecting plate in the semi-impregnated glove production line.

[0026] Figure label:

[0027] 1. Frame; 2. Liftable glue tank; 3. Chain; 4. Hand mold; 4': Target glue-impregnated hand mold; 5: Hand mold rod; 6. Glue-impregnated sprocket; 7. Connecting plate; 8. Hollow pin shaft; A. Fixed position. Detailed Implementation

[0028] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Example 1

[0030] Reference Figures 1 to 6 This embodiment provides a semi-impregnated glove production line. The semi-impregnated glove production line includes a semi-impregnated glove mold conveying mechanism and a liftable glue tank 2.

[0031] The semi-impregnated glove mold conveying mechanism includes a frame 1, two spaced chains 3, two sprocket sets, several mold rods 5, and several molds 4. The glove blank to be processed is placed on the mold 4. In this article, the glove mold 4 is inserted into, removed from, and impregnated with glue, which is equivalent to the glove blank on it being inserted into, removed from, and impregnated with glue.

[0032] Specifically, two sprocket sets are arranged in a one-to-one correspondence with two chains 3. Each chain 3 meshes with its corresponding sprocket set to obtain support and driving power. The sprockets in the two sprocket sets are symmetrically arranged to guide the synchronous movement of the two chains 3. In the detailed description of the sprocket arrangement below, only the sprockets in one sprocket set will be described, but the same applies to the other sprocket set. The sprockets in the sprocket sets are rotatably supported on the frame 1. Several hand mold rods 5 are connected between the two chains 3, and generally the hand mold rods 5 are arranged perpendicular to the chains 3. At least one hand mold 4 is suspended on each hand mold rod 5 (generally, at least two hand molds 4 are evenly spaced along the extension direction of the hand mold rod 5 to improve production efficiency). The wrist and finger parts of the hand mold 4 are arranged in the direction from downstream to upstream along the moving direction of the chain 3, that is, the wrist part of the hand mold 4 is closer to the downstream side than the finger part. The orientation of the hand mold 4 is with the palm facing outward and the back of the hand facing inward. Here, "outer" and "inner" as used in this article refer to the area divided by the chain 3. The side closer to the equipment that processes the glove blank on the hand mold 4, such as the liftable glue tank 2, is "outer", and the opposite side is "inner". At the same time, the relative position and orientation of the hand mold rod 5, the hand mold 4 on the hand mold rod 5, and the chain plate on the chain 3 connected to the hand mold rod 5 are fixed. That is, the orientation of the chain plate determines the orientation of the hand mold rod 5, and the orientation of the hand mold 4 on the hand mold rod 5 determines the orientation of the hand mold 4 on it. If the orientation of the chain plate changes, the orientation of the hand mold rod 5 and the hand mold 4 also change in the same direction and by the same amount.

[0033] Specifically, along the travel direction of chain 3, the sprocket assembly sequentially includes a glue-impregnated sprocket 6 located above the liftable glue tank 2, an upstream sprocket (not shown in the figure) located upstream of the glue-impregnated sprocket 6, and a downstream sprocket (not shown in the figure) located downstream of the glue-impregnated sprocket 6. It can be understood that the two glue-impregnated sprockets 6 in the two sprocket assemblies are symmetrically arranged with their axes coincident, the two upstream sprockets in the two sprocket assemblies are symmetrically arranged with their axes coincident, and the two downstream sprockets in the two sprocket assemblies are symmetrically arranged with their axes coincident.

[0034] The adjustable glue tank 2 and the sprocket assembly are configured as follows:

[0035] The positions of the upstream sprocket and the dipped sprocket 6 determine the orientation of the chain plate upstream of the dipped sprocket 6 in the chain 3, and consequently determine the orientation of the hand mold rod 5 and the hand mold 4 upstream of the dipped sprocket 6. In this embodiment, the upstream sprocket and the dipped sprocket 6 guide the orientation of the chain plate upstream of the dipped sprocket 6 in the chain 3 to guide the hand mold 4 upstream of the dipped sprocket 6 to move from the upstream sprocket to the dipped sprocket 6 at a preset glue entry angle. Specifically, the upstream sprocket and the dipped sprocket 6 guide the hand mold 4 upstream of the dipped sprocket 6 to a preset glue entry angle with the palm facing down and the fingertips located upstream of the connection between the hand mold 4 and the hand mold rod. That is, when the hand mold 4 contacts the liquid surface, its palm faces down and its fingertips are located upstream of the connection between the hand mold 4 and the hand mold rod.

[0036] When the upstream sprocket and the dip sprocket 6 guide the hand mold upstream of the dip sprocket 6 to the first position, this hand mold is considered the target dip mold 4' to be dipped in adhesive immediately. At this time, the liftable adhesive tank begins to rise. The upstream sprocket and the dip sprocket 6 further guide the target dip mold 4' to contact the liquid surface in the rising liftable adhesive tank 2 at a preset dip angle, and continue to guide the target dip mold 4' to move and dip in the adhesive liquid. When the target dip mold moves to the lowest point of the corresponding dip sprocket 6, the liftable adhesive tank 2 is at the highest point, and the liftable adhesive tank 2 begins to descend.

[0037] The positions of the downstream sprocket and the dipped sprocket 6 determine the orientation of the chain plate downstream of the dipped sprocket 6 in the chain 3, and consequently determine the orientation of the hand mold rod 5 and the hand mold 4 downstream of the dipped sprocket 6. In this embodiment, the downstream sprocket is located above the dipped sprocket 6. The downstream sprocket and the dipped sprocket 6 guide the orientation of the chain plate downstream of the dipped sprocket 6 in the chain 3, thereby guiding the chain 3 to separate from the dipped sprocket 6 at its outer end point, thus moving vertically upward away from the chain plate of the dipped sprocket 6. Furthermore, a drying chamber is provided after the dipping station. The sprocket assembly guides the chain 3 through the drying chamber to dry the dipped hand mold.

[0038] In this embodiment, the chain 3 engages with the glue-impregnated sprocket 6 at approximately one-quarter of its circumference on the lower outer side. The orientation of the chain plate engaging with the glue-impregnated sprocket 6 is determined by the glue-impregnated sprocket 6. Specifically, the glue-impregnated sprocket 6 guides the chain plate engaging with it in the chain 3 to move along its outer circumferential trajectory. The chain plate moves from the lower part of the glue-impregnated sprocket 6 outward to form an upward turning movement. The hand mold 4 corresponding to this engaging chain plate moves upward accordingly, while simultaneously turning downward with its fingertips, thereby separating from the liquid surface in the descending liftable glue tank 2 at a preset glue dispensing angle without dripping glue. Specifically, the glue-impregnated sprocket 6 guides the hand mold 4 corresponding to the chain plate engaging with it in the chain 3 at a preset glue dispensing angle with the palm facing down and the fingertips located upstream of the connection between the hand mold 4 and the hand mold rod. That is, when the hand mold 4 separates from the liquid surface, its palm faces down and its fingertips are located upstream of the connection between the hand mold 4 and the hand mold rod.

[0039] Based on the above structure, this embodiment has the following main advantages:

[0040] (1) By cooperating and linking the liftable glue tank 2 and the sprocket group including the single glue-dipping sprocket 6 located above the liftable glue tank 2, the hand mold can be smoothly guided to enter and dip in glue. The hand mold 4 moves forward and changes angle to form a tilted palm state. It can separate from the liquid surface in the liftable glue tank 2 in the lowered state at the preset glue discharge angle without dripping glue. This allows the glue dipping process to perfectly achieve surface tension peeling and film formation, saving vibration, glue dripping, and rotation homogenization steps, and also making the production line structure simpler and occupying less space.

[0041] (2) The hand mold 4 reduces the generation of bubbles while peeling the film through surface tension, forming a glove dip layer with good uniformity and smooth surface, thereby improving the product quality and film quality.

[0042] (3) The dispensing posture of the hand mold 4 is adjusted by the outer circumference shape of only one dipped sprocket 6, which is simple in structure and has high precision.

[0043] (4) Using a liftable glue tank 2, and only setting one glue-dipping sprocket 6 at the liftable glue tank 2 to guide the hand mold 4 from glue entry to glue exit, the equipment structure is simpler, and the glue entry and exit strokes are reduced by the opposing and reciprocating movements of the liftable glue tank and the chain plate, which can reduce the glue tank size by at least one-third and reduce the glue addition amount by more than 30%, thereby reducing production costs. At the same time,

[0044] (5) The use of only one dipped sprocket 6 replaces the entire guide component that slides in contact with the chain 3 in the prior art, avoiding equipment maintenance expenses caused by bidirectional wear between the chain 3 and the guide component, reducing maintenance costs and production costs; and further reducing the power loss of the chain drive motor, effectively saving energy.

[0045] (6) The semi-impregnated glove production line of this embodiment does not require an external rotating mechanism and an external moving mechanism for impregnation, which is conducive to achieving closed production and thus realizing centralized collection of certain gases generated during the production process, improving the environmental protection treatment effect and saving a lot of environmental treatment costs.

[0046] (7) The chain 3 does not stop moving during the dipping process, which is conducive to continuous production and improves production efficiency.

[0047] Furthermore, in this embodiment, both ends of the hand mold rod 5 are fixed to the chain 3 via connecting plates 7. The connecting plate 7 is a straight plate with two fixing positions A that are fixed to two adjacent rotating positions of the chain 3. Specifically, in this embodiment, the two adjacent rotating positions of the chain 3 are two hollow pins 8 connected to both ends of the chain plate, and the two fixing positions A of the connecting plate 7 are two through holes opened on the connecting plate. The two hollow pins 8 and the two through holes are correspondingly arranged, and a bolt is inserted into the corresponding hollow pin 8 and through hole. The bolt and a nut are screwed together to clamp the connecting plate 7 and the chain plate of the chain 3. Thus, when the chain plate rotates, the connecting plate 7 rotates, the hand mold rod 5 rotates, and the hand mold 4 rotates, thereby achieving the relative position and orientation fixation of the hand mold rod 5, the hand mold 4 on the hand mold rod 5, and the chain plate on the chain 3 to which the hand mold rod 5 is connected.

[0048] Of course, the relative position and orientation of the hand mold rod 5, the hand mold 4 on the hand mold rod 5, and the chain plate on the chain 3 connected to the hand mold rod 5 are not limited to the above structure. Any method that can fix the hand mold rod 5 and the chain 3 is acceptable.

[0049] In this embodiment, the centerline between the connection point of the connecting plate 7 and the hand mold rod 5 and the fingertip of the hand mold 4 (the centerline of the line connecting the two fixed positions A along the extension direction of the chain 3) is located in the middle between the two fixed positions A. This saves space, allows for the suspension of more hand mold rods 5 on the chain 3, and improves production efficiency.

[0050] The angle between the hand mold 4 and the chain 3 is preferably parallel, that is, the palm surface of the hand mold 4 is parallel to the extension direction of the chain 3 (allowing for reasonable installation errors). This makes it easier to design preset glue entry angles, preset glue exit angles, and the positions and movements of related components.

[0051] In this embodiment, a position sensor is installed on the frame 1. The position sensor senses whether the hand mold 4 located upstream of the dip sprocket 6 has reached the first position. When the position sensor senses that the hand mold 4 located upstream of the dip sprocket 6 has reached the first position, it sends a command signal to the production line controller. The controller then controls the liftable glue tank 2 to rise.

[0052] The rising speed of the liftable glue tank 2 is related to the distance between the first position and the lowest point of the glue-impregnated sprocket 6. Of course, the traveling speed of the chain 3 and the initial position of the liftable glue tank 2 also need to be considered. Through calculation and experiment, when the hand mold 4 located upstream of the glue-impregnated sprocket 6 reaches the lowest point of the glue-impregnated sprocket 6 from the first position, the liftable glue tank 2 rises to the point where the hand mold 4 reaches the preset glue-impregnated depth.

[0053] Of course, the present invention is not limited to this. When the preset glue entry angle is 0°, in addition to raising the liftable glue tank 2 to the preset glue depth when the hand mold 4 located upstream of the glue-dipping sprocket 6 reaches the lowest point of the glue-dipping sprocket from the first position, the liftable glue tank 2 can also be raised to the preset glue depth and maintained before the hand mold 4 located upstream of the glue-dipping sprocket 6 reaches the lowest point of the glue-dipping sprocket 6 from the first position. This increases the glue dipping time according to process requirements, but this setting will also increase the size of the liftable glue tank 2. The time during which the height of the liftable glue tank 2 remains constant can be set to a preset time after the controller stops the liftable glue tank from rising, and then it will descend. This preset time is determined based on the distance between the target dipped hand mold 4' at the position of the liftable glue tank 2 when it stops rising and the lowest point of the dipped sprocket 6, as well as the travel speed of the chain 3. Alternatively, a position sensor can be fixed on the frame 1 or the dipped sprocket 6. When the position sensor senses that a hand mold has moved to the lowest end of the dipped sprocket 6, it sends a command signal to the controller, which then controls the liftable glue tank 2 to descend.

[0054] In this embodiment, the upstream sprocket and the dipped sprocket 6 guide the chain 3 to engage with the dipped sprocket 6 at the lowest point of the dipped sprocket 6, that is, guide the chain plate between the two to be horizontally oriented. In addition, the hand mold 4 is parallel to the chain 3, so the preset glue insertion angle is 0°, that is, the fingertip points horizontally in the upstream direction.

[0055] Of course, the present invention is not limited to this. The angle between the hand mold 4 and the chain 3 may not be parallel, but may have a fixed non-zero included angle. The chain plate between the upstream sprocket and the dipped sprocket 6 may not be horizontally oriented, but may have a certain angle of inclination according to the dipped area requirements of the hand mold 4.

[0056] The angle between the hand mold 4 and the chain 3, as well as the angle between the chain links between the upstream sprocket and the glue-impregnated sprocket 6, together determine the preset glue insertion angle. The preset glue insertion angle is the angle between the palm of the hand mold 4 and the horizontal direction. Preferably, the preset glue insertion angle is within the range of -5° to 40°, where the finger pointing downward relative to the horizontal direction is positive and the finger pointing upward relative to the horizontal direction is negative.

[0057] Furthermore, in this embodiment, a liquid level sensor is installed on the frame 1. The liquid level sensor senses the liquid level in the liftable glue tank 2. When the liquid level in the liftable glue tank 2 reaches the second position, it is considered that the liftable glue tank 2 has risen to the preset impregnation depth of the hand mold 4. The liquid level sensor sends a command signal to the controller, and the controller controls the liftable glue tank 2 to stop rising. Depending on the above two schemes, it immediately begins to descend or maintains a constant height. The determination of the second position takes into account the first position, the traveling speed of the chain 3, the initial position of the liftable glue tank 2, and the rising speed of the liftable glue tank 2, etc., and is determined through calculation and experimentation. The liquid level in the liftable glue tank 2 is used as a representation of the lowest point of the hand mold 4 reaching the impregnation sprocket 6. Of course, the present invention is not limited to this. In the scheme where the liftable glue tank 2 stops rising and immediately begins to fall, a position sensor can also be directly installed on the frame 1 or the glue-impregnating sprocket 6 to sense whether a hand mold has reached the lowest point of the glue-impregnating sprocket 6. If the position sensor senses that a hand mold has reached the lowest point of the glue-impregnating sprocket 6, it sends a command signal to the controller, and the controller controls the liftable glue tank to stop rising and begin to fall at the same time.

[0058] In this embodiment, the size of the dipped sprocket 6 determines the angle change rate of the chain plate it meshes with, and thus determines the angle change rate of the hand mold 4. Preferably, the number of teeth of the dipped sprocket 6 is in the range of 17-70, and the pitch of the dipped sprocket 6 is in the range of 38.1 mm-100 mm, to prevent the angle change of the hand mold 4 from being too fast when dispensing glue, thereby reducing the quality of the dipped glue.

[0059] The descent speed of the liftable glue tank 2 is related to the rotation speed of the glue-dipping sprocket 6. Of course, the size of the hand mold 4, the travel distance from the lowest point of the glue-dipping sprocket 6 to its separation from the sprocket 6, and the preset glue-dipping angle of the hand mold 4 also need to be considered. Through calculation and experimentation, the un-dipped portion of the hand mold 4 at the lowest point of the glue-dipping sprocket 6 remains above the surface of the glue in the liftable glue tank 2 during a uniform downward rotation of the hand mold 4. This prevents the fingertips of the hand mold 4 from penetrating deeper into the glue and dipping areas that should not be dipped in glue.

[0060] Furthermore, if the descent speed of the liftable glue tank 2 is too fast, it will not be conducive to the formation of surface tension and prevent glue dripping when the hand mold 4 dispenses glue; if the descent speed of the liftable glue tank 2 is too slow, a longer dispensing stroke will be required, resulting in a larger size of the liftable glue tank 2. Therefore, the descent speed of the liftable glue tank 2, the travel speed of the chain 3, and the size of the glue-dipping sprocket 6 are the main factors to be considered and set together.

[0061] In this embodiment, the preset glue dispensing angle is within the range of 20° to 90°. The preset glue dispensing angle is the angle between the palm of the hand mold 4 and the horizontal direction; a positive angle indicates the fingertips are pointing downwards. A preset glue dispensing angle greater than or equal to 20° effectively prevents glue dripping. However, if the preset glue dispensing angle is too large, the immersion time in the glue tank is longer, meaning the time spent walking in the glue tank is longer, requiring a larger glue tank size. Therefore, the preset glue dispensing angle is preferably within the range of 20° to 80°, and more preferably within the range of 20° to 70°, to further reduce the size of the glue tank while achieving no glue dripping.

[0062] In this embodiment, the liftable glue tank 2 includes a support and a glue tank body. The glue tank body is supported on the support by a lifting structure, and a drive mechanism drives the glue tank body to move up and down along the support. The specific drive mechanism can be a hydraulic cylinder, a pneumatic cylinder, a chain sprocket, a rack and pinion, etc., and the lifting structure can be a slide rail slider structure, etc., all of which adopt common structures in the prior art and will not be described in detail.

[0063] In this embodiment, the installation distance between adjacent hand mold rods is set such that when the front row of hand molds separates from the liquid surface at a preset glue dispensing angle, the back row of hand molds is at a preset glue immersion depth.

[0064] In summary, the impregnation method for semi-impregnated gloves produced using the aforementioned semi-impregnated glove production line is described below:

[0065] Chain 3 moves along the sprocket assembly, and the hand mold 4 on it also moves accordingly.

[0066] The hand mold 4, located upstream of the dipped sprocket 6, moves towards the dipped sprocket 6 at a preset dip angle after passing the upstream sprocket. From Figures 3 to 4 When the position sensor detects that the hand mold 4 located upstream of the dipped sprocket 6 has reached the first position, the position sensor sends a command signal to the controller, and the controller controls the liftable glue tank 2 to start rising. The hand mold 4 that has reached the first position is the target dipped hand mold 4'.

[0067] exist Figure 4 In the target state, the dipped hand mold 4' contacts the liquid surface in the rising liftable glue tank 2 at a preset glue insertion angle; from Figures 4 to 5 As the liftable glue tank 2 rises, the glue immersion depth of the target glue-immersed hand mold 4' increases.

[0068] exist Figure 5In the first state, the liquid level sensor detects that the liquid level in the liftable glue tank 2 has reached the second position. The liquid level sensor sends a command signal to the controller. At this time, the target glue-soaked hand mold 4' moves to the lowest point of the corresponding glue-soaking sprocket 6 or before the lowest point, and the target glue-soaked hand mold 4' reaches the preset glue-soaking depth. After receiving the command signal, the controller controls the liftable glue tank 2 to stop rising, and the liftable glue tank 2 reaches the highest point. If the target glue-soaked hand mold 4' is at the lowest point of the glue-soaking sprocket 6 at this time, the controller controls the liftable glue tank 2 to descend immediately; if the target glue-soaked hand mold 4' is before the lowest point of the glue-soaking sprocket 6, the controller controls the liftable glue tank 2 to descend after a certain preset time, or senses whether the target glue-soaked hand mold 4' has arrived at the lowest point of the glue-soaking sprocket 6. When the position sensor detects that the hand mold has arrived, it sends a command signal to the controller, and the controller controls the liftable glue tank 2 to descend.

[0069] Reference from Figures 5 to 8 The chain segment of chain 3 corresponding to the target dipped hand mold 4' moves upward along the dipped sprocket 6, and the target dipped hand mold 4' then rotates at a constant speed with its fingertips pointing downward. Figure 8 The angle of the target dipped hand mold 4' changes to a preset glue dispensing angle, separating the target dipped hand mold 4' from the liquid surface in the lowering glue tank 2. The descent speed of the lowering glue tank 2 is related to the rotation speed of the dipped sprocket 6, ensuring that the un-dipped portion of the target dipped hand mold 4' at the lowest point of the dipped sprocket 6 remains above the liquid surface in the lowering glue tank 2 when the target dipped hand mold 4' rotates downwards with its fingertips. This prevents the hand mold's fingertips from dipping deeper into the glue and dipping areas that shouldn't be dipped.

[0070] from Figure 8 Towards Figure 9 And then, as needed, the target dipped mold 4' continues to move towards the downstream sprocket and enters the drying box for drying.

[0071] Using the production line and method described in this embodiment, during the dipping process, the hand mold 4 always has its palm side facing the bottom of the adjustable glue tank 2, which meets the production requirements of a semi-dipping glove, and the palm is dipped in glue. According to production requirements, the height of the liquid level in the adjustable glue tank 2 can be controlled to dip the fingers in glue; the back of the hand is not dipped in glue. That is, the degree of glue dipping on the palm side of the hand mold 4 is different from the degree of glue dipping on the back of the hand.

[0072] The dipping method for this semi-dipping glove has the advantages of the same semi-dipping glove production line mentioned above, and will not be described again.

[0073] Example 2

[0074] Reference Figure 10 and Figure 11In this embodiment, the connecting plate 7 of Embodiment 1 is replaced. The connecting plate 7 in this embodiment is bent, and its connection position with the hand mold rod 5 is inward relative to the fixing position A. Specifically, the connecting plate 7 has a hand mold rod 5 fixing plate and a chain 3 fixing plate at an angle. The fixing position A is located on the chain 3 fixing plate, and the chain 3 fixing plate is parallel to the extension direction of the chain 3. The hand mold rod 5 fixing plate is bent inward relative to the chain 3 fixing plate, and the hand mold 4 fixing plate is fixed to the hand mold rod 5 by bolts. This arrangement further saves space, allows for more hand mold rods 5, and improves production efficiency.

[0075] In addition to the connecting plate 7 structure of Embodiment 1 and Embodiment 2, a bent plate chain can also be used.

[0076] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0077] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0078] It should be understood that the above description of specific examples is only for illustrating the technical approach and features of this invention, and is intended to enable those skilled in the art to understand the content of this invention and implement it accordingly. However, this invention is not limited to the specific embodiments described above. All variations or modifications made within the scope of these claims should be covered by the protection scope of this invention.

Claims

1. A semi-impregnated glove production line, comprising a semi-impregnated glove hand mold conveying mechanism, having two chains, two sprocket sets, several hand mold rods, and several hand molds; characterized in that, It also includes a liftable glue tank, and the sprocket assembly includes a glue-impregnated sprocket located above the liftable glue tank; The relative positions and orientations of the hand mold rod, the hand mold on the hand mold rod, and the chain plate on the chain connected to the hand mold rod are fixedly arranged; The adjustable glue tank and the sprocket assembly are configured as follows: When the sprocket assembly guides the hand mold located upstream of the dipped sprocket to the first position, the liftable glue tank begins to rise; The sprocket assembly guides the hand mold located upstream of the dipped sprocket to contact the liquid surface in the rising liftable glue tank at a preset glue entry angle and continues to guide the hand mold to walk and dip in the glue liquid. When the hand mold located upstream of the dipped sprocket moves to the lowest point corresponding to the dipped sprocket, the liftable glue tank is at the highest point and begins to descend; The glue-impregnated sprocket guides the hand mold corresponding to the chain segment meshing with it in the chain, and moves it upward as the chain segment turns. While moving upward, the hand mold turns downward with its fingertips, so as to separate the hand mold from the liquid surface in the lifting glue tank in the descending state at a preset glue dispensing angle that does not drip glue.

2. The semi-impregnated glove production line according to claim 1, characterized in that, A position sensor is set to sense whether the hand mold located upstream of the dip sprocket has reached the first position. The rising speed of the liftable glue tank is related to the distance between the first position and the lowest point of the dip sprocket, so that when the hand mold located upstream of the dip sprocket reaches the lowest point of the dip sprocket from the first position, or before, the liftable glue tank rises until the hand mold reaches a preset dip depth. The descent speed of the liftable glue tank is related to the rotation speed of the glue-impregnating sprocket, so that the unimpregnated part of the hand mold when it reaches the lowest point of the glue-impregnating sprocket is always above the liquid surface of the liftable glue tank when the hand mold makes a downward turning motion with its fingertips.

3. The semi-impregnated glove production line according to claim 2, characterized in that, A liquid level sensor is set to sense the liquid level in the liftable glue tank. When the liquid level in the liftable glue tank reaches the second position, the liftable glue tank rises until the hand mold reaches the preset immersion depth, and then the liftable glue tank stops rising.

4. The semi-impregnated glove production line according to claim 1, characterized in that, The preset dispensing angle is within the range of 20° to 70°.

5. The semi-impregnated glove production line according to claim 1, characterized in that, The sprocket assembly guides the chain to separate from the rubber-impregnated sprocket at its outer end.

6. The semi-impregnated glove production line according to claim 1, characterized in that, Both ends of the hand mold rod are fixed to the chain via connecting plates; The connecting plate has two fixed positions that are fixed to two adjacent rotating positions of the chain; The centerline between the connection point of the connecting plate and the hand mold rod and the fingertip of the hand mold is located in the middle between the two fixed positions; The connecting plate is bent, and its connection position with the hand mold rod is inward relative to the fixed position.

7. The semi-impregnated glove production line according to claim 1, characterized in that, The preset glue insertion angle is within the range of -5° to 40°.

8. The semi-impregnated glove production line according to claim 7, characterized in that, The sprocket assembly guides the chain to engage with the dipped sprocket at its lowest point, with the preset dip angle being 0°.

9. The semi-impregnated glove production line according to claim 1, characterized in that, The number of teeth on the rubber-impregnated sprocket is in the range of 17-70, and the pitch of the rubber-impregnated sprocket is in the range of 38.1 mm-100 mm.

10. A method for impregnating a semi-impregnated glove with adhesive, characterized in that, In the semi-impregnated glove production line according to any one of claims 1-9, the chain moves along the sprocket assembly, and the hand mold thereon also moves accordingly; When the hand mold located upstream of the dipped sprocket reaches the first position, the liftable glue tank begins to rise, and the hand mold that reaches the first position is used as the target dipped hand mold; The target dipped hand mold contacts the liquid surface in the rising liftable glue tank at a preset dip angle. As the liftable glue tank rises, the dip depth of the target dipped hand mold increases. When the target dipped mold moves to the lowest point of the corresponding dipped sprocket, the target dipped mold is at the preset dip depth, the liftable glue tank is at the highest point, and the liftable glue tank begins to descend. The chain segment corresponding to the target dipped hand mold turns upward along the dipped sprocket, and the target dipped hand mold turns downward with its fingertips. When its angle changes to a preset glue dispensing angle, the target dipped hand mold separates from the liquid surface in the lowerable glue tank.

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