CN210719515U

CN210719515U - Pressure maintaining device

Info

Publication number: CN210719515U
Application number: CN201922177739.0U
Authority: CN
Inventors: 郭国军
Original assignee: TCL King Electrical Appliances Huizhou Co Ltd
Current assignee: TCL King Electrical Appliances Huizhou Co Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-06-09
Anticipated expiration: 2029-12-06

Abstract

The utility model provides a pressurizer, include: mounting a plate; the first pressure plate assembly is arranged on the mounting plate and is positioned on one side of the object to be processed; the first pressure plate assembly and the second pressure plate assembly are used for clamping the object to be processed; the driving assembly is arranged on the mounting plate and is in driving connection with the second pressure plate assembly; and one end of the transmission component is connected with the second pressure plate component, and the other end of the transmission component is connected with the first pressure plate component. The utility model provides a pressurizer has solved the not good technical problem of pressurize effect of pressurize mode among the prior art.

Description

Pressure maintaining device

Technical Field

The utility model relates to a TV set equipment field especially relates to a pressurizer.

Background

The assembly of TV set LCD screen (abbreviation OC) and TV set bottom frame is an indispensable process in the TV set equipment, generally adopts 3M sticky fixed mode of adhesion, pastes 3M glue at the edge (topside and two sides) of TV set bottom frame promptly, then removes 3M and glues from type paper, directly adheres the OC on it, and it is firm in order to ensure OC screen and 3M glue complete adhesion, need carry out the pressurize of certain time to the place of OC screen and 3M glue adhesion after the adhesion is accomplished. At present, the pressure maintaining mode of a cylinder or an air bag is commonly adopted, and an operator operates to maintain the pressure of the side edge of the OC screen. However, the above-mentioned method has high working strength and high labor cost, and the air cylinder or the air bag is not easy to control, and the pressure maintaining effect is not good, and meanwhile, the air bag is easy to leak air, the air cylinder is easy to damage, and the durability is not high, which affects the normal use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pressurizer aims at solving the technical problem that current pressurize mode pressurize effect is not good.

In order to achieve the above object, the utility model provides a pressurizer, include:

mounting a plate;

the first pressure plate assembly is arranged on the mounting plate and is positioned on one side of the object to be processed;

the first pressure plate assembly and the second pressure plate assembly are used for clamping the object to be processed;

the driving assembly is arranged on the mounting plate and is in driving connection with the second pressure plate assembly; and the number of the first and second groups,

and one end of the transmission component is connected with the second pressure plate component, and the other end of the transmission component is connected with the first pressure plate component.

Optionally, the transmission assembly comprises:

the guide wheel is arranged on the mounting plate;

one end of the first toothed plate is connected with the first pressure plate assembly, and the other end of the first toothed plate is meshed with the guide wheel;

one end of the second toothed plate is connected with the second pressing plate assembly, the other end of the second toothed plate is meshed with the guide wheel, and the second toothed plate and the first toothed plate are located on two opposite sides of the guide wheel.

Optionally, the first pressing plate assembly comprises a first pressing block and a first fixing seat, one end of the first fixing seat is connected with the transmission assembly, and the first pressing block is detachably mounted at the other end of the first fixing seat.

Optionally, the first platen assembly further comprises:

the first connecting plate comprises a first folding edge and a second folding edge connected with the first folding edge, the first folding edge is connected with the first toothed plate, and the second folding edge is suspended;

one end of the connecting column penetrates through the second folded edge and then is connected with the first fixed seat, and the other end of the connecting column is positioned on one side, away from the first fixed seat, of the second folded edge;

and the spring is sleeved on the connecting column, and two ends of the connecting column are respectively abutted against the first fixing seat and the first connecting plate.

Optionally, the pressurizer further comprises a pressure sensor, the pressure sensor is mounted on the first connecting plate, and a detection end of the pressure sensor faces the connecting column to detect the pressure of the connecting column.

Optionally, the second pressing plate assembly comprises a second pressing block, a second fixing seat and a connecting plate, one side face of the connecting plate is fixedly connected with the second toothed plate, one end of the second fixing seat is connected with the connecting plate, the second pressing block is detachably mounted at the other end of the second fixing seat, and the projection of the second pressing block and the projection of the first pressing block on the object to be processed coincide.

Optionally, the second platen assembly further comprises a second connecting plate connected to the engagement plate, the drive assembly drivingly connecting the second connecting plate.

Optionally, the pressurizer still includes two sets of sliding components, the first set of sliding component's one end with mounting panel sliding connection, the other end with first clamp plate subassembly is connected, the second set of sliding component's one end with mounting panel sliding connection, the other end with second clamp plate subassembly is connected.

Optionally, each group slider and slide rail that sliding assembly includes, the slide rail sets up the mounting panel, the slider is installed the slide rail, first group in the sliding assembly the slider deviates from one side of slide rail with first clamp plate subassembly links to each other, and the second group in the sliding assembly the slider deviates from one side of slide rail with second clamp plate subassembly links to each other, wherein, the second group in the sliding assembly the slide rail is equipped with the stopper.

Optionally, the driving assembly includes a lead screw and a servo motor for driving the lead screw, and the lead screw drives the second platen assembly to move.

Compared with the prior art, the utility model provides an among the technical scheme, through first clamp plate subassembly and the second clamp plate subassembly that sets up, will treat the processing thing and arrange in between the two, make first clamp plate subassembly and second clamp plate subassembly move in order to realize treating the tight pressurize of clamp of processing thing to equidirectional motion, and simultaneously, the second clamp plate subassembly is through the first clamp plate subassembly of drive assembly drive that sets up to opposite direction motion in the motion, realized by the first clamp plate subassembly of a actuating mechanism drive, the synchronous and opposite direction motion of second clamp plate subassembly, effectively wait for the tight pressurize of clamp of processing thing to the TV set screen, production processes has been reduced, and the production efficiency is improved, and the stability of product is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of an embodiment of the pressurizer of the present invention cooperating with a workpiece;

FIG. 2 is a schematic structural diagram of a first state of the pressurizer of the present invention;

FIG. 3 is a schematic structural view of another state of the pressurizer of the present invention;

FIG. 4 is a schematic view of a partial structure of an embodiment of the pressurizer of the present invention;

FIG. 5 is a schematic view of a partial structure of another embodiment of the pressurizer of the present invention;

FIG. 6 is a schematic structural view of a mounting plate and a driving assembly in an embodiment of the pressurizer of the present invention;

fig. 7 is a schematic structural view of the first fixing seat in an embodiment of the pressurizer of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

As shown in fig. 1-3, an embodiment of the present invention provides a pressurizer, including:

a mounting plate 1;

the first pressure plate component 2 is arranged on the mounting plate 1 and is positioned on one side of the object to be processed;

the second pressure plate component 3 is positioned at the other side of the object to be processed, and the first pressure plate component 2 and the second pressure plate component 3 are used for clamping the object to be processed;

the driving assembly 5 is arranged on the mounting plate 1, and the driving assembly 5 is in driving connection with the second pressure plate assembly 3; and the number of the first and second groups,

and one end of the transmission component 6 is connected with the second pressure plate component 3, and the other end of the transmission component 6 is connected with the first pressure plate component 2.

In the technical scheme adopted in this embodiment, the to-be-processed object is placed between the first pressing plate assembly 2 and the second pressing plate assembly 3, so that the first pressing plate assembly 2 and the second pressing plate assembly 3 move in different directions to clamp and maintain pressure of the to-be-processed object, and the second pressing plate assembly 3 drives the first pressing plate assembly 2 to move in the opposite direction through the arranged transmission assembly 6 during movement, so that the first pressing plate assembly 2 and the second pressing plate assembly 3 are driven by one driving assembly 5 to move synchronously in the opposite direction, and clamping and maintaining pressure of a television screen or other to-be-processed objects are effectively achieved.

Specifically, the mounting plate 1 is of a flat plate-shaped structure and is used for mounting and fixing various parts, is made of aluminum alloy materials, and is provided with a plurality of grooves, so that the weight of the whole mechanism is reduced on the basis of ensuring the strength; the first pressure plate component 2 and the second pressure plate component 3 can adopt the same structure, which mainly realizes clamping and pressure maintaining of the object to be processed, that is, the first pressure plate component 2 is propped against one surface of the object to be processed, and the second pressure plate component 3 is propped against the opposite surface of the object to be processed, namely, the object to be processed is propped against from two directions, so that the television screen is firmly bonded with the television frame, in order to further ensure the effect, the projections of the positions of the first pressure plate component 2 and the second pressure plate component 3, which are propped against the object to be processed, on the object to be processed are superposed, for example, if the first pressure plate component 2 and the second pressure plate component 3 clamp and maintain the object to be processed in the vertical direction, the positions of the first pressure plate component 2 and the second pressure plate component 3, which are propped against the object to be processed, are flush in the vertical direction; the transmission assembly 6 is used for connecting the first pressure plate assembly 2 and the second pressure plate assembly 3, and it can be understood that the second pressure plate assembly 3 can drive the first pressure plate assembly 2 to move towards the direction opposite to the moving direction of the second pressure plate assembly 3 through the transmission assembly 6.

Further, referring to fig. 6, the driving assembly 5 includes a lead screw 501 and a servo motor 502 for driving the lead screw 501, and the lead screw 501 is connected to the second pressing plate assembly 3 in a driving manner.

In the technical scheme that this embodiment adopted, the drive assembly 5 that drives the motion of second clamp plate subassembly 3 has adopted lead screw 501's mode, and safe and stable and easy control in the motion, the pressurize effect is better, and is more durable, has reduced use cost.

Specifically, lead screw 501 level sets up on the side of mounting panel 1 orientation treating the processing thing, and lead screw 501 sets up the direction and is parallel with first clamp plate subassembly 2, second clamp plate subassembly 3's direction of motion, is equipped with the axle bed on mounting panel 1, and this axle bed is connected with lead screw 501's one end, and lead screw 501's the other end is connected with servo motor 502, and in order to guarantee the effect of connecting, lead screw 501 passes through the shaft coupling with servo motor 502 and fixes. In this embodiment, the servo motor 502 drives the lead screw 501 to rotate, the lead screw 501 rotates to drive the second platen assembly 3 to move, and the second platen assembly 3 drives the first platen assembly 2 to move in the direction opposite to the moving direction of the second platen assembly 3 through the transmission assembly 6, so as to clamp the object to be processed between the first platen assembly 2 and the second platen assembly 3, so that the television screen and the television frame are firmly bonded.

Further, referring to fig. 4 and 5, the transmission assembly 6 includes:

a guide wheel 601 provided on the mounting plate 1;

a first toothed plate 602, one end of the first toothed plate 602 is connected with the first pressure plate assembly 2, and the other end is engaged with the guide wheel 601;

and one end of the second toothed plate 603 is connected with the second pressure plate assembly 3, the other end of the second toothed plate 603 is meshed with the guide wheel 601, and the second toothed plate 603 and the first toothed plate 602 are located on two opposite sides of the guide wheel 601.

In the technical solution adopted in this embodiment, the guide wheel 601 may be a gear, the mounting plate 1 is provided with a rotating shaft, one end of the rotating shaft is fixed on the mounting plate 1, and the other end of the rotating shaft is fixed and concentric with the guide wheel 601, it can be understood that the rotating direction of the guide wheel 601 is parallel to the mounting plate 1, and the guide wheels 601 are disposed between the first toothed plate 602 and the second toothed plate 603 and are respectively engaged with each other; the first toothed plate 602 is fixed to the first pressure plate assembly 2, and may be directly fixed to the first pressure plate assembly 2, or the fixed connection between the first toothed plate 602 and the first pressure plate assembly 2 may be achieved by means of an intermediate component, and when the guide wheel 601 rotates, the first toothed plate 602 may be driven to move, that is, the first pressure plate assembly 2 is driven to move; the second toothed plate 603 is fixed to the second pressing plate assembly 3, and may be directly fixed to the second pressing plate assembly 3, or may be fixedly connected to the second pressing plate assembly 3 by means of an intermediate member, when the second pressing plate assembly 3 moves under the driving of the driving assembly 5, the second toothed plate 603 is driven to move, and the guide wheel 602 is driven to rotate by the movement of the second toothed plate 603. In this embodiment, the guide wheel 601, the first toothed plate 602 and the second toothed plate 603 are arranged, so that the second pressure plate assembly 3 can drive the first pressure plate assembly 2 to move while moving, and the process is driven by only one driving assembly 5, thereby reducing the complexity of the structure and the cost.

Further, referring to fig. 4, 5, and 7, the first pressing plate assembly 2 includes a first pressing block 201 and a first fixing seat 202, one end of the first fixing seat 202 is connected to the transmission assembly 6, and the first pressing block 201 is detachably mounted at the other end of the first fixing seat 202.

In the technical scheme that this embodiment adopted, first briquetting 201 is used for directly carrying out the butt with treating the processing thing, and first briquetting 201 detachable installs at first fixing base 202, and what can be convenient changes first briquetting 201 to satisfy the demand of the TV screen pressurize of not unidimensional, simple and convenient practicality, first fixing base 202 is connected with drive assembly 6, in order to realize the overall motion of the first clamp plate subassembly 2 of drive assembly 6 drive. Preferably, the first fixing seat 202 is provided with a limiting pin, so that the first pressing block 201 of the lcd tv screens with different sizes can be accurately installed, and the whole structure is high in accuracy, wear-resistant and durable.

Further, referring to fig. 4 and 5, the first platen assembly 2 further includes:

the first connecting plate 203 comprises a first folding edge and a second folding edge connected with the first folding edge, the first folding edge is connected with the first toothed plate 602, and the second folding edge is suspended;

one end of the connecting column 204 penetrates through the second folded edge and then is connected with the first fixed seat 202, and the other end of the connecting column 204 is positioned on one side of the second folded edge, which deviates from the first fixed seat 202;

the spring 205 is sleeved on the connection column 204, and two ends of the spring 205 are respectively abutted against the first fixing seat 202 and the first connection plate 203.

In the technical scheme adopted by the embodiment, in order to effectively ensure that the pressure of the pressed surface of the object to be processed is uniform, the spring 205 is arranged, the rigid pressing of the pressed surface of the object to be processed is changed, the pressed surface is relatively soft when being pressed, and a buffering process is arranged in the middle. Moreover, the spring 205 is sleeved on the connecting column 204, so that on one hand, the use effect can be prevented from being influenced by the bending of the spring 205, on the other hand, the spring can also play a guiding role, and in other embodiments, the spring 205 can be replaced by other components with elasticity. Specifically, a through hole is formed in the second folded edge of the first connecting plate 203, and the connecting column 204 passes through the through hole and then is fixedly connected with the first fixing seat 202, can be directly embedded into the first fixing seat 202, and can also be fixed with the first fixing seat 202 through a nut. Meanwhile, in order to prevent the connecting column 204 from being separated from the second flange, a limiting part is arranged at one end of the connecting column 204 far away from the first fixing seat 202, and the limiting part can be cylindrical and square, so long as the connecting column cannot penetrate through the through hole, that is, the surface area of the limiting part is larger than that of the through hole.

In this embodiment, the first connecting plate 203 is driven by the first toothed plate 602 to move synchronously until contacting with the pressed surface of the workpiece, and the spring 205 is compressed and contracted, and the length of the connecting column 204 at the end far away from the first fixed seat 202 is gradually increased.

Further, referring to fig. 1 to 3, the pressure maintaining device further includes a pressure sensor 7, the pressure sensor 7 is mounted on the first connecting plate 203, and a detection end of the pressure sensor 7 faces the connecting column 204 to detect the pressure of the connecting column 204.

In the technical scheme adopted by the embodiment, the pressure sensor 7 is arranged for monitoring the pressure value of pressure maintaining in real time, and the pressure-bearing surface of the object to be processed is ensured not to be damaged due to large pressure. Because the length of the connecting column 204 at the end far from the first fixing base 202 is gradually increased, the end far from the first fixing base 202 of the connecting column 204 is in contact with the detection end of the pressure sensor 7 and generates pressure on the pressure sensor 7. Preferably, the pressure sensor 7 is mounted on a bracket fixed to the first connection plate 203. It should be noted that the detected pressure of the connecting column 204 may correspond to the pressure of the holding pressure.

Further, referring to fig. 4 and 5, the second pressing plate assembly 3 includes a second pressing plate 301, a second fixing seat 302 and a connecting plate, one side surface of the connecting plate is fixedly connected with the second toothed plate 603, one end of the second fixing seat 302 is connected with the connecting plate, the second pressing plate 301 is detachably mounted at the other end of the second fixing seat 302, and the second pressing plate 301 and the first pressing plate 201 are overlapped in projection on the object to be processed.

In the technical scheme that this embodiment adopted, second briquetting 301 is used for directly carrying out the butt with treating the processing thing, and second briquetting 301 detachable installs at second fixing base 302, and what can be convenient changes second briquetting 301 to satisfy the demand of the TV screen pressurize of not unidimensional, simple and convenient and practical. Preferably, the second fixing seat 302 is provided with one side of the second pressing block 301 deviating from the object to be processed, the second fixing seat 302 is also provided with a limiting pin, accurate installation can be realized for the second pressing blocks 301 of the LCD TV screens with different sizes respectively, and the whole precision is high, wear-resistant and durable.

Further, referring to fig. 4 and 5, the second pressing plate assembly 3 further includes a second connecting plate 303 connected to the connecting plate, a nut is disposed on a side of the second connecting plate 303 facing the screw 501, and the screw 501 is in threaded connection with the nut.

In the technical scheme adopted by this embodiment, in order to make the lead screw 501 drive the second connecting plate 303 to move, a nut is arranged on one side of the second connecting plate 303 facing the lead screw 501, and the nut is connected with the thread of the lead screw 501, so that the nut is driven to move along the lead screw 501 when the lead screw 501 rotates, and the second connecting plate 303 is driven to move.

Further, referring to fig. 4 and 5, the pressure maintaining device further includes two sets of sliding assemblies 4, wherein one end of the first set of sliding assemblies 4 is connected with the mounting plate 1 in a sliding manner, the other end of the first set of sliding assemblies 4 is connected with the first pressure plate assembly 2, one end of the second set of sliding assemblies 4 is connected with the mounting plate 1 in a sliding manner, and the other end of the second set of sliding assemblies 4 is connected with the second pressure plate assembly 3;

each group of sliding assemblies 4 comprises a sliding block 401 and a sliding rail 402, the sliding rail 402 is arranged on the mounting plate 1, the sliding block 401 is mounted on the sliding rail 402, one side, away from the sliding rail 402, of the sliding block 401 in the first group of sliding assemblies 4 is connected with the first pressing plate assembly 2, and one side, away from the sliding rail 402, of the sliding block 401 in the second group of sliding assemblies 4 is connected with the second pressing plate assembly 3.

In the technical scheme adopted by the embodiment, in order to reduce the friction force when the first pressure plate assembly 2 and the second pressure plate assembly 3 move and limit the moving directions of the first pressure plate assembly 2 and the second pressure plate assembly 3, two groups of sliding assemblies 4 are arranged, one group of sliding assemblies 4 corresponds to the first pressure plate assembly 2, and the other group of sliding assemblies 4 corresponds to the second pressure plate assembly 3. Each set of slide assemblies 4 includes a slide rail 402 disposed on the mounting plate 1 and a slide block 401 moving along the slide rail 402, and the slide block 401 is connected to the first platen assembly 2 or the second platen assembly 3. Preferably, the sliding blocks 401 of the first set of sliding assemblies 4 are fixedly connected to the first linkage plates 201 of the first platen assembly 2, and the sliding blocks 401 of the second set of sliding assemblies 4 are fixedly connected to the engagement plates of the second platen assembly 3.

Preferably, in order to further ensure the stability of the first platen assembly 2 and the second platen assembly 3 during movement, two slide rails 402 are provided in each set of slide assemblies 4, it can be understood that four slide rails 402 are provided side by side, two corresponding connecting plates are provided, preferably, two slide rails 402 in the middle are used for connecting the second platen assembly 3, two slide rails 402 on two sides are used for connecting the first platen assembly 2, meanwhile, the second connecting plate 303 spans two sliders 401 in the middle, and the first connecting plate 203 spans two sliders 401 on two sides.

Further, referring to fig. 4 and 5, a limit block 403 is disposed at an end of the slide rail 402 of the second set of slide assemblies 4 away from the servo motor 502.

In the technical solution adopted in this embodiment, in order to limit the movement range of the first pressure plate assembly 2 and the second pressure plate assembly 3, a limit block 403 is provided, and preferably, the limit block 403 is provided at one end of the slide rail 402 far from the servo motor 502.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pressurizer, comprising:

mounting a plate;

2. The pressurizer of claim 1, wherein the transmission assembly comprises:

the guide wheel is arranged on the mounting plate;

3. The pressurizer of claim 2, wherein the first pressure plate assembly comprises a first pressure block and a first fixed seat, one end of the first fixed seat is connected with the transmission assembly, and the first pressure block is detachably mounted at the other end of the first fixed seat.

4. The dwell apparatus of claim 3, wherein the first platen assembly further includes:

5. The pressurizer of claim 4, further comprising a pressure sensor mounted to the first connecting column, a detection end of the pressure sensor facing the connecting column for detecting a pressure of the connecting column.

6. The pressure maintaining device of claim 2, wherein the second pressing plate assembly includes a second pressing block, a second fixing base and a connecting plate, one side of the connecting plate is fixedly connected to the second toothed plate, one end of the second fixing base is connected to the connecting plate, the second pressing block is detachably mounted to the other end of the second fixing base, and the second pressing block and the first pressing block are used for clamping the object to be processed.

7. The dwell device of claim 6, wherein the second platen assembly further includes a second connecting plate connected to the connector plates, the drive assembly drivingly connecting the second connecting plate.

8. The pressurizer of any of claims 1-7, further comprising two sets of slide assemblies, a first set of the slide assemblies having one end slidably connected to the mounting plate and the other end connected to the first platen assembly, and a second set of the slide assemblies having one end slidably connected to the mounting plate and the other end connected to the second platen assembly.

9. The pressurizer of claim 8, wherein each of the sets of slide assemblies comprises a slide and a slide rail, the slide rail is disposed on the mounting plate, the slide is mounted on the slide rail, a side of the slide of the first set of slide assemblies facing away from the slide rail is connected to the first platen assembly, a side of the slide of the second set of slide assemblies facing away from the slide rail is connected to the second platen assembly, and wherein the slide rail of the second set of slide assemblies is provided with a stop.

10. The dwell device of claim 9, wherein the drive assembly includes a lead screw that drives movement of the second platen assembly and a servo motor that drives the lead screw.